bluuebunny/crossref_metadata_2025 huggingface dataset:
Predictores de la satisfacción con los estudios en universitarios peruanos: estudio realizado durante la Pandemia COVID-19
Authors: Huayta Meza Madeleine Victoria , Turpo Chaparro Josué Edison , Mamani-Benito Oscar , Apaza Tarqui Edison Effer
Published: September 2022

Introducción. La Pandemia COVID-19 ha generado repercusiones en la educación superior. Por ello, se tuvo como objetivo determinar si el uso de medios académicos virtuales, repercusiones académicas y adaptabilidad predicen la satisfacción con los estudios en universitarios.
 
Método.  Estudio explicativo y transversal, donde participaron voluntariamente 725 universitarios de ambos sexos, de entre 16 a 44 años de edad, residentes en la costa, sierra y selva peruana, adscritos a ciencias empresariales, humanidades, salud, ingenierias y teologia. Los datos se recolectaron a través de una escala de satisfacción con los estudios, escala de uso de medios académicos virtuales, escala de repercusiones académicas y otra de adaptabilidad a la vida universitaria. Para el análisis estadístico se estimó un modelo de ecuaciones estructurales (SEM) aplicando el análisis factorial confirmatorio (AFC).
 
Resultados.  Según el AFC, las repercusiones academicas (β = .22; p < .01) y la adaptabilidad (β = .59; p < .01) tienen un efecto significativo sobre la satisfacción con los estudios; en cambio, el uso de medios academicos virtuales tiene un efecto positivo (β = 0.07; p>0.05) pero pequeño y no significativo. El modelo global ajustó con indicadores de bondad de ajuste aceptables (χ2= 908.45, con 241 gl, y un p valor < .001, CFI = .955; IFI= .955; NFI=.940; GFI= .906; TLI=.948; RMSEA=.062).
 
Discusión y conclusiones.  La satisfacción con los estudios en tiempos de educación virtual, está condicionada por la calidad del uso de medios académicos virtuales, percepción de posibles repercusiones académicas y el nivel de adaptación alcanzado para las clases virtuales.
Research on Design Method of Combined Lunar Landing Airbag Without Rebound
Authors: Zhou Xuan , Zhou Shiming , Li Daokui , Cui Da , Chen Chen
Published: September 2022

Rebound is the main problem in the landing process of the combined airbag. To solve the problem, the design method of the combined lunar landing airbag without rebound was proposed in this paper. First, a new combined airbag structure was designed to avoid dust generated by venting during landing, and the analytical dynamics model of the combined lunar airbag was established on the basis of the deformation assumptions and gas exchange relationship of the main and secondary airbags, which is validated by simulation and experiment. Then, based on the analytical model, the combined airbag was optimized under the constraint of no rebound to realize the design of the airbag without rebound. Finally, the multiobjective optimization design of the combined airbag was carried out using this method. The optimized airbag with no bouncing back and no hard landing was also obtained, of which the maximum impact acceleration was smaller than the nonoptimized one. The analytical results of the optimized airbag are in good agreement with the simulation results, indicating that the proposed no-rebound design method is effective and feasible.
PENGARUH PEMBERIAN KOMPOS AMPAS TAHU DAN PUPUK NPK TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN TERUNG UNGU (Solanum melongena L.)
Authors: Nuraida  , Arnis En Yulia
Published: September 2022

This research aimed to examine the effective interaction of tofu waste compost and NPK fertilizer to determine the best doses which give the growth and highest production of purple eggplant. The research was conducted at Experimental Farm, Faculty of Agriculture, Riau University, Pekanbaru. The research was conducted for 5 months, from February to June 2020. The research was experimentally arranged in a 3x3 factorial using a completely randomized design (CRD). The first factor was the tofu waste compost consisting of 3 levels (0, 10, and 20 tons.ha-1). The second factor was the NPK fertilizer (0, 100, and 150 kg.ha-1) which consists of nine treatments combination. The observed parameters were the height of the plant, the days of flowering, the days of harvesting, the fruit length, the fruit diameter, the number of fruits per plant, the fruit weight per fruit, the fruit weight per plant, and the fruit weight with the plot. The data in this research was analyzed using variance and followed by Duncan's multiple distance test at a 5% level. The results showed that tofu waste compost and NPK fertilizer increased the growth of eggplant such as the height of the plant, the days of flowering, the days of harvesting, the number of fruits per plant, the fruit length, the fruit weight per fruit, the fruit weight per plant and the fruit weight with plot and does not increase fruit diameter. The giving tofu waste compost at a dose of 20 tons.ha-1 and NPK fertilizer 150 kg.ha-1 gave the best eggplant growth and production until the plants were 90 DAP.
UJI APLIKASI POC KEONG MAS DAN PUPUK SP-36 TERHADAP PERTUMBUHAN SERTA P RODUKSI TANAMAN TOMAT CERI (Solanum lycopesicum var. cerasiforme)
Authors: Suratman  , T Rosmawaty
Published: September 2022

This study aimed to determine the effect of the main and main POC of golden snail and SP-36 fertilizer on the growth and production of cherry tomatoes (Solanum lycopersicum var. cerasiforme). This research was carried out in the experimental farm of the Faculty of Agriculture, Riau Islamic University, Jalan Kaharuddin Nasution No. 113, Air Cold Village, Bukit Raya District, Pekanbaru City. This research was carried out for 5 months starting from February to June 2021. This study used a completely randomized design (CRD) with 2 factorials, the first factor was POC Keong Mas (P) and the second factor was SP-36 fertilizer (S) each consisting of 4 levels of treatment. The parameters observed were: plant height, flowering age, number of bunches planted, harvest age, the weight of fruit planted, the weight of fruit per fruit, number of fruit planted, and number of leftover fruit. The research data were analyzed statistically and continued with the BNJ test at the 5% level. The results showed that the effect of the POC of golden snail and SP-36 fertilizer had a significant effect on all observation parameters. The best treatment was giving a combination of POC of golden snail 75 ml/L of water and SP-36 fertilizer of 7.5 g/plant (P3S3). The main effect of giving golden snail POC gave a significant effect on all observation parameters. The best treatment was giving the golden snail POC 75 ml/L water (P3). The main effect of SP-36 fertilizer had a significant effect on all observation parameters. The best treatment was the application of SP-36 7.5 g/plant (S3) fertilizer.
PERTUMBUHAN SANSEVIERIA PADA KOMPOSISI MEDIA TANAM MENGGUNAKAN TANAH LIMBAH PETI DI KABUPATEN KUANTAN SINGINGI
Authors: Zulfikar  , Tengku Nurhidayah  , Muhammad Ali
Published: September 2022

This study aims to examine the best composition of planting media using PETI (unlicensed gold mining) which is best for the growth of Sansevieria aubritiana 'Tiger' and Sansevieria trifasciata 'Laurentii'. This research was conducted at the greenhouse of the Faculty of the Agriculture University of Riau. The research was carried out experimentally by using a Completely Randomized Design (Factorial) consisting of two factors, the first was plant type (S) and then planting media (M), which consisted of 6 treatments and 3 replications. So that 18 research units were obtained. The treatments consisted of M1S1 (Coffin land + TKKS compost 1:1, type S. aubrytiana 'Tiger'), M2S1 (Coffin land + husk charcoal 1:1, type S. aubrytiana 'Tiger'), M3S1 (Coffin land + TKKS compost + husk charcoal 1:1:1, type S. 'Tiger'), M1S2 (Coffin land + TKKS compost 1:1, type S. trifasciata 'Laurentii'), M2S2         (Coffin land + husk charcoal 1:1, type S. trifasciata 'Laurentii') and M3S2 (Coffin land + TKKS compost + husk charcoal 1:1:1, type S. trifasciata 'Laurentii'). The data obtained were then further tested by Duncan's multiple range test at 5 %.  The results of the study concluded that the combination of planting media of Coffin land + husk charcoal 1:1 was to be able to increase height, the number of leaves, leaf length, root volume, and the number of tillers in S.  aubrytiana 'Tiger'. The use of a combination of planting media of Coffin land + TKKS compost 1:1 was able to increase height, the number of leaves, leaf length, and leaf width on S. trifasciata 'Laurentii'.
PEMANFAATAN LIMBAH BULU AYAM SEBAGAI KOMPOS DAN NPK GROWER UNTUK MENINGKATKAN PERTUMBUHAN DAN PRODUKSI TANAMAN KUBIS (Brassica oleracea L.)
Authors: Yuli Retno Winarsih  , Raisa Baharudin
Published: September 2022

The purpose of the study was to determine the interaction effect and the main effect of chicken feather waste compost and NPK Grower fertilizer on the growth and production of cabbage (Brassica oleracea var. capitata). This research was conducted at the Experimental Farm of the Faculty of Agriculture, Riau Islamic University. This research was conducted from March to July 2021. This study used a Factorial Completely Randomized Design with two factors. The first factor was the dose of chicken feather waste compost, consisting of 4 levels, namely 0, 150, 300, and 450 g/plant. The second factor is the dose of NPK Grower fertilizer, consisting of 4 levels, namely 0, 7.5, 15, and 22.5 g/plant. If the calculated F is greater than the F table, the further test is continued with the Honest Significant Difference (BNJ) at the 5% level. Parameters observed were plant height, number of leaves, age of shoot formation, age of harvest, plant fresh weight, crop weight, and crop circumference. The results showed that there was a significant interaction between the treatment of chicken feather waste compost and NPK Grower on observations of plant height, number of leaves, age of shoot formation, harvest age, crop weight, and crop circumference. The best treatment was chicken feather waste compost at a dose of 450 g/plant and NPK Grower 22.5 g/plant. The main effect of chicken feather waste compost was real on all observation parameters. The best treatment was chicken feather waste compost at a dose of 450 g/plant. The main effect of NPK Grower is real on all observation parameters. The best treatment for NPK Grower is at a dose of 15 g/plant.
Estimation of surface melt induced melt pond depths over Amery Ice Shelf, East Antarctica using Multispectral and ICESat-2 data
Authors: Geetha Priya M. , Deva Jefflin A.R. , Alvarinho J. Luis , Bahuguna I.M.
Published: September 2022

Surface melting is increasing over the Antarctica continent, with unknown impacts on glacier and ice sheet dynamics at the ice-bed interface. Surface meltwater drains to the bed of Antarctica ice sheets and outlet glaciers, causing accelerations in ice flow (up to 100% greater than the annual mean). Because melt occurrences are currently erratic (also Antarctica surface melt refreezes), effective subglacial drainage cannot be maintained, resulting in repeated short-lived ice flow disturbances and calving of ice shelves. Longterm exposure to strong surface melting promotes the formation of melt ponds and subsequently Supraglacial lakes and therefore there is possibility of hydrofracturing. The present study aims to estimate the volume of surface melt-induced melt ponds over the Amery Ice Shelf (AIS) using a physically-based radiative transfer model. The AIS, located on Antarctica's east coast, is one of the world's biggest glacier drainage basins. The ICESat-2 geolocated photon data were used to validate the depth estimates of melt ponds derived from Landsat-8 and Sentinel-2 multispectral datasets based on the model. The average depth estimated is around 1.9±0.6 m for the melt ponds adopted for the present study. The present study aims to quantify surface melt over the Antarctica continent (AIS region) in the context of India’s scientific credentials in polar science. We recommend monitoring extensive surface melt and subsurface refreezing which might result in more ponding above impermeable ice layers in the coming years.
Comparison of Seismic Response of Mono and Hybrid Structural System for Tall Windmill Tower considering Near-field and Far-field Earthquake
Authors: Shah Hemal J. , Desai Atul K.
Published: September 2022

The windmill towers are the tall structures which are used as supporting mechanism for mounting the nacelle and rotor of windmill. These tower structures are conventionally steel structures with monopole configuration. It may be possible that these towers are installed in area of high earthquake risk and they are subjected to natural disaster like earthquake during its life span. The conventional monopole towers are not useful for very tall windmill tower in seismically active regions owing to slender effect. To reduce damages in conventional monopole tower constructed in near filed seismic regions, the new hybrid structural system which is blending of monopole and lattice configuration is proposed in present research. The mass and stiffness of structure are important parameters to resist the seismic forces, therefore in present research, new structural configuration is proposed which gives more stiffness to structure. The 125 mt high conventional monopole windmill tower is modelled in the numerical simulation and appropriate model of hybrid tower is also modelled in FE software. Both monopole and hybrid towers are subjected to natural disaster like earthquake, considering different near field and far filed Seismic excitation. Detailed dynamic analysis of both towers was carried out and response of monopole and hybrid tower was compared for parameters like displacement in time domain, baes shear in time domain and response spectra of structure. From the results obtained using numerical investigation, it is concluded that the innovative hybrid structural system is more effective in tall windmill tower and can be used efficiently to resist the natural disasters like earthquake.
Analisis Hubungan Kebiasaan Merokok dengan Hipertensi di Kuok Kabupaten Kampar
Authors: Apriza Apriza , Nurman Muhammad
Published: September 2022

Hipertensi dikenal sebagai penyakit paling mengkhawatirkan dan beresiko tinggi terhadap kematian dan dikenal sebagai silent killer. Peningkatan jumlah keseluruhan kasus penyakit hipertensi sebagian besar diakibatkan oleh faktor gaya hidup. Merokok merupakan salah satu gaya hidup yang dapat di kendalikan, dibutuhkan waktu sepuluh detik untuk nikotin menuju ke otak. Penelitian bertujuan untuk menganalisis hubungan merokok dengan hipertensi di Unit Pelaksana Teknis (UPT) Badan Layanan Umum Daerah (BLUD) Puskesmas Kuok Kabupaten Kampar Tahun 2021. Penelitian dilakukan dengan menggunakan metode cross sectional. Populasi penelitian pasien yang berkunjung untuk berobat ke UPT BLUD Puskesmas Kuok, pengambilan sampel dilakukan dengan teknik purposive sampling. Sampel terdiri dari 75 penderita yang berkunjung berobat ke poli dewasa. Instrumen penelitian berupa lembar check list dan kuesioner tentang kebiasaan merokok dan hipertensi. Data penelitian menunjukkan bahwa jumlah penderita hipertensi yang mengrokok mencapai 52 orang atau 83,9%. Nilai signifikansi (p value) hubungan antara hipertensi dengan kebiasaan merokok sebesar 0,003 menunjukkan bahwa terdapat hubungan antara kebiasaan merokok dengan hipertensi. Nilai OR sebesar 6,067 yang berarti bahwa hipertensi beresiko 6,067 kali lebih tinggi dialami oleh perokok dibandingkan dengan yang tidak perokok.
The Relationship Between Knowledge of Novice Nurses and The Incidence of Phlebitis In Cipto Mangunkusumo Hospital, Jakarta
Authors: Lisnadiyanti  , Nursalam  , Nani Asna Dewi  , Akbar Hidayat
Published: September 2022

Background: Phlebitis leads to increased discomfort for patients, longer hospital stays, and higher healthcare costs. One of the factors causing phlebitis is the lack of skilled nurses when performing infusions. Aim: The purpose of the study was to determine the relationship between novice nurses' knowledge about infusion therapy with the incidence of phlebitis. Methods: This type of research using questionnaire to the nurse was analytic-correlational with a cross-sectional approach, with a total sample of 52 nurses who were inpatients and 54 patients who were given intravenous drip. Univariate and bivariate analyses were performed in data analysis. Results: this research showed 38.5% of nurses had poor knowledge, the incidence of phlebitis was 32.7%, and 62.8% felt comfortable with infusion. There was a significant relationship between nurses' knowledge about infusion therapy with the incidence of phlebitis (p= 0.000; = 0.05), and with quality indicators (p= 0.000; = 0.05). Conclusion: It is recommended for nurses to improve their knowledge and skills of infusion so that complications and discomfort due to infusion can be reduced.
Importance of Beach Evaluation for Integrated Coastal Zone Management
Authors: Saad Raghda , Kallas Ali , Adjizian Gerard Jocelyne , Gerard Pierre
Published: September 2022

Coastal erosion and accretion are short-term and long-term processes that may cause changes in shoreline and beach profiles. Monitoring beach profile is important to figure out the factors that are responsible for these changes so it helps the stakeholders in planning sustainable beach management that plays a vital role in achieving Integrated Coastal Zone Management (ICZM). For this reason, a beach survey was conducted at the study area to monitor and determine the factors that led to erosion and accretion on beach profile. DEM (Digital Elevation Model) helped on comparing between the elevations of ground control points through four seasons of the survey, which compensated: November 2020, December 2020, February 2021, April 2021 and July 2021. The used methodology of using GPS (Global Positioning System) depended on stop and go methodology within the two locations in the study area: site A (Jal El Bahr north of Tyre) and site B (Bahr Slaiyeb south of Tyre). GIS (Geographic Information System) is another tool that was used to have LC (land cover) map. Meteorological data was extracted from Saksakye weather station north of Tyre. Results of beach survey indicated that the two study areas were exposed to change on profile through the study period especially at Bahr Slaiyeb. These changes in the two study areas are a result of anthropogenic pressure (grooming and cleaning, grazing, human trampling, construction, etc..), vegetation cover and meteorological factors (wind speed, wind direction and precipitation). This database could be used to support in outlining the baseline of strategic beach monitoring and ICZM.
ACTUAL SOLUTIONS IN THE DIAGNOSIS OF DISEASES USING ARTIFICIAL INTELLIGENCE AND MACHINE LEARNING METHODS
Authors: Петрушин А.В. , Коваленко А.В. , Овсянникова А.В.
Published: September 2022

Усовершенствования, которые были внесены в вычислительные ресурсы, а также хранение и обмен данными за последнее десятилетие, стали важным инструментом в разработке решений машинного обучения для различных областей жизни человека. Особенную популярность на данный момент приобретают решения машинного обучения в медицине, где они применяются для обширного спектра задач. Таким образом, цель данной работы – рассмотреть актуальные подходы в медицине, а именно в области диагностики заболеваний. В исследовании приведен обзор актуальных решений для диагностики заболеваний из четырех основных направлений медицины: пульмонологии, гастроэнтерологии, кардиологии и неврологии, выбор которых был обусловлен количеством умерших и пострадавших людей от болезней, которые исследуют данные области. Для каждой группы приведенных подходов были определены преимущества и недостатки. Основные проблемы текущих подходов – это требование больших объемов данных и, в дополнение, их недостаток для моделирования, построение прогнозов по одному анализу и неспособность работать в реальном времени и с записанными видео. Исходя из недостатков были определены направления развития, для усовершенствования текущих подходов к применению в клинической практике работниками медицины. Материалы статьи представляют практическую ценность для разработчиков подходов к диагностике заболеваний человека, для ознакомления с существующими подходами и открытыми вопросами по данной области.

The improvements that have been made in computing resources, as well as data storage and exchange over the past decade, have become an important tool in the development of machine learning solutions for various areas of human life. Machine learning solutions in medicine are currently gaining particular popularity, where they are used for a wide range of tasks. Thus, the purpose of this work is to consider current approaches in medicine, namely in the field of diagnosing diseases. The study provides an overview of current solutions for diagnosing diseases from four main areas of medicine: pulmonology, gastroenterology, cardiology and neurology, the choice of which was determined by the number of people who died and suffered from diseases that explore these areas. For each group of approaches presented, advantages and disadvantages were identified. The main problems of the current approaches are the requirement for large amounts of data and, in addition, their lack of modeling, prediction from a single analysis, and the inability to work in real time and with recorded videos. Based on the shortcomings, directions for development were identified to improve current approaches for use in clinical practice by medical professionals. The materials of the article are of practical value for developers of approaches to the diagnosis of human diseases, for familiarization with existing approaches and open questions in this area.
TIME-LIMITED ANALOG-TO-DIGITAL PWM
Authors: Евдокимов С.Э.
Published: September 2022

Описывается система ограничения по времени для системы управления многолучевой ионной установкой, регулирующей работу нескольких каналов управления. Приводится схема для одного канала и результаты её моделирования.

A time limiting system is described for the control system of a multibeam ion facility that regulates the operation of several control channels. The scheme for one channel and the results of its simulation are presented.
BORIS MAKSIMOVICH BREDIKHIN AND HIS CONTRIBUTION TO THE DEVELOPMENT OF NUMBER THEORY
Authors: Овсянникова А.В. , Копанева А.А.
Published: September 2022

В статье проведен глубокий анализ математической деятельности Бориса Максимовича Бредихина и подробно рассмотрен его вклад в развитие теории чисел. Проведена классификация основных достижений Бориса Максимовича и анализ основных полученных результатов. При изучении творчества Б.М. Бредихина отмечено, что развитие дисперсионного метода в работах ученого, позволило ему дать новое решение проблем Гольдбаха и Варинга без использования тригонометрических сумм. Рассмотрен его вклад в становлении теоретико-числовой школы.

The article provides an in-depth analysis of the mathematical activity of Boris Maksimovich Bredikhin and examines in detail his contribution to the development of number theory. The classification of the main achievements of Boris Maksimovich and the analysis of the main results obtained are carried out. When studying the work of B.M. Bredikhin, it was noted that the development of the dispersion method in the scientist's works allowed him to give a new solution to the problems of Goldbach and Waring without using trigonometric sums. His contribution to the formation of the number-theoretic school is considered.
GEOECOLOGICAL ASPECTS OF SPECIALLY PROTECTED NATURAL TERRITORIES DEVELOPMENT IN THE WEST KAZAKHSTAN REGION
Authors: Кириллов С.Н. , Тургумбаев А.А.
Published: September 2022

В статье приведен анализ особо охраняемых природных территорий Западно-Казахстанской области, а также рассматривается возможность изменения их статуса. На территории области земли особо охраняемых природных территорий составляют всего 12,4 тыс. га. Из десяти объектов природно-заповедного фонда три имеют статус государственных заказников республиканского значения, а остальные объекты отнесены к охраняемым территориям местного значения. Предложены варианты мероприятий, направленных на сохранение и увеличение на территории области особо охраняемых природных территорий, а также на организацию заповедника.

The paper provides an analysis of the specially protected territories of the West Kazakhstan region, the possibility of changing their status is also being considered. On the territory of the region, the land of specially protected natural territories is only 12.4 thousand hectares. Of the ten objects of the natural reserve fund, three have the status of state reserves of republican significance, and the remaining objects are classified as local significance. Options for measures aimed at preserving and increasing specially protected natural areas in the region, as well as organizing a reserve are proposed.
ЕДИНСТВО И СООТНОШЕНИЯ ЭНТРОПИЙНЫХ СОСТАВЛЯЮЩИХ В ФИЗИКО-ХИМИЧЕСКИХ ЗАКОНОМЕРНОСТЯХ
Authors: Кораблев Г.А.
Published: September 2022

Все явления и процессы в природе и в мире, идут только в двух энергетических направлениях. Или – по градиенту силового поля, с минимальной затратой энергии (энтропия), или – против градиента, с максимальной затратой энергии (негэнтропия). Графики S-кривых и их номограммы характеризуют динамику изменения энтропийных составляющих в зависимости от основных параметров процесса. Условием стационарного состояние системы является равенство или постоянная величина соотношения ее энтропии и негэнтропии (равновесная динамика). Такие закономерности имеют место во многих явлениях и в конформационных взаимодействиях в физико-химии, в природе, в технике и даже в экономике. Приведены примеры их функционального вклада.

All phenomena and processes in the nature and world proceed only in two energy directions: either along the force field gradient with minimum energy input (entropy) or against the gradient with maximum energy input (negentropy). The graphs of S-curves and their nomograms characterize the dynamics of change of entropic components depending on the process main parameters. The condition of the system stationary state is the equality or constant of the correlation between its entropy and negentropy (equilibrium dynamics). Such regularities are found in many phenomena and conformational interactions in physical chemistry, nature, engineering and even economics. The examples of their functional contribution are given.
ASSESSMENT OF THE FEEDING BASE OF RESERVOIRS OF THE WEST KAZAKHSTAN REGION BY INDICATORS OF BOTTOM INVERTEBRATES
Authors: Сарманов А.Е. , Султанов Е.С. , Сергалиев Н.Х. , Какишев М.Г. , Абулгазиева Г.Б. , Аскарова Д.А.
Published: September 2022

В статье представлены результаты исследования сообществ донных беспозвоночных восьми озёр Западно-Казахстанской области в период с 2018 по 2020 годы: Шалкар, Балыкты Саркыл, Едильсор, Глубинное, Прорва, Сулуколь, Брусяное и Айдын. Анализируются показатели биомассы гидробионтов и уровень развития кормовой базы исследованных озер. По результатам проведённых исследований в бентосных пробах отмечены организмы 101 таксона из групп: Oligochaeta, Hirudinea, Bivalvia, Gastropoda, Crustacea и Insecta. По уровню развития кормовой базыисследованные озераотнесены к классу от очень низкой (α-олиготрофный) до средней продуктивности (β-олиготрофный).

The article presents the results of a study of communities of benthic invertebrates of eight lakes of the West Kazakhstan region in the period from 2018 to 2020: Shalkar, Balykty Sarkyl, Edilsor, Glubinnoe, Prorva, Sulukol, Brusyanoe and Aydin. The article analyzes the indicators of hydrobiont biomass and the level of development of the fodder base of the studied reservoirs. According to the results of the conducted studies, organisms of 101 taxa from the following groups were noted in benthic samples: Oligochaeta, Hirudinea, Bivalvia, Gastropoda, Crustacea and Insecta. According to the level of development of the feed base, the studied reservoirs are classified from very low (α-oligotrophic) to medium productivity (β-oligotrophic).
QUALITY PROBLEMS IN THE PROCUREMENT OF GOODS, WORKS, SERVICES FOR STATE AND MUNICIPAL NEEDS
Authors: Родионова С.Н. , Шишкина Н.П.
Published: September 2022

Качество определяет степень полезности приобретаемого товара. Именно поэтому целью заключения государственного (муниципального) контракта на поставку товаров, работ, услуг является не только возможность снижения затрат на осуществление такой закупки, но и более полное удовле­творение государственных и муниципальных потребностей за счет высокой полезности (качества) товаров, работ, услуг. В статье рассмотрены основные механизмы гарантирования поставки товаров (работ, услуг) заданного качества в рамках госконтракта. Рассмотренные нормы современного законодательства позволяют заказчику выстроить свою работу с поставщиком (исполнителем) таким образом, чтобы у последнего не было возможности обойти требования контракта в части обеспечения качества поставляемых (оказываемых) товаров, работ, услуг.

Quality determines the degree of usefulness of the purchased product. That is why the purpose of concluding a state (municipal) contract for the supply of goods, works, services is not only the possibility of reducing the costs of such a purchase, but also a more complete satisfaction of state and municipal needs due to the high utility (quality) of goods, works, services. The article discusses the main mechanisms for guaranteeing the supply of goods (works, services) of a given quality within the framework of a state contract. The considered norms of modern legislation allow the customer to build his work with the supplier (contractor) in such a way that the latter would not have the opportunity to circumvent the requirements of the contract in terms of ensuring the quality of the goods, works, and services supplied (rendered).
PROFESSIONAL DEVELOPMENT OF HIGHER EDUCATION IT-TEACHERS IN DIGITALIZATION CONDITIONS
Authors: Андреева В.В.
Published: September 2022

Рассматриваются проблемы повышения квалификации вузовских преподавателей информационных технологий в инновационном центре Иннополис, анализируются недостатки в его работе и отмечается, что для формирования более высокого качества переподготовки требуется модифицировать управление процессом обучения в соответствии с современными дидактическими и информационными технологиями.

The problems of advanced training of university teachers of information technologies in the Innopolis innovation center are considered, shortcomings in its work are analyzed, and it is noted that in order to form a higher quality of retraining, it is necessary to modify the management of the learning process in accordance with modern didactic and information technologies.
Information security as an element of economic security of a state educational institution
Authors: Ершова Е.Е.
Published: September 2022

В статье анализируются особенности обеспечения информационной безопасности современных образовательных учреждений. Рассмотрены основы защиты информации и их законодательное обеспечение. Также выявлена важная роль внедрения качественных инструментов по обеспечению информационной безопасности образовательных организаций как важнейшей составной части их экономической безопасности. Выделены используемые такими учреждениями определенные системы защиты от внешних и внутренних угроз, помогающие максимально защитить имеющуюся информацию.

The article analyzes the features of information security of modern educational institutions. The basics of information protection and their legislative support are considered. The important role of the introduction of high-quality tools to ensure the information security of educational organizations as the most important component of their economic security is also revealed. Certain systems of protection against external and internal threats used by such institutions are highlighted, helping to protect the available information as much as possible.
Education management system in the context of digital transformation
Authors: Макаренко Н.В.
Published: September 2022

В данной статье деятельность муниципалитета с точки зрения системы управления образования в современных реалиях, а именно – условиях цифровой трансформации общества и его жизнедеятельности, проанализированы и приведены основные преимущества и недостатки развития цифровизации образования на муниципальном уровне. Но прежде автором рассмотрены теоретические, нормативно-правовые аспекты текущей деятельности муниципалитета, как ключевого звена в решении проблем любого характера в пользу местного населения, в том числе и в такой жизненно важной сфере, как образование. В заключении приведены приоритетные направления развития управления образованием в условиях цифровизации, что должно эффективно сказаться на оптимизации организационно-управленческих процессов в области цифровой трансформации муниципального образования, а также активном проникновении цифровых технологий в образовательный процесс различных образовательных организаций.

In this article, the activities of the municipality from the point of view of the education management system in modern realities, namely, the conditions of digital transformation of society and its life, the main advantages and disadvantages of the development of digitalization of education at the municipal level are analyzed and presented. But first of all, the author considers the theoretical, regulatory and legal aspects of the current activities of the municipality as a key link in solving problems of any nature in favor of the local population, including in such a vital area as education. In conclusion, the priority directions of the development of education management in the conditions of digitalization are given, which should effectively affect the optimization of organizational and managerial processes in the field of digital transformation of the municipality, as well as the active penetration of digital technologies into the educational process of various educational organizations.
صور وأحكام عقد اقتسام الوقت؛ دراسة فقهية قانونية
Authors: العبيد سامي أحمد , النجار ياسر عبدالحميد
Published: September 2022

في إطار النشاط الاقتصادي ظهرت معاملات اتخذت مجالا بين أفراد المجتمع، وأهم ما يميز هذا النظام أنه مزج عنصر المكان وهو الوحدة العقارية وعنصر الزمان المتمثل بالوحدة الزمنية، التي تمكن المستفيد من الانتفاع أثناء العام وعلى مدار سنوات، والمستفيد لا ينتفع كامل العام وإنما يتناوب مع الباقين في ضوء القسمة، وستعتمد هذه الدراسة على المنهج الاستقرائي بجمع البيانات، ثم معالجتها وتحليلها وتصنيفها ثم تلخيصها مع إضافة الأفكار التي استنتجها، للوصول إلى تفسير للمنهج، استناداً للدليل الشرعي والنظامي. فعقد اقتسام الوقت الهدف إشراك أكبر عدد وبأقل تكلفة، وكيف عالجت الشريعة والنظام مخالفاتها، ووضع الصيغ بصورة شرعية. ويمكن إجمال أهم النتائج بأن المقصود من عقد اقتسام الوقت استفادة وإشراك أكبر للمشتركين وللعقد صورتان فيرد بصورة عقد بيع...ويأخذ إما صورة عقد الإيجارة أو صورة عقد منشئ لحق منفعة. ويبنى هذا العقد على ثلاثة أركان رضا ومحل وسبب، فلا تصلح القواعد العامة في الفقه والقانون سواء تلك المتعلقة بعقد البيع أو بعقد الإيجار بالمطابقة. ومكان العقد هو الوحدة العقارية والوقت الذي يمتاز به، ويتكون هذا العقد من خصائص، فهو عقد معاوضة.
دور مؤسسات المجتمع المدني الأردنية في مواجهة التطرف (دراسة ميدانية من وجهة نظر منتسبي مؤسسات المجتمع المدني الأردنية 2021)
Authors: الطرمان محمد عودة فلاح , المجالي فايز عبدالقادر
Published: September 2022

هدفت هذه الدراسة إلى تسليط الضوء على دور مؤسسات المجتمع المدني الأردنية في مواجهة التطرف من وجهة نظر منتسبيها، وقد تم استخدام المنهج الوصفي المسحي، وتكونت عينة الدراسة من (378) من منتسبي مؤسسات المجتمع المدني الأردنية، وأشارت نتائج الدراسة إلى وجود وعي مرتفع لدى أعضاء مؤسسات المجتمع المدني الأردنية بمفهوم التطرف، وأن وجهة نظرهم حول دور مؤسسات المجتمع المدني الأردنية في مكافحة التطرف قد جاء بمستوى مرتفع، وأن هناك العديد من التحديات التي تواجهها مؤسسات المجتمع المدني الأردنية في مكافحة التطرف من وجهة نظر عينة الدراسة، وأهمها ضعف التمويل اللازم لتنفيذ المبادرات والأنشطة الهادفة لمكافحة التطرف، كما أشارت نتائج الدراسة إلى عدم وجود فروق ذات دلالة إحصائية عند مستوى (0.05≥ α) على الدرجة الكلية لدور مؤسسات المجتمع المدني الأردنية في مكافحة التطرف تعزى لمتغير الجنس، ومتغير الفئة العمرية، ومتغير سنوات الخبرة في العمل التطوعي، ومتغير المستوى الأكاديمي، ومتغير المهنة، وقد أوصت الدراسة مؤسسات المجتمع المدني الأردنية أن تبادر في وضع استراتيجية واضحة وشاملة لمكافحة التطرف بالشراكة مع كافة القطاعات الرسمية وغير الرسمية الأخرى.
Enantioselective Synthesis of Skipped Dienes via Iridium-Catalyzed Allylic Alkylation of Phosphonate Carbanions
Authors: Seal Arko , Mukherjee Santanu
Published: September 2022

An enantioselective synthesis of skipped diene has been developed based on an iridium-catalyzed allylic alkylation of phosphonate carbanions and Horner-Wadsworth-Emmons olefination. This two-step protocol benefits from the ease of accessibility of the starting materials and delivers C2-substituted skipped dienes, bearing a C3 stereogenic center, in moderate to excellent yields and generally with outstanding enantioselectivities. This is the first catalytic enantioselective allylic alkylation of phosphonate carbanions.
High Resolution Photoelectron Spectroscopy of the Acetyl Anion
Authors: DeWitt Marty , Babin Mark , Lau Jascha , Solomis Tonia , Neumark Daniel
Published: September 2022

High-resolution photoelectron spectra of cryogenically cooled acetyl anions (CH3CO¯) obtained using slow photoelectron velocity-map imaging are reported. The high resolution of the photoelectron spectrum yields a refined electron affinity of 0.4352 ± 0.0012 eV for the acetyl radical as well as the observation of new vibronic structure that is assigned based on ab initio calculations. Three vibrational frequencies of the neutral radical are measured to be 1047 ± 3 cm-1 (ν6), 834 ± 2 cm-1 (ν7), and 471 ± 1 cm-1 (ν8). This work represents the first experimental measurement of the ν6 frequency of the neutral. The measured electron affinity is used to calculate a refined value of 1641.35 ± 0.42 kJ mol 1 for the gas-phase acidity of acetaldehyde. Analysis of the photoelectron angular distributions provides insight into the character of the highest occupied molecular orbital of the anion, revealing a molecular orbital with strong d-character. Additionally, details of a new centroiding algorithm based on finite differences, which has the potential to decrease data acquisition times by an order of magnitude at no cost to accuracy, are provided.
Mechanics of lithium metal at the nanoscale
Authors: Aspinall Jack , Armstrong David , Pasta Mauro
Published: September 2022

The fracture of ceramic solid electrolytes, driven by the plating of lithium within cracks, has been identified as one of the fundamental issues to successfully develop solid-state batteries. Understanding the mechanics of lithium at the nanoscale is therefore essential. In this work, the elastic and plastic properties of lithium are measured by nanoindentation within an electron microscope. Lithium metal samples are characterised by electron backscattered diffraction (EBSD) before and after indentation to understand the dependence of the mechanical properties on crystallographic orientation, and determine the stiffness tensor components, moduli and Poisson’s ratio using a method first proposed by Vlassak and Nix. The measured stiffness tensor components are C11=13.3, C12=11.2, and C44=8.8 GPa. Hardness measurements show a clear size effect with hardness in excess of 100 MPa observed for indent depths below 300 nm, which could contribute toward observed lithium filament propagation.
Mechanistic Insights Into Substrate Positioning Across Non-heme Fe(II)/alpha-ketoglutarate-dependent Halogenases and Hydroxylases
Authors: Kastner David , Nandy Aditya , Mehmood Rimsha , Kulik Heather
Published: September 2022

Non-heme iron halogenases and hydroxylases activate inert C-H bonds to selectively catalyze the functionalization of a diversity of biological products under physiological conditions. To better understand the differences in substrate positioning key to their divergent reactivities, we compiled available crystallographic and spectroscopic data, which revealed that hydroxylases prefer an acute oxo-Fe-H target angle, while halogenases prefer a more obtuse angle. With molecular dynamics simulations guided by this experimental information, we simulated the representative hydroxylases TauD and VioC and the halogenases BesD and WelO5 with both acute and obtuse harmonic restraints. We identified key native interactions that maintain the angle of approach in the respective enzymes, such as Asp94 in TauD and His127 in BesD. Moreover, our simulations reveal that the protein environment in halogenases prevents the sampling of acute angles observed in hydrogenases and vice versa. To validate these classical observations, we optimized the structure with large-scale quantum mechanical (QM) simulations and confirmed QM-derived substrate-enzyme hydrogen bond strengths were higher in the native configurations. To understand the effect of positioning on reactivity, we confirmed that reaction barriers for the rate-limiting hydrogen atom transfer reaction was slightly lower from an acute angle regardless of the enzyme-substrate complex. Analysis of the halogenase reaction coordinates reveals the formation of hydrogen bonding networks between the Fe(II)-hydroxyl, monodentate succinate, and a member of the second coordination sphere that may inhibit the hydroxyl rebound.
Model Hemin Derivatives as a New Generation of Iron-based Nitric Oxide Scavengers
Authors: Pandit Abhay , Amir Alsharabasy Amir , Warneke Jonas , Warneke Ziyan , Glynn Sharon , Farràs Pau
Published: September 2022

Nitric oxide plays multiple pathophysiological roles in breast cancer and regulates the apoptosis and migration of tumour cells according to its gradients. Hence, the modulation of its levels by selective scavenging can effectively treat the fast-growing triple-negative breast cancer (TNBC). Here, we report the modification and full characterization of the hemin (Fe(III)-protoporphyrin IX) structure to minimize the levels of its aggregation and protect against physiological oxidative degradation. The affinity of the final hemin conjugates towards ●NO was studied experimentally and theoretically using quantum mechanics calculations with the further testing of the downstream effects on TNBC cell migration. These compounds represent model hemin derivatives, which showed differential binding to ●NO with different levels of resistance towards the oxidative degradation and aggregation. Moreover, that was accompanied by their efficiency at stopping the ●NO-induced migration of cells, suggesting the promising application of some of them for the further treatment of TNBC.
Analysis of factors influencing the decision to transfer mosaic embryos at the stage of preimplantation genetic testing
Authors: Федотова Кристина Васильевна , Панкрушина Алла Николаевна
Published: September 2022

При анализе итогов проведения преимплантационного генетического тестирования, предоставленных тверской медицинской лабораторией ООО «Медикал Геномикс», выявлены факторы, позволяющие сформировать заключение о дальнейших действиях с мозаичными эмбрионами. После обобщения полученных результатов составлены рекомендации по их отбору. Не рекомендованы к переносу мозаичные эмбрионы с дополнительной анеуплоидией, с 3 и более связанными с мозаицизмом хромосомами, с аберрациями по 13, 14, 16, 18, 21, X и Y хромосомам. Рекомендована консультация генетика для мозаичных эмбрионов, у которых отсутствуют сопутствующие анеуплоидии, с 1-2 задействованными в мозаицизме хромосомами, с генетическими мозаичными дефектами по всем хромосомам, кроме 13, 14, 16, 18, 21, X и Y, преимущественно с мозаичными делециями и дупликациями.

When analyzing the results of preimplantation genetic testing provided by the Tver medical laboratory of Medical Genomics LLC, factors were identified that make it possible to form a conclusion about further actions with mosaic embryos. After summarizing the results obtained, recommendations for their selection were made. Mosaic embryos with additional aneuploidy, with 3 or more chromosomes associated with mosaicism, with deviations from 13, 14, 16, 18, 21, X- and Y- chromosomes are not recommended for transfer. Mosaic embryos that lack concominant aneuploidy, with 1-2 chromosomes involved in mosaicism, with genetic mosaic defects on all chromosomes, except 13, 14, 16, 18, 21, X and Y, mainly with mosaic deletions and duplications, are recommended for consultation by a geneticist.
How should monetary policy respond to a contraction in labor supply?
Authors: Kurozumi Takushi , Van Zandweghe Willem
Published: September 2022

Conventional wisdom holds that a central bank should tighten monetary policy after a surprise decline in labor supply to offset the inflationary effects of the decline. However, this policy prescription comes from models of monetary policy that abstract from labor force participation. We examine the policy implications of worker entry into and exit from the labor force. We find that cyclical changes in labor force participation call for a less restrictive policy response to a decline in labor supply. The less restrictive policy response is appropriate because policy tightening reduces the labor force and thus raises wage growth. The optimal policy response dampens the reduction in the labor force and brings about a period of higher inflation.
RABBITMQ MICROSERVICE WITH ASP.NET CORE WEB API FOR ASYNC OPERATIONS
Authors:   Bharati Vidyapeeth (Deemed to be University) Pune, INDIA, Narayan More Vikram
Published: September 2022

Nowadays, developers prefer to create apps using a microservice design rather than a monolithic system. The entire functionality is typically included in a single system in monolithic architecture, which is frequently huge, complicated, and closely connected. In other hand, microservice architecture works with independent and decoupled services. A message broker plays pivotal role in microservice architecture. One of the most widely used message-broker services is RabbitMQ. Most important is RabbitMQ is Open-Source message broker. RabbitMQ helps microservices to exchange data while staying independent. This article focuses on implementation of RabbitMQ with ASP.Net core and its advantages for asynchronous operations.
Delay margin computation of load frequency control system with demand response and constant communication delays
Authors: Jawahar A. , Ramakrishanan K.
Published: September 2022

The paper aims to present a comprehensive delay-dependent stability analysis technique of a networked single area Load Frequency Control (LFC) systems integrated with demand response. Demand Response (DR) has been an integral part of power system control and operation. The time-delays in LFC schemes are due to the utilization of communication channels for signal transmission among the various sub-systems and control center. The deterioration of the dynamic performance of the system is the most feasible effect of time-delays and at the worst these delays lead to instability. Therefore, the computation of delay margins for a stable operation of the single-area LFC system with DR control is crucial. A less conservative stability criterion using Lyapunov approach is derived in linear matrix inequality framework for determining the stability of closed loop LFC system under study. The stability criterion is tested for different subsets of the controller parameters and participation factors using standard benchmark system. Through extensive simulation results, the analytical results are validated. The time domain simulation results indicate the effectiveness of the analytical results.