bluuebunny/crossref_metadata_2025 huggingface dataset:
Esterification of Carboxylic Acids utilizing Eosin Y as a Photoacid Catalyst
Authors: Tripathi Jaya , Gupta Harshita , Sharma Anuj
Published: May 2024

Esters represent a vital functional group in organic chemistry and are prominently featured in valuable molecules. Traditional approaches for ester synthesis from acids typically entail the use of strong acids and toxic activating agents. Photoacid-catalyzed organic synthesis has recently come to the fore in several important transformations accruing the benefits of acid-based reactions under mild conditions. In this context, a green and sustainable method for esterification is proposed wherein, Eosin Y is introduced as a multifunctional photoacid catalyst that can be activated with visible light and catalyze the esterification of carboxylic acids. The present strategy is fairly broad and applies to the esterification of cinnamic acids, α-keto acids, and phenyl propiolic acids. The scope of carboxylic acids and alkyl alcohols includes several examples and therefore provides various carboxylic ester building blocks of pharmaceutical interest. Elaborated mechanistic studies revealed that proton-coupled electron transfer (PCET) between Eosin Y and carboxylic acid might facilitate the formation of a transient ketyl radical. This ketyl radical would subsequently undergo coupling with alkyl alcohols, yielding carboxylic esters in good to excellent yields.
Investigating the Properties of Fatty Acid-based Ionic Liquids: Advancement in AMOEBA Force Field
Authors: Heidari Sahar , Torabifard Hedieh
Published: May 2024

Developing the multipolar-polarizable AMOEBA force field for large molecules presents its own set of complexities. However, by segmenting the molecules into smaller fragments and ensuring that each fragment is transferable to other systems, the process of parameterizing large molecules such as fatty acids can be simplified without compromising accuracy. In this study, we present a fragment- based AMOEBA FF development for long-chain fatty acid ionic liquids (LCFA-ILs). AMOEBA enables us to incorporate polarization to measurably enhance the precision in modeling these large highly charged systems. This is of significant importance since the computational investigation of ILs needs accurate modeling. Additionally, to leverage the tunability of ILs, it is essential to test numerous anion and cation combinations to identify the most suitable formulation for each application. However, conducting such experiments can be resource-intensive and time-consuming, but accurate molecular modeling can expedite the exploration process. Here, the newly developed parameters were evaluated by comparing the decomposed intermolecular interaction energies for ion pairs with energies determined by quantum mechanics calculations as a reference. By employing this FF in molecular dynamics simulations, we predicted bulk and structural properties including density, enthalpy of vaporization, diffusion coefficient, and radial distribution function of diverse LCFA-ILs. Notably, the good agreement between the experimental data and those calculated using our parameters validates the accuracy of our methodology. Therefore, this new procedure provides an accurate approach to parameterizing large systems, paving the way for studying more complicated systems such as lipids, polymers, micelles and membrane proteins.
From poison to promotor –unique Rh4 structural motifs in supported rhodium sulphides as hydroformylation catalysts
Authors: Neyyathala Arjun , Fako Edvin , De Sandip , Gashnikova Daria , Maurer Florian , Grunwaldt Jan-Dierk , Schunk Stephan A. , Hanf Schirin
Published: May 2024

The hydroformylation of alkenes is a cornerstone transformation for the chemical industry, central for both functionalizing and extending the carbon backbone of an alkene. In our study, we explored silica-supported crystalline rhodium sulfide nanoparticles as heterogeneous catalysts in hydroformylation reactions, and found that RhxSy systems (x=17, y=15 or x=2, y=3 with 1 wt.% Rh on SiO2) greatly outperform metallic Rh nanoparticles. These systems proved to be exceptionally competitive when benchmarked against other cutting-edge catalysts in terms of activity, with Rh17S15/SiO2 being the superior catalyst candidate. By employing local environment descriptors, unsupervised machine learning and density functional theory, we have examined structure-performance relationships. Our results highlight that the presence of S in close proximity to the catalytic site unlocks the tunability of the surface catalytic properties. This allows for the substrate affinity to be modulated, in particular for Rh17S15, with adsorption energies rivaling those of pristine Rh and improved spatial resolution.
Cobalt(I) Pincer Complexes as Catalysts for CO2 Hydrogenation to Formate
Authors: Yao Wenzhi , Boudreaux Chance , Wysocki Megan , Ahmed Md Kausar , Qu Fengrui , Papish Elizabeth
Published: May 2024

Carbon dioxide hydrogenation with base to generate formate salts can provide a means of storing hydrogen in an energy dense solid. The stored hydrogen can later be released upon acidification of the formate salts or formic acid can be used directly in fuel cells. However, this application requires catalytic CO2 hydrogenation, which would ideally use an earth abundant metal as the catalyst. In this article, six new (CNC)CoIL2 pincer complexes were synthesized and fully characterized, including single crystal X-Ray diffraction analysis on four new complexes. These complexes contain an imidazole-based (1R) N-heterocyclic carbene (NHC) ring or a benzimidazole based NHC ring (2R) in the CNC pincer. The R group is para to N on the pyridine ring and been varied from electron withdrawing (CF3) to donating (Me, OMe) substituents. The L type ligands have included CO and phosphine ligands (in PPh32 and PMe32). Thus, two known Co complexes (1, 1OMe) and six new complexes (1Me, 1CF3, 2, 2OMe, PPh32, PMe32) were studied for the CO2 hydrogenation reaction. In general, the unsubstituted CNC pincer complexes bearing two carbonyl ligands led to the highest activity. The best catalyst, 2, remains active for over 16 h and produces a turnover number of 39,800 with 20 bars of 1:1 CO2 / H2 mixture at 60 °C.
Chemically Reversible Translational Moiré Superlattice Formations in the 2D Films of Zinc-Phthalate Complex
Authors: Hajra Archismita , Chattopadhyay Arun
Published: May 2024

Two-dimensional (2D) moiré materials formed due to angular or translational mismatch between the consecutive lattices are emerging as extraordinary quantum materials, owing to their intrinsic physical properties that are different from ordinary 2D crystals. The control over precision in moiré periodicity is a current challenge for the evolving field. While physical methods offer great precision in positioning atomic 2D crystals such as graphene and hexagonal boron nitride, chemical methods of generating such structures in the liquid medium – especially involving molecules – need to be developed. Herein, we report the reaction mediated synthesis of translational moiré superlattices of zinc phthalate complexes in the aqueous medium with considerably precise moiré periodicity. Collective translation of the covalent framework of the zinc phthalate complex, and additional zinc ions stabilized between the inter-layer aromatic rings through metal-pi interaction led to the moiré superlattice formations. Further, facile interaction of the pi-bonded zinc ions with an externally added chelating ligand 8-hydroxy-5-sulfonic acid, resulted in the disappearance of the moiré patterns. Again, the addition of zinc ions to the reaction mixture followed by storing the reaction mixture for 24 h led to the regeneration of the moiré patterns indicating the reversibility of the process.
Potencial probiótico de Lactococcus lactis GU967439 aislado de leche cruda: estudios in vitro
Authors: Moreira Camila , Carro Silvana
Published: May 2024

Las cepas probióticas nativas son elegidas para la producción de productos lácteos funcionales debido a que presentan ventajas tecnológicas. La selección preliminar se basa en ensayos in vitro que predicen su seguridad y propiedades funcionales. El objetivo del presente estudio fue evaluar in vitro la sensibilidad a antibióticos, el pasaje por el tracto gastrointestinal y la actividad antimicrobiana de la cepa nativa Lactococcus lactis GU967439, aislada de leche cruda proveniente de una quesería artesanal de Colonia, Uruguay. Se utilizó a L. lactis ATCC N° 11454 como referencia. L. lactis GU967439 fue sensible a todos los antibióticos activos frente a Gram positivos. Además, fue resistente a la simulación del jugo gástrico a pH 3, pancreatina y bilis. El sobrenadante libre de células de L. lactis GU967439 inhibió el crecimiento de Staphylococcus aureus ATCC 6538, Staphylococcus aureus ATCC 29213, Enterococcus faecalis ATCC 29212, Listeria innocua ATCC 33090, Streptococcus bovis 2.5 (WT) y presentó mejor actividad que la cepa L. lactis ATCC N° 11454. Sin embargo, ninguna de las cepas inhibió a los microorganismos Gram negativos evaluados (Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 9027). Estos resultados dan base a futuros trabajos que permitan continuar caracterizando el potencial probiótico de L. lactis GU967439.
Navigating the Digital Landscape: Challenges, Best Practices and Innovative Solutions in Online Math Braille Learning
Authors: Khan Sarfraz Ahmad , Bilal Nasira , Bukhari Sidra , Khalid Saif Ullah
Published: May 2024

Purpose: Math Braille is a difficult subject to teach online to students with visual impairment. Students with visual impairment are also supposed to have mastery of math braille to accomplish their academic goals.
Design/Methodology/Approach: This study was based on a qualitative approach. This study's population consisted of all braille math teachers from the school level in Lahore. Data from 15 respondents including braille math teachers (N= 15) of different grades were taken as a sample by using the purposive sampling technique. The instrument of this study was an interview protocol for teachers. The data was collected through interviews. Qualitative data were analyzed through coding & thematic analysis.
Findings: The findings of the study revealed that there are many visually impaired students who have difficulty in applying braille math rules. It was also found that teachers experienced many problems while teaching braille math to students with visual impairments through online mode. Additionally, an assistive device should be used, and the availability at the school level should be ensured & challenges and innovations for instructing braille math in online mode were also part of the findings.
Implications/Originality/Value: So it is concluded that teacher training and conceptual learning of braille math for students with visual impairment in online educational setting that must be provided for better teaching & learning process.
СИНТЕЗ И ИССЛЕДОВАНИЕ ЗАМЕЩЕННОГО МАРГАНЦЕМ ГЕКСАФЕРРИТА БАРИЯ BaFe12-xMnxO19
Authors: Гафарова К.П. , Живулин В.Е. , Гудкова С.А. , Вяткин Г.П. , Песин Л.А. , Шерстюк Д.П. , Винник Д.А.
Published: May 2024

Статья посвящена исследованию замещенного марганцем гексаферрита бария BaFe12-xMnxO19 со степенью замещения x от 0 до 2. Образцы были получены методом твердофазного синтеза при температуре 1275 °C и изотермической выдержке 5 часов. Был установлен элементный состав образцов с применением метода энергодисперсионной спектроскопии (ЭДС), который показал хорошую сходимость с заданными расчетными составами. Монофазность всех полученных образцов была подтверждена с помощью порошковый дифракции. Также было установлено влияние замещения марганцем на параметры решетки. В части исследования свойств с применением метода дифференциальной сканирующей калориметрии (ДСК) были установлено влияние замещения железа марганцем на значения температуры Кюри полученных образцов, что связано с изменением магнитной структуры созданных материалов. Полученные результаты свидетельствуют о существенном влиянии замещения марганца на свойства гексаферрита бария, подтверждая возможность управления процессом замещения для получения материалов с настраиваемыми магнитными характеристиками.
New Services in the Libraries Activities in Australia and New Zealand
Authors: Polishchuk Tetiana , Shevchuk Oleksandr
Published: May 2024

Studying the world experience in libraries activities gives Ukrainian institutions the opportunity to use the best, tested and promising ideas for working with their users. In this study, the authors pay attention to the project activities and interaction with readers in Australian and New Zealand libraries through new services. The article examines providing project activities and new services for the users of public libraries in Australia and New Zealand. The tasks were solved by using general scientific research methods. The analysis of sources was carried out to determine the main concepts of the topic; content analysis of websites and social networks of selected institutions; historical and comparative method of formation of public libraries in Australia and New Zealand. Considering the analysis of foreign experience, the approaches to socio-cultural transformations of public libraries in Australia and New Zealand are investigated. In the future, the main research findings can be implemented in the activities of Ukrainian book repositories and help in established cooperation with the public libraries of these countries. The main provisions, materials and research results can be used in the interaction of public book repositories with libraries in Australia and New Zealand. Comparing the activities of libraries in these countries, we can come to the conclusion that although Australian and New Zealand libraries have a much larger amount of material resources, the areas of activity are generally similar. Special attention is paid to the education and leisure of users, and famous people are also involved for this. Ukrainian public libraries can implement similar projects in their work and use new services to interact with their users and communities.
Advertising and PR in the State Sphere: Methodological Aspects of Teaching
Authors: Morozova Olena
Published: May 2024

The article deals with forming professional competencies among students who master the discipline of PR in public administration: understanding the specifics of communication with target audiences, the functions of public authorities, and forming a positive image of public administration through coverage of their activities. The main problems of teaching PR in public administration in higher education, related to the differences between the functioning of the public and commercial sectors, are presented.
The Heart Does Not Itch, But it Feels Pain: Three Cases of Kounis Syndrome
Authors: Yılmaz Ömer Faruk , Dural İbrahim Etem
Published: May 2024

Background: Kounis syndrome is defined as the occurrence of acute coronary artery syndrome as a
result of activation of inflammatory cells after conditions such as allergy, hypersensitivity, anaphylaxis
or anaphylactic reactions. This case reports were presented to provide the latest knowledge on Kounis
syndrome, increase awareness of this disease among healthcare providers and researchers, and
promote early and appropriate diagnosis and management of this syndrome.
Summary of Cases: In the first case, a 45-year-old female patient with no history of coronary artery
disease developed anaphylaxis due to a locally applied anesthetic drug. This led to transient coronary
artery vasospasm and acute coronary syndrome. In the second case, a 70-year-old male patient with a
history of coronary artery disease developed anaphylaxis due to a bee sting. This caused rupture of the
coronary artery plaque, resulting in inferior myocardial infarction. In the third case, a 73-year-old male
patient with a stent in his coronary artery developed an allergic reaction/anaphylaxis to midazolam,
which was administered for sedation before the biopsy procedure. This reaction resulted in restenosis
of the old stent and caused an anterior myocardial infarction.
Conclusion: Kounis syndrome is a life-threatening condition that requires attention. Ensuring coronary
artery patency in the treatment of ischaemia is important to protect cardiomyocyte health and prevent
arrhythmias. Ischaemia caused by allergens can be resolved with a combination of antiallergenic
treatments. Therefore, for effective management of suspected cases of Kounis syndrome, collaboration
between cardiology and allergy-immunology clinics is essential.
Papillary Carcinoma Developing from a Thyroglossal Duct Cyst: A Case Report
Authors: Say Mehmet Ali , Açar Sami
Published: May 2024

Background: Thyroglossal duct cyst is the most common midline congenital anomaly of the neck.
Papillary carcinoma in the thyroglossal duct cyst and papillary carcinoma in the thyroid tissue can be
seen together. In this article, we present a case of papillary carcinoma of the thyroglossal ductus cyst in
a 43-year-old male patient. In the postoperative second year ultrasonography, our patient had multiple
reactive lymph nodes in the submandibular region due to tooth infection and about 4x3 mm cystic
nodule was detected in the thyroid left lobe. Total thyroidectomy was recommended to the patient when
our patient wanted to exit long -term follow -up. In our case, although the focus of papillary carcinoma
is less than 1 cm and the capsule is intact in the thyroglossal cyst material, the focus of 4 mm papillary
carcinoma was found in the total thyroidectomy material. Even if the focus of papillary carcinoma in
the thyroglossal cyst is smaller than 1 cm and the capsule is intact, it should be kept in mind that there
may be a focus of papillary ca in the thyroid tissue and patients should not be excluded from follow-up.
Anevrizmatik Subaraknoid Kanamada Ultra-Erken ve Erken Tedavinin Etkileri: Tek Merkezli Retroprospektif Çalışma
Authors: Gel Mehmetselim , Keskin Emrah , Daltaban İskender Samet
Published: May 2024

Amaç: Anevrizmal subaraknoid kanamaların (aSAK) cerrahi tedavisinin zamanlaması konusundaki
fikir ayrılıkları günümüzde hâlen devam etmektedir. Bu tartışmaya hastalığa bağlı sınırlamaların sebep
olduğu aşikâr olup; konuya yönelik çok sayıda araştırma mevcuttur. Bu çalışmalar özellikle erken ve
ultra erken cerrahiyi desteklemekle beraber; sonuçlar bu iki zamanlama içindeki tedavi seçeneklerinden
hangisinin (endovasküler tedavi (EVT) veya cerrahi tedavi (CT)) üstün olduğu konusunda da
henüz net değildir.
Gereç ve Yöntemler: Bu çalışma, Trabzon Kanuni Eğitim Araştırma Hastanesi Beyin ve Sinir Cerrahisi
Kliniğinde Haziran 2021 ile Haziran 2022 tarihleri arasında, aSAK tanısı ile tedavi edilen 50 hasta
üzerinde retroprospektif olarak yapılmıştır. Hastalar çalışmamızda tedavi yöntemine bakılmaksızın
(EVT veya CT) kanamanın ilk altı saat içinde tedavi edilenler ultra erken tedavi (Grup 1) ve altı saat-yirmi
dört saat arasında tedavi edilenler erken tedavi (Grup 2) olmak üzere iki ayrı gruba ayrıldı.
Bulgular: aSAK tanısıyla EVT veya CT ile tedavi edilen 50 hastanın 31’i erkek (%62) ve 19’u kadın
(%38) idi. Grup 1, 14’ü EVT ve 12’si CT ile olmak üzere toplam 26 hastadan; Grup 2 ise 13’ü EVT ve
11’i CT ile olmak üzere toplam 24 hastadan oluşmaktadır. Grup 1 ve Grup 2’deki hastalara gerek EVT
gerekse CT ile tedavi uygulanması durumunda istatistiksel olarak tedavinin tipi ve zamanlaması açısından
birbirine üstünlüğü olmadığı görülmüştür (Sırasıyla p=0,678, p=0,680).
Sonuç: Bu çalışma, aSAK tanılı hastaların klinik derecesine bakılmaksızın hem erken hem de ultra
erken dönemde yapılan her iki müdahalenin (EVT veya CT) sonuçları açısından farklılık olmadığını
göstermemiştir.
MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS DALAM PEMECAHAN MASALAH MATEMATIKA: PERSPEKTIF FILSAFAT DAN ADVERSITY QUOTIENT
Authors: Siswanto Eko , Aziz Tian Abdul , El Hakim Lukman
Published: May 2024

This study aims to explain critical thinking skills in solving mathematics problems using a philosophical perspective, especially from Progressive Education Theory and Adversity Quotient. The research method used is a literature study by utilising primary data in the form of books, online journals, and seminars that discuss critical thinking skills, problem solving, John Dewey's Progressive Education Theory, and Adversity Quotient. The results of data analysis show that critical thinking skills have a central role in dealing with mathematical problems. John Dewey's Progressive Education Theory can be a guide for teachers in choosing learning models that encourage students' active involvement in the learning process in the classroom. Meanwhile, Adversity Quotient has a positive influence on critical thinking ability.
PENERAPAN PEMBELAJARAN INKUIRI DALAM MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS MATEMATIS SISWA SMK
Authors: Safitri Ajeng Dwiyani , Mustika Sari Rika Mulyati
Published: May 2024

The research aims to be able to find out the applications of inquiry learning using exponential material which can improve the mathematical critical thinking skills of vocational school level students in Bekasi Regency. This research approach uses descriptive methods of analysis in testing and observing the improvement of the ability to think critically mathematically of learners, test instruments are used in the form of questions on students' mathematical critical thinking skills on exponent material. The results showed a percentage score of 100% for six students classified as "very critical"; 80% percentage for six students who fall into the critical category; 60% percentage for six students who fall into the less critical category; and a 40% rate for four students who fall into the non-critical category. It can be concluded that the inquiry-based learning model used to improve students' critical thinking is successful.
ANALISIS KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA SMK PADA MATERI PELUANG DITINJAU DARI KEMAMPUAN AWAL MATEMATIS
Authors: Marselina Seli , Roesdiana Lessa
Published: May 2024

This study was conducted to analyze the problem-solving ability of grade XII students of SMKN 2 Karawang for the 2023/2024 Academic Year in terms of their initial mathematical abilities. This research uses a qualitatively descriptive approach. The subjects consisted of six students who were selected representatively to represent each level of initial mathematical ability.  Data was collected based on problem-solving ability tests and initial mathematical ability tests. The collected data were analyzed to evaluate students' problem-solving abilities in three categories: high, medium, and low math skills. Students who have high initial mathematical abilities manage to precisely meet all indicators at each stage of problem solving. Students with moderate initial mathematical ability still do not meet the indicators at all stages of mathematical problem solving. Students with low initial mathematical ability understand all indicators but do not apply them to every solution.
ANALISIS MOTIVASI BELAJAR SISWA DALAM PEMBELAJARAN MATEMATIKA BERBANTU MEDIA LIVEWORKSHEETS KELAS XI SMA
Authors: Hamidah Renita Wanda , Supandi Supandi , Wahyuningsih Yayuk Sri
Published: May 2024

The purpose of this study is to examine how motivated students are to learn mathematics when using interactive worksheets. The qualitative descriptions are used in this research method. Thirty-six students from SMA Negeri 2 Semarang's XI–5 class served as the research subjects. A learning motivation measure with thirty statements with both positive and negative responses is the tool employed. The study's findings demonstrate that, with the use of live worksheet media, students' learning motivation in the tangent to circles content exhibits positive results with an average percentage of 76.9% and is deemed strong. Every indicator on the learning motivation questionnaire—which was distributed to every respondent—was used to calculate this average.
ANALISIS KEMAMPUAN PEMAHAMAN KONSEP SISWA SMP PADA MATERI SISTEM PERSAMAAN LINEAR DUA VARIABEL (SPLDV)
Authors: Diaz Maria Esterlita , Marlina Rina
Published: May 2024

This research was conducted with the aim of observing and describing junior high school students' ability to understand concepts in two-variable linear equation systems. 36 students of class VIII SMP Negeri 3 West Karawang were the research subjects. This research uses a qualitative descriptive approach, and the data collected for this research comes from tests that measure students’s ability to understand concepts. The results showed that students in the low category, with 7 students, had a concept understanding ability of 19.4%. The medium category with 23 students, has a concept understanding ability of 63.9%. Meanwhile, in the high category with 6 students, students’ concept understanding ability was 16.7%. It can be said that the majority of students at SMP Negeri 3 West Karawang haave the ability to understand mathematical concepts in the medium category.
UJI VALIDITAS KONTEN INSTRUMEN KEMAMPUAN REPRESENTASI MATEMATIS DALAM MENYELESAIKAN MASALAH BANGUN DATAR
Authors: Zakiyah Zahra , Kartika Hendra
Published: May 2024

Planar material is one of the materials that will be found again in several subsequent materials. In plane material, students' mathematical representation abilities need to be considered so that students are able to solve problems well. The aim of this research is to analyze the level of validity and reliability of the test instrument for junior high school students' mathematical representation abilities in solving flat shape problems. The research method used is a quantitative descriptive method. By using the Aiken's V formula, the expert validation results obtained an average V value of 0.93, which means that the questions have a very high level of validity and can be used. Meanwhile, the results of the reliability calculation show that the r value is 0.94, which means that the question has a very strong correlation coefficient and can be used. So this instrument can be used by teachers to measure the level of students' mathematical representation abilities in solving flat shape problems.
Analysis of Intrapersonal Communication in Increasing Self-Confidence Among Generation Z
Authors: Husna Asmaul , Hasan Kamaruddin , Paisal Siregar M. , Sinta Putri , Doli Harahap Syahrial , Aulia Sani Zahra
Published: May 2024

The advancement of the times has greatly influenced the importance of intrapersonal communication in overcoming challenges and increasing self-confidence. In this digital era, the use of social media and pressure from the digital environment also play an important role in influencing self-confidence among generation Z. Self-confidence is very important in life because without self-confidence there will always be doubts in a person to do something. This research uses a library research method. The literature research method is research conducted using literature. The literature method plays an important role in formulating the theoretical basis and conceptual framework. In today's digital era, generation Z has been made easier by the existence of social media, with social media people are more active on social media than in the real world. In fact, even introverted people are very active on social media compared to extroverted people. Social media really helps the development of one's self-confidence and it is not uncommon for people to develop more on social media than in the real world. The results obtained to increase self-confidence in generation Z are by understanding oneself, increasing motivation and perseverance, self-talk, opening up, and talking to the closest people about their feelings and thoughts.
Ernest Harms’ın Dini Gelişim Teorisinin Tanrı Tasavvuru Kuramları Bağlamında İncelenmesi
Authors: Baynal Fatma
Published: May 2024

Bu araştırmanın konusu, Ernest Harms’ın dini gelişim teorisini Tanrı tasavvuru kuramları bağlamında ele almaktır. Bu doğrultuda araştırmada, dini gelişimde Tanrı tasavvurunun önemini Harms’ın çalışması çerçevesinde incelemek amaçlanmıştır. Çalışmada bilimsel araştırma yöntemlerinden doküman analizi yöntemi uygulanmıştır. Araştırmada Harms’ın hayatı, çalışmaları ve dine bakış açısı açıklanarak değerlendirmelerde bulunulmuştur. Araştırma sonucuna göre dini gelişim teorileri arasında yer alan Harms’ın teorisi Tanrı tasavvuru bağlamında çizim yöntemiyle ele alınan orijinal çalışmalar arasında yer almaktadır. Bununla birlikte Harms, pek çok alanda eser vermekle birlikte bu teoriyi ileri bir düzeyde ele almamıştır. Teorinin, çoğu dini gelişim teorileri gibi Piaget’în dini gelişim teorisi üzerine kurulu olması açısından sınırlı kaldığı söylenebilir. Tanrı tasavvuru ile ilgili araştırmaların ise Harms’ın çalışması da dâhil olmak üzere belirli din veya mezhebe mensup gruplar arasında yapıldığı; Türkiye’de kuramsal açıdan yeterli çalışma olmadığı görülmüştür. Bu nedenle Tanrı tasavvurunun dini ve kültürel açıdan değişkenlik arz etmesi göz önüne alınarak yeni kuramların geliştirilmesi alana katkı sağlayabilir.
Developing an Augmented Reality-Based Textbook on Heat and Transfer Materials to Improve Students Critical Thinking Skills
Authors: Hidayat Aprilia Lulita Nadya , Ahmad Nur , Ridlo Zainur Rasyid , Putra Pramudya Dwi Aristya , Yusmar Firdha
Published: May 2024

The Society 5.0 era necessitates that society address problems by harnessing information technology. Augmented Reality, one of the information technologies utilized in the education sector, presents virtual objects alongside real ones in a three-dimensional format, allowing for observation, interaction, and auditory engagement. Heat and transfer materials can be simulated and applied in the form of 3D objects and animations, facilitating direct student interaction and providing a captivating and distinctive learning experience. The objective of this research is to create an Augmented Reality-based textbook on heat and transfer material to enhance the critical thinking skills of junior high school students. This Research & Development used the ADDIE model including analyze, design, develop, implement and evaluate steps. Based on the results, augmented reality-based textbook is highly valid, practical, and effective in showcasing an improvement in the critical thinking skills of junior high school students, with the observed increase falling within the high category, specifically at 0.71
An Analysis of Direct Changes by MGNREGS on the livelihoods of Dalit Women Beneficiaries in Northern Districts of Tamil Nadu
Authors:   Horticultural Research Station , Pechiparai- 629 101, T Raj Pravin
Published: May 2024

The Mahatma Gandhi National Rural Employment Guarantee Scheme is one of the largest social security scheme implemented in the world to ensure food and livelihood security to the marginalized sections of our country. The main objective of this scheme is to provide employment for a minimum of 100 days in a year to every family member willing to do unskilled manual labor in rural areas. The direct changes brought out by MGNREGS on the livelihoods of dalit women beneficiaries was found to be medium in this study. With regard to componentwise direct changes, medium level on total number of man days in a year, two persons being employed in a family, more than seven hours of daily working hours, daily wage rate of Rs. 200-Rs.300, with a medium level of migration after their participation in MGNREGA was reported in this study. Our policy planners at the national and state level, district administrators at the regional level and extension professionals at all levels need to be involved in strengthening this welfare scheme to achieve it’s desired objectives.
O Mundo do Trabalho Líquido e a Realidade do Trabalhador: Desafios da Formação no Contexto da Precarização do Trabalho a partir da Docência
Authors: COSTA ANÍVEA ARAUJO
Published: May 2024

Propõe-se, neste artigo, refletir a realidade do trabalhador no contexto da modernidade líquida, materializada por configurações de trabalho flexível da indústria 4.0, desdobrado nos processos de precarização como terceirização e uberização. Discutem-se, também, os desafios no contexto docente inspirado nos princípios da formação omnilateral como indicativo para a formação do trabalhador, não para o mercado de trabalho, mas para o mundo do trabalho. As discussões alicerçam em autores como Ricardo Antunes (2000; 2009; 2013; 2020), Bauman (2007), Kuenzer (2016), Ramos (2014), dentre outros. Conclui-se chamando a atenção para a nova relação de trabalho imposto pela tecnologia diante da sua necessidade de um perfil de trabalhador flexibilizado e subserviente para atender tão somente às grandes corporações da indústria 4.0 nessa sociedade líquido-moderna.
La investigación educativa: Un faro que ilumina el camino hacia la transformación
Authors: Martínez Molina Oscar Antonio
Published: May 2024

Este documento profundiza en la importancia crucial de la investigación educativa en el panorama actual de la educación. Se presenta como un faro que ilumina el camino hacia una renovación profunda de los paradigmas de enseñanza y aprendizaje. Anclada en la rigurosidad científica, su finalidad es generar conocimientos que permitan comprender los retos y oportunidades del proceso educativo. Se destaca su papel como cimiento para proponer soluciones innovadoras y eficaces, destinadas a transformar la educación desde sus raíces, promoviendo un aprendizaje inclusivo, equitativo y adaptado a las necesidades de una sociedad globalizada y tecnológica. Se resalta su capacidad para iluminar prácticas pedagógicas que respondan no solo a demandas académicas tradicionales, sino también a habilidades indispensables para el futuro. Se fundamenta en autores como Kemmis, McTaggart y Nixon (2013); Stenhouse (2003); Hattie (2023); Gimeno (2011); y Pérez (2012), quienes resaltan sus beneficios en la mejora de la enseñanza, la toma de decisiones, la innovación y la profesionalización docente. Sin embargo, también se abordan desafíos como la insuficiente inversión, la falta de formación docente en investigación y las dificultades en la difusión de resultados. Se proponen recomendaciones multifacéticas para fortalecer la investigación educativa como catalizador esencial para la innovación y mejora continua en la educación.
Programa de formación continua para fortalecer la metodología de enseñanza de los docentes de matemática
Authors: Choez Pilay Jenny Guadalupe , Herrera Guanoquiza Yajaira Marianela , Echeverría Guzmán Ángel Yasmil , Guzmán Hernández Ramón
Published: May 2024

La tecnología está avanzando rápidamente, exigiendo a los educadores mantenerse al día. Ellos deberían ser los primeros en participar en el proceso de actualización para que sus métodos de enseñanza se alineen con los tiempos modernos y las nuevas formas de aprendizaje. Este es el objetivo de esta investigación, ya que se propone diseñar un programa de formación continua para fortalecer la metodología de enseñanza de los profesores de matemáticas, específicamente en el uso de la herramienta digital Moodle. El estudio se realizó mediante una metodología cuantitativa, con un diseño de campo y un nivel descriptivo. La población estuvo constituida por los docentes de la institución, utilizando una muestra de once profesores del departamento de matemáticas. Los datos se recopilaron a través de un cuestionario que contenía diecisiete ítems. Los principales resultados mostraron que los docentes no reciben formación continua en herramientas digitales y, por lo tanto, no saben cómo operar Moodle. Al aplicar la propuesta, se capacitó a los profesores de matemáticas para que su metodología en el aula se alinee con los avances tecnológicos.
Improvement of basic soccer techniques with training methods and physical condition
Authors: Zul Fadli Rambe Ahmad , Yanuar Kiram Phil , Arsil Arsil , Bahtra Ridho , Ockta Yovhandra
Published: May 2024

This study aims to investigate the effect of small-sided games and rondo training methods, as well as physical conditions, on the basic technique skills of passing, controlling, and dribbling soccer players. This research mode is a Quasi-Experiment with a factorial research design. The sample consisted of 38 child soccer athletes aged 10-12 years from the Wijaya men's soccer team, with purposive sampling from young soccer players (10-12 years) from the Wijaya men's soccer team in Padang. Skill measurements are performed with bounce board instruments for passing control, dribbling tests, agility tests (Illinois Agility Run Test), and speed tests (30-meter run) to measure physical condition. Data analysis using a two-track ANOVA test with a significance level of α 0.05. The results showed that there was a significant difference in the effect of the Small-Sided Games and Rondo methods on passing control (F = 5.931, p = 0.025 < 0.05) and dribbling (F = 61.588, p = 0.000 < 0.05) soccer players. In addition, there is a difference between high and low physical conditions for passing control and dribbling (α < 0.05). Furthermore, there was a significant interaction between training methods and physical condition on passing control (F = 9.481, p = 0.007 < 0.05) and dribbling (F = 88.817, p = 0.000 < 0.05). This study concluded that small-sided games, rondo training methods, and physical conditions have a significant effect on the basic skills of soccer players.
Improved passing accuracy by using pair practice in adolescent soccer players
Authors: Marsuna Marsuna , Rusli Muhammad , Saman Abdul
Published: May 2024

Passing is one of the fundamental techniques in football. Good passing skills enable players to participate in the game effectively and maintain possession of the ball. Paired short passing drills also help improve individual skills. This research aims to find out whether short passing training in pairs can increase the accuracy of soccer passing in adolescent soccer players. The quantitative method used in the research is a pre-experimental design through one group pretest and posttest. The research instrument used a ball passing accuracy test for 30 seconds and used the short passing practice method in pairs. The population in this study consisted of 20 male Rekminers Club soccer players aged 15-17 years. The sample was selected using a total sampling technique, and the entire population sampled was 20 players. The data analysis technique uses the t-test to test the hypothesis to increase soccer passing accuracy in the pretest and posttest treatment using SPSS version 26. Based on the results of hypothesis testing using the t-test in paired short passing exercises with football passing accuracy ability, there is a significant influence based on pretest and posttest data analysis of 0.000 < 0.05. This exercise was successfully carried out to improve the accuracy of football passing. The research results show that short passing training in pairs is an effective method for improving the passing accuracy of football players.
The effect of exercise variation methods on leg muscle strength and its contribution to improving volleyball smash results
Authors: Mahmuddin Mahmuddin , D. Sihombing R. Syaifullah , Yunis Bangun Sabaruddin , Josua Hamonangan Dian
Published: May 2024

This research is based on the contribution of leg muscle strength to the results of volleyball smashes. So, it is necessary to increase strength through a training program to produce good smash results. This study aimed to determine the effect of burpee exercise variations on increasing leg muscle strength and volleyball smash results. This research method is a quasi-experimental research design experiment with a pretest-posttest. The subjects involved in this study were male volleyball players of North Sumatra Club, with purposive sampling and subject collection techniques, the total subjects involved amounted to 10 players. The instrument used in this study is leg muscle strength using the vertical jump test, which is usually done to determine the strength of the leg muscles or an athlete's explosive power while measuring smashing skills for fast and targeted target attacks using Lavage's smash skill test instructions. Analysis of research data Analysis of data using statistical formulas to prove whether the hypothesis data that has been proposed is accepted or rejected by the Liliefors test. Based on the results of the calculations, the hypothesis is that vertical jump = 6.026> 1.859, so burpee training variations significantly influence leg muscle strength. Smash results, hypothesis obtained count smash results = 8.664 ttable> 1.859, So there is a significant influence of burpee training variations on the smash. This study concludes that burpee variation exercises can be an alternative to increase leg muscle strength and volleyball smash results.
The relationship between physical activity intensity, sleep quality and stress levels in adolescent physical fitness
Authors: Kasmadi Muchammad , Suhadi Suhadi
Published: May 2024

Physical activity, sleep quality, and stress levels on physical fitness in adolescence can increase the positive value of adolescent students' development in doing all activities. At the same time, previous research has shown that physical activity, stress levels and sleep quality strongly influence each of these activities in the context of positive influences. Because adolescent activity is so high, the study examined this relationship in everyday life. The design and method used in this study were correlational, with 200 adolescent students involved in this study who selected purposive sampling. Data collection techniques are questionnaires, among which IPAQ is a questionnaire with a physical activity measurement scale. Sleep quality using PSQI (Pittsburgh Sleep Quality Index). Stress rating scale using DASS (Depression Anxiety Stress Scales). Physical fitness is measured using the Indonesian Physical Fitness Test for 16-19 years. Data analysis using Spearman's rho correlation test using SPSS application version 26. This study found that in physical activity with adolescent physical fitness, Sig. 0.714 > 0.05 was obtained, which shows a significant relationship between physical activity and physical fitness. Sleep quality with physical fitness in adolescents obtained Sig. Value 0.826 > 0.05, so there is a significant relationship between sleep quality and physical fitness in adolescents. At the level of stress related to physical fitness, they obtained Sig. Values of 0.000 < 0.05 mean that no significant relationship exists between adolescents' stress levels and physical fitness.
Effects of indoor hockey intervention on motor proficiency and physical fitness in adolescents
Authors: Cahyono Tedi , Hernawan Hernawan , Vidya Hartono Fajar , Nugraha Hartman , Pasaribu Ahmad Muchlisin Natas
Published: May 2024

This study aimed to determine the intervention of hockey games in improving motor skills and physical fitness in adolescents. The research method used in this study was an experiment involving a control group. This research uses a pre-test-post-test randomized control group design, with a total sampling of 30 adolescents divided into 2 groups, namely the experimental group and the control group, each comprising 15 people. The determination of group division is divided randomly, and all subjects involved are used. Instruments used Children's Psychomotricity and Aptitude Scales (MSCA, USA). Physical fitness using physical fitness test instruments, which have been adjusted to the characteristics of the research subjects. The results showed that the intervention for 12 weeks in indoor hockey activity, intervention, and gross motor intervention showed a significance value of 0.034. Because the significance value < 0.05, Ho was rejected, compared to the results of participants in the study who were given an independent intervention program. The physical fitness data shows that the pre-test standard deviation is 1.30440 compared to the post-test 1.61211, this means that there is an increase in adolescent physical fitness. Thus, indoor hockey intervention has a significant influence on the physical fitness of adolescents. These findings prove that interventions in the form of physically engaging activities focusing on floor hockey sports may be a viable option for improving Motor Proficiency and Physical Fitness in Adolescents.
Physical training tennis serve performance on adolescent: A systematic review
Authors: Sahib Saleh Muhammad , Arif Saleh Hasbunallah , Nurkadri Nurkadri , Suharta Asep , Syahrul Saleh Muhammad
Published: May 2024

Physical training on improving court tennis service skills in adolescent athletes is one part of mastering skills for teenagers. However, not all exercises that have been done by teenagers can be successful in mastering tennis serve skills. The main objective of this study is to explain physical training to support service skills in tennis. This study follows the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) and Meta-analysis. Scientific articles are obtained from Elsevier, Pubmed, Science Direct, Web of Science, National Index, Google Scholar, and Journal of Sports Coaching. After following the exclusion criteria, only 8 articles remain. The review successfully showed that most research, and quantitative approaches are the methods and types of research used. One important aspect of physical training is support for service skills on the tennis court. The practice study program lasts 3 weeks to 12 weeks. They do one to > two days per week. Conclusion The findings suggest that physical exercise can increase the speed of tennis serves. Recommended physical exercises to improve tennis serve include Exercises, Core Legs, Stability, and Arms. Further research can be continued by mapping research analysis on this topic using other methods to explore various forms of exercises for mastering skills in sports. This literature review can also be continued by discussing other topics related to mastery of skills.
Green Sintesis Dan Karakterisasi Material Nanokomposit TiO2/CuO Menggunakan Ekstrak Daun Wedelia trilobata (L.)
Authors: Sarimanella Stefhanie B. , Titahena Apriliska , Latununuwe Altje , Huliselan Estevanus Kristian
Published: May 2024

TiO2/CuO nanocomposite has been successfully synthesized using Wedelia trilobata (L.) leaf extract with TiCl3 and Cu(NO3)2 3H2O as precursors. The material formed was then characterized by scanning electron microscopy (SEM) to determine the shape and size and then energy dispersive X-ray (EDX) characterization to determine the atomic composition contained in this nanocomposite material. The results of SEM and EDX show that the material is spherical in shape and has an average size of 42 nm. The composition of TiO2 is 73.38% and CuO is 4.32%. Furthermore, the sample is characterized by X-ray diffraction (XRD) in which the diffraction peaks are at angles of 2 theta, 25.646° and 47.511° indicating TiO2 nanoparticle.  Meanwhile, peaks are at 38.367° and 74.379° indicate CuO nanoparticle. Determination of the energy band gap of the material using the results of ultraviolet visible (UV-Vis) is 3.5 eV. Measurement of magnetic properties using VSM equipment. Based on the hysteresis curve, the TiO2/CuO nanocomposite material has diamagnetic properties and is a soft magnet material.