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Human Biology

This solution details the types of infections that are common in three types of inherited immunodeficienies: complement C8 deficiency; X-linked agammaglobulinaemia (Bruton's disease); and selective IgA deficiency. It explains the underlying basis of why these patients are susceptible to these particular infections.

For each of the following conditions: 1) complement C8 deficiency: a defect that results in the functional absence of the eighth complement cascade. C8 is involved in the complement lytic pathway. 2) X- linked agammaglobulinaemia (Bruton's disease) :This affects an enzyme that is required for B cell development so pre B cell

Patulin (mycotoxins)

Please address the following about Patulin: 1.) The effect of patulin on the appropriate food animal(s). 2.) The food safety/public health of each patulin. 3.) The risk factors for mycotoxicosis in food producing animals and how the appropriate animal exposure to mycotoxins can be prevented at the pre-harvest level. Not

Diabetes Mellitus

What are the similarities and differences between starvation and diabetes mellitus?

Five questions addressing hormones and metabolism

Case Study 3: Gigantism is abnormally large growth during childhood caused by excess growth hormone secreted by the anterior pituitary gland. Robert Wadlow, born on February 22, 1918, weighed a normal eight pounds, six ounces. However, by the time Robert reached the age of six months old, he weighed 30 pounds (Hamilton, 1993). W

An overview of spinal cord injuries is presented.

Discuss some of the challenges, possibilities and goals for treating spinal cord injuries. Please include the pros and cons behind treatment options (for example, stem cells as well as the information at the Christopher Reeve Foundation site).

Mice Genetic Experiment: Hypothesis Testing

One can create "knockout" mice that are missing a specific gene through a process called gene targeting. An investigator created such a mouse for a cell surface receptor expressed by the vast majority of B and T lymphocytes called Mel-14. After creating mice homozygous for this mutation (termed Mel-14-/-), she compared the numbe

Discussion on various endocrinology questions.

This solution discusses four endocrinology questions: 1. List the four mechanisms involved in the regulation of aldosterone secretion. 2. Mr. Sanchez makes an appointment to see his doctor for pain in his abdominal area. Tests and x-rays reveal kidney stones as well as bones with a moth-eaten appearance. Further questionin

Help is given with areal density and mean spacing.

The area fraction associated with membrane proteins in the red blood cell (diameter = 8 µm) membrane is roughly 23%, while the lipids themselves take up roughly 77% of the membrane area. a.Approximately how many phospholipids make up the red blood cell membrane? b.How many membrane proteins would you estimate are in the r

Graft Versus Host Disease in twins debate

Please use at least 300 words to answer the following questions, and include references as part of your solution. Does Graft Versus Host Disease ever occur between identical twins? If so, what is the reasoning?

L. monocytogenes

1.) Discuss the zero tolerance policy for L. monocytogenes in the U.S. relative to the control policies in other countries.

E.Coli overview

1.) Summarize the characteristics of the strains of E. coli that are intestinal pathogens.

please help me understand the following dilution schemes

Consider the following dilution scheme: A. 1oomL lake water B. 5mL lake water into 45 mL diluent 0.1 ml - colonies TNTC C. 1mL from B into 9ml diluent 0.1 ml - colonies 425 D. 0.5mL from C into 4.5 mL diluent 0.1 ml - colonies 58 E. 2mL from D i

Fungi

(1) Fungi as human pathogens (2) Fungi and their symbiotic role (3) Fungi in commercial applications

Could someone please help with the following,please provide sources

(1) There are two circuits of blood flow to the body. Describe these two circuits in general terms. Beginning with the heart, which side of the heart pumps blood to each of the circuits? (2) A separate circuit involving the coronary blood vessels serves the heart. Describe the vascular route of coronary circuit, and suggest

Health Science

Your success at investigating the pattern of unusual student absences has led to your team being put in charge of the entire Health Department investigation. Your boss, the Director, has been working with school principals and parents and has sent you the following e-mail: http://science.education.nih.gov/Supplements/NIH6/inquir

Carbon Footprint and Nomadic Cultures

The carbon footprint left by people living in highly developed nations is astoundingly high. Some cultures, on the other hand, leave little, if any, carbon footprint. For instance, Nomadic cultures on many continents follow herds of migratory animals (e.g., the !Kung San of the Kalahari). Such people never settle permanently, an

Human circulatory system and the impacts of atherosclerosis

Original info only not from library please. I have to cover this topic: Select one specific disease associated with this organ system and explain how it affects the system and human health. Choose one of the three important human organ systems: Circulatory, Respiratory, & Endocrine. The human body is composed of a num

Greenhouse gas politics

Why do you feel there is debate about policies to reduce greenhouse gas emissions? How can science help resolve the debate? please list references, thanks...

Urinalysis

I am having problems with this assignment. Please help me. This assignment deals with the characteristics of urine and abnormal urinary constituents. Please help me with these topics on this assignment paper.

Neurobiology

Part 1. Complete problem 1 from the Problems in electrophysiology 2006 handout. You can find it in the electrophysiology handouts document in the course documents folder. Use the "RT/F ln" form for the GHK equation as was shown in class but multiply RT/F by 1000 to convert volts to millivolts. (Remember that the Nernst equation

Type 2 diabetes and kids

Type 2 diabetes is becoming increasingly common in the United States. The primary risk factor for type 2 diabetes is a history of obesity. Statistics show that children are becoming obese at an alarmingly high rate, and this correlates with increased rates of type 2 diabetes. When young children become overweight, the problem i

Rapid population growth

Many people regard the rapid population growth of developing countries as our most serious environmental problem. Others think that the population growth in developed countries, though smaller, is actually a greater threat to the environment. What kinds of problems result from population growth in developing countries and in in