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تعداد نتایج: 435 فیلتر نتایج به سال:
Vibrio parahaemolyticus is a leading cause of seafood-related gastroenteritis and is also an autochthonous member of marine and estuarine environments worldwide. One-hundred seventy strains of V. parahaemolyticus were isolated from water and plankton samples collected along the Georgian coast of the Black Sea during 28 months of sample collection. All isolated strains were tested for presence o...
Phylogenetic relationships among five species of Alosa (Alosa maeotica, A. tanaica, A. caspia, A. immaculata and A. fallax nilotica) was examined with sequence analyses of mtDNA ND5/6 region. In pairwise comparision, the highest genetic differences were observed between A. caspia and A. tanaica (0.691), and lowest between A. maeotica and A. tanaica (0.491). In minimum evolution tree, two phylog...
Sea anemones produce a myriad of toxic peptides and proteins of which a large group acts on voltage-gated Na+ channels. However, in comparison to other organisms, their venoms and toxins are poorly studied. Most of the known voltage-gated Na+ channel toxins isolated from sea anemone venoms act on neurotoxin receptor site 3 and inhibit the inactivation of these channels. Furthermore, it seems th...
This paper studies delay-constraint topology control (DTC) in wireless sensor networks. That is, the delay of transmission is guaranteed through topology control. This problem has been proved to be NP-Completeness, and the previous works are in-adequate and lack of the theoretical analysis. In this paper, we present the DTCP algorithm with the minimal increased-energy method. We analyze that th...
Autotrophic denitrification was measured in the southwestern coastal Black Sea, where the Bosporus Plume injects oxidized chemical species (especially O(2) and [Formula: see text]) into the oxic, suboxic, and anoxic layers. Prominent oxygen intrusions caused an overlap of [Formula: see text] and sulfide at the same station where autotrophic denitrification activity was detected with incubation ...
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We have examined mitochondrial DNA (mtDNA) variation in samples of the mussel Mytilus galloprovincialis from the Black Sea, the Mediterranean and the Spanish Atlantic coast by scoring for presence or absence of cleavage at 20 restriction sites of a fragment of the COIII gene and at four restriction sites of the 16S RNA gene. This species contains two types of mtDNA genomes, one that is transmit...
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