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Humans as animals

Xem 1-20 trên 399 kết quả Humans as animals
  • The pattern of treatment of issues in this new edition follows that established with the fourth edition; nevertheless there are important changes. For instance, in the preface to the previous edition I wrote, “The five years since the third edition of Human Evolution: An Illustrated Introduction have been an extraordinarily productive time for paleoanthropology,” not least because of the number of new species of early humans that had been discovered. The same can be said of the period between the fourth and fifth editions. Since 1999 four new species of hominin have been announced.

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  • The lives of humans and animals have been intertwined since the beginning of civilization. Early humans learned to raise animals for food as well as to live alongside them as companions. Humans and animals develop strong interactions and lasting bonds to their mutual benefit. It is because of our close ties with animals that many people have mixed feelings about the use of animals in biomedical research—even scientists. In an ideal world, scientists would never need to use animals as research subjects.

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  • .ANIMALS, DISEASE AND HUMAN SOCIETY In recent years, the issue of animal disease has seldom been out of the headlines. The emergence of BSE and the threat of food-borne infections such as E.coli and salmonella have focused public attention on the impact of animal disease on human society. However, the problem of animal disease is far from new. Animals, Disease and Human Society explores the history and nature of our dependency on other animals and the implications of this for human and animal health.

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  • Breathing apparatus must be used where birds show signs of distress, and for this reason birds are of great value in enabling rescue parties to use breathing apparatus to best advantage (Burrell and Seibert, 1916). INTRODUCTION Like humans, domestic animals and fish and other wildlife are exposed to contaminants in air, soil, water, and food, and they can suffer acute and chronic health effect...

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  • Ureases, enzymes that catalyze urea hydrolysis, have received considerable attention for their impact on living organisms’ health and life quality. On the one hand, the persistence of urease activity in human and animal cells can be the cause of some diseases and pathogen infections. On the other hand, food production can be negatively affected by ureases of soil microbiota that, in turn, lead to losses of nitrogenous nutrients in fields supplemented with urea as fertilizer.

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  • 1-Bromopropane was introduced as an alternative to ozone layer-depleting solvents such as chlorofluorocarbons and 1,1,1-trichloroethane. However, a dozen human cases have been reported with symptoms and signs of toxicity to 1-bromopropane including numbness, diminished vibration sense in the lower extremities as well as ataxic gait. An epidemiological study also demonstrated dose-dependent prolongation of distal latency and decrease in vibration sense in the lower extremities. The initial animal experiments helped to identify and analyze the initial human case of 1-bromopropane toxicity.

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  • Brucellosis is one of the important bacterial zoonotic diseases worldwide. It is caused by the Gram-negative intracellular coccobacillus Brucella. Till today, the brucellosis remains as essential threat to animals and humans, particularly in developing areas of the world. Brucella spp. infects a variety of domestic and wild animals. In humans, it affects people of all age c. Transmitted by direct or indirect contact with infected animals or their products. The disease is suspected to be the cause of abortions which remain largely undiagnosed in both humans and animals.

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  • Dermatophytes are a group of closely related keratinophilic fungi that can invade keratinized humans and animals tissues such as skin, hair and nails causing dermatophytosis. They are an important cause of superficial fungal infection. Conventional methods like potassium hydroxide (KOH) direct microscopy and fungal culture lacks the ability to make an early and specific diagnosis, as it takes about four weeks for the culture to grow on Sabourauds dextrose agar.

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  • In recent scenario due to indiscriminate human activities the heavy metal pollution is very much concerned because of their toxicity for animal and human beings and their lack of biodegradability. Heavy metal toxicity is linked with a number of diseases but the severity of situation multiplies too many folds if these heavy metals are found in milk, which is the basic food item of vulnerable age group of people.

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  • Over the last few decades the prevalence of studies about probiotics strains has dramatically grown in most regions of the world. Probiotics are specific strains of microorganisms, which when served to human or animals in proper amount, have a beneficial effect, improving health or reducing risk of getting sick and the probiotics are used in production of functional foods and pharmaceutical products.

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  • Introduction: Phencyclidine (PCP) ( Fig. 8.1), a synthetic arylcyclohexylamine hallucinogen, had been first applied as an anaesthetic to animals and then to humans for a short period. PCP is known by street names of “angel dust” and “crystal”. Illicit use of PCP first appeared during mid-1960s along the West Coast, and then peaked in the United States in 1979; illicit PCP use declined by 1992. However, daily use of PCP has remained stable among young school seniors over the past decade; PCP is thus being an important drug of abuse [1–3]. It is being regulated as a subclass compound...

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  • Technology is the making, modification, usage, and knowledge of tools, machines, techniques, crafts, systems, methods of organization, in order to solve a problem, improve a preexisting solution to a problem, achieve a goal, handle an applied input/output relation or perform a specific function. It can also refer to the collection of such tools, machinery, modifications, arrangements and procedures. Technologies significantly affect human as well as other animal species' ability to control and adapt to their natural environments.

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  • Introduction: Oleander (Nerium oleander and Nerium indicum) is a relatively small evergreen tree of an Indian origin, and growing in Honshu, Shikoku, Kyushu and Okinawa islands in Japan. The plant contains cardiac glycosides in its leaves, stems and flowers and is known as one of poisonous plants; poisoning and fatal cases for domestic animals and humans due to ingestion of this plant were reported [1–6]. The main toxin of oleander is oleandrin. Oleandrin can be measured using cross-reaction of an immunoassay kit for digoxin [1], TLC [2], HPLC [7, 8] and LC/MS [3, 6].

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  • A lovable Soft Coated Wheaton Terrier is the subject of this project, which features advanced drawing techniques for accurately rendering both long and short fur, realistic “puppy dog” eyes, and a shiny textured nose. A complex grid helps you to sketch accurate proportions. The shading focuses on rendering the forms of the fur and individual features, as defined by a dominant light source.

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  • The detailed drawing of a bee in this project provides artists with an opportunity to enhance various skills, such as drawing several different textures. Several tidbits of information about bees are offered in sections titled “Bee Informed”. Suggested drawing supplies include good quality white drawing paper, graphite pencils, kneaded and vinyl erasers, and a pencil sharpener. This project is recommended for fine art educators and artists from age 12 to adult with good drawing skills. This project is divided into the following three sections:...

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  • In this project, you draw a lovable Dalmatian with realistic eyes and a shiny textured nose, with emphasis on the forms of her fur and individual features, as defined by a dominant light source. Curriculum is designed to enhance skills with: drawing a detailed outline within a complex grid; identifying accurate proportions; planning shading strategies; rendering the forms of a dog’s cranial and facial anatomy; and shading graduated values with crosshatching and hatching

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  • Meet Isaac – a Jack Russell Terrier and proud owner of my friend Rob! In this project, you first set up Isaac’s facial proportions and render a contour drawing. Then, you add texture to his fuzzy face with hatching, and shading to his nose with squirkling. This project is divided into the following six sections: SKETCHING PROPER PROPORTIONS: With a simple grid as a helpful guideline, you draw the various components of Isaac’s face, ears, and neck.

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  • In this project, you draw an unusual microscopic animal commonly referred to as a water flea. As with many advanced projects, both verbal instructions and visual steps may seem complex, as it is assumed that you already have strong drawing skills. However, you may be able to successfully complete this project with only basic skills if you have completed most of the lessons in the beginner sections. This project consists of the following three sections:

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  • The essential role of epidemiology is to improve the health of populations. Advances in epidemiology research are expected to play a central role in medicine and public health in the 21st century by providing information for disease prediction and prevention. This book represents an overview on the diverse threads of epidemiological research in that captures the new and exciting themes that have been emerging over recent years.

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  • This book began as a collection of articles on neuropsychiatric disease, but with a clear focus on Schizophrenia, which is a poorly understood but very disabling group of brain disorders. We now recognize schizophrenia as a disorder of the brain, but despite advances in treatment options we are still a long way from having effective treatments, particularly for cognitive symptoms, and lack effective interventions and ways to prevent this disease.

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