91 research outputs found
The size and age composition of roach Rutilus rutilus (L.) at the upper part of the Kuibyshev reservoir Volga reach
© 2016,International Journal of Pharmacy and Technology. All rights reserved.The size-and-age structure as well as indexes of the linear roach growth of the Volga upper reach of the Kuibyshev reservoir during 2010-2014 are considered. Material was gathered during control fishery with stationary nets. It is established that in the catch female small fries prevailed. Low level of average length indexes and the relative simplified nature of age structure around research reflect instability of population reproduction and high level of fishing pressure. The reconstructed indicators of the linear growth of roach on materials 2013 and 2014 years were substantially lower,both on different sites of the Kuibyshev reservoir,and on materials concerning the Volga River before the reservoir foundation. It is the result of the deterioration tendency continuation in roach growth in the Volga reach revealed earlier
Formation of 24Mg* in the Splitting of 28Si Nuclei by 1-GeV Protons
The 28Si(p, p' gamma)24Mg reaction has been studied at the ITEP accelerator
by the hadron-gamma coincidence method for a proton energy of 1 GeV. Two
reaction products are detected: a 1368.6-keV gamma-ray photon accompanying the
transition of the 24Mg* nucleus from the first excited state to the ground
state and a proton p' whose momentum is measured in a magnetic spectrometer.
The measured distribution in the energy lost by the proton in interaction is
attributed to five processes: the direct knockout of a nuclear alpha cluster,
the knockout of four nucleons with a total charge number of 2, the formation of
the DeltaSi isobaric nucleus, the formation of the Delta isobar in the
interaction of the incident proton with a nuclear nucleon, and the production
of a pi meson, which is at rest in the nuclear reference frame. The last
process likely corresponds to the reaction of the formation of a deeply bound
pion state in the 28P nucleus. Such states were previously observed only on
heavy nuclei. The cross sections for the listed processes have been estimated.Comment: 14 pages, 3 figures submitted to JETP Letter
Comparison of printed glycan array, suspension array and ELISA in the detection of human anti-glycan antibodies
Anti-glycan antibodies represent a vast and yet insufficiently investigated subpopulation of naturally occurring and adaptive antibodies in humans. Recently, a variety of glycan-based microarrays emerged, allowing high-throughput profiling of a large repertoire of antibodies. As there are no direct approaches for comparison and evaluation of multi-glycan assays we compared three glycan-based immunoassays, namely printed glycan array (PGA), fluorescent microsphere-based suspension array (SA) and ELISA for their efficacy and selectivity in profiling anti-glycan antibodies in a cohort of 48 patients with and without ovarian cancer. The ABO blood group glycan antigens were selected as well recognized ligands for sensitivity and specificity assessments. As another ligand we selected P1, a member of the P blood group system recently identified by PGA as a potential ovarian cancer biomarker. All three glyco-immunoassays reflected the known ABO blood groups with high performance. In contrast, anti-P1 antibody binding profiles displayed much lower concordance. Whilst anti-P1 antibody levels between benign controls and ovarian cancer patients were significantly discriminated using PGA (p = 0.004), we got only similar results using SA (p = 0.03) but not for ELISA. Our findings demonstrate that whilst assays were largely positively correlated, each presents unique characteristic features and should be validated by an independent patient cohort rather than another array technique. The variety between methods presumably reflects the differences in glycan presentation and the antigen/antibody ratio, assay conditions and detection technique. This indicates that the glycan-antibody interaction of interest has to guide the assay selection
Byssoloma subdiscordans (Nyl.) P. James на Дальнем Востоке России
В данной работе Byssoloma subdiscordans (Nyl.) P. James впервые приводится для юга Дальнего Востока России. Дано анатомо-морфологическое описание вида на основе изучения собранных образцов. Описание соответствует описанию вида, сделанному ранее в работах R. Santesson (1952), R. Lücking (2008). Вид найден на юге о-ва Сахалин и в Хабаровском крае. Образцы Byssoloma subdiscordans собраны в сообществах с повышенной влажностью. Отмечено, что в умеренном поясе на Дальнем Востоке вид встречается так же, как и в Европе, главным образом, на тонких веточках хвойных деревьев
New records of lichens from the Russian Far East. III. Lichens of coastal habitats
Aspicilia subepiglypta, Buellia subdisciformis, Calogaya arnoldii, Flavoplaca flavocitrina, Lecanora swartzii, and Lecidella scabra are reported as new records for the Russian Far East. Rinodina gennarii and Lecidella asema are newly recorded for the mainland of the Russian Far East. Rare lichens Cladonia subconistea and Leptotrema litophila are newly found in coastal habitats; Caloplaca atroflava is new for Sakhalin Island, and Umbilicaria vellea is new for Kuril Islands.Peer reviewe
Genus Rinodina (Ach.) Gray in the south of Russian fareast
The study of lichen genus Rinodina was conducted in the territory of Primorskiy and Khabarovskiy krai, Amurskaya, Sakhalinskaya oblast’ and Japan. Only 22 species of Rinodina had been known from this territory prior to our research. As a result, a list of Rinodina in the region comprises 39 species. 17 of them were new to Russian Far East and 12 were new to Russia. 35 % of species have Far Eastern — North American disjunction, 13 % are distributed in Eastern Asia. The rest of species are known from Southern and Northern hemisphere or from the temperate zone of the Holarctic
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