Theoretical & Applied Science

1-7

Authors: Hosseini Ameneh

For the development of comparable tests in international studies it is essential to examine Differential Item Functioning (DIF) by different demographic groups, in particular cultural and language groups. For the selection of test items it is important to analyze the extent to which items function differently across the sub-groups of students. For the past several years, interest has been demonstrated in the study of differential item functioning (DIF). DIF is investigated whenever one wants to identify items on which two groups of examinees, matched on a mea sure of an appropriate variable, do not perform the same. Motivation for studying DIF could stem from psychometric considerations or from broader issues having to do with pedagogical, social, or psychological questions. The purpose of this study is to help ensure that strategies for differential item functioning (DIF) detection for students with disabilities are appropriate and lead to meaningful results. We surveyed existing DIF studies for students with disabilities and describe them in terms of study design, statistical approach, sample characteristics, and DIF results. Based on descriptive and graphical summaries of previous DIF studies, we make recommendations for future studies of DIF for students with disabilities.

15-18

Authors: Denis Alexandrovich Chemezov ; Elena Evgenyevna Kiseleva

The article considers the system of events aimed at the energy audit of the structural units of the JSC «Zavod «Avtopribor». The choice of the most rational lighting one of the energy-intensive production premises of the enterprise was performed on the basis of the computer calculation.

24-29

Authors: Waldemar Nowakowski

It is hard to imagine a contemporary world without tools helping in fast and efficient communication. A fundament of the modern communication is created by network infrastructure. Safety and reliability constitute main requirements for the network infrastructure, especially in the industry usage. Network technologies are helpful in achieving this condition. The author of this publication described the redundant Ethernet ring and proposed a method of the ring status control with the use of SNMP (Simple Network Management Protocol). Next, taking this method into account, the author developed network management software. In this article, the functionality of this software, with attention paid at diagnostics of the status ring, has been described. Verification of a practical method of the ring status control has proven its usefulness. It allows creating diagnostic software compatible with managed devices developed by various producers.

36-48

Authors: Ganiyu Adedayo Ajenikoko ; Oluwatoyin Abdullattef Salami

The output of light energy from the entire core of the sun measured at the earth is called the solar irradiance. The epileptic nature of power supply has made it a challenge to provide sufficient power and energy to the growing population. This paper develops a generalized two-parameter temperature based linear model for assessment of solar irradiance on Nigerian geo-political zones. The minimum and maximum monthly mean daily ambient temperature as well as the monthly mean daily global solar radiation from natural were collected and analysed over a twenty year period for seven selected locations on Nigerian geo-political zones. Appropriate mathematical notations were used to perform a stochastic analysis on the collected data to develop a generalized model. The performance evaluation of the generalized model was done by computing the t-value in terms of the mean-bias error (MBE) and the root mean square error (RMSE) with the analysis done at 95% confidence level. A low MBE value of 0.0327 suggests a good long-term representation of the physical problem. The RMSE which was in the range of 0.1835 to 0.2887 is dilates the efficiency of the generalized model. Sokoto has a relatively high annual solar irradiance and far much more than the 1.361KW/m2/d benchmark. Maiduguri has the highest annual irradiance as compared to other locations used as case studies in this research paper. It also has the highest potential for the generation of solar energy. Maiduguri with an annual average solar irradiance of 5.89kWh/m2/d is the least site under consideration. This signifies that Nigeria is a good site for solar exploration and has high solar energy feasibility, as Port-Harcourt (the site with lowest solar irradiance) is significantly above the standard value of annual average solar irradiance. Even though, the solar radiation is generally high throughout the year in Maiduguri, February – April appeared as the months with the highest solar radiation. August appeared as the month with lowest solar radiation. Jos had the best

57-63

Authors: Afshar Naimeh

It should be borne in mind that CALL does not refer to the use of a computer by a teacher to type out a worksheet or a class list or preparing his/her own teaching alone. The field of computer-assisted language learning (CALL) is, by the very nature of its dependence on technology, one that is in a constant state of change. Given the centrality of technology in CALL, any discussions of theory, research or practice must take into the consideration the impact that technology has, not only on the learning process, but also on the reasons for and the focus of research undertaken in the field, and the range of factors which may contribute to how and why technology is employed in a given context. The purpose of this study was to investigate attitudes toward computer-assisted language learning among 60 Iranian secondary school students. The methodology employed a replication design and questionnaire approach. T-test analysis of variance procedures were used to evaluate relationships among the independent variables and the attitude survey responses. Findings indicated that Iranian college students hold positive attitudes toward learning English, using computers, and using computers when learning English. Moreover, male Iranian college students held more favorable attitudes than females toward the use of computers when learning English.

70-75

Authors: Igor Viktorovich Goloperov ; Elena Aleksandrovna Belova ; Aleksandr Nikolaevich Baklanov ; Larisa Vladimirovna Baklanova

A solution to the problem of the safety of iodized salt is proposed. A new safe method of salt iodization has been developed. Toxic potassium iodated is suggested to be replaced with safer sodium iodide. To prevent the oxidation of sodium iodide with air oxygen, the technology of its introduction into the food emulsifier of MGD has been proposed. Sodium iodide was dissolved in ethanol by ultrasound to obtain 50-55% solution. In the resulting solution, the food emulsifier MHD was dissolved to 50-60% solution. The resulting iodine-containing additive was mixed with common salt. Shelf life of iodized salt is 2 years.

79-82

Authors: Aminjon Qudratovich Aymatov

In this article some principles and aspects of forming and developing of environmental consciousness and aesthetic perception of world of nature and world of human are considered.

87-89

Authors: Ruzi Robievich Komilov

In this article some moments of one of the most important ceremonies in the life of every Uzbek - the wedding are considered. This ceremony in Uzbekistan is interesting for its special features, customs and traditions. This feast is accompanied by various rituals, in which a large number of relatives and friends of the groom and the bride's family are received.

103-107

Authors: Alisher Muminov

At the present article a brief outlook is given on the role and importance of such a traditional social institute for Uzbekistan as self-governing bodies or so-called makhallas while undertaking by Uzbekistan complex transitional reforms from the strong state to the strong civil society. It is argued that in Uzbekistan traditionalism goes in a line with modernity which can fully be noted in the presence of makhallas being a bridge between the state and citizens, conductor of democratic values within the society, generator of the so-called social capital, one of the drivers of social partnership and sources of emergence and further development of middle class. Alongside with this, there are some paragraphs with an analysis of other communities such as neighborhood associations in Japan and neighboring communities in Europe which have some similarity to Uzbek makhallas and whose experience could be implemented while improving makhallas’ activities. Our general approach to the topic consists not only in studying common features of the makhallas but in considering these institutes as a crucial one in forming and development of the civil society in Uzbekistan.

118-123

Authors: Donoxon Saidjalolovna Ne'matova

This artiicle depicts the peculiarities of publicistic style in the construction of sentence.

128-136

Authors: Sergey Alexandrovich, Mishchik

the basic principles of the system of hydraulic problems in applied physics Navy pedagogometric analysis of the formation of mathematical models of learning activities about the nature of achieving the criteria of life, cycling, systemsness and phasing, which form a basic cell of the educational space, as well as prima nenie twelve pointed star Ertsgammy relatively presentation ertsgamming principle which determines the founda-tions pedagogometric through forming substantive methods of hyper-space professional life, psychological and educational activity theory, psycho-pedagogical system analysis and the theory of the formation of mental actions.

145-150

Authors: Dimitry Anatolievich Sovetnikov ; Viktir Yureivich Mishakov ; Elena Aleksandrovna Kirsanova

Conducted research investigated the deformation characteristics of nonwoven insulation materials, different fiber composition and different surface density. The peculiarities of the design packages of materials for heat protective clothing, and identifies their principal. The features change and elastic to the plastic compressive deformations of the materials used in the packages of clothing for the soldiers. Identified system requirements package of insulation and the proposed technical solution to meet them, different fiber composition and different surface density.

154-157

Authors: Khushvakt Saparbayevich Khayitov

This article analyzes the necessity of conducting legal linguistic expertise of draft laws and considers its scientific and legal bases, peculiarities of legal linguistic expertise in some foreign countries. In addition, some recommendations on improvement of the practice have been suggested.

161-165

Authors: Madina Ulugbekovna Tursunova

This article discusses the formation and development of international cooperation of the Republic of Uzbekistan in the field of science and education, analyzed and classified the international legal framework and cooperation mechanisms, and developed proposals for further development of this field.

177-188

Authors: Igor Mikhailovich Posokhov ; Elena Chepizhko

The main approaches to the analysis of competition and competitiveness of the companies have been studied; the authorship approach has been proposed, and the specific features and the main components of it were described. To analyze the specific features of competitiveness theories the main periods of evolutionary development of the economic thought were identified with regard to the competitiveness of the entities of economic activities; the main factors of competitiveness of the companies during different periods of the evolution of economic thought were specified.

198-201

Authors: A.P. Narmatova

The significance of cross-cultural communication is revealed in the article, main approaches to teaching foreign languages are considered. Semantics of the revealed of proverbs is studied. The analysis of the German, Russian and Uzbek proverbs with components of warning, advice, wisdom, allowed to reveal both coincidence of cultural meanings, and their distinctions is carried out.

206-210

Authors: Orifjon Tolibjonovich Nurmatov

In the following article, essence of modernization was theoretically researched. Historical development of modernization process in Uzbekistan and its potential problems are illustrated.

216-219

Authors: Nodira Xanxodjayeva ; Surayyo Mutalovna Ermatova ; Umida Dilmurodovna Muradova ; Jasur Samandarovich Sadinov

The article reveals the goals and tasks of ecology, as a complex scientific discipline. It poses one of its main problems – anthropogenic impact on the Earth`s soil cover. The author reveals the problem of chemical soil contamination, gives materials on soil cover monitoring, gives examples of methods for determining pollution, gives examples of insane use of soil resources and offers practical steps aimed at understanding the importance of the student`s task in protecting the Earth.