There are three possible fates for immature B cells with IgM that re.pdf
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A self-reactive B cell with IgM that recognizes self-antigens can become anergic under certain circumstances. When a self-reactive cell is activated by encountering its specific self-antigen, it undergoes rewiring of its cellular processes and becomes non-responsive or anergic. This process of inducing anergy in self-reactive cells is helpful for conditions where it is necessary to reduce a patient's immunity, such as organ transplantation.
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Match the type of data with the correct location(B) stackSelect On.pdf
Match the type of data with the correct location
(B) stackSelect OneMatch WithUninitialized global variables(A) data sectionInitialized global
variables
(B) stackprogram instructions(C) BSSautomatic local variables(D) heappersistent local or non-
local variables(E) text section(F) memory mapped I/O region
Solution
data section - persistent local or non-local variables
stack - automatic local variables
BSS - Uninitialized global variables
text section - Initialized global variables
memory mapped I/O region - program instructions.
In January 2017, Crane Company, a newly formed company, issued 9500 .pdf
In January 2017, Crane Company, a newly formed company, issued 9500 shares of its $8 par
common stock for $13 per share. On July 1, 2017, Crane Company reacquired 950 shares of its
outstanding stock for $10 per share. The acquisition of these treasury shares
a. increased total stockholders\' equity.
b. decreased the number of issued shares.
c. decreased total stockholders\' equity.
d. did not change total stockholders\' equity.
Solution
The right answer is option (C) decreased total stockholders\' equity.
Justification:
Statement of stockholders equity at the time of Formation of company
Particulars
Per Share
Number of Shares
Total Amount ($)
Paid up Capital
8
9500
76,000.00
Paid in capital in excess of par
5
9500
47,500.00
Total Share holders equity
13
9500
1,23,500.00
Statement of stockholders equity after requiring treasury shares
Particulars
Per Share
Number of Shares
Total Amount ($)
Paid up Capital
8
8550
(9500-950)
68,400.00
Paid in capital in excess of par
5
8550
42,750.00
Share holders equity before Treasury Shares
13
8550
111,150.00
Treasury Shares
10
950
9,500.00
Total Share holders equity
9500
(8550+950)
1,20,650.00
(9500+111,150)
Statement of stockholders equity at the time of Formation of company
Particulars
Per Share
Number of Shares
Total Amount ($)
Paid up Capital
8
9500
76,000.00
Paid in capital in excess of par
5
9500
47,500.00
Total Share holders equity
13
9500
1,23,500.00.
If the architecture describes the design by specifying gates, flip-fl.pdf
If the architecture describes the design by specifying gates, flip-flops, other hardware element,
and their interconnections, it is called a behavioral description. structural description.
combinational description. hardware description. The ENTITY in VHDL is used to hide the
interface. show the inner working the design. define the architecture. define the interface.
Solution
6.f
Structural Discription
6.g
The Entity in VHDL is used for Define interface
ie: entity is used to declare the i/o ports..
I need help for my next project due next tuesday can you help me in .pdf
I need help for my next project due next tuesday can you help me in writing this program and
can you make it a simple program easy as possible.
note here are the parameters of the program in bold:
Design a class named Employee. The class should keep the following information in fields:
• Employee name
• Employee number in the format XXX–L, where each X is a digit within the range 0–9
and the L is a letter within the range A–M.
• Hire date
Write one or more constructors and the appropriate accessor and mutator methods for the class.
Next, write a class named Production Worker that extends the Employee class. The
Production Worker class should have fields to hold the following information:
• Shift (an integer)
• Hourly pay rate (a double)
The workday is divided into two shifts: day and night. The shift field will be an integer value
representing the shift that the employee works. The day shift is shift 1 and the night shift is
shift 2. Write one or more constructors and the appropriate accessor and mutator methods for
the class. Demonstrate the classes by writing a program that uses a Production Worker object.
Each class needs a no-arg constructor and a constructor that initializes all fields with data (The
Production Worker class constructor should receive data for the Employee class fields as well)
Create a method within the Employee and Production Worker classes called display Info.
(display Info accepts no arguments and returns void) To display the data for each constructor, the
demonstration class will call the subclass display Info method and it will call the superclass
display Info method. User input is not required for the demonstration class.
Solution
Employe class:
public class Employee
{
public String name;
public String number;
public String hireDate;
public Employee(String n, String num, String hd)
{
name = n;
number = num;
hireDate = hd;
}
public String getName() {
return name;
}
public String getNumber()
{
return number;
}
public String getHireDate()
{
return hireDate;
}
private boolean isValidEmpNum(String e)
{
boolean isValid = true;
int i = 0;
if (e.length() != 5)
{
isValid = false;
}
while (isValid && i < 3)
{
if (!Character.isDigit(e.charAt(i)))
{
isValid = false;
}
i++;
}
while (isValid && i < 4)
{
if (e.charAt(i) != \'-\')
{
isValid = false;
}
i++;
}
while (isValid && i < 5)
{
if (!Character.isLetter(e.charAt(i)))
{
isValid = false;
}
i++;
}
while (isValid && i < 6)
{
if (e.charAt(4) <= \'A\' || e.charAt(4) >= \'M\')
{
isValid = false;
}
i++;
}
return isValid;
}
@Override
public String toString()
{
String str = \"Name: \" + name + \"\ Employee Number: \";
if (\"\".equals(number))
{
str += \"Invalid Employee Number\";
}
else {
str += number;
}
str += (\"\ Hire Date: \" + hireDate);
return str;
}
}
productionworker class:
import java.text.DecimalFormat;
public class ProductionWorker extends Employee
{
public static int dayShift = 1;
public static int nightShift = 2;
private int shift;
private double payRate;
public String ge.
how the Central Bank impacts the overall economySolutionthe ce.pdf
how the Central Bank impacts the overall economy
Solution
the central bank employs various techniques to create balance in the economy-expansionary and
contractionary. Pursuing Open Market Operations, setting Reserve Ratios, change the bank rate
are some of the techniques. Regulation of consumer credit or Direct Action & Rationing of credit
indirectly impact the economy. Increasing interest or decreasing interest rate through above
techniques influence inflation and directly impact the economy..
How do humans localize sound In other words, how does someone with .pdf
How do humans localize sound? In other words, how does someone with their eyes closed know
where sound is coming from?
Solution
Localization of sound refers to the ability of a person to identify the location or the origin of
sound, its direction and the approximate distance from which it is comming. In order to
investigate this complex ability, mammalian auditory system has been studied in detail.
Sound localization ability involves psychological and physiological acoustics as well as person\'s
artificial intelligence. It includes the interpretation of cues from the environment regarding the
information recognition, feeling of living in 3D environment, spectral information, sense of
timing and correlation analysis.
These cues also include changes which occur with direction of sound and the time its arrival at
the ears. Cues of differences between the sound reception of two ears (binaural) and sensing
pressure difference reception of the two ears, is also used as information. The sound travels
between ears and eardrums are activated at its outer and inner surface. This helps the animal
locate the source of the sound. The ear which faces closer to the sound source vibrates with a
larger amplitude, compared to the eardrum facing away.
Humans have very good ability to determine the source of sounds and they use the \'pressure
reception\' as a major cue. The resonance effect in external auditory canal causes the sound
signal amplification. In humans, only the outer surface of the ear is exposed to sound. Eustachian
tube equalizes the pressure, and does not allow the sound to enter the middle ear. Hence the outer
ear serves dual function of localizing the source of sound and amplifying the acoustic signals.
Inner ear is protected by middle ear. Cochlea, which is the main part of the inner ear convert the
acoustic signals to nerve stimulation..
Explain the ramifications of the changes, and demonstrate that they w.pdf
Explain the ramifications of the changes, and demonstrate that they were truly transformative
and not simply incremental improvements.
Solution
They are truely tranformative as a change does not happen out of nowhere. It announces itself
even when the existing system exists. Therefore, transformation is theoretically further
elaborated and it is found that a transformational change to a new system already starts at a time
when the existing system still fully operates. Thus they cannot be improvements..
Explain and provide examples of how species-specific and environment.pdf
Explain and provide examples of how species-specific and environmental catastrophes,
geological events, and the sudden influx/depletion of abiotic resources or increased
human activities can affect species distribution and abundance.
Solution
SPECIES-SPECIFIC:Being a substance that is limited in action of aparticular species,or
especially a species from which it is derived.
examples of species- specific: critter groups.
ENVIRONMENTAL CATASTROPHES:ENVIRONMENTAL CATASTROPHES is a
disaster,an event resulting in extreme loss and mis fortune.
examples of environmental catastrophes:japan earthquake.
GEOLOGICAL EVENTS:An event one or more geologicalprocesses act to modify geological
entites.
examples of geological events : volcanoes,tsunamis.
SUDDEN INFLUX /DEPLETION OF ABIOTIC RESOURCES OR INCREASED HUMAN
ACTIVITES CAN AFFECT SPECIES DISTRIBUTION AND ABUDANCE:Depletion of
abiotic resources is distruped impact cateogary in the life cycle assesment. it is a dilution
problem,it means taking the reserves in the environment and economy in to an account in the
parameter and using leakage from the economy instead of extraction rate,as a dilution paameter,
and increased human activites can affect species and distribution and abudnce.
example: non renewable resources..
Recommended
Match the type of data with the correct location(B) stackSelect On.pdf
Match the type of data with the correct location
(B) stackSelect OneMatch WithUninitialized global variables(A) data sectionInitialized global
variables
(B) stackprogram instructions(C) BSSautomatic local variables(D) heappersistent local or non-
local variables(E) text section(F) memory mapped I/O region
Solution
data section - persistent local or non-local variables
stack - automatic local variables
BSS - Uninitialized global variables
text section - Initialized global variables
memory mapped I/O region - program instructions.
In January 2017, Crane Company, a newly formed company, issued 9500 .pdf
In January 2017, Crane Company, a newly formed company, issued 9500 shares of its $8 par
common stock for $13 per share. On July 1, 2017, Crane Company reacquired 950 shares of its
outstanding stock for $10 per share. The acquisition of these treasury shares
a. increased total stockholders\' equity.
b. decreased the number of issued shares.
c. decreased total stockholders\' equity.
d. did not change total stockholders\' equity.
Solution
The right answer is option (C) decreased total stockholders\' equity.
Justification:
Statement of stockholders equity at the time of Formation of company
Particulars
Per Share
Number of Shares
Total Amount ($)
Paid up Capital
8
9500
76,000.00
Paid in capital in excess of par
5
9500
47,500.00
Total Share holders equity
13
9500
1,23,500.00
Statement of stockholders equity after requiring treasury shares
Particulars
Per Share
Number of Shares
Total Amount ($)
Paid up Capital
8
8550
(9500-950)
68,400.00
Paid in capital in excess of par
5
8550
42,750.00
Share holders equity before Treasury Shares
13
8550
111,150.00
Treasury Shares
10
950
9,500.00
Total Share holders equity
9500
(8550+950)
1,20,650.00
(9500+111,150)
Statement of stockholders equity at the time of Formation of company
Particulars
Per Share
Number of Shares
Total Amount ($)
Paid up Capital
8
9500
76,000.00
Paid in capital in excess of par
5
9500
47,500.00
Total Share holders equity
13
9500
1,23,500.00.
If the architecture describes the design by specifying gates, flip-fl.pdf
If the architecture describes the design by specifying gates, flip-flops, other hardware element,
and their interconnections, it is called a behavioral description. structural description.
combinational description. hardware description. The ENTITY in VHDL is used to hide the
interface. show the inner working the design. define the architecture. define the interface.
Solution
6.f
Structural Discription
6.g
The Entity in VHDL is used for Define interface
ie: entity is used to declare the i/o ports..
I need help for my next project due next tuesday can you help me in .pdf
I need help for my next project due next tuesday can you help me in writing this program and
can you make it a simple program easy as possible.
note here are the parameters of the program in bold:
Design a class named Employee. The class should keep the following information in fields:
• Employee name
• Employee number in the format XXX–L, where each X is a digit within the range 0–9
and the L is a letter within the range A–M.
• Hire date
Write one or more constructors and the appropriate accessor and mutator methods for the class.
Next, write a class named Production Worker that extends the Employee class. The
Production Worker class should have fields to hold the following information:
• Shift (an integer)
• Hourly pay rate (a double)
The workday is divided into two shifts: day and night. The shift field will be an integer value
representing the shift that the employee works. The day shift is shift 1 and the night shift is
shift 2. Write one or more constructors and the appropriate accessor and mutator methods for
the class. Demonstrate the classes by writing a program that uses a Production Worker object.
Each class needs a no-arg constructor and a constructor that initializes all fields with data (The
Production Worker class constructor should receive data for the Employee class fields as well)
Create a method within the Employee and Production Worker classes called display Info.
(display Info accepts no arguments and returns void) To display the data for each constructor, the
demonstration class will call the subclass display Info method and it will call the superclass
display Info method. User input is not required for the demonstration class.
Solution
Employe class:
public class Employee
{
public String name;
public String number;
public String hireDate;
public Employee(String n, String num, String hd)
{
name = n;
number = num;
hireDate = hd;
}
public String getName() {
return name;
}
public String getNumber()
{
return number;
}
public String getHireDate()
{
return hireDate;
}
private boolean isValidEmpNum(String e)
{
boolean isValid = true;
int i = 0;
if (e.length() != 5)
{
isValid = false;
}
while (isValid && i < 3)
{
if (!Character.isDigit(e.charAt(i)))
{
isValid = false;
}
i++;
}
while (isValid && i < 4)
{
if (e.charAt(i) != \'-\')
{
isValid = false;
}
i++;
}
while (isValid && i < 5)
{
if (!Character.isLetter(e.charAt(i)))
{
isValid = false;
}
i++;
}
while (isValid && i < 6)
{
if (e.charAt(4) <= \'A\' || e.charAt(4) >= \'M\')
{
isValid = false;
}
i++;
}
return isValid;
}
@Override
public String toString()
{
String str = \"Name: \" + name + \"\ Employee Number: \";
if (\"\".equals(number))
{
str += \"Invalid Employee Number\";
}
else {
str += number;
}
str += (\"\ Hire Date: \" + hireDate);
return str;
}
}
productionworker class:
import java.text.DecimalFormat;
public class ProductionWorker extends Employee
{
public static int dayShift = 1;
public static int nightShift = 2;
private int shift;
private double payRate;
public String ge.
how the Central Bank impacts the overall economySolutionthe ce.pdf
how the Central Bank impacts the overall economy
Solution
the central bank employs various techniques to create balance in the economy-expansionary and
contractionary. Pursuing Open Market Operations, setting Reserve Ratios, change the bank rate
are some of the techniques. Regulation of consumer credit or Direct Action & Rationing of credit
indirectly impact the economy. Increasing interest or decreasing interest rate through above
techniques influence inflation and directly impact the economy..
How do humans localize sound In other words, how does someone with .pdf
How do humans localize sound? In other words, how does someone with their eyes closed know
where sound is coming from?
Solution
Localization of sound refers to the ability of a person to identify the location or the origin of
sound, its direction and the approximate distance from which it is comming. In order to
investigate this complex ability, mammalian auditory system has been studied in detail.
Sound localization ability involves psychological and physiological acoustics as well as person\'s
artificial intelligence. It includes the interpretation of cues from the environment regarding the
information recognition, feeling of living in 3D environment, spectral information, sense of
timing and correlation analysis.
These cues also include changes which occur with direction of sound and the time its arrival at
the ears. Cues of differences between the sound reception of two ears (binaural) and sensing
pressure difference reception of the two ears, is also used as information. The sound travels
between ears and eardrums are activated at its outer and inner surface. This helps the animal
locate the source of the sound. The ear which faces closer to the sound source vibrates with a
larger amplitude, compared to the eardrum facing away.
Humans have very good ability to determine the source of sounds and they use the \'pressure
reception\' as a major cue. The resonance effect in external auditory canal causes the sound
signal amplification. In humans, only the outer surface of the ear is exposed to sound. Eustachian
tube equalizes the pressure, and does not allow the sound to enter the middle ear. Hence the outer
ear serves dual function of localizing the source of sound and amplifying the acoustic signals.
Inner ear is protected by middle ear. Cochlea, which is the main part of the inner ear convert the
acoustic signals to nerve stimulation..
Explain the ramifications of the changes, and demonstrate that they w.pdf
Explain the ramifications of the changes, and demonstrate that they were truly transformative
and not simply incremental improvements.
Solution
They are truely tranformative as a change does not happen out of nowhere. It announces itself
even when the existing system exists. Therefore, transformation is theoretically further
elaborated and it is found that a transformational change to a new system already starts at a time
when the existing system still fully operates. Thus they cannot be improvements..
Explain and provide examples of how species-specific and environment.pdf
Explain and provide examples of how species-specific and environmental catastrophes,
geological events, and the sudden influx/depletion of abiotic resources or increased
human activities can affect species distribution and abundance.
Solution
SPECIES-SPECIFIC:Being a substance that is limited in action of aparticular species,or
especially a species from which it is derived.
examples of species- specific: critter groups.
ENVIRONMENTAL CATASTROPHES:ENVIRONMENTAL CATASTROPHES is a
disaster,an event resulting in extreme loss and mis fortune.
examples of environmental catastrophes:japan earthquake.
GEOLOGICAL EVENTS:An event one or more geologicalprocesses act to modify geological
entites.
examples of geological events : volcanoes,tsunamis.
SUDDEN INFLUX /DEPLETION OF ABIOTIC RESOURCES OR INCREASED HUMAN
ACTIVITES CAN AFFECT SPECIES DISTRIBUTION AND ABUDANCE:Depletion of
abiotic resources is distruped impact cateogary in the life cycle assesment. it is a dilution
problem,it means taking the reserves in the environment and economy in to an account in the
parameter and using leakage from the economy instead of extraction rate,as a dilution paameter,
and increased human activites can affect species and distribution and abudnce.
example: non renewable resources..
Each of the following is a function of membranes except sites for spe.pdf
Each of the following is a function of membranes except sites for specific biochemical functions
regulation of transport. cell - cell communication. information storage. defining cell and
organelle boundaries.
Solution
Biological membranes serve as defining boundaries of the cells and membrane bound cell
organelles. They also serve in transport of selected substaces through them and thereby maintain
the cell\'s interior. They serve as site for complex reactions and are central to cell cell
communication. However, storage of information is the function of nucelus which houses the
genetic material. Correct answer is D..
Develop a detailed Compliance budget for fiscal year 2015-16 for a 1.pdf
Develop a detailed Compliance budget for fiscal year 2015-16 for a 100-bed skilled nursing
facility with 50 employees and a program budget amount of $200,000.
Solution
A detailed copliance is done by looking into some things. in which that hopital company can
adobe or not.
1.) see that, the department has large amount of funded beds that are not used.
2.) hospital should see for operation the level staff should be needed to operate hospital facilities.
3.) the budgeting methodology used by the department creates incentives for it to operate
effeciently. and etc., still many things have to be taken under control..
Devlin Inc produces snack foods such as bagel chips. The company had .pdf
Devlin Inc produces snack foods such as bagel chips. The company had the following
condensed trial balance as of April 3, 2011, for the nine months ended April 3, 2011. (S in
millions):
Solution
Income statement :
Balance sheet :Revenue22696Less: ExpensesCost of sales(8215)Selling,general and
administrative expenses(5394)Other expenses(1245)(14854)Net Income (Loss)7842.
Choose the one that the correct sequence (going from Mart to finish) .pdf
Choose the one that the correct sequence (going from Mart to finish) for the lymphatic system
duct, capillary, vessel, trunk, duct, vessel. capillary vessel, trunk capillary, duct capillary, vowel,
trunk, duct There is congestion in the flow when the lymph enters the lymphatic node to increase
the component by the lymphocytes True False John is considers a high-risk individual as his
immune system has many delicacies Thus of he was to be infected by a serious disease, one
would go about using which type of immunity? passive, nature scoured passive, scoured nature
Active, artificially acquired
Solution
Please find the answers below and explanations in parentheses:
Answer 36: Choice 4 (A small capillary collects the lymph from the interstitial tissue bed. A
number of these small capillaries combine to form a small vessel. A few vessels combine to
drain all the lymph fluid into a large trunk which transports the lymph across the body)
Answer 37: True (The lymph fluid is comprised of large amounts of lymphocytes which help in
fighting the infections. The lymphocytes are primarily concentrated at the lymph nodes. When
the lymph arrives at these lymph nodes, the lymphocytes accumulate to analyse the lymphatic
fluid for any infeciton of pathogens. This creates a temporary resistance to flow and causes slight
congestion of fluid across the lymphatic vessels which is cleared by some time)
Answer 38: Choice D (Since John is at risk of immune response and low on immunity, it clearly
suggests that he his immune response depends upon artificially acquired boost due to
immunization and thus result in active immune response against multiple infections. Had he not
had been pre-immunized, the primary source of immunity might had been his natural defence
against infections.).
Connecting the Concepts Structural Adaptations in Land Plants What .pdf
Connecting the Concepts: Structural Adaptations in Land Plants What structural adaptations
enable plants to live on land? Part A Drag the terms to their correct locations in this concept
map.
Solution
a. Vascular system
b. mosses- laks vascular system xylem and phloem.
c. lignin- natural polymer and not made of carbohydrates.
d. Ferns- have vascular tissues to transpot food and water.
e. phloem- distributes sugar and nutrients prepared in the shoot.
f. xylem- distributes water and minerals taken up by roots.
g. water and minerals.
Business statistics1.How is the trend eliminated in the ratio-to-m.pdf
Business statistics
1.How is the trend eliminated in the ratio-to-moving average procedure?
2. Why take the seasonality out of a time series?
3. Does a index of 103 indicate above or below average?
4. What is autocorrealtion?
5. Be able to read and interpret a short time series using an index.
6. What is done with seasonal indexes?
7. Be able to read and interpret a short time series using an index.
8. Hypothesis tests for nominal and ordinal merasurement are?
9. Chi-square test?
10. Sum of differences in expected and observed frequencies
Solution
1)It is harder to see a trend in a noisy time series thats why it is eliminated in the ratio-to-moving
average procedure.
2)Unlike the trend and cyclical components, seasonal components, theoretically, happen with
similar magnitude during the same time period each year. The seasonal components of a series
are sometimes considered to be uninteresting and to hinder the interpretation of a series.
Removing the seasonal component directs focus on other components
4)Autocorrelation is the correlation between the elements of a series and others from the same
series separated from them by a given interval.
6)A seasonal index is used when forecasting products with seasonal demand patterns.
9)A chi-squared test, also referred to as.
At the end of Meiosis I for this organism, what is the policy number .pdf
At the end of Meiosis I for this organism, what is the policy number (n, 2n, 3n, 4n)?
Solution
Answer: n (haploid)
Considering that the organism is diploid (2n) and undergoes meiosis to form the gametes, one
diploid cell undergoes division to reduce the chromosome number to half. So, at the end of
meiosis 1, the two cells so produced are haploid (n) with a DNA content of 2C..
Assignment Write a multithreaded Java program that uses either semap.pdf
Assignment: Write a multithreaded Java program that uses either semaphores or Java
synchronization to control access to a one-lane bridge. One thread should simulate eastbound
vehicles and another thread should simulate westbound vehicles. The vehicles do not have a
reverse gear, so the bridge would become deadlocked if both an eastbound vehicle and a
westbound vehicle were allowed to drive onto the bridge at the same time. Therefore, mutual
exclusion must be enforced. Your solution should avoid both deadlock and starvation (e.g. the
bridge being monopolized by westbound vehicles while the eastbound vehicles never get to
cross). Vehicles traveling in either direction should wait (sleep) for some amount of time, then
attempt to cross. Once a vehicle is on the bridge, it should sleep for some amount of time to
simulate how long it takes to drive across the bridge. Output a message when each vehicle drives
onto the bridge and another message when that vehicle has completed the crossing. Simulate
several vehicles traveling in each direction.
Solution
public class baboon{
public static boolean eastLock = false;
public static boolean westLock = false;
public static int onBranch = 0;
public static void main(String [] args)
{
BaboonEast bEast = new BaboonEast();
BaboonWest bWest = new BaboonWest();
for (int i=1; i<=10; i++)
{
new Thread(bEast, \"E: \"+i).start();
new Thread(bWest, \"W: \"+i).start();
//bEast.start();
}//for
}//main
}//class
class BaboonEast extends Thread
{
public void run()
{
while (baboon.westLock == true)
{
System.out.println(Thread.currentThread().getName() + \"
waiting\");
try
{
sleep(50);
} catch (InterruptedException ex) {}
}//while
//baboon.eastLock = true; //stops west baboons entering
baboon.onBranch ++;
baboon.westLock = true;
baboon.eastLock = true;
System.out.println(\"Baboon \" + Thread.currentThread().getName() + \" is
entering\");
try
{
sleep(100);
} catch (InterruptedException ex) {}
baboon.onBranch --;
System.out.println (\"Baboon \" + Thread.currentThread().getName() + \"
has crossed\");
if (baboon.onBranch <= 0)
{
baboon.eastLock = false;
baboon.westLock = false;
}
//System.out.println(baboon.onBranch);
}//run
}//class
class BaboonWest extends Thread
{
public void run()
{
while (baboon.eastLock == true)
{
System.out.println(Thread.currentThread().getName() + \"
waiting\");
try
{
sleep(50);
} catch (InterruptedException ex) {}
}//while
baboon.westLock = true; //stops east baboons entering
baboon.onBranch ++;
System.out.println(\"Baboon \" + Thread.currentThread().getName() + \" is
entering\");
baboon.westLock = true;
baboon.eastLock = true;
try
{
sleep(100);
} catch (InterruptedException ex) {}
baboon.onBranch --;
System.out.println (\"Baboon \" + Thread.currentThread().getName() + \"
has crossed\");
if (baboon.onBranch <= 0)
{
baboon.westLock = false;
baboon.eastLock = false;
}
//System.out.println(baboon.onBranch);
}//run
}//class.
African and white abolitionist often did not get along whySoluti.pdf
African and white abolitionist often did not get along why?
Solution
Black and white abolitionists have worked together, but by the 1840s there was a notable
difference in their philosophy and method. Mainly because the white abolitionists focused on
slavery, but the black Americans tended to couple anti-slavery activities with demands for racial
equality and justice..
What unique properties of the genome do forensic scientists use to g.pdf
What unique properties of the genome do forensic scientists use to generate a DNA footprint and
this footprint enough to identify a specific (one) suspect?
Solution
only one tenth of a single percent of DNA differs from one person to another, forensic scientist
use these variable regions to generate a DNA profile of an individual using samples from blood ,
hair ,etc.
scientist find markers in a DNA sample by designing a small pieces of DNA(probes) that will
bind to a complementary DNA sequence in the sample.A series of probes bound to a DNA
sample creates a distinctive pattern for individual.scientist compare these DNA profile to
determine whether the suspect\'s sample matches the evidence sample.if they don\'t match the
person don\'t contribute to the crime scene.If it match it means the suspect may have contributes
to the evidence sample.
There are variable number of tendom repeats which are used to identify the suspects, which vary
in each person.
RFLP(restriction fragment length polymorphism ) is a technique used in this concern as it
analyze variable length of DNA fragments that results from digesting a DNA sample with a
special kind of enzyme.
various other techniques are also there as- PCR,STAR analysis.
what are the five major activities of an operating system in regard .pdf
what are the five major activities of an operating system in regard to file management?
Solution
Operating systems perform the vital function of being the bridge between a computer\'s hardware
and software. They provide an environment where software can be written without the need to
cater to the specifics of the underlying hardware, which was necessary in the earlier days of
computing. There are several widely-used operating systems which differ from each other in
many respects. However, they each perform a number of similar functions including executing
basic instructions, either compiled or interpreted; and also managing processes, memory, input
and output, storage, network operations, and file and folder/directory operations.
There are five major file management functions that an operating system controls.
CREATING AND DELETING FILES :
File creation and deletion are fundamental to computer operations. In the former, data can\'t be
stored in an efficient manner unless arranged in some form of file structure. In the latter,
permanent storage would quickly fill up if files were not deleted and the space occupied by them
reallocated to new files.
CREATING AND DELETING DIRECTORIES:
As a corollary to the need to store data in files, files themselves need to be arranged in directories
or folders in order to allow their efficient storage and retrieval. This is particularly so in the case
of personal computers where the user needs to navigate to one or more specific files to access
them. Without some form of compartmentalization, this would prove an onerous if not
impossible task. Much like file deletion, unnecessary directories or folders need to be removed in
order to keep the system uncluttered.
FILE MANIPULATION INSTRUCTIONS:
Since operating systems allow application software to perform file manipulation using symbolic
instructions, the operating system itself needs to have a machine-level instruction set in order to
interface with the hardware directly. The application\'s symbolic instructions need to be
translated into the machine-level instructions either by an interpreter or by compiling the
application code. The operating system contains provisions to manage this machine-level file
manipulation.
BACKING UP FILES :
Files represent a considerable investment in time, intellectual effort and often money as well,
thus their loss can have a severe impact. Computer\'s permanent storage devices generally
contain a number of mechanical devices which can fail, and the storage media itself may
degrade. A function of operating systems is to obviate the risk of data loss by backing files up on
additional secure and stable media in a redundant system.
MAPPING TO PERMANENT STORAGE :
Operating systems need to be able to map files and folders to their physical location on
permanent storage in order to be able to store and retrieve them. This will be recorded in some
form of disk directory which varies according to the file system or systems that the opera.
What are the key components of a typical centralized all-air HVAC sys.pdf
What are the key components of a typical centralized all-air HVAC system? Write the
component name and their corresponding function/role. Based on the heat transfer media,
HVAC systems can be classified into how many systems? Which system is the most popular
system and why?
Solution
HVAC stands for Heating, Ventilating and Air Conditioning.
The key components and their functions are as follows:
1. Thermostat. - to keep the home at a desired temperature. When the ambient temperature
becomes too cold or too hot, the thermostat will trigger the heat exchanger or the evaporator coil-
condensing unit combo to begin circulating warmed or cooled air as needed.
2. Furnace. - to heat a supply of air which is to be distributed to various rooms of the building via
the HVAC. This heating process is accomplished using one of four possible heat sources --
combustion (burning natural gas, oil, coal, or propane), electric resistance, heat pump, or solar
energy collected on site.
3. Heat exchanger. - switches on when the furnace is activated by thermostat to produce warmer
temperatures in winter. The heat exchanger pulls in cool air, heats it, and circulates the resulting
heated air via your ducts and out through the vents.
4. Evaporator coil. - it acts to cool the air when the thermostat is set to lower temperatures in
summer. which is then circulated through the ductwork.
5. Condensing unit. - When the refrigerant has been cooled to a liquid by heat exchange with the
exterior air, the condensing unit pumps the liquid to the evaporator coil to be evaporated into a
gas once more.
6. Refrigerant lines. The refrigerant lines carry a refrigerant substance to the condensing unit
vaporized in the form of a gas, and return it to the evaporator coil in liquid form.
7. Ductwork. - system of ducts that transports air warmed or cooled by the system to the various
areas of the building.
8. Vents. - transfer the heated or cooled air from the duct system into the individual rooms of the
building..
What are lymphoid nodules and where are they located What functions.pdf
What are lymphoid nodules and where are they located? What functions are served by these? (1
paragraph)
Solution
These are small localised ovoid or kidney shaped organs containing collection of lymphoid
tissue. They are generally located in the loose connective tissue under wet epithelial membranes
eg-digestive system, respiratory system etc. They are located in the walls of alimentary canal
(tonsils, appendix and caecum, Peyer\'s patches), genitourinary passages, respiratory tract and
also in other parts of the body. Peyer\'s patches are permanently localized lymphoid tissue in the
sub mucosa of ileum. To defend nasal and oral cavities in the body lymphatic nodules are
grouped together forming tonsils which are of three pairs viz. Palatine, Lingual and Pharyngeal.
They help in the proper functioning of the immune system. They act as a filter for foreign
particles and cancer cells. They guard the body and respond to entry of infectious organisms and
toxins. Lymphoid nodules are the sites of proliferation/activation of lymphocytes (B cells). It
occurs in the germinal centre..
Useful addition rules for mutually exclusive eventsRule 1 Given .pdf
Useful addition rules for mutually exclusive events:
Rule 1: Given N mutually exclusive events {A1,A2, ... ,AN} then
P(A1) + P(A2) + ... + P(AN) = 1.0
Rule 2: P(A particular mutually exclusive event) = 1 - P(all the others) This rule is very useful!
For example:
Suppose I toss a coin 10 times (or 10 coins once) and ask what is the probability of getting at
least one head in 10 tosses. We could do this in two ways one is to sum probabilities P(1 at least
head in 10) + P(2 heads in 10) + P(10 heads in 10) or we can simply go:
P(1 at least head in 10 tosses) = 1 - P(no heads in 10 tosses) = 1 - 1/(2^10)
Application to genetics:
Activity 6
For maternal and paternal chromosomes in the human gamete example, what is the probability of
a gamete having at least one maternal chromosome?
Activity 7
Many types of color blindness are what are called X linked, that is determined by genes on the X
chromosome. Suppose a woman is carrying one X chromosome with the gene for a particular
type of color blindness; her other X chromosome does not have this gene. If she is married to a
man who does not have this gene on his X chromosome. You may remember that color blindness
is X linked recessive.
A. What is the probability that her first child will carry the X chromosome with the gene
associated with color blindness?
B. Suppose amniocentesis reveals that the child is male. What is the probability that the child is
color blind. Hint: this involves conditional probability
Solution
answer 6) P(at least one maternal) = 1 - P(no maternal )
maternal and paternal one chromosone similar
and 1 chromosome different then
the probability of no maternal = 1/2
hence the probability of atleast one = 1-1/2 = 1/2.
This if for a C# assignment.Please explain a scenariouse case for.pdf
This if for a C# assignment.
Please explain a scenario/use case for each of the following design patterns. Does not have to be
long but it can not be one online please help!
A) Adapter
B) Briidge
C) Composite
D) Decorator
E) Facade
F) Flyweight
G) Proxy
Solution
A)Adapter:It is mainly preloved to change the interfcae of a class into other interface that clients
anticipates.
B)Briidge:It is deliberated to to remain the interface with client programm constraint when
permiting to modify the real type of class utilized.then the interface can be modified and the
class being individually.
C)Composite:It is a group of objects any of the class is a composite or simply a primary object.it
allows the users individual and composition of objects much consisitently.
D)Decorator:it is a class which that encircles a class ,appends a fresh abilities for a class and
proceeds the unmodified methods to the classes being.
E)Facade:It assembles a complex object heirarchy ,offers a fresh ,easier interface to acess the
data.it senses a gaint-level interface which acquires a sub system uncomplicated utilization.
F)Fly weight:it offers a procedure to restrict the prolification of little ,same class instances
mobiling a few of the class data exterior the class and progressing at the time of different
execution methods.it utilizes the splitting to enhance the more number of objects effectively.
G)Proxy:It offers a proxy (or) easy place-holder class for much composite class which was high
cost to instance..
The Hubble law shows the relationship between the mass of a galaxy a.pdf
The Hubble law shows the relationship between the mass of a galaxy and its distance.
Solution
The distant galaxies we see in all directions are moving away from the Earth, as evidenced by
their red shifts. Hubble\'s law describes this expansion. The fact that we see other galaxies
moving away from us doesnotimply that we are the center of the universe!Allgalaxies will see
other galaxies moving away from them in an expanding universe unless the other galaxies are
part of the same gravitationally bound group or cluster of galaxies. A rising loaf of raisin bread is
a good visual model: each raisin will see all other raisins moving away from it as the loaf
expands.
The fact that the universe is expanding then raises the question \"Will it always expand?\" Since
the action of gravity works against the expansion, then if the density were large enough, the
expansion would stop and the universe would collapse in a \"big crunch\". This is called a closed
universe. If the density were small enough, the expansion would continue forever (an open
universe). At a certain precise critical density, the universe would asymtotically approach zero
expansion rate, but never collapse. Remarkably, all evidence indicates that the universe is very
close to that critical density. Discussions about the expansion of the universe often refer to
adensity parameter which is the density divided by the critical density, such that = 1 represents
the critical density condition.
Hubble\'s Law
Hubble\'s law is a statement of a direct correlation between the distance to a galaxy and its
recessional velocity as determined by the red shift. It can be stated as
v = H0r, v= recessional velocity, H0=Hubble constant, r=distance.
Hubble Parameter
The proportionality between recession velocity and distance in the Hubble Law is called the
Hubble constant, or more appropriately the Hubble parameter since it does depend upon time. In
recent years the value of the Hubble parameter has been considerably refined, and the current
value given by the WMAP mission is 71 km/s per megaparsec.
The recession velocities of distant galaxies are known from the red shift, but the distances are
much more uncertain. Distance measurement to nearby galaxies uses Cepheid variables as the
main standard candle, but more distant galaxies must be examined to determine the Hubble
constant since the direct Cepheid distances are all within the range of the gravitational pull of the
local cluster. Use of the Hubble Space Telescope has permitted the detection of Cepheid
variables in the Virgo cluster which have contributed to refinement of the distance scale.
The Particle Data Group documents quote a \"best modern value\" of the Hubble constant as 72
km/s per megaparsec (+/- 10%). This value comes from the use of type Ia supernovae (which
give relative distances to about 5%) along with data from Cepheid variables gathered by the
Hubble Space Telescope. The value from the WMAP survey is 71 km/s per megaparsec..
The difference between the saturated dissolved oxygen concentration .pdf
The difference between the saturated dissolved oxygen concentration and the ambient dissolved
oxygen concentration is represented with which symbol?
a) D
b) DO
c) BOD
d) DOsat
Solution
Oxygen deficit = Saturation dissolved oxygen - Actual dissolved oxygen
Oxygen deficit represented with symbol -- D
option (a) is correct.
1) What does globalization mean2) Is globalization a good thi.pdf
1) What does globalization mean?
2) Is globalization a good thing or a bad thing? Why?
3) Are we experiencing global integration or disintegration?
4) Why is it important to widen our global view?
5) What examples of globalization can you identify in your life?
1) What does globalization mean?
2) Is globalization a good thing or a bad thing? Why?
3) Are we experiencing global integration or disintegration?
4) Why is it important to widen our global view?
5) What examples of globalization can you identify in your life?
1) What does globalization mean?
2) Is globalization a good thing or a bad thing? Why?
3) Are we experiencing global integration or disintegration?
4) Why is it important to widen our global view?
5) What examples of globalization can you identify in your life?
Solution
1) globalisation means acceptance of different cultures across the world. People exchange ideas.
Share cultural knowledge, etc due to globalisation
2) globalisation is a good thing. It helps in exchange of ideas from different sections of the
society. T brings humanity and brotherhood among people of different cultures
3)there is global integration due to globalisation which is good
4) it is important to widen our global view because it helps us to reach people of different
cultures. It makes a person perspective large towards the society.
5)
The examples of globalisation includes trade among different countries. It also includes social
help for the under priveledge.
SNR calculation for conventional AM small noise case Prove that sign.pdf
SNR calculation for conventional AM small noise case? Prove that signal and noise components
are no longer additive in an envelope detector? In SoS development process, explain why it is
important that system selection and architecture design should be concurrent activities and why
there should be close links between them. Let C be a closed path that lies on the unit circle in the
p-plane and that is traversed in the clockwise direction in order to evaluate W (p). Determine the
net number of times the plot of W (p) encircles the origin in a clockwise direction for W (p) = (1
-1/2 p^-1)/(1 -1/4p^-1)
Solution
Q3:
The SoS development process play an important role in large and complex entities in the
application domain and organization essential requirements for development strategies using
System selection and Architecture Design.
Architecture design is same as System selection. An entire architecture design is SoS
development stage which depends upon various parameters using interface and integration
development process exists in application system..
Question 6 Of the following, which one is not a component of the proj.pdf
Question 6 Of the following, which one is not a component of the project change control
system?
Solution
Question 6: schedule change control system is not a component of project change control system
as it involves reviewing, approving, carrying out and controlling changes to the project\'s
deliverables. Change Control is applicable after the first version of a deliverable has been
completed and agreed..
CLASS 11 CBSE B.St Project AIDS TO TRADE - INSURANCE
Class 11 CBSE Business Studies Project ( AIDS TO TRADE - INSURANCE)
TESDA TM1 REVIEWER FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...
TESDA TM1 REVIEWER FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH ANSWERS.
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Each of the following is a function of membranes except sites for specific biochemical functions
regulation of transport. cell - cell communication. information storage. defining cell and
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Solution
Biological membranes serve as defining boundaries of the cells and membrane bound cell
organelles. They also serve in transport of selected substaces through them and thereby maintain
the cell\'s interior. They serve as site for complex reactions and are central to cell cell
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Develop a detailed Compliance budget for fiscal year 2015-16 for a 100-bed skilled nursing
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Solution
A detailed copliance is done by looking into some things. in which that hopital company can
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1.) see that, the department has large amount of funded beds that are not used.
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Devlin Inc produces snack foods such as bagel chips. The company had .pdf
Devlin Inc produces snack foods such as bagel chips. The company had the following
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Income statement :
Balance sheet :Revenue22696Less: ExpensesCost of sales(8215)Selling,general and
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Choose the one that the correct sequence (going from Mart to finish) .pdf
Choose the one that the correct sequence (going from Mart to finish) for the lymphatic system
duct, capillary, vessel, trunk, duct, vessel. capillary vessel, trunk capillary, duct capillary, vowel,
trunk, duct There is congestion in the flow when the lymph enters the lymphatic node to increase
the component by the lymphocytes True False John is considers a high-risk individual as his
immune system has many delicacies Thus of he was to be infected by a serious disease, one
would go about using which type of immunity? passive, nature scoured passive, scoured nature
Active, artificially acquired
Solution
Please find the answers below and explanations in parentheses:
Answer 36: Choice 4 (A small capillary collects the lymph from the interstitial tissue bed. A
number of these small capillaries combine to form a small vessel. A few vessels combine to
drain all the lymph fluid into a large trunk which transports the lymph across the body)
Answer 37: True (The lymph fluid is comprised of large amounts of lymphocytes which help in
fighting the infections. The lymphocytes are primarily concentrated at the lymph nodes. When
the lymph arrives at these lymph nodes, the lymphocytes accumulate to analyse the lymphatic
fluid for any infeciton of pathogens. This creates a temporary resistance to flow and causes slight
congestion of fluid across the lymphatic vessels which is cleared by some time)
Answer 38: Choice D (Since John is at risk of immune response and low on immunity, it clearly
suggests that he his immune response depends upon artificially acquired boost due to
immunization and thus result in active immune response against multiple infections. Had he not
had been pre-immunized, the primary source of immunity might had been his natural defence
against infections.).
Connecting the Concepts Structural Adaptations in Land Plants What .pdf
Connecting the Concepts: Structural Adaptations in Land Plants What structural adaptations
enable plants to live on land? Part A Drag the terms to their correct locations in this concept
map.
Solution
a. Vascular system
b. mosses- laks vascular system xylem and phloem.
c. lignin- natural polymer and not made of carbohydrates.
d. Ferns- have vascular tissues to transpot food and water.
e. phloem- distributes sugar and nutrients prepared in the shoot.
f. xylem- distributes water and minerals taken up by roots.
g. water and minerals.
Business statistics1.How is the trend eliminated in the ratio-to-m.pdf
Business statistics
1.How is the trend eliminated in the ratio-to-moving average procedure?
2. Why take the seasonality out of a time series?
3. Does a index of 103 indicate above or below average?
4. What is autocorrealtion?
5. Be able to read and interpret a short time series using an index.
6. What is done with seasonal indexes?
7. Be able to read and interpret a short time series using an index.
8. Hypothesis tests for nominal and ordinal merasurement are?
9. Chi-square test?
10. Sum of differences in expected and observed frequencies
Solution
1)It is harder to see a trend in a noisy time series thats why it is eliminated in the ratio-to-moving
average procedure.
2)Unlike the trend and cyclical components, seasonal components, theoretically, happen with
similar magnitude during the same time period each year. The seasonal components of a series
are sometimes considered to be uninteresting and to hinder the interpretation of a series.
Removing the seasonal component directs focus on other components
4)Autocorrelation is the correlation between the elements of a series and others from the same
series separated from them by a given interval.
6)A seasonal index is used when forecasting products with seasonal demand patterns.
9)A chi-squared test, also referred to as.
At the end of Meiosis I for this organism, what is the policy number .pdf
At the end of Meiosis I for this organism, what is the policy number (n, 2n, 3n, 4n)?
Solution
Answer: n (haploid)
Considering that the organism is diploid (2n) and undergoes meiosis to form the gametes, one
diploid cell undergoes division to reduce the chromosome number to half. So, at the end of
meiosis 1, the two cells so produced are haploid (n) with a DNA content of 2C..
Assignment Write a multithreaded Java program that uses either semap.pdf
Assignment: Write a multithreaded Java program that uses either semaphores or Java
synchronization to control access to a one-lane bridge. One thread should simulate eastbound
vehicles and another thread should simulate westbound vehicles. The vehicles do not have a
reverse gear, so the bridge would become deadlocked if both an eastbound vehicle and a
westbound vehicle were allowed to drive onto the bridge at the same time. Therefore, mutual
exclusion must be enforced. Your solution should avoid both deadlock and starvation (e.g. the
bridge being monopolized by westbound vehicles while the eastbound vehicles never get to
cross). Vehicles traveling in either direction should wait (sleep) for some amount of time, then
attempt to cross. Once a vehicle is on the bridge, it should sleep for some amount of time to
simulate how long it takes to drive across the bridge. Output a message when each vehicle drives
onto the bridge and another message when that vehicle has completed the crossing. Simulate
several vehicles traveling in each direction.
Solution
public class baboon{
public static boolean eastLock = false;
public static boolean westLock = false;
public static int onBranch = 0;
public static void main(String [] args)
{
BaboonEast bEast = new BaboonEast();
BaboonWest bWest = new BaboonWest();
for (int i=1; i<=10; i++)
{
new Thread(bEast, \"E: \"+i).start();
new Thread(bWest, \"W: \"+i).start();
//bEast.start();
}//for
}//main
}//class
class BaboonEast extends Thread
{
public void run()
{
while (baboon.westLock == true)
{
System.out.println(Thread.currentThread().getName() + \"
waiting\");
try
{
sleep(50);
} catch (InterruptedException ex) {}
}//while
//baboon.eastLock = true; //stops west baboons entering
baboon.onBranch ++;
baboon.westLock = true;
baboon.eastLock = true;
System.out.println(\"Baboon \" + Thread.currentThread().getName() + \" is
entering\");
try
{
sleep(100);
} catch (InterruptedException ex) {}
baboon.onBranch --;
System.out.println (\"Baboon \" + Thread.currentThread().getName() + \"
has crossed\");
if (baboon.onBranch <= 0)
{
baboon.eastLock = false;
baboon.westLock = false;
}
//System.out.println(baboon.onBranch);
}//run
}//class
class BaboonWest extends Thread
{
public void run()
{
while (baboon.eastLock == true)
{
System.out.println(Thread.currentThread().getName() + \"
waiting\");
try
{
sleep(50);
} catch (InterruptedException ex) {}
}//while
baboon.westLock = true; //stops east baboons entering
baboon.onBranch ++;
System.out.println(\"Baboon \" + Thread.currentThread().getName() + \" is
entering\");
baboon.westLock = true;
baboon.eastLock = true;
try
{
sleep(100);
} catch (InterruptedException ex) {}
baboon.onBranch --;
System.out.println (\"Baboon \" + Thread.currentThread().getName() + \"
has crossed\");
if (baboon.onBranch <= 0)
{
baboon.westLock = false;
baboon.eastLock = false;
}
//System.out.println(baboon.onBranch);
}//run
}//class.
African and white abolitionist often did not get along whySoluti.pdf
African and white abolitionist often did not get along why?
Solution
Black and white abolitionists have worked together, but by the 1840s there was a notable
difference in their philosophy and method. Mainly because the white abolitionists focused on
slavery, but the black Americans tended to couple anti-slavery activities with demands for racial
equality and justice..
What unique properties of the genome do forensic scientists use to g.pdf
What unique properties of the genome do forensic scientists use to generate a DNA footprint and
this footprint enough to identify a specific (one) suspect?
Solution
only one tenth of a single percent of DNA differs from one person to another, forensic scientist
use these variable regions to generate a DNA profile of an individual using samples from blood ,
hair ,etc.
scientist find markers in a DNA sample by designing a small pieces of DNA(probes) that will
bind to a complementary DNA sequence in the sample.A series of probes bound to a DNA
sample creates a distinctive pattern for individual.scientist compare these DNA profile to
determine whether the suspect\'s sample matches the evidence sample.if they don\'t match the
person don\'t contribute to the crime scene.If it match it means the suspect may have contributes
to the evidence sample.
There are variable number of tendom repeats which are used to identify the suspects, which vary
in each person.
RFLP(restriction fragment length polymorphism ) is a technique used in this concern as it
analyze variable length of DNA fragments that results from digesting a DNA sample with a
special kind of enzyme.
various other techniques are also there as- PCR,STAR analysis.
what are the five major activities of an operating system in regard .pdf
what are the five major activities of an operating system in regard to file management?
Solution
Operating systems perform the vital function of being the bridge between a computer\'s hardware
and software. They provide an environment where software can be written without the need to
cater to the specifics of the underlying hardware, which was necessary in the earlier days of
computing. There are several widely-used operating systems which differ from each other in
many respects. However, they each perform a number of similar functions including executing
basic instructions, either compiled or interpreted; and also managing processes, memory, input
and output, storage, network operations, and file and folder/directory operations.
There are five major file management functions that an operating system controls.
CREATING AND DELETING FILES :
File creation and deletion are fundamental to computer operations. In the former, data can\'t be
stored in an efficient manner unless arranged in some form of file structure. In the latter,
permanent storage would quickly fill up if files were not deleted and the space occupied by them
reallocated to new files.
CREATING AND DELETING DIRECTORIES:
As a corollary to the need to store data in files, files themselves need to be arranged in directories
or folders in order to allow their efficient storage and retrieval. This is particularly so in the case
of personal computers where the user needs to navigate to one or more specific files to access
them. Without some form of compartmentalization, this would prove an onerous if not
impossible task. Much like file deletion, unnecessary directories or folders need to be removed in
order to keep the system uncluttered.
FILE MANIPULATION INSTRUCTIONS:
Since operating systems allow application software to perform file manipulation using symbolic
instructions, the operating system itself needs to have a machine-level instruction set in order to
interface with the hardware directly. The application\'s symbolic instructions need to be
translated into the machine-level instructions either by an interpreter or by compiling the
application code. The operating system contains provisions to manage this machine-level file
manipulation.
BACKING UP FILES :
Files represent a considerable investment in time, intellectual effort and often money as well,
thus their loss can have a severe impact. Computer\'s permanent storage devices generally
contain a number of mechanical devices which can fail, and the storage media itself may
degrade. A function of operating systems is to obviate the risk of data loss by backing files up on
additional secure and stable media in a redundant system.
MAPPING TO PERMANENT STORAGE :
Operating systems need to be able to map files and folders to their physical location on
permanent storage in order to be able to store and retrieve them. This will be recorded in some
form of disk directory which varies according to the file system or systems that the opera.
What are the key components of a typical centralized all-air HVAC sys.pdf
What are the key components of a typical centralized all-air HVAC system? Write the
component name and their corresponding function/role. Based on the heat transfer media,
HVAC systems can be classified into how many systems? Which system is the most popular
system and why?
Solution
HVAC stands for Heating, Ventilating and Air Conditioning.
The key components and their functions are as follows:
1. Thermostat. - to keep the home at a desired temperature. When the ambient temperature
becomes too cold or too hot, the thermostat will trigger the heat exchanger or the evaporator coil-
condensing unit combo to begin circulating warmed or cooled air as needed.
2. Furnace. - to heat a supply of air which is to be distributed to various rooms of the building via
the HVAC. This heating process is accomplished using one of four possible heat sources --
combustion (burning natural gas, oil, coal, or propane), electric resistance, heat pump, or solar
energy collected on site.
3. Heat exchanger. - switches on when the furnace is activated by thermostat to produce warmer
temperatures in winter. The heat exchanger pulls in cool air, heats it, and circulates the resulting
heated air via your ducts and out through the vents.
4. Evaporator coil. - it acts to cool the air when the thermostat is set to lower temperatures in
summer. which is then circulated through the ductwork.
5. Condensing unit. - When the refrigerant has been cooled to a liquid by heat exchange with the
exterior air, the condensing unit pumps the liquid to the evaporator coil to be evaporated into a
gas once more.
6. Refrigerant lines. The refrigerant lines carry a refrigerant substance to the condensing unit
vaporized in the form of a gas, and return it to the evaporator coil in liquid form.
7. Ductwork. - system of ducts that transports air warmed or cooled by the system to the various
areas of the building.
8. Vents. - transfer the heated or cooled air from the duct system into the individual rooms of the
building..
What are lymphoid nodules and where are they located What functions.pdf
What are lymphoid nodules and where are they located? What functions are served by these? (1
paragraph)
Solution
These are small localised ovoid or kidney shaped organs containing collection of lymphoid
tissue. They are generally located in the loose connective tissue under wet epithelial membranes
eg-digestive system, respiratory system etc. They are located in the walls of alimentary canal
(tonsils, appendix and caecum, Peyer\'s patches), genitourinary passages, respiratory tract and
also in other parts of the body. Peyer\'s patches are permanently localized lymphoid tissue in the
sub mucosa of ileum. To defend nasal and oral cavities in the body lymphatic nodules are
grouped together forming tonsils which are of three pairs viz. Palatine, Lingual and Pharyngeal.
They help in the proper functioning of the immune system. They act as a filter for foreign
particles and cancer cells. They guard the body and respond to entry of infectious organisms and
toxins. Lymphoid nodules are the sites of proliferation/activation of lymphocytes (B cells). It
occurs in the germinal centre..
Useful addition rules for mutually exclusive eventsRule 1 Given .pdf
Useful addition rules for mutually exclusive events:
Rule 1: Given N mutually exclusive events {A1,A2, ... ,AN} then
P(A1) + P(A2) + ... + P(AN) = 1.0
Rule 2: P(A particular mutually exclusive event) = 1 - P(all the others) This rule is very useful!
For example:
Suppose I toss a coin 10 times (or 10 coins once) and ask what is the probability of getting at
least one head in 10 tosses. We could do this in two ways one is to sum probabilities P(1 at least
head in 10) + P(2 heads in 10) + P(10 heads in 10) or we can simply go:
P(1 at least head in 10 tosses) = 1 - P(no heads in 10 tosses) = 1 - 1/(2^10)
Application to genetics:
Activity 6
For maternal and paternal chromosomes in the human gamete example, what is the probability of
a gamete having at least one maternal chromosome?
Activity 7
Many types of color blindness are what are called X linked, that is determined by genes on the X
chromosome. Suppose a woman is carrying one X chromosome with the gene for a particular
type of color blindness; her other X chromosome does not have this gene. If she is married to a
man who does not have this gene on his X chromosome. You may remember that color blindness
is X linked recessive.
A. What is the probability that her first child will carry the X chromosome with the gene
associated with color blindness?
B. Suppose amniocentesis reveals that the child is male. What is the probability that the child is
color blind. Hint: this involves conditional probability
Solution
answer 6) P(at least one maternal) = 1 - P(no maternal )
maternal and paternal one chromosone similar
and 1 chromosome different then
the probability of no maternal = 1/2
hence the probability of atleast one = 1-1/2 = 1/2.
This if for a C# assignment.Please explain a scenariouse case for.pdf
This if for a C# assignment.
Please explain a scenario/use case for each of the following design patterns. Does not have to be
long but it can not be one online please help!
A) Adapter
B) Briidge
C) Composite
D) Decorator
E) Facade
F) Flyweight
G) Proxy
Solution
A)Adapter:It is mainly preloved to change the interfcae of a class into other interface that clients
anticipates.
B)Briidge:It is deliberated to to remain the interface with client programm constraint when
permiting to modify the real type of class utilized.then the interface can be modified and the
class being individually.
C)Composite:It is a group of objects any of the class is a composite or simply a primary object.it
allows the users individual and composition of objects much consisitently.
D)Decorator:it is a class which that encircles a class ,appends a fresh abilities for a class and
proceeds the unmodified methods to the classes being.
E)Facade:It assembles a complex object heirarchy ,offers a fresh ,easier interface to acess the
data.it senses a gaint-level interface which acquires a sub system uncomplicated utilization.
F)Fly weight:it offers a procedure to restrict the prolification of little ,same class instances
mobiling a few of the class data exterior the class and progressing at the time of different
execution methods.it utilizes the splitting to enhance the more number of objects effectively.
G)Proxy:It offers a proxy (or) easy place-holder class for much composite class which was high
cost to instance..
The Hubble law shows the relationship between the mass of a galaxy a.pdf
The Hubble law shows the relationship between the mass of a galaxy and its distance.
Solution
The distant galaxies we see in all directions are moving away from the Earth, as evidenced by
their red shifts. Hubble\'s law describes this expansion. The fact that we see other galaxies
moving away from us doesnotimply that we are the center of the universe!Allgalaxies will see
other galaxies moving away from them in an expanding universe unless the other galaxies are
part of the same gravitationally bound group or cluster of galaxies. A rising loaf of raisin bread is
a good visual model: each raisin will see all other raisins moving away from it as the loaf
expands.
The fact that the universe is expanding then raises the question \"Will it always expand?\" Since
the action of gravity works against the expansion, then if the density were large enough, the
expansion would stop and the universe would collapse in a \"big crunch\". This is called a closed
universe. If the density were small enough, the expansion would continue forever (an open
universe). At a certain precise critical density, the universe would asymtotically approach zero
expansion rate, but never collapse. Remarkably, all evidence indicates that the universe is very
close to that critical density. Discussions about the expansion of the universe often refer to
adensity parameter which is the density divided by the critical density, such that = 1 represents
the critical density condition.
Hubble\'s Law
Hubble\'s law is a statement of a direct correlation between the distance to a galaxy and its
recessional velocity as determined by the red shift. It can be stated as
v = H0r, v= recessional velocity, H0=Hubble constant, r=distance.
Hubble Parameter
The proportionality between recession velocity and distance in the Hubble Law is called the
Hubble constant, or more appropriately the Hubble parameter since it does depend upon time. In
recent years the value of the Hubble parameter has been considerably refined, and the current
value given by the WMAP mission is 71 km/s per megaparsec.
The recession velocities of distant galaxies are known from the red shift, but the distances are
much more uncertain. Distance measurement to nearby galaxies uses Cepheid variables as the
main standard candle, but more distant galaxies must be examined to determine the Hubble
constant since the direct Cepheid distances are all within the range of the gravitational pull of the
local cluster. Use of the Hubble Space Telescope has permitted the detection of Cepheid
variables in the Virgo cluster which have contributed to refinement of the distance scale.
The Particle Data Group documents quote a \"best modern value\" of the Hubble constant as 72
km/s per megaparsec (+/- 10%). This value comes from the use of type Ia supernovae (which
give relative distances to about 5%) along with data from Cepheid variables gathered by the
Hubble Space Telescope. The value from the WMAP survey is 71 km/s per megaparsec..
The difference between the saturated dissolved oxygen concentration .pdf
The difference between the saturated dissolved oxygen concentration and the ambient dissolved
oxygen concentration is represented with which symbol?
a) D
b) DO
c) BOD
d) DOsat
Solution
Oxygen deficit = Saturation dissolved oxygen - Actual dissolved oxygen
Oxygen deficit represented with symbol -- D
option (a) is correct.
1) What does globalization mean2) Is globalization a good thi.pdf
1) What does globalization mean?
2) Is globalization a good thing or a bad thing? Why?
3) Are we experiencing global integration or disintegration?
4) Why is it important to widen our global view?
5) What examples of globalization can you identify in your life?
1) What does globalization mean?
2) Is globalization a good thing or a bad thing? Why?
3) Are we experiencing global integration or disintegration?
4) Why is it important to widen our global view?
5) What examples of globalization can you identify in your life?
1) What does globalization mean?
2) Is globalization a good thing or a bad thing? Why?
3) Are we experiencing global integration or disintegration?
4) Why is it important to widen our global view?
5) What examples of globalization can you identify in your life?
Solution
1) globalisation means acceptance of different cultures across the world. People exchange ideas.
Share cultural knowledge, etc due to globalisation
2) globalisation is a good thing. It helps in exchange of ideas from different sections of the
society. T brings humanity and brotherhood among people of different cultures
3)there is global integration due to globalisation which is good
4) it is important to widen our global view because it helps us to reach people of different
cultures. It makes a person perspective large towards the society.
5)
The examples of globalisation includes trade among different countries. It also includes social
help for the under priveledge.
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SNR calculation for conventional AM small noise case? Prove that signal and noise components
are no longer additive in an envelope detector? In SoS development process, explain why it is
important that system selection and architecture design should be concurrent activities and why
there should be close links between them. Let C be a closed path that lies on the unit circle in the
p-plane and that is traversed in the clockwise direction in order to evaluate W (p). Determine the
net number of times the plot of W (p) encircles the origin in a clockwise direction for W (p) = (1
-1/2 p^-1)/(1 -1/4p^-1)
Solution
Q3:
The SoS development process play an important role in large and complex entities in the
application domain and organization essential requirements for development strategies using
System selection and Architecture Design.
Architecture design is same as System selection. An entire architecture design is SoS
development stage which depends upon various parameters using interface and integration
development process exists in application system..
Question 6 Of the following, which one is not a component of the proj.pdf
Question 6 Of the following, which one is not a component of the project change control
system?
Solution
Question 6: schedule change control system is not a component of project change control system
as it involves reviewing, approving, carrying out and controlling changes to the project\'s
deliverables. Change Control is applicable after the first version of a deliverable has been
completed and agreed..
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