Human skin

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  • The skin plays an important role in maintaining the integrity of the living organism while allowing the interaction of the organism with its environment. To fulfill these functions, mechanical stability is as important as flexibility. The mechanical properties of skin are very diverse depending on the anatomical location, and they evolve throughout life from the fetus to old age. Both genetic and acquired skin diseases modify skin biomechanics, as do intrinsic and photoaging.

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Glutamate carboxypeptidase activity in human skin biopsies as a pharmacodynamic marker for clinical studies

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  • In recent years, possible health hazards due to radiofrequency radiation (RFR) emitted by mobile phones have been investigated. Because several publications have suggested that RFR is stressful, we explored the potential biological effects of Global System for Mobile phone communication at 900 MHz (GSM-900) exposure on cultures of isolated human skin cells and human reconstructed epidermis (hRE) using human keratinocytes.

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  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí sinh học đề tài : Glutamate carboxypeptidase activity in human skin biopsies as a pharmacodynamic marker for clinical studies

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  • Malassezia are common lipiddependent fungi that grow on the sebaceous areas of human skin. Malassezia can cause and exacebate several skin diseases: Tinea versicolor, pitirosporum folliculitis and seborrheic dermatitis. Malassezia also have been associated with subsets of psoriasis and atopic dermatitis, especially those affecting the scalp.

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  • One of the greatest challenges to confront an artist is drawing the human figure. Our bodies are infinitely complex yet intimately familiar, giving rise to a subject that is difficult to depict accurately yet judged incessantly. The human figure is almost overwhelmingly complex for the artist to draw. The human figure is an organic structure that defies geometric simplification. It is composed of bones, muscles, and organs, all of which are covered by a flexible layer of skin. The body has many moving parts that make it almost impossible to define as a shape. Within its skeleton are more...

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  • Introduction: Methanol (methyl alcohol) poisoning accidents take place most frequently by drinking it in mistake for ethanol. Methanol poisoning is not due to the effect of methanol itself, but due to toxicity of its metabolites. Methanol is rapidly absorbed into human body through the airway mucous membranes, digestive tract mucous membranes or the skin; it is metabolized into formaldehyde (formalin, HCHO) and then formic acid (HCOOH) by the actions of alcohol dehydrogenase and aldehyde dehydrogenase, respectively.

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  • Sea lion characteristics: Webbed flipper-like forefoot and hind foot. Front flipper thicker on front edge. Skin of flipper extends past tips of toe bones, supported by individual cartilages attached to ends of toe bones. Noticeable claws on three middle toes of hind foot; other claws tiny and inconspicuous. Front flipper triangular; hind flipper rectangular. Hind limb can be advanced forward—can walk, but thigh and lower leg encased in skin of abdomen (seals can't walk—their hind limbs permanently extended backward). Elbow also enclosed in body skin, but forearms are free.

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  • Other Nonmelanoma Cutaneous Malignancies Neoplasms of cutaneous adnexa and sarcomas of fibrous, mesenchymal, fatty, and vascular tissues make up 1–2% of NMSC (Table 83-6). Some can portend a poor prognosis such as Merkel cell carcinoma, which is a neural crestderived, highly aggressive malignancy that exhibits a metastatic rate of 75% and a 5-year survival rate of 30–40%. Others, such as the human herpes virus 8-induced, HIV-related Kaposi's sarcoma, exhibit a more indolent course.

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  • Since this book was first published in 1998, there have been significant advances in our understanding of the morphology of the skin and the properties that govern the transport of molecules into and across the three major strata. The multitude of data that has been generated has allowed the development of predictive models for both the rate and extent of dermal absorption and has increased our ability to predict the likelihood of local toxic events subsequent to solute penetration and permeation.

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  • The Internet has become an important form of communication in modern society, with a forecast of 500 million online globally by the year 2003. 1 Its increased use and accessibility have led to a burgeoning of cyber communities, where people of like minds and common interests transcend geographical barriers and communicate with one another on a range of subjects, some trivial, some controversial, and some intensely private.

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  • (BQ) Ebook Just the facts: Human body is a fact-by-fact look at the human body, from skin deep to the vital organs that keep us alive. This important reference guide features information on each part of the body, presented in easy-to-follow boxes according to the subject area, allowing every fact and statistic to be found quickly.

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  • This report from the National Committee on Vital and Health Statistics (NCVHS) outlines a vision and a process for mobilizing the human, institutional, and technological factors needed to support health decisionmaking through a National Health Information Infrastructure (NHII). NCVHS, a public advisory committee, is statutorily authorized to advise the Secretary of Health and Human Services (HHS) on national health information policy. It reports annually to Congress on progress toward privacy protection and administrative simplification.

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  • The lungs are the main route for dust entering the human body. Dust deposition in the pulmonary system varies considerably according to the granulometry of ultrafine dusts and their airborne behaviour. Normally, for coarser dusts encountered in work environments, the proportion of dusts deposited in the alveolar region increases as particle diameter decreases, reaching a maximum value of around 20% for 3-micrometre particles. This percentage then diminishes gradually.

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  • Connective tissue is the most abundant and widely distributed of the primary tissues, but its amount in particular organs varies. For example, skin consists primarily of connective tissue, while the brain contains very little. This chapter provides knowledge of connective tissue, indicate common characteristics of connective tissue, and list and describe its structural elements.

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  • Would you be enticed by an ad for a coat that is waterproof, stretchable, washable, and permanent-press, that automatically repairs small cuts, rips, and burns? How about one that’s guaranteed to last a lifetime? Sounds too good to be true, but you already have such a coat-your skin. The skin and its derivatives (sweat and oil glands, hairs, and nails) make up a complex set of organs that serves several functions, mostly protective. Together, these organs form the integumentary system.

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  • Similarly to retroviral vectors, the design of lentiviral vector packaging systems has evolved to minimize the risk of RCPs generation towards maximum safety. Currently, three generations of lentiviral vectors are considered. The first-generation (Naldini et al. 1996) closely resembles the three plasmid packaging system of simple retroviruses, except for the fact that the gag-pol expression is driven by a heterologous promoter instead of the viral LTR; additionally, the gp120 HIV-1’s envelope was replaced by VSV-G’s.

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  • At this point in our industry’s evolution, it’s important to have government involvement. Incumbent technologies, such as internal combustion engines for transportation and the electrical power grid, have a huge head start and, in many cases, the rules of the game are written to support their continuation. Our society is comfortable with these technologies and has depended on them for many generations. Because we are not yet producing products at high volume, we are often faced with an initial cost disadvantage compared to traditional, less sustainable power generation methods.

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  • Alberta is proving that environmental protection and economic development can happen at the same time. The province has shown leadership through legislation and policies involving land reclamation, water controls, air quality, and human and ecosystem health. In the oil sands, current production methods mean that more energy is needed to produce a barrel of oil than conventional oil. But the gap is closing. Technology continues to advance, reducing the energy and environmental impact of oil sands recovery. ...

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  • CP is normally issued with maturities of 270 days or less, though most CP has maturities of 90 days or under. Yields vary with maturity and credit quality, but CP normally offers a higher yield than Treasuries or agencies. Because CP has such a short maturity, the companies that issue it are almost constantly raising money in the market, rolling over or replacing CP that has just matured, as part of a commercial paper program. Since the CP market is generally open only to issuers with strong credit ratings, there have been few defaults over the years—but there have been some.

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