Assessment of students’ professional competencies – the future teachers of mathematics

The aim of the investigation is to describe the authors’ approach to the assessment of the professional competence of the future teacher of mathematics. Methods. The methods involve comparative analysis of the Professional Standard of the teacher and the Federal State Educational Standards in teacher education, as well as the method of predictive analysis of modern educational situation. Results. Qualimetric approach to the structuring of the professional competencies of students is described; it allows concretizing the assessment object, to select the criteria and levels of its formedness, to trace the dynamics of development in the medium of profile preparation of a bachelor. The methodology of assessment a professional-profile competence of the future mathematics teachers is proposed; examples of the competence-assessment tools are provided. Scientific novelty. The study gives a detailed analysis of developing the innovative approach to competencies assessment as metasubject learning outcomes. Practical significance. The proposed method of competencies assessment can be used in the mathematical preparation of the future mathematics teacher, and can serve as a basis for monitoring the professional competencies of studentsЦель публикации – описание авторского подхода к оцениванию профессиональных компетенций будущего учителя математики. Методы. В представленном в статье исследовании применялись метод сравнительного анализа профессионального стандарта педагога и федеральных государственных образовательных стандартов по педагогическому образованию, а также метод прогностического анализа развития современной образовательной ситуации. Результаты. Рассмотрен квалиметрический подход к структурированию профессиональных компетенций студентов, который позволяет детализировать объект измерения, выделить критерии и уровни его сформированности, проследить динамику его развития в сфере профильной подготовки бакалавра. Описана методика оценивания одной из профессионально-профильных компетенций будущего учителя математики, приведены примеры компетентностно-оценочных средств. Научная новизна выдвигаемых идей заключается в разработке инновационного подхода к оцениванию компетенций как метапредметных результатов обучения студентов педагогических специальностей. Практическая значимость. Предлагаемая методика оценивания компетенций может быть использована в процессе подготовки будущего учителя математики и может служить основой мониторинга качества подготовки студенто

Inclusion of beta-carotene in various courses of chemotherapy of lympholeucosis L1210

Possibility of including of synthetic beta-carotene in variuos courses of chemotherapy of lympholeucosis of mice BDF1 was investigated. In experimental models cyclophosphan and platidiam (50, 100, 200 and 8 mg/kg b.w. respectively) was used as anticancer drugs. Beta-carotene (5, 10, 20, 50 mg/kg b.w.) was administrated to mice in different schemes. During experiments it was observed that beta-carotene does not effect the rapeutic action of cyclophósphan and platidiam during treatment of lympholeucosis L1210

Relief and geology of the north polar region of the planet Venus

Description of topographic features is given for the North polar region of the planet Venus. Principal geomorphic types of terrain are characterized as well as their geologic relations. Relative ages of geologic units in Venus North polar region are discussed

Molecular identification of streptomycin monoresistant Mycobacterium tuberculosis related to multidrug-resistant W strain.

A distinct branch of the Mycobacterium tuberculosis W phylogenetic lineage (W14 group) has been identified and characterized by various genotyping techniques. The W14 group comprises three strain variants: W14, W23, and W26, which accounted for 26 clinical isolates from the New York City metropolitan area. The W14 group shares a unique IS6110 hybridizing banding motif as well as distinct polymorphic GC-rich repetitive sequence and variable number tandem repeat patterns. All W14 group members have high levels of streptomycin resistance. When the streptomycin resistance rpsL target gene was sequenced, all members of this strain family had an identical mutation in codon 43. Patients infected with the W14 group were primarily of non- Hispanic black origin (77%); all were US-born. Including HIV positivity, 84% of the patients had at least one known risk factor for tuberculosis

A novel molecular strategy for surveillance of multidrug resistant tuberculosis in high burden settings

BACKGROUND In South Africa and other high prevalence countries, transmission is a significant contributor to rising rates of multidrug resistant tuberculosis (MDR-TB). Thus, there is a need to develop an early detection system for transmission clusters suitable for high burden settings. We have evaluated the discriminatory power and clustering concordance of a novel and simple genotyping approach, combining spoligotyping with pncA sequencing (SpoNC), against two well-established methods: IS6110-RFLP and 24-loci MIRU-VNTR. METHODS A total of 216 MDR-TB isolates collected from January to June 2010 from the NHLS Central TB referral laboratory in Braamfontein, Johannesburg, representing a diversity of strains from South Africa, were included. The isolates were submitted for genotyping, pncA sequencing and analysis to the Centre for Tuberculosis in South Africa and the Public Health Research Institute Tuberculosis Center at Rutgers University in the United States. Clustering rates, Hunter-Gaston Discriminatory Indexes (HGI) and Wallace coefficients were compared between the methods. RESULTS Overall clustering rates were high by both IS6110-RFLP (52.8%) and MIRU-VNTR (45.8%), indicative of on-going transmission. Both 24-loci MIRU-VNTR and IS6110-RFLP had similar HGI (0.972 and 0.973, respectively), with close numbers of unique profiles (87 vs. 70), clustered isolates (129 vs. 146), and cluster sizes (2 to 26 vs. 2 to 25 isolates). Spoligotyping alone was the least discriminatory (80.1% clustering, HGI 0.903), with 28 unique types. However, the discriminatory power of spoligotyping was improved when combined with pncA sequencing using the SpoNC approach (61.8% clustering, HGI 0.958). A high proportion of MDR-TB isolates had mutations in pncA (68%, n = 145), and pncA mutations were significantly associated with clustering (p = 0.007 and p = 0.0013 by 24-loci MIRU-VNTR and IS6110-RFLP, respectively), suggesting high rates of resistance to pyrazinamide among all MDR-TB cases and particularly among clustered cases. CONCLUSION We conclude that SpoNC provides good discrimination for MDR-TB surveillance and early identification of outbreaks in South Africa, with 24-loci MIRU-VNTR applied for pncA wildtype strains as needed.Supporting Information. S1 File. (XLSX)http://www.plosone.orgam2016Medical Microbiolog

Forming Professional Competence of Future Mathematics Teachers in the Course of Research Activity

The article deals with the various aspects of the organization of research among students - future teachers of mathematics under the conditions of the implementation of competence-based approach according to the requirements of the new educational standards

Formation of Professional Competences of Future Mathematics Teacher in the Process of Studying Integrated Optional Course

The integrated optional course as a means of forming the metasubject qualities and professional competences of a future teacher is considered in the article. The example of the implementation of the course in the process of future mathematics teacher training in the frame of the subject “Mathematics in life” is given

Inclusion of beta-carotene in various courses of chemotherapy of lympholeucosis L1210

Possibility of including of synthetic beta-carotene in variuos courses of chemotherapy of lympholeucosis of mice BDF1 was investigated. In experimental models cyclophosphan and platidiam (50, 100, 200 and 8 mg/kg b.w. respectively) was used as anticancer drugs. Beta-carotene (5, 10, 20, 50 mg/kg b.w.) was administrated to mice in different schemes. During experiments it was observed that beta-carotene does not effect the rapeutic action of cyclophósphan and platidiam during treatment of lympholeucosis L1210

Inclusion of beta-carotene in various courses of chemotherapy of lympholeucosis L1210

Possibility of including of synthetic beta-carotene in variuos courses of chemotherapy of lympholeucosis of mice BDF1 was investigated. In experimental models cyclophosphan and platidiam (50, 100, 200 and 8 mg/kg b.w. respectively) was used as anticancer drugs. Beta-carotene (5, 10, 20, 50 mg/kg b.w.) was administrated to mice in different schemes. During experiments it was observed that beta-carotene does not effect the rapeutic action of cyclophósphan and platidiam during treatment of lympholeucosis L1210

AVALANCHE BREAKDOWN OF p-n-JUNCTION IN RADIOTECHNICS

The paper presents research results of fractal properties of microplasma noise at LED avalanche breakdown in the visible spectrum (λ= 660; 700 nm). The breakdown type of p-n-junctionwas determined as a result of measured current-voltage characteristics at room temperature, at the temperature of 100-105 °C and after cooling down to room temperature. It was shown that the breakdown of avalanche type is realized in the majority of LEDs. It was established that the partial avalanche breakdown mode may be realized in LEDs, when a small current flows in pulses through the device. By increasing the voltage, pulse amplitude increases, closely spaced pulses merge, and time intervals between them are reduced. To interpret experimental results we applied model of processes occurring in microplasma, and noise model of partial and advanced avalanche breakdown (by A.S. Tager). The study revealed previously non-described features of microplasma noise – the fractal nature of microplasma noise. The algorithm for fractal dimension calculating was implemented in MATLAB. The dependence of fractal dimension on the reverse voltage applied to the LEDs was found out. Obtained fractal signal can be applied in optical communication systems for noise free and confidential information transmission