Development of metacognitive competencies of students in the process of constructing mathematical problems for younger students

The article presents a description of the study of the effectiveness of methodological tools aimed at developing metacognitive competence in future elementary school teachers in the classroom on the methodology of teaching mathematics to younger students.The aim of the study is to empirically test the effectiveness of a set of methodological techniques used in the classroom on the methodology of teaching mathematics to future elementary school teachers as a means of developing their metacognitive competencies. The hypothesis of the study is the assumption that one of the effective means of developing metacognitive competencies in future elementary school teachers is special classes for compiling original scenarios of verbal mathematical problems for younger students. A professionally developed verbal composition of a mathematical problem sets the vector of mental activity for the younger student. It requires the developer to build a forecast of the child’s mental actions, determine algorithms and levels of difficulty in obtaining the right solution. The study used methods for testing students’ cognitive characteristics (intelligence) and peer review of their “metacognitive knowledge”, “metacognitive skills”, “metacognitive experience” and “metacognitive strategies”. The methodological solutions implemented in the classroom have shown their effectiveness. For the practice of preparing future primary school teachers, it is important that the well-organized development of compositions of textual mathematical problems for younger students is an effective means of developing their metacognitive competencies

Использование в педиатрической практике препаратов рекомбинантного интерферона альфа-2b в лекарственной форме суппозитории ректальные: кому? когда? какие?

The paper presents the indications and main differences of frequently used rectal suppositories containing interferon alpha-2b.The features and differences in the contained excipients are highlighted. A range of diseases in children's practice is presented, in which candles are shown VIFERON®, Kipferon®, Genferon light®В работе представлен обзор применяемых на практике ректальных суппозиториях, содержащих интерферон альфа-2b. Выделены особенности и различия в содержащихся вспомогательных веществах. Представлен спектр заболеваний в детской практике, при которых показано применение рекомбинантных интерферонов альфа-2b в форме ректальных суппозиториев

Возможности противовирусной и иммуномодулирующей терапии в лечении гриппа, ОРВИ, герпесвирусных инфекций

Currently, acute respiratory infection (ARI) and Herpes virus infection are widely prevalent in children and adults. Clinical presentations and course, characterization of ARI and Herpes virus infection, groups of immunomodilating drugs and current individualized treatment approach are reviewed in this article.Острые респираторные вирусные (ОРВИ) и герпесвирусные инфекции стали одними из самых распространенных заболеваний как среди детей, так и среди взрослых. Представлены клинические особенности течения и классификации ОРВИ, герпетических инфекций, иммуномодулирующих препаратов, а также возможности современного лечения с учетом индивидуального подхода, особенно у часто болеющих детей и взрослых

Answering Non-Monotonic Queries in Relational Data Exchange

Relational data exchange is the problem of translating relational data from a source schema into a target schema, according to a specification of the relationship between the source data and the target data. One of the basic issues is how to answer queries that are posed against target data. While consensus has been reached on the definitive semantics for monotonic queries, this issue turned out to be considerably more difficult for non-monotonic queries. Several semantics for non-monotonic queries have been proposed in the past few years. This article proposes a new semantics for non-monotonic queries, called the GCWA*-semantics. It is inspired by semantics from the area of deductive databases. We show that the GCWA*-semantics coincides with the standard open world semantics on monotonic queries, and we further explore the (data) complexity of evaluating non-monotonic queries under the GCWA*-semantics. In particular, we introduce a class of schema mappings for which universal queries can be evaluated under the GCWA*-semantics in polynomial time (data complexity) on the core of the universal solutions.Comment: 55 pages, 3 figure

ЗНАЧЕНИЕ ВИРУСА ГЕРПЕСА 6-ГО ТИПА В ГЕНЕЗЕ СУДОРОЖНОГО СИНДРОМА У ДЕТЕЙ

The value of human herpes virus type 6 (HHV-6) in the structure of seizures in 114 children in three groups of patients: with neuroinfections, with epilepsy and febrile convulsions was studied. Determination of HHV-6 by polymerase chain reaction in the acute period of the disease is a reliable sign (p < 0.001), and most often diagnosed in children in the group with febrile seizures (53.8%). Recovery in children with seizures caused by HHV-6, was observed only in 28% of cases,38.8% of patients in the outcome of the disease expand the epilepsy.Изучено значение вируса герпеса человека 6-го типа (HHV-6) в структуре судорожного синдрома у 114 детей в трех группах больных: с нейроинфекциями, с эпилепсией и с фебрильными судорогами. Выявление генома HHV-6 методом полимеразной цепной реакции в остром периоде заболевания является достоверным признаком (р < 0,001) и наиболее часто обнаруживает-ся у детей в группе с фебрильными судорогами (53,8%). Выздоровление у детей с судорожным синдромом, обусловленным HHV-6, наблюдается лишь в 28% случаев, у 38,8% больных в исходе заболевания развивается эпилепсия.

The ATLAS Transition Radiation Tracker (TRT) proportional drift tube: design and performance

A straw proportional counter is the basic element of the ATLAS Transition Radiation Tracker (TRT). Its detailed properties as well as the main properties of a few TRT operating gas mixtures are described. Particular attention is paid to straw tube performance in high radiation conditions and to its operational stability

The ATLAS TRT electronics

The ATLAS inner detector consists of three sub-systems: the pixel detector spanning the radius range 4cm-20cm, the semiconductor tracker at radii from 30 to 52 cm, and the transition radiation tracker (TRT), tracking from 56 to 107 cm. The TRT provides a combination of continuous tracking with many projective measurements based on individual drift tubes (or straws) and of electron identification based on transition radiation from fibres or foils interleaved between the straws themselves. This paper describes the on and off detector electronics for the TRT as well as the TRT portion of the data acquisition (DAQ) system

Effects of hospital facilities on patient outcomes after cancer surgery: an international, prospective, observational study

Background Early death after cancer surgery is higher in low-income and middle-income countries (LMICs) compared with in high-income countries, yet the impact of facility characteristics on early postoperative outcomes is unknown. The aim of this study was to examine the association between hospital infrastructure, resource availability, and processes on early outcomes after cancer surgery worldwide.Methods A multimethods analysis was performed as part of the GlobalSurg 3 study-a multicentre, international, prospective cohort study of patients who had surgery for breast, colorectal, or gastric cancer. The primary outcomes were 30-day mortality and 30-day major complication rates. Potentially beneficial hospital facilities were identified by variable selection to select those associated with 30-day mortality. Adjusted outcomes were determined using generalised estimating equations to account for patient characteristics and country-income group, with population stratification by hospital.Findings Between April 1, 2018, and April 23, 2019, facility-level data were collected for 9685 patients across 238 hospitals in 66 countries (91 hospitals in 20 high-income countries; 57 hospitals in 19 upper-middle-income countries; and 90 hospitals in 27 low-income to lower-middle-income countries). The availability of five hospital facilities was inversely associated with mortality: ultrasound, CT scanner, critical care unit, opioid analgesia, and oncologist. After adjustment for case-mix and country income group, hospitals with three or fewer of these facilities (62 hospitals, 1294 patients) had higher mortality compared with those with four or five (adjusted odds ratio [OR] 3.85 [95% CI 2.58-5.75]; p<0.0001), with excess mortality predominantly explained by a limited capacity to rescue following the development of major complications (63.0% vs 82.7%; OR 0.35 [0.23-0.53]; p<0.0001). Across LMICs, improvements in hospital facilities would prevent one to three deaths for every 100 patients undergoing surgery for cancer.Interpretation Hospitals with higher levels of infrastructure and resources have better outcomes after cancer surgery, independent of country income. Without urgent strengthening of hospital infrastructure and resources, the reductions in cancer-associated mortality associated with improved access will not be realised