National University of Uzbekistan is the oldest and largest university of Uzbekistan; it has 13 schools. The university was founded in 1918 as Turkestan People's University, with 1,200 students; in 1920 it was reorganized as Turkestan State University , and in July 1923 it was renamed the First Central Asian State University , a name it retained through the end of the 1950s. In 1960 the name was changed to the V.I. Lenin Tashkent State University . With the independence of Uzbekistan it became the National University of Uzbekistan.During World War II many academics were removed from cities in the western USSR to Central Asia, and Tashkent, along with Alma-Ata, was favored for its European-style infrastructure and the presence of a significant number of Russian-speakers; a group of professors from Moscow protested being transferred from Tashkent to Ashgabat. Wikipedia.
Ismailov R.M.,National University of Uzbekistan
Medical Hypotheses | Year: 2012
Global geographic disparities in stroke mortality rates are substantial. In the US alone, higher stroke mortality rates are reported in the Southeast part particularly along the coastline while lower rates have been observed in the Mountain region. The phenomenon has been called the "stroke belt" Although many theories have attempted to explain such nonrandom distribution of stroke mortality rates, no conclusive explanations have been drawn so far. I hypothesize that this nonrandom stroke distribution is related to regional differences in individual levels of erythropoietin (EPO), a hormone, which production depends on the tissue hypoxia due to variation in altitude. If successful, future studies based on this hypothesis may open up new avenues for treatment of such an important health issue as stroke. More importantly, future studies based on this theory may shed the lights on the mechanism of stroke as well as other diseases which have nonrandom geographic distribution not only in the US but also internationally. © 2012 Elsevier Ltd.
Glazirin G.E.,National University of Uzbekistan
Austrian Journal of Earth Sciences | Year: 2010
Bavarian alpinist and researcher Gottfried Merzbacher discovered an ice-dammed lake in 1903 while trying to reach the mysterious Khan Tengri peak, located where Kyrgyzstan, Kazakhstan, and China meet. This lake, which was later named after him, is currently two lakes in the Northern Inylchek Valley. At an altitude of 3300 m and 3400 m above sea level (a.s.l.), these two lakes are known as Lower Lake Merzbacher and Upper Lake Merzbacher. Lower Lake Merzbacher is dammed by the Southern Inylchek Glacier and has had regular outbursts since the beginning of the 20th century. While these outbursts have been sporadically documented since 1902, neither the documentation nor the reliability of the reports has been consistent. Knowledge of many of the floods is known only from the oral or written contributions of mountaineers, glaciologists, and frontier guards. A small number of floods were measured at gauging stations downstream. Since it was not always recognized that these floods were the results of glacier lake outbursts, not many papers on this subject have been published in German, English or Russian journals. There were about 40 outbursts reported between 1902 and 2004, but only a few of them were eye witnessed. A number of geoscientific expeditions investigated glacier retreat and the mechanism of the (lower) lake's outburst through an englacial piping system of the Southern Inylchek Glacier. As the Inylchek River flows into the Tarim Basin, the flood waves endanger not only Kyrgyzstan but also China. This paper gives a short overview on the mechanism, magnitude, repetition rate and timing of Lake Merzbacher's outbursts. Of particular interest is the discovery that the outbursts have shifted statistically significantly, namely from September/October in the first half of the century to July/August in last few decades. It is presumed that this is due to the climate change. Future research on the impact of climate change on the Upper Inylchek Valley is supported by the Global Change Observatory "Gottfried Merzbacher", which opened in 2009 and was jointly planned by the Central Institute of Applied Geosciences (CAIAG, Bishkek, Kyrgyz Republic) and the German Research Center Potsdam (GeoForschungsZentrum - GFZ-Potsdam, Germany). The installation of ablation gauges, planned ice core drilling, and hydrometeorologic and seismologic stations will make it possible to assess the climatic and neotectonic development of the Central Tien Shan in general and to calculate the mass balance and quantification of the partly retreating Southern Inylchek Glacier in particular. This article "A Century of Investigations on Outbursts of the Ice-Dammed Lake Merzbacher" briefly summarizes observations and research conducted since 1903 and also documents the lake's regular outbursts.
Egamberdieva D.,National University of Uzbekistan
Plant, Soil and Environment | Year: 2011
Te abilities of Pseudomonas extremorientalis TSAU20 and P. chlororaphis TSAU13 to colonise and survive in the rhizosphere of common bean under saline conditions were studied. Four salinity levels (5.0, 7.5, 10.0, and 12.5 dS/m) were maintained in the gnotobiotic system using NaCl salt. Results showed that with increasing salt content root-tip colonization of both bacterial strains was reduced. Both bacterial treatments used in the study increased root and/or shoot length compared to non treated plants at each NaCl concentration tested, whereas shoot growth was not stimulated at high saline condition (12.5 dS/m). In conclusion, the results of this study indicated that P. extremorientalis TSAU20 and P. chlororaphis TSAU 13 have the ability to survive in ecologically stressed conditions, such as saline and nitrogen deficient soils, and may positively effect on plant growth of bean. High salinity inhibited their colonisation in the rhizosphere of bean and thus their stimulatory effect on plants was also reduced.
Egamberdieva D.,National University of Uzbekistan
Turkish Journal of Biology | Year: 2012
One of the natural reservoirs of potentially human-pathogenic bacteria is believed to be the rhizosphere. The aim of the present work was to test nontuberculous mycobacterium Mycobacterium phlei MbP18 for its ability to colonize the rhizosphere of wheat and to evaluate its effect on plant growth under saline conditions. In competitive wheat root tip colonization assays, M. phlei MbP18 showed poor competitive colonization of the wheat rhizosphere compared to the reference strain. The strain produced lipase, amylase, cellulase, and pectinase and grew well in the presence of high salt (up to 4% NaCl) and at high temperatures (up to 40 °C). It was also able to utilize a wide range of carbohydrates for growth. The strain produced indole-3-acetic acid and proved to be very efficient in promoting a significant increase in the shoot and root of wheat under saline conditions. In conclusion, the results of this study indicate that M. phlei MbP18 has beneficial effects on plant growth under saline conditions through its ability to produce different biologically active compounds such as cell wall-degrading enzymes and the phytohormone auxin. However, its competitive colonization abilities in the rhizosphere are poor. In light of this observation, attempts should be made to manage the rhizosphere in order to prevent colonization of the rhizosphere by pathogens. This will help remove mycobacteria from habitats where humans or animals can be exposed. © TÜBİTAK.
Khakimov R.M.,National University of Uzbekistan
Journal of Siberian Federal University - Mathematics and Physics | Year: 2014
In this paper under some conditions on parameters of the q-state Potts model on a Cayley tree of order k we prove existence of the periodic (non translation-invariant) Gibbs measures. Also we give a result about the number of such measures. © Siberian Federal University. All rights reserved.