Scopul nostru este sprijinirea şi promovarea cercetării ştiinţifice şi facilitarea comunicării între cercetătorii români din întreaga lume.
The main characteristics (plant diameter, number of spine/areoles and length of spines) of 16 cactus hybrids were analysed and the genetic variability and broad-sense heritability was studied. The descendants were obtained through a cyclic cross-pollination pattern, with the parental forms chosen based on aesthetic considerations. Cross-pollination among Rebutia senilis × Aylostera muscula, Rebutia tarvitaensis × Aylostera muscula, Aylostera flavistyla
Read moreThe study aims to carry out an analysis from demographic perspective for the city of Arad during the years 1767-1768. It is based on two documents that contain mainly statistical data with which it is possible to emphasize aspects related to some demographical behaviour in Arad. Information about the deceased, newborns and marriages registered, about the share of different ethnicities and confessions help us to outline the image of Arad, in which,
Read moreAt the beginning of the eighteenth century, Arad County contained only 25 localities in the north of Mureş River, and in the middle of the century, the administrative unit was extended by incorporating two districts of Zarand County, which would then be abolished. We made calculations on population from Arad County in its extended administrative form, but also including in these calculations the Serbian militaries' families, who, at least until
Read moreThe article offers a brief overview of the administrative-territorial organization and reorganization in the former county of Arad. Old medieval boundaries have known significant changes after the installation of Habsburg rule. Political, social and military reasons determined the imperial authorities to make several reorganizations of the area. Institutions were designed to ensure proper functioning of the county, but also contributed to the upgrade
Read moreWe introduce an object-based method to automatically classify topography from SRTM data. The new method relies on the concept of decomposing land-surface complexity into more homogeneous domains. An elevation layer is automatically segmented and classified at three scale levels that represent domains of complexity by using self-adaptive, data-driven techniques. For each domain, scales in the data are detected with the help of local variance and segmentation
Read moreIn this paper we describe an interesting approach to error prediction illustrated by experimental results. The application consists of monitoring the activity for the web servers in order to collect the specific data. Predicting an error with severe consequences for the performance of a server (the result of which is that its functionality becomes totally inaccessible or hard to access for clients) requires measuring the capacity of a server at any
Read moreIn this paper we propose a reliable protocol for controlling a robots network. The RRCP is not just a protocol for Internet robot communication but also a complete software package. We illustrate the usage of RRCP on a Khepera III robots network. RRCP is designed over an infrastructure based on Web services. By adopting the RRCP, several robots can be operated using the same commands. For example, several robots by different types, supporting this
Read moreRecently, a novel type of stromal cell - the telocytes (TC) - was identified in mouse trachea. These cells are known to possess the ultrastructural characteristics which support their role in intercellular signaling. We found TC in all stromal compartments of the tracheal wall. TC with long prolongations(telopodes, Tp) were lining longitudinally the collagen bundles, and were serially arranged (end-to-end connections of Tp were found). Noteworthy,
Read moreMutations in genes essential for genome maintenance during meiosis can result in severe disruptions to spermatogenesis and subsequent low fertility and/or birth defects in mammals. The mammalian homolog of yeast plays a critical role in somatic cell repair in mice. Here, we show that this critical function extends to mammalian germ cells, by examining the effects of a Btbd12 gene disruption in mice. Btbd12 mutant mice show severely reduced fertility,
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