Do from last question to first as much as possible, has to be turn.docxjacksnathalie
Do from last question to first as much as possible, has to be turned in before 12 midnight today, Sunday.
Pacific Time ( Los Angeles )
ㅍUnit 1 Exam Essays (40 points)
Do not delete any part of this document. (I need it all for grading purposes.)
Format: This Word document is already formatted correctly for spacing, width, and font type and font size. I’ve placed three “returns” or blank lines after each question, so you can place your cursor at the second “return” and begin to type; this will keep you within the 6-in margins and in proper format.
Do not bold or italicize your answers. Keep your answers left justified within the 6-inch text width and keep the single spacing. Do not indent your response. Points will be subtracted if I have to edit your document. It takes time to edit all your documents!
Citing your textbook: For most answers, you’ll be using your textbook, so it is only necessary to cite it once at the bottom of the document, but you must include page numbers after each answer. If you are using an older edition, you must indicate this in the citation.
For essay questions: You are graded for work completed on your own and using your own words. If you do choose to copy directly from your textbook, cite the page number and use quotation marks around copied sections. Failure to do so is plagiarism, which will result in a grade of zero. Use quotes sparingly, as they do not count toward your length requirement. I do not recommend finding your answers on the internet unless specified. It will lead to trouble. If you insist, please fully cite your references.
How much to write: You know how in-depth you must be by looking at the number of points assigned for each question. Use this generalization: 58 – 68 words per point, depending on how concise you are; so a 3-point question requires around 175-200 words to answer fully; a 5-point question requires around 290- 330 words. That’s about one-half page of text or more in this format.
Essay questions (17 points)
1. Describe the harmful and beneficial environmental effects of affluence. What are the harmful effects of poverty on the environment? In turn, what are the effects of environmental degradation on the health of the poor? (3 points)
2. What are the basic beliefs behind your environmental worldview? Are your actions consistent with your worldview? (2 points) (At the end of the semester, return to your answer to see if your worldview has changed.)
Critical Thinking Essay on Energy Flow in Food Chains
Trophic levels are governed by the interaction of bottom-up forces (light, nutrients, climate, and very importantly, the amount of producers like plants and phytoplankton). But they’re also governed by top-down forces (top keystone predators keeping lower-trophic animal numbers in balance and extremely fit). All this is very important to maintaining biodiversity and healthy ecosystems, and to prevent species extinction. This essay addresses some important scientific concep ...
Do from last question to first as much as possible, has to be turn.docxjacksnathalie
Do from last question to first as much as possible, has to be turned in before 12 midnight today, Sunday.
Pacific Time ( Los Angeles )
ㅍUnit 1 Exam Essays (40 points)
Do not delete any part of this document. (I need it all for grading purposes.)
Format: This Word document is already formatted correctly for spacing, width, and font type and font size. I’ve placed three “returns” or blank lines after each question, so you can place your cursor at the second “return” and begin to type; this will keep you within the 6-in margins and in proper format.
Do not bold or italicize your answers. Keep your answers left justified within the 6-inch text width and keep the single spacing. Do not indent your response. Points will be subtracted if I have to edit your document. It takes time to edit all your documents!
Citing your textbook: For most answers, you’ll be using your textbook, so it is only necessary to cite it once at the bottom of the document, but you must include page numbers after each answer. If you are using an older edition, you must indicate this in the citation.
For essay questions: You are graded for work completed on your own and using your own words. If you do choose to copy directly from your textbook, cite the page number and use quotation marks around copied sections. Failure to do so is plagiarism, which will result in a grade of zero. Use quotes sparingly, as they do not count toward your length requirement. I do not recommend finding your answers on the internet unless specified. It will lead to trouble. If you insist, please fully cite your references.
How much to write: You know how in-depth you must be by looking at the number of points assigned for each question. Use this generalization: 58 – 68 words per point, depending on how concise you are; so a 3-point question requires around 175-200 words to answer fully; a 5-point question requires around 290- 330 words. That’s about one-half page of text or more in this format.
Essay questions (17 points)
1. Describe the harmful and beneficial environmental effects of affluence. What are the harmful effects of poverty on the environment? In turn, what are the effects of environmental degradation on the health of the poor? (3 points)
2. What are the basic beliefs behind your environmental worldview? Are your actions consistent with your worldview? (2 points) (At the end of the semester, return to your answer to see if your worldview has changed.)
Critical Thinking Essay on Energy Flow in Food Chains
Trophic levels are governed by the interaction of bottom-up forces (light, nutrients, climate, and very importantly, the amount of producers like plants and phytoplankton). But they’re also governed by top-down forces (top keystone predators keeping lower-trophic animal numbers in balance and extremely fit). All this is very important to maintaining biodiversity and healthy ecosystems, and to prevent species extinction. This essay addresses some important scientific concep ...
Multi-source connectivity as the driver of solar wind variability in the heli...Sérgio Sacani
The ambient solar wind that flls the heliosphere originates from multiple
sources in the solar corona and is highly structured. It is often described
as high-speed, relatively homogeneous, plasma streams from coronal
holes and slow-speed, highly variable, streams whose source regions are
under debate. A key goal of ESA/NASA’s Solar Orbiter mission is to identify
solar wind sources and understand what drives the complexity seen in the
heliosphere. By combining magnetic feld modelling and spectroscopic
techniques with high-resolution observations and measurements, we show
that the solar wind variability detected in situ by Solar Orbiter in March
2022 is driven by spatio-temporal changes in the magnetic connectivity to
multiple sources in the solar atmosphere. The magnetic feld footpoints
connected to the spacecraft moved from the boundaries of a coronal hole
to one active region (12961) and then across to another region (12957). This
is refected in the in situ measurements, which show the transition from fast
to highly Alfvénic then to slow solar wind that is disrupted by the arrival of
a coronal mass ejection. Our results describe solar wind variability at 0.5 au
but are applicable to near-Earth observatories.
This presentation explores a brief idea about the structural and functional attributes of nucleotides, the structure and function of genetic materials along with the impact of UV rays and pH upon them.
Introduction:
RNA interference (RNAi) or Post-Transcriptional Gene Silencing (PTGS) is an important biological process for modulating eukaryotic gene expression.
It is highly conserved process of posttranscriptional gene silencing by which double stranded RNA (dsRNA) causes sequence-specific degradation of mRNA sequences.
dsRNA-induced gene silencing (RNAi) is reported in a wide range of eukaryotes ranging from worms, insects, mammals and plants.
This process mediates resistance to both endogenous parasitic and exogenous pathogenic nucleic acids, and regulates the expression of protein-coding genes.
What are small ncRNAs?
micro RNA (miRNA)
short interfering RNA (siRNA)
Properties of small non-coding RNA:
Involved in silencing mRNA transcripts.
Called “small” because they are usually only about 21-24 nucleotides long.
Synthesized by first cutting up longer precursor sequences (like the 61nt one that Lee discovered).
Silence an mRNA by base pairing with some sequence on the mRNA.
Discovery of siRNA?
The first small RNA:
In 1993 Rosalind Lee (Victor Ambros lab) was studying a non- coding gene in C. elegans, lin-4, that was involved in silencing of another gene, lin-14, at the appropriate time in the
development of the worm C. elegans.
Two small transcripts of lin-4 (22nt and 61nt) were found to be complementary to a sequence in the 3' UTR of lin-14.
Because lin-4 encoded no protein, she deduced that it must be these transcripts that are causing the silencing by RNA-RNA interactions.
Types of RNAi ( non coding RNA)
MiRNA
Length (23-25 nt)
Trans acting
Binds with target MRNA in mismatch
Translation inhibition
Si RNA
Length 21 nt.
Cis acting
Bind with target Mrna in perfect complementary sequence
Piwi-RNA
Length ; 25 to 36 nt.
Expressed in Germ Cells
Regulates trnasposomes activity
MECHANISM OF RNAI:
First the double-stranded RNA teams up with a protein complex named Dicer, which cuts the long RNA into short pieces.
Then another protein complex called RISC (RNA-induced silencing complex) discards one of the two RNA strands.
The RISC-docked, single-stranded RNA then pairs with the homologous mRNA and destroys it.
THE RISC COMPLEX:
RISC is large(>500kD) RNA multi- protein Binding complex which triggers MRNA degradation in response to MRNA
Unwinding of double stranded Si RNA by ATP independent Helicase
Active component of RISC is Ago proteins( ENDONUCLEASE) which cleave target MRNA.
DICER: endonuclease (RNase Family III)
Argonaute: Central Component of the RNA-Induced Silencing Complex (RISC)
One strand of the dsRNA produced by Dicer is retained in the RISC complex in association with Argonaute
ARGONAUTE PROTEIN :
1.PAZ(PIWI/Argonaute/ Zwille)- Recognition of target MRNA
2.PIWI (p-element induced wimpy Testis)- breaks Phosphodiester bond of mRNA.)RNAse H activity.
MiRNA:
The Double-stranded RNAs are naturally produced in eukaryotic cells during development, and they have a key role in regulating gene expression .
What is greenhouse gasses and how many gasses are there to affect the Earth.moosaasad1975
What are greenhouse gasses how they affect the earth and its environment what is the future of the environment and earth how the weather and the climate effects.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.Sérgio Sacani
The return of a sample of near-surface atmosphere from Mars would facilitate answers to several first-order science questions surrounding the formation and evolution of the planet. One of the important aspects of terrestrial planet formation in general is the role that primary atmospheres played in influencing the chemistry and structure of the planets and their antecedents. Studies of the martian atmosphere can be used to investigate the role of a primary atmosphere in its history. Atmosphere samples would also inform our understanding of the near-surface chemistry of the planet, and ultimately the prospects for life. High-precision isotopic analyses of constituent gases are needed to address these questions, requiring that the analyses are made on returned samples rather than in situ.
Richard's entangled aventures in wonderlandRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
Observation of Io’s Resurfacing via Plume Deposition Using Ground-based Adapt...Sérgio Sacani
Since volcanic activity was first discovered on Io from Voyager images in 1979, changes
on Io’s surface have been monitored from both spacecraft and ground-based telescopes.
Here, we present the highest spatial resolution images of Io ever obtained from a groundbased telescope. These images, acquired by the SHARK-VIS instrument on the Large
Binocular Telescope, show evidence of a major resurfacing event on Io’s trailing hemisphere. When compared to the most recent spacecraft images, the SHARK-VIS images
show that a plume deposit from a powerful eruption at Pillan Patera has covered part
of the long-lived Pele plume deposit. Although this type of resurfacing event may be common on Io, few have been detected due to the rarity of spacecraft visits and the previously low spatial resolution available from Earth-based telescopes. The SHARK-VIS instrument ushers in a new era of high resolution imaging of Io’s surface using adaptive
optics at visible wavelengths.
Richard's aventures in two entangled wonderlandsRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
This pdf is about the Schizophrenia.
For more details visit on YouTube; @SELF-EXPLANATORY;
https://www.youtube.com/channel/UCAiarMZDNhe1A3Rnpr_WkzA/videos
Thanks...!
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...University of Maribor
Slides from:
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Track: Artificial Intelligence
https://www.etran.rs/2024/en/home-english/
3. 3
How Do You Make Fireworks of Different Colors?
Two thousand years ago, a cook mixed three ingredients very
common in any kitchen: potassium nitrate (food preservative),
sulphur and charcoal. Mixed and and heated, they go off exploding
on a huge bang. This is basically gunpowder.
If this mixture is put on a cane, pressure builds up giving rise to a
bigger explosion. Originally, potassium nitrate was used.
Potassium cations are responsible of a white color. If different salts
are used instead, with different metals as cations, you get the
different colors. For example, strontium salts give red colors. Iron
compounds give gold-colored fireworks. Also, sodium gives yellow,
barium gives green and copper gives blue.
4.
5. Why do you need to
know the nutritional
information provided
on the packaged food
labels?
6. What do you think
a chemist do when
he discovered a
new compound?
6
9. % by mass= mass of element
mass of compound
x 100
10. Example: What are the percentage
composition of sodium and chlorine in
Sodium Chloride?
10
% Na= mass of Na
mass of NaCl
x 100
First,find the molar mass:
Mass of Na- 23 g/mol
Mass of Chlorine- 35 g/mol
_________________________
58 g/mol
11. 11
% Na= 23 g/mol
58 g/mol
=0.3965
x 100
x 100
=39.65 %
or 40 %
% Cl= 35 g/mol
58 g/mol
=
% Na= 23 g/mol
58 g/mol
=0.3965
x 100 100
x
0.603 % or
60 %
12. For both plants and humans, glucose is like
the fuel for a machine. Plants produce
sugar in their leaves in the form of
glucose C6H12O6
Determine the percentage
composition of glucose C6H12O6
13. .
The experiment conducted by
Henry Mosely on the
radioactive emissions of
elements, found a way of
counting the number of protons.
atomic number-equal to the number of
protons of an element
-expressed as Z
-identifies an element,also equal to # of
electron
16. Atoms, in their
most stable
state are
neutral with an
equal number
of protons
and electrons.
Something to think
about
So, let us say an
atom has 5
electrons, how
many protons
does this atom
have?
17. One more time:
How about if the atom has 64
protons, how many electrons
does this atom have?
18. One more time:
# of protons=
# of electrons=
# of neutrons=
Atomic #=
Mass number # =
20. Enumeration
1-9 List the 3
subparticles of an atom
with their charges and
location, (in or outside
the nucleus)
10. If a neutral atom
has 4 electrons, how
many protons are there?
21. True or False
11. A neutral atom has a negative one
charge.
12. In a neutral atom, if there are 6
electrons there are also 6 protons.
13. A table, a chair, a sweater contain
charges.
14. Electrons are transferred when a
material is rubbed with another material
and this is called static electricity.
15. When a negative charged object is
put near to a positive charged object, the
two objects will repel.
21
26. Let’s review some
concepts
Yellow
Is the color of gold, butter
and ripe lemons. In the
spectrum of visible light,
yellow is found between
green and orange.
Blue
Is the colour of the clear
sky and the deep sea. It is
located between violet
and green on the optical
spectrum.
Red
Is the color of blood, and
because of this it has
historically been
associated with sacrifice,
danger and courage.
26
Yellow
Is the color of gold, butter
and ripe lemons. In the
spectrum of visible light,
yellow is found between
green and orange.
Blue
Is the colour of the clear
sky and the deep sea. It is
located between violet
and green on the optical
spectrum.
Red
Is the color of blood, and
because of this it has
historically been
associated with sacrifice,
danger and courage.
33. Credits
Special thanks to all the people who made and
released these awesome resources for free:
× Presentation template by SlidesCarnival
× Photographs by Unsplash
× Watercolor textures by GraphicBurguer
33
34. Presentation
design
This presentation uses the following typographies and colors:
× Titles: Lato Thin
× Body copy: Lato Light
You can download the fonts on this page:
http://www.latofonts.com/lato-free-fonts/
You don’t need to keep this slide in your presentation. It’s only here to serve
you as a design guide if you need to create new slides or download the fonts to
edit the presentation in PowerPoint®
34
35. SlidesCarnival icons are editable shapes.
This means that you can:
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● Change fill color and opacity.
Isn’t that nice? :)
Examples:
36. Now you can use any emoji as an icon!
And of course it resizes without losing quality and you can change the color.
How? Follow Google instructions
https://twitter.com/googledocs/status/730087240156643328
✋👆👉👍👤👦👧👨👩👪💃🏃💑❤😂
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🎨🏈🏰🌏🔌🔑 and many more...
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36
Editor's Notes
As a chemist,u must know what elements are present in a compound and in what percentage.