MOVPE growth and characterisation of ZnO properties for optoelectronic applications

ZnO, Epitaxy, Metal organic vapor phase epitaxy, MOCVD, CVD, Semiconductor, Optoelectronics, X-ray diffraction, Cathodoluminescence, MicroelectronicsMagdeburg, Univ., Fak. für Naturwiss., Diss., 2007von Nikolay OleynikZsfassung in dt. Sprach

Unification of surgical and related disciplines for effective specialist training

The results indicate increase objectivity in the control of knowledge from teachers and students to increase interest in teach a subject that is allowed to integrate in medical education and, in future, in practical public health of Ukraine and other world

Unification of Surgical and Related Disciplines for Effective Specialist Training

: Improving the quality in any sphere of life – this is main goal of any innovation. Training of general practitioners is a major task of medical higher educational institution, and therefore the proper teaching of surgery in a whole range of other disciplines will create conditions for quality medical practice doctor in the future, and should meet the requirements of the integration process of the educational systems of other countries. This will improve the quality of learning disciplines among the students of enrolled this year, and develop common indicators for professionally-oriented exam after 6 (six) year of study to get a general level of theoretical and practical knowledge and skills. Based on the standard curriculum and learning plan was created the working program that regulates specific activities by teachers and students to achieve as a theoretical and practical knowledge required for this sequence of technological resources and action items using the creditmodule system. The calculated threshold standards levels of education (sum of estimates after the module translates the 200-point scale ECTS) and communicated to students to stimulate their enthusiasm for learning to the maximum level and effective specialist training. The results indicate increase objectivity in the control of knowledge from teachers and students to increase interest in teach a subject that is allowed to integrate in medical education and, in future, in practical public health of Ukraine and other world

Features of the karyotype of North Caucasus Ayrshire dairy cattle population: defects in reproductive functions

One of the ways of improving the genotypes of dairy cattle in Russia is to increase the proportion of the Ayrshire breed, which can be justly claimed to be one of the best dairy breeds in the world. However, due to the prevalence of large-scale breeding technologies, which involves the use of a limited contingent of dairy cattle bulls, including but not limited to the Ayrshire breed, the emergence of new-born calves with various anomalies, including chromosomal, which commonly have a hereditary basis attributable to gene mutations have been observed. Given that the bulk of these anomalies are acquired by recessive inheritance, they may not always manifest themselves in the phenotype and thus represent a hidden genetic load. In recent years, the significance of cytogenetic analysis and karyotyping is becoming increasingly important, not only when considering the theoretical assumptions, but also when solving applied problems aimed at preventing damage to agricultural production. This article presents the results of the cytogenetic analysis of Ayrshire cattle affected by reproductive problems. The following has been established: an absence of changes in the diploid set of the investigated dairy cattle (2n = 60); the presence of aberrant cells, whose frequency of occurrence amounted to 3.6% in the population of 440 head (number of aberrations per aberrant cell researched – 0.036 / 1.0); the absence of reciprocal translocations in the karyotype of the investigated population. It is suggested that the existing Ayrshire sires Hannulan Yaskiyri, Riihiviidan Urho Errant, O.R.Lihting and their descendants do not have a genetic load of chromosomal abnormalities

Screening of complex vertebral malformation (CVM) and bovine leukocyte adhesion deficiency (BLAD) in the Ayrshire cattle breed in the North Caucasus

The Ayrshire dairy breed is renowned for producing large quantities of high quality milk and, therefore, is frequently used for crossbreeding. However, various hereditary anomalies caused by gene mutations have been recently recorded in calves produced by some Ayrshire sires. Most of these anomalies were shown to have a recessive inheritance pattern, thus imposing a threat of unpredictable dramatic changes in cattle genotypes under such factors as genetic drift, selection and inbreeding. The purpose of this study was to examine the susceptibility of the Ayrshire cattle bred in the North Caucasus to such hereditary abnormalities as complex vertebral malformation (CVM) and bovine leukocyte adhesion deficiency (BLAD). The investigation was carried out on 16 cows with various phenotype and reproduction disorders that were selected based on a three-year veterinary observation of 440 livestock animals. The target group cows were generally the descendants of Hannulan Yaskiyri, Riihiviidan Urho Errant and O.R. Lihting. The results demonstrated that no animals under study were the carriers of these genetic disorders, which proved the mutant alleles of BLAD and CVM to be absent from the Ayrshire cattle livestock bred in the North Caucasus. Therefor e, the sires of these cattle can be successfully used for breeding