bluuebunny/crossref_metadata_2025 huggingface dataset:
PEMBELAJARAN TERINTEGRASI STEM UNTUK MENINGKATKAN LITERASI MATEMATIS MAHASISWA CALON GURU MATEMATIKA PADA PERKULIAHAN PRA-KALKULUS 1
Authors: Sulistiawati Sulistiawati , Juandi Dadang , Yuliardi Ricki
Published: March 2021

Penelitian ini dilatarbelakangi oleh masih rendahnya kemampuan literasi matematis yang menjadi perhatian global dalam pembelajaran/perkuliahan matematika. Salah satu cara untuk menumbuhkan kemampuan literasi matematis adalah dengan mengintegrasikan STEM (Science, Technology, Engineering, and Mathematics) dalam pembelajaran. Tujuan penelitian ini adalah untuk: (1) mendeskripsikan pembelajaran yang mengintegrasikan STEM pada perkuliahan Pra Kalkulus 1 bagi mahasiswa calon guru matematika pada materi fungsi;(2) mendeskripsikan bagaimana peningkatan kemampuan literasi matematis mahasiswa calon guru matematika melalui pembelajaran yang terintegrasi STEM; dan (3)  mendeskripsikan bagaimana respon mahasiswa calon guru matematika terhadap pembelajaran yang terintegrasi STEM.Metode dalam penelitian iniadalah penelitian deskriptif dengan pendekatan kuantitatif dan kualitatif. Subjek penelitian ini adalah enam mahasiswa STKIP Surya yang mengikuti pembelajaran/perkuliahan Pra-Kalkulus 1 padaSemester Ganjil Tahun Akademik 2019/2020. Instrumen dalam penelitian ini adalah tes literasi matematis (7 butir soal) dan angket (30 butir pernyataan). Hasil penelitian ini adalah:(1) pembelajaran Pra Kalkulus materi fungsi terintegrasi STEM bagi mahasiswa calon guru disampaikan dengan menyampaikan konsep-konsep diawali dari konteks dan juga implementasinya dalam bidang sains, teknologi, rekayasa/teknik, dan matematika melalui proses pembelajaran secara ceramah, demonstrasi, eksplorasi, latihan, dan penugasan proyek; (2) mahasiswa memiliki penguasaan literasi matematis dengan peningkatan pada kategori sedang; dan (3) mahasiswa memberikan respon positif terhadap pembelajaran terintegrasi STEM untuk meningkatkan literasi matematis.
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE STAD DENGAN MEDIA SOFTWARE PESONA EDU UNTUK MENINGKATKAN PRESTASI BELAJAR MATEMATIKA SISWA
Authors: Juhaeroh Ai
Published: March 2021

Penelitian ini dilatarbelakangi dari observasi awal menunjukkan hasil belajar matematika siswa kelas IX A SMP Negeri 7 Tasikmalaya lebih dari 50% belum mencapai KKM dan pelaksanaan pembelajarannya masih berpusat kepada guru, sehingga mengakibatkan siswa menjadi pasif. Oleh karena tu, diperlukan upaya mengatasi persoalan tersebut. Penelitian ini bertujuan untuk mendeskripsikan peningkatan hasil belajar matematika dan aktivitas siswa melalui penerapan model pembelajaran kooperatif tipe Student Team Achievement Divisions (STAD) dengan media software Pesona Edu. Penelitian ini adalah PTK (Penelitian Tindakan Kelas) yang dilaksanakan dalam dua siklus. Masing-masing siklusnya meliputi empat tahap yaitu perencanaan tindakan, pelaksanaan tindakan, evaluasi, serta refleksi. Instrumen penelitian ini berupa lembar observasi guna menilai aktivitas siswa dan tes untuk menilai hasil belajar matematika. Data yang sudah dikumpulkan kemudian dilakukan analisismenggunakan metode deskriptif. Berdasarkan analisis data penelitian diperoleh hasil belajar siswa meningkat dari nilai ketuntasan klasikal 25% dan rata-rata 62 pada siklus I menjadi ketuntasan klasikal sebesar 87,5% dan rata-rata hasil belajar 78,22 pada siklus II.Selain itu berdasarkan hasil observasi terdapat peningkatan aktivitas belajar siswa selama dilakukannya proses pembelajaran. Artinya pembelajaran matematikadengan model kooperatif tipe STAD memanfaatkan media software Pesona Edu dapat meningkatkan hasil belajar matematika dan aktivitas siswa, sehingga model  pembelajaran ini dapat menjadi alternatif dalam pembelajaran matematika.
Development of algorithm for receiving and decoding input signal using MTD decoder for subscriber terminals operating with low-orbit spacecraft
Authors:   JSC «Omsk Research Institute of Instrument Engineering», Sedunov D. P. , Zhunusova A. S. ,   JSC «Omsk Research Institute of Instrument Engineering»
Published: March 2021

The relevance of the topic is determined by the need to increase the speed of data transmission in satellite telecommunication systems through the use of noise-proof coding. The speed of data transmission in a radio channel is actually determined by the level of interference present due to the fact that the radio transmission medium is a public environment and other electronic devices operate in it. The purpose of the article is to develop an algorithm for encoding and decoding the input signal using a multithreshold decoder (MTD) of rigid solutions for subscriber terminals operating with low-orbit spacecraft (NCA), and its comparison with a conventional PC decoder «Messi». The comparison allows us to conclude that the application of the developed algorithm is justified in systems where more stringent requirements are imposed on the probability of an error in the communication channel, while the «Messi» decoder is more appropriate to use in the presence of restrictions on computational complexity
«Moral depreciation» of personal computer software as one of factors in reducing labor productivity at enterprise
Authors:   Department of Culture of the Omsk City Administration, Medvedev E. V.
Published: March 2021

In this article, the author examines the issue of «moral depreciation» of personal computer software and shows how it can affect the productivity of an organization. The relevance of the chosen topic is due to the fact that in the modern economy, with the advent of new products on the IT market aimed at optimizing work processes, low labor productivity is still observed in many companies, thereby arousing the interest of various researchers to understand this situation. The aim of the study is to analyze the processes of updating PC software at Russian enterprises and to study its impact on labor productivity. The main content of the study is the analysis of statistical data in the field of information and communication technologies in the context of various categories and groups. Special attention is paid to the analysis of the use of special programs at enterprises, as well as to the issues of personnel training on the use of these programs in their activities. As a result of the analysis, the author highlights the main points that arise in modern Russian companies due to the «moral depreciation» of software products, and also shows how they can affect their productivity. In conclusion, recommendations are offered to improve the current situation
Collective portrait of head of Omsk school for training infantry warrant officers
Authors:   Dostoevsky Omsk State University, Sablin A. Yu.
Published: March 2021

In the article, on the basis of the prosopographic method, the collective portrait of the head of Omsk schools for the training of infantry warrant officers is reconstructed. The study is based on army clerical records from the Russian State Military Historical Archive and the Historical Archive of the Omsk Region. As a result of the study, it is found that the head of Omsk school for training infantry warrant officers, as a rule, is a nobleman, of the Orthodox faith, a combat officer with the rank of staff captain to lieutenant general, who has experience of direct participation in hostilities
On issue of Nikifor Chernigovsky’s citizenship in connection with development of Amur region by Russia
Authors:   Omsk State Agrarian University named after P. A. Stolypin, Novikov M. S.
Published: March 2021

Interpretations of the events of the distant past of the Russian state have now become the arena of not only ideological, but also geopolitical struggle for territories and resources. One of the most pressing issues is the ownership of Siberia and its separate territories of Russia. The purpose of this article is to analyze the origin and citizenship of the participant in the development of the Amur region, Nikifor Chernigovsky, whose achievements, as a citizen of Poland and Ukraine, are claimed by some public figures of these states. The author concludes that, regardless of ethnic origin, Nikifor Chernigovsky participated in the Russian development of the Amur region neither as an initiative Polack or Ukrainian, nor as a foreigner in the Russian service, but as an Orthodox Christian and a citizen of the Russian state
Economic reliability of technological development
Authors:   Omsk State Technical University, Yakovleva E. V. , Terentyeva A. R. ,   Omsk State Technical University
Published: March 2021

Ensuring the economic reliability of industrial enterprises in the modern conditions of technological dynamics is a necessary and indispensable condition for the successful development and functioning of the enterprise in the long term. The results of the study aimed at substantiating the methodological approach to the formation of the mechanism of economic reliability of technological development of industrial enterprises are presented, which determines the theoretical significance and novelty of the results are shown. The basis of the study is general scientific methods of classification, generalization, comparison, analysis
Analysis of application of heat loss recovery system using organic Rankine сycle for drive of process equipment
Authors:   Omsk State Technical University, Kalashnikov A. M. , Kapelyukhovskaya A. A. ,   Omsk State Technical University, Obukhov I. D. ,   Omsk State Technical University
Published: March 2021

The analysis of heat exchange processes during cooling of the heated surface of the process equipment is carried out on the basis of the equations contained in the ANSYS Fluent package. When modeling heat exchange processes, the following boundary conditions are adopted: the temperature of the heated surface; the coil heat exchanger is located at a distance from the heated surface of the process equipment. From these results, we can draw the following conclusions: the increase in the temperature of the heated surface leads to the increase of the heating zone of the refrigerant with high capacity and, hence, to increase heat capacity; increasing the refrigerant flow rate, the lower the temperature of the refrigerant at the exit, but increases the thermal capacity; increasing the pressure of the heated refrigerant increases the thermal; this design of the heat exchanger allows you to achieve the necessary power for the operation of the drive by: changing the flow rate of the refrigerant, the excess pressure of the refrigerant, the number of elbows, as well as by installing a heat-reflecting casing
Parasites of animals and man in the southern Far East. Part 5. Annelida, Molluscs (Bivalvia) and Arthropoda (Crustacea). Parasite-host lists
Authors:   Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok- 22, 690022, Russia, Ermolenko A.V. , Volkova T.V. ,   Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok 690022, Russia
Published: March 2021

The book is the 5th part of catalogue “Parasites of animals and man in the southern Far East”, concerning to Hirudinea, larvae of freshwater Bivalvia and parasitic Crustacea. Hosts, data above localization, places of localities and some data about its hosts and localities outside the Region are listed for every species. Figures of some parasites are shown.
Perfil epidemiológico dos pacientes vítimas de trauma atendidos no município de Vitória da Conquista entre os anos de 2017 e 2018
Authors: Lôbo Gabriel Campos , Santos Cinara Dourado Pereira Correia , Rocha Thiago Reis , Da Silva Vandressa Lopes , Martins Ana Carolina da Silva Soares , Castro Gustavo Oliveira , Almeida Isadora Morais , Reis Caique Alves , Costa Indira da Natividade Leão , Menezes Maria Augusta Cunha
Published: March 2021

Objetivo: Este trabalho buscou descrever o perfil epidemiológico das vítimas de trauma atendidas no município de Vitória da Conquista, Bahia, no período de 2017 a 2018. Métodos: Trata-se de um estudo descritivo, quantitativo e retrospectivo, com medidas agregadas calculadas a partir de dados secundários. Para isso, foram utilizadas informações sobre óbitos e internações do Sistema de Informações sobre Mortalidade (SIM/SUS) e do Sistema de Informações Hospitalares (SIH/SUS). Resultados: Percebeu-se que os homens foram os mais acometidos (80,3%), em especial os jovens, sendo que aqueles com faxa etária entre 15 – 59 anos corresponderam a 90,4% de todas as internações dos pacientes do sexo masculino. Além disso, ficou evidente que o traumatismo intracraniano é a etiologia traumática que mais gera custos para o sistema de saúde, constituindo 51% do valor total. Conclusão: Foi possível perceber que os dados da cidade de Vitória da Conquista foram condizentes com os dados evidenciados na literatura, corroborando com o fato de que a população economicamente ativa, em especial os do sexo masculino, são os mais acometidos por trauma.
Excavations at Portchester Castle : Volume I: Roman
Authors: Cunliffe Barry
Published: March 2021

This is an account of excavations at Portchester Castle which took place under Barry Cunliffe in 1961–72. The volume deals with Roman features and material recovered from these excavations. Included are descriptions of structures representing the shore fort and specialist reports on the material recovered, including pottery, coins, metalwork, human and animal bones, and archaeobotanical remains. A concluding chapter summarizes the results of the work in a historical and regional perspective.
Memory, evidence, and artifice: the overseas journal in New Zealand post-war architectural historiography
Authors: Dudding Michael
Published: March 2021

This paper is based upon the premise that US architectural journals have had a much greater significance on the development of post-war New Zealand Modernism than has thus far been admitted to be the case. This is a rather difficult position to defend, not just because of a lack of hard evidence, but because the established orthodoxy posits the English Architectural Review as the ‘bible' to this generation of architects. The privileging of the Architectural Review in recent historiography is easily traced to a 1994 interview, conducted by Philippa Hoeta, with five architects who belong to that post-war generation. As a "fact," this privileging can easily be taken at face value: there is evidence in the many libraries and collections that subscribed to the Review; and there is the personal testimony provided in the interview itself. It is fairly safe to say that the statement is valid. But somewhere along the process, which sees simple fact become historiographic truth, other truths are overlooked, skirted around, rejected, or forgotten - perhaps there was more than one gospel? In the Hoeta interview, the conversation was redirected after only a few seconds - the journal discussion was not returned to. This paper restarts that discussion, extends it, and probes deeper to find the role and significance of the other journals that sat next to the Review on local architects' shelves. New Zealand architectural historiography has shifted into its second-generational phase; where the canon is largely set and new histories are able to operate uncritically within its scope, its structure and main narratives have become entrenched, and the key truths are almost self-evident. This paper picks up on one such truth, examines the historiographic process from which it arose, and investigates what has been obscured by uncritical adherence to its complete veracity.
Who was H Courtney Archer?
Authors: Halliday Jessica
Published: March 2021

Harry Courtney Archer's (1918-2002) article on architecture in New Zealand published in The Architectural Review in 1942 is recognised as part of the rich collection of publications that shaped the discourse about Modern architecture in this country (Clark & Walker 2000). On the face of it, Archer was an unlikely contributor to the discussion on New Zealand's architecture and proselytiser for Modernism: he had lived most of his 23 years to date in small rural towns, before the war, working in his father's flour mill in Rangiora and during the war moving between pacifist rural communities in the South Island. In this paper, I consider Archer's 1942 article, his sole contribution to architectural discourse, in relation to his personal background, asking where and how Archer formed his views and how he came to expound them in the journal the New Zealand architects of his generation acknowledged as "the bible" of contemporary architectural thought. I also analyse his article beyond its brief figuration of the New Zealand timber tradition as "frank" and therefore a source for the local manifestation of Modern architecture, by reflecting on his writing in light of his personal experiences, his avant-garde friends and his commitment to socialist movements.
Elegance and excesses: War, Gold and Borrowings: New Zealand Architecture in the 1860s
Authors: McCarthy Christine
Published: March 2021

The 1860s were an eventful time for architecture in New Zealand. On the eve of the decade, in 1859, William Mason became the first person to be a registered architect in New Zealand. The scene was thus set for the English idea of architecture as a profession to more substantially impact on our land. From the decade's beginning were the start of civil wars and the discovery of gold, with New Zealand's first major gold rush in Otago. It was war and gold which crudely distinguished the decade's histories of the North Island and South Islands.
The Vanishing Acheron House of Refuge. A Case of "Frontier Chaos"?
Authors: Kelly Clare
Published: March 2021

The Acheron House of Refuge built between 1863 and 1864 near the junction of the Guide River with the Acheron River in the South Island high country was one of a chain of accommodation houses on the Inland Stock Route between Nelson and Canterbury. In 1865 the Nelson Provincial Engineer John Blackett wrote to the Nelson Provincial Government that he feared "the entire destruction of the house without the possibility of it being prevented" and blamed "the character of some of the travellers who pass this road." By the end of 1865, it was destroyed without trace. This paper considers incidents of lawlessness at the accommodation houses in the mid 1860s and the brief existence of the Acheron House of Refuge. It questions whether its demise was the result of "frontier chaos," a term which was first used by historian Miles Fairburn in 1989 to describe how rapid frontier expansion in New Zealand had scattered settlers and engendered transience, loneliness and lawlessness. Using settler diaries, letters and manuscripts this paper considers Fairburn's "frontier chaos" theory. It examines his assertions that in the New Zealand settler world prior to 1890 "seldom ... were goods and services exchanged," and that an atomised New Zealand settler society had "no institutions ... to facilitate mixing and meeting" (Fairburn "Local Community or Atomised Society?" pp 169-170,192,195,206,217). This paper concludes that incidents of lawlessness at the accommodation houses were linked to the South Island gold rushes, were short term and often the result of ill-prepared men desperate to survive in an unforgiving climate. At the accommodation houses on the Nelson to Canterbury Inland Stock Route travellers, keepers and neighbours shared an unwritten code of reciprocity. These accommodation houses formed the unofficial nuclei of small, loose-knit high country communities.
"...with their usual cunning": gleaning architectural tactics from 1860s warfighting pa [paa] [pah]"
Authors: Schmidt Tyson
Published: March 2021

Pā have been reaped by other disciplines. Archaeologists have poured over them like coroners, enquiring into what was and how it came to be, dissecting the typology, studying and debating its purposes, its uses, its spread, its numbers. Military historians have drilled into the role pā played in individual battles, campaigns, and even distant conflicts. Architecture prefers the whare, with only a handful of architects fossicking around pā – Sarah Treadwell's enquiry into Gate Pa, Amanda Yates' examination of monumental interior, Rewi Thompson's and Royal Associates' referencing of parts of pā in their work. This article extends the architectural fossicking by looking at what can be learnt from warfighting pā of the 1860s – a decade where they reached a nadir of design and use as a result of cultural conflict.
Effect of Practices Executed by Monitoring Education Assistants on Elementary School Teachers’ Mental Health
Authors: Munawar Sumaira , Sittar Khadija , Malik Misbah
Published: March 2021

Teachers’ mental health not only increases their efficiency, professional growth and development but also their effects their personality. Punjab education department established Monitoring education authorities to improve quality of education by monitoring quality indicators.  Monitoring practices of Education Assistants may affect the mental health of teachers on their workplaces which culminate in low performance. The objective of this study was to determine effect of monitoring education authorities’ practices on school teachers’ mental health. 300 elementary school teachers were selected for data collection through cluster sampling technique in District Sheikhpura. Data collection was done through survey questionnaire with 17 statements. Findings revealed that a significant correlation between teachers’ performance and motivational techniques used by their heads. A pilot study was conducted to validate cronbach's alpha 0.86 which statistically significant. Furthermore, following practices of Monitoring education authorities are effecting mental health index .On the bases of these findings that it is recommended that the government might  give training to MEAs  for  improving  their behaviours  during their visits in schools.
CRITICAL DISCOURSE ANALYSIS TOWARDS A.A. NAVIS’ SHORT STORY OF “DATANGNYA DAN PERGINYA”
Authors: Nopriansah Nopriansah , Sembiring Lina Tri Astuty Beru , Sembiring Silvia Erlin Aditya
Published: March 2021

Penelitian ini merupakan penelitian kualitatif deskriptif yang bertujuan untuk memahami fenomena sosial yang muncul dalam cerpen tersebut. Prosedur analitisnya tidak menggunakan prosedur analisis statistik. Data dikumpulkan dari sebuah cerpen berjudul “Datangnya dan Perginya” yang ditulis oleh A.A.Navis pada tahun 1950-an. Data tersebut adalah kata-kata yang tertulis dalam cerpen tersebut. Setelah data diperoleh, kemudian dianalisis dengan menggunakan teknik analisis data menurut Sudaryanto. Teknik yang digunakan dikenal dengan teknik segmentasi konstituen langsung. Berdasarkan teknik tersebut, data bahasa dapat dianalisis dengan mengatur kombinasi kata yang bermakna secara intuitif dan mengklasifikasikannya. Peneliti menemukan bahwa ada 8 gaya bahasa yang digunakan dalam cerpen karangan A.A. Navis tersebut. Kedelapan gaya bahasa tersebut adalah Personifikasi, Hiperbol, Anastrof, Satir, Simile, Metafora, Anafora, dan Pleonasme. Secara sintaksis, pola kalimat VSO dan VOS banyak digunakan selain pola SVO yang umum digunakan dalam tata bahasa Indonesia kontemporer. Untuk tahap pengolahan analisis, interpretasi yang muncul adalah penggunaan berbagai bentuk atau gaya bahasa dan struktur sintaksis yang berbeda untuk membentuk keindahan tersendiri. Selain itu, istilah religi yang mewarnai cerpen ini mendukung beberapa makna. Tahapan analisis sosial dijelaskan oleh jenis-jenis unsur yang dimunculkan yaitu kritik terhadap realitas sosial.
GRAPE VARIETY OF REGAL SEEDLESS GROWN IN THE LOWER DON CONDITIONS
Authors:   Timirâzevskaâ selʹskohozâjstvennaâ akademiâ, KRASOKHINA S.I.
Published: March 2021

Nowadays, table grape consumers prefer seedless grape varieties, so the market promotion of seedless varieties continues at a rapid pace. Responding to consumer preferences, the breeders have developed numerous various-flavour seedless varieties with large berries and bunches. The study purpose is to assess the prospects of cultivation and use in breeding of a new seedless Regal Seedless grape variety bred in South Africa. By origin, this is an intraspecific hybrid of the species V. vinifera L., with an early middle ripening period. The author carried out the variety study to assess agrobiological, economically valuable traits and properties and compiled a short ampelographic description. The study was carried out in 2017–2019 at the experimental vineyard of Ya.I. Potapenko All-Russian Research Institute for Viticulture and Winemaking – Branch of Federal Rostov Agricultural Research Center. The study focuses on non-irrigated covered and grafted vineyards, the Kober 5BB rootstock, the planting pattern of 3 × 1.5 m, and a fan-shaping thankless bush. As to a set of positive parameters (yield, high vendebility, natural seedlessness without the use of gibberellin, large size characteristics, and good taste), the Regal Seedless variety is of certain interest for industrial viticulture, and this variety can also be recommended for use in further breeding as a source of seedless and large berries. According to preliminary studies, the ripened berries of this variety should not be kept long on the bush to prevent peel browning and deterioration in vendebility. The variety is recommended as a highly commercial table grape without the PPP use, but it is not suitable for the production of raisins due to insufficient sugar accumulation. It is recommended that the variety should be grown in areas of sufficient moisture or as an irrigated crop.
CHANGING APPROACHES TO SUPPORTING CONSUMER COOPERATION: FROM ORGANIZATIONAL FORM TO THE PROCESS OF COOPERATION
Authors:   Timirâzevskaâ selʹskohozâjstvennaâ akademiâ, GATAULINA E.A. , ANTONOVA M.P. , POTAPOVA A.A.
Published: March 2021

The development of traditional agricultural consumer cooperatives, created within the framework of Federal Law-193, in Russia is extremely slow. This is facilitated by a number of economic, institutional and psychological constraints. Accordingly, despite the rapid growth of production in peasant farms, and the still significant share of households in the gross agricultural output, for the most part they are not members of agricultural consumer cooperatives. However, cooperative interaction is especially important for small businesses. At the same time, in practice, there are numerous forms of cooperation between small agricultural producers that do not fit into the framework of traditional cooperatives. The identification and systematization of these emerging “bottom”forms, recommendations for their support is, therefore, an urgent task. This paper systematizes casestudy materials by types of informal cooperation outside the framework of consumer cooperatives, obtained during field research in 2019. Based on the analysis of measures of state support within the framework of federal and regional programs for the development of agriculture, individual measures have been identified that contribute to overcoming the small-scale production of small businesses. At the same time, the analysis showed the absence of measures to support the already existing non-traditional forms of cooperative interaction. Recommendations for supporting these forms are formulated.
Алгоритм анализа формы сигналов ЯМР для определения активационных параметров молекулярной динамики парамагнитных комплексов лантаноидов: конформационная динамика в комплексах тулия с макроциклическим лигандом DOTA
Authors: Бабайлов С.П. , Заполоцкий Е.Н.
Published: March 2021

Детально описан алгоритм и предложено программное обеспечение для ПК по исследованию молекулярной динамики парамагнитных комплексов лантанидов методом динамического ЯМР в рамках методики анализа формы сигнала с учетом температурного изменения лантанид-индуцированных сдвигов. В качестве примера применения данного алгоритма проведено исследование процессов конформационной динамики комплексов [Tm(H2O)(DOTA)]–, обусловленной взаимопревращением двух конформеров SAP и TSAP. Соответствующее значение свободной энергии активации Гиббса ΔG≠298 составило 65±2 кДж/моль, что согласуется с опубликованными данными.
Кристаллические структуры полибромидных солей бис(пиридил)алкан-дикатионов
Authors: Адонин С.А.
Published: March 2021

Реакции растворов 1,1'-(алкан-1,х-диил)-бис(пиридиний) дибромидов ((PyCx)Br2) с 1M Br2 в HBr ведут к образованию трибромидов (PyCx)(Br3)2 (x = 3 (1), 4 (2), 5 (3)) и пентабромида (PyC6)(Br5)2 (4) соответственно, строение которых изучено методом РСА. В структуре 4 присутствуют нековалентные взаимодействия Br⋯Br, связывающие анионы Br5– в двухмерные супрамолекулярные ассоциаты.
Синтез и строение тетраэдрического кластерного комплекса рения с ядром {Re4(PO)4}4+
Authors: Пронин А.С. , Брылёв К.А. , Штрёбеле M. , Майер Х.-Ю. , Миронов Ю.В.
Published: March 2021

Высокотемпературной реакцией иодида рения (III) и красного фосфора с избытком цианида натрия и последующей перекристаллизацией из водного раствора получен новый тетраэдрический анионный кластерный комплекс [{Re4(PO)4}(CN)12]8–, который выделен в виде соли состава Na8[{Re4(PO)4}(CN)12]·18H2O·MeOH. Строение полученного соединения установлено методом РСА. Соединение кристаллизуется в моноклинной сингонии, пространственная группа P21/n, с параметрами элементарной ячейки a = 26.826(3) Å, b = 11.4975(12) Å, c = 29.141(3) Å, β = 97.879(2)°, V = 8903.2(16) Å3, Z = 8.
MANIFESTATIONS OF SUBJECTIVITY AND ADAPTATION OF ADOLESCENTS IN DIFFERENT PERIODS AFTER THE DIVORCE OF PARENTS
Authors:   Saint Petersburg State University, Golovey Larisa А. , Veselova Elena K. ,   Herzen State Pedagogical University, Galasheva Olga S. ,   Saint Petersburg State University
Published: March 2021

The peculiarities of subjectivity and adaptation of adolescents at different stages of the crisis of the family system caused by the divorce of the parents are examined in the article. In the post-divorce crisis of the family system, three phases are distinguished: «acute» (lasting up to a year); intermediate (from one to two years) and stabilization phase (two years after divorce). The study tests the hypothesis that in a situation of crisis in the family system there is a slowdown in the formation of subjective qualities and a violation of the socio-psychological adaptation of adolescents. The assumption is tested that in different phases of the post-divorce process the indicators of subjectivity and sociopsychological adaptation differ: they are more pronounced in the acute phase and decrease in the stabilization phase. The purpose is to study the features of the formation of subjectivity and indicators of social and psychological adaptation of adolescents in the acute phase and the phase of stabilization after the parents’ divorce process. The following methods were used: the method of studying subjectivity in adolescence («MEDOS-3», a modification of Ovcharova); methodology «Socialization of the student’s personality» (Rozhkov). Sample: 145 adolescents aged 14-16 years old, including 52 (31 girls, 21 boys) - in the «acute» phase after divorce and 93 (59 girls, 34 boys) - in the stabilization phase. The results of the study revealed a slowdown in the formation of subjectivity and a decrease in the indicators of social and psychological adaptation of adolescents in the situation of the parents’ postdivorce process. There were obtained significant differences in the indices of subjectivity and adaptation of adolescents in different phases of the crisis of the family system. In the acute phase of the crisis, a decrease in the general level of subjectivity, subjectivity in the spheres of communication and activity was revealed, as well as a deterioration in socio-psychological adaptation according to the criteria: «adaptation», «autonomy» and «social activity». In the stabilization phase, there is no decrease in the level of subjectivity; higher adaptation indices were found according to the same criteria. Thus, the situation of the parents’ divorce is a difficult life situation for a teenager, its acute phase is most traumatic; in the stabilization phase, two years after the divorce, the severity of the crisis in the family system decreases.
The relative contribution of emotional sensitivity, anxiety and depression in forecasting quality of life of university students
Authors:   College of Education, Menofia University, Shoeib Ali
Published: March 2021

The study aimed at investigating the relationship between quality of life and both general anxiety, emotional sensitivity and depression among university students. It also aimed at investigating the relative contribution of emotional sensitivity, general anxiety and depression in forecasting quality of life of university students. The study aimed also at identifying the differences in the quality of life according to levels of general anxiety, depression and emotional sensitivity. It also aimed at identifying the differences between males and females in the variables: quality of life, general anxiety, depression and emotional sensitivity. The study also identified the degree of prevalence of these variables among university students. The study used a sample of (1013) males and females studying at the College of Education. It also modified into Arabic the study tools: general anxiety, depression, emotional sensitivity and quality of life and ensured its consistency and validity. The results showed that the most predictive factors for quality of life are: general anxiety by 35.6%, depression by 31.1% and emotional sensitivity by 19%.
E-Learning as a prerequisite of 21st century skills and training of mathematics teachers
Authors:   Women’s college Ain shams university, Abd El-Hakeem Shereen Salah
Published: March 2021

The present article aims at identifying the challenges and the skills of 21st century; and how can the student teachers acquire these skills. What are the expectations of these students in the light of the 21st century skills? So, educators should develop the teaching performance of math student teachers. The present article also presents TPACK model which assures the integration between technology and subject content as prerequisites for 21st century effective teaching. Besides, the recommendations of embedding the 21st century skills in pre and during preparing programs for math teachers.
Reggio Emilia Approach to kindergarten in Italy and the possibility of benefiting from it in the Kingdom of Saudi Arabia - Comparative analytical study
Authors:   University of Jeddah, Alharbi Rawan Saad , Alsani Mona ,   Associate Professor, University of Jeddah, Saudi Arabia, M.alsani@hotmail.com
Published: March 2021

Reggio Emilia Approach is one of the contemporary trends in child raising, which has spread widely around the world, and in light of this the study aimed to develop the Reggio Emilia Approach in the Kingdom of Saudi Arabia in light of the Reggio Emilia Approach in Italy, by studying the Reggio Emilia Approach in Italy and the Kingdom Saudi Arabia in terms of (philosophy, its educational content), and the study used the comparative approach to George Bereday’s Approach. After that, the study made suggested recommendations for developing the Reggio Emilia Approach in the Kingdom of Saudi Arabia.
The analytic hierarchy and analytic network measurement processes: Applications to decisions under Risk
Authors: Saaty Thomas L.
Published: March 2021

Mathematics applications largely depend on scientific practice. In science measurement depends on the use of scales, most frequently ratio scales. A ratio scale there is applied to measure various physical attributes and assumes a zero and an arbitrary unit used uniformly throughout an application. Different ratio scales are combined by means of formulas. The formulas apply within structures involving variables and their relations under natural law. The meaning and use of the outcome is then interpreted according to the judgment of an expert as to how well it meets understanding and experience or satisfies laws of nature that are always there. Science derives results objectively, but interprets their significance is subjectively. In decision making, there are no set laws to characterize structures in which relations are predetermined for every decision. Understanding is needed to structure a problem and then also to use judgments to represent importance and preference quantitatively so that a best outcome can be derived by combining and trading off different factors or attributes. From numerical representations of judgments, priority scales are derived and synthesized according to given rules of composition. In decision making the priority scales can only be derived objectively after subjective judgments are made. The process is the opposite of what we do in science. This paper summarizes a mathematical theory of measurement in decision making and applies it to real-life examples of complex decisions.
The assessment of poultry welfare using partial least squares-path modelling (PLS-SEM): a modeling the effects of physical activity and stress on growth
Authors: YALÇİN Hamza , DOĞAN Zeki , ŞEN Sedat , ÇETİN Mehmet , GÖÇMEN Mehmet , KOÇYİĞİT Abdurrahim
Published: March 2021

Poultry welfare is closely related to human health and animal production which is a sensitive process. While several statistical methods are available to measure observed variables (stocking density), unobserved (latent) variables such as emotional, psychological situations are typically analyzed using factor analysis. In recent years, structural equation modeling (SEM) has been used effectively in many fields such as agriculture and livestock. SEM provides an estimation of relationships between latent variables that cannot be measured directly. Most of the studies published on poultry welfare highlighted the need to determine causal relationships between latent variables (growth, physical activity, biological stress). Here, we demonstrate that PLS-SEM analysis was used to examine the relationship between biological stress, physical activity, and growth in livestock. A three-factor model was conducted with 96 animals. The PLS-SEM results revealed that 65.2% of growth can be predicted by the independent variables (R2 = 0.652), and that physical activity (γ = 0.698) was found to have more effect than biological stress (γ = 0.176) on growth. Also, physical activity was determined as the main variable for the evaluation of biological stress (γ = 0.546, R2 = 0.298) and growth. Overall, the research showed the suitability of SEM for the assessment of growth and biological stress.
STUDI KINERJA DAERAH IRIGASI IRENG DAYE, KECAMATAN GUNUNG SARI KABUPATEN LOMBOK BARAT
Authors: Salehudin Salehudin , Rohani Rohani , Wirahman Lalu , Hasyim Hasyim , Wahyuningsih Widya
Published: March 2021

Daerah Irigasi Ireng Daye memiliki luas baku 192,81 ha dengan luas Daerah Irigasi (DI)  138,57 ha. Sumber air utama yang digunakan untuk mengairi areal irigasi Ireng Daye berasal dari sungai Jangkok. Kondisi Bendung Ireng Daye serta salurannya saat ini mengalami penumpukan sedimentasi berupa endapan lumpur dan sampah, terjadi kerusakan pada pintu bendung, bangunan penguras dan sebagian ruas saluran primer maupun skunder yang disebabkan oleh penumpukan sampah dan sedimen pasir dan lumpur , disebagian besar saluran primer aktifitas warga sekitar yang memanfaatkan saluran dengan memelihara keramba ikan, permasalahan diatas dikhawatirkan akan berdampak pada Kinerja Daerah Irigasi Ireng Daye. Dengan analisis Indeks Kinerja PERMEN PU No.32/PRT/M/2007 tentang Pedoman Operasional dan Pemeliharaan , dapat kita ketahui kondisi kinerja daerah irigasi Ireng Daye dengan cara memperhatikan beberapa parameter yang digunakan yaitu kondisi fisik, produktifitas tanam, sarana penunjang, organisasi personalia, dokumentasi, dan P3A.

Hasil analisis  indeks   kinerja   daerah   irigasi  Ireng Daye pada tahun 2017  menurut   PERMEN   PU No.32/PRT/M/2007 adalah sebesar 53,43% , lebih kecil dari nilai indeks persyaratan yang ditentkan dalam kondisi normal sebesar 77,50% (Permen PU No.32/PRT/M/2007), sehingga dapat disimpulkan bahwa indeks kinerja daerah Irigasi Ireng Daye kurang maksimal dan diperlukan perhatian khusus dari pemerintah maupun masyarakat untuk segera melakukan tindakan berupa renovasi saluran dan bangunan yang ada dalam skema jaringan irigasi Ireng Daye. Rencana usulan kerja yang ditawarkan dalam analiis ini adalah mengangkat sedimen sepanjang saluran primer dan sekunder, memperbaiki semua bangunan bagi beserta pintu bangunan, dan saluran dilapisi dengan beton yudith.
KUAT TEKAN DAN KUAT GESER BAMBU KOMPOSIT SETEMPAT BERPENGISI PLASTIK DAN SERBUK GERGAJI KAYU
Authors: Sugiartha I Wayan , Rofaida Aryani , Handayani Teti , Saptaningtyas Rini S
Published: March 2021

Bambu merupakan salah satu alternatif bahan bangunan ramah lingkungan,yang dapat menggantikan kayu. Disamping memiliki banyak keunggulan, bambu juga memiliki kelemahan yaitu kuat geser sejajar seratnya rendah. Solusi untuk mengatasi kelemahan tersebut adalah dengan memberikan bahan pengisi pada ruas bambu disekitar sambungan sehingga terjadi komposit setempat. Penelitian ini bertujuan untuk mengetahui sifat mekanik (kuat tekan dan kuat geser) bambu komposit setempat berpengisi plastik Polyethylane Terephthalate (PET) dan serbuk gergaji kayu. Lima variasi benda uji dibuat yaitu BK-0 (bambu tanpa pengisi sebagai kontrol), BK-1 (bambu berpengisi plastik PET), BK-2 (bambu berpengisi plastik PET + dilabur perekat), BK-3 (bambu berpengisi plastik PET + serbuk gergaji kayu), BK-4 (bambu berpengisi plastik PET + serbuk gergaji kayu dan dilabur perekat). Hasil pengujian memberikan nilai kuat tekan  bambu dari  BK-0 sampai dengan BK-4 berturut-turut sebesar 22.7 MPa, 29.4 MPa, 32.7 MPa, 33.2 MPa, 35.7 MPa atau terjadi peningkatan kuat tekan terhadap  BK-0 berturut-turut sebesar 30%, 44%, 46%, dan 57%.  Sedangkan nilai kuat geser bambu dari BK-0 sampai dengan BK-4 berturut-turut sebesar  4.55 MPa, 5.00 MPa, 5.05 MPa, 5.40 MPa, 5.50 MPa atau terjadi peningkatan kuat geser terhadap  BK-0 berturut-turut sebesar 10%, 11%, 19%, dan 21%.
Predictors of physical activity for weekdays and weekends among adolescent – a cross-sectional study in Sarawak, Malaysia
Authors: CHEAH WHYE LIAN , HAZMI HELMY , CHANG CHING THON
Published: March 2021

Background: This study aimed to describe the patterns of physical activities both at weekends and on weekdays and to identify their associated factors. Material/Methods: This was a cross-sectional study conducted among secondary school students aged 13-15 years old in Kuching Division, Sarawak, Malaysia. A self-administered questionnaire was used to collect socio-demographic information and to measure perceived barriers, self-efficacies and social influences. Anthropometric measurements were taken and used to determine BMI-for-age, while pedometers were used to assess the physical activity levels. Data were analyzed using SPSS. Results: A total of 474 students from six secondary schools participated. About 16% of the respondents were overweight and obese, majority of them males. The mean BMI was 21.21 ±12.93, higher among males. The mean steps per day were 6251.37±3085.31, with weekends recorded a higher number of steps. The number of steps among males was higher than among females. On weekdays, self-motivation scores significantly predicted the participants’ number of steps/physical activity rate (b = 521.43, 95% CI -72.78 to 1050.19). At weekends, lack of interest and knowledge scores (b = -427.82, 95% CI -837.72 to 17.92) and making choices scores (b = 737.41, 95% CI -197.94 to 1276.88) were significant to predict the number of steps/physical activity levels. Conclusions: These findings indicated the importance of investigating predictors of physical activity for weekdays and weekends. Thus, efforts should focus on how to motivate adolescents to be more physically active targeting the identified predictors for weekdays and week ends.
The importance of functional diagnostics in preventing and rehabilitating gymnast injuries with the assistance of the tensiomyography (TMG) method: a case study
Authors: ATIKOVIĆ ALMIR , PAVLETIĆ MITIJA SAMARDŽIJA , TABAKOVIĆ MUHAMED
Published: March 2021

Background: The tensiomyography assessment offers information, in the time domain, regarding the following parameters: maximal radial deformation or displacement of the muscle belly, contraction time, reaction time, sustain time and relaxation time. The aim of this study is to provide information about muscle stiffness, the mechanic and contractile properties using the TMG muscles after 4 months rehabilitation process gymnast. Material/Methods: Four muscles were chosen on both lateral sides involved in artistic gymnastics performance: biceps femoris, erector spinae, gluteus maximus, rectus femoris. The testing sample in this study was taken from the Croatian Republic’s senior representative who won third place 2012 and eighth place 2015 in the floor routine at the ECh. Results: The testing and measuring took place after the subject injured the lumbar region of the spinal cord and after a four-month prevention exercise program. After the first two stages of measuring, the differences can be found in: BF: -7%; ES: +17%; GM: -8%; RF: +11%. Generally speaking, a dependent t-test did not reveal significant differences in between the first and second measurement point (t = 1.941, df = 39, P < 0.059). Conclusions: This approach can be used to investigate top athletes who are in the process of training for muscle recovery as a result of skeletal muscle injury.
Task dependency of movement regulation in female gymnastic vaulting
Authors: HEINEN THOMAS , ARTMANN ISABELL , BRINKER ANJA , NICOLAUS MARC
Published: March 2021

Background: In gymnastics vaulting it is thought that gymnasts regulate their run-up on the basis of visually perceived environmental information, such as the position of the springboard, with the aim of an accurate foot placement on the springboard. The question, however, arises if these regulative processes found in gymnastics vaulting can be generalized to other tasks with similar demands but differing dynamics? Material/Methods: To answer this question, ten female gymnasts were asked to perform two target-directed gymnastics tasks that were similar in task demands but differed in task dy-namics. When performing the two tasks, the position of the springboard was manipulated without the gymnast’s awareness. Results: Results revealed that manipulating the position of the springboard had neither an effect on the distance of the hurdle, nor on the placement of the feet on the spring-board during the reactive leap. The two parameters, however, clearly differed between experimental tasks. Additionally, regulation during run-up occurred on average one step earlier when performing the tucked leap on the balance beam. Conclusions: It can be concluded from the results that gymnasts exhibit a different movement behavior when performing tasks with similar demands but different dynamics, thereby integrating environmental information in the regulation of the run-up and the reactive leap from trial to trial.
Relationships between motor abilities and volleyball performance skills in 15-year-old talent-identified volleyball players
Authors: MROCZEK DARIUSZ , SUPERLAK EDWARD , KAWCZYŃSKI ADAM , CHMURA JAN
Published: March 2021

The aim of this study is to determine synergistic motor outcomes understood as sets of mutually dependent players’ motor abilities affecting the efficacy of performance skills of young volleyball players. The study was carried out during a national volleyball tournament for 150 boys aged 14-15 years. The matches were recorded with two cameras placed 10 m behind the end line, 1.6 m above the floor. The following parameters were assessed: attack efficacy, block efficacy, serve efficacy. The first dependent variables were players' actions that most significantly affected the set outcome, i.e. serves, blocks and attacks. The greatest differences were found among players' serve results, where – with the exception of ineffective serves – the index of variability ranged from v = 67.14 (counter-effective serve) to v = 80.23 (effective serve). The study showed that serving and attacking effectiveness is directly determined by standing jumping ability, while blocking efficacy is affected by the height of the running vertical jump.