The age of fossils can sometimes be determined by radiometric dating,.pdf
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The age of fossils can sometimes be determined by radiometric dating, which is based on the constant rate of decay of radioactive isotopes. The time required for half of a radioactive isotope to decay is called the half-life of that isotope. For example, the isotope carbon-14 has a half-life of 5, 730 years. Suppose it is determined that a fossilized leaf contains 12.5% of the carbon-14 that was present when the fossil formed. How old is the fossil? Express your answer numerically. Only a very small percentage of organisms actually Based on the information in the table below, rank the abundance of fossils of organisms A-E. Solution Answer: 17190 years 12.5 % C14 T1/2 of C14 = 5,730 years 12.5% ----->25%----->50%------->100% It has crossed three half lifes = 5,730 x 3 = 17190 years.
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Find an artticle or advertisment that exemplifies the use of the sta.pdf
Find an artticle or advertisment that exemplifies the use of the statistics. Then,based on the
article answer the follwing quetions. (a) Identtify your source.Include the date of publication.
(b)What is the population? Is the population tangible or conceptual? (c)What is the method of
data collection? (d)what is the sample? (e)How was the sample obtained? (f) Decide if there
seems to be a better way to take the sample? (g) Identify any one variable that reported in the
article? (h) Identify the type of data and level of measurement for the variable in (g). (i) Identify
and describe one statistic reported in the article.
Solution
Robitaille Y., Laforest S., Fournier M., Gauvin L., Parisien M., Corriveau H., Trickey F., &
Damestoy N. (2005, November). Moving Forward in Fall Prevention: An Intervention to
Improve Balance Among Older Adults in Real-World Settings. Am J Public Health, 95(11),
2049 – 2056.
The purpose of the study was to investigate the effectiveness of a group-based exercise
intervention to improve balancing ability among older adults delivered in natural settings by staff
in local community organizations.
In this study, the quasiexperimental design was used. The participants of this study were older
adults concerned about falls. In this study, community organizations were responsible for
recruiting participants and delivering the intervention. Ninety eight participants were offered the
interventions by 10 community organizations in a group of 5 to 15 persons and 7 organizations
recruited 102 participants (similar groups of 5 to 15 persons) for control group (with home-based
exercises). Participants were assessed by a physiotherapist at the beginning of the study and 3
months later. The researchers compared the demographics, health, balance, and strength of the
two groups.
The mean age of participants was 73.9 years, and 84% were women. More than half of study
participants lived alone, and almost 40% reported having fallen in the year before baseline
assessment. Comparison of intervention and control participants at baseline did not reveal
statistically significant differences in demographics, health, physical activity, or vitality
indicators. Intervention participants improved more than control participants on all statistic
balance indicators except one (lateral reach both sides). Intervention participants also showed
greater improvement in mobility and strength indicators.
The findings of this study are consistent with those of previous researchers who reported that
group-based exercises targeting balance can actually improve balance among older adults.
However, to our knowledge, this is the first study to demonstrate that intervention effects on
balance are possible when the intervention is managed by community organizations and when
participants register because they are concerned about their balance or worried about falls.
The strength of the study is that the ten intervention organizations represented a broad range of
enviro.
A researcher is studying the mean weight of a killer whale. She coll.pdf
A researcher is studying the mean weight of a killer whale. She collects sample data and
computes a confidence interval. Using the same data, she decides to increase the confidence level
and creates a new confidence interval. What happens to the confidence interval?
A.
It gets narrower.
B.
It stays the same.
C.
Impossible to determine without the numbers.
D.
It gets wider.
Solution
increase the confidence level, increase the wider of the confidence interval
Answer: D It gets wider..
Date Due Feb 8. 2017 Students Name Please name and fill in t.pdf
Date Due: Feb 8. 2017 Students Name Please name and fill in the stages of cell cycle fram a
mitotic mother celi (Figure Please identify the cells at various stages of cell cycle (Figure 2).
Mark where the cell plate should be Jocated At what stage are the sister chromatids made? At
what stage are the sister chromalids separated?
Solution
Cell division is the process by which cell divides in two cells commonly known as daughter
cells. The whole processes of cell division is divided into 4 phases viz; G1 phase, S pahse, G2
phase, M phase and Interphase. The duplicaton of spindle fibres and DNA replication mark the
begining of cell division. All theses processes is carried out in G1 and S phase. The sister
choromatids are synthesized in S phase ( second phase of interphase). These sister chromatids
held together by cohesins proteins, gets separated during anaphase stage of the cell cycle. The
main factor responsible is the degradation of cohesins proteins is separase enzymes.
Compare and contrast passive transport and active transport Compare .pdf
Compare and contrast passive transport and active transport Compare and contrast animal cells
and plant cells. Summarize the endosymbiosis theory including the evidence that supports it.
Solution
Differences
1. Passive transport : It doesn\'t require energy (ATP),
2. Active transport : it does require energy( ATP).
3. Passive transport: this moves molecules WITH the concentration gradient (high to low),
4. active transport: this moves molecules AGAINST the concentration gradient (Low to
High).
================================
Similarities
1. They (active and passive ) both allow the cell to maintain homeostasis
2. They maintain an equilibrium of substances in and out of the cell.
3. They both involve movement of ions across the plasma membrane.
ANIMAL CELL AND PLANT CELL
Animal cell
Plant cell
Cell wall
Absent
Rigid cell wall
Shape
irregular shape round
fixed shape
Centrioles
Present in all animal cells
absent
Chloroplast
Chloroplasts absent
present
lysosomes
present
absent
Nucleus
present
present
Golgi apparatus
present
present
Microtubules/ Microfilaments
present
present
Endoplasmic Reticulum
present
present
=======================================================
Endosymbiotic Theory: It was initially proposed by previous Boston University Biologist Lynn
Margulis in the 1960\'s and authoritatively in her 1981 book \"Advantageous interaction in Cell
Evolution\". Albeit now acknowledged as a very much upheld hypothesis, both she and the
hypothesis were criticized by standard scholars for various years.
hypothesis originally recommended that:
Animal cell
Plant cell
Cell wall
Absent
Rigid cell wall
Shape
irregular shape round
fixed shape
Centrioles
Present in all animal cells
absent
Chloroplast
Chloroplasts absent
present
lysosomes
present
absent
Nucleus
present
present
Golgi apparatus
present
present
Microtubules/ Microfilaments
present
present
Endoplasmic Reticulum
present
present.
42. What does a coefficient of correlation of 0.70 infer A) Almost .pdf
42. What does a coefficient of correlation of 0.70 infer? A) Almost no correlation because 0.70 is
close to 1.0 B) 70% of the variation in one variable is explained by the other C) Coefficient of
determination is 0.49 D) Coefficient of nondetermination is 0.30 E) None of the above
Solution
B) 70% of the variation in one variable is explained by the other.
4. On an illegal wolf ranch in Wyoming, gray wolves are bred and sol.pdf
4. On an illegal wolf ranch in Wyoming, gray wolves are bred and sold illegally. A mutation was
identified, generating a beautiful gray “speckled” coat color. The speckled wolves were
particularly popular with buyers. The breeders struggled to keep up with demand. They noticed
that when two speckled wolves were bred, their pups always contained some normal gray and
some speckled gray pups. In one typical season of interbreeding the speckled wolves, they
cumulatively generated 82 speckled and 38 gray pups. A. Use appropriate genetic symbols and
give the genotype of a speckled wolf. (2 points) B. State a clear genetic explanation for the
pattern illustrated
Solution
Merle is a pattern gene like the piebald gene and not a color gene.
The effect of the merle gene is to change the base coat colorcausing lighter patches resulting in a
speckled or mottled appearance to the base coat color. It may also affect the dark pigments of
eyes and nose and it can occur with any color.
The merle gene is not a dilution gene which dilutes the entire base coat color.
A. Inheritance of Merle gene: Merle gene is dominant to non-merle (solid base coat). We know
that dominant genes signified by a capital letters mask the effect of recessive genes signified by
lowercase letters.
Merle is signified by a capital M and non-merle by a lowercase m. A merle wolf only needs one
merle gene (because it is dominant) to exhibit the merle pattern. The genotype of merle wolf
would be written as Mm (heterozygous). A non-merle wolf would carry no merle genes and thus
would “genetically” be mm. The major problems occur when two merle Mm are bred together.
Mm (merle) × Mm (merle)
M
m
M
MM
Mm
m
Mm
m
MM (homozygous) is double merle wolf.
B. When two merle wolves (Mm) are bred together there is a 25% chance that they will produce
a double merle wolves (‘lethal white’ MM) – a wolf that has two copies of the merle gene. The
health consequences of these wolves vary from mild to severe. Some wolves may be born deaf,
some born blind and some born deaf and blind.
M
M
M
MM
MM
m
Mm
Mm
M
m
M
MM
Mm
m
Mm
m.
Use the given information to find the values of sin 2theta. cos2theta.pdf
Use the given information to find the values of sin 2theta. cos2theta. and tan 2theta. Sin theta =
-15/17; The terminal side of theta lies in quadrant III.sin 2theta = (Simplify sour answer,
including any radicals. Use integers or fractions for any numbers in the expression) cos2theta =
Square (Simplify sour answer, including any radicals. Use integers or fractions for any numbers
in the expression) tan 2 theta =Square (Simplify sour answer, including any radicals. Use
integers or fractions for any numbers in the expression)
Solution
sin = -15/17 is in QIII
now by sin^2 +cos^2 =1
cos^2 = 1- (-15/17)^2
cos = -8/17
so now sin2 =2sin.cos
= 2(-15/17) .(-8/17)
= 240/289
cos2 =cos^2 -sin^2
= (-8/17)^2 - (-15/17)^2
=64/289 - 225/289
= -161/289
tan(2) = sin2/cos = 240/-161
= -240/161.
What is the command to transfer the file stored in ~lab3README fro.pdf
What is the command to transfer the file stored in ~/lab3/README from your CSE 15L account
to the same directory on your current computer. Use your cs15x account.
my cs15x account is cs15xww
Solution
Secure Copy (scp)
scp allows files to be copied to, from, or between different hosts. It uses ssh for data transfer and
provides the same authentication and same level of security as ssh.
The basic syntax of scp is
-r is uesd to copy an entire directory from one host to another and specify the directory
This copies the folder README from a remote host to the local host.
Recommended
Find an artticle or advertisment that exemplifies the use of the sta.pdf
Find an artticle or advertisment that exemplifies the use of the statistics. Then,based on the
article answer the follwing quetions. (a) Identtify your source.Include the date of publication.
(b)What is the population? Is the population tangible or conceptual? (c)What is the method of
data collection? (d)what is the sample? (e)How was the sample obtained? (f) Decide if there
seems to be a better way to take the sample? (g) Identify any one variable that reported in the
article? (h) Identify the type of data and level of measurement for the variable in (g). (i) Identify
and describe one statistic reported in the article.
Solution
Robitaille Y., Laforest S., Fournier M., Gauvin L., Parisien M., Corriveau H., Trickey F., &
Damestoy N. (2005, November). Moving Forward in Fall Prevention: An Intervention to
Improve Balance Among Older Adults in Real-World Settings. Am J Public Health, 95(11),
2049 – 2056.
The purpose of the study was to investigate the effectiveness of a group-based exercise
intervention to improve balancing ability among older adults delivered in natural settings by staff
in local community organizations.
In this study, the quasiexperimental design was used. The participants of this study were older
adults concerned about falls. In this study, community organizations were responsible for
recruiting participants and delivering the intervention. Ninety eight participants were offered the
interventions by 10 community organizations in a group of 5 to 15 persons and 7 organizations
recruited 102 participants (similar groups of 5 to 15 persons) for control group (with home-based
exercises). Participants were assessed by a physiotherapist at the beginning of the study and 3
months later. The researchers compared the demographics, health, balance, and strength of the
two groups.
The mean age of participants was 73.9 years, and 84% were women. More than half of study
participants lived alone, and almost 40% reported having fallen in the year before baseline
assessment. Comparison of intervention and control participants at baseline did not reveal
statistically significant differences in demographics, health, physical activity, or vitality
indicators. Intervention participants improved more than control participants on all statistic
balance indicators except one (lateral reach both sides). Intervention participants also showed
greater improvement in mobility and strength indicators.
The findings of this study are consistent with those of previous researchers who reported that
group-based exercises targeting balance can actually improve balance among older adults.
However, to our knowledge, this is the first study to demonstrate that intervention effects on
balance are possible when the intervention is managed by community organizations and when
participants register because they are concerned about their balance or worried about falls.
The strength of the study is that the ten intervention organizations represented a broad range of
enviro.
A researcher is studying the mean weight of a killer whale. She coll.pdf
A researcher is studying the mean weight of a killer whale. She collects sample data and
computes a confidence interval. Using the same data, she decides to increase the confidence level
and creates a new confidence interval. What happens to the confidence interval?
A.
It gets narrower.
B.
It stays the same.
C.
Impossible to determine without the numbers.
D.
It gets wider.
Solution
increase the confidence level, increase the wider of the confidence interval
Answer: D It gets wider..
Date Due Feb 8. 2017 Students Name Please name and fill in t.pdf
Date Due: Feb 8. 2017 Students Name Please name and fill in the stages of cell cycle fram a
mitotic mother celi (Figure Please identify the cells at various stages of cell cycle (Figure 2).
Mark where the cell plate should be Jocated At what stage are the sister chromatids made? At
what stage are the sister chromalids separated?
Solution
Cell division is the process by which cell divides in two cells commonly known as daughter
cells. The whole processes of cell division is divided into 4 phases viz; G1 phase, S pahse, G2
phase, M phase and Interphase. The duplicaton of spindle fibres and DNA replication mark the
begining of cell division. All theses processes is carried out in G1 and S phase. The sister
choromatids are synthesized in S phase ( second phase of interphase). These sister chromatids
held together by cohesins proteins, gets separated during anaphase stage of the cell cycle. The
main factor responsible is the degradation of cohesins proteins is separase enzymes.
Compare and contrast passive transport and active transport Compare .pdf
Compare and contrast passive transport and active transport Compare and contrast animal cells
and plant cells. Summarize the endosymbiosis theory including the evidence that supports it.
Solution
Differences
1. Passive transport : It doesn\'t require energy (ATP),
2. Active transport : it does require energy( ATP).
3. Passive transport: this moves molecules WITH the concentration gradient (high to low),
4. active transport: this moves molecules AGAINST the concentration gradient (Low to
High).
================================
Similarities
1. They (active and passive ) both allow the cell to maintain homeostasis
2. They maintain an equilibrium of substances in and out of the cell.
3. They both involve movement of ions across the plasma membrane.
ANIMAL CELL AND PLANT CELL
Animal cell
Plant cell
Cell wall
Absent
Rigid cell wall
Shape
irregular shape round
fixed shape
Centrioles
Present in all animal cells
absent
Chloroplast
Chloroplasts absent
present
lysosomes
present
absent
Nucleus
present
present
Golgi apparatus
present
present
Microtubules/ Microfilaments
present
present
Endoplasmic Reticulum
present
present
=======================================================
Endosymbiotic Theory: It was initially proposed by previous Boston University Biologist Lynn
Margulis in the 1960\'s and authoritatively in her 1981 book \"Advantageous interaction in Cell
Evolution\". Albeit now acknowledged as a very much upheld hypothesis, both she and the
hypothesis were criticized by standard scholars for various years.
hypothesis originally recommended that:
Animal cell
Plant cell
Cell wall
Absent
Rigid cell wall
Shape
irregular shape round
fixed shape
Centrioles
Present in all animal cells
absent
Chloroplast
Chloroplasts absent
present
lysosomes
present
absent
Nucleus
present
present
Golgi apparatus
present
present
Microtubules/ Microfilaments
present
present
Endoplasmic Reticulum
present
present.
42. What does a coefficient of correlation of 0.70 infer A) Almost .pdf
42. What does a coefficient of correlation of 0.70 infer? A) Almost no correlation because 0.70 is
close to 1.0 B) 70% of the variation in one variable is explained by the other C) Coefficient of
determination is 0.49 D) Coefficient of nondetermination is 0.30 E) None of the above
Solution
B) 70% of the variation in one variable is explained by the other.
4. On an illegal wolf ranch in Wyoming, gray wolves are bred and sol.pdf
4. On an illegal wolf ranch in Wyoming, gray wolves are bred and sold illegally. A mutation was
identified, generating a beautiful gray “speckled” coat color. The speckled wolves were
particularly popular with buyers. The breeders struggled to keep up with demand. They noticed
that when two speckled wolves were bred, their pups always contained some normal gray and
some speckled gray pups. In one typical season of interbreeding the speckled wolves, they
cumulatively generated 82 speckled and 38 gray pups. A. Use appropriate genetic symbols and
give the genotype of a speckled wolf. (2 points) B. State a clear genetic explanation for the
pattern illustrated
Solution
Merle is a pattern gene like the piebald gene and not a color gene.
The effect of the merle gene is to change the base coat colorcausing lighter patches resulting in a
speckled or mottled appearance to the base coat color. It may also affect the dark pigments of
eyes and nose and it can occur with any color.
The merle gene is not a dilution gene which dilutes the entire base coat color.
A. Inheritance of Merle gene: Merle gene is dominant to non-merle (solid base coat). We know
that dominant genes signified by a capital letters mask the effect of recessive genes signified by
lowercase letters.
Merle is signified by a capital M and non-merle by a lowercase m. A merle wolf only needs one
merle gene (because it is dominant) to exhibit the merle pattern. The genotype of merle wolf
would be written as Mm (heterozygous). A non-merle wolf would carry no merle genes and thus
would “genetically” be mm. The major problems occur when two merle Mm are bred together.
Mm (merle) × Mm (merle)
M
m
M
MM
Mm
m
Mm
m
MM (homozygous) is double merle wolf.
B. When two merle wolves (Mm) are bred together there is a 25% chance that they will produce
a double merle wolves (‘lethal white’ MM) – a wolf that has two copies of the merle gene. The
health consequences of these wolves vary from mild to severe. Some wolves may be born deaf,
some born blind and some born deaf and blind.
M
M
M
MM
MM
m
Mm
Mm
M
m
M
MM
Mm
m
Mm
m.
Use the given information to find the values of sin 2theta. cos2theta.pdf
Use the given information to find the values of sin 2theta. cos2theta. and tan 2theta. Sin theta =
-15/17; The terminal side of theta lies in quadrant III.sin 2theta = (Simplify sour answer,
including any radicals. Use integers or fractions for any numbers in the expression) cos2theta =
Square (Simplify sour answer, including any radicals. Use integers or fractions for any numbers
in the expression) tan 2 theta =Square (Simplify sour answer, including any radicals. Use
integers or fractions for any numbers in the expression)
Solution
sin = -15/17 is in QIII
now by sin^2 +cos^2 =1
cos^2 = 1- (-15/17)^2
cos = -8/17
so now sin2 =2sin.cos
= 2(-15/17) .(-8/17)
= 240/289
cos2 =cos^2 -sin^2
= (-8/17)^2 - (-15/17)^2
=64/289 - 225/289
= -161/289
tan(2) = sin2/cos = 240/-161
= -240/161.
What is the command to transfer the file stored in ~lab3README fro.pdf
What is the command to transfer the file stored in ~/lab3/README from your CSE 15L account
to the same directory on your current computer. Use your cs15x account.
my cs15x account is cs15xww
Solution
Secure Copy (scp)
scp allows files to be copied to, from, or between different hosts. It uses ssh for data transfer and
provides the same authentication and same level of security as ssh.
The basic syntax of scp is
-r is uesd to copy an entire directory from one host to another and specify the directory
This copies the folder README from a remote host to the local host.
2.51. Why does earth have seasons2. What is the origin of the t.pdf
2.5
1. Why does earth have seasons?
2. What is the origin of the term Equinox?
3. What is the orgin of the term Solstice?
4. Most people in the US think the seasons are caused by changing distance between the Eart and
the Son. Why do you think this is?
5. What type of seasons would the Earth have if its spin axis was in the plane of its orbit?
6. What type of seasons would the Earth have if its spin axis was exactly perpendicular to its
orbital plane?
7. What do you think would happen if the Earth\'s spin axis wobbled randomly around on a
monthly basis?
8. What does the term latitude mean?
9. What is meant by the term Equator?
10. What is an ellipse?
11. What are meant by the terms perihelion and aphelion?
12. If it is summer in Australia, what season is it in New Mexico?
Solution
1 question at a time:
2.5.1
We have seasons because the earth is tilted (wonky) as it makes its yearly journey around the
sun. TheEarth\'s axis is tilted at an angle of 23.5 degrees. This means that the Earth is always
\"pointing\" to one side as it goes around the Sun..
Write the product as a sum or difference. Write the product as a sum.pdf
Write the product as a sum or difference. Write the product as a sum or difference. sin x/7 cos
8x/7
Solution
sin(x/7)cos(8x/7)
sinA - sinB=2cos(A+B)/2 sin(A-B)/2
1/2(sinA -sinB)= sin(A-B)/2 cos (A+B)/2
comparing the given expression with the above formula we get
A-B/2=x/7 and A+B/2=8x/7
A-B=2x/7 and A+B= 16x/7
A=9x/7 and B = x
Therefore the required expression is
sin(9x/7)/2 -sinx/2.
Which osmotic and ionic strategies must marine teleost fishes employ.pdf
Which osmotic and ionic strategies must marine teleost fishes employ?
Solution
marine teleost fish shows the hypoosmotic regulation. they actively take ions into their blood
streams. the water is lost from the body by osmosis and sodium is uptake by diffusion. thus,
Marine-(b) Actively uptake water.
What types of social and culture trends affect REISolution1. .pdf
What types of social and culture trends affect REI?
Solution
1. Social and cultural trends affect a community’s behavior and create greater demand for
various types of products. For example, many communities are aware of stresses to the
ecosystem caused by population demands, pollution and other factors. This awareness
encourages many to engage in what has heretofore been considered only recreational activities
such as walking and cycling. These are activities that are now being taken up as a means or
relieving traffic problems or addressing air quality issues. This has increased the demand for
high quality footwear or city-friendly bicycles.
2. Social and cultural trends also affect the average retirement age and how older persons are
spending their retirement. Advances in medicine have greatly improved the quality of life for
retirees. Also, social attitudes have changed as people accept that retirement is not simply the
time when a person who has worked hard all their life now sits and waits to die. Retirees are
more active than ever before, and they enjoy more disposable income as they have invested and
saved toward retirement. This trend means that an heretofore untapped market catering to the
older person or the retiree is opened up..
Which of the following are in the order Primates (Multiple answers).pdf
Which of the following are in the order Primates? (Multiple answers)
Tarsians
Lemurs
Gorillas
Lorises
Solution
Answer: All the mentioned (Tarsians, Lemurs, Gorillas & Lorises) animals come under the order
primates.
The primates include the most familiar of the placental mammals, as the order includes Homo
sapiens. Primates also include familiar animals, such as the chimpanzees, gorillas, and monkeys,
as well as the somewhat less familiar lemurs, lorises.
Some researchers prefer an alternate classification that divides the primates into 2 suborders:
Prosimii (lemurs, lorises, and tarsiers) and Anthropoidea (monkeys, apes, and humans)..
What are the issues and benefits of employing older workers Wh.pdf
What are the issues and benefits of employing older workers?
What are the issues and benefits of employing older workers?
Solution
Employing older workers has several benefits because of following factors :
They bring experience along with them. They weere already tested in past. More confident and
mature in approach. They older workers are more organized and honest.
On the other side, having an older workers means, they might be technologically outdated. They
might have health problems. Higher wages due to experience..
What is current I1What is current I2What is current I3 14 V 1.pdf
What is current I1?
What is current I2?
What is current I3? 14 V 10 13 4 12V 14 Dr. Birdwell asks that you solve for the currents as
shown. If the actual current is in the opposite direction as shown, specify it as a negative current.
EXAMPLE
Solution
Let potential at A and C =X
let potential at D=Y
and at B=14 V
(X-14)=I4x6
0-X=I2x10
X-Y=12xI5
Y-12-X=4xI1
I4+I5=I1+I2
((X-14)/6)+((X-Y)/12)=((Y-12-X)/4)+(-X/10)
(6X/10)-(Y/3)=-2/3
Y-14=14xI3
I3=I2-I4
((Y-14)/14)=(-X/10)-((X-14)/6)
(Y/14)+(4X/15)=10/3
(6X/10)-(Y/3)=-2/3
X=1340/166
Y=1372/83
I1=((Y-12-X)/4)=-0.8855 A
I2=(-X/10)=-0.8072A
I3=((Y-14)/14)=0.1807A.
Use your thoughts about the essay, , and your own reflections on y.pdf
Use your thoughts about the essay, , and your own reflections on your current and past
relationship with Nature
1- Describe your relationship with the natural world. Give some serious thought to what Nature
means and has meant to your life. Reflect on these questions:
2 -Do you think of yourself more apart from or more a part of Nature?
3- How connected do you feel the non-human occupants (i.e., animals, plants, organisms big and
small) of Earth,?
4- To what degree do you relate your existence to theirs?
5 -When you hear the word “wilderness,” what associations do you make or feelings does it
provoke in your mind?
6 -Do you hold value in far-off, wild places even though you will likely never physically
experience them?
7 - What value does Horse Lick Creek hold for Barbara Kingsolver? Do you have a natural place
that provides a similar benefit to you? If not, do you still appreciate the value such a place could
provide and why it is important to protect such places?
-The daughter of a doctor who would accept home-grown vegetables from patients too poor to
pay in cash, Kingsolver was born in Annapolis, Maryland, and grew up in Nicholas County,
Kentucky, a rural area where most people earned a subsistence income by farming. She earned
degrees in biology from DePauw University and the University of Arizona, and has worked as a
freelance writer and author since 1985.
This is the kind of April morning no other month can touch: a world tinted in watercolor pastels
of redbud, dogtooth violet, and gentle rain. The trees are begin ning to shrug off winter; the dark,
leggy maple woods are shot through with gleam ing constellations of white dogwood blossoms.
The road winds through deep forest near Cumberland Falls, Kentucky, carrying us across the
Cumberland Plateau toward Horse Lick Creek. Camille is quiet beside me in the front seat, until
at last she sighs and says, with a child\'s poetic logic, “This reminds me of the place I always like
to think about.”
Me too, I tell her. It’s the exact truth. I grew up roaming wooded hollows like these, though they
were more hemmed-in, keeping their secrets between the wide-open cattle pastures and tobacco
fields of Nicholas County, Kentucky. My brother and sister and I would hoist cane fishing poles
over our shoulders, as if we intended to make ourselves useful, and head out to spend a Saturday
doing nothing of the kind. We haunted places we called the Crawdad Creek, the Downy Woods
(for downy woodpeckers and also for milkweed fluff), and—thrillingly, because we’d once
found big bones there—Dead Horse Draw. We caught crawfish with nothing but patience and
our hands, boiled them, with wild onions over a campfire, and ate them and declared them the
best food on earth. We collected banana-scented pawpaw fruits, and were tempted by fleshy,
fawn-colored mushrooms but left those alone. We watched birds whose names we didn’t know
build nests in trees whose names we generally did. We witnessed the unfurling of hickory an.
12-1 Group Work Preliminary and Program Development ResearchPurp.pdf
12-1: Group Work: Preliminary and Program Development Research
Purpose
To assess your ability to:
Determine the role of research in health education and health promotion.
Distinguish the four phases, based on research, in the design of health promotions programs.
Discuss some typologies of research, relating to the type of data, research styles, and research
approach.
Action Items
In this assignment, you will conduct preliminary research to identify behavioral and
environmental factors contributing to a health problem of your choice, as well as relevant
stakeholders.
This is what you will do:
Select a health problem of your choice
Select at least three of the following techniques:
Epidemiological data
Formal and informal interviews with key informants
Group sessions
Focus group interviews
Questionnaires
Rapid participatory appraisal technique
Use the techniques you have selected to collect data on behavioral and environmental factors
contributing to the health problem you chose, as well as relevant stakeholders.
Write a report that includes the health problem, techniques, and findings.
Submit your report and be prepared to share it with your classmates.
Submission Instructions
Complete and submit this assignment per your professor\'s instructions.
phc-112 health education and promotion / please i need the answer very quickl
Introduction
The focus this week is the role of research in health promotion. We will consider the four phases
of research in the design of health promotions programs. These are: preliminary research,
program development research, monitoring, and evaluation. Preliminary research focuses on
diagnosis of the existing situation, the environmental and behavioral causes of health problems
and the determinants of these causes. Program development research facilitates the development
of programs and action plans. Monitoring aims to examine the ways in which programs are
implemented, including the processes of participation and collaboration, in order to keep track of
and/or improve the program. Evaluation involves a review of the results achieved in the program
in terms of its effectiveness, efficiency and validity.
We will also consider the types and styles of research. Types of research include qualitative and
quantitative. Some common research styles discussed in your textbook include experimental,
survey, documentary-historical, and field study. During a group project this week, you will have
an opportunity to conduct preliminary research to identify behavioral and environmental factors
contributing to a health problem.
Solution
- since you did not clarified for which specific question you need answer so am starting off
according to my understanding ;
° Preliminary research to identify behavioural and environmental problems affecting our health :-
~ preliminary research demonstrates the health benefits of sustainable communities. However,
the impact of mediating and moderating factors within the built environment on health mu.
This homework consists of 8 problems. The first 7ask that .pdf
\'\'\'
This homework consists of 8 problems. The first 7
ask that you fill in a blank in the code below. The
last problem asked you to draw some conclusions from
the data generated.
You should submit this .py file with the blanks filled
in. Problem 8 should be answered as a triple quoted
comment after the code.
\'\'\'
\'\'\'
Type your name here
\'\'\'
# The Bells
# Edgar Allen Poe
theBells = \'\'\'
HEAR the sledges with the bells,
Silver bells!
What a world of merriment their melody foretells!
How they tinkle, tinkle, tinkle,
In the icy air of night!
While the stars, that oversprinkle
All the heavens, seem to twinkle
With a crystalline delight;
Keeping time, time, time,
In a sort of Runic rhyme,
To the tintinnabulation that so musically wells
From the bells, bells, bells, bells,
Bells, bells, bells—
From the jingling and the tinkling of the bells.
Hear the mellow wedding bells,
Golden bells!
What a world of happiness their harmony foretells!
Through the balmy air of night
How they ring out their delight!
From the molten-golden notes,
And all in tune,
What a liquid ditty floats
To the turtle-dove that listens, while she gloats
On the moon!
Oh, from out the sounding cells,
What a gush of euphony voluminously wells!
How it swells!
How it dwells
On the Future! how it tells
Of the rapture that impels
To the swinging and the ringing
Of the bells, bells, bells,
Of the bells, bells, bells, bells,
Bells, bells, bells—
To the rhyming and the chiming of the bells!
Hear the loud alarum bells,
Brazen bells!
What a tale of terror, now, their turbulency tells!
In the startled ear of night
How they scream out their affright!
Too much horrified to speak,
They can only shriek, shriek,
Out of tune,
In a clamorous appealing to the mercy of the fire,
In a mad expostulation with the deaf and frantic fire,
Leaping higher, higher, higher,
With a desperate desire,
And a resolute endeavor
Now—now to sit or never,
By the side of the pale-faced moon.
Oh, the bells, bells, bells!
What a tale their terror tells
Of Despair!
How they clang, and clash, and roar!
What a horror they outpour
On the bosom of the palpitating air!
Yet the ear it fully knows,
By the twanging
And the clanging,
How the danger ebbs and flows;
Yet the ear distinctly tells,
In the jangling
And the wrangling,
How the danger sinks and swells,—
By the sinking or the swelling in the anger of the bells,
Of the bells,
Of the bells, bells, bells, bells,
Bells, bells, bells—
In the clamor and the clangor of the bells!
Hear the tolling of the bells,
Iron bells!
What a world of solemn thought their monody compels!
In the silence of the night
How we shiver with affright
At the melancholy menace of their tone!
For every sound that floats
From the rust within their throats
Is a groan.
And the people—ah, the people,
They that dwell up in the steeple,
All alone,
And who tolling, tolling, tolling,
In that muffled monotone,
Feel a glory in so rolling
On the human heart a stone—
They are neither man nor woman,
They are n.
this is verilog HDL classWhat are the basic components of a module.pdf
this is verilog HDL class
What are the basic components of a module? Which components are mandatory?
Solution
1) Module Name, Port List, Port Declarations, Parameters, Declarations of wires, regs and other
variables, Data flow statements, Instantiation of lower level modules, always and initial blocks,
Tasks and functions, endmodule statement.
2) module, module name,and endmodule..
The Hox genes are responsible for determining the anterior-posterior.pdf
The Hox genes are responsible for determining the anterior-posterior identity of body regions
(segments) in the developing insect embryo. Different Hox genes are turned on (expressed) in
different segments of the body, and in this way they determine which segments become head and
which thorax, which develop legs and which antennas. One surprising thing about the Hox genes
is that they usually occur in a row on the same chromosome and in the same order as the body
regions that they control. For example, the fruit fly Drosophila Melanogaster has eight Hox
genes located on a chromosome in exactly the same order as the body regions in which they are
expressed, from head to tail. If the eight genes were thrown randomly onto the same
chromosome, what is the probability that they would line up in the same order as the segments in
which they expressed?
Solution
This is a permutations problem, where you can think of each Hox gene being \"chosen\" for a
\"slot\" in the chromosome has its own probability. Contrast this to combinations problems,
where order does NOT matter. Here\'s the formula for the number of possible permutations:
P = n! / (n-k)! where n = the pool of genes, and k = the number of genes we\'re pulling out. There
are 8 genes we\'re working with, and we\'re putting them all in a chromosome. So the number of
permutations is:
P = 8! / (8-8)! = 8! / 0! = 8!/1 = 8*7*6*5*4*3*2*1 = 40320 different permutations.
So, that\'s how many different ways these genes can be chaotically and randomly oriented. But
we want them in a very specific order - one after the next, specifying a position for each and
every gene. Normally in permutations problems, you\'d have some leeway with how many
different ways the proposed sequence can be achieved (e.g. drawing a red then blue marble,
when there are 20 red marbles and 10 blue marbles). But in our case, this number is 1, because
there\'s only one way to achieve our proposed sequence. Therefore, the probability is 1/40320, or
0.0025% (about a 400th of a percent). Notice that this has logical implications for the function of
these Hox genes; they were probably slowly built off one another in an evolutionary sequence as
opposed to randomly falling into place. An organism with a mutation in their Hox genes will
have grotesque limb abberations - an example is a Drosophila mutant with a leg coming out of its
head..
Simple java programTopic Binary File IOCreate a simple applic.pdf
Simple java program:
Topic: Binary File I/O
Create a simple application called contact list that will accept a person’s first and last name from
a dialog box, the accept a phone number from a dialog box.
Now save that information to a binary file.
You’ll only have one record.
----------------------------
Next,
Go back to your contact list application modify it such that that will accept a person’s first and
last name from a dialog box, then accept a phone number from a dialog box. It will repeat this
process until the user types in some sentinel value (terminating value) for name.
If the file doesn’t exist currently, you’ll create a new file. If it does, you’ll append to it.
Solution
public class SimpleJava {
string first,last, phone;
publicstaticvoid main(String[] args) throws Exception {
String first = System.console().readLine();
DataOutputStream out = openOutputStream(\"binary\");
while(!first.equals(\"Terminate\")) {
String last = System.console().readLine();
String phone = System.console().readLine();
out.writeUTF(first+last+phone);
String first = System.console.readline();
}
}
}.
READ BEFORE YOU START You are given a partially completed pr.pdf
// READ BEFORE YOU START: // You are given a partially completed program that creates a
list of pets with their list of checkups. // Each pet has the corresponding information: name,
breed, and a linked list of checkups. // To begin, you should trace through the given code and
understand how it works. // Please read the instructions above each required function and follow
the directions carefully. // If you modify any of the given code, the return types, or the
parameters, you risk failing the automated test cases. // // You are to assume that all input is
valid: // Valid name: String containing alphabetical letters beginning with a capital letter // Valid
breed: String containing alphabetical letters beginning with a capital letter // Valid date: String
in the following format: \"MM/DD/YYYY\" ex: \"01/01/2010\" // All input will be a valid length
and no more than the allowed amount of memory will be used // // Q1 : CLASS METHODS Part
1 : Constructor and Accessor Methods for Pet class in Pet.cpp file ( 5 points) // Q2 : CLASS
METHODS Part 2 : Class methods for Pet class in Pet.cpp file (10
points) // Q3 : Add Function in hw09.cpp file
( 5 points) // Q4 : Search Function in hw09.cpp file
(10 points) // Q5 : Remove One Function in hw09.cpp
file (15 points) // Q6 : Implement
cin / cout for the lines in main without modifying the functionality ( 5 points)
#include #include #include #include \"Container.h\" #include \"Pet.h\" #include \"Checkup.h\"
using namespace std; // forward declarations void flush(); void branching(char); void
helper(char); void add_pet(string, string); Pet* search_pet(string, string); void
remove_pet(string, string); void clean_up(Pet*); void print_all(); void remove_all(); Container*
list = NULL; // global list int main() { _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF |
_CRTDBG_LEAK_CHECK_DF); // Use to check for memory leaks in VS char ch = \'i\';
do { // Q6: Implement cin / cout for the lines below without modifying the
functionality (5 points) // (change all printf statements to cout and read the next char
using cin) printf(\"Please enter your selection\ \"); printf(\"\\ta: add a new pet
to the list\ \"); printf(\"\\tc: add a new checkup for a pet\ \"); printf(\"\\tr:
remove a pet from the list\ \"); printf(\"\\tp: print all pets on the list\ \");
printf(\"\\tq: quit\ \"); ch = getchar(); // End Q6 flush();
branching(ch); } while (ch != \'q\'); remove_all(); list = NULL; return 0; }
void flush() { int c; do c = getchar(); while (c != \'\ \' && c != EOF); } void
branching(char c) { switch (c) { case \'a\': case \'c\': case \'r\': case \'p\':
helper(c); break; case \'q\': break; default:
printf(\"\ Invalid input!\ \ \"); } } // The helper function is used to determine how much data
is needed and which function to send that data to. // It uses pointers and values that are returned
from some functions to produce the correct ouput. // There is no implementation needed here, but
you should study this function and know how it works. //.
Select oneYes, because the correlation appears to be strong.No,.pdf
Select one:
Yes, because the correlation appears to be strong.
No, because we would be trying to find a value outside of our data range.
No, because the data is not at all linear.
Yes, as long as we can calculate the regression line (using technology).
Solution
The points in the scatterplot does not show a linearity.
So, the appropriate option is,
No, because the data is not at all linear..
Prove the hyperbolic function formula sinhx(2x)=2sinhxcoshxSol.pdf
Prove the hyperbolic function formula: sinhx(2x)=2sinhxcoshx
Solution
Just use the definitions of sinh(x) and cosh(x): sinh(x) = [e^x - e^(-x)]/2, cosh(x) =
[e^x + e^(-x)]/2 So, simply expand! sinh(2x) = [e^(2x) - e^(-2x)]/2 = [e^x - e^(-x)][e^x + e^(-
x)]/2 = 2 [[e^x - e^(-x)]/2][[e^x + e^(-x)]/2] = 2sinh(x)cosh(x).
1) What data structure will you use for iterative post-order tree tr.pdf
1) What data structure will you use for iterative post-order tree traversal? Explain how.
2) Given a binary tree (not necessarily a BST), return all root-to-leaf paths. Explain two
solutions: one using stack, another one using queue.
No code, just psuedocode + Description
Solution
1) stack data structure is used for iterative post-order tree traversal.
The idea is to move down to leftmost node using left pointer. While moving down, push root and
root’s right child to stack. Once we reach leftmost node, print it if it doesn’t have a right child. If
it has a right child, then change root so that the right child is processed before.
Algorithm
2)DFS uses stack
In depth-first search the idea is to travel as deep as possible from neighbour to neighbour before
backtracking. What determines how deep is possible is that you must follow edges, and you
don\'t visit any vertex twice.
pseudocode:
BFS uses queue
BFS starting from vertex v:
create a queue Q
mark v as visited and put v into Q
while Q is non-empty
remove the head u of Q
mark and enqueue all (unvisited)
neighbours of u.
Other diseases, called collagen vascular diseases, affect the protein.pdf
Other diseases, called collagen vascular diseases, affect the protein collagen, the main
component of collagen fibers Predict the possible consequences of defective collagen fibers on
specific organs an tissues. How would the effects of a collagen vascular disease that affected
only the collagen in reticular fibers effects seen with question 2? Why?
Solution
2. ANS:
Collagen:
It is the most abundant animal protein on earth. It is present in the extra cellular spaces bones,
tendons, ligaments, gums, teeth and wall of blood vessels.
It is a homo dimer, made up of 3 identical polypeptide chains. The sequence of collagen is rich in
glycine and prolins and the sequence is Glycine – Proline – Hydroxy proline.
In the body 90% of the collagen is Type I collagen.
Type I: skin, tendon, vascular ligature, organs and bone
Type II: cartilage
Type III: reticulate
Type IV: forms basal lamina, the epithelium-secreted layer of the basement membrane.
Type V: cell surfaces, hair and placenta
Most of the collagen diseases are arisen due to the genetic defects or nutritional deficiencies.
1. Osteogenesis imperfect: It is a type I collagen autosomal disorder. In this bones and
connective tissue are affected.
2. Chondrodysplasias: It is a type II collagen disease, mainly caused by mutations. In this
skeletal bone are affected.
3. Alport syndrome: It is a genetic disorder. In this disorder kidneys and eyes are mostly affected
in during the childhood.
4. Osteoporosis: It is mainly associated with reduced levels of collagen in the skin and bones.
5. Scurvy: It is mainly associated with vitamin C. Multiple collagen tissues are affected and leads
to bleeding gums, loose of tooth, bones are fragile and internal hemorrhage.
3. ANS:
Elastic collagen disorders are mainly caused by different mutations. Among this some types are
lethal, leading to the rupture of arteries. This type of disorder occurs with the elastic collagen
accumulation and elastotic degeneration.
Ehlers Danlos syndrome is ten different types of disorder. Type III collagen mutation caused this
disorder..
Discuss the origins of mitochondria and chloroplasts. Look at them i.pdf
Discuss the origins of mitochondria and chloroplasts. Look at them in an evolutionary and ATP
(energy) sense, please.
Solution
According to endosymbiotic theory, chloroplasts in cyanobacteria possess proton motive force in
their membrane to drive protons through electron transport chain finally to drive ATP synthesis.
This is followed by evolution of mitochondria in eukaryotes because of higher level of tissue
organization during evolution of higher multicellular species i.e. The evolution has take place
during 2.5 million years ago & hominids have evolved in this period and they have similar ETC
as similar to present humans. The oxido-reduction mediating cytochrome complexes from
complex-I, II, III & IV to synthesize ATP are similar even 10000 years ago during the evolution
of low level eukaryotes to higher level of eukaryotes. Some of the changes in oxidative
phosphorylation are only due to development of \"higher level of tissue organization\" in humans
ETC has acquired due to natural selection to meet their energy needs as an evolutionary
adaptation.
Evolutionary adaptations include that sporophytes evolved gradually with increased size and
with longer life, period and gametophyte size, associated existence is drastically reduced. Plants
developed the following feature in their life cycle along with chlorophyll as food synthesizing
adaptation according to endosymbiotic theory.
The mechanism of origin of chloroplasts of eukaryotes (mainly land plants) originated by the
engulfment (the method of endosymbiosis) of an ancestral photosynthetic bacterium by an
ancestral eukaryotic cell, as a result of primitive evolutionary adaptation of land plants & aquatic
plants. There are total two hypothesis regarding the two times of evolution of chloroplasts
because engulfed bacterium by the eukaryotes was an alphaproteobacteria. This bacterium is an
autotroph can carry out photosynthesis with mutual symbiosis to eukaryote result in \"anchoring
respiration mechanism\" in the host eukaryotic cells, finally prokaryote, become a chloroplast.
Primary endosymbiosis is said to have happened meticulously \"once\" followed by secondary
endosymbiosis (the engulfment of an ancestral chloroplast-containing eukaryote by anther
eukaryotic cell) in other lineages has occurred and has further diverged. Chloroplasts are the
photosynthetic organelles of plats and they possess double membrane to maintain adequate
proton gradient generated from the splitting of water molecules in the presence of light and
further to promote ATP synthesis in the presence of ATPsynthase. This double membrane
profoundly enables maintaining stable position of other cytochrome complexes, plastoquinone
complexes of photosystem I & II between stroma and thylakoid membranes as part of
evolutionary aspect.
Endosymbiotic theory is about the evidence that supports the evolution of endosymbiotic
organelles such as chloroplasts & mitochondria from prokaryotes. There are several similarities
between th.
Match the following 1. Natural killer cells2. B cells3. Cy.pdf
Match the following:
1. Natural killer cells
2. B cells
3. Cytoxic T lymphocytes
4. Helper T cells
5. Neutrophils
A. Antibody producing cells
B. Kills target cells after being activated via MHC
C. Effector cell expressing the CD4 co receptor
D. First cell to arrive where there is inflammation
E. Lymphocyte with no T or B cell receptors
Match the following:
1. Natural killer cells
2. B cells
3. Cytoxic T lymphocytes
4. Helper T cells
5. Neutrophils
A. Antibody producing cells
B. Kills target cells after being activated via MHC
C. Effector cell expressing the CD4 co receptor
D. First cell to arrive where there is inflammation
E. Lymphocyte with no T or B cell receptors
1. Natural killer cells
2. B cells
3. Cytoxic T lymphocytes
4. Helper T cells
5. Neutrophils
A. Antibody producing cells
B. Kills target cells after being activated via MHC
C. Effector cell expressing the CD4 co receptor
D. First cell to arrive where there is inflammation
E. Lymphocyte with no T or B cell receptors
Solution
1. E
Natural killer cell are 10 percent of total lymphocyte population but they are neither B cells nor
T cells
2. 1
B-cells are antibody producing cells.
3.B
Cytotoxic t cells recognise the foreign peptide in association with Claas1 MHC protein
4. C
Helper T cells are Effector cells expressing the CD4 co receptor
5.D
Neutrophil are the First cell to arrive where there is inflammation..
The geography of Taylor Swift - some ideas
Geographical themes connected with Taylor Swift's ERAS tour - coming to the UK in June 2024
Unit 8 - Information and Communication Technology (Paper I).pdf
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
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2.51. Why does earth have seasons2. What is the origin of the t.pdf
2.5
1. Why does earth have seasons?
2. What is the origin of the term Equinox?
3. What is the orgin of the term Solstice?
4. Most people in the US think the seasons are caused by changing distance between the Eart and
the Son. Why do you think this is?
5. What type of seasons would the Earth have if its spin axis was in the plane of its orbit?
6. What type of seasons would the Earth have if its spin axis was exactly perpendicular to its
orbital plane?
7. What do you think would happen if the Earth\'s spin axis wobbled randomly around on a
monthly basis?
8. What does the term latitude mean?
9. What is meant by the term Equator?
10. What is an ellipse?
11. What are meant by the terms perihelion and aphelion?
12. If it is summer in Australia, what season is it in New Mexico?
Solution
1 question at a time:
2.5.1
We have seasons because the earth is tilted (wonky) as it makes its yearly journey around the
sun. TheEarth\'s axis is tilted at an angle of 23.5 degrees. This means that the Earth is always
\"pointing\" to one side as it goes around the Sun..
Write the product as a sum or difference. Write the product as a sum.pdf
Write the product as a sum or difference. Write the product as a sum or difference. sin x/7 cos
8x/7
Solution
sin(x/7)cos(8x/7)
sinA - sinB=2cos(A+B)/2 sin(A-B)/2
1/2(sinA -sinB)= sin(A-B)/2 cos (A+B)/2
comparing the given expression with the above formula we get
A-B/2=x/7 and A+B/2=8x/7
A-B=2x/7 and A+B= 16x/7
A=9x/7 and B = x
Therefore the required expression is
sin(9x/7)/2 -sinx/2.
Which osmotic and ionic strategies must marine teleost fishes employ.pdf
Which osmotic and ionic strategies must marine teleost fishes employ?
Solution
marine teleost fish shows the hypoosmotic regulation. they actively take ions into their blood
streams. the water is lost from the body by osmosis and sodium is uptake by diffusion. thus,
Marine-(b) Actively uptake water.
What types of social and culture trends affect REISolution1. .pdf
What types of social and culture trends affect REI?
Solution
1. Social and cultural trends affect a community’s behavior and create greater demand for
various types of products. For example, many communities are aware of stresses to the
ecosystem caused by population demands, pollution and other factors. This awareness
encourages many to engage in what has heretofore been considered only recreational activities
such as walking and cycling. These are activities that are now being taken up as a means or
relieving traffic problems or addressing air quality issues. This has increased the demand for
high quality footwear or city-friendly bicycles.
2. Social and cultural trends also affect the average retirement age and how older persons are
spending their retirement. Advances in medicine have greatly improved the quality of life for
retirees. Also, social attitudes have changed as people accept that retirement is not simply the
time when a person who has worked hard all their life now sits and waits to die. Retirees are
more active than ever before, and they enjoy more disposable income as they have invested and
saved toward retirement. This trend means that an heretofore untapped market catering to the
older person or the retiree is opened up..
Which of the following are in the order Primates (Multiple answers).pdf
Which of the following are in the order Primates? (Multiple answers)
Tarsians
Lemurs
Gorillas
Lorises
Solution
Answer: All the mentioned (Tarsians, Lemurs, Gorillas & Lorises) animals come under the order
primates.
The primates include the most familiar of the placental mammals, as the order includes Homo
sapiens. Primates also include familiar animals, such as the chimpanzees, gorillas, and monkeys,
as well as the somewhat less familiar lemurs, lorises.
Some researchers prefer an alternate classification that divides the primates into 2 suborders:
Prosimii (lemurs, lorises, and tarsiers) and Anthropoidea (monkeys, apes, and humans)..
What are the issues and benefits of employing older workers Wh.pdf
What are the issues and benefits of employing older workers?
What are the issues and benefits of employing older workers?
Solution
Employing older workers has several benefits because of following factors :
They bring experience along with them. They weere already tested in past. More confident and
mature in approach. They older workers are more organized and honest.
On the other side, having an older workers means, they might be technologically outdated. They
might have health problems. Higher wages due to experience..
What is current I1What is current I2What is current I3 14 V 1.pdf
What is current I1?
What is current I2?
What is current I3? 14 V 10 13 4 12V 14 Dr. Birdwell asks that you solve for the currents as
shown. If the actual current is in the opposite direction as shown, specify it as a negative current.
EXAMPLE
Solution
Let potential at A and C =X
let potential at D=Y
and at B=14 V
(X-14)=I4x6
0-X=I2x10
X-Y=12xI5
Y-12-X=4xI1
I4+I5=I1+I2
((X-14)/6)+((X-Y)/12)=((Y-12-X)/4)+(-X/10)
(6X/10)-(Y/3)=-2/3
Y-14=14xI3
I3=I2-I4
((Y-14)/14)=(-X/10)-((X-14)/6)
(Y/14)+(4X/15)=10/3
(6X/10)-(Y/3)=-2/3
X=1340/166
Y=1372/83
I1=((Y-12-X)/4)=-0.8855 A
I2=(-X/10)=-0.8072A
I3=((Y-14)/14)=0.1807A.
Use your thoughts about the essay, , and your own reflections on y.pdf
Use your thoughts about the essay, , and your own reflections on your current and past
relationship with Nature
1- Describe your relationship with the natural world. Give some serious thought to what Nature
means and has meant to your life. Reflect on these questions:
2 -Do you think of yourself more apart from or more a part of Nature?
3- How connected do you feel the non-human occupants (i.e., animals, plants, organisms big and
small) of Earth,?
4- To what degree do you relate your existence to theirs?
5 -When you hear the word “wilderness,” what associations do you make or feelings does it
provoke in your mind?
6 -Do you hold value in far-off, wild places even though you will likely never physically
experience them?
7 - What value does Horse Lick Creek hold for Barbara Kingsolver? Do you have a natural place
that provides a similar benefit to you? If not, do you still appreciate the value such a place could
provide and why it is important to protect such places?
-The daughter of a doctor who would accept home-grown vegetables from patients too poor to
pay in cash, Kingsolver was born in Annapolis, Maryland, and grew up in Nicholas County,
Kentucky, a rural area where most people earned a subsistence income by farming. She earned
degrees in biology from DePauw University and the University of Arizona, and has worked as a
freelance writer and author since 1985.
This is the kind of April morning no other month can touch: a world tinted in watercolor pastels
of redbud, dogtooth violet, and gentle rain. The trees are begin ning to shrug off winter; the dark,
leggy maple woods are shot through with gleam ing constellations of white dogwood blossoms.
The road winds through deep forest near Cumberland Falls, Kentucky, carrying us across the
Cumberland Plateau toward Horse Lick Creek. Camille is quiet beside me in the front seat, until
at last she sighs and says, with a child\'s poetic logic, “This reminds me of the place I always like
to think about.”
Me too, I tell her. It’s the exact truth. I grew up roaming wooded hollows like these, though they
were more hemmed-in, keeping their secrets between the wide-open cattle pastures and tobacco
fields of Nicholas County, Kentucky. My brother and sister and I would hoist cane fishing poles
over our shoulders, as if we intended to make ourselves useful, and head out to spend a Saturday
doing nothing of the kind. We haunted places we called the Crawdad Creek, the Downy Woods
(for downy woodpeckers and also for milkweed fluff), and—thrillingly, because we’d once
found big bones there—Dead Horse Draw. We caught crawfish with nothing but patience and
our hands, boiled them, with wild onions over a campfire, and ate them and declared them the
best food on earth. We collected banana-scented pawpaw fruits, and were tempted by fleshy,
fawn-colored mushrooms but left those alone. We watched birds whose names we didn’t know
build nests in trees whose names we generally did. We witnessed the unfurling of hickory an.
12-1 Group Work Preliminary and Program Development ResearchPurp.pdf
12-1: Group Work: Preliminary and Program Development Research
Purpose
To assess your ability to:
Determine the role of research in health education and health promotion.
Distinguish the four phases, based on research, in the design of health promotions programs.
Discuss some typologies of research, relating to the type of data, research styles, and research
approach.
Action Items
In this assignment, you will conduct preliminary research to identify behavioral and
environmental factors contributing to a health problem of your choice, as well as relevant
stakeholders.
This is what you will do:
Select a health problem of your choice
Select at least three of the following techniques:
Epidemiological data
Formal and informal interviews with key informants
Group sessions
Focus group interviews
Questionnaires
Rapid participatory appraisal technique
Use the techniques you have selected to collect data on behavioral and environmental factors
contributing to the health problem you chose, as well as relevant stakeholders.
Write a report that includes the health problem, techniques, and findings.
Submit your report and be prepared to share it with your classmates.
Submission Instructions
Complete and submit this assignment per your professor\'s instructions.
phc-112 health education and promotion / please i need the answer very quickl
Introduction
The focus this week is the role of research in health promotion. We will consider the four phases
of research in the design of health promotions programs. These are: preliminary research,
program development research, monitoring, and evaluation. Preliminary research focuses on
diagnosis of the existing situation, the environmental and behavioral causes of health problems
and the determinants of these causes. Program development research facilitates the development
of programs and action plans. Monitoring aims to examine the ways in which programs are
implemented, including the processes of participation and collaboration, in order to keep track of
and/or improve the program. Evaluation involves a review of the results achieved in the program
in terms of its effectiveness, efficiency and validity.
We will also consider the types and styles of research. Types of research include qualitative and
quantitative. Some common research styles discussed in your textbook include experimental,
survey, documentary-historical, and field study. During a group project this week, you will have
an opportunity to conduct preliminary research to identify behavioral and environmental factors
contributing to a health problem.
Solution
- since you did not clarified for which specific question you need answer so am starting off
according to my understanding ;
° Preliminary research to identify behavioural and environmental problems affecting our health :-
~ preliminary research demonstrates the health benefits of sustainable communities. However,
the impact of mediating and moderating factors within the built environment on health mu.
This homework consists of 8 problems. The first 7ask that .pdf
\'\'\'
This homework consists of 8 problems. The first 7
ask that you fill in a blank in the code below. The
last problem asked you to draw some conclusions from
the data generated.
You should submit this .py file with the blanks filled
in. Problem 8 should be answered as a triple quoted
comment after the code.
\'\'\'
\'\'\'
Type your name here
\'\'\'
# The Bells
# Edgar Allen Poe
theBells = \'\'\'
HEAR the sledges with the bells,
Silver bells!
What a world of merriment their melody foretells!
How they tinkle, tinkle, tinkle,
In the icy air of night!
While the stars, that oversprinkle
All the heavens, seem to twinkle
With a crystalline delight;
Keeping time, time, time,
In a sort of Runic rhyme,
To the tintinnabulation that so musically wells
From the bells, bells, bells, bells,
Bells, bells, bells—
From the jingling and the tinkling of the bells.
Hear the mellow wedding bells,
Golden bells!
What a world of happiness their harmony foretells!
Through the balmy air of night
How they ring out their delight!
From the molten-golden notes,
And all in tune,
What a liquid ditty floats
To the turtle-dove that listens, while she gloats
On the moon!
Oh, from out the sounding cells,
What a gush of euphony voluminously wells!
How it swells!
How it dwells
On the Future! how it tells
Of the rapture that impels
To the swinging and the ringing
Of the bells, bells, bells,
Of the bells, bells, bells, bells,
Bells, bells, bells—
To the rhyming and the chiming of the bells!
Hear the loud alarum bells,
Brazen bells!
What a tale of terror, now, their turbulency tells!
In the startled ear of night
How they scream out their affright!
Too much horrified to speak,
They can only shriek, shriek,
Out of tune,
In a clamorous appealing to the mercy of the fire,
In a mad expostulation with the deaf and frantic fire,
Leaping higher, higher, higher,
With a desperate desire,
And a resolute endeavor
Now—now to sit or never,
By the side of the pale-faced moon.
Oh, the bells, bells, bells!
What a tale their terror tells
Of Despair!
How they clang, and clash, and roar!
What a horror they outpour
On the bosom of the palpitating air!
Yet the ear it fully knows,
By the twanging
And the clanging,
How the danger ebbs and flows;
Yet the ear distinctly tells,
In the jangling
And the wrangling,
How the danger sinks and swells,—
By the sinking or the swelling in the anger of the bells,
Of the bells,
Of the bells, bells, bells, bells,
Bells, bells, bells—
In the clamor and the clangor of the bells!
Hear the tolling of the bells,
Iron bells!
What a world of solemn thought their monody compels!
In the silence of the night
How we shiver with affright
At the melancholy menace of their tone!
For every sound that floats
From the rust within their throats
Is a groan.
And the people—ah, the people,
They that dwell up in the steeple,
All alone,
And who tolling, tolling, tolling,
In that muffled monotone,
Feel a glory in so rolling
On the human heart a stone—
They are neither man nor woman,
They are n.
this is verilog HDL classWhat are the basic components of a module.pdf
this is verilog HDL class
What are the basic components of a module? Which components are mandatory?
Solution
1) Module Name, Port List, Port Declarations, Parameters, Declarations of wires, regs and other
variables, Data flow statements, Instantiation of lower level modules, always and initial blocks,
Tasks and functions, endmodule statement.
2) module, module name,and endmodule..
The Hox genes are responsible for determining the anterior-posterior.pdf
The Hox genes are responsible for determining the anterior-posterior identity of body regions
(segments) in the developing insect embryo. Different Hox genes are turned on (expressed) in
different segments of the body, and in this way they determine which segments become head and
which thorax, which develop legs and which antennas. One surprising thing about the Hox genes
is that they usually occur in a row on the same chromosome and in the same order as the body
regions that they control. For example, the fruit fly Drosophila Melanogaster has eight Hox
genes located on a chromosome in exactly the same order as the body regions in which they are
expressed, from head to tail. If the eight genes were thrown randomly onto the same
chromosome, what is the probability that they would line up in the same order as the segments in
which they expressed?
Solution
This is a permutations problem, where you can think of each Hox gene being \"chosen\" for a
\"slot\" in the chromosome has its own probability. Contrast this to combinations problems,
where order does NOT matter. Here\'s the formula for the number of possible permutations:
P = n! / (n-k)! where n = the pool of genes, and k = the number of genes we\'re pulling out. There
are 8 genes we\'re working with, and we\'re putting them all in a chromosome. So the number of
permutations is:
P = 8! / (8-8)! = 8! / 0! = 8!/1 = 8*7*6*5*4*3*2*1 = 40320 different permutations.
So, that\'s how many different ways these genes can be chaotically and randomly oriented. But
we want them in a very specific order - one after the next, specifying a position for each and
every gene. Normally in permutations problems, you\'d have some leeway with how many
different ways the proposed sequence can be achieved (e.g. drawing a red then blue marble,
when there are 20 red marbles and 10 blue marbles). But in our case, this number is 1, because
there\'s only one way to achieve our proposed sequence. Therefore, the probability is 1/40320, or
0.0025% (about a 400th of a percent). Notice that this has logical implications for the function of
these Hox genes; they were probably slowly built off one another in an evolutionary sequence as
opposed to randomly falling into place. An organism with a mutation in their Hox genes will
have grotesque limb abberations - an example is a Drosophila mutant with a leg coming out of its
head..
Simple java programTopic Binary File IOCreate a simple applic.pdf
Simple java program:
Topic: Binary File I/O
Create a simple application called contact list that will accept a person’s first and last name from
a dialog box, the accept a phone number from a dialog box.
Now save that information to a binary file.
You’ll only have one record.
----------------------------
Next,
Go back to your contact list application modify it such that that will accept a person’s first and
last name from a dialog box, then accept a phone number from a dialog box. It will repeat this
process until the user types in some sentinel value (terminating value) for name.
If the file doesn’t exist currently, you’ll create a new file. If it does, you’ll append to it.
Solution
public class SimpleJava {
string first,last, phone;
publicstaticvoid main(String[] args) throws Exception {
String first = System.console().readLine();
DataOutputStream out = openOutputStream(\"binary\");
while(!first.equals(\"Terminate\")) {
String last = System.console().readLine();
String phone = System.console().readLine();
out.writeUTF(first+last+phone);
String first = System.console.readline();
}
}
}.
READ BEFORE YOU START You are given a partially completed pr.pdf
// READ BEFORE YOU START: // You are given a partially completed program that creates a
list of pets with their list of checkups. // Each pet has the corresponding information: name,
breed, and a linked list of checkups. // To begin, you should trace through the given code and
understand how it works. // Please read the instructions above each required function and follow
the directions carefully. // If you modify any of the given code, the return types, or the
parameters, you risk failing the automated test cases. // // You are to assume that all input is
valid: // Valid name: String containing alphabetical letters beginning with a capital letter // Valid
breed: String containing alphabetical letters beginning with a capital letter // Valid date: String
in the following format: \"MM/DD/YYYY\" ex: \"01/01/2010\" // All input will be a valid length
and no more than the allowed amount of memory will be used // // Q1 : CLASS METHODS Part
1 : Constructor and Accessor Methods for Pet class in Pet.cpp file ( 5 points) // Q2 : CLASS
METHODS Part 2 : Class methods for Pet class in Pet.cpp file (10
points) // Q3 : Add Function in hw09.cpp file
( 5 points) // Q4 : Search Function in hw09.cpp file
(10 points) // Q5 : Remove One Function in hw09.cpp
file (15 points) // Q6 : Implement
cin / cout for the lines in main without modifying the functionality ( 5 points)
#include #include #include #include \"Container.h\" #include \"Pet.h\" #include \"Checkup.h\"
using namespace std; // forward declarations void flush(); void branching(char); void
helper(char); void add_pet(string, string); Pet* search_pet(string, string); void
remove_pet(string, string); void clean_up(Pet*); void print_all(); void remove_all(); Container*
list = NULL; // global list int main() { _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF |
_CRTDBG_LEAK_CHECK_DF); // Use to check for memory leaks in VS char ch = \'i\';
do { // Q6: Implement cin / cout for the lines below without modifying the
functionality (5 points) // (change all printf statements to cout and read the next char
using cin) printf(\"Please enter your selection\ \"); printf(\"\\ta: add a new pet
to the list\ \"); printf(\"\\tc: add a new checkup for a pet\ \"); printf(\"\\tr:
remove a pet from the list\ \"); printf(\"\\tp: print all pets on the list\ \");
printf(\"\\tq: quit\ \"); ch = getchar(); // End Q6 flush();
branching(ch); } while (ch != \'q\'); remove_all(); list = NULL; return 0; }
void flush() { int c; do c = getchar(); while (c != \'\ \' && c != EOF); } void
branching(char c) { switch (c) { case \'a\': case \'c\': case \'r\': case \'p\':
helper(c); break; case \'q\': break; default:
printf(\"\ Invalid input!\ \ \"); } } // The helper function is used to determine how much data
is needed and which function to send that data to. // It uses pointers and values that are returned
from some functions to produce the correct ouput. // There is no implementation needed here, but
you should study this function and know how it works. //.
Select oneYes, because the correlation appears to be strong.No,.pdf
Select one:
Yes, because the correlation appears to be strong.
No, because we would be trying to find a value outside of our data range.
No, because the data is not at all linear.
Yes, as long as we can calculate the regression line (using technology).
Solution
The points in the scatterplot does not show a linearity.
So, the appropriate option is,
No, because the data is not at all linear..
Prove the hyperbolic function formula sinhx(2x)=2sinhxcoshxSol.pdf
Prove the hyperbolic function formula: sinhx(2x)=2sinhxcoshx
Solution
Just use the definitions of sinh(x) and cosh(x): sinh(x) = [e^x - e^(-x)]/2, cosh(x) =
[e^x + e^(-x)]/2 So, simply expand! sinh(2x) = [e^(2x) - e^(-2x)]/2 = [e^x - e^(-x)][e^x + e^(-
x)]/2 = 2 [[e^x - e^(-x)]/2][[e^x + e^(-x)]/2] = 2sinh(x)cosh(x).
1) What data structure will you use for iterative post-order tree tr.pdf
1) What data structure will you use for iterative post-order tree traversal? Explain how.
2) Given a binary tree (not necessarily a BST), return all root-to-leaf paths. Explain two
solutions: one using stack, another one using queue.
No code, just psuedocode + Description
Solution
1) stack data structure is used for iterative post-order tree traversal.
The idea is to move down to leftmost node using left pointer. While moving down, push root and
root’s right child to stack. Once we reach leftmost node, print it if it doesn’t have a right child. If
it has a right child, then change root so that the right child is processed before.
Algorithm
2)DFS uses stack
In depth-first search the idea is to travel as deep as possible from neighbour to neighbour before
backtracking. What determines how deep is possible is that you must follow edges, and you
don\'t visit any vertex twice.
pseudocode:
BFS uses queue
BFS starting from vertex v:
create a queue Q
mark v as visited and put v into Q
while Q is non-empty
remove the head u of Q
mark and enqueue all (unvisited)
neighbours of u.
Other diseases, called collagen vascular diseases, affect the protein.pdf
Other diseases, called collagen vascular diseases, affect the protein collagen, the main
component of collagen fibers Predict the possible consequences of defective collagen fibers on
specific organs an tissues. How would the effects of a collagen vascular disease that affected
only the collagen in reticular fibers effects seen with question 2? Why?
Solution
2. ANS:
Collagen:
It is the most abundant animal protein on earth. It is present in the extra cellular spaces bones,
tendons, ligaments, gums, teeth and wall of blood vessels.
It is a homo dimer, made up of 3 identical polypeptide chains. The sequence of collagen is rich in
glycine and prolins and the sequence is Glycine – Proline – Hydroxy proline.
In the body 90% of the collagen is Type I collagen.
Type I: skin, tendon, vascular ligature, organs and bone
Type II: cartilage
Type III: reticulate
Type IV: forms basal lamina, the epithelium-secreted layer of the basement membrane.
Type V: cell surfaces, hair and placenta
Most of the collagen diseases are arisen due to the genetic defects or nutritional deficiencies.
1. Osteogenesis imperfect: It is a type I collagen autosomal disorder. In this bones and
connective tissue are affected.
2. Chondrodysplasias: It is a type II collagen disease, mainly caused by mutations. In this
skeletal bone are affected.
3. Alport syndrome: It is a genetic disorder. In this disorder kidneys and eyes are mostly affected
in during the childhood.
4. Osteoporosis: It is mainly associated with reduced levels of collagen in the skin and bones.
5. Scurvy: It is mainly associated with vitamin C. Multiple collagen tissues are affected and leads
to bleeding gums, loose of tooth, bones are fragile and internal hemorrhage.
3. ANS:
Elastic collagen disorders are mainly caused by different mutations. Among this some types are
lethal, leading to the rupture of arteries. This type of disorder occurs with the elastic collagen
accumulation and elastotic degeneration.
Ehlers Danlos syndrome is ten different types of disorder. Type III collagen mutation caused this
disorder..
Discuss the origins of mitochondria and chloroplasts. Look at them i.pdf
Discuss the origins of mitochondria and chloroplasts. Look at them in an evolutionary and ATP
(energy) sense, please.
Solution
According to endosymbiotic theory, chloroplasts in cyanobacteria possess proton motive force in
their membrane to drive protons through electron transport chain finally to drive ATP synthesis.
This is followed by evolution of mitochondria in eukaryotes because of higher level of tissue
organization during evolution of higher multicellular species i.e. The evolution has take place
during 2.5 million years ago & hominids have evolved in this period and they have similar ETC
as similar to present humans. The oxido-reduction mediating cytochrome complexes from
complex-I, II, III & IV to synthesize ATP are similar even 10000 years ago during the evolution
of low level eukaryotes to higher level of eukaryotes. Some of the changes in oxidative
phosphorylation are only due to development of \"higher level of tissue organization\" in humans
ETC has acquired due to natural selection to meet their energy needs as an evolutionary
adaptation.
Evolutionary adaptations include that sporophytes evolved gradually with increased size and
with longer life, period and gametophyte size, associated existence is drastically reduced. Plants
developed the following feature in their life cycle along with chlorophyll as food synthesizing
adaptation according to endosymbiotic theory.
The mechanism of origin of chloroplasts of eukaryotes (mainly land plants) originated by the
engulfment (the method of endosymbiosis) of an ancestral photosynthetic bacterium by an
ancestral eukaryotic cell, as a result of primitive evolutionary adaptation of land plants & aquatic
plants. There are total two hypothesis regarding the two times of evolution of chloroplasts
because engulfed bacterium by the eukaryotes was an alphaproteobacteria. This bacterium is an
autotroph can carry out photosynthesis with mutual symbiosis to eukaryote result in \"anchoring
respiration mechanism\" in the host eukaryotic cells, finally prokaryote, become a chloroplast.
Primary endosymbiosis is said to have happened meticulously \"once\" followed by secondary
endosymbiosis (the engulfment of an ancestral chloroplast-containing eukaryote by anther
eukaryotic cell) in other lineages has occurred and has further diverged. Chloroplasts are the
photosynthetic organelles of plats and they possess double membrane to maintain adequate
proton gradient generated from the splitting of water molecules in the presence of light and
further to promote ATP synthesis in the presence of ATPsynthase. This double membrane
profoundly enables maintaining stable position of other cytochrome complexes, plastoquinone
complexes of photosystem I & II between stroma and thylakoid membranes as part of
evolutionary aspect.
Endosymbiotic theory is about the evidence that supports the evolution of endosymbiotic
organelles such as chloroplasts & mitochondria from prokaryotes. There are several similarities
between th.
Match the following 1. Natural killer cells2. B cells3. Cy.pdf
Match the following:
1. Natural killer cells
2. B cells
3. Cytoxic T lymphocytes
4. Helper T cells
5. Neutrophils
A. Antibody producing cells
B. Kills target cells after being activated via MHC
C. Effector cell expressing the CD4 co receptor
D. First cell to arrive where there is inflammation
E. Lymphocyte with no T or B cell receptors
Match the following:
1. Natural killer cells
2. B cells
3. Cytoxic T lymphocytes
4. Helper T cells
5. Neutrophils
A. Antibody producing cells
B. Kills target cells after being activated via MHC
C. Effector cell expressing the CD4 co receptor
D. First cell to arrive where there is inflammation
E. Lymphocyte with no T or B cell receptors
1. Natural killer cells
2. B cells
3. Cytoxic T lymphocytes
4. Helper T cells
5. Neutrophils
A. Antibody producing cells
B. Kills target cells after being activated via MHC
C. Effector cell expressing the CD4 co receptor
D. First cell to arrive where there is inflammation
E. Lymphocyte with no T or B cell receptors
Solution
1. E
Natural killer cell are 10 percent of total lymphocyte population but they are neither B cells nor
T cells
2. 1
B-cells are antibody producing cells.
3.B
Cytotoxic t cells recognise the foreign peptide in association with Claas1 MHC protein
4. C
Helper T cells are Effector cells expressing the CD4 co receptor
5.D
Neutrophil are the First cell to arrive where there is inflammation..
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How libraries can support authors with open access requirements for UKRI funded books
Wednesday 22 May 2024, 14:00-15:00.
BÀI TẬP BỔ TRỢ TIẾNG ANH GLOBAL SUCCESS LỚP 3 - CẢ NĂM (CÓ FILE NGHE VÀ ĐÁP Á...
BÀI TẬP BỔ TRỢ TIẾNG ANH GLOBAL SUCCESS LỚP 3 - CẢ NĂM (CÓ FILE NGHE VÀ ĐÁP Á...Nguyen Thanh Tu Collection
https://app.box.com/s/hqnndn05v4q5a4k4jd597rkdbda0fniiSynthetic Fiber Construction in lab .pptx
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
The approach at University of Liverpool.pptx
How libraries can support authors with open access requirements for UKRI funded books
Wednesday 22 May 2024, 14:00-15:00.
678020731-Sumas-y-Restas-Para-Colorear.pdf
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The Roman Empire A Historical Colossus.pdf
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
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The age of fossils can sometimes be determined by radiometric dating,.pdf
- 1. The age of fossils can sometimes be determined by radiometric dating, which is based on the constant rate of decay of radioactive isotopes. The time required for half of a radioactive isotope to decay is called the half-life of that isotope. For example, the isotope carbon-14 has a half-life of 5, 730 years. Suppose it is determined that a fossilized leaf contains 12.5% of the carbon-14 that was present when the fossil formed. How old is the fossil? Express your answer numerically. Only a very small percentage of organisms actually Based on the information in the table below, rank the abundance of fossils of organisms A-E. Solution Answer: 17190 years 12.5 % C14 T1/2 of C14 = 5,730 years 12.5% ----->25%----->50%------->100% It has crossed three half lifes = 5,730 x 3 = 17190 years