A decrease of human capital in an economy tends to,
| a. |
increase real incomes, because of increased labor productivity |
|
| b. |
increase real incomes, because of increased labor bargaining power |
|
| c. |
decrease real incomes, because of decreased labor productivity |
|
| d. |
decrease real incomes, because of decreased labor bargaining power |
In: Economics
1. Comparison of the Neanderthal genome to the modern human and chimpanzee genomes led to the conclusion that C->T and G -> A transition mutations were over-represented in the branch of the tree that led to Neanderthals. How could you tell whether a mutation was “over-represented”? Compared to what? Explain the specific methods and comparisons that were used to reach this conclusion, and how the results were interpreted. If a particular mutation was over-represented in ancient DNAs, then what sorts of molecular mechanism(s) you suspect? In other words, when did these excess C->T and G -> A transitions occur – (i) during reproduction in the lives of Neanderthals, or (ii) during post-mortem changes to their tissues over the centuries? Why?
In: Biology
There is no question that both nature (genetics) and nurture (environment) play a role in human characteristics and behavior. One way to tease apart the effect of nature and the effect of nurture is to study children who have been adopted at birth. These children are unique in that they received the genetic influence from their birth parents and the environmental influence from their adoptive parents. For example, a research study can be conducted to see if the amount of time a child spends watching TV is more correlated with the TV-watching time of his/her birth parent or adoptive parent. If the TV-watching time of the child is more correlated with the birth parent’s TV-watching time, it means that the propensity to watch TV might be genetically determined to a larger extent compared to environmental influence. If it’s more correlated with the adoptive parent’s TV-watching time, then it means that the propensity to watch TV might be influenced by the behavior of the adoptive parent to a larger extent.
Use the following dataset to answer the questions below:
|
Amount of Time Spent Watching Television (# of hours per day) |
|||
|
Subject ID # |
Child |
Child’s Birth Parent |
Child’s Adoptive Parent |
|
1 |
4 |
3 |
6 |
|
2 |
3 |
1 |
5 |
|
3 |
5 |
4 |
7 |
|
4 |
2 |
6 |
3 |
|
5 |
3 |
2 |
3 |
|
6 |
1 |
2 |
1 |
|
7 |
5 |
3 |
6 |
|
8 |
2 |
2 |
1 |
|
9 |
3 |
3 |
4 |
|
10 |
2 |
4 |
4 |
Calculate the Z scores for all the data points for the children and their birth parents. (please show work for at least a few so I can understand how to do them)
Explain the direction and strength of the relationship based on the r.
Calculate the Z scores for all the data points for the adoptive parents. (please show work for at least a few so I can understand how to do them)
Explain the direction and strength of the relationship based on the r.
In: Statistics and Probability
Assume that the duration of human pregnancies can be described by a Normal model with mean 267 days and standard deviation 14 days.
a) What percentage of pregnancies should last between 272 and 284 days?
b) At least how many days should the longest 20%of all pregnancies last?
c) Suppose a certain obstetrician is currently providing prenatal care to 60 pregnant women. Let y
represent the mean length of their pregnancies. According to the Central Limit Theorem, what's the distribution of this sample mean, y? Specify the model, mean, and standard deviation.
d) What's the probability that the mean duration of these patients' pregnancies will be less than 256 days?
In: Statistics and Probability
Which of these effects of climate change is NOT likely to negatively impact human health?
Atmospheric carbon dioxide levels, while overall increasing over the past several decades, do show regular cyclic fluctuations throughout the year. In what season are CO2 levels generally the lowest?
Which of these is an inducible defense?
In the south of France, winters are getting warmer, with fewer freezing nights. In this area, wild populations of the perennial herb Thymus vulgaris (thyme) successfully persist despite the changes. Survival of T. vulgaris has been linked to an increase in the proportion of plants that produce phenolic compounds. This is an example of ________.
a shift in phenological patterns in T. vulgaris in response to the effects of climate change
a shift in geographical range in T. vulgaris in response to the effects of climate change
a change in allele frequencies in T. vulgaris in response to the effects of climate change
the adaptation of T. vulgaris to a shift in precipitation patterns
In: Biology
Imagine that you are the Human Resources Director for a medical clinic. For this assignment, please design a recruiting plan for a new Registered Nurse. The plan you propose should address all of the following three elements:Propose a process for conducting a job analysis to modify the existing job description, which is included in the text as Appendix 9.1. You do not need to create a new job description, but you do need to create a list of specific steps that you would include in conducting a job analysis to improve the current job description. Formulate a plan that details how/where you would seek applicants for the new position. Create a set of at least 20 interview questions that you would use to prepare the recruiter to conduct an appropriate interview with potential candidates. Feel free to incorporate questions from this unit’s Supporting Lesson Links (“100 Potential Interview Questions”), other sources and your own creativity.
In: Nursing
Which person is most closely associated with the study of human behavior as it pertains to the unconscious mind?
Select one:
a. Albert Bandura
b. Sigmund Freud
c. Margaret Floy Washburn
d. Ivan Pavlov
2.
The ______ perspective had its greatest influences from social anthropology.
Select one:
a. sociocultural
b. neo-behavioristic
c. psychoanalytic
d. neuroscience
3.
When a researcher says she is concerned about experimenter bias, what is she concerned about?
Select one:
a. She is concerned about influencing the behavior of the participants because she knows what condition of the study they are in.
b. She is concerned about the outcomes of the study because her next federal grant is dependent upon what happens next.
c. She is concerned about the study because the experimental group and the control group are both receiving placebo controls.
d. She is concerned about the study because the population of interest has been recruited and is the same as the sample.
4.
A psychologist who gathers data while watching managers interact with their employees is using
Select one:
a. a correlational strategy.
b. naturalistic observation.
c. the survey technique.
d. a Gallup poll.
5.
Another name for the eardrum is the
Select one:
a. tympanic membrane.
b. organ of Corti.
c. cochlear window.
d. internal auditory canal.
6.
Gender differences in emotion and social behavior tend to be
Select one:
a. larger than differences in cognitive behavior.
b. of very little significance.
c. very reliable indicators of a person's personality.
d. much smaller than other gender differences.
7.
Because of the amount of effort put forth to give birth to a child and to nurture a child after it is born, women have a higher ______ children than men.
Select one:
a. ability to educate
b. curiosity about
c. parental investment in
d. lack of desire for
8.
Which of the following statements is true regarding Sigmund Freud's theory of behavior?
Select one:
a. Environmental factors influence our behavior much more than hereditary factors.
b. Unconscious sexual and aggressive motives greatly influence our behavior.
c. The best way to raise our children is to treat them like little adults.
d. Behavior can best be analyzed by breaking the mind into its structural elements.
9.
From childhood through adulthood, the ______ increases in size and becomes larger in women than men.
Select one:
a. hypothalamus
b. hippocampus
c. amygdala
d. thalamus
10.
Recessive traits appear only when the mother's gene is ______ and the father's gene is ______.
Select one:
a. dominant; recessive
b. dominant; dominant
c. recessive; dominant
d. recessive; recessive
In: Psychology
Using the program R, Assume that the distribution of the duration of human pregnancies can be approximated with a normal distribution with a mean of 266 days and a standard deviation of 16 days.
(a) What percentage of pregnancies should last between 260 and 280 days?
(b) Find a value x such that 10% of the pregnancies of a duration that is longer than x days.
(c) We select 500 pregnant women at random. Let N be the number of pregnancies in the sample with a duration between 260 and 280 days. Compute P(200 ? N ? 300) and P(N = 265).
(d) We select 10 pregnant women at random. What is the probability that the average duration of these 10 pregnancies will be less than 260 days?
(e) We select 60 pregnant women at random. What is the probability that the average duration of these 60 pregnancies will be less than 260 days?
(f) If the duration of a human pregnancy is not normally distributed (in fact it is highly skewed to the left), how does this impact your answers to (d) and (e)? (Explain in words. No computations are necessary for this question.)
In: Statistics and Probability
Assume that the duration of human pregnancies can be described by a normal model with mean 266 days and standard deviation 15 days. Complete parts a) through d) below.
a) What percentage of pregnancies should last between 265 and 270 days? % (Round to one decimal place as needed.)
b) At least how many days should the longest 30% of all pregnancies last? P(X greater than or equals nothing)=0.30 (Round to one decimal place as needed.)
c) Suppose a certain obstetrician is currently providing prenatal care to 30 pregnant women. Let (y overbar) represent the mean length of their pregnancies. According to the central limit theorem, what is the mean and standard deviation SD(y overbar) of the normal model of the distribution of the sample mean, (y overbar)? The mean is nothing. SD(y overbar)= (Round to two decimal places as needed.)
d) What is the probability that the mean duration of these patients' pregnancies will be less than 264 days? P(y overbar less than 264)equals nothing (Round to three decimal places as needed.)
In: Statistics and Probability
The driving force for HIT adoption is the recognition of human limitations in knowing, retaining and applying exponentially increasing amounts of relevant information to clinical processes. Health care planners could be effective and efficient if they used the concept of the natural history of disease and the levels of prevention to design services that intervene at the weakest link in the chain of progression of specific diseases. Instead, most focus on high-technology solutions to preventable problems while experts know that high-technology solutions do not address health disparities, the major causes of diseases and disabilities. What are some characteristics of the medical care culture that hinder the prevention focus? How can EHR's be used to address health disparities?
In: Nursing