bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of Disinfection Technique of Spraying and Soaking Peronema canescens Jack 1% on Changes in Alginate Dimensions
Authors: Fadriyanti Okmes , Widyawati Widyawati , Marwi Hamna
Published: January 2024

Background: Alginate prints can be a medium of transmission that has the potential for cross-infection. Prevention of cross-infection can be done by spraying and soaking disinfection. Alginate molds in contact with water can cause the material to expand. Sungkai leaves (Peronema canescens jack) which contain antibacterials, can be a disinfection agent. Objective: This research is to determine the effect of spraying and soaking disinfection techniques with 1% sungkai leaf extract on changes in the dimensions of alginate molds. Methods: Making alginate mold samples totaling 72 samples, consisting of 6 groups and measured within 5, 10, 15 minutes. Test changes in dimensions of the alginate mold using digital calipers were analyzed using the Wilcoxon test followed by the Mann-Whitney test. Results: there was no effect of spraying with 1% sungkai leaf extract (Peronema canescens jack) on changes in the dimensions of the alginate mold within 10 minutes (p0.05), and there was an effect of soaking within 10 minutes on the dimensions of the alginate mold. Conclusion: disinfection by spraying and soaking with 1% sungkai leaf extract against changes in the dimensions of the alginate mold still complies with ADA specifications at the clinical tolerance limit below 0.5%.
GAMBARAN TINGKAT PENGETAHUAN PASANGAN USIA SUBUR TENTANG PENGGUNAAN ALAT KONTRASEPSI IUD
Authors: Ardanti Ni Komang Junia , Dewi Ni Luh Made Asri
Published: January 2024

Family Planning Program is an effort to create a quality family through promotion, protection and assistance in realizing reproductive rights as well as providing the necessary services, arrangements, and support. Acceptors of the Intra Uterine Device (IUD) still have misconceptions about the use of IUDs, which influences the use of IUD contraceptives. From several studies it was found that education can influence a person, including the acceptor's behavior in choosing a contraceptive method. The aim of this study was to determine the level of knowledge of couples of childbearing age regarding the use of IUD contraception. This type of research is quantitative with a descriptive analytical research design. The research location is UPTD Puskesmas I North Denpasar. The sample in this study was 176 couples of childbearing age, who were selected using a non-probability technique: purposive sampling. The research instrument used was a questionnaire with 10 knowledge questions about the use of IUD contraception. Data were analyzed with univariate tests. The research results showed data on the characteristics of respondents in the 20-35 years age range as many as 103 respondents (58,5%), SMA/SMK education was 112 respondents (63,6%), and private employment was 77 respondents (43,8%). The level of PUS knowledge in the use of IUD contraception was mostly in the good category with 122 respondents (69,3%).
Draft Federal Accounting Standard (FSBU) 4/2023 – Accounting (Financial) Statements: Content analysis and recommendations for improvement
Authors: ZAIKA Vyacheslav S.
Published: January 2024

Subject. This article analyzes the content of the draft Federal Accounting Standard (FSBU) 4/2023 – Accounting (Financial) Statements from the perspective of the theory and practice of the formation and presentation of accounting (financial) statements. Objectives. The article aims to analyze the content of the draft FSBU 4/2023 – Accounting (Financial) Statements, its differences from the current regulations, including the approaches used in IFRS, as well as the comments received as a result of public discussion of the draft, and develop recommendations for its improvement. Methods. For the study, I used the methods of analysis, comparison, grouping, generalization, and the method of analogy. Results. Based on the analysis of the content of the draft FSBU 4/2023 – Accounting (Financial) Statements, as well as the comments received as a result of its public discussion, the article identifies the differences between the draft and the current regulatory documents under RAS and IFRS, its advantages and disadvantages. The article also presents recommendations for improving the content of the draft Federal Standard. Conclusions and Relevance. The draft FSBU 4/2023 – Accounting (Financial) Statements, aimed at bringing the regulatory requirements for the composition and content of information disclosed in accounting (financial) statements with the requirements of the current legislation, brings accounting (financial) statements under RAS closer to financial statements under IFRS. Taking into account the fact that the project contains certain shortcomings, there are prospects for its improvement. The results obtained can be applied in the theory and practice of accounting and reporting.
Targeted financing of land reclamation works at agricultural enterprises: Accounting and reporting
Authors: ULLAH Raheem
Published: January 2024

Subject. This article discusses the issues of ensuring food security in Russia through improving the quality of agricultural land, which can be achieved through the implementation of reclamation measures on agricultural lands, the financing of which is performed through the provision of State aid.
Objectives. The article aims to study the methodology of accounting for State aid to land reclamation works in agriculture, identify problems, and propose ways to solve them.
Methods. For the study, I used a dialectical approach, observation, analysis and synthesis, comparison, as well as elements of the accounting method.
Results. An analysis of the accounting of budget financing for land reclamation works reveals that different regulatory documents contain different methods. On the basis of this analysis, the article proposes a set of accounting records for State aid, as well as analytical accounts for accounting for budget financing for reclamation work performed for agricultural enterprises.
Conclusions and Relevance. The proposed system of analytical accounting and accounting records for accounting of State aid for land reclamation works in agriculture will improve the efficiency of control over the targeted use of allocated budget funds. The results of the study can be applied in the system of accounting and internal control of agricultural organizations.
Overcoming technological dependence in oil refining and petrochemical industry under sanctions
Authors: SHIMKO Oleg V.
Published: January 2024

Subject. The article addresses the system of strategic planning, problems of modernization of enterprises operating in the energy sector.
Objectives. The aim is to assess the effectiveness of the current system of strategic planning in Russia, analyze the main documents (strategies, plans, programs) regulating the development of the energy sector in the context of sanctions, compare key performance indicators of oil and gas processing for major enterprises in Russia.
Methods. The study employs methods of comparative analysis.
Results. The study established that many official documents regulating the development of the energy sector duplicate each other. The main problems of the industry relate to the introduction of necessary technologies for deep oil refining, creation of modern facilities for the production of a particular type of product.
Conclusions. New sanctions on the energy sector of the Russian economy are a serious obstacle to the development of oil refining and petrochemical industry.
DEL ACTO SUICIDA COMO IRREDUCTIBLE AL INDIVIDUO E INASIBLE A TODA PSICOLOGIZACIÓN
Authors: Jiménez-Betancourt Raúl
Published: January 2024

En el presente texto se intenta mostrar cómo desde el psicoanálisis lacaniano el acto suicida dista de ser un asunto individual. Para tales fines, es necesario insistir en la diferenciación entre sujeto e individuo que, a pesar de que a nivel significante pueda estar sobreentendida (in-dividuo es sin división, mientras que el sujeto está dividido), a nivel conceptual y clínico siguen existiendo ciertas ambigüedades. Principalmente, porque la clínica analítica no deja de realizarse con personas concretas que acuden a un consultorio, y porque desde Freud, la técnica fue pensada para operar sobre las neurosis. Así, este escrito se inscribe en un marco de una despsicologización tanto del suicidio como del análisis mismo; o, en términos de matema: barrar la letra psi.
A PROPÓSITO DE LA HOSTIPITALIDAD DE LA ESCUELA
Authors: Jiménez León Javier
Published: January 2024

A mediados de los años 60’s, Lacan reunía a su alrededor a todo un grupo de seguidores —generalmente, amigos, alumnos y colegas— interesados en participar de su enseñanza. Así, a manera de reivindicación de la letra freudiana versus las teorías kleiniana y postfreudianas, es fundada la primera Escuela de psicoanálisis, apellidada, en honor a aquella empresa, Freudiana de París, denominación —la de Escuela— que nos remite directamente a la filosofía aristotélica, pero también a una manera de transmisión que tuvo particular importancia en la Edad Media. ¿Por qué Freudiana? ¿Por qué Escuela? ¿A qué responden las llamadas “Escuelas de” psicoanálisis en nuestra época? ¿Quiénes son recibidos, y cómo, en ellas?
EL AMOR, EL ESPANTO Y EL NÚMERO: ACERCA DE LA FORMACIÓN DEL ANALISTA CONTEMPORÁNEO
Authors: Barlocco Lucía
Published: January 2024

Este artículo es el producto del pensar con otros, con quienes estoy de acuerdo y no, sobre el ejercicio del psicoanálisis; es producto de horas de pasiva escucha en loop de aforismos vacíos, de polémicas presentaciones de enfermos, de lecturas erráticas a Jacques Lacan en una lengua que no es la suya y de largas conversaciones con quienes encuentran en el psicoanálisis la puerta caliente del infierno propio. Por lo tanto, no tiene más valor que el testimonial. Lacan ha muerto, la palabra es de otro, y los intentos por lograr una garantía institucional transforman el tomar la palabra en s’autoriser de soi pour dire n’importe quoi. Tomaremos esta enunciación para interrogarnos a propósito del lugar de las Asociaciones y Escuelas en las que convergen modalidades definidas y estandarizadas de formación de psicoanalistas por las vías de regulación institucional.
Incremento de la actividad física en estudiantes universitarios mediante la enseñanza virtual
Authors: Blásquez Sánchez Sergio , Rosales-Ronzón Enrique , Cortés-Sosa Luis Gerardo , May-Hernández Dania Merari
Published: January 2024

La Organización Mundial de la Salud recomienda realizar al menos 150min de actividad física moderada o 75min de vigorosa por semana. Debido a la pandemia por COVID-19 la población disminuyó su nivel de actividad física, motivo por el cual se implementaron diversas estrategias para incrementarlo, una de ellas, la promoción de experiencias educativas físico-deportivas en modalidad virtual. Objetivo: Analizar el incremento del nivel de actividad física en estudiantes universitarios con respecto a la toma de experiencias educativas físico-deportivas virtuales. Tipo de estudio: observacional, transversal, se cuantificaron los niveles de actividad física antes y después de la toma de la experiencia educativa. Resultados: se observó un incremento estadísticamente significativo del nivel de actividad física vigorosa y moderada después de la experiencia educativa. Conclusión: Las experiencias educativas físico-deportivas en modalidad virtual representaron un factor asociado al incremento de actividad física en el contexto de la COVID-19.
 
Increase of physical activity in college students through virtual education
Abstract: The World Health Organization recommends performing at least 150 minutes of moderate intensity activity or 75 minutes of vigorous intensity activity per week. Due to the COVID-19 pandemic, the population has decreased its physical activity levels, leading to the implementation of different strategies to increase them; one of them is the promotion of virtual physical-sportive educative experiences. Objective: To analyze the increase in physical activity levels among college students in relation to participating in virtual physical-sportive educative experiences. Study type: Observational and cross-sectional study. The study quantified physical activity levels at the beginning and at the end of the educational experiences. Results: A statistically significant increase in physical activity was observed at the end of the educational experiences. Conclusion: Virtual physical-sportive educative experiences were associated with increased physical activity in the context of COVID-19.
Garantizando el Derecho a la Educación Médica
Authors: García Franco Cristina , Gutiérrez-Aguilar Pedro , Calderón Gómez Manuel Saiz , Cuellar Gutiérrez Rosa
Published: January 2024

Contexto. El espacio docente-asistencial, es un área de formación fuera de las aulas universitarias, donde los internos de pregrado deben desarrollarse integralmente. Objetivo. Implementar una propuesta de intervención que sea garante del derecho a la educación en el espacio docente-asistencial. Metodología. Estudio cuasiexperimental con aplicación de una encuesta de satisfacción a internos de pregrado y propuesta de intervención educativa para asegurar la formación integral. Resultados. De 12 dimensiones investigadas en la encuesta, dos mostraron insatisfacción en más del 75 % de los casos; cinco revelaron satisfacción entre el 50 y 80 % y otras cinco, mayor al 80 %. Se propuso una estrategia innovadora de intervención, sustentada en principios éticos, para fortalecer la formación del estudiante a este nivel. Conclusiones. De acuerdo al enfoque del Derecho a la Educación en las Unidades Médicas, se propuso, aprobó e instaló el “Comité de Ética en el espacio Docente-Asistencial”, para garantizar el derecho a la educación en esta área.
 
Ensuring the Right to Medical Education: A teaching-care intervention to improve of undergraduate internship´s satisfaction
Abstract: Context. The teaching-care area is a training outside the university classrooms area where undergraduate internship must develop integrally. Objective: To implement an intervention proposal that guarantees the education rights in the teaching healthcare area. Methodology. Quasi-experimental study with the application of a satisfaction survey to undergraduate interns and a proposal for an educational intervention to ensure comprehensive training. Results. Of 12 dimensions investigated in the survey, two showed dissatisfactions in more than 75 % of cases; five revealed satisfactions between 50 and 80 % and another five, greater than 80 %. An innovative intervention strategy, based on ethical principles, was proposed to strengthen student training at this level. Conclusions. In accordance with the approach of the Education rights in the Medical Units, the "Ethics Committee in the Teaching-Assistance Space" was proposed, approved and installed to guarantee the education rights in this area.
Variación del caudal del río Pixquiac, Veracruz, México
Authors: Menchaca Dávila Socorro , Gutiérrez Martínez Rafael , Lozano-Laez David , Ortiz-Juan José Eduardo
Published: January 2024

Se presentan los metadatos de carácter diacrónico correspondientes al río Pixquiac, ubicado en la microcuenca del mismo nombre; así como la metodología utilizada y la información que contextualiza la compleja problemática sobre la disponibilidad del agua en dicho contexto.
 
Variation of the flow of the Pixquiac river, Veracruz
Abstract
The diachronic metadata corresponding to the Pixquiac river, located in the micro-basin of the same name, are presented; as well as the methodology used and the information that contextualizes the complex problem of water availability in that context.
Diversidad y conservación de orquídeas comercializadas en Tenango, Puebla, México
Authors: Velázquez Juárez Zuny Berenice , Alanís Méndez José Luis , Lozano Rodríguez Miguel Angel , Raya Cruz Blanca Esther
Published: January 2024

La familia Orchidaceae incluye especies protegidas en México que son comercializadas de manera ilegal. El objetivo de la investigación fue identificar y registrar las orquídeas silvestres comercializadas en el mercado Isabel Díaz de Castilla localizado en Tenango de las Flores, Puebla.  Se aplicaron encuestas durante un año a los comerciantes para recolectar los datos de las especies comercializadas. Se registraron 137 especies distribuidas en 60 géneros como Epidendrum, Prostechea  y Encyclia. El 85 % de las especies fueron de hábito epífito que provienen mayormente de los estados Chiapas, Oaxaca y Veracruz. Se identificaron especies comercializadas incluidas en la categoría de riesgo en peligro de extinción. Se llevó a cabo un Taller de planeación participativa con comerciantes y sectores representativos para identificar problemáticas y propuestas. Los resultados obtenidos sientan una base para estudios futuros que logren incidir en la comercialización legal y propuestas para el manejo y conservación de las orquídeas.
 
Diversity and conservation of traded orchids in Tenango, Puebla, Mexico
Abstract: The Orchidaceae family includes protected species in Mexico that are illegally traded. The aim of the research was to identify, and record commercialized native orchids in the Isabel Díaz de Castilla market located in Tenango de las Flores, Puebla. Surveys were applied to merchants for a year to collect data about the species traded. 137 species were recorded distributed in 60 genera such as Epidendrum, Prostechea and Encyclia. 85% of the species were epiphytic, mostly from the states of Chiapas, Oaxaca, and Veracruz. Traded species that are included in the risk endangered category were identified. A participatory planning workshop was held with merchants and representative sectors to identify challenges and proposals. The results obtained lay a basis for future studies that may influence the legal commercialization and proposals for the management and conservation of orchids.
Hypertrophic pyloric stenosis in a toddler: An atypical presentation in Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, Nigeria
Authors: Sunday Edward Sylvester , Henry Anyabolu Chineme , Sunday Aderibigbe Adeniyi
Published: January 2024

Gastric outlet obstruction resulting from hypertrophic pyloric stenosis typically manifests in early infancy and seldom occurs after this period. The case is a 14-month-old toddler with multiple episodes of nonbilious, projectile vomiting with persistent hunger, and progressive weight loss for three weeks. The symptoms were preceded by ingestion of a water-based herbal concoction. His barium meal and abdominal ultrasonographic findings were diagnostic of hypertrophic pyloric stenosis (HPS), following which he had an initial pyloromyotomy, which failed before he later had pyloroplasty. The patient was subsequently discharged home four days after the second surgery and has remained stable since then.

Although hypertrophic pyloric stenosis is uncommon beyond early infancy, it should be suspected in toddlers with persistent postprandial vomiting that is projectile and nonbilious. Early diagnosis is essential to limit malnutrition as well as other complications associated with HPS.
Pengembangan Model Inovasi dan Kreativitas Keilmuan Pendidikan Islam Anak Usia Dini
Authors: Kurniawan Heru , Fakhrudin Asef Umar
Published: January 2024

One of the important tasks of the study program is to carry out educational innovation and creativity. This research was conducted to find a model for developing scientific innovation and creativity in the study program. The research method used is field research in which the data is identified through interviews, documentation, and observation. The results of the research are First, PIAUD Study Program students realize the importance of scientific innovation and creativity in early childhood education because it is based on the scientific reality of early childhood education that requires creativity, the demands of institutional work that want creative graduates, and scientific opportunities in early childhood education that have market opportunities. good to develop. Second, the model for developing scientific innovation and creativity in early childhood education is carried out through intensive collaboration between lecturers and students which is realized by institutional mentoring of lecturers with the PIAUD Studio community which is established and developed according to students' interests and talents in the scientific field of early childhood education. With this model, PIAUD Study Program students have good creativity and innovation as evidenced by various achievements at the national level in innovation and creativity competitions for early childhood education students.
FORCED OSCILLATION OF NONLINEAR IMPULSIVE NEUTRAL DIFFERENCE EQUATIONS OF SECOND ORDER
Authors: A.TRIPATHY A.TRIPATHY , G.CHHATRIA G.CHHATRIA
Published: January 2024

Inthiswork,wepresentsufficientconditionsfortheoscillationofaclassof forcedsecondorderneutral impulsivedifferenceequationswithdeviatingargumentsand fixedmomentof impulseeffect. Furthermore,weprovetheexistenceofanonoscillatory solutiontotheaforementionedproblemusingKrasnosel’skii’sfixedpoint theorem. To demonstrateourfindings,weprovidesome illustrativeexamples.Wepointoutthatthe resultsarenewevenfortheneutraldifferenceequationswithout impulse.
Spin Polarized Electron Dynamics Enhance Water Splitting Efficiency by Yttrium Iron Garnet Photoanodes: A New Platform for Spin Selective Photocatalysis
Authors: Gajapathy Harshad , Bandaranayake Savini , Hruska Emily , Vadakkayil Aravind , Bloom Brian P. , Londo Stephen , McClellan Jackson , Guo Jason , Russell Daniel , Groot Frank M. F. de , Yang Fengyuan , Waldeck David H. , Schultze Martin , Baker L. Robert
Published: January 2024

This work presents a spectroscopic and photocatalytic comparison of water splitting using yttrium iron garnet (Y3Fe5O12, YIG) and hematite (α-Fe2O3) photoanodes. Despite similar electronic structures, YIG significantly outperforms widely studied hematite, displaying more than an order of magnitude increase in photocurrent density and a factor of two increase in Faradaic efficiency. Probing the charge and spin dynamics by ultrafast, surface-sensitive XUV spectroscopy reveals that the enhanced performance arises from 1) reduced polaron formation in YIG compared to hematite and 2) an intrinsic spin polarization of catalytic photocurrents in YIG. Ultrafast XUV measurements show a reduction in the formation of surface electron polarons compared to hematite due to site-dependent electronphonon coupling. This leads to spin polarized photocurrents in YIG where efficient charge separation occurs on the Td sub-lattice compared to fast trapping and electron/hole pair recombination on the Oh sub-lattice. These lattice-dependent dynamics result in a long-lived spin aligned hole population at the YIG surface, which is directly observed using XUV magnetic circular dichroism. Comparison of the Fe M2,3 and O L1-edges show that spin aligned holes are hybridized between O 2p and Fe 3d valence band states, and these holes are responsible for highly efficient, spin selective water oxidation by YIG. Together, these results point to YIG as a new platform for highly efficient, spin selective photocatalysis.
Graphormer-IR: Graph Transformers Predict Experimental IR Spectra Using Highly Specialized Attention
Authors: Stienstra Cailum , Hebert Liam , Thomas Patrick , Haack Alexander , Guo Jason , Hopkins Scott
Published: January 2024

Given that Infrared (IR) spectroscopy is a crucial tool in various chemical and forensic domains, improved in silico methods for predicting experimental spectra are needed due to the time and accuracy limitations of ab initio methods. We employ Graphormer, a graph neural network (GNN) transformer, to predict IR spectra using only Simplified Molecular-Input Line-Entry System (SMILES) strings. Our dataset includes 53,528 high-quality spectra with elements H, C, N, O, F, Si, S, P, Cl, Br, and I in five phases. When using only atomic numbers for node encodings, Graphormer-IR achieved mean test Spectral Information Similarity (SIS_μ) of 0.8449±0.0012 (n=5), surpassing the state-of-the-art Chemprop-IR (SIS_μ = 0.8409 ± 0.0014, n=5), with only 36% of the encoded information. Augmenting node embeddings with additional node-level descriptors in learned embeddings generated through a multi-layer perceptron improves scores to SIS_μ = 0.8523±0.0006, a total improvement of 19.7σ. These improved scores show how Graphormer-IR excels in capturing long-range interactions like hydrogen bonding, anharmonic peak positions in experimental spectra, and stretching frequencies of uncommon functional groups. Scaling our architecture to 210 attention heads demonstrates specialist-like behavior for distinct IR frequencies that improves model performance. Our model utilizes novel architectures, including a global node for phase encoding, learned node feature embeddings, and a 1D smoothing CNN. Graphormer-IR’s innovations underscore its value over traditional message-passing neural networks (MPNNs) due to its expressive embeddings and ability to capture long-range intra-molecular relationships.
Scalable Synthesis of Accordion-Like Multilayered Titanium Nitride in Air with Enhanced Performance as Catalytic Support for Oxygen Reduction
Authors: Zhang Shuren , Zhang Rui , Zhang Zhiyuan , Shi Kefan , Sun Genban
Published: January 2024

MXenes, recognized for their potential in energy storage and conversion, face significant challenges due to severe degradation in oxidative environments, which compromises their functional properties and limits further applications. To address this issue, we have developed an efficient pathway for transforming bulk titanium nitride (TiN) into multilayered titanium nitride (M-TiN). This method integrates the intrinsic properties of MXenes with the enhanced stability of TiN, offering a viable solu-tion to the pressing issue of oxidation stability for practical applications. The synthesis of M-TiN avoids the need for inert gas protection or chemical purification steps, making the process both practical and scalable. Notably, M-TiN exhibits inherent stability and improved performance, particularly in oxygen reduction reaction (ORR) when coupled with iron phthalocyanine (FePc). The oxidized surface layer of M-TiN enhances stability in corrosive and oxidative environments and facilitates the formation of Fe-O-Ti bonds, effectively modulating the spin states of the Fe center from low spin to medium spin, thereby improving ORR performance. M-TiN/FePc also delivers a greater power density of 270.31 mW cm-2 and better cyclability than Pt/C in a zinc-air battery. The simplicity of M-TiN's synthesis, along with the inherent properties of both MXene and TiN, positions it as a promising material for the future of energy conversion and storage technologies
Triplet Energy Transfer Mechanism in Copper Photocatalytic N– and O–Methylation
Authors: Hoving Martijn , Haaksma Jacob-Jan , Stoppel Anne , Chronc Lukas , Hoffmann Jonas , Beil Sebastian B.
Published: January 2024

Methylation reactions are chemically simple but challenging to perform under mild and non-toxic conditions. Photochemical strategies merged with copper catalysis enable rapid reaction times and broad applicability to N-heterocycles and aromatic carboxylic acids in high yields and good functional group tolerance. Detailed mechanistic investigations revealed a triplet-triplet energy transfer mechanism between hypervalent iodine reagents and readily available photosensitizers.
A concise review on copper catalyzed synthesis of α-ketoamides
Authors: Swain Sharada Prasanna , Gautam Amit
Published: January 2024

The α-keto-amides are essential building blocks for the synthesis of β-lactams and oxazolidinones. As it contains multiple reactive centers, it could be a suitable starting material for following reactions such as Michael addition reaction, Pictet–Spengler reaction, Mannich, Stetter reaction etc. There are many US FDA approved drug molecules which bear α-keto amid moieties, such as boceprevir, telaprevir, fostemsavir, varespladib etc. Copper-catalyzed synthesis of α-ketoamides from acetophenones, aryl acetic acids, alkynes, aryl acetaldehydes, α-keto acids, α-azido ketones, and 1,3-diketo compounds have been reported. This review describes the research articles (since the year 2012) related copper-catalyzed α-keto amides synthesis and mechanism of those reactions.
Enforcing Metal‒Arene Interactions in Bulky p-Terphenyl Bis(anilide) Complexes of Group 2 Metals (Be‒Ba): Potential Precursors for Low Oxidation State Alkaline Earth Metal Systems
Authors: Nguyen Dat , Helling Christoph , Evans Matthew , Jones Cameron
Published: January 2024

An extremely bulky p-terphenyl bis(aniline), p-C6H4{C6H4[N(H)TCHP]-2}2 (TCHP = 2,4,6-tricyclohexylphenyl) TCHPTerphH2, has been developed. Deprotonation of a less bulky analogue, DipTerphH2 (Dip = 2,6-diisopropylphenyl), with BePh2 affords the bimetallic system, [(BePh)2(-DipTerph)] 1. Treating either TCHPTerphH2 or DipTerphH2 with Mg{CH2(SiMe3)}2 gives the monomeric bis(anilide) complexes [Mg(ArTerph)] (Ar = Dip 2, TCHP 3) which display rare examples of eta-6-arene coordination to the metal centre. Treating 2 with THF leads to partial dissociation of the Mg···arene interaction, and formation of [Mg(DipTerph)(THF)] 4. Reactions of the bis(aniline)s with the group 2 metal amides [M{N(SiMe3)2}2] affords dimeric, isostructural compounds [{M(ArTerph)}2] (Ar = Dip, M= Ca 5, Sr 6, Ba 7; Ar = TCHP, M= Ca 8, Sr 9, Ba 10) which display intermolecular M···arene interactions in the solid-state. Computational studies have shown that the intramolecular M···arene interactions in models of the ether free metal bis(anilide) compounds are largely electrostatic in nature. Reductions of these compounds with alkali metals led to mixtures of unidentified products.
Harnessing Diazoketones for the Efficient Synthesis of 2,4-Disubstituted-(1,3)Thiazoles: Scalable and Versatile Approach to Important Heterocyclic Scaffolds
Authors: Pendiukh Viacheslav , Yakovleva Hanna , Stadniy Ivan , Pashenko Olexandr , Volovenko Olesia , Rozhenko Alexander , Ryabukhin Serhiy , Volochnyuk Dmytro
Published: January 2024

This study presents a scalable one-pot synthesis of 2,4-disubstituted-(1,3)thiazoles using diazoketones with thiosemicarbazide or thiourea, achieving high yields across various substrates. Thiazole derivatives demonstrate diverse biological activities (antibacterial, antiviral, anticancer, etc.) and applications in nanoelectronics and material science The suggested approach to their preparation highlights diazoketones as a chemically resilient alternative to traditionally used halogen ketones. This versatile synthesis method expands the scope of available 2,4-disubstituted-(1,3)thiazoles and opens broad opportunities for this class of compounds to contribute to advancements in medicinal chemistry and technology on the next level.
Inorganic Metal Thiocyanates
Authors: Cliffe Matthew
Published: January 2024

Metal thiocyanates are some of the earliest reported molecular framework materials and adopta diverse range of structures. This review describes the structures, properties and syntheses ofthe known binary and ternary thiocyanates. It provides a categorization of their diverse structures,and connects them to the structures of atomic inorganic materials. In addition to this description ofcharacterized binary and ternary thiocyanates, the review summarizes the state of knowledge forall other binary metal thiocyanates. The review concludes by highlighting opportunities for futurematerials development.
A SYSTEMATIC REVIEW ON IMPACT OF COVID-19 ON AGRICULTURAL PRODUCTIVITY, FOOD SECURITY AND RURAL LIVELIHOODS IN BANGLADESH
Authors: Rana Md. Masud , Rana Sohel , Rahaman Habibur , Rahaman Moklasur
Published: January 2024

Due to the COVID-19 pandemic, the world is facing severe economic challenges as it has slowed down human activities all over the world. COVID-19 spread rapidly after the first occurrence of infection was identified on December 31, 2019 in China and it has massive consequences on the health and livelihoods of the people of developing country es like Bangladesh. Food security and livelihoods are the most important aspects of agri-food systems. Besides human health concern, agricultural productivity is declined and food security is threatened globally. The basic aim of this paper is to understand the impacts of COVID-19 on agricultural productivity, food security and rural livelihoods in the context of Bangladesh. In Bangladesh, the farming activities and food supply process are greatly disrupted during the lockdown period of March to May 2020. The marginal and smallholder farmers aside by the rural areas in Bangladesh characterized by poor socio-economic condition are so much vulnerable during this crisis period. As a result, the rural poor farmers are the worst sufferers and faces a wide range of constraints throughout the process of crop cultivation, harvesting and marketing. Furthermore, the disruption of demand and supply chain causes low market price of agricultural products accounts for enormous economic loss of farmers. Therefore, the government of Bangladesh should act promptly and undertake combined initiatives involving all the concerned departments to mitigate the adverse effects of pandemic on agri-economy and food systems in Bangladesh.
NAVIGATING TRADE PROTECTIONISM: ITS IMPLICATIONS ON GLOBAL PROCUREMENT ACTIVITIES AND THE NIGERIA AND U.S. ECONOMY
Authors: Okogwu Casandra , Egbokhaebho Blessed Afeyokalo , Raji Ahmed , Daraojimba Chibuike , Alade Elesho Yusuf , Olalere Bolaji Ismail
Published: January 2024

This paper examines the implications of trade protectionism on Nigeria’s economy, with a particular focus on the sectors that heavily rely on exporting oil and gas products to the United States (U.S). Conversely, the U.S. occasionally resorts to restrictive measures to defend domestic industries against competitive Nigerian imports, primarily to conserve domestic employment and promote indigenous innovation The reliance on oil exports also poses challenges for Nigeria’s diversification efforts and its ability to develop other sectors of the economy. In recent years, there has been a growing trend of protectionist measures implemented by countries around the world, which has the potential to disrupt global supply chains and affect international trade. As a major oil exporter, Nigeria is vulnerable to global oil price changes, and any increase in trade barriers, such as tariffs or quotas, could have significant implications for the country’s overall economic growth. Historically, nations have adopted protectionist strategies to shield domestic industries, ensure economic stability, and protect employment. However, the rise in such measures in recent years has disrupted global supply chains, inflating procurement costs and imposing challenges to businesses that rely heavily on international sourcing. In navigating this convoluted trade milieu, the paper proposes a set of adaptive strategies. Emphasis is placed on the endorsement of regional trading blocs, advocating the benefits of memberships like ECOWAS for Nigeria and NAFTA/USMCA for the U.S. Such affiliations can serve as buffers against global protectionist winds. Furthermore, harnessing technology in procurement operations is underscored as a critical tool for businesses, aiding in the mitigation of potential disruptions and costs instigated by protectionism. In conclusion, while trade protectionism addresses certain immediate national concerns, its cascading effects on global procurement and specific bilateral relations mandate an informed, strategic response to ensure sustained economic growth and stability.
MITIGATING RISKS IN SMALLHOLDER SORGHUM (SORGHUM BICOLOR [L.] MOENCH) PRODUCTION SYSTEMS
Authors: C. Onuwa Godfrey
Published: January 2024

Risks in agriculture include those related to the production, market, credit, technological, institutional, and human resource sectors; hence, low output in sorghum production is attributable to poor management practices among smallholders in Nigeria. Therefore, this study evaluated sorghum production risks and mitigation measures in small-scale farms in Toro, Bauchi State, Nigeria. Primary data collected via multi-stage sampling from 145 respondents was evaluated utilizing Descriptive Statistics and Adoption Index. The results showed the prevalent sorghum production risks include low farm output (80.7%), post-harvest losses and limited technology (69.7%), flood/drought (61.4%), damage by birds (57.2%) and commodity price volatility (53.8%). Most (98.2%) of the respondents adopted mixed cropping; this practice promotes agro-crop diversity in smallholder farming systems. Other critical mitigation measures include farm enterprise diversification (80.0%), improved technology adoption (72.4%), fertilizer application (67.6%); agrochemical application (55.9%) and improved agronomic practices (51.0%). Additionally, the adoption index of 64.8% of farmers is 0.33 or less; this index of adoption of measures of mitigating production risks was low and relatively inadequate. Furthermore, the major constraints of adoption of measures of mitigating production risks include inadequate capital (94.5%), poor access to agricultural technology and credit (73.1%), cost of adaptation strategy (69.7%) and poor input supply (51.7%). Improved access to agricultural credit and farm capital; adequate input supply and technology transfer, smallholder capacity building, improved extension and financial services; and effective policy modifications are strongly recommended.
PROFITABILITY ANALYSIS OF UPLAND RICE PRODUCTION AMONG RESOURCE POOR FARMERS IN KADUNA STATE, NIGERIA: A STOCHASTIC PROFIT EFFICIENCY FRONTIER APPROACH
Authors: ALABI Olugbenga Omotayo, , BAYEI Joseph Dauda, , ALUWONG Jeremiah Samuel, , OLUMUYIWA Samson Abiade, , JOKOJO Philip Prekeme,
Published: January 2024

This research work analyzed profitability of upland rice production among resource poor farmers in Kaduna State, Nigeria: A stochastic profit efficiency frontier approach. A Multi-stage sampling technique was employed. Data of primary sources were collected through the use of a well-designed and a well-structured questionnaire from 150 sampled rice farmers. The outcomes show that the mean age of the sampled rice farmers was 42 years. The average farm size cultivated by the rice farmers was 3.18 hectares which show that the rice farmers were small scale farmers. The gross margin obtained was N522,188.16/ha with the gross margin ratio of 0.564 and the operating ratio of 0.392 indicating that rice production was a profitable enterprise. The significant factors influencing profit efficiency of rice production were: fertilizer cost (P<0.01), cost of hired labour (P<0.01), cost of chemical and herbicide (P<0.01), seed cost (P<0.01), transportation cost P<0.01 and cost of land and machineries (P<0.05). The constraints facing farmers in the course of rice production were: lack of credit facilities, inadequate extension agents, bad road infrastructures, lack of farm inputs, high cost of fertilizers, and high cost of labour. The study recommends that rice farmers should be provided with farm inputs like: improved seeds varieties, fertilizers, and agro chemicals at a subsidized price in order to improve productivity and profit efficiency, farm machineries like tractors, and irrigation facilities for dry season rice farming should be made avialable by Nigerian government to rice farmers to encourage mechanized farming all year round to ensure there is food security in the country.
DEVELOPMENT STRATEGY OF DISTINCTIVE CUISINE: AN EMPIRICAL STUDY OF OTAK-OTAK BANDENG FITRI MSME AGROINDUSTRY IN GRESIK REGENCY, EAST JAVA PROVINCE, INDONESIA
Authors: Zulfia Zalsadillah Marsya , Setiani Setiani
Published: January 2024

Indonesian cuisine is rich in variety, and Otak-otak bandeng is Gresik Regency’s distinct cuisine. This study aims to determine the internal and external factors and formulate a priority development strategy for the Otak-Otak Bandeng agroindustry. This research was conducted at the Otak-Otak Bandeng Fitri MSME, which is located in Kramat Inggil Village, Gresik District, Gresik Regency, East Java Province, Indonesia. Primary data was collected using a questionnaire and an in-depth interview with the owner and one worker of Otak-Otak Bandeng Fitri MSME and the staff of the Marine, Fisheries, and Animal Husbandry Department of Gresik Regency. SWOT and QSPM analyses were applied in this study. Based on the IE matrix, this business is located in cell V in a hold and maintain position with a strategy of market penetration and product development. Based on the highest TAS (6.82), the creation of a market and the construction of new stores in strategic locations are the priority strategies that Otak-Otak Bandeng Fitri MSME can implement.
PROSPECTS AND CHALLENGES OF RICE INDUSTRY IN THE PROVINCE OF LAGUNA TOWARDS SUSTAINABLE MARKETING AND INNOVATIONS
Authors: A. Pelobello Ma. Prances , I. Maghirang Carolyn , Jito Benilda , P. Pisano Romanie , R. Lalas Eduardo
Published: January 2024

This study presents the challenges of the Philippine rice industry and that of Laguna Province where actionable solutions are drawn toward sustainable marketing and innovations. Secondary data were gathered, and a descriptive type of research was utilized. The study of showed that majority of the rice farmers in Laguna are between the ages of 51 to 70 years old, about half of them have either elementary education or did not have any formal education. Majority of farmers in Laguna operate small scale farmlands of 3 hectares or less who are mostly leasehold tenants, and their income are not enough for their daily expenses. The study showed that there are too many middlemen between the rice farmers and the end consumers. Various sources explain that government and farmers’ associations have the capability to assist farmers and improve the rice distribution system of Laguna and the country. This study concludes that the young Filipino generation should become agricultural entrepreneurs, taking advantage of technology and government support. This study recommends that the government develop a comprehensive plan to help farmers and improve rice distribution system while strengthening farmer associations and cooperatives.
MOLECULAR DYNAMICS SIMULATION OF THE VISCOSITY AND THERMAL CONDUCTIVITY OF AL2O3-H2O NANOFLUIDS
Authors: Yan Yaya
Published: January 2024

This research investigated Al2O3-H2O nanofluids’ conduction of heat and viscosity using molecular dynamics method. For nanofluids, consequences of the nanoparticles’ volume fraction, temperature, size, and shape were studied. EMD computed the Al2O3-H2O nanofluid viscosity, while NEMD calculated the thermal conductivity. The findings indicated the sensitivity of the nanofluid to temperature and volume fraction variations. Alongside rising volume fraction, viscosity and conduction of heat likewise rise. When the temperature rises, the viscosity will decrease, and the thermal conductivity will increase. And the variation trend is the same as the experimental value. At the same temperature, the particle size of the nanoparticles becomes smaller, the specific surface area of the particles becomes larger, and the viscosity and thermal conductivity of the nanofluids become larger. And get the shape of the nanoparticles at the time of low volume fraction of greater effects on the viscosity and thermal conductivity of nanofluids, but in the case of high-volume fraction, volume fraction increases nano fluid viscosity and thermal conductivity coefficient is bigger.
Falls at home: hospital admissions in a health region of Aotearoa New Zealand
Authors: Simpkins Ciaran , Soysa Ishani , Christey Grant
Published: January 2024

aim: To report on the descriptive epidemiology and costs of trauma admissions to the Te Manawa Taki Trauma System (TMT) hospitals in Aotearoa New Zealand following falls at home. methods: A retrospective, observational study was conducted using data from the TMT trauma registry to identify patients of all ages who presented following falls at home from 2012 to 2022. This study reports on incidence of Fall Related Injuries (FRIs) that occurred at home with regard to age, gender, ethnicity, Injury Severity Score (ISS), injury characteristics and direct cost to TMT facilities. results: Searches identified 13,142 events to the TMT trauma system following falls at home. Most events were classified as non-major trauma. There were statistically significant relationships between gender, ethnicity and district, and ISS category. There were two distinctive age band incidence peaks: ≤9 years and 60+ years. Males were more likely to sustain major trauma. The most common cause was fall on the same level from slipping, tripping and stumbling. The average length of stay per event was 5.5 days. The average cost per event was NZ$9,792. conclusions: The study has identified the demography, injury types, risk factors and outcomes for FRIs that occurred in the TMT region of Aotearoa New Zealand. The volumes and costs of injury represent a significant burden on the health system, individuals and communities. More detailed understanding of causative factors will allow targeting of prevention strategies to address high risk activities and demographic groups.
ANALISIS PRODUKTIVITAS PEKERJA DENGAN METODE TIME STUDY PADA PEKERJAAN KOLOM (STUDI KASUS PROYEK REHABILITASI PASAR JOHAR KOTA SEMARANG)
Authors: Sandi Cahyo Kurnia , Cahyono Ndaru , Husodo Ibnu Toto , Permata Suwandi Putri Anggi
Published: January 2024

Produktivitas pekerja menentukan keberhasilan pelaksanaan jadwal proyek konstruksi, karena berdampak kepada kesesuaian antara perencanaan jadwal konstruksi dengan progres pekerjaan di lapangan. Oleh karena itu, pekerjaan kolom dan cendawan yang merupakan salah satu aktivitas kritis dalam pembangunan rehabilitasi tersebut perlu dianalisis produktivitas pekerjaannya. Tugas akhir ini bertujuan untuk menganalisis produktivitas pekerja pada pekerjaan kolom dan cendawan dan mencari faktor apa saja yang dapat mempengaruhi produktivitas pekerja pada proyek pembangunan Rehabilitasi Pasar Johar Kota Semarang. Perhitungan dilakukan dengan metode time study. Metode time study adalah metode pengukuran produktivitas tenaga kerja di lapangan dengan cara menentukan standard time suatu pekerjaan. Standard time diperoleh dari pengamatan. Pada pengamatan akan diukur nilai basic time yang akan diolah menjadi standard time, dan digunakan untuk menghitung nilai produktivitas. Dari hasil perhitungan diperoleh nilai produktivitas pekerja pada pekerjaan chipping kolom dan chipping cendawan adalah 7,36 m2/OH, dan 6,65 m2/OH. Untuk nilai produktivitas pada pekerjaan penulangan kolom dan cendawan adalah 42,81 kg/OH, dan 21,87 kg/OH. Sedangkan produktivitas pada pekerjaan bekisting kolom dan cendawan adalah 14,47 m2/OH dan 5,16 m2/OH. Untuk produktivitas pada pekerjaan grouting kolom dan cendawan adalah 0,41 m3/OH, dan 0,36 m3/OH, dan pekerjaan pekerjaan pemasangan Fibre Reinforced Plastic (FRP) kolom dan cendawan adalah 4,40 m2/OH dan 5,70 m2/OH. Dari hasil analisis produktivitas menentukan bahwa letak material dan tempat pengerjaan, jumlah pekerja, relaxation allowances, alat dan material yang digunakan adalah faktor-faktor yang mempengaruhi produktivitas pekerja pada pekerjaan kolom dan cendawan.