نتایج جستجو برای: organisms

تعداد نتایج: 92573  

Journal: :Ghana medical journal 2014
George Amofah

The Ghana Public Health Association organized a scientific seminar to examine the introduction of genetically modified organisms into public use and the health consequences. The seminar was driven by current public debate on the subject. The seminar identified some of the advantages of GMOs and also the health concerns. It is clear that there is the need to enhance local capacity to research th...

Journal: :Parasitology 2002
M E Tourchin K D Lafferty A M Kuris

Introduced marine species are a major environmental and economic problem. The rate of these biological invasions has substantially increased in recent years due to the globalization of the world's economies. The damage caused by invasive species is often a result of the higher densities and larger sizes they attain compared to where they are native. A prominent hypothesis explaining the success...

2016
Damien Tran Mohamedou Sow Lionel Camus Pierre Ciret Jorgen Berge Jean-Charles Massabuau

Although the prevailing paradigm has held that the polar night is a period of biological quiescence, recent studies have detected noticeable activity levels in marine organisms. In this study, we investigated the circadian rhythm of the scallop Chlamys islandica by continuously recording the animal's behaviour over 3 years in the Arctic (Svalbard). Our results showed that a circadian rhythm per...

2012
Shanmei Zou Qi Li Lingfeng Kong

BACKGROUND Correct identification and cryptic biodiversity revelation for marine organisms are pressing since the marine life is important in maintaining the balance of ecological system and is facing the problem of biodiversity crisis or food safety. DNA barcoding has been proved successful to provide resolution beyond the boundaries of morphological information. Nassarius, the common mudsnail...

2009
Kazuhiko Nakamura Yu Tachikawa Daisuke Uemura

The synthesis of (-)-complanine, an inflammatory substance of Eurythoe complanata, was accomplished by a "chiral synthon" approach. The absolute configuration of this molecule was determined to be R.

Journal: :Physical review letters 2011
Nidhi Khurana Jerzy Blawzdziewicz Nicholas T Ouellette

We computationally study the transport of active, self-propelled particles suspended in a two-dimensional chaotic flow. The pointlike, spherical particles have their own intrinsic swimming velocity, which modifies the dynamical system so that the particles can break the transport barriers present in the carrier flow. Surprisingly, we find that swimming does not necessarily lead to enhanced part...

ژورنال: بوم شناسی آبزیان 2014

World population growth and requirement to global food security, application of genetic engineering and utilization of transgenic organisms have made more important. Using this technology, without regarding to its risks, can cause loses to environment. To generate transgenic organisms, selection systems are applied that cause to selective growth of transformed cells. Antibiotic resistance genes...

1999
Richard E. Lenski Christoph Adami

For years, my group has used microorganisms as models to address fundamental hypotheses about the mechanisms and dynamics of genetic, ecological, and evolutionary processes [1-4]. In these fields, there are many interacting entities and hence a tremendous number of potential interactions. Identifying general rules, if any, that govern the form of these interactions might be important for develo...

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