bluuebunny/crossref_metadata_2025 huggingface dataset:
THE IMPORTANCE OF USE OF EFFECTIVE SENTENCES FOR PHYSICAL STUDENTS OF UNIMED FMIPA
Authors: Halimatussakdiah Halimatussakdiah
Published: July 2023

Abstract : The Importance of Effective Use of Sentences for Physics Students of UNIMED FMIPA. This study aims to determine the importance of using effective sentences for students. The type of this research is descriptive qualitative with the subject of the study are 15 students of the 2014 class D physics class D education program. The technique of collecting data using test instruments amounted to 15 questions and analyzed with descriptive techniques. The results of this study state that the understanding of Physics students on the use of effective sentences is 40% on very good criteria, 33.33% criteria are good, 13.33% criteria are sufficient and less. The conclusion of this study is that students' understanding of efketif sentences is classified as moderate.Keywords : Effective SentencesAbstrak : Pentingnya Penggunaan Kalimat Efektif Bagi Mahasiswa Fisika FMIPA UNIMED. Penelitian ini bertujuan untuk mengetahui pentingnya penggunaan kalimat efektif bagi mahasiswa. Jenis penelitian ini adalah deskriptif kualitatif dengan subjek penelitian adalah 15 mahasiswa program studi pendidikan fisika kelas D stambuk 2014. Teknik pengumpulan data dengan menggunakan instrumen tes berjumlah 15 soal dan dianalisis dengan teknik deskriptif. Hasil penelitian ini menyatakan bahwa pemahaman mahasiswa Fisika terhadap penggunaan kalimat efektif sebesar 40% pada kriteria sangat baik, 33,33% kriteria baik, 13,33% kriteria cukup dan kurang. Kesimpulan dari penelitian ini adalah pemahaman mahasiswa terhadap kalimat efketif tergolong sedang.Kata Kunci : Kalimat Efektif
PENGEMBANGAN LEMBAR KERJA SISWA DENGAN PENDEKATAN SAINTIFIK PADA PELAJARAN BAHASA INGGRIS DI KELAS IV SD NEGERI 101775 SAMPALI
Authors: Betty Simanjuntak Eva , Khairina Mifta
Published: July 2023

Abstract : Development of Student Worksheets in Scientific Approach inEnglish Language Lessons in Class IV of the Public Elementary School 101775Sampali. This study aims to improve student learning outcomes in English subjects.The results of this study are that the validation of student worksheets is relativelygood, this can be seen from the assessment carried out by the validator. The resultsobtained from the design expert validation obtained an average score of 3.53, thevalidation of the material experts obtained an average score of 3.93, while the expertvalidation of the education practitioners obtained an average score of 4.00. Thus, itcan be concluded that student worksheets (LKS) with a scientific approachdeveloped by researchers are worthy of being used as teaching materials to supportlearning in grade IV of elementary school.Keywords : Research and Development, Van den Akker Model, Scientific ApproachAbstrak : Pengembangan Lembar Kerja Siswa Pada Pendekatan Saintifik PadaPelajaran Bahasa Inggris di Kelas IV SD Negeri 101775 Sampali. Penelitian inibertujuan untuk meningkatkan hasil belajar siswa pada mata pelajaranbahasa Inggris. Hasil penelitian ini adalah validasi lembar kerja siswa tergolongbaik, hal ini dapat dilihat dari penlaian yang dilakukan oleh validator. Hasil yangdiperoleh dari validasi ahli desain memperoleh skor rata- rata 3,53, validasi dari ahlimateri memperoleh skor rata-rata 3,93, sedangkan validasi ahli praktisi pendidikanmemperoleh skor rata-rata 4,00. Dengan demikian, maka dapat disimpulkanbahwa lembar kerja siswa (LKS) dengan pendekatan saintifik yangdikembangkan oleh peneliti layak digunakan sebagai bahan ajar untukmendukung pembelajaran kelas IV Sekolah Dasar.Kata kunci : Researchand Development, Model Van den Akker, PendekatanSaintifik
EFEKTIFITAS PEMBELAJARAN SEJARAH MELALUI METODE KARYA WISATA DALAM UPAYA MENINGKATKAN MINAT BELAJAR SEJARAH SISWA KELAS XI IPS 3 SMAN 1 PANYABUNGAN
Authors: Nuh Nasution Muhammad
Published: July 2023

Abstract : Historical Learning Effectiveness Through Tourism Works MethodIn An Effort To Increase Interest in Historical Learning Class XI IPS Students 3 SMAN 1 Panyabungan. The purpose of this study is (1) To find out the use ofeffective tourism work methods so that learning can be fun, not boring and easilyunderstood by students. (2) To find out the obstacles in using tourism methods (3) Tofind out how much the results increase student learning achievement by using themethod of wisat work method on History Language subjects The results of researchstudents in the first cycle showed an average learning outcome of 71.05 and learningcompleteness in classical by 64%, So the results of the first cycle did not meet theindicators of success. The results of the second cycle are the average value of 85 25and the completeness of learning in classical is 91.17%. The results of this secondcycle clearly exceed the learning completeness criteria which require the average testresults to be at least 7.5 with the percentage of completeness ≥ 85%.Keywords: Learning Outcomes, Tourism Works, HistoryAbstrak : Efektivitas Pembelajaran Sejarah Melalui Metode Karya WisataDalam Upaya Meningkatkan Minat Belajar Sejarah Siswa Kelas XI IPS 3SMAN 1 Panyabungan. Tujuan Penelitian ini adalah (1) Untuk mengetahuipengguanaan metode karya wisata yang efektif agar pembelajaran bisamenyenangkan, tidak membosankan dan mudah difahami oleh siswa.(2) Untukmengetahui kendala- kendala dalam menggunakan metode karya wisata (3) Untukmengetahui seberapa besar peningkatan hasil prestasi belajar siswa denganmenggunakan metode metode karya wisatpada mata pelajaran Bahasa Sejaraha Hasilpeneltian siswa pada siklus I menunjukkan rata-rata hasil belajar sebesar rata 71,05dan ketuntasan belajar secara klasikal sebesar 64%, Jadi, hasil dari siklus I belummemenuhi indikator keberhasilan. Hasil dari siklus II adalah nilai rata-rata 85 25 danketuntasan belajar secara klasikal sebesar 91.17% . Hasil dari siklus II ini jelas telahmelampaui kriteria ketuntasan belajar yang mensyaratkan rata- rata hasil tes minimal7,5 dengan prosentase ketuntasan ≥ 85 %.Kata Kunci :Hasil Belajar, Karya Wisata, Sejarah
The place and role of legality among the principles of applying measures of administrative coercion
Authors: Myrhorodska O.M.
Published: July 2023

The article, based on the analysis of current legislation, available scientific, journalistic and methodical sources, defines the place and role of legality among the principles of applying measures of administrative coercion. The essence of the principles as a special set of objective and subjective principles, guiding ideas and recognized regularities, aimed at achieving optimal options for any procedural activity, including the application of administrative coercion measures, has been clarified.The principles of applying measures of administrative coercion are highlighted, including the principles of: reasonableness; justice, which is a decisive regulator of social relations, and consists in an equal legal scale of behavior and in the proportionality of legal responsibility to the offense committed; expediency, i.e. compliance of coercive measures (including administrative punishment) with the goals of implementing the norms of administrative coercive legislation; the inevitability of the application of coercive measures and, above all, punishment, which means its inevitability; humane treatment of a person regardless of whether the person is a criminal or not; equal (non discriminatory) treatment of persons subject to coercive measures; openness and transparency of the application of coercive measures, which involves providing all interested persons with the opportunity to receive reliable information about the subject of administrative jurisdiction, whose activities directly affect the rights and legitimate interests of individuals or legal entities; the timeliness of the application of coercive measures, which means their use without delay and in accordance with the current legislation to ensure compliance with the rules, norms and standards established by the state.The importance of the principle of legality as an important and integral basis for the application of administrative coercion measures is emphasized, which is the fundamental basis of the rule of law, which guarantees equality before the law, fairness and predictability of legal norms, serves as a guiding principle in the process of law-making and implementation of legal norms; contributes to the prevention of abuses, the protection of the rights and freedoms of citizens and the maintenance of trust in the legal system, allows balancing the need to ensure the safety of society and respect for the rights and freedoms of each individual.Characteristic features of the principle of legality of the application of administrative coercion measures have been determined.
The concept of obligation in the views of J. Bentham and A. Comte
Authors: Popovych T.P.
Published: July 2023

The article is devoted to the analysis of the concept of obligation in the light of the views of certain thinkers of utilitarianism and positivism, namely: J. Bentham and A. Comte. The author emphasizes that in the context of the teachings of J. Bentham, obligation appears as a necessary element of promoting happiness at the individual and social levels. It also extends to the government by establishing a system of incentives and punishments for society. In this way, acting on the basis of the principle of utility, the individual is able to realize the maximum measure of happiness (reducing the level of suffering and increasing the level of pleasure) both for himself and for society as a whole. The obligation is significant, first of all, for the person himself, because, in this way, he can expect the same assistance and participation from others. Legal obligation, based on the principle of utility, outlines the realization of two possibilities: if an individual acts as prescribed by law, he contributes to individual and social happiness; if he does not act in a manner determined by the law, which appears binding on his behavior, then he must undergo suffering, which is fixed by sanctions (through the system of punishments).In turn, based on the views of A. Comte, it can be noted that the category of obligation, although not covered on a large scale, is a significant factor in social development. The obligation is a necessary element of social solidarity, the “victory” of altruism over selfishness, social skills and feelings over natural ones. A person’s development of his physical, intellectual and moral powers is a substantive prerequisite for harmonious relations in society. The philosopher is convinced that a person learns obligations (submission and obedience), first of all, in the family as the main structural unit of society. In the future, such “learning” is transferred to society and the state. A. Comte believes that a person should adjust himself in such a way in the future to be able to obey social requirements. As a result, the only right that every person has is the right to fulfill his obligation. The high spirit of obligation, which will cover all spheres of social life, will be able to provide conditions for social progress, the idea of which permeates the works of the thinker as a whole.
MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS SISWA SMP NEGERI 1 TUNGKAL ULU PADA MATERI BIOTEKNOLOGI MELALUI MODEL PROJECT BASED LEARNING
Authors: Sofyana Nana
Published: July 2023

His Classroom Action Research aims to improve students' critical thinking skills at SMP Negeri 1 Tungkal Ulu in Biotechnology material through a Project Based Learning model. This research was conducted at SMPN 1 Tungkal Ulu. The subjects of this study were students of class IX A with a total of 30 students. This research was conducted in January 2022 - February 2022 even semester of the 2020/2021 school year. This classroom action research was carried out using the research cycle model from Kemmis and Mc. Taggart. This research was conducted through four stages, namely action planning, action implementation, observation/evaluation and reflection as a basis for re-planning for further research. In cycle I, students' critical thinking skills in Biotechnology material in cycle I obtained a percentage of 56.6% with a total of 17 students who received a completeness score of ≥65. In the second cycle of research, a percentage of 86.67% was obtained with a total of 26 students who received a completeness score of ≥65. The percentage of action monitoring instruments in cycle I obtained a percentage of 65% and increased in cycle II by obtaining a percentage of 87%. Then the same thing happened to the results of monitoring student actions in cycle I which obtained a percentage of 64% and experienced an increase by obtaining a percentage of 84%. The implication of this classroom action research is that the critical thinking skills of class IX A students in Biotechnology material can be increased by applying the Problem Based Learning approach in their learning process.
Kebijakan Pendidikan pada Perguruan Tinggi Islam: Tranformasi STAIN dan IAIN Menjadi UIN
Authors: Husain Saddam , Dwi Wahyuni Andi Eki
Published: July 2023

STAIN/IAIN as Islamic educational institutions are required to meet the needs of the community who want general education within the scope of Islamic education. If the STAIN/IAIN cannot respond, then this institution will be used as a second choice by the community and may even be abandoned by the community. The idea of ​​transforming IAIN/STAIN into UIN was based on many factors, including the desire to carry out scientific integration so as to create a complete university, meet market needs and as a response to the emergence of modernization and globalization.
Digital Transformation of Strategic Management of SMEs in the Czech Republic
Authors: ČERVINKA Tomáš
Published: July 2023

Strategic management of SMEs is perceived as crucial backbone of their business, as it impacts their business models and internal processes all the way up to digital innovation measured by the level of digital maturity. How do the strategic management factors influence the digital maturity? Through quantitative analysis of 76 questionnaires collected from SMEs in the Czech Republic, the research data was collected and statistically tested. Results imply that strategic management factors affect the level of digital maturity. This paper contributes to prior literature by practical implementation of modified digital maturity model and by addressing the correlation of strategic management factors and the level of digital maturity. Limitations springing from sample’s site and environment are addressed and discussion on the results is conducted. Author proposes a conclusion that strategic management factors can be perceived as a driver of digital transformation, emphasizing the need for future research and practical discussion.
Optimización del diseño de hélices marinas mediante el método de Lagrange.
Authors: Chafuelán Vera Ariel Humberto , De la Rosa Rosales Yusnier Enrique
Published: July 2023

En este artículo, se analiza la aplicación del método del multiplicador Lagrange en función del método de Newton y el método de gradiente de primer orden para un diseño óptimo de hélices marinas. El método del multiplicador de Lagrange puede transformar el problema de optimización con restricciones en un problema de optimización sin restricciones; el método de Newton y el método del gradiente de primer orden pueden resolver problemas de optimización sin estas. Para ello, se explora la teoría básica del método del multiplicador de Lagrange y se analizan sus métodos relacionados. En la selección del método de diseño, este documento utiliza un ejemplo simple para probar los resultados y elige el método de Lagrange -Newton.  Para lograr verificar los resultados se aplica un ejemplo de diseño, el método propuesto al diseño del paso de la hélice y la curvatura se compara con los resultados del diseño con el método tradicional de diseño teórico de la hélice.  El método de Lagrange-Newton puede diseñar de manera estable una geometría que satisfaga las condiciones de restricción, siempre y cuando debido a la distribución de presión resultante el paso o la curvatura se diseñe por separado.
ПРЕДСТАВЛЕНИЕ РЕШЕНИЙ СИСТЕМЫ УРАВНЕНИЙ ДВИЖЕНИЯ С ПОМОЩЬЮ ТРИГОНОМЕТРИЧЕСКИХ РЯДОВ
Authors: Баутин С. П. , Карелина О. А. , Обухов А. Г.
Published: July 2023

В работе в случае двух независимых пространственных переменных рассматривается система уравнений движения сплошной среды при постоянных значениях плотности и температуры. Решения задачи Коши для этой нелинейной системы уравнений с частными производными представлены в виде тригонометрических рядов. Построена бесконечная система обыкновенных дифференциальных уравнений для нахождения коэффициентов тригонометрических рядов, зависящих от времени. Доказана сходимость используемых тригонометрических рядов. Также доказана теорема о кратных частотах, описывающая появление в решении гармоник, которых не было в начальных условиях.
Síntesis y caracterización del Mg(BOB)2 como electrolito para baterías recargables de iones de magnesio
Authors: Guzmán Torres Jesús , González Juárez Edgar , De la Parra Arciniega Salome Maribel , Espinosa Roa Arián , Sánchez Cervantes Eduardo Maximiliano
Published: July 2023

Se llevó a cabo el proceso de obtención libre de solventes de la sal bis(oxalato)borato de magnesio (Mg(B(C2O4)2)2, Mg(BOB)2), la cual es potencialmente viable para ser utilizada como material electrolítico en baterías recargables de iones de magnesio (RMIB). La síntesis utilizada fue por estado sólido donde en un primer paso se mezcló manual y homogéneamente, dentro de un mortero de ágata, sus tres precursores; ácido oxálico, ácido bórico e hidróxido de magnesio con una relación molar de 4:2:1, respectivamente. Como segundo paso, y debido a que se utilizan compuestos higroscópicos, se evitó la exposición de manera prolongada a la humedad ambiental llevándolos a un secado dentro un horno de vacío a 60 °C durante 1 h continua seguido de un tratamiento térmico de 110 °C por 3 h, para la eliminación del agua residual previo a la temperatura de síntesis de 150 °C. El Mg(BOB)2 sintetizado se caracterizó por difracción de rayos X (DRX) y por microscopía electrónica de barrido (MEB). Los resultados obtenidos mediante espectroscopia infrarroja por transformada de Fourier (FTIR) dentro del rango de número de onda de 4000–400 cm−1 confirmaron la aparición de los grupos funcionales del Mg(BOB)2, identificados por sus bandas características de absorción C=O, C-O-B-O-C, O-B-O y B-O. Además, el polvo del Mg(BOB)2 se utilizó para preparar un electrolito líquido con el solvente tetrahidrofurano (THF) y se evaluó en celdas de tres electrodos así como en medias celdas prototipo, caracterizadas con curvas de voltamperometría cíclica (VC).
Boron Removal by Adsorption onto Different Oxides
Authors: Sulaymoon Abbas, H. , Al-Naseri Saadi, K. , Qader Ibtihal, A.Jabbar, A.
Published: July 2023

A research was conducted to determine the feasibility of using adsorption process to remove boron from aqueous solutions using batch technique. Three adsorbent materials; magnesium, aluminum and iron oxide were investigated to find their abilities for boron removal. The effects of operational parameters on boron removal efficiency for each material were determined.The experimental results revealed that maximum boron removal was achieved at pH 9.5 for magnesium oxide and 8 for aluminum and iron oxide. The percentage of boron adsorbed onto magnesium,aluminum and iron oxide reaches up to 90, 42.5 and 41.5% respectively under appropriate conditions. Boron concentration in effluent water after adsorption via magnesium oxide comply with the allowable concentration according to WHO and the Iraqi drinking water guidelines, i.e. below 0.5 mg/l. Aluminum and iron oxide yield effluent water with boron concentration more than allowable limits. Accordingly,magnesium oxide is more suitable as adsorbent for boron removal from water; for its high adsorbent capacity and high removal ability for boron compared with aluminum and iron oxide.
Challenges of the Calamansi Industry in Oriental Mindoro, Philippines: Pests and Diseases Management
Authors: Masagca Macario B.
Published: July 2023

This policy brief is based on a study supported by the World Bank through the Department of Agriculture’s Philippine Rural Development Project (PRDP). The study entitled “Study on Pest and Diseases of Calamansi: Paving Ways for the Sustainability of Calamansi in Oriental Mindoro” is a one-year project that aims to help accelerate the institutionalization of mechanism that will sustain the production of disease-free calamansi products in Oriental Mindoro and to help advance the province’s reputation in the national calamansi market as prime producer and supplier of this product. Relevant activities in this study include field surveys, farmers' interviews, software development, greenhouse and scion grove establishment, and pest clinic via the web forum. This policy brief focuses on the (1) status of calamansi pests and diseases infestation in Oriental Mindoro; (2) the capacity of the farmers to address the calamansi pests and diseases problem; and (3) policy recommendations to address the calamansi pests and diseases problem and protect the calamansi industry of Oriental Mindoro.
Determination of Alcoholic Concentration in Four Different Home Brewed Alcoholic Beverages Using Gas Chromatography
Authors: Kaphle Sushma , Acharya Apurba , Shakya Arbin , Aryal Bijay
Published: July 2023

Introduction: Alcohol, one of the most commonly consumed beverages across the world is manufactured both industrially as well as locally in Nepal. The proportions of locally brewed alcoholic beverages are higher due to geographical variation as well as presence of a population with varied cultural background. Even though the industrially manufactured alcoholic beverages are quantified, the home brewed beverages usually are produced and consumed without quantification. These alcoholic beverages consist of various components such as ethanol, methanol, iso-propanol, iso-butanol and others, each component having different pharmacological properties.
Objectives: To determine the alcoholic concentration (ethanol, methanol, iso-propanol and iso-butanol) of four different varieties of home brewed alcoholic beverages in Jumla district, Nepal.
Methods: Probability random sampling method was used for sample collection and sampling. The samples were taken to Zest laboratory, Bhaktapur. The laboratory then analysed all four samples to determine the concentration of different alcohols using Gas Chromatography. Unknown concentrations of different alcohol in the sample were measured by injecting standard sample with known concentration.
Results: The concentration of alcoholic components in four different home brewed alcoholic beverage samples weredetermined using gas chromatographywith ethanol concentrations being 14.209%v/v, 16.323%v/v, 11.473%v/v and 49.217%v/v. Contamination was not detected in any of the samples except for one sample which contaminated iso-butanol (0.063% v/v).
Conclusion: Various alcoholic components are present in home brewed alcoholic beverages at varied concentration levels and quantification of these beverages is highly essential in order to prevent health hazards associated with these components.
Attitude of Medical Students towards Biochemistry and Its Integration through Problem-Based Learning
Authors: Pandey Rachana , Risal Prabodh
Published: July 2023

Introduction: Biochemistry is an important but volatile subject for undergraduate medical students and is included in integrated organ-based system with problem-based learning method in the curriculum of Kathmandu University School of Medical Sciences.
Objective: This study was conducted to assess students’ attitudes toward Biochemistry and its integration into problem-based learning.
Methods: It was a descriptive cross-sectional study that lasted 5 months (October 2020-February 2021) after ethical approval from the Institutional Review Committee- KUSMS. Among 150 students participated in the study, 51 were girls and 99 were boys. After taking consent, a pretested self-assessment semi structured questionnaire with a five point Likert scale for each question was used. Out of the statements in the questionnaire, eight questions were positive statements. Mean for each statement was calculated along with average mean score for each positive and negative statements.
Results: The mean positive score was 3.06 for the attitude towards studying Biochemistry. The mean score towards the negative statements was 2.4. The mean score was 3.36 for positive statements towards attitude of students towards integration of Biochemistry in problem-based learning whereas the mean score of negative statements was 3.41.
Conclusions: Students had overall positive attitude towards studying Biochemistry and its integration into an organ system based curriculum using problem-based learning.
Ақылды қалаларды дамытудың негізгі критерийлерін факторлық талдау негізінде анықтау
Authors: Кулбаева А.A. , Нахипбекова С.A. , Ыдырыс С.С. , Кулбаева М.A. , Ахметова К.И.
Published: July 2023

Мақсаты: Ақылды қалаға қойылатын талаптарды зерттеу және оның дамуы үшін маңызды деп саналатын әрбір элементке басымдық беру үшін аналитикалық иерархия процесінің (АИП) әдістемесін қолдану.

Әдісі: Мақалада статистикалық және сауалнамалық әдістер қолданылған. Сауалнама жауаптары SPSS 22. бағдарламасына енгізіліп, ақылды қала құру үшін өзгермелі элементтеріне қатысты нормативті тест нәтижелері мен факторлық талдау жасалған.

Қорытынды: Ақылды қала ― бұл қала тұрғындарының әл-ауқатына, өмір сүру сапасына, экономикалық, технологиялық, ұтқырлық, қоршаған ортаға қолайлылық аспектілерін қамтитын қала. «Ақылды қала» мәртебесіне жету үшін өлшемдерді ескеру қажет. «Ақылды қала» жоспарлаушылары қабылдаған стратегиялық шешімдері қаланың қоршаған ортаға қатысты қоғамға ықпал ететін инновациялар негізін құру үшін заманауи технологияларды пайдалану арқылы ресурстар мен мүмкіндіктерді қалай пайдаланатынын анықтауда маңызды рөл атқарады. Ақылды қалалар адамзаттың әртүрлі элементтеріне, оқытуға, қоршаған ортаға, технологиялық инфрақұрылымға, әлеуметтік дамуға және қалалық өсуге бағытталған.

Тұжырымдама: Ақылды орта мен ақылды ұтқырлық «ақылды қаланы» сәтті салудың екі маңызды факторы екендігі анықталды. «Ақылды қалаларды» қалыптастыратын нақты құндылықтар «ақылды экологиялық тәжірибе», «ақылды басқару», «ақылды өмір», «ақылды ұтқырлық», «ақылды адамдар» және «ақылды экономика» сияқты факторлардың тепе-теңдігіне негізделген. Бұл негізгі өлшемдер «ақылды қала» тұжырымдамасын жүзеге асыруға көмектесетін технологияларды қолдану үшін бірге жұмыс істейді.
PRIVATE HOUSEHOLD HEAT PUMP-BASED HEATING SYSTEM WITH PHOTOVOLTAIC PLANT
Authors: Golovko V. , Mikhalin V.
Published: July 2023

Heat supply is the most energy-consuming industry in Ukraine. The reason for this is a large number of buildings built with a low level of thermal insulation, outdated thermal energy equipment and infrastructure, as well as a low level of implementation of heating systems based on renewable energy sources. Heat pumps are one of the alternatives to fossil fuel boilers for use in household heating systems. The problem of optimizing the operation of heating systems based on heat pumps is of practical importance, since its solution will potentially allow achieving several energy effects, including: reducing operating costs, as well as increasing the level of autonomy of the heating system in the case of providing electricity from an autonomous photovoltaic plant.

The article presents the results of mathematical modeling of the heating system of a private house based on a heat pump, a thermal energy accumulator and a photovoltaic plant in the MATLAB/SIMULINK software environment. The model was created for the research purpose of the heating system of a private house with renewable energy sources through structural simulation modeling and conducting a comparative analysis of its management methods for three options (methods): "reactive", "economic" and "autonomous". It was found that the average annual operating costs with the "economic" method of management decreased by 22 % compared to the "reactive" method of management. When using the "autonomous" method of control, the annual maintenance cost of the system due to photogeneration increased by 48 %.
Do e-WOM Persuade Travelers Destination Visit Intentions? An investigation on how Travelers Adopt the Information from the Social Media Channels
Authors: Sharma Nidhi , Khatri Bhanupriya , Khan Shad Ahmad
Published: July 2023

The main aim of this study is to investigate how travelers adopt the information from Facebook (FB) electronic word of mouth (e-WOM) and its impacts on their intention to visit a destination. Purposive sampling was used to gather data from 412 visitors visiting several tourist destinations in major cities of India. To determine the minimum necessary sample size ―G*Power software version 3.1.9.7‖ was used. For data analysis, Partial Least Square Structural Equational Modelling (PLS-SEM) was used in the study. The results of this study show that all the antecedents except timeliness have a significant influence on travelers' visit intentions through Facebook e-WOM adoption. The outcomes of this study will be beneficial to internet community organizers in terms of better managing their websites for the aim of delivering relevant information. It would also benefit them in attracting users and, as a result, in paying advertisers. This research aids to the knowledge about the use of the content of Facebook e-WOM to help people decide whether or not to visit a certain destination. The major limitation is that this study is more inclined towards the destination visit intentions of travelers rather than actual visit behavior.
Kinetics and Mass Transfer Study of Oleic Acid Esterification over Prepared Nanoporous HY zeolite
Authors: Abbas Ammar S. , Albayati Talib M. , Alismaeel Ziad T. , Doyle Aidan M.
Published: July 2023

A mathematical model was proposed to study the microkinetics of esterification reaction of oleic acid with ethanol over prepared HY zeolite catalyst. The catalyst was prepared from Iraqi kaolin source and its properties were characterized by different techniques. The esterification was done under different temperature (40 to 70˚C) with 6:1 for molar ratio of ethanol to oleic acid and 5 % catalyst loading.

   The microkinetics study was done over two period of time each period was examined individually to calculate the reaction rate constant and activation energy. The impact of the mass transfer resistance to the reactant was also investigated; two different studies have been accomplished to do this purpose.

   The effect of the external mass transfer resistance was studied by exploring different stirring speed (400 to 800 rpm). The results show that, the oleic acid conversion increase with increasing the stirring speed until reached 600 rpm, after this rpm the conversion doesn’t increase significantly, which mean that, the effect of external mass transfer resistance was eliminated. The activation energy for the first period is equal to 41.84 kJ/mol while in the second period is equal to 52.03 kJ/mol. The Thiele modulus calculation results show that there is no effect of mass transfer on the reaction inside the catalyst pores.
Adsorption Kinetic and Isotherms Studies of Thiophene Removal from Model Fuel on Activated Carbon Supported Copper Oxide
Authors: Ammar Saad H. , Jaafar Sama Ali
Published: July 2023

In the present study, activated carbon supported metal oxides was prepared for thiophene removal from model fuel (Thiophene in n-hexane) using adsorptive desulfurization technique. Commercial activated carbon was loaded individually with copper oxide in the form of Cu2O/AC. A comparison of the kinetic and isotherm models of the sorption of thiophene from model fuel was made at different operating conditions including adsorbent dose, initial thiophene concentration and contact time. Various adsorption rate constants and isotherm parameters were calculated. Results indicated that the desulfurization was enhanced when copper was loaded onto activated carbon surface. The highest desulfurization percent for Cu2O/AC and origin AC at initial thiophene concentration of 500 ppm, adsorbent dose of 0.01 g/ml and equilibrium time of 5 hr were 87.4% and 53.4% respectively, for outlet concentration of 63 mg/L for copper oxide and 236 mg/L for original AC. Generally, the percent removal of thiophene increases with the increase in adsorbent dose and decrease with increase in initial thiophene concentration. The present study was mainly focusing on the kinetics and adsorption isotherms aspect; adsorption kinetics of thiophene onto activated carbon supported Cu2O adsorbent was closely represented by the second order kinetic model and Freundlich isotherms well represented the equilibrium adsorption of thiophene from model fuel.
Controversies in the Ukrainian field of philosophy of educatio
Authors: Klepko Serhii
Published: July 2023

In order to establish and outline the current state of Ukrainian philosophy of education as a scientific philosophical direction and at the same time a social institutional system that has emerged in Ukraine during the last three decades, a “controversial” approach is used, a method of studying controversies or disputed points, contradictions and tensions between representations and discourses regarding education A working definition of controversy is formulated as an intermediate category that contributes to overcoming gaps between the object of research and the research position in a situation of contradiction and tension between representations and discourses around a certain object, which is expressed in open or hidden debates, disputes, etc. and which characterized by zones of uncertainty regarding the “trajectory“ of this object. An attempt is made to catalog the controversies of the philosophy of education. The controversies of the hypostases of the philosophy of education, reforms of Ukrainian education are considered; interaction between education and philosophy of education in the system of “dirty systems”; toxic spaces in education and the action of the Lucifer effect (F. Zimbardo) in them as the metamorphosis of good into evil. The precedent of the loss of reputation by a group of scientists representing the field of philosophy of education is discussed. The progress of the Ukrainian philosophy of education is noted and its tasks are outlined in the research of social relations in education, the sphere of relations between subjects of education, toxic spaces in education. The “controversial” approach provides an opportunity to bring the philosophy of education closer to the subjects of education, involving them in the study of tensions between discourses and representations that they create and formulate.
Qualitative Study of a Discrete-Time Harvested Fishery Model in the Presence of Toxicity
Authors: MUKHERJEE Debasis
Published: July 2023

This paper analyses a discrete-time Michaelis-Menten type harvested fishery model in the presence of toxicity. Boundary and interior (positive) fixed points are examined. Using an iteration scheme and the comparison principle of difference equations, we determined the sufficient condition for global stability of the interior fixed point. It is shown that the sufficient criterion for Neimark-Sacker bifurcation and flip bifurcation can be established. It is observed that the system behaves in a chaotic manner when a specific set of system parameters is selected, which are controlled by a hybrid control method. Examples are cited to illustrate our conclusions.
Peningkatan Kinerja Mesin Kapal Tunda Dengan Implementasi Total Productive Maintenance (TPM)
Authors: Caswito Ade Caswito Ade
Published: July 2023

TPM (total productive maintenance) merupakan suatu konsep untuk mengefisensi operasional dan memperbaiki kualitas suatu produk dan mempunyai suatu metode yaitu Oee dan metode untuk mengukur efektivitas pada penggunaan suatu alat, dan dikenal sebagai salah satu program aplikasi dari TPM tersebut. Hal utama dalam metode ini yaitu untuk identifikasi suatu masalah serta faktor penyebabnya agar lebih mudah untuk melakukan suatu perbaikan dalam suatu alat, maka dari perusahaan-perusahaan di dunia banyak sekali menggunakan metode ini. umpama suatu alat atau mesin secara mendadak berhenti, berkurangnya laju produksi mesin, lama nya waktu (setup dan adjustment), mesin yang beroperasi tetapi produk yang dihasilkan oleh mesin banyak yang cacat dan produk yang dihasilkan tidak memenuhi standar yang sudah ditentukan. Dalam peneleitian ini didapatkan nilai Oee sejumlah 73.51%. Maka acuan PT. ABC untuk mengupayakan perbaikan dalam proses produksi untuk meningkatkan kinerja dan mengefisiensikan produksi maka cara mengatasi masalah tersebut dilakukan dengan TPM sebagai alat yang digunakan, selain itu  untuk mengukur dan mengetahui kinerja mesin/alat yaitu dengan metode Oee. Penelitian ini bertujuan untuk mendapatkan suatu gambaran yang sesuai dengan faktor yang mengupayakan implementasi dari penerapan TPM dengan melihat faktor dari (six big losses) yang mana terjadinya penurunan efektivitas. Hal ini peneliti menuliskan untuk mengusulkan suatu perbaikan pada kapal laut dalam mengefesiensikan dan meningkatkan kinerja operasional melalui implementasi dari penerapan TPM.
Isolation and characterization of a novel mycobacteriophage Kashi-VT1 infecting Mycobacterium species
Authors: Nayak Tanmayee , Kakkar Anuja , Singh Rakesh Kumar , Jaiswal Lav Kumar , Singh Anand Kumar , Temple Louise , Gupta Ankush
Published: July 2023

Mycobacteriophages are viruses that infect members of genus Mycobacterium. Because of the rise in antibiotic resistance in mycobacterial diseases such as tuberculosis, mycobacteriophages have received renewed attention as alternative therapeutic agents. Mycobacteriophages are highly diverse, and, on the basis of their genome sequences, they are grouped into 30 clusters and 10 singletons. In this article, we have described the isolation and characterization of a novel mycobacteriophage Kashi-VT1 (KVT1) infecting Mycobacterium >smegmatis mc2 155 (M. smegmatis) and Mycobacterium fortuitum isolated from Varanasi, India. KVT1 is a cluster K1 temperate phage that belongs to Siphoviridae family as visualized in transmission electron microscopy. The phage genome is 61,010 base pairs with 66.5% Guanine/Cytosine (GC) content, encoding 101 putative open reading frames. The KVT1 genome encodes an immunity repressor, a tyrosine integrase, and an excise protein, which are the characteristics of temperate phages. It also contains genes encoding holin, lysin A, and lysin B involved in host cell lysis. The one-step growth curve demonstrated that KVT1 has a latency time of 90 min and an average burst size of 101 phage particles per infected cell. It can withstand a temperature of up to 45°C and has a maximum viability between pH 8 and 9. Some mycobacteriophages from cluster K are known to infect the pathogenic Mycobacterium tuberculosis (M. tuberculosis); hence, KVT1 holds potential for the phage therapy against tuberculosis, and it can also be engineered to convert into an exclusively lytic phage.
Reframing the link between metabolism and NLRP3 inflammasome: therapeutic opportunities
Authors: Ortega Miguel A. , De Leon-Oliva Diego , García-Montero Cielo , Fraile-Martinez Oscar , Boaru Diego Liviu , de Castro Amador Velazquez , Saez Miguel A. , Lopez-Gonzalez Laura , Bujan Julia , Alvarez-Mon Miguel Angel , García-Honduvilla Natalio , Diaz-Pedrero Raul , Alvarez-Mon Melchor
Published: July 2023

Inflammasomes are multiprotein signaling platforms in the cytosol that senses exogenous and endogenous danger signals and respond with the maturation and secretion of IL-1β and IL-18 and pyroptosis to induce inflammation and protect the host. The inflammasome best studied is the Nucleotide-binding oligomerization domain, leucine-rich repeat-containing family pyrin domain containing 3 (NLRP3) inflammasome. It is activated in a two-step process: the priming and the activation, leading to sensor NLRP3 oligomerization and recruitment of both adaptor ASC and executioner pro-caspase 1, which is activated by cleavage. Moreover, NLRP3 inflammasome activation is regulated by posttranslational modifications, including ubiquitination/deubiquitination, phosphorylation/dephosphorylation, acetylation/deacetylation, SUMOylation and nitrosylation, and interaction with NLPR3 protein binding partners. Moreover, the connection between it and metabolism is receiving increasing attention in this field. In this review, we present the structure, functions, activation, and regulation of NLRP3, with special emphasis on regulation by mitochondrial dysfunction-mtROS production and metabolic signals, i.e., metabolites as well as enzymes. By understanding the regulation of NLRP3 inflammasome activation, specific inhibitors can be rationally designed for the treatment and prevention of various immune- or metabolic-based diseases. Lastly, we review current NLRP3 inflammasome inhibitors and their mechanism of action.
The balanced unsaturated fatty acid supplement constituted by woody edible oils improved lipid metabolism and gut microbiota in high-fat diet mice
Authors: Chen Xi , Ran Jingqi , Mazhar Muhammad , Zhu Yong , Lin Yichen , Qin Likang , Miao Song
Published: July 2023

The dietary intervention has demonstrated effectiveness in improving hyperlipidemia and obesity. Woody edible oils are rich in unsaturated fatty acids (UFAs) that could positively affect lipid metabolism. In this study, the blended oil (BLO), a balanced UFA supplement, constituted by Zanthoxylum bungeanum (Chinese Red Pepper) seed oil, walnut (Juglans regia) oil, camellia (Camema oleifera) seed oil and perilla (Perilla frutescens) seed oil was established referring to the Chinese dietary reference intakes, in which the ratios of monounsaturated/polyunsaturated fatty acids and ω-6/ω-3 polyunsaturated fatty acids were 1:1 and 4:1, respectively. The BLO was administrated to KM mice fed a high-fat diet (HFD) by gavage every day at a dose of 3.0 mL/kg·bw for 10 weeks to assess its effects on serum lipid levels, liver antioxidant activities and gut microbial composition. The results showed that the BLO improved hepatic steatosis, liver oxidative stress, and serum lipid levels. Additionally, there was an increased abundance of Lactobacillus, Allobaculum, and Blautia, along with a decreased abundance of Staphylococcus in cecal contents. These changes were found to be positively correlated with the metabolic improvements, as indicated by Spearman’s correlation analysis. These findings implied the practicality of the balanced unsaturated fatty acid consumption in preventing hyperlipidemia and obesity.
Yield performance, mineral profile, and nitrate content in a selection of seventeen microgreen species
Authors: Di Gioia Francesco , Hong Jason C. , Pisani Cristina , Petropoulos Spyridon A. , Bai Jihne , Rosskopf Erin N.
Published: July 2023

Introduction

Originally regarded as garnish greens, microgreens are increasingly valued for their nutritional profile, including their mineral content.

Methods

A study was conducted under controlled environmental conditions utilizing a selection of seventeen microgreen species belonging to seven different botanical families to investigate the genetic variation of macro- and micro-minerals and nitrate (NO3-) content. Plants were grown in a soilless system using a natural fiber mat as the substrate. After germination, microgreens were fertigated with a modified half-strength Hoagland solution prepared using deionized water and without adding microelements. At harvest (10 to 19 days after sowing, based on the species), yield components were measured and dry tissue samples were analyzed for the concentration of total nitrogen (N), NO3-, P, K, Ca, Mg, S, Na, Fe, Zn, Mn, Cu, and B.

Results and discussion

Genotypic variations were observed for all of the examined parameters. Nitrogen and K were the principal macronutrients accounting for 38.4% and 33.8% of the total macro-minerals concentration, respectively, followed in order by Ca, P, S, and Mg. Except for sunflower (Helianthus annuus L.), all the tested species accumulated high (1,000-2,500 mg kg-1 FW) or very high (>2,500 mg kg-1 FW) NO3- levels. Eight of the studied species had a K concentration above 300 mg 100 g-1 FW and could be considered as a good dietary source of K. On the other hand, scallion (Allium fistulosum L.), red cabbage (Brassica oleracea L. var. capitata), amaranth (Amaranthus tricolor L.), and Genovese basil (Ocinum basilicum L.) microgreens were a good source of Ca. Among micro-minerals, the most abundant was Fe followed by Zn, Mn, B, and Cu. Sunflower, scallion, and shiso (Perilla frutescens (L.) Britton) were a good source of Cu. Moreover, sunflower was a good source of Zn, whereas none of the other species examined could be considered a good source of Fe and Zn, suggesting that supplementary fertilization may be required to biofortify microgreens with essential microminerals. In conclusion, the tested microgreens can be a good source of minerals showing a high potential to address different dietary needs; however, their yield potential and mineral profile are largely determined by the genotype.
Perception-reality bias: the differences in government trust across income groups
Authors: Jiang Kezhong , Zhang Yiqiang , Shi Victor
Published: July 2023

This paper first measures and compares the size of middle-income groups in China based on the subjective income evaluation method and the objective criteria. Second, it empirically investigates the differences in government trust of different income groups defined by the subjective evaluation method and the objective criteria. It is found that there is a significant difference between the results of the subjective evaluation of income and objective criteria. Compared with individuals in the middle-income group, individuals in the low-income group have a significantly worse overall evaluation of local government and a considerably lower trust in local government officials. On the other hand, individuals in the high-income group have a substantially better assessment of local government and a significantly higher trust in local government officials. However, the differences in trust in government across income groups defined by objective criteria are insignificant overall. In terms of policy insights, the effect of targeting low-income groups determined by subjective evaluation may be more effective in improving people’s trust in the government.