bluuebunny/crossref_metadata_2025 huggingface dataset:
VARIABLE FORMATION PLASTICITY MATRICES OF A THREE-DIMENSIONAL BODY WHEN IMPLEMENTING A STEP LOADING PROCEDURE
Authors:   Volgograd State Agrarian University, Volgograd, Russia, Klochkov Yu. V. , Nikolaev A. P. ,   Volgograd State Agrarian University, Volgograd, Russia, Vakhnina O. V. ,   Volgograd State Agrarian University, Volgograd, Russia, Sobolevskaya T. A. ,   Volgograd State Agrarian University, Volgograd, Russia, Klochkov M. Yu. ,   Lomonosov Moscow state University, Moscow, Russia
Published: June 2021

В настоящее время задача создания и совершенствования вычислительных алгоритмов по определению напряженно-деформированного состояния (НДС) техносферных объектов и систем с учетом физически нелинейной стадии работы материала конструкций и их элементов является достаточно актуальной. На основе деформационной теории пластичности представлен вариативный подход к формированию матрицы пластичности на шаге нагружения для трехмерного тела. Рассмотрен вариант получения матрицы пластичности с применением операций дифференцирования ковариантных компонент тензора напряжений по ковариантным компонентам тензора деформаций. В качестве альтернативного ему разработан вариант формирования матрицы пластичности на шаге нагружения, основывающийся на гипотезе пропорциональности компонент девиатора приращений напряжений компонентам девиатора приращений деформаций для трехмерных тел. Использование такого варианта формирования матрицы пластичности на шаге нагружения в вычислительных программных комплексах позволяет значительно упростить процесс программирования и сделать его более понятным потенциальным пользователям вычислительных комплексов при проектировании и реконструкции техносферных объектов и систем.
OPTIMIZATION OF THE RUBBER ELEMENT OF THE RUBBER-METAL HINGE OF A TRACKED SYSTEM
Authors:   Polzunov Altai State Technical University, Barnaul, Russia, Korostelev S. A. , Korostelev D. S. ,   Novosibirsk State University, Novosibirsk, Russia
Published: June 2021

В статье представлена формулировка задачи оптимального проектирования резиновых элементов шарнирного соединения гусеничного движителя и ее решение. Поиск оптимальной конструкции опирается на результаты расчета напряженно-деформированного состояния резинового элемента, вызванного сборкой резинометаллического шарнира и нагрузками во время эксплуатации. В качестве функции цели выбрана удельная энергия деформации резины, в качестве варьируемых параметров - геометрические параметры резинового элемента в свободном состоянии и после сборки шарнирного соединения. Постановка оптимизационной задачи накладывает ограничения на параметры проектирования в виде неравенств. Представлены результаты решения задачи оптимального проектирования и результаты сравнительных стендовых испытаний на долговечность.
STUDY OF THE ANTIVIBRATION SUSPENDED SEAT OSCILLATIONS WITH QUASI-ZERO STIFFNESS EFFECT UNDER SINUSOIDAL EXCITATION
Authors:   The Siberian State Automobile and Highway University, Omsk, Russia, Korytov M. S. , Shcherbakov V. S. ,   The Siberian State Automobile and Highway University, Omsk, Russia, Titenko V. V. ,   Omsk State Technical University, Omsk, Russia, Pochekueva I. E. ,   The Siberian State Automobile and Highway University, Omsk, Russia
Published: June 2021

Актуальная задача уменьшения вибраций, передаваемых человеку-оператору строительной или дорожной машины при осуществлении рабочих операций, решается в том числе при помощи проведения исследований на математических моделях. Моделирование колебаний виброзащитной подвески кресла человека-оператора при помощи численного решения систем обыкновенных дифференциальных уравнений остается одним из основных способов их исследования, применяемым, в частности, для верификации дискретных математических моделей. В этой связи актуальна задача определения рационального значения максимального шага интегрирования при численном решении систем обыкновенных дифференциальных уравнений, описывающих колебания кресла с человеком-оператором на виброзащитной подвеске. С использованием дифференциального уравнения поступательных колебаний массы на подвижном основании, разработана дискретная математическая модель кресла с человеком-оператором, совершающего вынужденные вертикальные колебаний при кинематическом возбуждении движений основания...
EFFECT OF HEAT TRANSFER ON THE STRESS-STRAIN STATE OF THE MATERIAL CONSIDERING THE FINAL HEAT PROPAGATION VELOCITY
Authors:   Tula State University, Tula, Russia, Proskuriakov N. E. , Lopa I. V. ,   Tula State University, Tula, Russia
Published: June 2021

Анализируются результаты расчетов различных волновых задач. Показано, что деформационный нагрев материала интенсивен вблизи граничной поверхности и быстро уменьшается при незначительном удалении от нее. Делается вывод, что для получения точных решений волновых задач в неизотермической постановке необходимо учитывать перераспределение температуры в материалах из-за теплопередачи и его влияние на напряженно-деформированное состояние материалов различных конструкций. Приводятся результаты расчетов. Отмечена чувствительность решения к изменению удельной теплоемкости и коэффициента температуропроводности, входящих в волновое уравнение теплопроводности.
COMPARISON OF MODELING THE NATURAL FREQUENCIES AND VIBRATION MODES OF A SOUND ISOLATION PANEL FRAGMENT WITH FULL-SCALE TESTS
Authors:   Omsk State Technical University, Omsk, Russia, Russkikh G. S. , Sokolovskiy Z. N. ,   Omsk State Technical University, Omsk, Russia, Romanenko E. A. ,   Omsk State Technical University, Omsk, Russia
Published: June 2021

В статье рассмотрены результаты моделирования собственных частот и форм колебаний, выполненного в программном комплексе Ansys Workbench в сравнении с натурным экспериментом. Целью исследования является верификация модели, построенной в Ansys Workbench. Результаты позволяют сделать заключение об адекватности модели и возможности ее применения для решения задачи определения собственных частот и форм колебаний
ELASTIC WAVE PROPAGATION IN A CYLINDER WITH EXTERNAL ACTIVE FRICTION
Authors:   Institute of Mechanics and Seismic Stability of Structures named after M. T. Urazbayev, Tashkent, Uzbekistan, Sultanov K. S. , Khusanov B. E. ,   Institute of Mechanics and Seismic Stability of Structures named after M. T. Urazbayev, Tashkent, Uzbekistan, Rikhsieva B. B. ,   Institute of Mechanics and Seismic Stability of Structures named after M. T. Urazbayev, Tashkent, Uzbekistan
Published: June 2021

Рассматривается распространение волн в упругом цилиндрическом теле, взаимодействующем с внешней движущейся абсолютно недеформируемой средой (обоймой) при ударной нагрузке на передний торец. Сила трения, возникающая на контактной поверхности, прямо зависит от параметров распространяющихся волн и в силу движения внешней среды - она является активной. Поставленная одномерная задача решается аналитически методом характеристик. Получены точные решения распространения волн напряжений в цилиндре. Обнаружено увеличение параметров волн со временем и с расстоянием, определено влияние параметров внешней нагрузки и физико-механических характеристик цилиндра на параметры увеличения распространяющихся волн. Обсуждены место и время выравнивания скоростей частиц цилиндра и движения внешней среды, а также напряженное состояние частиц цилиндра.
BIOENERGETIC EFFICIENCY OF SEED PRODUCTION OF CORN HYBRIDS
Authors:   RosNIISK ", Babushkin D.D. ,   Possorgo", Zaytsev S.А. ,   RosNIISK "Possorgo"
Published: June 2021

We conducted the comparative analysis of bioenergetic efficiency of production of seeds of corn hybrids developed in breeding centers – participants of the Coordination Council on breeding and seed production of corn, included into the State register of breeding achievements permitted for production in the Russian Federation. We revealed corn hybrids with relatively high yield of gross energy: Neon 147 МV (71.4 GJ/ha), Katerina SV (68.4 GJ/ha), and crude protein: Neon 147 МV (0.45 t/ha), RNIISK-1 (0.43 t/ha), Baykal (0.44 t/ha).
THE TESTING OF SSR MARKERS OF GENES CONTROLLING RESISTANCE TO P. HALSTEDII AND THE SELECTION OF OPTIMAL CONDITIONS FOR PCR
Authors:   V.S. Pustovoit All-Russian Research Institute of Oil Crops, Badyanov E.V. , Ramazanova S.A. ,   V.S. Pustovoit All-Russian Research Institute of Oil Crops (VNIIMK)
Published: June 2021

Downy mildew is one of the most harmful diseases of sunflower. The most effective measure of this disease control is the development of resistant varieties and hybrids. The use of molecular markers, in particular DNA markers, allows to control the presence of dominant resistance genes at each stage of breeding. We carried out the selection of the optimal method for the isolation of sunflower DNA and the selection of the optimal temperature regimes of amplification for 10 pairs of primers developed to mark the Pl6, Pl8, Pl13, and PlArg genes. Preliminary, we identified 13 allelic variants that are suitable for DNA genotyping of Helianthus annuus by these loci.
ESTIMATION OF COMBINING ABILITY OF CORN LINES IN DIALLELE CROSSES BY AN AMOUNT OF SEEDS FROM A COB
Authors:   RosNIISK ", Volkov D.P. ,   Possorgo", Zaytsev S.А. ,   RosNIISK "Possorgo"
Published: June 2021

We estimated combining ability of inbred corn lines by a trait amount of seeds from a cob’. Amount of seeds from a cob is one of the important traits for plant selection with a purpose to increase their yield. Prevalence of additive effects of gens in a control of this trait is noted. We revealed lines with low and high meanings of combining ability by an amount of seeds from a cob.
СОДЕРЖАНИЕ ТЯЖЕЛЫХ МЕТАЛЛОВ В ЖИРНЫХ МАСЛАХ И МАСЛЯНЫХ ЭКСТРАКТАХ
Authors:   I.M. Sechenov First Moscow State Medical University (Sechenov University), Galenko M.S.
Published: June 2021

Due to the tendency to an increase in industrial emissions into the environment and pollution of flora and fauna with various ecotoxicants, we studied the samples of vegetable oils for the content of heavy metals (Pb, Cd, Cu, Fe) by the method of atomic absorption spectroscopy (AAS). We established that the content of the determined elements was in the range from 0.037–1.474 mg/kg, we also found that in 20 % of the samples the lead content was below the method’s detection limit. Based on the obtained data, we calculated the possible intake of heavy metals into the human body with these oils and we evaluated the safety of their use.
INFLUENCE OF WEATHER CONDITIONS ON BIOCHEMICAL TRAITS OF HIGH OLEIC WINTER RAPESEED BRED AT VNIIMK
Authors:   V.S. Pustovoit All-Russian Research Institute of Oil Crops, Golova А.А. , Gorlova L.А. ,   V.S. Pustovoit All-Russian Research Institute of Oil Crops (VNIIMK)
Published: June 2021

Middle content of oleic acid in high oleic lines of winter rapeseed in hot 2019 was maximal and equal to 81.2 %, and minimal one – in a cool 2017 – 75.3 %. Studying of influence of day and night air temperatures in a period of seed formation (19.0–32.4/10.6–24.0 °С) on oil and glucosinolate contents in seeds of high oleic winter rapeseed did not demonstrated any significant dependences between these traits. There were not observed any important relations between amount of precipitations in a period of seed formation and oil content, fatty-acid composition of oil and glucosinolatec content in high oleic winter rapeseed.
THE CERTIFICATION OF SUNFLOWER LINES FROM THE COLLECTION OF THE DON EXPERIMENTAL STATION OF V.S. PUSTOVOIT ALL-RUSSIAN RESEARCH INSTITUTE OF OIL CROPS BY USING DNA MARKERS
Authors:   V.S. Pustovoit All-Russian Research Institute of Oil Crops, Golovatskaya A.V. , Guchetl S.Z. ,   V.S. Pustovoit All-Russian Research Institute of Oil Crops (VNIIMK)
Published: June 2021

The aim of this research was to develop molecular genetic passports of sunflower lines from the collection of the Don experimental station of V.S. Pustovoit All-Russian Research Institute of Oil Crops based on polymorphic fractions of microsatellite DNA. We used 17 lines as a research material. We used 12 pairs of primers for genotyping. We found that the ORS 559 locus was monomorphic for these samples. The rest of the loci had from 2 to 4 alleles. The average number of alleles per locus was 2.75, PIC – 0.49, the effective number of alleles – 2.16. The analysis of the DNA profiles of the lines showed the individuality of the allelic composition of each of them. The analysis of the genetic relations between the lines showed that the studied lines were divided into two groups, with a genetic distance between them of 5.9.
THE STUDY OF FIBER FLAX VARIETIES BRED IN THE TOMSK REGION IN THE SUBTAIGA ZONE OF THE OMSK REGION
Authors:   Omsk Agrarian Research Center, Gorbova M.A. , Mansapova A.I. ,   Omsk Agrarian Research Center
Published: June 2021

We studied the fiber flax varieties bred in the Tomsk region in 2017–2019 in the subtaiga zone of the Omsk region on the experimental field of the Northern Agriculture Department of the Omsk Agricultural Scientific Center. We provide the material for 7 varieties. The soil of the experimental plot is gray wooded podzolic, medium, loamy with a humus content of 3–4 %. The predecessor is spring wheat after fallow. The research results showed that the weather conditions significantly affected the growth, development, and formation of the yield. In 2017, cold and wet weather generally affected the yield and quality of fiber flax in comparison to 2018-2019. As a result of the research, we established that for 3 years the best varieties were TOST 5 and Tomich. The variety TOST 5 gave a straw yield of 4.70 t/ha with number 1.9, an estimated fiber yield of 1.31 t/ha and a seed yield of 0.80 t/ha with the growth season of 61 days. The variety Tomich was characterized by the high quality of straw with number 2.1 with a short growth season (48 days), it had a straw yield of 4.0t/ha, a fiber yield of 1.18 t/ha and a seed yield of 0.70 t/ha. Therefore, the combination of varieties of different ripening duration will optimize the harvesting timing, raise the flax straw, and get a high yield of quality products.
STUDYING OF COMBINING ABILITY OF SUNFLOWER (HELIANTHUS ANNUUS L.) BY A HEAD SQUARE AND SEEDS YIELD IN TESTER CROSSES
Authors:   RosNIISK ", Guseva S.А. ,   Possorgo", Babushkin D.D. ,   RosNIISK "Possorgo"
Published: June 2021

We analyzed a calculation of combining ability (CA) of 21 sunflower genotypes of Russian and foreign breeding by seed yield and head square, determined in a scheme of top-cross. Also there is considered a relation of mean squires of variability of common and specific combining abilities with a purpose to determine prevailing effects of gens. We revealed the sunflower variety samples with high meanings of effects of common combining ability and dispersion of specific combining ability as well as hybrid combinations F1 with high effects of specific combining ability.
THE EVALUATION OF PARAMETERS, ECOLOGICAL PLASTICITY AND STABILITY OF NEW SUNFLOWER HYBRIDS OF THE BREEDING OF V.S. PUSTOVOIT ALLRUSSIAN RESEARCH INSTITUTE OF OIL CROPS
Authors:   V.S. Pustovoit All-Russian Research Institute of Oil Crops, Luchinsky V.S.
Published: June 2021

We carried out the statistical evaluation of adaptability to climatic environmental factors for 5 years for hybrids Fakel, Kubansky 930, Typhoon, Faktor. In addition to economic characters, we studied ecological plasticity and stability by the method of S.A. Eberhart and W.A. Rassell edited by V.A. Zykina et al. According to the results of the study, 2019–2020 proved to be the least favorable for growing sunflower. The most favorable year by the index of environmental conditions was 2017 (Ij= 0,39).
Atenção à saúde das pessoas com hanseníase: atuação do enfermeiro em unidades básicas de saúde
Authors: Barbosa Karla Pires Moura , Da Silva Tahisa Ferreira , Vasconcelos Eliane Maria Ribeiro de , Albuquerque Maria Ilk Nunes de , Francisco Marta Maria , Figueiredo Yuri Matheus Braga Ferreira
Published: June 2021

Objetivo: Analisar a prática de enfermeiros relacionada às ações de controle da hanseníase nas Unidades de Saúde da Família de um município de Pernambuco. Métodos: Trata-se de um estudo descritivo, com abordagem quantitativa, de corte transversal. A população foi composta por 33 enfermeiros e utilizou-se uma entrevista semiestruturada para a coleta de dados. Os dados foram processados no programa EPIINFO, exportado para o SPSS. O estudo foi aprovado por Comitê de Ética em Pesquisa. Resultados: Os enfermeiros conhecem e operacionalizam as ações de controle da hanseníase, no entanto, apresentam dificuldades na operacionalização de algumas das ações e em suas atribuições no atendimento às pessoas com a doença. Associações estatísticas foram realizadas para identificar os fatores que influenciam no conhecimento, na presença de dificuldades e operacionalização das ações de controle da hanseníase, demonstrando que o conhecimento acerca das ações intervém diretamente na sua realização. Conclusão: Assim, para que os indicadores epidemiológicos revelem taxas menores de detecção e de prevalência de hanseníase faz-se necessário a realização efetiva das ações de controle da hanseníase e a falta de operacionalização dessas ações é consequência da ausência de uma política de educação permanente para os profissionais de saúde.
ROLES OF ECOTOURISM IN HOUSEHOLD INCOME IMPROVEMENT AND NATURAL RESOURCES PROTECTION IN TAM GIANG LAGOON OF QUANG LOI COMMUNE, QUANG DIEN DISTRICT, THUA THIEN HUE PROVINCE
Authors: Uy Tran Cao , Nam Le Van , Ngoc Phuoc Duong , Hong Phuong Le Thi , Ha Hoang Dung , Viet Linh Le , Thuy Tien Tran Ngo Le
Published: June 2021

This study was conducted to reinforce the hypothesis that ecotourism in Quang Loi commune’s lagoon created differences in income and lagoon resource protection of different beneficiary groups. Data was collected through secondary sources, 3 key informant interviews and interviews of 62 households in three household groups: tourism service, fishing, and aquaculture households.  The results reveal that ecotourism services in Quang Loi commune started in 2010 and thrive since 2017, relying on the advantages of the local natural resources. Local community organized and provided tourism services such as: sightseeing on the lagoon, fishing experience, dining and accommodation, and some other services. By joining such services, labors in ecotourism service households earned 39.07 million VND/ year, which significant contributed to improve household’s income. Ecotourism service households, therefore, had higher income than that of fishing group and aquaculture group (85.15 compared to 72.29 and 60 million VND, respectively; p value < 0.05). The lagoon environmental protection activities such as: lagoon night patrol, waste collection, propaganda and advocating for lagoon environmental protection, etc. were paid more attention by the local community since the development of ecotourism. Similarly, there was a significant higher participation time of tourism service households in the above activities in comparison with the rest groups (p value < 0.05). The lagoon environment and resources was assessed to be improved by local residents. This result implicates that ecotourism development is a suitable strategy to improve the local people's livelihood and Tam Giang lagoon resources protection currently.
ĐÁNH GIÁ HIỆU QUẢ SỬ DỤNG ĐẤT SẢN XUẤT NÔNG NGHIỆP TẠI HUYỆN TRIỆU PHONG, TỈNH QUẢNG TRỊ
Authors: Đức Nguyễn Văn , Tú Trần Thị Hải , Thông Châu Võ Trung
Published: June 2021

Nghiên cứu này được thực hiện tại Huyện Triệu Phong, tỉnh Quảng Trị nhằm đánh giá hiệu quả sử dụng đất sản xuất nông nghiệp để từ đó đề xuất các giải pháp sử dụng đất sản xuất nông nghiệp bền vững. Nghiên cứu đã lựa chọn 3 xã đại diện cho 3 tiểu vùng sinh thái của huyện Triệu Phong để điều tra phỏng vấn 106 hộ về tình hình sản xuất nông nghiệp và hiệu quả sử dụng đất sản xuất nông nghiệp: xã Triệu Ái đại diện cho vùng trung du (Tiểu vùng 1); xã Triệu Đại đại diện cho vùng đồng bằng (Tiểu vùng 2) và xã Triệu An đại diện cho vùng ven biển (Tiểu vùng 3). Kết quả nghiên cứu cho thấy giá trị sản xuất (GTSX) bình quân của đất sản xuất nông nghiệp là 39,722 triệu đồng/ha; giá trị gia tăng (GTGT) là 25,649 triệu đồng/ha, GTSX/LĐ (lao động) là 0,270 triệu đồng và GTGT/lao động là 0,177 triệu đồng. Loại hình sử dụng đất chuyên lúa ở tiểu vùng 2 (vùng đồng bằng) có GTSX và GTGT lớn nhất, lần lượt là 81,863 triệu đồng/ha và 53,635 triệu đồng/ha. Bình quân GTGT/lao động ở Tiểu vùng 2 là 0,341 triệu đồng, gấp 1,3 lần tiểu vùng 1, gấp 2,9 lần tiểu vùng 3.
ẢNH HƯỞNG CỦA MÔI TRƯỜNG DINH DƯỠNG VÀ ĐỘ MẶN ĐẾN SINH TRƯỞNG CỦA VI TẢO Nannochloropsis oculata
Authors: Thủy Nguyễn Thị Thanh , Bình Mạc Như , Ngọc Trần Nguyên
Published: June 2021

Nghiên cứu nhằm xác định ảnh hưởng của môi trường dinh dưỡng và độ mặn đến sinh trưởng của vi tảo Nannochloropsis oculata. Kết quả nghiên cứu cho thấy trong 3 môi trường dinh dưỡng F/2, Walne, TT3 thì tảo Nannochloropsis oculata nuôi ở môi trường F/2 đạt mật độ cực đại cao nhất và sớm nhất ở ngày nuôi thứ 10, có pha cân bằng ổn định. Tảo nuôi ở môi trường Walne đạt mật độ cực đại chậm hơn 2 ngày, môi trường TT3 tảo đạt mật độ cực đại chậm hơn 3 ngày so với môi trường F/2, mật độ cực đại lần lượt là 316,55 ± 1,19 x104 tế bào/mL; 248,79 ± 1,19 x104 tế bào/mL; 223,22 ± 1,48 x104 tế bào/mL. Thí nghiệm nuôi tảo ở 4 mức độ mặn 20‰, 25‰, 30‰, 35‰ cho thấy tảo Nannochloropsis oculata ở độ mặn 30‰ đạt mật độ cực đại cao nhất và sớm nhất ở ngày nuôi thứ 9 (294,29 ± 1,01 x104 tế bào/mL), có pha cân bằng ổn định. Trong khi đó tảo ở độ mặn 35‰ đạt mật độ cực đại chậm hơn 1 ngày (275,14 ± 0,32 x104 tế bào/mL), độ mặn 20‰ và 25‰ tảo đạt mật độ cực đại lần lượt là 197,57 ± 0,64 x104 tế bào/mL, 214,35 ± 0,55 x104 tế bào/mL, chậm hơn 4 ngày so với mật độ tảo cực đại ở độ mặn 30‰.
MỘT SỐ BẤT CẬP VỀ HỢP ĐỒNG DỊCH VỤ ĐẤU GIÁ TÀI SẢN THI HÀNH ÁN DÂN SỰ
Authors: Thị Thúy Hằng Nguyễn , Thành Hồ Minh
Published: June 2021

Hợp đồng dịch vụ đấu giá tài sản thi hành án dân sự là một dạng hợp đồng mà người ký hợp đồng để chuyển giao các quyền chiếm hữu, sử dụng, định đoạt tài sản không phải là chủ sở hữu tài sản mà là chấp hành viên thuộc cơ quan thi hành án. Việc ký kết hợp đồng này ảnh hưởng đến quyền lợi của người được thi hành án và người phải thi hành án. Vì vậy, bài viết nghiên cứu một số bất cập về loại hợp đồng này như: bất cập về chủ thể ký kết hợp đồng, về nội dung hợp đồng và thời hạn thực hiện hợp đồng. Trên cơ sở đó, bài viết đề xuất một số kiến nghị hoàn thiện pháp luật về hợp đồng dịch vụ đấu giá tài sản thi hành án dân sự.
NGHIÊN CỨU KHOA HỌC CỦA SINH VIÊN TRONG CÁC CƠ SỞ GIÁO DỤC ĐẠI HỌC, QUA THỰC TIỄN TẠI TRƯỜNG ĐẠI HỌC LUẬT, ĐẠI HỌC HUẾ
Authors: Thị Phượng Hồ , Bá Tường Nguyễn
Published: June 2021

Trên cơ sở thông tin, số liệu đã thu thập được, tác giả tiến hành phân tích, đánh giá tình hình nghiên cứu khoa học của sinh viên tại Trường Đại học Luật, Đại học Huế. Bài viết tập trung đánh giá vai trò của hoạt động nghiên cứu khoa học đối với quá trình học tập của sinh viên, tìm ra nguyên nhân của những tồn tại. Từ đó, tác giả tập trung đề xuất một số giải pháp nhằm nâng cao hiệu quả hoạt động nghiên cứu khoa học của sinh viên tại Trường Đại học Luật, Đại học Huế.
Symbiotic relationship of am fungi with root of phyllanthus amarus in western ghats, of tamil nadu
Authors: A Venkatachalapathi , N Nagarajan
Published: June 2021

The mutually association between a fungus and root of a higher plants are called as Mycorrhiza, when the fungal hyphae live on root surface is called Ectomycorrhiza and when penetrate the root and grows inside the root tissue is called Endomycorrhiza. The different type of Arbuscular Mycorrhizal fungi (AMF) were evaluated for the symbiotic relationship with Phyllanthus amarus in Western Ghats. Glomus fasciculatum, Gigospora margarita, etc., are isolated in the forest rhizosphere soil. In the presence of AMF in root tissues generally had greater plant height, biomass, stem diameter, number of leaves and phosphorus content where rich in amount compared to other plant species.
The Excavation of Khok Phanom Di. A Prehistoric Site in Central Thailand : Volume III: The Material Culture (Part 1)
Authors: Higham C.F.W. , Bannanurag R.
Published: June 2021

Khok Phanom Di is a prehistoric site located in Central Thailand. Excavations there were undertaken in 1985, and this the third of a series of volumes reporting the results of these investigations. This volume considers the non-ceramic artefacts, including fishing implements, weaving equipment and stone tools.
Quranic Parenting: The Concept of Parenting in Islamic Perspective
Authors: Rubini Rubini , Setyawan Cahya Edi
Published: June 2021

The first and main childrenâ€™s education is family education. In order to form children to be pious and faithful toward the One Almighty God, have noble characters that involve ethics, moral, and manners. This article aims to explain the foundation, principles and how it is performed and what methods utilized in the Quranic parenting. Those objectives are explained and framed in Islamic values. This article utilizes library research method. The data sources are taken from primary and secondary data. The primary data is Quranic Parenting: Success Tips to Educate Students based on the Al-Qurâ€™an (Quranic Parenting: Tips for Success in Educating Children according to the Qur'an). Based on the result, the foundations of childrenâ€™s parenting are Al Quran, Hadiths, and Ijmaâ€™ Ulama, the Act of National Education System (Sisdiknas) No.20 Year 2003 Article 7 Paragraph 2, and Act of the Republic of Indonesia No.23, Year 2002 article 26 paragraph 1. While the principles of parenting are to maintain the childrenâ€™s nature (almuhafazoh), develop their potentials (at-tanmiyah), provide a clear guidance (at-taujid), gradually (at-tararruj). The parenting methods are Exemplary, Habituation, Attention, Rewards, and Punishments.
Islamic Education Based on Higher Order Thinking Skills (HOTS) in The Perspective of Neuroscience
Authors: Prihantoro Wahyu Kholis , Suyadi Suyadi
Published: June 2021

Education is not only the process of transferring knowledge. Then a student is asked to memorize, then is assessed based on the ability to memorize that knowledge. At the same time, a student at this time needs to have high-level thinking skills or HOTS. The launching and recommendation of the application of HOTS in the learning process is one of the strategic efforts to improve learning capacity, especially the learning of religious education in the HOTS of critical thinking. Logically, the problem of higk level thinking, which is the person's cognitive skills, is the upper front part, which is called the prefrontal cortex. The brain part of this part is known as the center of ecretutive control, or the student is a high-level thinking. Also, place of problem solving, regulation, create character and personality. Sciences strategic activities are carried out in Islamic Education so that they can get high-level ability to be enhanced with the HOTS indicator: (1) analysis level, (2) evaluation level, (3) level of integration. This research enriched scientific knowledge in other studies.
Reason and Revelation According to Harun Nasution and Quraish Shihab and its Relevance to Islam Education
Authors: Furqan Furqan , Hikmawan Arham
Published: June 2021

The theme of reason and revelation becomes a hot topic because it is one of the Islamic theology studies that cannot be separated from a polemic. The use of reason is more dominant than a divine revelation will tend to produce a liberal. However, reasoning that ignores a reason will tend to be textual and traditional. The research aims to find out the comparison between the thought of Harun Nasution and Muhammad Quraish Shihab about reason and revelation and its relevance with Islam Education. While this research is theoretically used to enrich the scientific treasures of reason and revelation. The result presents the difference and similarity between both figuresâ€™ thoughts on reason and revelation. Harun Nasution and Muhammad Quraish Shihab believe in an absolute truth that only comes from a divine revelation. Humansâ€™ reason has extraordinary potential if it is used appropriately. However, it also has a tendency to drive to an astray way. Besides, both figures emphasize on the moral function of the divine revelation towards human life. The divine revelation brings goodn values for mankind through their lives. The difference is in the capacity in providing an area for reason and revelation. Harun Nasution tends to give a bigger portion to use the reason than the divine revelation in formulating his opinions. Meanwhile, Quraish Shihab is known as a moderate figure because their opinion prioritizes the harmony between reason and revelation.
Segmental Artery Injury During Anterior Column Realignment: A Case Report and Review of the Literature
Authors: Pressman Elliot , Screven Ryan , Osburn Brooks , Hartnett Sara , Alikhani Puya
Published: June 2021

Background: Anterior column realignment (ACR) is a minimally invasive technique used to restore lumbar lordosis and improve sagittal balance. The most feared complication from ACR includes injury to the great vessels. Segmental artery injuries are also a possible complication, although sparsely reported. We report such a case.
Case Description: During anterior longitudinal ligament release at L3–4, the L3 segmental artery was injured. Intraoperative angiogram and coiling were performed. Our patient remained hemodynamically stable, with the exception of during the postoperative period when his hemoglobin level fell five points.
Discussion: This patient was at risk for this complication due to the tortuosity of his vessels and his osteophytes. This injury can be treated concurrently with endovascular embolization if equipment and personnel are readily available. Ultimately, segmental artery injury does not appear to be as morbid as great vessel injury, if addressed emergently.
Effects of Social Media on Students at University Level During Covid-19
Authors: Bibi Shabnam , Nawaz Muhammad Hameed
Published: June 2021

This study has shown to investigate the problem “effects of social media on students at university level during COVID-19”. Social media has influenced our life. The main objective of this study was to find out the influence of social networking sites on students during COVID-19 pandemic. The study was beneficial for youngster to use social media positively, informative and educational purpose and aware the youngster about the negative side of social media while they have much opportunity to stay at home and thy opportunity to get education by using social media. Study was consisted of four universities of Lahore i.e., public and two private and two department of each university. A sample of 10 female and 10 male students of each department were selected randomly.  This research was descriptive in nature and information was collected by using the designed with an online technique. The questionnaire was prepared for measuring the different option of males and female about positive use of social media. The questionnaire covered both positive and negative effects of social media in pandemic period. The questionnaire based on five-pointlikert scale. Data was analyzed through independent t-test at SPSS. The result demonstrated that the social media has both negative and positive effects on students during COVID-19 pandemic.Effects of social media on students at university level during COVID-19. Students mostly use social media for connected with friends and family and they exchanged helpful data and online classes via social media networking sites. Social media enhances social skill and developed technical skill while using it during class assignment and group discussions. Social media cause health problems and affect our cultures badly because students spend more time on social media during pandemic. Youngster spends their precious time on playing games and talking on social communication sites.
Methodology of first-year students’ foreign language written discourse competency development
Authors: Hoshtanar Iryna , Kostrubina Olga , Lebedieva Aelita , Izmailov Oksana
Published: June 2021

The article focuses on the issues of methodology of first-year students’ foreign language written discourse competency development. The aim of this paper is to present the results of experimental work on the development of first-year students’ foreign language written discourse competency and to specify the achievements in its implementation into the educational process at the Faculty of Foreign Philology of the Kherson State University. The subject of our research project is the methodology of the development of students’ written discourse competency as the basis for their written communication in a foreign language. The achievement of this goal was carried out in the course of solving a number of tasks. Thus, the notion of written discourse competency in a foreign language is considered and its structure and components are clarified. The methodology of university students’ foreign language written discourse competency development is presented in the form of a model which includes 5 components: target, concept, content, procedure and outcome. The results obtained in the course of the experimental teaching are given.
2/B orman vasfını yitirmiş araziden tarım arazisine dönüşen taşınmazların toplu değerlemesi
Authors: ÇINAR Sultan , BÜNYAN ÜNEL Fatma
Published: June 2021

Taşınmaz değerleme; vergilendirme, sigortalama, kamulaştırma gibi birçok uygulamanın altlığını oluşturmakta ve gün geçtikçe önemi artmaktadır. Toplu değerleme sistemleri kurularak modern yöntemlerle otomatik değer kestirimleri yapılabilmektedir. Değer kestirimlerinin hassas bir şekilde en az hata ile yapılabilmesi, gerçekleşen alım-satım değeriyle mümkündür. Tarım arazilerinin toplu değerlemesi için kriterler çeşitlilik göstermekte olup taşınmaz değerini arazinin büyüklüğü, yapısı, verimi ve konumu etkilemektedir. Bu çalışmanın amacı, Mersin ili Erdemli ilçesi Sarıkaya Mahallesi’ndeki 2/B arazilerinin resmi değerleri yardımıyla istatistiki yöntemlerden Çoklu Lineer Regresyon (ÇLR) analizi ve modern değerleme yöntemlerinden Yapay Sinir Ağları (YSA) uygulanarak değer kestirimi yapmaktır. Orman vasfını yitirmiş 2/B arazilerinin tarım arazisine dönüşerek satışının gerçekleşmesi için tespit edilen toplam 414 parsele ait resmi değerler ile model oluşturulmuştur. Performans analizinde R2, Ortalama Mutlak Hata (OMH), Ortalama Mutlak Yüzde Hata (OMYH) ve Karesel Ortalama Hata (KOH) ele alınmıştır. ÇLR analizi için sırayla 0,72; 0,25; 0,20; 0,07 ve YSA için 0,88; 0,09; 0,07; 0,02 şeklinde bulunmuştur. Her iki modelin performansları incelendiğinde YSA modelinin resmi değere daha yakın olduğu tespit edilmiştir. Parsele ait konuma dayalı olarak resmi değerler, ÇLR ve YSA modellerinden elde edilen tahmin değerleri jeoistatistik analiz yapılarak değer haritaları üretilmiştir. Değer haritalarının görsel değerlendirmeleri sonucunda da resmi değerlere en yakın YSA tahmin değeri olmuştur.
Introduction of Conditional Probability with the Relative Frequency Approach: Focus on the Use of the Frequency Tree Diagram and Simulation
Authors:   The Korea Society Of Educational Studies In Mathematics, Choi Inyong
Published: June 2021

The purpose of this study is to propose and discuss the pedagogical idea of introducing conditional probability with the relative frequency approach. This study developed a learning activity and simulation using the frequency tree diagram and implemented them. The first-year high school students (n=14) were able to construct the concept of conditional probability through a frequency perspective of sequentially obtaining the conditional relative frequency, the limit of the relative frequency, and the theoretical probability. The implications for teaching and curriculum were presented.
Reliability and Validity of Mathematics Anxiety Scale for High School Students
Authors:   The Korea Society Of Educational Studies In Mathematics, Ok Bo-myoung , Lee Changyeon , Koh Sang S. Choi
Published: June 2021

This study evaluates the factorial structure of the Mathematics Anxiety Scale for Students (MASS) using data from 1,272 high school students. To this end, we used the mathematical anxiety rating scale for middle and high school students developed by Ko and Yi (2011). An exploratory factor analysis of the response data from the first sample (636 students) eliminated 31 of the 65 items of the original MASS, generating the MASS-Short Version (MASS-SV), a mathematical anxiety scale for high school students with four factors-mathematical problem solving, mathematical learning methods, mathematics test, and mathematics class. A confirmatory factor analysis of the MASS-SV using the responses of the second sample (636 students) revealed that the model fit indices were acceptable and did not differ significantly from those of the original MASS. The MASS-SV derived from this study is a valid and reliable mathematical anxiety measurement tool for high school students; it also helps the students save time and provide quality responses. Future research on the progress of math anxiety in students should identify trends in math anxiety or the relationship between variables such as achievement, attitude toward mathematics, and career path in relation to math anxiety.
The doubtful effectiveness of the COVID-19 vaccine
Authors: Diogo José Horst  , Charles Adriano Duvoisin
Published: June 2021

A COVID-19 pandemic has erupted around the world. World Health Organization (WHO) and allies are racing to create and deploy safe and effective vaccines as they work together to monitor the pandemic, advise on crucial measures, and distribute essential medical resources to those in need. Vaccines save millions of lives, by training the body's natural defenses, the immune system, to identify and combat the viruses and bacteria they are intended to combat. This review article presents the status of COVID-19 vaccines evaluated by the WHO Emergency Use Listing (EUL) assessment process and those liberated as well. Data was obtained from the WHO, Gavi – The Vaccine Alliance from Bill & Melinda Gates Foundation, Oxford Vaccine Group, Serum Institute of India, AstraZeneca, European Medicines Agency EMA among others. As can be seen, there is still no totally effective vaccine, and many clinical trials are still needed, and even immunized citizens are still at risk of recontagion. Virus mutation is a recurring problem and different vaccine production methodologies are still being studied.
Huntington’s disease: Pathophysiology and therapeutic intervention
Authors: Payal B Kshirsagar  , Hemant S Kanhere  , Pallavi C Bansinge  , Sawan K Rathod  , Vrushali S Khandare  , Ranjita K Das
Published: June 2021

Huntington's disease [HD] is a progressive neurodegenerative condition characterized by movement disorder, cognitive impairment, and behavioral symptoms. It is inherited as an autosomal-dominant trait and normally manifests in mid-adulthood. HD is common in India and parts of Central Asia, with a prevalence rate of 4–8 per 100 000 in most European populations. Juvenile onset affects around 5–10% of cases, with signs appearing before the age of 20. Patients may show more parkinsonian symptoms such as bradykinesia, dystonia, tremors and a cognitive deficit in place of chorea. There is no therapy that can completely stop the condition from progressing. There are medications that can help to regulate chorea, dystonia, mental, and psychiatric disturbances. The study covers the disease's pathophysiology, as well as plants and phytochemicals that have been shown to be beneficial.
The medical importance of Iris pallida – A review
Authors: Ali Esmail Al-Snafi
Published: June 2021

Iris pallid (Family: Iridaceae) was used traditionally asantispasmodic, aperient, aromatic, attenuant, carminative, detoxicant, diuretic, emetic, emmenagogue, expectorant, fixative, laxative, pectoral, purgative and sedative. It contained oils and aromatic constituents, fat, resin, a large quantity of starch, mucilage, phenolics, flavonoids and glucosides. Iris pallida possessed many pharmacological effects included anti-inflammatory, antioxidant, anti-aging, anticancer, antiparasitic and antimicrobial activities. The current review will highlight the chemical constituents and pharmacological effects of Iris pallida.
Ameliorative Effects of Oral Glucosamine on Insulin Resistance and Pancreatic Tissue Damage in Experimental Wistar rats on a High-fat Diet
Authors: Barrientos Cornelio , Pérez Angélica , Vázquez Jorge
Published: June 2021

Hyperlipidemia due to a high-fat diet (HFD) is a risk factor for inducing insulin resistance (IR) and adverse effects on pancreatic β-cells in obesity and type 2 diabetes mellitus. This relationship may be due to activation of the hexosaminebiosynthesis pathway. Administration
of exogenous glucosamine (GlcN) can increase the end product of this pathway (uridine-5′-diphosphate-N-acetyl-glucosamine), which can mediate IR and protein glycosylation. The objective of this study was to evaluate the effects of oral GlcN and HFD on IR and pancreatic histologic damage
in a 22 wk study of 4 groups of male Wistar rats: control group with normal chow diet, HFD group (24%. g/g lard), GlcN group (500 mg/kg–1 per day of glucosamine hydrochloride in drinking water) and HFD plus oral GlcN. Metabolic variables related to IR that were measured
included triglycerides (TG), free fatty acids (FFAs) and malondialdehyde (MDA). Histopathologic evaluation of the pancreas was also performed. The results showed IR in the HFD group, which had increased pancreatic nuclear pyknosis and vacuolization, with fatty infiltration and structural alteration
of the islets of Langerhans. TG, FFAs and MDA were higher in serum and pancreatic tissue as compared with the control group. The GlcN group did not develop IR and had only mild nuclear pyknosis with no significant change in the pancreatic content of TG, FFAs and MDA. However, the combined
administration of GlcN and HFD attenuated IR and improved TG, FFAs and MDA levels in serum and pancreatic tissue and the pancreatic histopathologic changes, with no significant differences as compared with the control group. These findings suggest that the oral GlcN at a dose of 500 mg/kg–1
is protective against IR and the pancreatic histologic damage caused by HFD.
Publicar en DEDiCA
Authors: Sadio-Ramos Fernando José , Ortiz-Molina María Angustias
Published: June 2021

En esta sección se muestran, a los autores, las normas de presentación de los textos, las normas de citación (APA), las líneas de trabajo de la revista, los compromisos éticos de las investigaciones, la obligatoriedad de la originalidad de los trabajos…
Nilai Budaya dalam Serat Ajisaka
Authors: Kartikasari Erlin
Published: June 2021

One of Javanese literature attached to Javanese people is the story of Ajisaka, which was published among the people in verbal and writing. Ajisaka is a Javanese figure whom the Javanese people consider as the originator of Javanese script. One of the recorded of the story of Ajisaka was the Serat Ajisaka written by J. Kats using Javanese script. Serat Ajisaka is one of the stories from a collection of stories in the book entitled Serat Jawi Tanpa Sekar written by J. Kats, a Dutch writer in 1942. This research aims to describe the cultural values ​​in Serat Ajisaka by J. Kats in 1942 using philology studies. This research uses the descriptive method conducted in three stages, the first stage transcribing data, the second stage transliterating Latin script containing Javanese into Indonesian, then analyzing the cultural value in Serat Ajisaka. Serat Ajisaka has several concepts of cultural values, namely: 1) educational values, 2) religious values, 3) leadership values, 4) heroism values, 5) courage values, 6) simplicity values, 7) mutual-cooperation values, 8) moral values, and 9) the value of sacrifice for others.
Legenda Buka Luwur Asal-Usul Dukuh Pantaran sebagai Media Pendidikan Karakter
Authors: Cahyati Jeni Nur , Arifin Zainal
Published: June 2021

This study aims to (1) describe the description of the legend of Buka Luwur the origins of Dukuh Pantaran, and (2) describe the potential of the legend of Buka Luwur the origins of Dukuh Pantaran as a medium for character education. This research is a qualitative descriptive study. The data in this study are words, phrases, clauses, and sentences that contain the value of character education in the legend of Buka Luwur the Origin of Dukuh Pantaran. Data sources consist of primary and secondary. Data collection techniques using observation, interview, recording, recording, and document analysis techniques. The data validation used source triangulation. Data analysis techniques with interactive models. The results of this research are (1) the legend of Buka Luwur The origin of the Pantaran Hamlet is a type of folklore legend because it tells the origin of the name Dukuh Pantaran; and (2) the legend of Buka Luwur the origins of Dukuh Pantaran contain fourteen values ​​of character education, namely: religious, honest, tolerance, discipline, hard work, creative, independent, curiosity, respect for achievement, friendly/communicative, love, peaceful, environmental care, social care, and responsibility. With these fourteen values, the legend of Buka Luwur the origins of Dukuh Pantaran has the potential as a character education medium that needs to be instilled in students.
Pengembangan Bahan Ajar Menulis Cerita Pendek dengan Pendekatan Kontekstual Berbasis Kearifan Lokal pada Siswa Kelas XI SMK
Authors: Saputro Arif Mazhuri , Arifin M. Bahri , Hefni Asnan
Published: June 2021

This research aims to produce teaching materials, describing the feasibility and effectiveness of teaching materials writing short stories with a contextual approach based on local wisdom in XI grade students of SMK Negeri 1 Kota Bangun. This research is a model of research and development. The data sources in this study are obtained from the development, implementation of learning, quality of products of development results, material development process, and material preparation. Data analysis techniques include measuring student writing test results, student response measurement, validation and planning assessment. This research resulted in teaching materials to write short stories with a contextual approach based on local wisdom for vocational class XI students. The feasibility of teaching materials is obtained from validation results by language experts (93.75%). The media experts (88%) category is very feasible with ready-to-use product decisions in the field without revision. The effectiveness of teaching materials can be seen from the results of the observer assessment, which is 3.65 classified very well. Furthermore, the teacher response calculation was 96.73%, and the student response was obtained at 88.94%, classified as very feasible with ready-to-use product decisions in the field without revision. The short story writing test results yielded an average score of 85.9%, included in the excellent category. Test results write short stories on background aspects (100%), themes (97.5%) and language usage (90.83%) fall into the category very well. Thus, teaching books writing short stories with a contextual approach based on local wisdom can be used in the learning process for vocational students in XI grade.