cells differentiate
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Professor Diamond continues her discussion of the nervous system and begins by revisiting her discussion of the ascending path. She notes the presence of substantia gelatinosa in the area of the second neuron and describes the concept of homunculus, which is the upside-down representation of the body in the brain, and notes that this does not occur in the face for reasons unknown to neurologists. Professor Diamond then begins describing th...more
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Oxygen uptake by hemoglobin in red blood cells.
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An overview of early development of a zygote to an embryo. Embryonic and somatic stem cells.
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How does IT differentiate Jet Blue? Neeleman on things they are doing well: We decided to roll out a frequent flyer program, but held on long enough to make sure it was completely implemented and managed online--we don't send anything out via mail. JetBlue has 10 or 15 people available via telephone to deal with problems, and 700,000 members online. Neeleman on things JetBlue should improve: checking people in using technology, increasing ...more
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Professor Diamond continues her discussion of the nervous system beginning with a discussion of myelin-forming oligodendrocytes and Schwann cells, saltatory conduction from the nodes of ranvier, and the similarity of the function of microglia to monocytes. She moves on to describe the development of the neural tube by drawing a cross-section of the neural tube and depicting the changes it undergoes, forming the ventricles of the brain, whi...more
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Professor Diamond begins this lecture with her famous discussion of the human brain, demonstrating her favorite subject with a preserved sample. She then launches into a discussion of the muscular system, starting with its general functions: movement, support, heat generation, facial expression, and protection. She discusses nomenclature for muscles and how these are impacted by the number of muscle heads, the muscle length, muscle locat...more
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In this lecture, Professor Diamond continues her discussion of hematology by describing the two major blood cell types, erythrocytes and leukocytes. She begins by reviewing erythrocytes (red blood corpuscles or RBCs) and their characteristics. She discusses differences between RBC counts in men and women and factors like exercise that impact RBC counts. She then contrasts the properties of erythrocytes with those of leukocytes, noting t...more
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If the extent of French collaboration during World War II has been obscured, so too has the nature of resistance. Although the communist Left represented the core of the resistance movement, resistors came from any different backgrounds, including in their ranks Catholics, Protestants, Jews and socialists. Unlike the relationship between de-Christianization and right-wing politics, in the case of the resistance there is no clear correlatio...more
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Stefan Heller is trying to create inexpensive ear drops that can cure deafness. In this short talk, Heller describes how his team of researchers at Stanford University is transplanting stem cells into the ear to "regenerate" damaged hearing cells.
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While Sutton doesn't think there is a true method to differentiate a good idea from a bad one, there are ways to help improve the chances of success, the main one being consulting customers or potential customers.
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In this lecture, Professor Diamond begins with a review of the respiratory bronchile. She then continues to discuss the structure of the lungs including the trachea, hilum, primary bronchi, pulmonary arteries and veins, nerves, alveoli and diaphragm, as well as the parietal pleura and the visceral pleura. After building this foundation she describes the process of innervation and the firing of the phrenic nerve before moving into an intr...more
