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Exoemission spectroscopy of li and cu doped sodium fluorides irradiated with electron beams of ultra-high dose

Zamirgül KAZAKBAYEVA

Article | 2019 | European Journal of Natural History ( 5 )

The luminescence spectral properties of alkali metal fluorides and the influence of various impurity and intrinsic defects have been studied intensively for many years. However, research is still urgently needed on the mechanism of energy transfer to luminescence centers in thermostimulated processes, particularly in systems with pair activation. This is important not only for an understanding of the mechanisms of localization, migration, and relaxation of electronic excitations, but also in a particularly practical aspect - for the development of new, effective thermoluminophores, scintillators, and active optical media. In this ar . . .ea of research, the broad-band ionic dielectric NaF (Eg = 11.7eV) is noteworthy. A working substance NaF:Li,Cu has been proposed for thermoelectronic dosimetry of high-energy electron radiation. The results of thermally stimulated luminescence have been presented. The TSL and TSEE measurements were performed on an automated exo-emission spectrometer in a vacuum of ~ 10-4 Pa. It has been shown that NaF:Li,Cu can be used for Thermally Stimulated Exoelectron Emission (TSEE) dosimetry. The results of the study can be used to develop thermoluminescent dosimeters operating at low temperatures. NaF:Li,Cu dosimeters can be used for high-dose dosimetry of high-energy electron radiation (up to 10 MeV). Such dosimeters can be used in technology centres for the radiation modification of functional materials (metals, alloys, ceramics), as well as for sterilization of medical equipment and materials. Such dosimeters can be used in technology centres for the radiation modification of functional materials (metals, alloys, ceramics), as well as for sterilization of medical equipment and materials More less

COMPARATIVE CHARACTERISTICS OF COMPLIANCE WITH WHO RECOMMENDATIONS REGARDING INFECTION CAUSED BY CORONAVIRUS (COVID-19) AMONG STUDENTS (INCLUDING FOREIGN STUDENTS) OF THE MEDICAL FACULTY OF THE KYRGYZ-RUSSIAN SLAVIC UNIVERSITY

Ciparkül ABDIRAHMANOVA

Article | 2022 | European Journal of Natural History ( 2 )

COVID-19 is a new viral disease that differs from other diseases caused by coronaviruses. It is attributed to the group of quarantine and especially dangerous infections due to the ability to cause pandemic spread and high mortality. The COVID-19 pandemic was disastrous and had huge negative consequences for individuals, families, populations and communities around the world. There continues to be a risk of the return or repeat waves of COVID-19, and there is a need to constantly monitor and suppress the transmission of the virus among the population by taking appropriate measures. Citizens should protect themselves and others by ob . . .serving the necessary hygiene measures, that is, washing their hands, avoiding touching their face, and observing proper “respiratory etiquette”, social distance keeping individually, isolation in institutions or at home in case of illness, if necessary, reporting contact with a confirmed case and promoting the use of physical distancing measures. In this context, a study was conducted on the level of awareness of students and the implementation of preventive measures against the spread and transmission of SARS-CoV-2, recommended by WHO, among students in the 3rd year of the Medical Faculty of the B.N. Yeltsin Kyrgyz-Russian Slavic University, including students from India. Comparison is made between the faculties regarding the implementation of preventive measures against COVID-19 infection. A brief description of the epidemic process of COVID-19 is given More less

Investigation of reproduction and selection potential of Holstein breeding cattle in Kyrgyzstan

Nurlan MAMATOV | Aybek KARABAEV | Kadırbay ÇEKİROV

Article | 2017 | European Journal of Natural History ( 4 )

In this article, statistical results of selection characteristics and milk yields, live weight and reproduction characteristics of Holstein sheep breeds grown in Kyrgyzstan conditions are given according to their origins and ages. Parameters were calculated for milk yield and growth characteristics. For this purpose milk productivity, lactation and live weights of cattle were measured. Holstein cows were crossed with local races to improve productivity during milk productivity and lactation. As a result, there are significant variations in some yields in the animals raised. According to the results obtained, the live weights of Hols . . .tein cows raised in Kyrgyzstan were 505.4 kg, the first lactation milk yield was 4641.9 kg, the second lactation was 5082.4 kg and the third lactation was 5127.1 kg. In the same order, service period lengths were obtained as 119.2, 101.5 and 96.4 days. The coefficient of variation for the lactation yields was calculated as 6.04?% for live weights and 13.13, 14.78 and 17.47 for lactation milk yield, respectively. This coefficient was 38.82?%, 40.10?% and 54.41?% in terms of reproductive characteristics, respectively. It can be understood from these figures that it is understood that there is possibility to make progress by making selection in this herd. The results are presented in tabular form. Since Kyrgyzstan is a mountainous country, native animal breeds have also been adapted to these conditions. Local animal breeds have also been selected and raised by native scientists. Local races are grazed in the mountains and for this reason they have become adherent to harsh weather conditions. As a result of this article, it was determined that there is a significant variation in terms of breeding and milk yield characteristics and this is the result that can be evaluated in Holstein breeding in Kyrgyzstan More less

Conceptual Approach to Studying of the Kyrgyz Language

Burul SAGINBAYEVA

Article | 2019 | European Journal of Natural History ( 1 )

The various concepts of a concept “woman” in modern Kyrgyz literature is considered in this article. Are investigated a concept of a concept “Woman” of various genres of literature, namely: used in set phrases connected with the concept “woman”, proverbs sayings about “woman”, written and oral folk art, catchwords, etc. In this article are accurately and clearly described wisdom, beauty of the Kyrgyz women. The concept “the woman-mother” is given, the author defines a concept “woman” in traditions, customs, national trust, the Kyrgyz family, a social status. Also the author gives a concept of a concept “woman” in the advantage and a . . . shortcoming of the Kyrgyz women. Thus the author gave the national maintenance of the concepts “woman”. Therefore, there are all bases to conclude that the concept “woman” was investigated in various ways, namely – the family relation of women; through behavior of women – characteristic qualities which belong to mankind such as: wisdom, justice, skill, thrift, hospitality, purity. And if these human qualities were based universal general rules, and in the national maintenance of the concepts “woman” were proved that the woman has to become a mother; the woman in whom it is opened and all merits are shown, brings success, good luck, respect, abundance and prosperity More less

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