Influence of the carbon and the titanium sublayers on the eletrophysical preporties of the thin film system ALN/SI

The carbon (C) and titanium (Ti) ions were implanted onto the surface of the silicon (Si), and the thin films of aluminum nitride (AlN) were prepared on Si(100) substrate by magnetron sputtering after the implantations. The compositions of these thin film systems were studied by optical microscopy and Raman spectroscopy, and the surface conductivity of those samples were measured. It was indicated that the implanted C and Ti ions did have made a difference to the electro physical properties of the systems AlN/Si

Social and individual features affecting natal dispersal in the colonial Lesser Kestrel

Causes of natal dispersal were studied in an isolated population of the migratory, facultatively colonial Lesser Kestrel (Falco naumanni) in northeastern Spain. During a seven-year study, we gathered information on natal dispersal of 751 individuals and on 24 explanatory variables that evaluated individual traits, conspecific cues in terms of colony size, and different ecological and populational features. We examined separately whether or not individuals changed colonies and how far they moved. Dispersal from the natal colony was high (83%), and dispersers covered a median distance of 7225 m (range 112-136 500 m). The probability of natal dispersal decreased with the size of the natal colony and with the distance to the nearest colony, but not with the distance to unoccupied buildings, in the year of recruitment. Moreover, the shorter the distance to the nearest colony, the shorter the distances that individuals dispersed, particularly to large colonies (>10 pairs). These results support the conspecific attraction hypothesis. Accordingly, the probability of recruiting in the natal colony increased with the proportion of philopatric adults, although beyond a threshold individuals were prevented from recruiting by the more dominant adults in a despotic way. The timing of arrival from the wintering grounds was positively related to the probability of colony change, especially in males. To the extent that this variable is related to the phenotypic quality of individuals, it reinforces the idea that natal dispersal is shaped by intraspecific competition in crowded colonies. Males showed lower frequencies of colony change and dispersed shorter distances than did females, as explained by the different role of the sexes in nest acquisition and defense. Our results indicate that natal dispersal is an evolutionarily labile trait simultaneously influenced by ecological, social, and individual features both within and between populations.Peer Reviewe

The European Network for Translational Research in Atrial Fibrillation (EUTRAF): objectives and initial results.

Atrial fibrillation (AF) is the most common sustained arrhythmia in the general population. As an age-related arrhythmia AF is becoming a huge socio-economic burden for European healthcare systems. Despite significant progress in our understanding of the pathophysiology of AF, therapeutic strategies for AF have not changed substantially and the major challenges in the management of AF are still unmet. This lack of progress may be related to the multifactorial pathogenesis of atrial remodelling and AF that hampers the identification of causative pathophysiological alterations in individual patients. Also, again new mechanisms have been identified and the relative contribution of these mechanisms still has to be established. In November 2010, the European Union launched the large collaborative project EUTRAF (European Network of Translational Research in Atrial Fibrillation) to address these challenges. The main aims of EUTRAF are to study the main mechanisms of initiation and perpetuation of AF, to identify the molecular alterations underlying atrial remodelling, to develop markers allowing to monitor this processes, and suggest strategies to treat AF based on insights in newly defined disease mechanisms. This article reports on the objectives, the structure, and initial results of this network

Оценка инвестиционной деятельности электроэнергетической компании

Объектом исследования является электроэнергетическая компания ПАО «ТРК». Предметом исследования выступают оценка эффективности инвестиций и инвестиционная деятельность предприятий электроэнергетики. Цель работы - анализ показателей оценки эффективности инвестиционной деятельности и разработка рекомендаций по совершенствованию оценки инвестиционной деятельности на примере компании ПАО «Томская распределительная компания».The object of this study is to electric power company PJSC "TRK". The subject of research are the evaluation of the effectiveness of investments and investment activity of the enterprises of electric power industry. Purpose - analysis of indicators for assessing the effectiveness of investment and development of recommendations to improve the assessment of investment activity on the example of the company PJSC "Tomsk Distribution Company"

Расчет затрат сер-верной платформы в поддержке стандарта witsml v 1.4.1. для одной компании

Выпускная квалификационная работа 1 с., 1 рис., 1 табл., 1 источников, 1 прил.Final qualifying work 1 p., 1 fig., 1 tab., 1 sources 1 adj