340 research outputs found
Corporate Librarianship in the ODINECET Group (EURASLIC)
This paper focused on the advantages of joint librarian projects and international collaboration among the aquatic libraries, which are highly specialized. One of the outstanding features of the information environment during the last decades is the constant growth of e-libraries, or even separate digital collections. Nowadays any library is willing to expand the sphere of its informational activities either within the country or abroad; librarians attract users by promoting their services and providing (open) access to their collections via digitization. In so doing, libraries are more productive, useful and user-friendly. Libraries are becoming more integrated into the world of e-science via various international programs. Examples of certain successful international librarian partnerships are given. There have already been two institutional repositories (IBSS, Sevastopol, Crimea, and RuFIR, Russian Fishery Industry Repository, Moscow, Russia) and one corporate repository CEEMaR, launched as part of the ODINECET Program. The
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paper emphasizes the pluses and minuses of the CEEMaR e-Repository, the IODE product of joint efforts of 18 libraries from five countries of the Central and Eastern Europe Region, against institutional repositories. Besides Open Access resources, worldwide corporate cooperation has brought document cataloguing to a completely different level. Electronic versions of bibliographic information has stimulated the creation of new forms of collaboration in bibliographic data exchange, leading to making the cataloguing process cheaper, raising the issue of quality control while compiling a bibliographic record, and uniting the libraries in their mutual efforts to create regulating documents of the international standards. The Union Catalogue of the ODINECET Group is a common corporate resource, gathering information on the aquatic periodicals’ holdings from the Central and Eastern Europe libraries. The works (either factual or technical) have also revealed some problems that are yet to be solved, with a unique cataloguing standard among them. The challenging task for catalogue compilers will be to unite certain bibliographic metadata modes, classification descriptors and keywords. Current activities and future perspectives of the ODINECET Union Catalogue are reported on
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ParaHox gene expression in larval and postlarval development of the polychaete Nereis virens (Annelida, Lophotrochozoa).
RIGHTS : This article is licensed under the BioMed Central licence at http://www.biomedcentral.com/about/license which is similar to the 'Creative Commons Attribution Licence'. In brief you may : copy, distribute, and display the work; make derivative works; or make commercial use of the work - under the following conditions: the original author must be given credit; for any reuse or distribution, it must be made clear to others what the license terms of this work are.BACKGROUND: Transcription factors that encode ANTP-class homeobox genes play crucial roles in determining the body plan organization and specification of different organs and tissues in bilaterian animals. The three-gene ParaHox family descends from an ancestral gene cluster that existed before the evolution of the Bilateria. All three ParaHox genes are reported from deuterostomes and lophotrochozoans, but not to date from any ecdysozoan taxa, and there is evidence that the ParaHox genes, like the related Hox genes, were ancestrally a single chromosomal cluster. However, unlike the Hox genes, there is as yet no strong evidence that the ParaHox genes are expressed in spatial and temporal order during embryogenesis. RESULTS: We isolated fragments of the three Nereis virens ParaHox genes, then used these as probes for whole-mount in situ hybridization in larval and postlarval worms. In Nereis virens the ParaHox genes participate in antero-posterior patterning of ectodermal and endodermal regions of the digestive tract and are expressed in some cells in the segment ganglia. The expression of these genes occurs in larval development in accordance with the position of these cells along the main body axis and in postlarval development in accordance with the position of cells in ganglia along the antero-posterior axis of each segment. In none of these tissues does expression of the three ParaHox genes follow the rule of temporal collinearity. CONCLUSION: In Nereis virens the ParaHox genes are expressed during antero-posterior patterning of the digestive system (ectodermal foregut and hindgut, and endodermal midgut) of Nereis virens. These genes are also expressed during axial specification of ventral neuroectodermal cell domains, where the expression domains of each gene are re-iterated in each neuromere except for the first parapodial segment. These expression domains are probably predetermined and may be directed on the antero-posterior axis by the Hox genes, whose expression starts much earlier during embryogenesis. Our results support the hypothesis that the ParaHox genes are involved in antero-posterior patterning of the developing embryo, but they do not support the notion that these genes function only in the patterning of endodermal tissues
Hox gene expression during postlarval development of the polychaete Alitta virens
BACKGROUND: Hox genes are the family of transcription factors that play a key role in the patterning of the anterior-posterior axis of all bilaterian animals. These genes display clustered organization and colinear expression. Expression boundaries of individual Hox genes usually correspond with morphological boundaries of the body. Previously, we studied Hox gene expression during larval development of the polychaete Alitta virens (formerly Nereis virens) and discovered that Hox genes are expressed in nereid larva according to the spatial colinearity principle. Adult Alitta virens consist of multiple morphologically similar segments, which are formed sequentially in the growth zone. Since the worm grows for most of its life, postlarval segments constantly change their position along the anterior-posterior axis. RESULTS: We studied the expression dynamics of the Hox cluster during postlarval development of the nereid Alitta virens and found that 8 out of 11 Hox genes are transcribed as wide gene-specific gradients in the ventral nerve cord, ectoderm, and mesoderm. The expression domains constantly shift in accordance with the changing proportions of the growing worm, so expression domains of most Hox genes do not have stable anterior or/and posterior boundaries. In the course of our study, we revealed long antisense RNA (asRNA) for some Hox genes. Expression patterns of two of these genes were analyzed using whole-mount in-situ hybridization. This is the first discovery of antisense RNA for Hox genes in Lophotrochozoa. CONCLUSION: Hox gene expression in juvenile A. virens differs significantly from Hox gene expression patterns both in A. virens larva and in other Bilateria. We suppose that the postlarval function of the Hox genes in this polychaete is to establish and maintain positional coordinates in a constantly growing body, as opposed to creating morphological difference between segments
Church of Saint John the Baptist in Kamala
This article presents an analysis of the historical and cultural aspects of the origin and development of one of the monuments of the church of St. John the Baptist - Roman Catholic church in the agro Kamai Postavy district, Vitebsk region, one of the oldest Catholic churches in Belarus. The temple is unique in its architecture as well as the style and performance combines elements of Gothiс, Renaissance and baroque. Name the creator of the temple is still unknown. This church served not only the house of God, but also a military fortress. Until now, the main decoration of the walls are thick core Swedish Northern War. The Swedes, who precipitated the temple, this small fortress and did not give up. Over the lifetime of the temple (about 400 years), it has never been closed
Tyzenhaus palace in Postavy
This article presents an analysis of the historical, cultural, architectural and planning aspects of the creation and history of one of the most unique architectural monuments of Postavy town – Tizengauzen Palace, which building lasted from 1788 and all the 1 st half of the XIX century. This is one of the few fully extant monuments of history and culture in Postavy district
SOCIAL INTERACTION OF LARGE BUSINESSES AS A SECURITY CONDITION OF ITS OPERATION AND DEVELOPMENT IN THE NORTHERN REGION
Purpose: The aim of the research is to identify social interaction of large businesses as a security condition of its operation and development in the northern region.
Methodology: This is descriptive-analytic research whose data are obtained through library studies and analytical resources. Data analysis is based on content analysis and analytical comparison.
Result: Results showed that to improve the safety of large businesses in the Northern region continuous socially-oriented activities aimed at improving the quality of life of the population of the region of presence with the support of various social initiatives in the region of presence are required.
Applications: This research can be used for businessmen and developers.
Novelty/Originality: In this research, the model of social interaction of large businesses is presented in a comprehensive and complete manner
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