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Microbial colonization of chasmoendolithic habitats in the hyper-arid zone of the Atacama Desert
J. DiRuggiero,J. Wierzchos,C. K. Robinson,T. Souterre
Biogeosciences Discussions , 2012, DOI: 10.5194/bgd-9-15603-2012
Abstract: Efforts in searching for microbial life in the driest part of Atacama Desert, Chile, revealed a small number of lithic habitats that can be considered as environmental refuges for life. In this study, we describe for the first time chasmoendolithic colonization of fissures and cracks of rhyolite-gypsum and calcite rocks collected in the hyper-arid zone of the desert. The use of high-throughput sequencing revealed that the Atacama rock communities comprised a few dominant phylotypes and a number of less abundant taxa representing the majority of the total community diversity. The chasmoendolithic communities were dominated by Chroococcidiopsis species cyanobacteria and supported a number of novel heterotrophic bacteria. Micro-climate data and geomorphic analysis of the mineral substrates suggested higher water availability in the calcite rocks in the form of enhanced water retention in the complex network of cracks and fissures of these rocks as well as increased occurrence of liquid water in the form of dewfall. These characteristics were associated with a diverse community of phototrophic and heterotrophic bacteria in the calcite chasmoendolithic ecosystem. This study is another example of the diversity of adaptive strategies at the limit for life and illustrates that rock colonization is controlled by a complex set of factors.
Microbial colonisation of chasmoendolithic habitats in the hyper-arid zone of the Atacama Desert
J. DiRuggiero, J. Wierzchos, C. K. Robinson, T. Souterre, J. Ravel, O. Artieda, V. Souza-Egipsy,C. Ascaso
Biogeosciences (BG) & Discussions (BGD) , 2013,
Abstract: Efforts in searching for microbial life in the driest part of Atacama Desert, Chile, revealed a small number of lithic habitats that can be considered as environmental refuges for life. In this study, we describe for the first time chasmoendolithic colonisation of fissures and cracks of rhyolite-gypsum and calcite rocks collected in the hyper-arid zone of the desert. The use of high-throughput sequencing revealed that the Atacama rock communities comprised a few dominant phylotypes and a number of less abundant taxa representing the majority of the total community diversity. The chasmoendolithic communities were dominated by Chroococcidiopsis species cyanobacteria and supported a number of heterotrophic bacterial lineages. Micro-climate data and geomorphic analysis of the mineral substrates suggested higher water availability in the calcite rocks in the form of enhanced water retention in the complex network of cracks and fissures of these rocks as well as increased occurrence of liquid water in the form of dewfall. These characteristics were associated with a diverse community of phototrophic and heterotrophic bacteria in the calcite chasmoendolithic ecosystem. This study is another example of the diversity of adaptive strategies at the limit for life and illustrates that rock colonisation is controlled by a complex set of factors.
REGULARYFRAMWORK AND LEGAL BASE OF ELECTRONIC DOCUMENT CIRCULATION НОРМАТИВНО-ПРАВОВА БАЗА ЕЛЕКТРОННОГО ДОКУМЕНТООБ ГУ
T.Г. Омельченко,Н.А. Джанджгава
Information Technologies and Learning Tools , 2010,
Abstract: The general characteristic of legal base of electronic document circulation is presented in the article. It legislatively regulates the relations which connected with the information and information communication technologies. There is presented the list of the basic acts of regulation of sphere of information relations. У робот подано загальну характеристику нормативно-правово бази, яка законодавчо регулю в дносини, пов'язан з нформац ю, нформац йно-комун кац йними технолог ями, представлено перел к основних законодавчих акт в регулювання сфери нформац йних в дносин.
THE APPROACH OF COMPETENCE AT THE STUDY OF MATHEMATICAL INFORMATICS IN A PEDAGOGICAL UNIVERSITY КОМПЕТЕНТН СНИЙ П ДХ Д ПРИ ВИВЧЕНН МАТЕМАТИЧНО НФОРМАТИКИ” У ПЕДАГОГ ЧНОМУ УН ВЕРСИТЕТ
T.П. Кобильник
Information Technologies and Learning Tools , 2010,
Abstract: In the paper the approach of competence at the study of mathematical informatics in a pedagogical university is considered. The special attention is paid to forming of professional pedagogical and educational-cognitive competences. The example of tasks on which formed a competence at the study of mathematical informatics is resulted. У статт розглянуто компетентн сний п дх д при вивченн математично нформатики у педагог чному ун верситет . Особливу увагу звернено на формування профес йно педагог чно та навчально-п знавальну компетентност . Наведено приклад завдань, як сприяють формуванню компетентностей при вивченн математично нформатики.
SYSTEM OF THE AUTOMATIC DOCUMENT PROCESSING IN SHELL OF BASE SOFTWARE СИСТЕМА АВТОМАТИЗОВАНОГО ДОКУМЕНТООБ ГУ В ОБОЛОНЦ БАЗОВОГО ПРОГРАМНОГО ЗАБЕЗПЕЧЕННЯ
В.Ю. Биков,T.О. Дерба
Information Technologies and Learning Tools , 2010,
Abstract: In the article the automatic system of the document processing, created with use of Microsoft Access – a component part of Microsoft Office is offered. This system can be used at school and Institutions of education with one computer or with system of 15 ones connecting in the local net. У статт запропоновано для ознайомлення автоматизовану систему документооб гу, створену з використанням Microsoft Access – складово частини Microsoft Office. Ця система може використовуватися в школах установах осв тньо галуз на одному комп’ютер чи на систем до 15 комп’ютер в, пов’язаних локальною мережею.
MODERN APPROACHES AND PRINCIPLES OF PORTAL BUILDING ТЕХНОЛОГ ЧН ОСНОВИ СТВОРЕННЯ ТА П ДТРИМКИ ПОРТАЛ В
Н.Т. Задорожна,T.Г. Омельченко
Information Technologies and Learning Tools , 2010,
Abstract: The paper presents the analysis of modern state of development and use of Internet portals, the peculiarities of approaches to creation and introduction of portals in educational system are described. В робот анал зуються принципи розробки та використання нтернет-портал в, описуються особливост п дход в до створення та впровадження портал в у систему осв ти.
REVIEW OF MODERN TOOLS OF INFORMATION AND COMMUNICATION TECHNOLOGIES IN THE MANAGEMENT OF SECONDARY EDUCATION ОГЛЯД СУЧАСНИХ ЗАСОБ В НФОРМАЦ ЙНО-КОМУН КАЦ ЙНИХ ТЕХНОЛОГ Й В УПРАВЛ НН СЕРЕДНЬОЮ ОСВ ТОЮ
T.О. Дерба
Information Technologies and Learning Tools , 2010,
Abstract: There are presented the up-to-date situation with information and communication technology use in the management of secondary education; information and communication technologies (ICT), that practically used in educational establishments are considered. There are some examples of educational institutions using IСT for the automation of management. У статт показаний зр з сучасного стану використання нформац йно-комун кац йних технолог й в управл нн середньою осв тою, розглянут нформац йно-комун кац йн технолог ( КТ), як на практиц використовуються в загальноосв тн х закладах, наведен в дгуки навчальних заклад в, як використовують КТ для автоматизац управл ння
EVALUATION OF INTEGRALS OF FUNCTIONS OF COMPLEX VARIABLE BY USING THE RESIDUES IN COMPUTER MATHEMATICS SYSTEMS ОБЧИСЛЕННЯ НТЕГРАЛ В В Д ФУНКЦ Й КОМПЛЕКСНО ЗМ ННО ЗА ДОПОМОГОЮ ЗАЛИШК В В СИСТЕМАХ КОМП’ЮТЕРНО МАТЕМАТИКИ
Н.Д. Парфьонова,T.В. Клочко
Information Technologies and Learning Tools , 2010,
Abstract: The article describes the methodology of teaching one of the major topics of the course of complex analysis using the system Maple. It also demonstrates how the use of computer mathematics systems facilitates the evaluation of students by the teacher during organization of independent work. В статт наведено методику викладання мабуть одн з найважлив ших тем курсу комплексного анал зу з використанням системи Maple; демонстру ться, як використання систем комп’ютерно математики полегшу викладачев оц нювання роботи студент в та при орган зац х самост йно роботи.
USE OF VEB 2.0 SOCIAL SERVICES FOR PLANNING OF INFORMATIVE SYSTEMS ВИКОРИСТАННЯ СОЦ АЛЬНИХ СЕРВ С В ВЕБ 2.0 ДЛЯ ПРОЕКТУВАННЯ НФОРМАЦ ЙНИХ СИСТЕМ
T.Г. Омельченко
Information Technologies and Learning Tools , 2010,
Abstract: In the article the definitions and the characteristic of Web 2.0 social networks and services are presented as well as tendencies of their development, approaches of use of Web 2.0 social services and technologies in information systems are considered and analyzed. Requirements to technological maintenance of information system “Planning of scientific researches in NPA of Ukraine” are analyzed. В робот представлен визначення характеристика соц альних мереж послуг Веб 2.0 та тенденц хнього розвитку, розглянуто проанал зовано напрямки використання соц альних послуг та технолог й Веб 2.0 в нформац йних системах. Проанал зовано вимоги до технолог чного забезпечення нформац йно системи “Планування наукових досл джень в АПН Укра ни”.
In memoriam: Люба Огненова-Маринова (1922–2012)
Tотко Стоянов
Bulgarian e-Journal of Archaeology , 2012,
Abstract: In memoriam: Luba Ognenova-Marinova (1922–2012)Totko Stoyanov
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