Comment on ``Conduction states in oxide perovskites: Three manifestations of Ti3+^{3 +} Jahn-Teller polarons in barium titanate''

In this comment to [S. Lenjer, O. F. Schirmer, H. Hesse, and Th. W. Kool, Phys. Rev. B {\bf 66}, 165106 (2002)] we discuss the electronic structure of oxygen vacancies in perovskites. First principles computations are in favour of rather deep levels in these vacancies, and Lenjer et al suggest that the electrons' interaction energy is negative, but data on electroconductivity are against.Comment: 2 pages, no figure

Digital agriculture informational resources in local and international databases

The article reviews informational resources on precision and digital agriculture in international cross-disciplinal and sectoral international and local databases. The databases Web of Science, Scopus, AGRIS (by FAO UN) and Engineering infrastructure of Agriculture, Rosinformagrotech, AGROS (by Central Scientific Agricultural Library) with the retrieval requests “Digital agriculture”, “Precision Agriculture” were analyzed. The authors estimated the dynamics of document flows to the AGROS database and confirmed strong growth of volume of local publications on precision agriculture to the level demonstrating technology adoption of precision agriculture. Meanwhile the level of document flow on digital agriculture is at the starting level. Analysis of most frequent publications on the topic showed that there’s no local specialized journals on precision agriculture, most frequently publications appeared in local journals such as “Machinery and equipment for rural areas”, “Soil science and agrochemistry”, “Agricultural machinery and technology”. Predominantly materials were published in specialized foreign journals “Computers and electronics in agriculture” and “Precision agriculture”. Most of the documents were obtained from WOS and Scopus databases, but a lot of them are irrelevant. While searching for foreign documents it makes sense to use all the databases available, but most of the full-size texts in open access are available in the AGRIS database. In the same way AGROS database provide a wide range of full-size texts in the Russian language. Both AGROS and AGRIS databases showed high efficiency of search with most relevant documents in search results since both databases use thesaurus as a linguistic tool

Methods of estimation of dissipative properties of steels at low temperatures

Use of the methodology of multifractal parameterization of structures, for conducting an estimate of habits of change in micromechanisms of shattering of steel at different temperatures of the testings, reflecting to dynamic loudspeaker of the latent dissipative processes. This method allows to present quantitatively not only an over-all configuration of structure for actual natural materials, but also inhomogeneity of allocation geometrical, physical, chemical, etc. characteristics, according to the nature of investigated structure that cannot be reached ordinary methods

The surface piezoresponce and electric potential of the c-oriented Sr0.5Ba0.5Nb2O6/Pt/Al2O3 thin films

This work was supported by the Ministry of Education and Science of the Russian Federation (research projects No. 3.1649.2017/4.6 and No. 3.6439.2017)

Информационное обеспечение научных исследований по проблематике АПК

The Central Scientific Agricultural Library’s system of the agrarian science information support is examined. The Library strives to make the content available online to the maximum. Most of its information services are offered both in conventional and online formats. For the recent 26 years the Library’s products have been being generated in digital formats and are accessible via the Library’s www-site in a varying degree. The www-site serves as a billboard promoting the Library’s events and activities, as well as the reading environment for the users retrieving information. The system of agrarian researcher awareness-building includes alert informing, current informing, and selective dissemination of information. The main information source is the CSAL collection comprising above 3 millions of depository items. On this basis of information products are generated: bibliographic, abstract and full-text databases, bibliographic and abstract publications, and electronic libraries. The key information product is the AGROS database comprising information on books and articles in 42 languages of the world of the total volume of over 1.95 million records. The database provides efficient identifying and subject-specific search owing to target- developed information retrieval languages: the information retrieval thesaurus in agriculture and foods, RUSMARC format. The authors conclude that agrarian science information support comprises diverse information products; well-developed awareness-building system enables to receive information in print and digital formats, online or in the Library’s physical premises, independently or through librarian’s assistance.Рассмотрена функционирующая в Центральной научной сельскохозяйственной библиотеке система информационного обеспечения аграрной науки. Библиотека стремится к тому, чтобы пользователь получал максимальное количество информации дистанционно. Большинство информационных услуг предоставляется в традиционной и дистанционной формах. В последние 26 лет все информационные продукты ЦНСХБ создаются в электронной форме и в разной степени доступны на её сайте для пользователя. Сайт представляет собой информационную доску, отражающую события и мероприятия библиотеки, а также виртуальный читальный зал, где можно получить разнообразную информацию. Представлена система информирования учёного-агрария, включающая сигнальное, текущее и ИРИ. Основной источник информации фонд ЦНСХБ: свыше 3 млн единиц хранения, на основе которого создаются информационные продукты библиографические, реферативные и полнотекстовые базы данных, библиографические и реферативные издания, электронные библиотеки. Основной информационный продукт БД «АГРОС», в которой отражена информация о книгах и статьях на 42 языках мира; объём БД более 1,95 млн записей. БД обеспечивает эффективный идентификационный и тематический поиск благодаря специально разработанным информационно-поисковым языкам: информационно-поисковому тезаурусу по сельскому хозяйству и продовольствию, формату RUSMARC. Сделан вывод: информационное обеспечение аграрной науки включает различные информационные продукты; разработанная система информирования позволяет получать информацию в печатной и электронной формах дистанционно или в стенах библиотеки, самостоятельно или с помощью библиотекаря

Obstetric history and birth characteristics and Wilms Tumor: A report from the Children’s Onocolgy Group

Previous epidemiologic studies have suggested that various pregnancy and birth characteristics may be associated with Wilms tumor, a childhood kidney tumor. We evaluated obstetric events and birth characteristics in relation to Wilms tumor using data from a large North American case-control study. Mothers of 521 children with Wilms tumor and 517 controls, frequency matched on child’s age and geographic region, provided information about their labor and delivery history and their children’s birth characteristics through detailed computer assisted telephone interviews. Most obstetric factors were not associated with Wilms tumor, but modest associations were observed for labor induction (OR:1.4, 95% Confidence Interval (CI): 1.1,1.8), prenatal vaginal infection (OR: 1.8, 95% CI:1.2,2.8), and upper respiratory infection (OR: 1.5, 95% CI: 1.0,2.4). Low (4500g) birth weight and preterm delivery (<37 weeks completed gestation) were associated with an elevated risk of Wilms tumor, as was neonatal respiratory problems. The association for high birth weight was present only among children with perilobar nephrogenic rests (OR: 2.1, 95% CI: 1.2,3.9), possibly distinguishing a specific association among a biologically distinct subgroup of Wilms tumor cases. The results of this large study did not support many of the earlier findings of smaller studies. However, additional investigations of the effects of certain obstetric and birth characteristics among more refined tumor subgroups may further our understanding of these factors in relation to Wilms tumor

Общеотраслевые лингвистические средства: роль в информационном обеспечении научных исследований агропромышленного комплекса России

The studies were accomplished at the Central Scientific Agricultural Library (CSAL) to update the industry-wide linguistic instruments used in the Library’s Information Retrieval System and union catalog of the research institutions’ libraries of the Agroindustrial Complex (AIC) of Russia. The set of linguistic tools is briefly described; the two-level model of the linguistic support structure is introduced. The significance and advantages of using information retrieval languages in the Automated Information-Retrieval System are discussed. The purpose of the study was to improve the information support of research in the AIC in terms of actualization of the database (BD) of the Information Retrieval Thesaurus in Agriculture and Food and the database “Authority File (AF) of Scientific Research Institutions (SRI) in the AIC”. Brief descriptions of these information retrieval languages and their functions are included. The functions of the Information-Search Thesaurus are: to index documents and inquiries; to reflect the paradigmatic relations between lexical units; to control and normalize lexis in agriculture and food; to provide unified and formalized information representation in AGROS database; to expand automatically document search profiles; it also functions as a terminological guide in agriculture and food. As the guide, it retrieves the names of institutions since the foundations date; it can be also used for constructing the bibliographic record element (organization’s name. or corporate author); and retrieves information from information resources. The procedures for adding new lexical items and revising the previously included data are described.Рассмотрены исследования, проведённые в Центральной научной сельскохозяйственной библиотеке по актуализации общеотраслевых лингвистических средств, используемых в информационно-поисковой системе библиотеки и сводном каталоге библиотек научно-исследовательских учреждений АПК России. Кратко описан набор используемых лингвистических средств, представлена двухуровневая модель структуры лингвистического обеспечения библиотеки. Рассмотрены роль и преимущества использования информационно-поисковых языков в автоматизированной информационно-поисковой системе. Цель исследования – совершенствование информационного обеспечения научных исследований в АПК в части актуализации БД информационно-поискового тезауруса по сельскому хозяйству и продовольствию и БД «Авторитетный файл наименований НИУ АПК» (АФ). Представлены краткие характеристики этих ИПЯ и их функции. Информационно-поисковый тезаурус индексирует документы и запросы; отражает парадигматические отношения, существующие между лексическими единицами; обеспечивает контроль и нормализацию лексики по сельскому хозяйству и продовольствию, единое и формализованное представление информации в БД «АГРОС», автоматизированное расширение поискового образа документа; выполняет функции терминологического справочного пособия в области сельского хозяйства и продовольствия. АФ выступает справочным пособием для получения информации о наименовании учреждения с момента его основания и инструментом для формирования элемента библиографической записи «Наименование организации (коллективный автор)»; организует поиск в информационных ресурсах. Представлены работы по пополнению контента новыми лексическими единицами и редактированию ранее включённых данных

Organ–preserving operations for the gun–shot thoraco–abdominal and abdominal woundings with splenic injuries

Objective.To determine the expediency of the spleen–preserving operations performance for its injury due to gun–shot thoraco–abdominal and abdominal woundings. Materials and methods. Of 51wounded persons with the gun–shot penetrating abdominal woundings with splenic injuries 8 (15.7%) were operated on the II level of the medical help delivery, while on the ІІІ level – 43 (84.3%). Of 43 wounded persons, operated on the ІІІ level of the medical help delivery, in 35 (81.4%) splenectomy was performed, while in 8 (18.6%) – the organ–preserving operations. All the splenic injuries have been characterized as a shrapnel woundings. The splenic damage degree was estimated in accordance to Moore, taking into account its structure. In 5 (62.5%) wounded persons the open laparotomy organ–preserving operations were performed, and while using video–laparoscopic system– in 3 (37.5%). Results. Ultrasonographic investigation in accordance to the FAST–protocol was done in all the wounded persons, what have permitted to determine the blood abdominal outpouring volume as well as the splenic injury presence. The affection volume and further tactics were determined using video–laparoscopy. The Stage I splenic affection in accordance to Moore was diagnosed in 4 (50%) wounded persons, the Stage ІІ – in 3 (37.5%), and the Stage ІІІ – in 1 (12.5%). In all the patients, in whom organ–preserving interventions were performed, the surgical help volume consisted of coagulation, using the radiofrequency therapy apparatus MEDTRONICAEX and the hemostatic sponge application with drainage of the left subdiaphragmatic space, using silicone tube. Conclusion. Organ–preserving operations in splenic injury are expedient to be performed on ІІІ level of the medical help delivery, while presence of local conditions, such as the organ injury degrees І and ІІ,determined in accordance to Moore, as well as adequate time and equipment

Precise measurement of the W-boson mass with the CDF II detector

We have measured the W-boson mass MW using data corresponding to 2.2/fb of integrated luminosity collected in proton-antiproton collisions at 1.96 TeV with the CDF II detector at the Fermilab Tevatron collider. Samples consisting of 470126 W->enu candidates and 624708 W->munu candidates yield the measurement MW = 80387 +- 12 (stat) +- 15 (syst) = 80387 +- 19 MeV. This is the most precise measurement of the W-boson mass to date and significantly exceeds the precision of all previous measurements combined