Tutor profile: Shanelle Q.
Subject: Public Health
Explain the 4 steps of the public health approach
The public health model was created by the Centers for Disease Control and goes as follows: Step 1: Define the Problem Step 2: Identify Risk and Protective Factors Step 3: Develop and Test Prevention Strategies Step 4: Assure Widespread Adoption The first step the public health approach, define the problem, which is essential when addressing any public health concern. Without first practicing surveillance and collecting information about the problem, any resources and effort put towards it will not be as effective. By defining the problem, public health professionals are better equipped to address it. By understanding step 2, risk factors, professionals can realize where to focus their efforts. A risk factor is some characteristic that puts an individual or group of people at a larger chance of harm. Risk factors can be personal or environmental, and even behavioral. For example, someone who smokes has a higher risk of lung cancer than a similar person who does not smoke. Protective factors are the opposite of risk factors and decrease the risk of harm or the result of concern. For example, increased physical activity has been found to be a protective factor for many diseases. Step 3, develop and test prevention strategies, is all about making sure that an intervention works. Public health professionals would not want something that doesn't work to be released into the general population. This step also uses the previous data gathered in steps 1 and 2 to make the most informed decision and recommendation as to the course of action. Step 4, assure widespread adoption is essentially spreading what we know works. If there is an intervention that improves or even saves lives, it needs to be produced and distributed to as wide of a population as needed. This is making sure that people get what they need.
Subject: Basic Math
What is 6 divided by 1/3?
6 / (1/3)= (6/1) * (3/1)= 6*3= 18 Here's an easy way to remember how to divide by fractions: Dividing fractions is easy as pi, flip the second and multiply!
What is the difference between a phenotype and genotype?
The phenotype and genotype of an organism are both ways to describe it. The genotype is the genetic characteristics of the organism, while the phenotype is the physical characteristics. Specifically, the genotype is the specific combination of alleles a person possesses that code for a certain gene. The genotype gives rise to the phenotype. Another way to think about it is that the phenotype is what you can see with your eyes (ex: brown eyes), yet the genotype is the specific genetic combination that led to the expression of brown eyes.
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