نتایج جستجو برای: organisms
تعداد نتایج: 92573 فیلتر نتایج به سال:
Very few traditional foods that are consumed have been subjected to systematic toxicological and nutritional assessment, yet because of their long history and customary preparation and use and absence of evidence of harm, they are generally regarded as safe to eat. This 'history of safe use' of traditional foods forms the benchmark for the comparative safety assessment of novel foods, and of fo...
The wide range of plant and animal species that live on the planet – referred to as biodiversity – is now being threatened by intensive agriculture. A growing human population, however, also entails growing needs, which, in turn, requires current agricultural practices to maximize the use of available land while minimizing damage to the environment and biodiversity. Genetically modified (GM) cr...
Plastic debris at the micro-, and potentially also the nano-scale, are widespread in the environment. Microplastics have accumulated in oceans and sediments worldwide in recent years, with maximum concentrations reaching 100 000 particles m(3). Due to their small size, microplastics may be ingested by low trophic fauna, with uncertain consequences for the health of the organism. This review foc...
This well-known book has been thoroughly revised and brought up-to-date; it is now in its eighth edition. The writers have succeeded in producing a manual which is not merely a collection of facts but is a wellbalanced and readable book in which the student and practitioner will find all that is of importance in the science and practice of bacteriology. One says bacteriology, because, although ...
Interest in the intestinal parasitic protozoa that comprise the genus Giardia has increased considerably in the last quarter century. One reason for this has been the gradual recognition that Giardia organisms in humans are potentially pathogenic: while most frequently they occur in the absence of symptoms, they are sometimes capable of causing a mild, self-limiting intestinal syndrome, and eve...
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