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why riboflavin absorbs in the UV-Vis region
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- The projections of the LGN to the visual cortex are easy to tract because: layers 1 and 2 are magnocellular pathways and layers 3,4,5 and 6 are parvocellular pathway layers 1 and 2 are parvocellular pathways and layers 3,4,5 and 6 are magnocellular pathway layers 2,3 and 5 are parvocellular and layers 1,4 and 6 are magnocellular doesn't matter because there is a mixture of pathways in each layersHow many different enzymatic activities are required in human cells to repair the most common damage caused by UV-irradiation?Define plakophilin-2).
- What is the innate immune response and how is it distinguished from the adaptive immune response? Edit View Insert Format Tools Table 12pt v Paragraph v B IUA 2 T? O words / ...How Selective NSAIDs can reduce inflammation and pain? What is the mechanism behind this? explain at your own wordspropose a hypothesis regarding the organism (escherichia, staphylococcus, pseudomonas, bacillus) that will demonstrate greater resistance to UV and why? if the hypothesis is supported, what specific experimental results will be observed? and what serves as the control treatment?
- Occupational Hearing Loss Frequent exposure to loud noise of a particular pitch can cause loss of hair cells in the part of the cochlea that responds to that pitch. People who work with or around noisy machinery are at risk for such frequency-specific hearing loss. Taking precautions such as using ear plugs to reduce sound exposure is important. Noise-induced hearing loss can be prevented, but once it occurs it is irreversible because dead or damaged hair cells are not replaced. FIGURE 33.24 shows the threshold decibel levels at which sounds of different frequencies can be detected by an average 25-year-old carpenter, a 50-year-old carpenter, and a 50-year-old who has not been exposed to on-the-job noise. Sound frequencies are given in hertz (cycles per second). The more cycles per second, the higher the pitch. FIGURE 33.24 Effects of age aria occupational noise exposure. The graph shows the threshold hearing capacities fin decibels) for sounds of different frequencies (given in hertz) in a 25-year-okj carpenter (blue), a 50-year-old carpenter (red), and a 50-year-otd who did not have any on-the-job noise exposure (brown). 3. Which of the three people had the best hearing in the range of 4,000 to 6,000 hertz? Which had the worst?Occupational Hearing Loss Frequent exposure to loud noise of a particular pitch can cause loss of hair cells in the part of the cochlea that responds to that pitch. People who work with or around noisy machinery are at risk for such frequency-specific hearing loss. Taking precautions such as using ear plugs to reduce sound exposure is important. Noise-induced hearing loss can be prevented, but once it occurs it is irreversible because dead or damaged hair cells are not replaced. FIGURE 33.24 shows the threshold decibel levels at which sounds of different frequencies can be detected by an average 25-year-old carpenter, a 50-year-old carpenter, and a 50-year-old who has not been exposed to on-the-job noise. Sound frequencies are given in hertz (cycles per second). The more cycles per second, the higher the pitch. FIGURE 33.24 Effects of age aria occupational noise exposure. The graph shows the threshold hearing capacities fin decibels) for sounds of different frequencies (given in hertz) in a 25-year-okj carpenter (blue), a 50-year-old carpenter (red), and a 50-year-otd who did not have any on-the-job noise exposure (brown). 2. How loud did a 1,000-hertz sound have to be for the 50-year-old carpenter to detect it?Occupational Hearing Loss Frequent exposure to loud noise of a particular pitch can cause loss of hair cells in the part of the cochlea that responds to that pitch. People who work with or around noisy machinery are at risk for such frequency-specific hearing loss. Taking precautions such as using ear plugs to reduce sound exposure is important. Noise-induced hearing loss can be prevented, but once it occurs it is irreversible because dead or damaged hair cells are not replaced. FIGURE 33.24 shows the threshold decibel levels at which sounds of different frequencies can be detected by an average 25-year-old carpenter, a 50-year-old carpenter, and a 50-year-old who has not been exposed to on-the-job noise. Sound frequencies are given in hertz (cycles per second). The more cycles per second, the higher the pitch. FIGURE 33.24 Effects of age aria occupational noise exposure. The graph shows the threshold hearing capacities fin decibels) for sounds of different frequencies (given in hertz) in a 25-year-okj carpenter (blue), a 50-year-old carpenter (red), and a 50-year-otd who did not have any on-the-job noise exposure (brown). 4. Based on these data, would you conclude that the hearing decline in the 50-year-old carpenter was caused by age or by job-related noise exposure?
- ________ are found only in skin, and detect skin deflection. Meissner’s corpuscles; hairy Merkel’s disks; glabrous hair receptors; hairy Krause end bulbs; hairyExplain in a more clinical detail the mode of actions of the following on the human skin cell or tissue: 1. Free radicals 2. Anti oxidants 3. Peptides and proteins 4. Retinoids 5. AHA/BHA35. Transsignalling is very important for the cell having thecytokine receptor False True
