bluuebunny/crossref_metadata_2025 huggingface dataset:
An Ensemble Method for the Regression Model Parameter Adjustments: Direct Approach
Authors:   Lviv Polytechnic National University, University of Birmingham, United Kingdom, Izonin Ivan
Published: January 2024

Intelligence analysis of tabular datasets in the field of biomedical engineering is a complex task. This is explained both by the multidimensional datasets and the complex relationships between the components of the set, and by the high price of the error in the prediction. The task becomes more difficult in the case of limited data for training, which often occurs in this field. This is due to the enormous time, material, or human resources required to collect enough data to implement training procedures with classical machine learning tools. This paper presents a new approach to solving this task. The author has developed a new ensemble method for the regression model parameters adjustments (direct approach) with the possibility of cyclically increasing the accuracy of intellectual analysis of short datasets. The basis of the method is the use of the rational fraction and two machine learning algorithms for its parametric identification. Modeling of the method's efficiency on a real-world short set of data from the field of biomedical engineering demonstrated the high accuracy of the developed method's operation. In particular, the prediction accuracy of the General Regression Neural Network was increased by more than 14% (based on the coefficient of determination. That is why the developed method can be used to solve various applied biomedical engineering tasks in the case of the need to analyze small amounts of data
Improving the Accuracy of the Neural Network Models Interpretation of Nonlinear Dynamic Objects
Authors:   Odessа Polytechnic National University, Krykun Valentyn
Published: January 2024

The paper is devoted to the problem of neural network interpretation in the tasks of modeling nonlinear dynamic objects. The purpose of the work is to improve the accuracy of the neural network models interpretation of nonlinear dynamic objects and to determine the scope of their effective application. This goal is achieved by applying analytical models in the form of integral-power series based on multidimensional weight functions. The scientific novelty of the work lies in the use of nonlinear dynamic models in the form of integral-power series based on multidimensional weight functions instead of linear surrogate models. It allows to improve modeling accuracy. The practical usefulness of the work is determination of the effective application area of analytical interpretive models. The practical significance of the obtained results lies in the application of the proposed models for the interpretation of neural network models of nonlinear dynamic objects, which allows to increase the accuracy of interpretation models compared to linear surrogate models.
Approach to Computer Modelling of Power Energy Devices’ Periodic Modes
Authors:   Norwegian University of Science and Technology, Verlan Andriy ,   National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Fedorchuk Volodymyr ,   Kamianets-Podіlskyi Ivan Ohiienko National University, Sterten Jo ,   Norwegian University of Science and Technology
Published: January 2024

The increasing complexity of power energy devices poses new challenges for designers, and the solutions depend on the efficiency and adequacy of computer modeling of electromagnetic processes in real circuits of power energy devices with the required accuracy. Using known methods for constructing equivalent circuits, it is possible to obtain equivalent circuits of power energy devices. However, a high number of nodes of equivalent circuits (hence, a high order of systems of differential equations) often does not provide solving the analysis problems with the required accuracy and with time constraints which requires new, more effective approaches for modeling periodic modes of power energy devices’ circuits.
Heuristic Models of Measurement Procedures in the Problems of Analytical Research of Tensometric Systems
Authors:   Odessа Polytechnic National University, Prokofieva Ludmila , Savelev Artem ,   Odessа Polytechnic National University
Published: January 2024

The trend of increasing the complexity and hardware of measurement systems (MSS) remains constant in connection with the massive use of computer technology in measurement processes. The excessive complexity of the newly created AZSV, the high cost of components and software, and the sufficiently low level of production quality do not allow us to rule out the possibility of errors, which cause a violation of the AZSV's performance as a whole, as well as a decrease in their productivity. The term «reliability of the AZSV», similar to the term «reliability of the equipment» in the tasks of diagnostics of strain gauge equipment, means that «failures», in this case (it means the presence in the composition of the SV, in addition to purely hardware, as well as software), as a result of the appearance of errors, has a qualitatively different physical nature than purely AZ failures. This indicates the possibility of using certain terms and indicators of the reliability of technical means in the study of the quality of AZSV. In particular, this is justified by the need to solve the problem of resource (or cost) distribution between the AZ and the software (software) while ensuring the given reliability indicator of the JI. Checking the correct functioning of AZ and software, which are part of the JI, is carried out at the stage of configuration and testing. As a rule, the main factor in the adjustment is the time spent on it. Therefore, in a number of models for assessing the reliability of JI, along with the necessary time of their operation in regular modes (the actual implementation of the measurement process), it is necessary to consider another time factor – the time of setting up AZ and PZ in relation to the use of these means as intended. An effective way to determine the reliability of strain gauge systems, and especially at the design stage, is the use of mathematical modeling, the results of which are determined by the correctness of the models of measurement procedures based on it
Multipl Skleroz Hastalarında Hastalık Modifiye Edici Tedavilere Uyumu Etkileyen Faktörlerin Değerlendirilmesi
Authors: Koç Emine Rabia , Sarıdaş Furkan , Turan Ömer Faruk
Published: January 2024

Multipl skleroz, dünya çapında yaklaşık 2,3 milyon insanı etkileyen, en sık genç yetişkinlerde görülen, edinilmiş sakatlığa yol açan nörolojik bir hastalıktır. MS kronik bir hastalık olduğundan hastaların uzun süreli tedavi kullanması gerekmektedir. Hastaların tedaviye uyumu hastalığın seyrini ve uzun dönem prognozu etkilediğinden öncelikli olarak dikkate alınması gereken bir konudur. Tedavi uyumunu etkileyen birçok faktör vardır. Olumsuz faktörlerin tespiti ve düzeltilmesi tedavi etkinlik ve güvenirlilik sonuçlarını ve hastalık sonlanımını etkiler. Bu çalışmada MS polikliniğinde takip edilen hastaların hastalık modifiye edici tedavilere uyumuna etki eden faktörlerin değerlendirilmesi planlanmıştır. Çalışmaya 209 MS hastası dahil edildi ve hastaların yaşı, cinsiyeti, hastalık süresi, eğitim düzeyi, geliri, ilaç kullanımı ve ilaç uygulanma şekli kaydedildi. MS hastalarına Morisky İlaç Uyum Ölçeği-8 (MMAS-8) uygulandı. Ortalama MMAS-8 puanı 6,05±1,94 idi. Tedavi uyumu %31 düşük (n=66), %36,4 orta (n=76) ve %32,1 yüksek (n=67) idi. Yaş, cinsiyet, hastalık süresi, gelir düzeyi, hastalığı değiştirici tedaviler, bu tedavilerin türü ve uygulanma şekline göre tedaviye uyum açısından farklılık saptanmadı (p= 0,074, 0,070, 0,600, 0,976, 0,940, 0,356, 0,249, 0,053, 0,701). Çalışmamızda MS hastalarında yaş, eğitim düzeyi, hastalık süresi, tedavi seçeneği veya uygulama şeklinin hastalık değiştirici tedaviye uyumu etkilemediği görüldü. Çalışma sonuçlarımız MS hastalarında ilaç uyumunu etkileyen farklı faktörlerin açıklanması gerektiğini göstermektedir.
PENERAPAN GREEN MANAGEMENT SEBAGAI STRATEGI PERUSAHAAN DALAM MENGHADAPI KONDISI LINGKUNGAN
Authors: Sabita Julianda Putri , Simanjorang Feronica
Published: January 2024

The most significant environmental damage can occur due to the large number of industrial activities. The development of technology and industry has greatly increased the use of natural resources and energy sources. The waste generated is known to have an impact on environmental damage. Corporate responsibility (CSR) in managing the environment can help restore environmental conditions. By using literature study, the author aims to describe the form of green management implementation by The Body Shop by looking at the application of marketing mix that has been done. The author collects secondary data sourced from websites, journals, and news. The researcher found that The Body Shop, both externally and internally, has carried out various activities in line with the concept of green management such as 3R and various campaigns to protect the earth.
PENGARUH PERSEPSI KEMUDAHAN DAN PERSEPSI KEAMANAN TERHADAP MINAT PENGGUNAAN E-MONEY DI KALANGAN GENERASI MILLENIAL
Authors: Adinda  , Mardhiyah Ainun
Published: January 2024

Technological advances in payment systems are slowly shifting the role of cash as a means of payment to more efficient and economical forms of non-cash payments. Therefore, the development of the use of non-cash payment instruments needs serious attention. This study aims to determine how the Effect of Perceptions of Ease and Perceptions of Security on Interest in Using E-money. This study uses quantitative research methods with an associative approach. The population in this study were e-money users in the Medan Baru District area. The results showed that the Ease of Perception had a positive and significant effect of 27.1% on Interest in Using E-money and Perception of Security had a positive and significant effect of 40% on Interest in Using. Based on calculations with the coefficient of determination, the R value is 81.9%, which indicates that the relationship between perceived convenience and perceived security on interest in using e-money is quite close. The Rsquare value of 0.671 indicates that 67.1% of the Usage Interest variable can be explained by the Ease of Perception and Perception of Security. While the rest is influenced by other variables not examined in this study.
The Influence of Electronic Word of Mouth and Brand Image on The Purchase Decision of Video on Demand Netflix Subscription
Authors: Gultom Monica Desyderya , Adlina Hafiza , Siregar Onan Marakali
Published: January 2024

ABSTRACT: The Covid-19 pandemic has caused changes in everyone. These changes have influenced the communication industry which created the concept of Video On Demand. Netflix is one of the streaming services that have a variety of shows such asmovies, anime, documentaries, and many more. During the first time, Netflix came to Indonesia, they had many issues with government and public services. The purpose of this research is to analyze the effect of electronic word of mouth (E-WOM) and brand image on the purchase decision of Netflix subscriptions in Medan city. The research used an associative method with a quantitative approach. The sample andpopulations in this research are 100 people who have used Netflix in Medan City. Data were collected using a survey method and then analyse by using simple linier regression. The results of the research conducted indicate that the E-WOM variable (X1) has no significant effect on purchasing decisions. Meanwhile, the brand image variable (X2) has significantly influenced buying decisions. However, E-WOM and brand image have an equal (simultaneous) effect on purchase decisions (Y). The result of the correlation coefficient (R) of 0.836, where this coefficient value shows the relationship between E-WOM and brand image on purchasing decisions.
Soybean production, marketing costs, and export competitiveness in Brazil and the United States
Authors: Valdes Constanza , Gillespie Jeffrey , Dohlman Erik N. ,   United StatesDepartment of AgricultureEconomic Research Service
Published: January 2024

The production of soybeans, the fourth leading crop produced globally, is projected to reach a record level in marketing year (MY) 2023/24. Combined, soybeans and their derivatives--soybean meal and soybean oil--are the most traded agricultural commodity, accounting for nearly 9 percent of the total value of global agricultural trade. Brazil is now the world's largest soybean producer and exporter, while the United States and Brazil jointly supplied nearly 90 percent of soybean exports to the world in MY 2021/22. Soybeans stand out as a crucial crop in the expansion of Brazil's farm sector and the country's ascent as a top global supplier of agricultural products. This report focuses on the export competitiveness for soybeans in Brazil and in the United States over the MY 2017/18--2021/22 periods, by comparing farm-level production costs, producer returns, the cost of internal transportation, and the cost of shipping to a common export destination. With soybean production in Brazil expected to reach a record high in MY 2023/24, a depreciating Brazilian currency, and the country's exporting capabilities expecting a boost (from expanding transportation infrastructure), changes in the competitiveness of Brazil will have important implications for U.S. and international agricultural markets.
Desenvolvimento de metodologia para gestão de integridade de ativos em Universidades e Centros de Pesquisa
Authors: Oliveira Rodrigo Suzano de
Published: January 2024

Este artigo descreve a aplicação de uma metodologia diferenciada que desenvolvi para aprimorar e facilitar o trabalho de gestão de ativos em universidades e centros de pesquisa renomados. Com certa frequência, estudos e pesquisas científicas importantes são interrompidos ou desperdiçados devido a falhas inesperadas em equipamentos e sistemas de infraestrutura que são disponibilizados pelas universidades e centros de pesquisa para uso dos pesquisadores. Para resolver este problema, tal metodologia utiliza conceitos e práticas estruturadas, que são habitualmente empregados na área de integridade de ativos, integrando-os de forma singular a relatórios únicos de avaliações de engenharia que foram elaborados ao longo de vários anos durante meu trabalho de campo em diversos países, sendo esta integração feita dentro de um sistema computadorizado de gestão da manutenção. Este processo tem como objetivo final a maximização da confiabilidade e performance de sistemas e equipamentos críticos que são utilizados na infraestrutura e realização de pesquisas de grande relevância em âmbito nacional e internacional. Através de estudos de caso conduzidos em duas grandes universidades dos Estados Unidos, foi possível analisar quantitativa e qualitativamente a eficiência desta metodologia inovadora. Conforme será apresentado neste artigo, os principais resultados obtidos foram a redução da quantidade de reparos ou paradas não planejadas, a melhoria da qualidade e eficiência dos programas de manutenção, o aumento da confiabilidade e da vida útil dos equipamentos e sistemas críticos de pesquisas, o aumento da quantidade de ativos com um plano de manutenção adequado e o aperfeiçoamento dos sistemas computadorizados de gerenciamento de manutenção utilizados por essas instituições. Estes resultados se traduzem em estudos e pesquisas científicas concluídos de forma mais rápida e com dados mais confiáveis.
HENRYK MOSING ORAZ STRATEGIA DZIAŁAŃ EPIDEMIOLOGICZNYCH PODCZAS TYFUSU PLAMISTEGO
Authors: Kuzminov B.P. , Smolnytska V.L.
Published: January 2024

Narodowy Uniwersytet Medyczny imienia Daniela Halickiego we Lwowie, Lwów, Ukraina Streszczenie. Artykuł poświęcony jest działalności naukowej doktora nauk medycznych Henryka Mosinga, który opracował strategię walki z tyfusem plamistym. Wdrożenie opracowanych przez H. Mosinga środków przeciwepidemicznych umożliwiło po raz pierwszy w historii kraju ograniczenie zachorowań do poziomu bezpiecznego epidemiologicznie i doprowadzenie tej groźnej infekcji do stanu eliminacji.
ХРОНІЧНЕ ОБСТРУКТИВНЕ ЗАХВОРЮВАННЯ ЛЕГЕНЬ ПОВ’ЯЗАНЕ З КОРОНАВІРУСНОЮ ХВОРОБОЮ 2019 (COVID-19)
Authors: Кузьмінов Б.П. , Мажак К.Д. , Ткач О.А. , Рудницька Н.Д.
Published: January 2024

Анотація. Перебіг коронавірусної хвороби 2019 (COVID-19) ускладнюється різними супутніми захворюваннями; хронічне обструктивне захворювання легень (ХОЗЛ) є одним із них. Це дослідження мало на меті дослідити вплив ХОЗЛ, як потенційного супутнього захворювання на прогноз формування важкого перебігу COVID-19. Попередні дані щодо Covid-19 продемонстрували нижчу поширеність ХОЗЛ, ніж можна було очікувати при гострому респіраторному захворюванні, такому як COVID-19. Цей факт призвів до припущення, що застосування інгаляційних глюкокортикостероїдів (ІГКС) може захистити від інфікування або розвитку тяжчого перебігу COVID-19. Аналіз досліджень, проведених у різних групах хворих з важким перебігом Сovid-19 з коморбідністю ХОЗЛ дозволив виявити статистично значимі дані для вдосконалення прогностичних шкал несприятливого прогнозу хвороби. Подальше вивчення і застосування таких показників у загальній клінічній практиці дозволить вчасно виявляти пацієнтів групи ризику з метою прицільного моніторингу та ранньої зміни чи інтенсифікації лікувальної тактики, в тому числі супутніх захворювань.
ПЕРСОНІФІКОВАНІ ПІДХОДИ ДО ХІМІОПРОФІЛАКТИКИ ТУБЕРКУЛЬОЗУ У ДІТЕЙ ІЗ ОСЕРЕДКІВ ТУБЕРКУЛЬОЗНОЇ ІНФЕКЦІЇ
Authors: Мажак К.Д. , Ткач О.А. , Геник І.Д. , Голубченко Л.К.
Published: January 2024

Анотація. Вивчено ефективність хіміопрофілактики туберкульозу у 230 дітей-підлітків із осередків туберкульозної інфекції різного ступеня епідеміологічної небезпеки. Висока частота наростання туберкулінової чутливості, стійка гіперергічна туберкулінова реакція після курсу хіміопрофілактики у дітей із осередків лікарсько-стійкого туберкульозу свідчить про недостатню ефективність її стандартних режимів і необхідність удосконалення індивідуального підходу до профілактики туберкульозу у контактних дітей з урахування всіх факторів ризику. Доведено, що диференційоване застосування поряд з туберкулостатичними препаратами засобів патогенетичної терапії різного спрямування з врахуванням особливостей стану організму підвищує ефективність хіміопрофілактики, нівелює негативні прояви від застосування хіміопрепаратів та супутніх захворювань.
РОЗМІРНІ ОЗНАКИ ASARUM EUROPAEUM L. У ФІТОЦЕНОЗАХ ШИРОКОЛИСТЯНИХ ЛІСІВ НІМЕЧЧИНИ ТА УКРАЇНИ
Authors: Ярошенко Наталія Павлівна
Published: January 2024

Asarum europaeum L. є важливим компонентом ярусу трав листяних лісів, який поширений майже по всій Європі, окрім Скандинавії та Великої Британії. Наразі в системі популяційного вивчення важливе місце посідає з’ясування характеру реагування розмірних показників рослин та популяцій на еколого-ценотичні умови, притаманні тій чи іншій частині ареалу. Тому метою даної публікації було визначено: здійснити оцінку та порівняти морфоознаки рослин і популяцій A. europaeum, які зростають у фітоценозах широколистяних лісів, типових для півдня Нижньої Саксонії (Ґеттінгенський ліс) та Лівобережного Лісостепу України (Сумський геоботанічний округ). Інформацію про стан досліджуваних фітоценозів отримували на основі застосування загальноприйнятих геоботанічних методів. Було вивчено 14 популяцій: по сім із кожного регіону. Аналіз супроводжувався оцінкою у рослин 10 статичних морфопараметрів (семи метричних та трьох алометричних). Встановлено, що популяції A. europaeum Ґеттінгенського лісу статистично достовірно відрізняються між собою значеннями усіх оцінюваних морфопараметрів. У лісах Сумського геоботанічного округу статистично достовірні відмінності за популяціями зареєстровані у 60% морфопараметрів. Популяціям A. europaeum притаманні статистично достовірні не лише міжпопуляційні, а й міжрегіональні відмінності розміру, які супроводжуються формуванням у кожному фітоценозі рослин із специфічною морфоструктурою. За результатами порівняння середніх значень морфопараметрів встановлено, що рослинам та популяціям A. europaeum Сумського геоботанічного округу притаманні вищі значення площі листків на одиницю фітомаси (LAR) та фотосинтетичного зусилля (LWR) порівняно з представниками, зібраними у Ґеттінгенському лісі. Загалом це характерно й для значень загальної маси рослин, загальної маси листків та їхньої площі, а також для площі та маси одного листка. Значенням абсолютної більшості морфопараметрів (70%) в умовах Сумського геоботанічного округу притаманний й вищий розмах варіювання показників. У Сумському геоботанічному районі одними із найсприятливіших щодо формування та росту рослин A. europaeum є умови угруповань Acereto (platanoiditis)– Tilietum (cordatae) aegopodiosum (podagrariae) та Tilieto (cordatae)–Aceretum (platanoiditis) stellariosum (holosteae) (при зімкнутості верхніх ярусів лісу на рівні 0,6), а в Ґеттінгенському лісі – Lamio (maculatum) – Quercetum (petraeae).
Reproductive and productive behavior of hair sheep under an intensive production system
Authors: Limas-Martínez Andrés G. , Hernández-Meléndez Javier , Velázquez-Morales José V. , Cortez-Romero César , Vázquez-Rocha Lizeth , Quintero-Elisea Juan A.
Published: January 2024

Objective: To evaluate the reproductive and productive behavior of four hair sheep breeds in an intensive production system.

Design/Methodology/Approach: Data recorded over 4 years (2016-2019) from a production unit that works with Blackbelly, Pelibuey, Dorper, and Katahdin breeds were analyzed. The following variables were evaluated: fertility, prolificacy, birth weight (BW), weaning weight (WW), weaned lamb yield (WLY), daily weight gain during lactation (DWGL), offspring born alive (OBA), male offspring (MO), and female offspring (FO). All information was analyzed using Chi-square tests and analysis of variance.

Results: The fertility, BW, WW, and WYL variables recorded different values between breeds (P<0.05). The greatest fertility and prolificacy were recorded by Blackbelly, while Dorper recorded the lowest values (P<0.05). BW and WW were highest in Dorper and lowest in Blackbelly (P<0.05). Finally, the sheep that recorded the highest WYL were the Blackbelly, while the Dorper registered the lowest values (P<0.05). BW and DWGL values reached maximum values (P<0.05) in Dorper rams, followed by Katahdin. The greatest number of OBA was observed in Blackbelly and Pelibuey (P<0.05).

Study Limitations/Implications: Further studies should be carried out to validate this research.

Findings/Conclusions: Blackbelly ewes produced more kilograms of weaned lambs per lambing ewe. The Dorper and Katahdin rams in the pre-weaning period recorded higher weight at weaning.
Chemical treatments in maize seeds to improve germination in acidic soils
Authors: Antonio-Medina Anadelia , Gaytán-Alemán Leticia Romana , Morales-Rivera Aurelio , Mendoza-Pedroza Sergio Iban , López-Salazar Rubén , Carrillo-Moreno Dalia Iveth , Ortega-Jiménez Eusebio
Published: January 2024

Objective: To evaluate the effect of different germination promoters on three maize genotypes grown in Dystric Cambisol soils, since germination problems are linked to latency and restrict agronomic management.

Design/Methodology/Approach: We conducted an experiment at the Instituto Tecnológico Superior de Juan Rodríguez Clara using a split-plot design with a factorial treatment arrangement. The large plot contained genotypes (GEN) G1 = MS-405, G2 = Arlequin, and G3 = MS-404; while the small one comprised promoter (PROMO) HS = humic substance, CI = citrulline, and SA = salicylic acid. We evaluated the following variables: germination speed (GS), emergence percentage (EMERG), stem and leaf volume (S&LV), root volume (RV), chlorophyll (CHL), secondary roots (SECR), stem diameter (DMT), number of leaves (NL), foliar area (FA), root length (RL), and plant height (PH). Then, we conducted a variance analysis and Tukey’s tests (α£0.05).

Results: For each promoter, we observed main effects in EMERG, CHL, and PH for CI; S&LV, NL, FA, and PH for HS; and RL for SA. In genotypes G2 and G3, variables GS, EMERG, NL, and PH were statistically equivalent, DMT varied only in G2, and there were no statistical differences for S&LV, RV, CHL, SECR, FA, and RL. We observed some simple effects in combinations with CI: GS and PH varied in G3, EMERG in G2 and G3, CHL in G1 and G3, DMT in G1 and G2, and S&LV in G2.

Study limitations/Implications: Soaking corn for one hour in the solution and weighing the correct amount properly are required, since weighing too much may inhibit germination.

Findings/Conclusions: Promoter CI at a dose of 1,000 ppm accelerates the emergence speed of genotypes G2 and G3 in acidic soils.
Carcass yield and primal cuts of lambs fed on different diets in the humid tropics
Authors: Sánchez-Hernández Miguel A. , Morales-Terán Gladis , Fraire-Cordero Silvia , Mendoza-Pedroza Sergio I.
Published: January 2024

In the humid tropics of Mexico, sheep production is an important economic activity, mainly focused on the sale of barbacoa and barbacoa tacos; however, no primal cuts of lambs are offered.

Objective: To assess carcass yield and primal cuts of lambs fed on different diets in Loma Bonita, Oaxaca, Mexico.

Design/Methodology/Approach: Five diets were assessed to measure carcass yield and primal lamb cuts: corn stover, corn silage, Chinese hibiscus (locally known as tulipán), cracked corn, and grazing. A completely randomized experimental design was used. The following variables were measured: hot and cold carcass weight, hot and cold carcass yield, neck weight, leg weight, shoulder weight, loin weight, rib weight, rib eye area determination, and fat thickness.

Results: Lambs fed on cracked corn achieved a higher carcass yield (44.2%) than the other treatments (P≤0.05), a leg weight of 3.87 kg, and loins 2.57 kg heavier than the other treatments, in average (P≤0.05).

Study Limitations/Implications: It was difficult to obtain homogeneous groups of lambs in terms of age and weight.

Findings/Conclusions: Lambs fed on cracked corn recorded higher carcass yields and better leg and loin primal cuts than lambs fed on the other diets.
Harvest age of Urochloa hybrids regarding yield, chemical composition, and in vitro biogas production
Authors: López-Garrido Serafín J. , Flores-Morales Eliud , Galicia-Jiménez Mónica M. , Ávila-Serrano Narciso Y. , Camacho-Escobar Marco A.
Published: January 2024

Objective: To evaluate the chemical composition, fermentation, and in vitro biogas production of the Cayman and Cobra cultivars, at different cutting ages.

Design/Methodology/Approach: Dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), hemicellulose (HEM), and cellulose (CEL) were determined at 28, 35, 42, and 49 cutting days. In vitro dry matter degradation (IVDMD), pH, and concentration of volatile fatty acids (VFA) were determined during fermentation. The biogas volume was estimated at 6, 12, 24, 48, and 72 hours; the volume of methane (CH4) and carbon dioxide (CO2) in the Cobra and Cayman forages was determined at 72 hours. A completely randomized design was used for the experiment.

Results: There were no differences (P>0.05) in DM production during the different cutting ages. CP was higher (P<0.05) in both cultivars, at 28 and 35 days after the cutting. The NDF, ADF, HEM, and CEL percentages were different in both cultivars. IVDMD was higher (P<0.05) between day 28 and day 42. Finally, CH4 production was lower (P<0.05) at 28 and 35 days after the cutting.

Study Limitations/Implications: The chemical composition of pastures is influenced by climate and, therefore, further analysis must be carried out during different periods or seasons of the year.

Findings/Conclusions: The optimal cutting age of the Cobra and Cayman cultivars under drought conditions is between day 28 and day 35 of regrowth. During that period, they have the best chemical and fermentation characteristics.
Insecticide resistance level of Aedes aegypti L. (Diptera: Culicidae) in northern Mexico
Authors: López-Zerón Nelson E. , Wilson-García Claudia Y. , Alvarez-Vazquez Perpetuo , Rojas-García Rafael A.
Published: January 2024

Objective: To determine the response of the larvae of three Ae. aegypti populations from the Mexican North Pacific region to insecticides with different mode of action.

Design/Methodology/Approach: Three colonies were obtained placing ovitramps in peridomestic sites in Guadalajara (Jalisco), Culiacan (Sinaloa), and La Paz (Baja California Sur). Based on the methodology proposed by WHO, the bioassays were carried out with F1 larvae in the early fourth instar.

Results: The larvae from the three field colonies had high resistance to permethrin and low resistance to deltamethrin; however, they were susceptible to Spinosad and Bacillus thuringiensis var. Israelensis. The Culiacan strain showed a high resistance to the malathion and propoxur insecticides.

Study Limitations/Implications: The results provided valuable information about the response of these populations to insecticides, which are useful to establish resistance in the lab. Consequently, further studies should be carried out to complement the information obtained in these field tests.

Findings/Conclusions: The data indicated resistance levels to pyrethroid insecticides (mainly permethrin), as well as to organophosphates and carbamates.
Los metabolitos secundarios biosintetizados por las espinacas (Spinacea oleracea L.) y su cultivo in vitro: Una revisión
Authors:   Colegio de Postgraduados. Programa de Estrategias para el Desarrollo Agrícola Regional., Herrera Cabrera Braulio Edgar , Montiel Montoya Jorge ,   Instituto Politécnico Nacional Unidad Sinaloa. Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional., Basurto González Luz María , Carrillo del Rio Andrés , Vega Navarro Bryan Jesús , Barrales Cureño Hebert Jair ,   Instituto Tecnológico de Estudios Superiores de Zamora. Carrera en Ingeniería en Innovación Agrícola Sustentable.
Published: January 2024

Spinach belongs to the taxonomic family Amaranthaceae. It is an annual, fast-growing leafy vegetable considered to havehigh nutritional value. Its international production according to FAO estimates was 14 million tons, with China being thefirst producer (85%), followed by the United States (2.6%), Japan (2.2%) and Turkey (1.6%); while, in Mexico, in 2020 it was49,313 tons (+27.3% compared to 2019) obtained from 2,853 ha harvested (+16.6%), so the national average yield was 17.3ton/ha ( +9.2%). The main phytochemical constituents of spinach predominantly associated with the quality of spinach aretotal flavonoids, total phenolics and total carotenoids, due to their antioxidant activity (Bergquist, 2006). Its valuablemedicinal properties include anticancer, antimutagenic, anti-inflammatory, antiproliferative, anticancer, antibacterial,hepatoprotective, hypolipidemic, and suppressors of the Central Nervous System. The present work is a review on theorigin, medicinal properties, agronomic profile, profile of biosynthesized primary and secondary metabolites, in vitro cultureof Spinacea oleracea and data on the phytochemical composition of the secondary metabolites of spinach detected byanalytical techniques
The anatomy of crises in Sub- Saharan Africa economic underdevelopment: A literature review
Authors:   Thomas  Adewumi  University,  Department  of  Accounting  and  Finance,  Oko,  Kwara  State,  Nigeria., Oluwapelumi Olofinlade Samuel , Aina Ogunwole Cecelia Oluwakemi ,   University of Ibadan, School of Business, Oyo State, Nigeria, Ishola Aransiola James ,   Thomas Adewumi University, Department of Business Administration, Oko, Kwara State, Nigeria, Ayobami Olanrewaju Favour ,   Thomas Adewumi University, Department of Accounting and Finance, Oko, Kwara State, Nigeria, Salami Adedoyin Isaac ,   Kwara State Polytechnic, Department of Business Administration, Ilorin, Kwara State, Nigeria, Olawole Olofinlade Daniel ,   OPay Nigeria Limited, Abuja, Nigeria
Published: January 2024

Political upheaval, economic crisis, corruption and food insecurity are the bane for economic underdevelopment in sub–Saharan Africa; these have caused many lives to face some difficulties and to witness unpalatable experiences. This paper looked into this issue and brought out some factors that likely aggravate the difficulties, crises and insecurity in sub–Saharan Africa especially. A few internal factors that contribute to food insecurity include poor leadership, conflict and subconscious of political administration. It is believed that outside factors contributed in a subtle, occasionally overt manner to the solution of the issue. This paper explained how political crisis, economic crisis, insecurity and food insecurity as a bane of economic underdevelopment of the sub-Saharan African country. The political crisis ranges from an underdeveloped political system, frequent changes in government, political instability, frequent change in government policies, abandonment of economic programs, and banditry and pirate activities at sea. Economic crises such as inflation, debt servicing, bogus foreign exchange regime, infrastructural decay, wrong economic policies are part of the bane of underdevelopment in sub-Saharan Africa. While on Food insecurity, drought, pest and diseases, pandemic outbreak (COVID19), Ukraine crisis/war, storage inadequacy, and seasonality of produce was part of the predicament that hinders development in sub-Saharan Africa. Also, suggestions were made to improve both the political and economic issues regarding food security and the development of sub-Saharan Africa.
Report on the Jalisco Section of the Santiago River Basin. Using the Institutional Compass
Authors:   Department of Philosophy, George Washington University, Washington D.C. USA, Friend Michèle , Carney Gretel ,   George Washington University, Washington D.C. USA, Derke Ella ,   George Washington University, Washington D.C. USA, Dulude Morgan ,   George Washington University, Washington D.C. USA, Jiang Nan ,   George Washington University, Washington D.C. USA, Shaw Amelia ,   George Washington University, Washington D.C. USA, Steen Jacquelyn ,   George Washington University, Washington D.C. USA
Published: January 2024

We report on aspects of a joint project between the University of Guadalajara and George Washington University to better understand and assess how to target problems in the state of Jalisco. We recount the experience students had through the work they did to assess the situation using an institutional compass
Language Policy in Teaching STEM in Morocco: Teachers’ Perspective of Using French in Moroccan STEM classes
Authors: Abdelhamid Nfissi , Soukaina Laayadi , Elmzandi Jaouhara , Iskandi Iskandi
Published: January 2024

This chapter is an exploratory study of the effect of changing language policy on students and teachers in studying/teaching STEM (Science, Technology, Engineering, and Mathematics) in Arabic language to French. It examines the challenges they both face in the use of a foreign language in academic, personal, and social levels, taking into considerations various factors of gender, education, and social status. This investigation goes beyond the political struggles and ideologies to shed light on those directly affected by these changes; students and teachers. The program started in 2014-2015; almost a decade has passed since its launch, providing teachers with more than enough time to accumulate insight into the failure or success of this language policy as well as the real challenges facing its implementation.
Pengaruh Pola Asuh Orang Tua Terhadap Tumbuh Kembang Kognitif dan Emosional Anak
Authors: Yasmin Adila Ghazani , Zada Amjad Raehan , Fadila Nuril , Rohmah Salma , Ahmad Ahmad
Published: January 2024

Di masa ini banyak orang tua yang sudah memahami akan pentingnya sebuah pendidikan bagi seorang anak, akan tetapi sebagian diantara mereka juga banyak yang tidak menyadari bahwasanya pendidikan pertama yang didapat oleh seorang anak adalah pendidikan dari keluarga terlebih oleh orang tua. Beberapa orang tua mungkin menerapkan pola asuh yang salah kepada anaknya sehingga anak tersebut memiliki masalah yang signifikan dalam tumbuh kembangnya. Tumbuh kembang pada anak menjadi tahap perkembangan yang paling penting dalam kehidupan mereka, hal ini dikarenakan tahap tumbuh kembang anak akan banyak memberikan pengaruh pada seluruh aspek kehidupan anak mulai dari fisik, emosional, social hingga pada kognotif anak. Maka dari itu adanya penelitian ini bertujuan untuk mengkaji pengaruh pola asuh orang tua terhadap tumbuh kembang anak. Metode penelitian menggunakan pendekatan kualitatif berbasis deskriptif dengan fokus pada analisis literatur relevan. Penelitian ini berdasar pada analisis literatur yang sudah ada sehingga tidak melibatkan manusia sebagai partisipan. Hasil penelitian yang kami dapatkan menunjukkan bahwa jenis pola asuh orang tua sangat berdampak signifikan terhadap tumbuh kembang seorang anak. Pola asuh yang baik ialah pola asuh yang mampu memberikan dampak positif bagi tumbuh kembang anak baik secara fisik maupun emosional, serta mampu menunjang keterampilan bersosialisasi anak. Hasil penelitian ini dapat menjadi landasan bagi orang tua dalam meningkatkan pemahaman terkait pola asuh yang seimbang serta membantu orang tua untuk memilih pola asuh yang baik bagi anaknya.
Analisis Bibliometrik: Tren Realistic Mathematics Education dalam Pembelajaran Matematika di Indonesia (2012-2023)
Authors: Fitriyah Yuni , Dasari Dadan
Published: January 2024

Penelitian ini bertujuan mengevaluasi pekembangan penelitian terkait Realistic mathematics Education (RME) dalam pembelajaran matematika selama periode tahun 2012 – 2023. Metode yang digunakan dalam penelitian ini adalah analisis bibliometrik. Sumber data diambil dari database Dimensions dengan kata kunci ‘Realistic Mathematics Education’ dan ‘pembelajaran matematika’. Sebanyak 358 dokumen yang terkumpul lalu disimpan dalam format RIS untuk dilengkapi dalam aplikasi Medeley. Data yang sudah dilengkapi keywords dan jurnal yang menerbitkan selanjutnya disimpan kembali dalam format RIS untuk selanjutnya dianalisis menggunakan apilkasi VOSviewer guna mendapatkan network visualization dan overlay visualization. Analisis mencatat bahwa perkembangan publikasi penelitian terkait RME dalam pembelajaran matematika di Indonesia cendrung meningkat, dengan publikasi terbanyak di tahun 2022 yaitu 75 dokumen. Jurnal yang paling banyak mempulikasikan terkait penelitian ini adalah jurnal AKSIOMA dengan total publikasi sebanyak 20 dokumen. Artikel yang ditulis oleh Seri Ningsih tahun 2014 dengan judul 'Realistic Mathematics Education: Model Alternatif Pembelajaran Matematika Sekolah' merupakan artikel dengan jumalh sitasi terbanyak yaitu 43 sitasi. Namun peneliti yang paling berpengaruh dengan mempublikasikan 4 artikel dan berkolaborasi dengan 11 penulis lainnya. Dalam analisis ini diperoleh bahwa peneliti di Indonesia memfokuskan kemampuan matematika dalam penelitian terkait RME. Analisis ini mendapatkan bahwa penggunaan etnomatematika bersama RME dalam pemeblajaran matematika masih relatif rendah dan baru, menggindikasikan potensi untuk penelitian lebih lanjut dan pengembangan yang lebih luas dalam bidang ini. Temuan ini memberikan wawasan penting untuk pengembangan lebih lanjut dalam konteks pendidikan matematika di Indonesia.
Penerapan Metode Pembelajaran Problem Solving Dalam Meningkatkan Hasil Belajar IPS Siswa SDN Karangwuluh
Authors: Zulfikar Muhammad , Hanwita Aulia Anggit , Wiguna Aji Candra , Winantyo Hastu Ikhsan , Zulfiati Heri Maria
Published: January 2024

Permasalahan dalam penelitian ini adalah rendahnya hasil belajar IPS siswa kelas V SD Negeri Karangwuluh Temon Kulon Progo. Masalah tersebut dapat dirumuskan sebagai berikut “Bagaimanakah penerapan Metode pembelajaran Problem Solving dalam Meningkatkan Hasil Belajar IPS Siswa Kelas V SD Negeri Karangwuluh Temon Kulon Progo? Tujuan penelitian adalah unuk mendiskripsikan penerapan penerapan Metode pembelajaran Problem Solving dalam Meningkatkan Hasil Belajar IPS Siswa Kelas V SD Negeri Karangwuluh Temon Kulon Progo. Fokus dalam Penelitian Tindakan Kelas ini adalah Penerapan Metode pembelajaran Problem Solving dan Hasil Belajar IPS. Subjek penelitian adalah siswa kelas V SD Negeri Karangwuluh Temon Kulon Progo, Teknik pengumpulan data dalam penelitian ini adalah Observasi dan Tes. Teknik Analisis  data adalah Reduksi data, Penyajian data,  Penarikan kesimpulan. Hasil penelitian bahwa penerapan metode pembelajaran Problem Solving dapat meningkatkan hasil belajar IPS siswa kelas V SD Negeri Karangwuluh Temon Kulon Progo.
Mindset Kurikulum Merdeka
Authors: Idris Syarifuddin
Published: January 2024

Penelitian ini merupakan penelitian studi literatur tentang mindset Kurikulum Merdeka. Metode yang digunakan dalam penelitian ini adalah metode deskriptif kualitatif, dimana penelitian deskriptif dalam hal ini merupakan penelitian yang bertujuan untuk menggambarkan kebijakan merdeka belajar sebagai upaya meningkatkan mutu pendidikan. Sedangkan sumber yang diambil yaitu dari dokumen naskah akademik merdeka belajar, pedoman-panduan merdeka belajar, peraturan Menteri tentang pengembangan kurikulum, buku saku platform Merdeka Belajar dan kajian buk-buku ilmiah yang sudah diterbitkan dengan maksud untuk dijadikan sebagai bahan referensi. Hasil dari penelitian menunjukkan, terjait dengan kebijakan Merdeka Belajar bertujuan untuk meningkatkan performa mutu Pendidikan melalui proses pembelajaran, kreativitas dan komitmen guru. Hasil ini berkontribusi dalam memberikan informasi yang komprehensif terkait Kurikulum Merdeka di Indonesia, sehingga nantinya dapat menjadi rekomendasi dan ide dalam implementasi Kurikulum Merdeka selanjutnya.
Exploring Grammar Learning Needs and Challenges: Insights from an Online Discussion Forum
Authors: Kifli Barli , Nasution Nazlah Syahaf
Published: January 2024

This research article explores the grammar learning needs and challenges faced by English language learners through an analysis of questions collected from the online discussion forum. The forum, created by a group of researchers at Universitas Negeri Medan, serves as a platform for learners to seek guidance and support in their grammar learning journey. By conducting qualitative content analysis on 19 questions specifically related to grammar, common themes and patterns regarding grammar challenges were identified. The findings highlight areas of difficulty such as Subject-Verb Agreement, Direct and Indirect Speech, Punctuation (Hyphen usage), Relative Clauses, Understanding "Neither" and "Either", Verb Tenses,  Passive Voice, Direct Quotations vs. Paraphrasing in Academic Writing. Addressing these challenges through targeted explanations, examples, and recommendations can assist educators and language instructors in supporting learners in overcoming grammar difficulties and improving overall language proficiency. The insights derived from this study contribute to the development of effective instructional strategies tailored to learners' specific needs.
Eksistensi Policy Entrepreneurs dalam Perubahan Kebijakan Pendidikan di Indonesia
Authors: Aulia Mira
Published: January 2024

Reformasi demokrasi dan administrasi publik di Indonesia pada tahun 2001 membuka jalan bagi aktor non-partisan seperti policy entrepreneurs untuk dapat terlibat dalam proses pembuatan kebijakan. Policy entrepreneurs dapat digambarkan sebagai pendukung perubahan kebijakan yang dicirikan oleh individu atau organisasi yang termotivasi. Dengan menggunakan sumber daya dan pengaruhnya, mereka bertindak sebagai agen perubahan sepanjang siklus kebijakan dengan menghadirkan solusi kebijakan yang inovatif, membangun koalisi dukungan, dan mengamankan tindakan legislatif. Korelasi antara policy entrepreneurs dengan perubahan kebijakan ditunjukkan melalui pendekatan teoritis multiple streams, koalisi advokasi, inkrementalisme dan punctuated equilibrium, serta neo-institusionalisme. Kebutuhan yang besar akan aktor intelligence seperti policy entrepreneurs yang mampu melangkah maju dan mengkatalisasi proses perubahan kebijakan di Indonesia menjadi alasan penulis membuat artikel ini. penulis menghimpun data serta melakukan tinjauan dari berbagai literatur yang sudah ada sebelumnya dan berusaha untuk menyajikannya secara komprehensif, sehingga diharapkan artikel ini akan mempermudah pembaca dalam memahami posisi maupun peran policy entrepreneurs dalam formulasi kebijakan. Terakhir, pada dua penelitian sebelumnya mengenai policy entrepreneurs di Indonesia yang ditinjau pada artikel ini ditemukan bahwa policy entrepreneurs di Indonesia dapat hadir melalui organisasi think tanks.
Problematika Pembelajaran Menulis Cerpen di SMPN 5 Kota Serang
Authors: Muldawati Muldawati , Muhyidin Asep
Published: January 2024

Ditemukan problematika yang melatarbelakangi penelitian ini dari siswa karena dalam menulis cerpen kurang pengetahuan yang memadai, imajinasi yang kreatif, penguasaan diksi, penyelarasan penggunaan bahasa yang tepat, bahkan harus memahami karakteristik pembaca agar memudahkan pembaca masuk dalam cerita penulis. Hal lainnya seperti guru yang kurang menguasai model, metode, media, strategi hingga kompetensi guru dan mengajar yang kurang, ada pula seperti fasilitas yang kurang memadai dalam menunjang proses pembelajaran menulis cerpen seperti teknologi media pembelajaran, sumber literatur, dan peluang mengembangkan keterampilan menulis sastra. Tujuan penelitian yaitu mendeskripsikan fasilitas pembelajaran di sekolah, pelaksanaan pembelajaran, kompetensi guru, kompetensi guru mengajar, kompetensi siswa, dan motivasi belajar siswa. Menulis cerpen membutuhkan pemahaman materi, kreativitas, imajinasi, penguasaan diksi, penyusunan bahasa tulis yang digunakan, sampai pada tahap adanya nilai estetika dan moral yang harus termuat di dalam teks cerpen. Hal tersebut yang menjadikan kesulitan bagi siswa untuk menulis cerpen dengan baik dan benar. Adapun metode penelitian yang digunakan yaitu kualitatif bentuk deskriptif, teknik pengumpulan data berupa observasi, wawancara, kuesioner, dan dokumentasi. Selanjutnya, langkah menganalisis data yaitu reduksi data, tahap penyajian data, dan tahap penarikan kesimpulan. Ditemukan hasil fasilitas pembelajaran di sekolah yang rendah pada perangkat pembelajaran (35%), pelaksanaan pembelajaran kesiapannya hanya 50% untuk model, metode, media, kompetensi guru hanya cukup kompeten untuk profesional (50%), kompetensi guru mengajar dari perspektif siswa kurang kompeten untuk perangkat pembelajaran (50%), kompetensi siswa kurang kompeten pada elemen menulis (41%), dan motivasi belajar yang dibutuhkan siswa dengan hasil sangat setuju bila adanya harapan dan cita-cita siswa dari proses pembelajaran yang guru berikan (78%).
Manajemen Hubungan Masyarakat Dalam Meningkatkan Partisipasi Wali Murid di SMP Negeri 27 Kerinci
Authors: Jafar Hasimi , Hakim Lukman , Putra Darma
Published: January 2024

Penelitian ini bertujuan untuk mendeskripsikan dan menganalisis manajemen humas dalam meningkatkan partisipasi wali murid di Sekolah Menengah Pertama Negeri 27 Kerinci. Penelitian ini menggunakan metode kualitatif jenis deskriptif, Teknik pengumpulan data dalam penelitian ini yaitu observasi, wawancara, dan dokumentasi. Analisis data dalam penelitian ini yaitu data reduction (reduksi data), data display (penyajian data), dan conclusion drawing/verification (penarikan kesimpulan). Hasil penelitian menjelaskan bahwa Sekolah Menengah Pertama Negeri 27 Kerinci sudah menjalankan manajemen humas, diawali dengan perencanaan program humas, pelaksanaan program humas dan evaluasi program humas. Namun manajemen humas yang sudah dilaksanakan belum memperoleh hasil yang maksimal, disebabkan berbagai unsur salah satunya pelaksanaan program humas tidak optimal seperti kegiatan rapat antara sekolah dengan wali murid hanya dihadiri oleh beberapa wali murid, Sekolah Menengah Pertama Negeri 27 Kerinci kekurangan tenaga ahli yang bisa mengoperasikan teknologi internet untuk mengelola websit sekolah sehingga informasi dan publikasi terbaru keadaan sekolah susah untuk diketahui oleh wali murid. Dapat disimpulkan bahwa Sekolah Menengah Pertama Negeri 27 Kerinci sudah menjalankan manajemen humas tetapi belum maksimal