Xem 1-20 trên 29 kết quả Major minerals
  • This book is about what we consider the essentials of human nutrition. The science of human nutrition deals with all the effects on people of any component found in food. This starts with the physiological and biochemical processes involved in nourishment—how substances in food provide energy or are converted into body tissues, and the diseases that result from insufficiency or excess of essential nutrients (malnutrition). The role of food components in the development of chronic degenerative disease like coronary heart disease, cancers, dental caries, etc.

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  • Once upon a time people simply sat down to dinner, eating to fill up an empty stomach or just for the pleasure of it. Nobody said, “Wow, that cream soup is loaded with calories,” or asked whether the bread was a highfiber loaf or fretted about the chicken being served with the skin still on. No longer. Today, the dinner table can be a battleground between health and pleasure. You plan your meals with the precision of a major general moving his troops into the front lines, and for most people, the fight to eat what’s good for you rather than what tastes good has become a...

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  • Flavonoids Flavonoids constitute a large family of polyphenols that contribute to the aroma, taste, and color of fruits and vegetables. Major groups of dietary flavonoids include anthocyanidins in berries; catechins in green tea and chocolate; flavonols (e.g., quercitin) in broccoli, kale, leeks, onion, and the skins of grapes and apples; and isoflavones (e.g., genistein) in legumes. Isoflavones have a low bioavailability and are partially metabolized by the intestinal flora.

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  • Funneling basic chemical, preclinical, and clinical data into a descriptive form useful to health care professionals, researchers, and educated, health-conscious consumers, Encyclopedia of Dietary Supplements presents peer-reviewed, objective entries that rigorously examine the most significant scientific research. It presents evidence-based information on the major vitamin and mineral micronutrients, single herbs and botanicals, phytochemicals, and other bioactive preparations.

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  • Atomic Absorption Spectroscopy is an analytical technique used for the qualitative and quantitative determination of the elements present in different samples like food, nanomaterials, biomaterials, forensics, and industrial wastes. The main aim of this book is to cover all major topics which are required to equip scholars with the recent advancement in this field. The book is divided into 12 chapters with an emphasis on specific topics.

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  • To support IPM training program of our TOT, experiments, field surveys and observations, laboratory experiments and breeding were conducted in Binh Phuoc, Dong Nai and Dak Lac province between July 2006 and March 2008. Data obtained from experiments and field surveys show that • The common insect pests damaging the terminal discharge water, apples and / or nuts as tea mosquito bug, shoot borers, bugs coreid, thrips, apple seeds borers, leaf rollers, leaf miners, aphids and other cores, including tea mosquito bugs, shoot borers, leaf rollers and apple borer, the main grain...

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  • At best, it is a source of strength, beauty, and wonder. We can compare the healthy body to a well-designed machine whose parts work smoothly together. We can also compare it to a symphony orchestra in which each instrument has a different part to play. When all of the musicians play together, they produce beautiful music. From a purely physical standpoint, our bodies are made mainly of water.We are also made of many minerals, including calcium, phosphorous, potassium, sulfur, sodium, chlorine, magnesium, and iron.

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  • This lab will introduce students to a simple bioassay that will allow them to explore the effects that a chemical's concentration has on the level of toxicity. By relying on morphological examination of sponges hatching from gemmules that are smaller than a millimeter in diameter, this module will help students develop their microscopy skills. Our major aim, however, is to have students strengthen their ability to design and test their own hypotheses.

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  • Reliable and comparable data on access to health care across the EU-27 Member States is limited. The most comprehensive available data comes from the 2007 Eurobarometer Survey Health and Long-Term Care in the European Union, which is a public opinion survey and sufficient only to suggest potential trends. Based on those women interviewed for the survey, the majority of European women report having easy access to health care. Approximately 88% of women felt that it was easy to access a family doctor or general practitioner.

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  • The increased attention given to equine nutritional issues during the last 6–7 years by research groups around the world, has prompted me to revise the 2nd edition of this book. The preparation of this edition entailed the careful reading of the previous edition and with it the embarrassing discovery of a few errors, including one or two in equations, which I have now corrected. It has been necessary to revise all chapters and other sections, some to a greater extent than others.

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  • Oracle 9i - SQL - Student Guide - Volume 1
    The Oracle Database (commonly referred to as Oracle RDBMS or simply Oracle) consists of a relational database management system (RDBMS) produced and marketed by Oracle Corporation. As of 2009[update], Oracle remains a major presence in database computing.[1] Larry Ellison and his friends and former co-workers Bob Miner and Ed Oates started the consultancy Software Development Laboratories (SDL) in 1977. SDL developed the original version of the Oracle software.

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  • Human activities have a large and important impact on the environment. Naturally occurring elements or compounds are often concentrated and redistributed in the environment through industrial processes, power production, and consumer activity. For example, lead, which is found in naturally occurring mineral deposits, has become a major pollutant through its use in batteries, paints, and gasoline additives.

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  • Fractures are ubiquitous in the brittle lithosphere in the upper part of earth’s crust. They play a critical role in the transport of fluids. Moreover, all major discovered geothermal reservoirs and a considerable number of petroleum reservoirs are in fractured rocks. This restates the importance of studying multiphase flow behavior inside the opened fracture space. From the engineering point of view, a rock fracture as defined here is simply a complex-shaped cavity filled with fluids or solid minerals. Therefore it is understood to include cracks, joints, and faults.

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  • IN BOTH NATURAL AND AGRICULTURAL CONDITIONS, plants are frequently exposed to environmental stresses. Some environmental factors, such as air temperature, can become stressful in just a few minutes; others, such as soil water content, may take days to weeks, and factors such as soil mineral deficiencies can take months to become stressful. It has been estimated that because of stress resulting from climatic and soil conditions (abiotic factors) that are suboptimal, the yield of field-grown crops in the United States is only 22% of the genetic potential yield (Boyer 1982).

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  • Antimicrobial properties of shiitake mushrooms (Lentinula edodes) Sir, The shiitake mushroom, Lentinula edodes (Berk.) Sing, is a culinary delicacy and has traditionally been used as medicine in Asia dating back over 2000 years. Shiitake mushrooms contain protein, lipids (primarily linoleic acid), carbohydrates, fibre, minerals, vitamins B1, B2 and C, and ergosterol, the D provitamin [1].

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  • Depletion of mineral resources is one of the major problems in the world. We have consumed available resources as if they were unlimited, and at the same time we generate a huge quantity of waste, thereby contaminating the Earth. The amount of waste in our society reflects how much resources we consume. We, as modern society, create more products and packaging which is visually appealing but cannot be easily decomposed. Energy demands, resource limitations, and environmental pollution are closely linked.

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  • The number of mineral elements that have been shown to have essential functions in the body has been increasing steadily since the 1950s. Major or macrominerals are required in relatively larger quantities ( 50 mg=(kg DM)) and include calcium, phosphorus, potassium....

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  • Depletion of mineral resources is one of the major problems in the world. We have consumed available resources as if they were unlimited, and at the same time we generate a huge quantity of waste, thereby contaminating the Earth. The amount of waste in our society reflects how much resources we consume. We, as modern society, create more products and packaging which is visually appealing but cannot be easily decomposed. Energy demands, resource limitations, and environmental pollution are closely linked.

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  • These replacement and/or supplementary supplies can be provided through organic manures and/or mineral fertilizers. This publication concerns the provision of raw mate- rials for two important mineral fertilizers, phosphate and potash. Three major nutrients are required in large quantities for plant growth, nitrogen, phosphorous and potassi- um. Three secondary nutrients are required in smaller quantities on some soils; sulfur, calcium and magne- sium. Seven micronutrients may be required in small amounts where deficient.

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  • Although phosphate rock and potash are used as raw materials for a wide range of applications, the most important use by far is the manufacture of mineral fertilizers. The primary source of these minerals is geological ore deposits formed through past sedimentary or igneous activities. In the case of potash, concentrated brines are also a significant source. This chapter provides a brief overview of the major activities involved in the mining, handling and benefi- ciation of phosphate rock and potash ore....

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