what why and how

Tài liệu Color Atlas of Pharmacology (Part 3): Distribution in the Body docx

Ngày tải lên : 22/01/2014, 00:20

... determined by molecular size and electrical charge Fenestrated endothelia are found in the capillaries of the gut and endocrine glands In the central nervous system (brain and spinal cord), capillary ... space (area shown in ochre), accumulate in the membrane, and exit into the cytosol (blue area) Direction and speed of permeation depend on the relative concentrations in the fluid phases and the membrane ... water), and smaller in the obese and the aged The concentration (c) of a solution corresponds to the amount (D) of substance dissolved in a volume (V); thus, c = D/V If the dose of drug (D) and its...

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Organic Chemicals in the Environment pdf

Ngày tải lên : 14/03/2014, 19:20

... calcium, magnesium, iron and zinc and can therefore contribute to mineral deficiencies, as the minerals are not released from the phytate and are thus unavailable to the body Good and bad effects of ... bacteria and larger organisms Biofilms found on the hull of a ship consist of large organisms like barnacles, mussels, and host of other zooplankton and phytoplankton These biofilms slow a ship and ... reticulum and mitchondrial membranes have small amounts of cholesterol Detergents and Lysophospholipids O- Detergents are amphipathic molecules that can have charged or uncharged head groups and single...

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Novel Materials in the Environment: The case of nanotechnology ppt

Ngày tải lên : 15/03/2014, 16:20

... different attributes of the materials in question and their applications However, the functionality of the material, i.e what it is designed to and how it is capable of achieving it, appears to be ... new and emerging technologies and identify at the earliest possible stage areas where potential health, safety, environmental, social, ethical and regulatory issues may arise and advise on how ... MATERIALS AND NANOMATERIALS 2.9 As already noted (1.16 and 2.4), the properties and hence functionalities of nanomaterials can be very different from those of the bulk form and the component atoms and...

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Acid in the environment lessons learned and future prospects ertu

Ngày tải lên : 16/03/2014, 11:43

... landscape and bringing these new and candidate members of the EU into full compliance with LRTAP standards A major source of pollutants that cause acid deposition in areas of eastern Canada and ... high air quality standards upheld by both LRTAP and EU policies and continued movement toward even tougher standards will be halted by the votes of these new members Andonova, however, does not ... Command and Control: What' s the Best Approach for Solving Environmental Problems?" Winston Harrington and Richard Morgenstem use several case studies to provide an ex post evaluation of command -and- control...

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Human Pharmaceuticals in the Environment: Current and Future Perspectives pot

Ngày tải lên : 16/03/2014, 22:20

... enables identiﬁcation and quantiﬁcation without derivatization and typically results in lower detection limits (below ng/L and ng/g for liquid and solid samples, respectively) and better precision ... al [4] and Thomas and Hilton [77] in the UK; Heberer et al [35] and Ternes et al [73] in Germany; Halling-Sørensen et al [34] in Denmark; Buser et al [10] and Tixier et al [77] in Switzerland; ... human drug and biologics applications US Dept of Health and Human Services, Food and Drug Administration, US Center for Drug Evaluation and Research (CDER), Center for Biologics Evaluation and Research...

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ENCYCLOPEDIA OF SOILS IN THE ENVIRONMENT ppt

Ngày tải lên : 23/03/2014, 01:20

... areas of land We cannot manage effectively and sustainably that which we not know and thoroughly understand That is why the tasks of developing and disseminating sound knowledge of the soil and its ... nature and has set itself free of its constraints Agriculture and food security, erosion and salination, degradation of natural ecosystems, depletion and pollution of surface waters and aquifers, and ... woodland and grassland at Rothamsted Research in southern England The changes were assessed in light of the measured increases in acid deposition at this location, as shown in Figure 2, and are...

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Artificial Light in the Environment ppt

Ngày tải lên : 29/03/2014, 14:20

... existing National Parks and Areas of Outstanding Natural Beauty and the equivalent National Scenic Areas in Scotland seek to eliminate unnecessary outdoor light and to better design and manage that which ... Outstanding Natural Beauty and the equivalent National Scenic Areas in Scotland seek to eliminate unnecessary outdoor light and to better design and manage that which cannot be eliminated, and ... nuisance legislation in England and Wales, and Scotland keep the legislation under review 3.19 Because light at night has brought undisputable benefits, its use has expanded to the point where it...

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Odor Pollution in the Environment and the Detection Instrumentation potx

Ngày tải lên : 29/03/2014, 14:20

... J W and P N Bartlett 1996 Performance definition and standardization of electronic noses Sensors and Actuators B 33: 60-67 Gardner, J W and P N Bartlett 1999 Electronic Noses Principles and Applications ... cyclodextrine and chloroform In this way, computational chemistry helps to achieve a better understanding of what happens during the inclusion process This saves time- and money-consuming synthesis and ... Hansen and Rindel • Hydrogen sulfide (H2S) (2000); Koe and Yang (2000) 84 - 100% Wuebker and Friedrich • n-Butanol (C4H10O) (1996) Hybrid bioreactor: 65 - 100% Yeom and Yoo (1999) • Biofilter and...

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