bluuebunny/crossref_metadata_2025 huggingface dataset:
Perbandingan Algoritma Machine Learning dalam Analisis Penyebab Penyakit Gagal Jantung
Authors: Kirono Aryo Sasi , Nataliani Yessica
Published: September 2024

Penyakit gagal jantung meningkat seiring perkembangan jaman dikarenakan maraknya pola hidup yang tidak sehat, tingkat obesitas, dan angka perokok. Gagal jantung adalah kondisi medis yang abnormal pada struktur atau fungsi jantung. Gejala yang biasa dialami oleh penderita meliputi sesak nafas, kelelahan, dan penurunan tingkat aktivitas. Kemajuan teknologi yang sangat pesat dapat membantu dalam menganalisis penyebab penyakit gagal jantung, salah satunya teknologi machine learning yang mampu dalam memprediksi dan mengklasifikasi pasien yang beresiko gagal jantung dan normal. Penelitian ini menggunakan tiga model machine learning dalam analisis penyakit gagal jantung yaitu Decision Tree, Random Forest, dan XGBoost Ketiga model ini sama – sama memiliki fitur yang dapat diterapkan untuk mengetahui penyebab penyakit gagal jantung yaitu feature importance atau tingkat kepentingan karena termasuk dalam tree based model. Data yang digunakan dalam penelitian berjumlah 918 pasien gagal jantung. Dengan menerapkan fitur tersebut, ketiga model menghasilkan ST Slope yaitu kemiringan naik dan turun ST saat berolahraga menjadi variabel tertinggi terhadap resiko penyakit gagal jantung dengan 39% pada model Decision Tree, 22% pada model Random Forest, dan 46% pada XGBoost.
Analisis Perbandingan Efektivitas Arsitektur Restful dan Arsitektur Grpc pada Implementasi Web Service
Authors: Yanuardi Muhammad Irsyad , Aminudin Aminudin , Faiqurahman Mahar
Published: September 2024

PT. Symmex Medical Indonesia beroperasi dalam sektor manufaktur peralatan medis, gigi, serta perangkat ortopedi dan prostetik, dengan kebutuhan mendesak akan layanan web yang sangat efisien dan efektif. Perusahaan dihadapkan pada tantangan kritis dalam memilih layanan web yang optimal berdasarkan parameter kinerja seperti waktu respons, ukuran respons, penggunaan CPU, throughput, dan waktu muat, dengan mempertimbangkan urgensi data real-time yang esensial. Penelitian ini mengadopsi pendekatan eksperimental dengan uji coba dan analisis komparatif performa antara RESTful API dan gRPC, yang dilaksanakan menggunakan Postman dan JMeter sebagai alat pengujian. Temuan dari penelitian ini menunjukkan bahwa gRPC menawarkan keunggulan signifikan dibandingkan RESTful API dalam metrik kinerja kunci. gRPC menunjukkan konsistensi yang lebih tinggi serta waktu respons yang lebih cepat, berkisar antara 20-22 detik untuk berbagai ukuran data, sementara RESTful API memperlihatkan variasi waktu respons yang lebih besar, yakni antara 30-90 detik. Selain itu, penggunaan CPU oleh gRPC cenderung lebih stabil dan tidak mengalami peningkatan signifikan seiring dengan bertambahnya volume data, berbeda dengan RESTful API yang memperlihatkan lonjakan signifikan dalam penggunaan CPU pada skala data yang lebih besar. Dalam konteks throughput untuk pengolahan 1000 data, gRPC juga menunjukkan kecepatan pemrosesan yang lebih tinggi, dengan waktu sekitar 10 detik, dibandingkan dengan RESTful API yang menunjukkan waktu yang lebih stabil di sekitar 20 detik. Waktu muat data dengan gRPC tetap konsisten dan efisien, yakni sekitar 20 detik, sementara RESTful API menunjukkan peningkatan yang substansial dalam waktu muat seiring dengan peningkatan ukuran data. Secara keseluruhan, hasil penelitian ini menegaskan bahwa gRPC menawarkan performa yang lebih andal dan efisien dibandingkan RESTful API. Berdasarkan temuan ini, penelitian merekomendasikan penggunaan gRPC sebagai solusi komunikasi yang lebih unggul untuk aplikasi yang membutuhkan performa tinggi, efisiensi data, dan skalabilitas yang optimal.
Physics-based Modeling in the New Era of Enzyme Engineering
Authors: Jurich Christopher , Shao Qianzhen , Ran Xinchun , Yang Zhongyue
Published: September 2024

Enzyme engineering techniques optimize enzymes to synthesize value-added chemicals, degrade environmental pollutants, and improve therapeutics. The field is entering a new era characterized by the increasing integration of computational strategies. While bioinformatics and artificial intelligence (AI) have been extensively applied to accelerate the screening of function-enhancing mutants, physics-based modeling methods, such as molecular mechanics and quantum mechanics, serve as essential complements in engineering objectives where setting up high-throughput screening is difficult or where a deep understanding of unknown physical principles is crucial. In this perspective, we discuss the enormous, untapped potential of physics-based modeling in guiding the next step of computational enzyme engineering. We first explore the paradigm of physics-based design principles wherein insights from natural, efficient enzymes are applied to recommend beneficial mutations in silico. We examine current development of high-throughput molecular modeling workflows that aid enzyme engineering campaigns through large-scale virtual applications of design principles. We then emphasize how physics-based modeling empowers AI techniques through enriching data expressiveness and interpretability. Finally, we proposed unmet challenges for the next step advancement of computational tools for enzyme engineering.
Which Flavor of 9,10-Bis(phenylethynyl)anthracene is Best for Perovskite-Sensitized Triplet-Triplet Annihilation?
Authors: Sullivan Colette , Szucs Adrienn , Cantrell Andrew , Shulenberger Katherine , Siegrist Theo , Nienhaus Lea
Published: September 2024

The lack of viable solid-state annihilators is the greatest hurdle in perovskite-sensitized triplet-triplet annihilation upconversion (UC). Unfavorable singlet and triplet energy surfaces in the solid state have limited successful the implementation of many conventional solution-based annihilators. To date, rubrene is still the best performing annihilator; however, this comes at the cost of a small apparent anti-Stokes shift. To this point, anthracene derivatives are promising candidates to increase the apparent anti-Stokes shift. The well-known green glowstick dye 9,10-(bisphenylethynyl) anthracene (BPEA) and its chlorinated derivatives have already shown great promise in solution-based UC applications. Due to favorable band alignment of the perovskite and triplet energy levels of BPEA, it is conceivable that a wide variety of BPEA derivatives could be compatible with the perovskite-based UC system. Here, we investigate the properties of the parent molecule BPEA and its derivatives 1-chloro-9,10-(bisphenylethynyl)anthracene and 2-chloro-9,10-(bisphenylethynyl) anthracene. Despite similar optical properties in solution, the different molecules exhibit vastly different properties in thin films. UC studies in lead halide perovskite/BPEA bilayer devices demonstrate the importance of intermolecular coupling on the resulting properties of the upconverted emission.
Computational Design of Gallium Imides for Methane Activation
Authors: Zhang Sylvester , McBreen Peter , Li Chao-Jun , Khaliullin Rustam
Published: September 2024

Activation of the strong non-polar C-H bonds in methane is difficult, especially in solution. In this work, computational modeling is used to modify NacNac gallium imide, which has recently been shown to cleave unactivated sp3 C-H bonds in organic substrates with the aim of making it suitable for methane activation. Density functional theory predicts that the 123 kJ mol−1 methane activation barrier for the experimentally employed gallium imide can be reduced to 93 kJ mol−1 by changing substituents around the active gallium center. Furthermore, pre-straining the gallium imide reduces the reaction barrier to just 62 kJ mol−1. Dimerization of the gallium imides can be prevented with bulky groups that do not affect the reaction barrier. Several modified NacNac gallium imides are thus shown to be viable for the homogeneous activation of methane and higher alkanes.
Surface Coordination Chemistry of Graphitic Carbon Nitride from Ag Molecular Probes
Authors: Amanullah Sk , Cao Weicheng , Brack Enzo , Plodinec Milivoj , Copéret Christophe
Published: September 2024

Graphitic carbon nitride (g-C3N4) has gained significant attention for its catalytic properties, especially in the development of Single Atom Catalysts (SACs). However, the surface chemistry underlying the formation of these isolated metal sites remains poorly understood. In this study we employ Surface OrganoMetallic Chemistry (SOMC) together with advanced microscopic and spectroscopic techniques for an in-depth analysis of functionalized g-C3N4 materials, where tailored organosilver probe molecules are used to monitor surface processes and characterize resulting surface species. A multi-technique approach – including high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM), X-ray absorption spectroscopy (XAS), and multinuclear solid-state Nuclear Magnetic Resonance spectroscopy (ssNMR), coupled with density functional theory (DFT) calculations – identifies three primary surface species in Ag-functionalized g-C3N4: bis-NHC-Ag+, dispersed Ag+ sites, and physisorbed molecular precursor. These findings highlight a dynamic grafting process and provide insights into the surface coordination chemistry of functionalized g-C3N4 materials.
Residue interactions guide translational diffusion of proteins
Authors: Fazelpour Elham , Haseleu Jennifer , Fennell Christopher
Published: September 2024

Diffusion at the molecular level involves random collisions between particles, the structure of local microscopic environments, and interactions between the molecules involved. Sampling all these aspects, along with correcting for finite-size effects, can make calculation of infinitely dilute diffusion coefficients computationally difficult. We present a new approach for estimating the translational diffusion coefficient of biomolecular structures by encapsulating these driving forces of diffusion through piece-wise assembly of the component residues of protein structure. By linking the local chemistry of a solvent-exposed patch of a molecule to its contribution to the overall hydrodynamic radius, an accurate prediction of the computationally and experimentally comparable diffusion coefficients can be constructed following a solvent-excluded surface area calculation. We demonstrate that the resulting predictions for diffusion coefficients from peptides through to protein structures are comparable to explicit molecular simulations and improve on statistical mass-based predictions, which tend to rely on limited training data. As this approach uses the chemical identity of molecular structures, we find that it is able to predict and identify differences in diffusivity for structures that would be indistinguishable by mass information alone.
A CROSS-SECTIONAL CLINICOMYCOLOGICAL STUDY OF TINEA CORPORIS IN AN INDIAN TERTIARY CARE HOSPITAL
Authors: C Dr. R Gautham , Suhana Sk. , Kumar J. Naveen , Devi V. Krishna , Ulitappa G. , Hasini B. , Mahesh K. , Pradeep A. , Ali S. Ashraf
Published: September 2024

Tinea corporis, a fungal infection of the skin, hair, and nails, has become a significant public health concern in recent years. This study aimed to assess the frequency of various fungal species associated with Tinea corporis and explore potential correlations with clinical features. A total of 311 cases from a tertiary care facility in India participated in this cross-sectional study. Samples from skin, hair, and nails were analyzed using fungal cultures and potassium hydroxide (KOH) mounts. Most patients were male and in their third decade of life, with 13% having Tinea corporis et cruris and 48.8% reporting a positive family history. Trichophyton mentagrophytes was the most commonly isolated species (80.92%), followed by Trichophyton rubrum (14.54%). No significant correlation was found between clinical characteristics, such as body surface area or illness duration, and the type of fungus identified.
Evaluation of Rockall and Blatchford Scores and Forrest Staging in Upper Gastrointestinal Bleeding
Authors: Özkan Öztürk Semra , Kumbasar Seda
Published: September 2024

Objective: The study aimed to investigate the predictive value of Rockall and Blatchford scores and endoscopic Forrest staging in the need for transfusion and intensive care in upper gastrointestinal bleeding.
Materials and Methods: This retrospective study was conducted on 294 patients with gastrointestinal bleeding who presented to the emergency department between January 1 and June 1, 2013.
Results: The mean age of 294 patients was 58.73±21.30 years. The endoscopic diagnoses of the patients included peptic ulcer (43.5%, n=128), erosive gastritis (17.3%, n=51), and erosive bulbitis (12.6%, n=37). There was no statistically significant relationship between Forrest staging and Rockall and Blatchford scores (p=0.944, p=0.757). The need for blood transfusion was significantly more frequent in patients with a Rockall score of 5 and above and those with a high Blatchford score (p=0.004, p=0.001). Patients with a Rockall score of 5 and above were significantly more common among those referred to the intensive care unit (p=0.003).
Conclusion: Pre-endoscopic Rockall and Blatchford scores and endoscopic Forrest staging can be used safely in predicting transfusion requirement, intensive care requirement, mortality risk, treatment and follow-up of patients with gastrointestinal bleeding, and thus may help to reduce health expenditures.
O MUNICÍPIO NO BRASIL REPÚBLICA E O SURTO EMANCIPACIONISTA APÓS A CONSTITUIÇÃO FEDERAL DE 1988
Authors: Nunes Marcos Antônio , Da Silva Matos Ralfo Edmundo
Published: September 2024

O ritmo da criação de municípios no Brasil variou do período colonial à República, no tempo e no seu vasto território. Contudo, foi na República que se verifi cou grande crescimento absoluto das municipalidades brasileiras. Duas constituições federativas se destacaram como “municipalistas”, a de 1946 e a de 1988, e elas contribuíram para a ocorrência dos principais surtos emancipacionistas do período republicano. O objetivo desta pesquisa é, portanto, trazer à baila os principais fatores que contribuíram para o incremento do número de municípios brasileiros durante a República, e analisar as suas motivações, vantagens e desvantagens após a Constituição Federal de 1988.
DA PECUÁRIA À SOJA: UMA LEITURA DE BALSAS (MA) – BRASIL – COM BASE EM VIDAL DE LA BLACHE
Authors: Costa Cunha Roberto Cesar , Espíndola Carlos José
Published: September 2024

O presente texto tem como objetivo central verifi car as transformações geoeconômicas no município de Balsas (MA) partindo de dois elementos estruturantes da concepção La blachiana de região: o gênero de vida e a circulação. A região sul do Maranhão foi ocupada, no século XVIII, por vaqueiros que, juntamente com as condições naturais, originou uma estrutura econômica e social lastreada na pecuária extensiva. Essa estrutura foi de fundamental importância para a criação de núcleos urbanos e o desenvolvimento do comércio. Contudo, a partir de 1960, com o processo de modernização da agricultura brasileira, a pecuária cedeu espaço para a agricultura do arroz e a cadeia produtiva de soja. Essas duas novas estruturas produtivas implantadas pelos imigrantes, oriundos do Sul do Brasil, transformaram a cidade de Balsas em polo econômico regional.
DINÂMICA DOS SEDIMENTOS CLÁSTICOS CAVERNÍCOLAS: POTENCIALIDADE PARA ESTUDO PALEOAMBIENTAIS NO BRASIL
Authors: Vitalina Da Silva Caldeira Dandara Maria , Uagoda Rogerio , Morais Nogueira Adivane
Published: September 2024

Registros paleoambientais são importantes para entender a evolução da paisagem, resultando na melhor compreensão dos processos atuais. Protegidos do cenário evolucional superfi cial, os ambientes carvernícolas abrigam ótimos registros cuja dinâmica sedimentar, por vezes, é análoga à superfície. Nesse cenário, os sedimentos clásticos constituem uma boa fonte de estudo ainda pouco explorada no Brasil. Desse modo, este artigo apresenta uma revisão bibliográfi ca da dinâmica sedimentar em ambientes cavernícolas, discutindo aspectos como defi nição, classifi cação, processos de sedimentação, diagênese e fácies, juntamente com os principais métodos utilizados para o estudo de registros paleoambientais (Carbono 14, luminescência, análises químicas e físicas.). A potencialidade do emprego desse objeto de estudo no Brasil comprova-se por meio de buscas a artigos recentes disponíveis no Portal Periódicos CAPES, base Web of Science. Ainda incipiente frente à quantidade de cavernas mapeadas, os resultados demonstram um aumento tímido, porém signifi cativo das pesquisas. A boa resposta à utilização dos vários proxies que abrange intervalos de até milhões de anos constituem alternativa para estudos paleoambientais brasileiros dada a difi culdade de encontrar tais registros em ambientes superfi ciais nos trópicos húmidos.
UNIDADES DE CONSERVAÇÃO, SERVIÇOS AMBIENTAIS E O PAGAMENTO POR SERVIÇOS AMBIENTAIS: UMA ANÁLISE A PARTIR DA REBIO TINGUÁ
Authors: Varela de Souza Sílvia Maria , Richter Monika , Sá Tobias da Costa Alexander Josef
Published: September 2024

Devido ao estilo de vida atual de consumo e a falta de infraestrutura pública como saneamento básico, os recursos naturais estão sofrendo grandes impactos negativos, sobretudo, a água. Uma das estratégias de conservação dos recursos hídricos para manter sua qualidade e quantidade é, além do Código Florestal e da Lei das Águas, a criação de unidades de conservação (UC), principalmente as que são de proteção integral, visto não permitirem o uso direto dos recursos. Neste contexto, o objetivo do presente estudo busca contextualizar a Rebio Tinguá, destacar a relevância do serviço ambiental hídrico promovido na região da Baixada Fluminense, bem como analisar aspectos relacionadas ao Pagamento pelo Serviço Ambiental (PSA) pela produção hídrica enquanto compensação fi nanceira pelo serviço prestado, podendo tornar-se signifi cativa fonte alternativa de recurso considerando a carência de investimentos que a maioria das UCs recebem atualmente. Trata-se de pesquisa de caráter exploratório, em que diferentes fontes de consulta foram utilizadas, entre elas, artigos e textos científi cos. Também foram realizadas pesquisas de campo às captações de água existentes dentro da unidade objetivando o reconhecimento, registros fotográfi cos, localização e apontamentos diversos. Os resultados apontam que a história da serra do Tinguá está diretamente relacionada com suas águas. A região possui proteção desde 1880, época do Império, por conta dos seus mananciais que já abasteceram a nobreza da cidade do Rio de Janeiro. Em 1941 foi declarada Floresta Protetora da União e em 1989 passou a ser Reserva Biológica (REBIO). Atualmente, a REBIO do Tinguá possui 31 captações ativas de água administradas pela CEDAE dentro da unidade produzindo água de qualidade e, em quantidade, e que abastecem boa parte da população da Baixada Fluminense. Conclui-se que mesmo que este recurso seja para abastecimento humano, a captação e a distribuição devem ocorrer em conformidade com a Lei do SNUC e com a Política Nacional dos Recursos Hídricos, Lei 9433/1997. A concessão de outorga ocorreu sem o parecer e anuência da Unidade, e deveria haver uma compensação por este serviço ambiental promovido pela fl oresta existente e protegida enquanto REBIO, como previsto no artigo 47 do SNUC.
O giro ecoterritorial de Maristella Svampa como a amálgama necessária das tradições emancipadoras na periferia do capitalismo
Authors: Pereira Cocato Guilherme
Published: September 2024

Resenha da obra "As fronteiras do neoextrativismo na América Latina: conflitos socioambientais, giro ecoterritorial e novas dependências".
Mudanças nas dinâmicas espaciais e temporais da urbanização do município de Barbacena (MG) para o período de 1985-2018
Authors: Alves Dos Santos Lima Matheus Felipe , Kilesse Lara Lúcia , Pereira Gabriel , Da Silva Cardozo Francielle
Published: September 2024

A análise da expansão urbana é de fundamental importância para os estudos geográficos e para a identificação das dinâmicas ambientais, econômicas e sociais. Entretanto, o rápido crescimento das cidades no Brasil ao decorrer das últimas décadas permitiu o surgimento de diversos desafios para os governantes e também para as populações urbanas. Nesse contexto, este artigo tem como objetivo principal analisar o crescimento urbano do município de Barbacena no estado de Minas Gerais e suas implicações no meio ambiente, a partir dos dados de uso e cobertura da terra (UCT) derivados do MapBiomas, coleção 4.1, obtidos a partir da plataforma Google Engine e inseridos no aplicativo SPRING 5.6 e Arcgis 10.1, e de censos demográficos, nos anos de 1980, 1991, 1996, 2000 e 2010, do Instituto Brasileiro de Geografia e Estatística (IBGE). A partir da análise espacial dos dados, percebe-se que a mancha urbana do município de Barbacena ocorre preferencialmente no eixo sudeste e na porção norte do município devido principalmente às relações econômicas entre os municípios vizinhos, por fatores físicos-geológicos e relações sociais-humanas interventivas, como a construção de rodovias e localização de indústrias. A análise espacial indica que a expansão urbana em 34 anos (1985 a 2018) foi de aproximadamente 9 km², e ocupou áreas de coberturas vegetais florestais, savânicas e plantadas em 0.41 km², área de pastagem e agricultura em 8.37 km² e outras áreas em 0.07 km². Ainda, análises do censo demográfico indicam crescimento populacional de 86.391 mil habitantes em1980 para 126.284 mil habitantes em 2010.
LA CRISIS PANDÉMICA DEL COVID-19 EN MÉXICO: PROBLEMA DE LA DESCOORDINACIÓN DEL SISTEMA FEDERAL PARA SU MANEJO
Authors: Padilla y Sotelo Lilia Susana
Published: September 2024

Se expone la crisis en la que se ha visto México desde el inicio de la pandemia del COVID-19 en donde resalta la falta de coordinación entre los órdenes de gobierno del sistema federal que presentan manejos disimiles para su control, el cual permite que las partes integrantes impulsen políticas públicas diferenciadas para dar respuestas a los problemas públicos. El objetivo general es dar a conocer como la pandemia se desarrolló en la etapa inicial y si las autoridades federales actuaron adecuadamente y en particular detectar las consecuencias sociales, la importancia de la descoordinación y si el federalismo puede verse tanto como problema como solución ante la crisis que se originó. La metodología se basa en una indagatoria general de procesos sistemáticos, empíricos y críticos respecto al tema del COVID-19 y como el gobierno federal lo ha manejado; el abordaje se realiza con métodos teóricos y geográficos-cartográficos. Los resultados permiten observar el accionar del federalismo de manera integral y multiescalar ante la pandemia y si existe concordancia entre sus componentes. Lo que permite concluir que existe una descoordinación en el sistema federal de México para enfrentar el manejo de la pandemia.
Modern Architecture and the Pioneers: Paul Pascoe and the New Zealand House, 1933–1950
Authors: Lochhead Ian
Published: September 2024

The publication of the Group Manifesto, “On the Necessity of Architecture,” in 1948 is widely regarded as a defining moment in New Zealand architectural history. The Group’s ideal of a modern architecture shaped by the environment of their own country was, however, anticipated in the pre-war writings and subsequent buildings of the Christchurch architect, Paul Pascoe (1908–1976). Although unacknowledged by the younger generation of modernists, Pascoe highlighted unexpected parallels between colonial primitivism and modernist functionalism and helped to shape the intellectual climate in which architectural modernism developed in New Zealand during the post-war period.
Through Shaded Glass: Women and Photography in Aotearoa New Zealand: 1860–1960
Authors: Hammond Catherine
Published: September 2024

In 1924 the Eastman Kodak Company proclaimed that with one of its cameras in your home you could capture “the most fascinating of all stories . . . the story of us” (p. 239). Through Shaded Glass: Women and Photography in Aotearoa New Zealand: 1860–1960 tells another story of “us”: that of women’s engagement with photography in Aotearoa, from the earliest known images taken here in the nineteenth century, until the point at which the gender divide begins to break down in the twentieth. Lissa Mitchell’s exhaustive research over the past decade has revealed the names and expanded the stories of nearly 200 women, many previously unknown, who worked in photography here between 1860 and 1960.
Ki Muri: Kia whakatōmuri te haere whakamua
Authors:   , Halliday Joshua
Published: September 2024

Aotearoa’s urban fabric is Eurocentric and does not reflect the culture of Aotearoa. Over the last 30 – 50 years, it has become apparent that Aotearoa’s urban fabric struggles to adapt and change to its respective populations in light of fundamental cultural changes in its communities. Through a design lens, this thesis explores how pre-colonial Māori spatial planning principles and cultural values might be applied to the urban fabric to align colonial towns with their cultural identities and values to encourage social cohesion and connection to place.
Everyone is an Alien Somewhere: Investigating the Skills Needed for Effective Learning Advising
Authors:   , Faisal Laila
Published: September 2024

Universities in New Zealand often offer a range of student support services, and one of these valuable resources is learning advising. At the university under examination in this study, learning advising is offered as personalised one-on-one appointments with a learning adviser. These sessions are tailored to address the individual needs of students. While students frequently provide positive feedback about these sessions, as reflected in anecdotal accounts and satisfaction surveys, the specific benefits they get from the one-to-one meetings remain unclear. As a result, the necessary skills for learning advisers to excel in their roles have not been clearly defined.

The research involved conducting interviews with twenty graduates who had used the one-on-one appointments to explore their perspectives on the sessions' usefulness in their academic journey. Themes emerged from these interviews, which were subsequently used to inform a survey. The survey was then distributed to current students who had attended one-to-one appointments, aiming to identify which themes resonated the most with them. The survey received nearly four hundred responses.

The most prominent themes that emerged from the survey revolved around support strategies that built the confidence to engage with academic expectations and to develop autonomy and competence. Both Bourdieu's concepts of cultural capital, cultural field, and habitus and Ryan and Deci’s Self-Determination Theory were used in the analysis of the themes. The findings in this research are valuable for Learning Advisers and overall student support. They highlight diverse ways in which students find support beneficial, pointing to potential areas for professional development within student support teams.
Analysis of Influencing Factors of Moderate to Severe Malnutrition in Elderly Patients with Lung Cancer during Chemotherapy
Authors: Li Ying , Qin Jiaying , Gao Ying , Nie Junying
Published: September 2024

Objective: This study aims to identify the factors influencing moderate to severe malnutrition in elderly lung cancer patients undergoing chemotherapy and to provide a basis for developing clinical prevention and intervention strategies. Methods: The clinical data of 150 elderly lung cancer patients who received chemotherapy were retrospectively analyzed. Demographic data, clinical characteristics, laboratory indicators, treatment plans, and other relevant information were collected. Independent risk factors for moderate to severe malnutrition during chemotherapy were identified. Results: During chemotherapy, 50 patients (33.33%) developed moderate to severe malnutrition. The BMI of patients with moderate to severe malnutrition was significantly lower than that of patients with no or mild malnutrition (21.20 ± 1.60 vs. 26.14 ± 2.31, P < 0.001), and the proportion of patients with stage IV tumors was significantly higher (60.00% vs. 27.00%, P < 0.001). Serum pre-albumin (pre-ALB) and hemoglobin (Hb) levels in patients with moderate to severe malnutrition were significantly lower than those in patients with no or mild malnutrition (152.67 ± 30.41 g/L vs. 252.47 ± 51.24 g/L and 102.44 ± 10.09 g/L vs. 154.21 ± 15.18 g/L, respectively, P < 0.001 for all). Conclusion: Low BMI, decreased serum pre-ALB levels, and decreased serum Hb levels before chemotherapy are independent risk factors for moderate to severe malnutrition in elderly lung cancer patients during chemotherapy. Close clinical attention should be given to these patients, with early intervention measures such as nutritional support to reduce the incidence of malnutrition and improve patients’ quality of life and prognosis.
The Individual and Organizational Factors That Contribute to The Decision of Knowledge Hiding and Their Effect On the Organization
Authors:   ,   Lebanese American University -- Chouran Beirut, Salman Haneen Samer
Published: September 2024

This thesis aims at addressing the relationship between knowledge hiding and the factors that affect it within the organization. It investigated why workers may hide knowledge from colleagues to succeed. The data collection found that lack of information-sharing rewards, internal rivalry, and psychological entitlement cause workers to hide their knowledge. It considers the lack of advantages for workers who share information, internal competition, and psychological entitlement as reasons why people keep their knowledge to themselves. Bad leadership, passive leadership, workplace disengagement, unspoken social exchanges, and supervisor-employee interaction may motivate knowledge hiding. Subjective standards may hide knowledge. Thus, organizational and individual variables will alter research results. The different variables that were used to study the effect of knowledge hiding are organizational performance, personality, interpersonal justice, and organizational motivational climate. The results of the study showed that there was a negative relationship between some variables and a positive one between others. In the end, the study's findings may interest managers and practitioners. The recommendations of this paper list key organizational characteristics that managers may promote to create a knowledge-sharing culture and dismiss knowledge hiding.
The Effects of a Personal Learning Environment on Vietnamese EFL Undergraduate Students’ Speaking Skills
Authors: Hien Hoang Viet , Suppasetseree Suksan
Published: September 2024

The personal learning environment (PLE) is a relatively new, learner-centred pedagogical approach using technology for learning. However, empirical research on PLEs remains in its infancy, especially in EFL contexts. This study therefore aimed to explore the effects of a PLE, designed by the researcher, on Vietnamese EFL undergraduates’ speaking skills and examine how these effects varied across different speaking proficiency levels. Forty students at a university in Vietnam participated in a research project lasting eight weeks utilizing the PLE for an English speaking course. Adopting a mixed-methods, quasi-experimental design, this research employed pre- and post-speaking tests, reflective journals, and semi-structured interviews to collect data. Data were analyzed using paired-samples t-tests, one-way ANOVA, and thematic analysis. The results revealed that the PLE enhanced students’ English speaking skills significantly. In addition, this enhancement varied across speaking proficiency groups, with the medium-level group experiencing the most considerable progress, followed by the low-and high-level groups. Qualitative findings from reflective journals and interviews highlighted students’ positive perceptions of using the PLE to enhance their speaking skills. In short, this research underscores the potential of using the PLE approach in developing students’ English proficiency and provides insights for educators and policymakers to employ autonomous language learning pedagogies.
Pre-service Teaching Practicum in Ecuador: An Assessment from the Educational Actors’ Perspective
Authors: Reiban Danilo , Fajardo Irma , Saldaña Priscila , Cando Jannina
Published: September 2024

This study examines the implementation and evaluation of the new pre-service teachers’ teaching practicum in Ecuador at the National University of Education (UNAE). The primary objective was to investigate the perceptions of students, teachers, and administrators from host schools regarding the impact of the teaching practicum in these institutions. Quantitative and qualitative analyses were integrated through surveys and focus groups using a mixed-methods approach. This allowed the researchers to cover a broad spectrum of perceptions from different stakeholders. The collected data included responses from 245 teachers and 2,605 students, which allowed researchers to assess both the work practices and the interaction with the pre-service teachers. Focus groups with 45 teachers facilitated an in-depth analysis of the impact and areas that needed improvement. Additionally, survey results from 2020 to 2022 were reviewed to determine the benefits and overall effect of the teaching practicum. The results generally highlight a positive perception of the teaching practicum, emphasizing their importance in enriching the educational experience and pointing out areas for improvement to strengthen the pre-service teachers’ pedagogical competencies so that they can face specific contextual challenges. The study underscores the relevance of these practices in developing teaching skills and their essential contribution to continuous school improvement.
Creating Space for Teachers as Curriculum Leaders in Secondary Schools
Authors: Bessong Rebecca Ofundem
Published: September 2024

Although the inclusion of teachers in curriculum leadership is essential for efficient teaching and learning, opportunities for teacher participation remain sparse. To address this gap, the present study aims to examine how school principals create opportunities for teachers as curriculum leaders (TCL) in secondary schools in South Africa. Employing a qualitative research approach through a multiple case study design, eight school principals were purposively (study was on principals) and conveniently selected (those who were willing to participate). Principals were individually interviewed and some school meetings were observed to obtain the empirical data. The thematically analysed data revealed that principals create opportunities for teachers to serve as curriculum leaders through teacher empowerment (teachers being delegated to analyse whole-school results). Principals also create participative decision-making structures (in which teachers freely suggest solutions to problems and principals share their visions through open communication). The findings also revealed that, through the professional development (PD) of teachers (time allocated for continuous PD and platforms provided for teacher collaboration), principals create opportunities for TCL. The implications of this study are that these strategies provide opportunities for teacher inclusion in matters such as curriculum development processes, as teachers are better informed of students’ needs. The study contributes to the knowledge of effective means of conducting and improving teachers’ PD that will culminate in desired student outcomes. Further research is recommended with a larger sample that may permit the generalisation of findings. Future studies could seek teachers’ perceptions on their preferred strategies for creating these opportunities.
Evaluating Mobile Application as Assistive Technology to Improve Students with Learning Disabilities for Communication, Personal Care and Physical Function
Authors: Zaharudin Rozniza , Izhar Nurul Ashikin , Hwa Deekha Lai
Published: September 2024

This study addresses the challenges faced by Malaysian students with learning disabilities, emphasizing the critical role of assistive technology (AT), particularly Augmentative and Alternative Communication (AAC) within mobile applications. Focusing on the Smart-App, the research explores its efficacy in supporting students in learning and establishing routines for activities of daily living (ADLs). Four preschool students aged five to six attending a specialized institution, with the use of direct observation and an adapted checklist methodology to assess their personal care, physical function, and communication aspects. Smart-App's shows significant impact on communication, enhancing two-way communication through visual schedules and AAC features. In personal care, the app facilitated ADLs, such as handwashing and tooth brushing, emphasizing a sequential click-through approach. Additionally, the oral hygiene module served as an effective pedagogical tool. In terms of physical function, Smart-App contributed to toilet training and identified challenges in specific physical activities. The study contributes substantively to the discourse on AT in education, underscoring the potential of Smart-App as a valuable tool for enhancing ADLs and fostering independence among students with learning disabilities.
Exploring the Possible Selves of Pre-Service English and Filipino Language Teachers: Insights into Language Teacher Preparation
Authors: Hajan Bonjovi H. , Alang Sitti-Rasham S. , Miguel Tarhata S. , Alivio Elvinia R. , Werble Surma J. , Alih Cherry B. , Lakibul Masna , Malinao Geanky O.
Published: September 2024

Despite the growing interest in understanding the complex nature of possible selves among pre-service language teachers, an in-depth exploration into its intricacy and how this can directly inform language teacher preparation remains relatively scarce. Using qualitative-descriptive research design, this study provides a comprehensive analysis of the possible selves of pre-service English and Filipino language teachers, specifically focusing on identifying their hoped-for selves and feared selves as future language teachers. The participants were 20 pre-service language teachers from a state university in the southernmost part of the Philippines, evenly divided between Bachelor of Secondary Education-English and Bachelor of Secondary Education-Filipino, who were selected using purposive sampling technique. Data were collected through a reflective journal, an unstructured questionnaire which explored the participants’ experiences with 40-session practice teaching, and an experiential learning course which ran for 10 weeks. The reflective journals were analyzed thematically following an AI-assisted inductive thematic analysis procedure. The analysis revealed a complex panorama of pre-service English and Filipino language teachers’ possible selves, highlighting a myriad of their hoped-for and feared selves. The findings enhanced theoretical understanding of possible selves in language teacher education and further propounded the critical need for a multifaceted approach to language teacher preparation.
A Comprehensive Analysis of Teacher Professional Learning Communities: A Scopus Based Review (2019–2024)
Authors: Nguyen Huyen Thi Thanh , Duong Nga Thi , Dang Thao Thi Phuong
Published: September 2024

Professional learning communities (PLCs) play a pivotal role in fostering continuous professional development for educators. However, the broad picture of PLCs has been under investigated in recent years. We filled this research gap by conducting a mixed systematic review of PLCs. Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) model, 27 publications from Scopus between 2019 and 2024 were extracted and analyzed. Our analysis primarily focused on discerning the prominent research trends in this field, scrutinizing research article counts, and examining countries, authors citation counts, and keywords of the selected articles. The findings reveal the existence of 12 issues pertaining to recent teacher PLCs. Notably, the number of research articles addressing this topic exhibited an upward trajectory, with the journal Teaching and Teacher Education serving as the preferred publication outlet for authors. Among the influential contributors in this domain, the research conducted by Yin et al. (2019) from Hong Kong held the greatest sway. Commonly recurring keywords in the analyzed articles include learning, professional, community, and teacher. Consequently, this research review offers a comprehensive overview of teacher PLCs, thus providing valuable guidance for educational researchers and practitioners in shaping future research endeavors.
Dorośli ze stanami ze spektrum autyzmu (ASC) – stracone pokolenie, diagnoza i wsparcie
Authors: Strzelecki Dominik D.
Published: September 2024

Stany ze spektrum autyzmu (ASC) stanowią dożywotnie stany neurorozwojowe, których cechy zazwyczaj manifestują się we wczesnym dzieciństwie, choć obecnie coraz częściej diagnozowane są także w dorosłości. Diagnostyka autyzmu, oparta na obserwacji objawów behawioralnych, ewoluowała od czasów Kannera, a kolejne wersje podręczników klasyfikacyjnych nie tylko zmieniały nomenklaturę, ale również kształtowały wytyczne dotyczące diagnozowania. W przeszłości niska świadomość specjalistów oraz zmieniające się kryteria diagnostyczne mogły sugerować, że wiele osób prezentujących nietypowe objawy, niezgodne z ówczesnymi standardami, pozostało niezdiagnozowanych lub zostało niewłaściwie zidentyfikowanych. Przegląd literatury wskazuje, że dotychczasowe badania oraz programy pomocy skupiały się głównie na dzieciach i młodzieży z ASC, a także na dorosłych z tymi stanami, którzy jednocześnie wykazywali niższy iloraz inteligencji. Warto jednak zauważyć, że dorosłe osoby z ASC, które nie spełniają tych kryteriów, również mogą doświadczać znacznego zapotrzebowania na wsparcie.
PROBLEMS FACING AGRICULTURAL EXTENSION SERVICE PROVIDERS TO FACE THE EFFECTS OF CLIMATE CHANGE IN BAGHDAD GOVERNORATE
Authors:   1Department of Agricultural Extension and Technology Transfer , College of Agricultural Engineering Sciences ,University of Baghdad , Baghdad, Iraq, mariam.abd2109m@coagri.uobaghdad.edu.iq, Abdel-Hussein Maryam Abdel-Razzaq , Fayyadh Saad Obaid ,   2 Lecturer PhD., Department of Agricultural Extension and Technology Transfer , College of Agricultural Engineering Sciences ,University of Baghdad  , Baghdad, Iraq, Saad.o@coagri.uobaghdad.edu.iq
Published: September 2024

The research aimed to determine the problems facing agricultural extension service providers to face the effects of climate change, the research community included all workers in the provision of agricultural extension service in the province of Baghdad and distributed to the Department of Agriculture of Baghdad Karkh and agricultural divisions affiliated to it and the Department of Agricultural Extension and Training in the province of Baghdad, the number of (110) individuals. All members of the community were taken as a sample for research due to their small number. To achieve the objectives of the research, a questionnaire was prepared to collect data from the respondents, consisting of (28) items distributed in three areas (problems concerned to farmers, problems concerned to agricultural extension service providers themselves, problems concerned to coordination and government support). The results of the research showed that there are several problems that hinder the workflow of service providers' agricultural extension services in providing their extension services to farmers in the field of facing the effects of climate changes in varying degrees, as the problem of the lack of specialists in agricultural extension in the field of climate changes came in the first place in terms of importance, which got a weighted mean of (3.68) degrees and a weight percentile of (92%), While the problem of extension service providers not having the skills and knowledge in determining the best agricultural practices to face climate change came in the last place in terms of importance, which got a weighted mean of (3.13) degrees with a weight percentile of (78.25%). The researcher recommended the necessity of adopting the research findings regarding the problems faced by agricultural counseling service providers and working on resolving them through the development of a training and educational plan to enhance their skills and capacities in dealing with agricultural challenges associated with climate change. Additionally, it emphasized the importance of governments and financial institutions providing financial and moral support to enhance their ability to deliver effective agricultural counseling services and assist them in tackling the challenges and problems they encounter.
SYNTHESIS, CHARACTERIZATION AND STUDY THE BIOLOGICAL ACTIVITIES OF NEW HETEOCYCLIC COMPOUNDS CONTAINIG CREATININE
Authors:   1Assistant Professor PhD. Dept. of Chemistry, College of Sciences, University. of Baghdad, Baghdad, Iraq rana.abd1105@sc.uobaghdad.edu.iq, Ali Rana Abid , Al-Tamimi Entesar O. ,   2 Professor PhD. Dept. of Chemistry, College of Sciences, University of Baghdad, Baghdad, Iraq intesar.Brias@sc.uobaghdad.edu.iq, Wadood Shatha Abdul ,   3 Professor PhD. Dept. of Chemistry, College of Sciences, University of Baghdad, Baghdad, Iraq shath_a@sc.uobaghdad.edu.iq
Published: September 2024

This work included the synthesis of new heterocyclic compounds containing creatinine moiety (A4-A9). These compounds were synthesized from reaction of Schiff bases (A2, A3) with glycine, thioglycolic acid, and glycolic acid to produce imidazolidine-4-one (A4, A5), thiazolidine-4-one A6, A7, and oxazolidine-4-one (A8, A9) respectively. FTIR and 1HNMR were used to identify these compounds. In vitro experiments, the antimicrobial properties of compounds (A1, A2, and A4) were evaluated and showed good results.
MAIN CATEGORIES OF EARLY SOVIET ART
Authors:   Lomonosov Moscow State University, Grigorieva Ekaterina S.
Published: September 2024

The article considers the main categoriesof early Soviet art. Those include “life-building” (N. Chuzhak), “production” (N. Chuzhak), “socialization of aesthetics” (B. Arvatov), “art and production” (B. Arvatov), “proletarian artist” (O. Brik), “proletarian art” and others. Addressing those categories precedes outlining the context of the production art emergence in the USSR, which is characterized by the aestheticization of the industrial theme and the connection with the general competitive attitude. As part of the appeal to the latter, the article deals with the phenomenon of acceleration in the Soviet project, namely, attempts to manage time. The author emphasizes the growth and aggravation of the reflection of “collective immersion in the temporal” in the Soviet culture of the 20–30s. The famous refrain of the “poet of the revolution” V. Mayakovsky “Time, forward!” is considered as a gesture of radical denial of the old and at the same time the assertion of a new view of art and aesthetics undertaken in early Soviet Russia. According to the author’s intuition, all such attempts are ultimately connected with a new project of a person in a new state, which had to exist in a new way and reflect these ways of being in art in a new way