bluuebunny/crossref_metadata_2025 huggingface dataset:
Los estudios sobre deporte y masculinidades en Argentina. Itinerarios, contextos y preguntas
Authors: Branz Juan Bautista
Published: December 2023

La relación entre las ciencias sociales y los estudios sobre masculinidades y deporte en Argentina es interdisciplinaria y ha experimentado algunas transformaciones a lo largo del tiempo. Esta interacción se destaca por su relación con la agenda política y social del país, así como por su influencia en la consolidación del campo académico especializado en estudios sociales del deporte. El propósito fundamental de este artículo radica en explorar el desarrollo de las preguntas fundamentales, las temáticas prominentes y los desafíos analíticos que han delineado la investigación sobre masculinidades en el contexto deportivo, en el seno de las ciencias sociales argentinas. Una atención especial se concede al seguimiento del recorrido intelectual que ha experimentado esta línea de estudios desde sus inicios en la década de 1980 hasta la actualidad. Es así que se pretende una sistematización de los trabajos de tesis de grado y posgrado producidos en universidades públicas argentinas referidas al problema analizado, para pensar entre los desafíos propios del campo académico y las urgencias de la agenda político-social en Argentina.
Princípios pedagógicos para a aprendizagem significativa dos jogos esportivos coletivos
Authors: Ristow Leonardo , Backes Ana Flávia , Brasil Vinicius Zeilmann , Arantes Luciane Cristina , Ramos Valmor
Published: December 2023

O processo de ensino e aprendizagem dos jogos esportivos coletivos deve envolver o desenvolvimento de habilidades cognitivas por meio da aprendizagem de conceitos ou princípios táticos. A compreensão tática nestes esportes ocorre pela intervenção pedagógica que enfatize a assimilação de conceitos ou princípios táticos, promovida pela aprendizagem significativa. Diante desse contexto, o objetivo deste ensaio teórico é apresentar princípios pedagógicos para a aprendizagem significativa nos jogos esportivos coletivos. Para tanto, são apresentados os pressupostos para aprendizagem significativa com base em obras clássicas da Psicologia cognitiva e da Psicologia educacional. Posteriormente são apresentados os Princípios pedagógicos a aprendizagem significativa dos jogos esportivos coletivos partir da relação entre as obras clássicas e estudos empíricos da Pedagogia do Esporte, a saber: estabelecer relação entre o novo conhecimento e o conhecimento prévio, oportunizar atividades potencialmente significativas e auxiliar na transferência de conceitos. Acredita-se que os princípios propostos podem orientar a prática pedagógica e a formação de professores que atuam com o ensino dos jogos esportivos coletivos, como nortear futuros estudos a respeito do conhecimento de professores em relação a questões conceituais.
O profissional de educação física inserido no mercado de trabalho como personal trainer
Authors: Calesco Vinicius Almeida , Both Jorge
Published: December 2023

A graduação em Educação Física proporciona aos profissionais vasta área de atuação. Dentre elas a de personal trainer, que apresenta atributos específicos frente ao mercado de trabalho. Desta forma, buscou-se contextualizar as principais características da atuação do personal trainer, o que pode favorecer uma melhor análise do desenvolvimento de carreira deste profissional. De fato, o entendimento de tais características traz um olhar de como o profissional se encontra e se estabelece em seu ramo de atuação por uma perspectiva mercadológica. Pontos como a identificação de comportamentos profissionais e pessoais para que ocorra a manutenção e o seu reconhecimento podem proporcionar bases para uma possível antecipação e preparação de questões competitivas e de evolução sustentável.
Salmo 139 (Parte II)
Authors: Reyes Toso Carlos Julián
Published: December 2023

El presente artículo, apoyado en los frutos del estudio textual y retórico del Salmo 139 (138), se propone un detallado examen de los paralelismos e imágenes que utiliza el hagiógrafo para expresar su experiencia de Dios. Recorriendo segmento tras segmento se destacan los elementos de particular relieve teológico y antropológico que con especial belleza el salmista propone para la meditación y alabanza de Dios.
Comportamiento de visitantes en el Sendero Laguna Esmeralda, Ushuaia
Authors: Villegas Maria Lucrecia , Cárdenas Romero Silvina Adriana , Vereda Marisol
Published: December 2023

La actividad del senderismo en su desarrollo como práctica turística se relaciona con las tendencias turísticas actuales, vinculadas con la vuelta a la naturaleza, la mejora del bienestar psico-físico y la búsqueda de experiencias significativas. En base a este contexto, el presente estudio se centra en analizar el comportamiento de turistas en el Sendero Laguna Esmeralda, ubicado en las afueras de Ushuaia, provincia de Tierra del Fuego, A.I.A.S.  Se aplicó un enfoque metodológico cualitativo mediante la observación directa no participante, con un posterior análisis cuantitativo descriptivo. Los resultados demuestran que, en términos generales, los caminantes poseen una baja experiencia en senderismo y, sin embargo, generan una interacción positiva y altamente satisfactoria con el ambiente de montaña y sus componentes. Los hallazgos obtenidos resultan útiles para contribuir con la planificación y gestión, tanto del sendero de estudio como para la actividad de senderismo en la región.
Gainza, C. y Zúñiga, C. Cartografía de la literatura digital latinoamericana. Visualización, archivo y preservación de obras literarias digitales, 2018-2021
Authors: Botero Betancur Constanza
Published: December 2023

Reseña crítica del proyecto de las investigadoras Carolina Gainza y Carolina Zúñiga et al. Cartografía de la literatura digital latinoamericana. Visualización, archivo y preservación de obras literarias digitales. Laboratorio Digital de la Facultad de Comunicación y Letras de la Universidad Diego Portales.  https://www.cartografiadigital.cl/
Reseña de Davis, Rebeca Frost, Gold, Matthew K., Harris, Katherine D. y Sayers, Jentery. Digital Pedagogy in the Humanities: Concepts, Models, and Experiments, 2020
Authors: Colín Arce Alan
Published: December 2023

El proyecto Digital Pedagogy in the Humanities: Concepts, Models, and Experiments, ganador de los Digital Humanities Awards en 2020, es una colección curada de recursos para la enseñanza y la investigación en Humanidades Digitales. Organizados por palabras clave, los 573 recursos destacan aspectos teóricos y metodológicos, no solo herramientas, abordando cuestiones como género, visualización y brecha digital. Aunque la diversidad geográfica es limitada, su licencia CC-BY-NC permite adaptaciones futuras. El proyecto ha demostrado utilidad, especialmente durante la pandemia, al redefinir la pedagogía en Humanidades Digitales y visibilizar el trabajo docente. Su flexibilidad lo hace valioso para humanistas digitales en todo el mundo.
Kant
Authors: GONDIM Elnora , CHINGORE Tiago Tendai , PEREIRA Maria das Graças Moita Raposo
Published: December 2023

Nos Sonhos de um Visionário Explicados pela Metafísica, Kant faz críticas à especulação em nome da experiência e critica o conhecimento científico em nome da moral. Ele afirma que a causa, o efeito e a substância são relações fundamentais que não se pode captar nem intuir. Não é dada à razão capacidade para conhecer tais relações fundamentais.
A new method using deep transfer learning on ECG to predict the response to cardiac resynchronization therapy
Authors: He Zhuo , Si Hongjin , Zhang Xinwei , Chen Qinghui , Zou Jiangang , Zhou Weihua
Published: December 2023

Background: Cardiac resynchronization therapy (CRT) has emerged as an effective treatment for heart failure patients with electrical dyssynchrony. However, accurately predicting which patients will respond to CRT remains a challenge. This study explores the application of deep transfer learning techniques to train a predictive model for CRT response. Methods: In this study, the short-time Fourier transform (STFT) technique was employed to transform ECG signals into two-dimensional images. A transfer learning approach was then applied to the MIT-BIT ECG database to pre-train a convolutional neural network (CNN) model. The model was fine-tuned to extract relevant features from the ECG images and then tested on our dataset of CRT patients to predict their response. Results: Seventy-one CRT patients were enrolled in this study. The transfer learning model achieved an accuracy of 72% in distinguishing responders from non-responders in the local dataset. Furthermore, the model showed good sensitivity (0.78) and specificity (0.79) in identifying CRT responders. The performance of our model outperformed clinic guidelines and traditional machine learning approaches. Conclusion: The utilization of ECG images as input and leveraging the power of transfer learning allows for improved accuracy in identifying CRT responders. This approach offers potential for enhancing patient selection and improving the outcomes of CRT.
Rules for the construction of firebreaks along public roads in selected European countries
Authors: Tyburski Łukasz , Szczygieł Ryszard
Published: December 2023

Firebreaks are one of the protective measures used to safeguard forests in case of fire. Their purpose is to limit the possibility of fire spreading. This article describes how these protective measures are implemented along public roads in selected European countries. Based on the information gathered, it was found that there is a wide variety of approaches to firebreaks’ construction, mostly due to different climatic and geomorphological conditions that influence the overall risk of forest fires. The forms of firebreaks used in Europe along public roads are either a mineralised belt (without vegetation) or a cleared belt of materials that are particularly susceptible to ignition and fire spread. Methods combining both are also used.

In Poland, there is a Type A belt, that is, a 30-m-wide belt at the border of a roadway or a facility that is free of dead trees, lying branches and felled or broken trees. In the absence of pan-European rules on preventive measures to protect forests from road fires, it might be helpful to establish a set of best practices that could assist in the revision of guidelines in individual countries.
Enhancing PV Systems with Intelligent MPPT and Improved control strategy of Z-Source Inverter
Authors: Bettahar Fares , Sabrina Abdeddaim , Achour Betka
Published: December 2023

The Improved Z-Source Inverter (IZSI) has gained attention in the photovoltaic industry for its ability to boost PV voltage with a single-stage topology, simplifying system design and reducing costs. However, research on integrating IZSI into PV systems, particularly regarding the Maximum Power Point Tracker (MPPT) and IZSI control strategy, is limited. This study proposes an Intelligent Improved Particle Swarm Optimization (IPSO) algorithm as an MPPT method for PV systems under constant and varying irradiance conditions. The IPSO algorithm is compared to the FPA, CSA, and traditional MPPT algorithm (PSO), and the results demonstrate that IPSO outperforms all algorithms in terms of speed, efficiency, and convergence in finding the Maximum Power Point (MPP). Two methods, Simple Boost Control (SBC) and Maximum Constant Boost Control with Third Harmonic Injection (THIMCBC), are employed to control IZSI. Simulation results using MATLAB-Simulink show that both strategies successfully find and track the MPP, but THIMCBC exhibits superior voltage-boosting performance compared to SBC. Overall, the proposed IZSI topology with the IPSO MPPT method and THIMCBC IZSI control strategy offers several advantages, including improved voltage boost ability, reduced z-source capacitor voltage stress, inherent inrush current limitation, and cost-effectiveness. These advantages make the proposed system a promising solution for photovoltaic systems.
EFEKTIFITAS LATIHAN WALLPASS TERHADAP KETEPATAN PASSING DALAM SEPAK BOLA ATLET U12 SSB TALENTA ACEH FOOTBALL ACADEMY
Authors: Is Zulheri , Hariansyah Septi , Irwandi Irwandi
Published: December 2023

Football is a team game in which two teams compete against each other involving physical, technical, tactical, and mental elements. This study aims to examine the influence of wallpass training on the accuracy of passing in extracurricular football activities for athletes of SSB Talenta Aceh Football Academy. This study uses an experimental method with a one group pretest posttest design. The sample in this study consists of 18 students who participate in extracurricular football activities. The research results show that there is an average for the pretest score of 6.05 and the posttest score of 7.83. The median middle value for the pretest score is 6 and the posttest score is 7. The mode for the pretest score is 6 and the posttest score is 8. The standard deviation for the pretest score is 0.801 and the posttest score is 0.708. Based on the results of the normality test data in the table above, it shows that the pretest has a result of 0.062 and the posttest has a result of 0.040, so it can be interpreted that the research data is normally distributed. The average results of the pre-test and post-test or to determine whether there is a significant effect on wallpass training. From the t-test results, it can be seen that the t-value is 3.738 and the t-table is 2.131, indicating a significant difference between the pre-test and post-test. Therefore, the alternative hypothesis Ha stating that there is a significant effect of wallpass training on passing accuracy is used as a training to improve passing accuracy
PENGARUH LATIHAN LADDER DRILL TERHADAP KELINCAHAN
Authors: Ramdhani Rildan
Published: December 2023

Tujuan dari penelitian ini adalah untuk memperoleh informasi tentang Pengaruh Latihan Ladder Drill Terhadap Kelincahan pada atlet PB. Jaya Adinata Kabupaten Ciamis. Metode penelitian yang digunakan adalah metode eksperimen. Populasi dalam penelitian ini adalah Persatuan Bulu tangkis Jaya Adinata Kabupaten Ciamis dengan jumlah 20 orang dengan pengambilan sampel yang digunakan adalah teknik purposive sampling yaitu mengambil sampel yang ditentukan atau dibutuhkan oleh peneliti (Usia anak 11-12 Tahun) Berdasarkan hasil pengolahan data dengan uji statistik, ternyata secara empirik hasil penelitian ini menunjukkan bahwa Latihan Ladder Drill berpengaruh secara berarti terhadap peningkatan Kelincahan pada atlet PB. Jaya Adinata Kabupaten Ciamis. Berdasarkan hasil penelitian ini, penulis menyarankan kepada berbagai pihak yang terkait dengan bidang keolahragaan, khususnya dengan cabang olahraga Bulu tangkis, bahwa hendaknya selalu berupaya meningkatkan kelincahan, karena kelincahan sangat diperlukan oleh Footwork Bulu tangkis terutama untuk menguasai lapangan daerah sendiri. Kata Kunci : Latihan Ladder Drill, Kelincahan
Factors of cultural genesis in the Southern Urals in the Late Middle Ages and Modern Times (based on archaeological materials of the Republic of Bashkortostan)
Authors: Akhatov Al'bert Tagirovich
Published: December 2023

The object of the study is cultural genesis in the Southern Urals in the Late Middle Ages and Modern Times. The subject of the study is the factors influencing its development, which are considered through the prism of studying the archaeological material obtained during reconnaissance work on the monuments of the XVI – early XX centuries. This problem was not the object of special study. At the same time, its solution, on the one hand, fills in the gaps in the analysis of the processes of cultural genesis in the region as a whole, and on the other hand, contributes to the study of the peculiarities of the ethnocultural development of individual ethnic groups living here in the past. The theoretical basis of the research is the researches of Russian scientists in the field of cultural genesis, containing conceptual and theoretical developments. The information base of the study was the factual material on the problem under study, obtained during archaeological research on the territory of the Republic of Bashkortostan, including by the author himself, interdisciplinary and systematic approaches were used in the work for a comprehensive analysis of the designated problem, theoretical modeling, generalization, comparative historical, comparative typological methods were also used in the work. The scientific novelty of the study is due to the fact that for the first time the factors of cultural development in the Southern Urals in the Late Middle Ages and Modern Times were systematized and analyzed, which were considered in the context of the archaeological direction of cultural genesis research. It was revealed that the development of culture in the Southern Urals in the XVI – early XX centuries was influenced by both external (natural-geographical, anthropogenic, colonization, etc.) and internal (ethnic, religious, etc.) factors, which are recorded to varying degrees by the cultural layers of urban and rural settlements, fortifications and factories, cemeteries , etc. At the same time, speaking about the factors of cultural genesis, it should be borne in mind that they are so closely interrelated that it is often difficult to determine whether a change in culture is the result of the influence of one or another factor or several at the same time.
The Mediation Effect of Customer Satisfaction on The Relationship Between Service Marketing Mix, Service Orientation, and The Service Quality and Customer Loyalty:
Authors: Mohammed Zrar M. , Haji Serwan L. , Qadar Abdulkhaleq N.
Published: December 2023

This study examines the mediation effect of customer Satisfaction on the relationship between service marketing mix, service orientation, service quality, and customer loyalty using a case study of clients of a mobile phone carrier in In Iraq Kurdistan Region.. In this study, the product categories of mobile phone services, which have a variety of items on the market, used. The mobile phone service provider's goods for mobile phone services with various characteristics were the research objects in this study. In 2020, the research sample included all Erbil-resident mobile phone users. The population in this study was unbounded because it was impossible to determine the exact number of clients. Two hundred people took part in the survey. In this study, the structural equation model (SEM) analysis method was used, and the Partial least Squares (PLS) approach was used to analyze and test the study model. The application of the service marketing mix, service orientation, and service quality by the company shows that not all factors can immediately affect customer loyalty; instead, they must first affect customer satisfaction. This means that in order to build customer loyalty, a company must first understand what its customers need by considering the service marketing mix, service orientation, and service quality. This accomplished by tracking customer satisfaction levels. To increase customer satisfaction and loyalty to mobile phone carrier services, particularly in Erbil, the service quality of the mobile phone sector must be improved. This paper is distinguished by the following features: (1) the Sobel test-based mediation effect of customer satisfaction on the impact of service quality, service orientation, and the service marketing mix on customer loyalty; and (2) the research site mobile phone Services in Erbil, Kurdistan, where no previous studies investigated this connection.
A Semantic Analysis of Quasi-Modals in VESAL 10:
Authors: Najim Sangar
Published: December 2023

English modal verbs (both central and quasi-modals) have more than one interrelated meanings. This flexibility in meanings belongs to the polysemous phenomenon, in which it exposes the diversity of meanings within the same lexeme. Due to the importance of using modals in academic writing, this paper aims at analysing fourteen quasi-modals (henceforth QM) in (VESAL 10)[1], in the shed of the polysemous view. In its conference proceedings book, twenty-one academic papers have been published. QMs have their own importance in the academic atmosphere. They indicate the author's attitude towards any statement within the text. The researcher verifies the hypothesis by presenting the results of the analysis. The current paper aims at identifying the most frequent polysemy of QMs, examining the meanings and the functions of QMs, and presenting a frequency range of QMs in (VESAL 10). The paper ends up with findings that are inferred from the results of the study, where the (be to, need, need to, want to, and have to) are the most frequent QMs, while the (have got to, be supposed to, be bound to etc.) are the least common, since they have recorded zero frequency. Nevertheless, the most frequent meanings of QMs are (necessity, logical necessity, temporal meanings and obligation).
پاراستنى یاسایی مافی ئاماژه‌ جوگرافییه‌كان بە پێی یاسای عێراقی و ڕێککەوتننامە نێودەوڵەتییەکان
Authors: محمود ڕێبوار مغديد , محمد بەشدار عبداللە
Published: December 2023

ئاماژە جوگرافییەکان کەوا لقێکن لە لقەکانی خاونداریەتی هزری بریتین لە کۆمەڵە ئاماژەیەک کە دادەندرێن لەسەر کەلوپەلەکان بە جۆرێک کەوا سەرچاوە جوگرافییەکانیان پیشان دەدات، ئەمەش کۆمەلێک تایبەتمەندی دیاریکراوی خۆی هەیە، هه‌رچه‌ند ئاماژه‌ جوگرافییه‌كان وه‌ك جیاكردنه‌وه‌ و ناسینه‌وه‌ى به‌رهه‌می شوێنێك هه‌ر له‌كۆنه‌وه‌ مرۆڤ به‌كاری هێناووە، به‌ڵام مێژووی ڕێكخستنى یاسایی بۆ بابه‌تى ئاماژه‌ جوگرافییه‌كان و داننان پێی وه‌ك مافێكی هزری جیاواز له‌ مافي‌ عه‌ینی مێژووێكی دووری نییه‌. ئاماژە جوگرافییەکان بە یەکێک لە گرینگترین ئامرازەکانی پارستنی بەرهەمە نیشتمانییەکان دادەندرێن، بۆیە پێویستە پاراستنی یاساییان بۆ بکرێت، یاسای عێراقی هەڵوێستی داوە لەسەر ئاماژەی جوگرافی بەڵام "تسمیات المنشأ"ی باس نه‌كردووه‌ لە کاتێکدا "تسمیات المنشأ" بە بەشێک دادەندرێت لە ئاماژه‌ى جوگرافی و پێویستە پاراستنی بۆ بکرێت. لەم ریڤیوو ئارتیکڵە هەوڵدراوە کەوا تێگە و تایبەتمەندییەکانی ئاماژە جوگرافییەکان لە یاسای عێراقی و ڕێکەوتنامە نێودەوڵەتییەکان بخاتەروو، وە دواتر ئاماژە بە مەرج و ڕێگا و هۆکارەکانی پاراستنی ئاماژە جوگرافییەکان بکرێت. لە کۆتایدا یەکێک لە گرینگترین ئەو دەرئەنجامانەی کە بە دەست گەیشتن بریتیە لەوەی کەوا ئەو بەرهەمانەی بە ئاماژەی جوگرافی جیادەکرێنەوە، داخوازی زیاتریان لەسەرە و هۆکارێکی بنەرەتییە بۆ گەشەپێدانی ئابووری وڵات، بۆیە پێشنیار دەکرێت کەوا پێویستە سالانە ڤیستیڤاڵ و پیشانگای تایبەت بە بەرهەمە ناوخۆییەکان ڕێکبخرێت، بە مەبەستی پیشاندانی سەرچاوەی بەرهەم هێنانیان و چۆنیەتی ئامادەکردنیان بۆ ئەوەی بتواندرێت لە پێشێلکارییە دەرەکییەکان بپارێزرێت.
Predictability of Tropical Cyclone Rapid Intensification based on Statistical Approach
Authors: Nga Pham Thi Thanh , Thang Van Vu , Ha Pham-Thanh , Nam Quang Pham , Hiep Van Nguyen
Published: December 2023

This study investigated the spatial and temporal characteristics of rapid intensification (RI) in the Vietnam East Sea (VES) and evaluated the predictability of RI using statistical methods. For the purpose of the RI study, this work focused on a dataset of TCs that reach storm level higher, or having a maximum intensity of at least 34 knots (kn) during their existence. The results show that the annual TC activity in the VES is characterized by a dominance of strong TCs (Category 12 and above) and a significant occurrence of RI-TCs accounting for 73.7% and 23% of the total respectively. Remarkably, RI-TCs were consistently observed in 26 out of the 31 years studied, with a tendency to occur during the latter months of the year. Additionally, approximately 20% of these RI-TCs underwent RI near the Vietnam Coastal region. Given the increasing demand for accurate RI forecasts, four probability models namely Linear Discriminant Analysis (LDA), Logistic Regression (LogR), Naïve Bayes Classifier (Bayes) and Ensemble, using predictors from the SHIPS dataset, are developed to evaluate the predictability of the RI forecast. Among the predictors used, thermodynamic factors such as COHC, vertical wind shear (SHRD) and current TC states (PER) play crucial roles in constructing the RI probability models. Verification indices such as POD, FAR, CSI and BSS, indicate significant improvements in RI forecasting over the VES when utilizing the probability models, especially with the ensemble method.
Optimizing the accuracy of flood extent mapping using multitemporal stack of Sentinel-1 SAR data with machine learning approach for Wardha River, Chandrapur District (India)
Authors: Pusdekar Prashant N. , Dudul Sanjay V.
Published: December 2023

Floods are the most common, destructive and frequently occurring natural disasters on the earth in terms of economic damages and affected lives. A flood can be an inconvenience or a catastrophic event, resulting in long-term economic and environmental consequences. Flood extent mapping identifies and delineates the areas that are inundated. The study focuses on the flood event of Wardha river near Chandrapur on 12th August, 2022. In this study, we proposed an ensemble averaging model (EAM) for optimizing the accuracy of flood inundation mapping that discriminates flood waters from the non-flood waters using stack of multitemporal Sentinel-1 satellite imagery. Sentinel-1 uses C-band microwave signals to measure backscatter from the Earth's surface with its synthetic aperture radar (SAR) sensor that can penetrate clouds and collects data regardless of weather conditions. The results of the proposed model were compared with other machine learning models such as SVM, RF and MLC. The result analysis reveals that the overall accuracy, Kappa coefficient (KC) and area under curve (AUC) values for the proposed model (OA = 98%, KC = 0.97, AUC = 0.986 for training and OA = 97%, KC = 0.96, AUC = 0.957 for testing dataset) outperformed the other models. The result may help people and town planners in identifying safe and risky areas in the study area.
Community based Residential Firefighting Strategy: A Case Study of Malang City
Authors: Heru Sufianto
Published: December 2023

Fires that occur in residential areas have a negative impact on the community, from both social and economic perspectives. In urban areas, where the high density of buildings and people is evenly distributed, the chances of loss of life and property are considerably high. Those changes are even higher in residential areas or villages located far from fire brigade access. The occupants should not wait for the assistance of the city fire brigade but should act to terminate the flame themselves to save their properties and lives. This study aimed to determine the awareness of fire safety measures in residential areas and fire safety behavior and the capability of residents to independently extinguish fires. A total of 122 participants participated in filling out an online questionnaire to find answers to possible strategies for handling fires in residential areas. Statistical analysis was carried out to see behavioral trends and some of the potential in the community to prevent fires in residential areas. This study discovered that the availability of water is mostly preferred for fighting fires in residential areas, that there is a lack of awareness of electrical as the primary source of fires and that a level of disbelief in the society’s ability to fight fires on their own. This study includes both individual and communal self-extinguishing strategies.
Prendre en charge des objets transparents de la classe de mathématiques pour mieux faire apprendre tous les élèves : distance et langage
Authors: Chesnais Aurélie
Published: December 2023

Certaines difficultés d’apprentissage résultent d’une insuffisante prise en charge, par l’enseignement, de certains objets de savoirs, et notamment des enjeux de savoir liés au langage. Nous présentons des outils conceptuels issus de la recherche pour penser ces enjeux, puis les résultats d’une expérimentation menée dans le cadre d’un travail collaboratif entre enseignants et chercheures en didactique des mathématiques qui montrent des effets d’amélioration des apprentissages d’élèves, y compris pour des élèves en difficultés.
Ultrafast Excited-State Dynamics of Luteins in the major light-harvesting complex LHCII
Authors: Pedraza González Laura Milena , Accomasso Davide , Cupellini Lorenzo , Granucci Giovanni , Mennucci Benedetta
Published: December 2023

Carotenoid pigments are known to present a functional versatility when bound to light-harvesting complexes. This versatility originates from a strong correlation between a complex electronic structure and a flexible geometry which is easily tunable by the surrounding protein environment. Here, we investigated how the different L1 and L2 sites of the major trimeric light-harvesting complex (LHCII) of green plants tune the electronic structure of the two embedded luteins, and how this reflects on their ultrafast dynamics upon excitation. By combining molecular dynamics and quantum mechanics/molecular mechanics calculations, we found that the two luteins feature a different conformation around the second dihedral angle in the lumenal side. The s-cis preference of the lutein in site L2 allows for a more planar geometry of the π-conjugated backbone, which results in an increased degree of delocalization and a reduced excitation energy, explaining the experimentally observed red shift. Despite these remarkable differences, according to surface hopping simulations the two luteins present analogous ultrafast dynamics upon excitation: the bright S2 state quickly decays (in ∼50 fs) to the dark intermediate Sx, eventually ending up in the S1 state. Furthermore, by employing two different theoretical approaches (i.e., Förster theory and an excitonic version of surface hopping), we investigated the experimentally debated energy transfer between the two luteins. With both approaches, no evident energy transfer was observed in the ultrafast timescale
Benchmarking Nitrous Oxide Adsorption and Activation in Metal-Organic Frameworks Bearing Coordinatively Unsaturated Metal Centers
Authors: Pitt Tristan , Jia Haojun , Azbell Tyler , Zick Mary , Nandy Aditya , Kulik Heather , Milner Phillip
Published: December 2023

Anthropogenic emissions of N2O, the third most abundant greenhouse gas after CO2 and CH4, are contributing to global climate change. Although metal-organic frameworks (MOFs) have been widely studied as adsorbents for CO2¬ and CH4, less effort has focused on the use of MOFs to remove N2O from emission streams or from air. Further, N2O activation would enable its use as an inexpensive oxidant for fine chemical synthesis. Herein, we identify features that contribute to strong binding and high uptake of N2O at coorinatively unsaturated metal sites in the M2Cl2(btdd) (M= Mn, Co, Ni, Cu; btdd2– = bis(1,2,3-triazolo[4,5-b],[4′,5′-i])dibenzo[1,4]dioxin) and M2(dobdc) (M = Mg, Mn, Fe, Co, Ni, Cu, Zn; dobdc4− = 2,5-dioxido-1,4-benzenedicarboxylate) series of MOFs. Combined experimental and computational studies suggest that N2O adsorption at open-metal-sites is primarily based on electrostatic interactions, rather than π-backbonding, causing MOFs with more Lewis acidic metal centers to be superior N2O adsorbents. As a result, Mg2(dobdc) demonstrates strong binding and record-setting N2O uptake (8.75 mmol/g at 1 bar and 298 K). Using density functional theory (DFT) to characterize reactive intermediates and transition states, we demonstrate that N2O activation to form a M(IV)-oxo species and N2 is thermodynamically favorable in Mn2(dobdc) and Fe2(dobdc) but appears to be kinetically limited in Mn2(dobdc). Our work lays a foundation for understanding N2O adsorption and activation in MOFs, paving the way for the design of promising next-generation materials for N2O capture and utilization.
Structural Order and Plasmonic Response of Nanoparticle Monolayers
Authors: Green Allison M. , Chang Woo Je , Sherman Zachary M. , Sakotic Zarko , Kim Kihoon , Wasserman Daniel , Milliron Delia J. , Truskett Thomas M.
Published: December 2023

Collective plasmon resonances in superlattice assemblies of metallic nanoparticles are influenced by nanoparticle attributes and assembly structure. Although grain boundaries and other structural defects are inherent to superlattices assembled in the lab, their impact on near- and far-field optical properties remains poorly understood. Here, we study variations in structural and optical properties of model 2D superlattices of spherical metallic nanoparticles, focusing on large-scale monolayers of approximately constant area fraction formed by different assembly rates. Our modeling addresses how disorder generates distributions of hot spot intensities and nanoparticle-level resonant frequencies. The highest intensities occur in narrow gaps between particle pairs aligned parallel to the field polarization. Despite the structural diversity of the monolayers investigated, we find the highest hot-spot intensity adjacent to a nanoparticle strongly correlates with the particle’s resonant frequency, though the introduction of realistic variability in nanoparticle dielectric parameters weakens the link. These trends hold for different nanoparticle compositions, and predictions are compared to experimentally prepared monolayers of tin-doped indium oxide nanocrystals. Though defectivity only modestly influences ensemble extinction peak frequency and surface-enhanced infrared absorption, increasing structural disorder broadens spectral lineshapes and boosts surface-enhanced Raman scattering enhancement factors. The magnitude of spectroscopic enhancement and the sensitivity of optical properties to local structural order depends primarily on dipole polarizability contrast. These results can help inform tolerances and tradeoffs relevant to designing materials and assembly protocols to achieve desired optical properties for applications, including sensitive molecular detection.
Production of Methane by Catalytic Decarboxylation of Methyl Formate as a Liquid Surrogate
Authors: De Riggi Nathan , Imberdis Arnaud , Nicolas Emmanuel , Cantat Thibault
Published: December 2023

Methane is a widely utilized molecule, primarily sourced from fossil fuels and it finds numerous applications in the energy sector. More sustainable sources of methane include the conversion of organic wastes or gaseous CO2. An alternative would be to use a sustainable C1 intermediate able to form methane. To this end, this work demonstrates the utilization of methyl formate as a liquid surrogate for methane, and its selective decomposition by catalytic decarboxylation. This reaction exhibited excellent yields, exceeding 90%, and the method can be expanded to produce several alkanes from alkyl formates.
Mathematical Derivation of Transporting Behaviors of Polymers in Micro-Screw Extrusion Molding
Authors: Tang Ruogu
Published: December 2023

This study derived the transporting behavior of polymers in micro-screw extrusion molding. First, the transporting of polymer solids (performed in the first zone of screw) was derived and discussed, then the transporting of polymeric melts (performed in the third zone of screw) was derived with a novel helix-cylinder model, the velocity, flow rate, shear rate and shear stress were investigated and discussed.
Dynamic and solid-state behaviour of bromoisotrianglimine
Authors: Scholes Abbie , Kershaw-Cook Laurence , Szczypiński Filip , Egleston Benjamin , Greenaway Rebecca , Slater Anna
Published: December 2023

Solid-state materials formed from discrete imine macrocycles have potential in industrial separations, but dynamic behaviour during both synthesis and crystallisation makes them challenging to exploit. Here, we explore opportunities for structural control by investigating the dynamic nature of a C-5 brominated isotrianglimine in solution and under crystallisation conditions. In solution, the equilibrium between the [3+3] and the less reported [2+2] macrocycle was investigated, and both macrocycles were fully characterised. Solvent templating during crystallisation was used to form new packing motifs for the [3+3] macrocycle and an unreported [4+4] macrocycle. Finally, chiral self-sorting was used to demonstrate how crystallisation conditions can not only influence packing arrangements but also shift the macrocycle equilibrium to yield new structures. This work thus exemplifies three strategies for exploiting dynamic behaviour to form isotrianglimine materials, and highlights the importance of understanding the dynamic behaviour of a system when designing and crystallising functional materials formed using dynamic covalent chemistry.
Versatile sulfidation of a metal-organic framework via heterolytic splitting of organo sulfides at distorted Zr-nodes
Authors: Wang Qining , Vornholt Simon M. , Melix Patrick , Formalik Filip , Chen Zhihengyu , Tufaro Luke M. , Liu Jian , Kramar Boris V. , Wang Zhiwei , Chen Lin X. , Snurr Randall Q. , Chapman Karena W. , Notestein Justin M. , Hupp Joseph T.
Published: December 2023

The sulfidation of metal oxides is a critical process to create catalysts for industrially relevant reactions. However, the exact sulfidation mechanism remains unclear. To investigate the sulfidation process through the heterolytic splitting of sulfur-containing molecules, we chose a structurally well-defined material, Zr-based metal-organic framework (MOF) NU-1000, as the model system. Sulfidation was achieved through thiol binding on thermally distorted Zr6 clusters. Key to the binding chemistry heterolytic S-H bond cleavage enabled by the presentation of inorganic frustrated Lewis-acid/Lewis-base pairs (FLPs) in the form of under-coordinated Zr(IV) sites and a terminal O(-II) site. In situ synchrotron based structural analysis, spectroscopic characterization, and computational studies showed that thiols bearing different functional groups interact with the distorted Zr6 nodes through dissociative adsorption, forming bridging Zr-S-Zr bonds while converting a terminal oxo to a terminal hydroxo. This study provides insights into the surface sites responsible for the sulfidation of metal oxide catalysts and offers a promising strategy for introducing S-bearing moieties to MOF scaffolds.
The Relationship Between Nomophobia with Physical Activity and Sleep Quality in Community-Dwelling and Non-Frail Older Adults
Authors: ÜNÜVAR Bayram Sönmez , GERÇEK Hasan , ŞAHBAZ PİRİNÇÇİ Cansu , CİHAN Emine , AYTAR Ayça , AYTAR Aydan
Published: December 2023

Objective: Lack of physical activity, sleep problems and nomophobia are serious problems in adults. This study aimed to investigate the relationship between nomophobia with physical activity and sleep quality in non-frail older adults living in the community.
Materials and Methods: The participants' fragility status was determined using the "Tilburg Frailty Indicator Survey," while nomophobia levels were assessed with the "Nomophobia Questionnaire," physical activity levels were measured using the "International Physical Activity Questionnaire-Short Form," and sleep quality was evaluated with the "Pittsburgh Sleep Quality Index (PSQI).
Results: A total of 158 participants, 73 (46.8%) male and 85 (53.2%) female, were included in the study. While 5 (3.2%) of the participants were not nomophobic, 153 (96.8%) had nomophobia. 29 (18.4%) of the participants had no sleep problems, and 129 (81.6%) had sleep problems. As a result of the analysis, a weak negative correlation (r: -0.338, p<0.001) was found between physical activity and nomophobia. A positive and negligible correlation was observed between use of sleep medication, daytime dysfunction sub-scales, total PSQI scores and nomophobia (r:0.167-r:0.193, p<0.05).
Conclusion: It was determined that as nomophobia increased in non-frail adult people, their physical activity levels decreased, and their sleep quality was negatively affected.
Perception and Usage of Telemedicine Among National Health Insurance Participants in Padang City
Authors: Roza Shelvy , Sari Ayulia Fardila
Published: December 2023

The existence of a policy on the use of telemedicine in health facilities is applied almost all over the world. In Indonesia, Padang is one city of the achievements in that the use of telemedicine services remains low, even after the implementation of regulations on telemedicine services. This study aimed to determine the perceived convenience and benefits of using telemedicine services among National Health Insurance participants through the Technology Acceptance Model (TAM). This study was a cross-sectional survey. The sample of this study consisted of 100 National Health Insurance respondents registered at a first-level healthcare facility. The samples were collected using consecutive sampling and online questionnaire sheets carried out for three months in 2021. The analysis includes univariate, bivariate, and multivariate analysis. The results showed that 55% of respondents had a high level of accessibility in getting health services by using telemedicine, 54% of respondents had a good experience related to telemedicine officer services, 94% of respondents had perceptions of illness exist positive, 89% of respondents said that they had a perception of ease in using telemedicine services, and 80% of respondents had a perceived the benefits of telemedicine services. The utilization of telemedicine was affected by accessibility (p=0.000), staff service (p=0.000), perceived ease of use (p=0.022), and perceived benefit (p=0.001). The multivariate analysis indicated that the officer service was the most influencing the use of telemedicine services (OR=3.669). Healthcare facilities should improve their service quality and apply a more accessible and more valuable service for patients as end users.
Revitalization of regular landscapes of the Arboretum exposition zone of the State Biotechnology University
Authors: Gololobov V. V. , Koval I. M. , Gololobova O. O.
Published: December 2023

Purpose. To substantiate the concept of revitalization of regular landscapes of the exposition zone of the dendrological park of the State Biotechnological University.

Methods. Field, laboratory, geoinformation, computer modeling (QGIS 3.28.3-Firenze 2022-08-31, Realtime Landscaping Architect 2023.02, Trial Free Version and Sketchup).

Results. The historical context of the creation of the arboretum, the agro-ecological status of the elements of soil fertility, its trace element status, the ecological-ameliorative and ecological-toxic state were studied. The selection of introducers was carried out for the 5A climatic zone of winter hardiness (USDA-zone). Geoinformation modeling of the studied space was carried out, relief isolines were created. A revitalization project of regular landscape compositions of the exposition zone of the dendrological park has been developed. Taking into account the soil and climatic conditions in the formation of plant compositions requires the use of introducers that do not require a high level of available nitrogen compounds, but respond well to an increased content of mobile phosphorus and potassium, do not lose decorativeness when grown without irrigation or with the use of minimal soil protective irrigation, with high resistance against diseases and pests and will serve to increase the biological diversity of the urban landscapes of Kharkiv and other cities of Ukraine located in the 5th winter hardiness zone (USDA zone).

Conclusions. It is proposed to preserve the approach proposed by the founders of the dendrological park, that is, to restore the decorativeness and expressiveness of plant compositions, but in the context of making nature-oriented decisions, to enrich this approach with an ecological feature.
The "Knyagynya" tract as a center for the preservation of the phytological identity of the Eastern Podillia
Authors: Mudrak O. V. , Berezovska R. L. , Mudrak G. V.
Published: December 2023

Purpose. To describe the phytodiversity of the "Knyaginya" Tract - a complex natural monument of national importance.

Methods. Field, cartographic, analytical, descriptive, comparative, expeditionary, bioindicative, statistical, systemic, biomonitoring.

Results. The diversity of phytocenoses of the "Knyaginya" Tract - a complex natural monument of national importance with an area of 53 hectares, located within the boundaries of the Pischanska settlement territorial community of the Tulchyn district of the Vinnytsia region - was established. The importance of the object of the nature reserve fund for the formation of the regional econetwork of Eastern Podillia was clarified. The species richness of various phytocenoses of the relatively small area of the studied object is substantiated. 527 species of higher vascular plants were identified, of which 440 are autochthonous and 87 are adventitious, which is 43.5% of the total phytodiversity of Eastern Podillia, which includes 1210 species. In terms of the number of species, the studied area is one of the most valuable reference areas of the region's plant gene pool.

Conclusions. In order to preserve the rare phytodiversity of Eastern Podillia, it is proposed to expand the boundaries of the complex natural monument "Knyaginya" Tract.
Geoecological assessment of forest landscapes as a basis for the evaluation of ecosystem services
Authors: Maksymenko N. V. , Voronin V. O. , Burchenko S. V.
Published: December 2023

Purpose. To study the use of geoecological assessment of forest landscapes as a basis for the assessment of ecosystem services to take into account the natural and anthropogenic conditions of their functioning.

Methods. The results of the geoecological assessment were translated into indicators of ecosystem services: provision and regulation.

Results. The geoecological assessment of forest landscapes was carried out on a model plot of the Vasyshchivske Forestry of Kharkiv Region, as representative for all forest landscapes of Kharkiv Region - watershed, valley, and beam-thrust. On the basis of the previously conducted geoecological assessment of the forest landscapes of the model area by the means of landscape and ecological planning, the indicator of the amount of ecosystem services to provide for medieval stands by species composition per 1 ha was determined. Thus, on the basis of the Analytical Portal of the state wood accounting system, it was determined that for 2022, the average value of wood by species composition for the Kharkiv region was determined. Thus, the value of the ecosystem service for providing wood is about 604.5 million hryvnias. In terms of unit area (1 ha), the indicator of the ecosystem service will be UAH 13,247/ha. The indicator of the value of ecosystem services for regulation, in particular of the carbon capacity for the model plot, was determined for medieval stands by species composition per 1 ha.

Conclusions. The proposed use of geoecological assessment based on the landscape-ecological approach provides an opportunity to take into account landscape conditions, the impact of anthropogenic activity, as well as the results of management decisions in nature management.