bluuebunny/crossref_metadata_2025 huggingface dataset:
A Robust Client Selection Mechanism for Federated Learning Environments
Authors: Veiga Rafael , Sousa John , Morais Renan , Bastos Lucas , Lobato Wellington , Rosário Denis , Cerqueira Eduardo
Published: October 2024

There is a exponential growth of data usage, specially due to the proliferation of connected applications with personalized models for different applications. In this context, Federated Learning (FL) emerges as a promising solution to enable collaborative model training while preserving the privacy and autonomy of participating clients. In a typical FL scenario, clients exhibit significant heterogeneity in terms of data distribution and hardware configurations. In this way, randomly sampling clients in each training round may not fully exploit the local updates from heterogeneous clients, resulting in lower model accuracy, slower convergence rate, degraded fairness, etc. In addition, malicious users could disseminate incorrect weights, which may decrease the accuracy of aggregated models and increase the time for convergence in FL. In this article, we introduce Resilience-aware Client Selection Mechanism for non-IID data and malicious clients in FL environment, called RICA. The proposed mechanism employs data size and entropy as criteria for client selection. In addition, RICA relies Centroid-Based Kernel Alignment (CKA) to identify and exclude potentially malicious clients. Our evaluation shows an improvement of 125% in Accuracy values in a scenario of malicious clients, which means the RICA+CKA demonstrates a more stable and resilient approach, reaching 90% accuracy in a few rounds compared to the default average approach, reached only around 30%. Therefore, results of the behavior of RICA+CKA in different datasets show the evaluation of different numbers of clients reaching around 90% while the other approach does not pass the 50% Accuracy.
Arbeitsbedingungen, Gesundheit und Erschöpfung bei Krankenpflegekräften in Deutschland
Authors: HOLLEDERER ALFONS , MAYER DENNIS
Published: October 2024

Krankenpflegekräfte weisen ein hohes Risiko für die Entwicklung von Burnout auf. In Deutschland besteht ein Forschungsdefizit zur Arbeits- und Gesundheitssituation sowie Prävention bei Krankenpflegekräften. Das trifft insbesondere auf Hilfskräfte in der Krankenpflege zu. Dieser Beitrag stellt die Ergebnisse einer Studie dar, deren Datenbasis die repräsentative BIBB / ​BAuA-Erwerbstätigenbefragung 2018 ist. Von den 20 012 befragten Erwerbstätigen übten 532 eine Tätigkeit als Krankenpflegefachkraft und 153 als Krankenpflegehelfer*in aus. 37,1 % der Fachkräfte und 21,6 % der Hilfskräfte berichteten ein häufiges Auf‌treten von körperlicher und emotionaler Erschöpfung. Logistische Regressionsanalysen ergaben, dass bei Krankenpflegekräften, die oft in emotional belastende Situationen gebracht wurden, die Wahrscheinlichkeit körperlicher und emotionaler Erschöpfung erhöht ist. Auch eine höhere Arbeitsintensität steigerte die Wahrscheinlichkeit körperlicher und emotionaler Erschöpfung. Als wichtiger Protektivfaktor wurde soziale Unterstützung identifiziert. Insgesamt werden zu Arbeitsanforderungen und -ressourcen ambivalente Resultate registriert, und eine hohe Burnout-Gefährdung wird sichtbar.
The Association Between Hematological Indices and Type 2 Diabetes Mellitus in Iranian Population
Authors: Shahmoradi Mehdi , Hajiabdolrrasouli Ladan , Kheirandish Masoumeh , Rafati Shideh , Hashemi Seyyed Mohammad , Moradi Yasmin , Eftekhar Ebrahim , Jamshidi Vahide , Sheybani Arani Mohammad Hosein
Published: October 2024

Background: Hematological alterations have been observed in diabetes, with some studies showing controversial associations between specific hematologic parameters and type 2 diabetes mellitus (T2DM). Objectives: This study aims to determine the association between hematological indices, specifically white blood cell (WBC) count, red cell distribution width (RDW), and platelet distribution width (PDW), and the presence of T2DM in an Iranian population, using data from the Bandare-Kong non-communicable diseases (BKNCD) cohort. Methods: Data from the BKNCD cohort, which includes 4063 individuals aged 35 - 70 years, was used in this study. After excluding participants with conditions that could interfere with the analysis, 2318 subjects remained for final evaluation. Results: Among the 2318 individuals, T2DM was present in 530 (22.9%). Binary logistic regression analysis revealed that the odds of T2DM increased by approximately 7% for every 109/L increase in WBC count, after adjusting for variables such as occupation, age, body mass index, sex, place of residence, education, smoking, marital status, systolic and diastolic blood pressure (DBP), and physical activity (adjusted odds ratio (aOR) = 1.066, 95% confidence interval (CI) = 1.003; 1.133, P = 0.039). Additionally, elevated PDW was associated with a 63% increase in the odds of T2DM (aOR = 1.625, 95% CI 1.159; 2.279, P = 0.005), while increased RDW was associated with decreased odds of T2DM (aOR = 0.801, 95% CI 0.716; 0.895, P < 0.001). Conclusions: Elevated PDW and WBC counts in T2DM patients in this study suggest an inflammatory state and hypercoagulability. However, the paradoxically decreased RDW may be linked to poor glycemic control in these patients.
Nerds
Authors:   After Dinner Conversation
Published: October 2024

Can sex be “just sex?” What more (if anything) does a person get from losing their virginity than the sexual experience? In this work of philosophical short story fiction, a group of ten high school nerds find solace in each other's company during their senior year. As graduation approaches, they realize their fear of entering college as virgins. Liz, the group's leader, devises a plan for them to lose their virginity to each other anonymously at her parents' lake house. The plan is successful, and the experience changes the nerds' lives, giving them confidence and a sense of belonging.
We Are Here
Authors: Carnell Harley ,   After Dinner Conversation
Published: October 2024

Must you accept what you cannot change? Is your situation, simply your perspective? In this work philosophical short story fiction, an unnamed man wakes up in an unfamiliar house and is unable to leave, no matter how hard he tries or in what direction he walks. The other residents of the house are kind but unhelpful, insisting that he cannot leave and must participate in the house's chores. The man becomes increasingly desperate to escape, but eventually resigns himself to his fate and accepts that he will always be in the house.
Democratic Practice and Reverence
Authors: Gordon Larry ,   Villanova University
Published: October 2024

This article sheds light on the synergy between Catholic social thought and community organizing. By deploying reverence, a notion from classical-Greek political philosophy, this article examines the dynamic relationship between democratic practice and public action, on the one hand, and the cultivation of the interior life, or spirituality, on the other. For moderns, the dominant culture views these realms as distinct and disconnected. In contrast, the article argues that they are mutually reinforcing, each better with the other, in greater service together for both the common good and a healthy, democratic political culture. This hypothesis is advanced through an analysis of three skills necessary for effective democratic practice: relational conversation through story; designing, implementing, and evaluating political action; and negotiation, compromise and agreement. Scholarship from political theory and philosophy, theology, and Catholic social thought, as well as direct practical professional experience, is integral to this article.
Looking Up and Looking Out
Authors: Tran Jonathan , Whelan Matthew Philipp ,   Villanova University
Published: October 2024

This essay reads W. E. B. Du Bois’s Black Reconstruction and Óscar Romero’s third pastoral letter, The Church and Popular Political Organizations, as offering a liberation-driven and Gospel-minded account of coalitional solidarity. After tracing Du Bois’s analysis of the “public and psychological wage” of racial capitalism and its divide-and-conquer strategy, the authors turn to how democracy for Du Bois involves a double maneuver of looking up from concrete reality to look out for coalitional solidarity. The authors also find a similar double maneuver in the teaching and ministry of the martyred archbishop, St. Óscar Romero. They then examine convergences between Du Bois’s Black Marxism and Romero’s Catholic social teaching, as well as important divergences. They conclude by considering implications for community organizing efforts today.
A Proclamation of Hope
Authors: Brigham Erin ,   Villanova University
Published: October 2024

This paper explores the theological underpinnings of Pope Francis’s messages to world meetings of popular movements as a way to discern his theology of organizing. In these messages, one encounters Francis’s social teaching, which is rooted in the preferential option for the poor and marginalized. Beyond an epistemological privilege of the poor long embraced in liberation theology, Francis looks to the agency, creativity, and resourcefulness of the poor to locate God’s action in history. He models a theological methodology attentive to the concrete experiences and struggles of those on the peripheries. From there, Francis points to the solidarity, resistance, and disruptive agency of grassroots movements as an expression of the Gospel. He describes the circle of praxis in a way that emphasizes encounter, solidarity, and urgency to act, summarized in his insistence that the “future of humanity” lies “in the hands of peoples and in their ability to organize.”
Rancang Bangun Sasaran Tembak Berbasis Mikrokontroler
Authors: Kurniawan Adrik widi , Sufandi Muhammad Ridhwan , Rahayu Wiwit Indah
Published: October 2024

Anggota Tentara Nasional Indonesia (TNI) diharuskan untuk mahir dalam menembak melalui latihan rutin. Namun, efisiensi latihan menembak sering terganggu karena ketiadaan sistem sasaran tembak otomatis untuk menghitung skor. Untuk mengatasi hal ini, dikembangkan sebuah alat berbentuk segi empat berukuran 50x50 cm yang dilengkapi dengan sensor laser pada sumbu x dan y. Alat ini mampu mendeteksi dan menghitung skor secara otomatis saat peluru mengenai sasaran dengan tepat, dan hasilnya ditampilkan pada layar monitor P10. Alat ini bertujuan untuk meningkatkan efisiensi dan akurasi dalam latihan menembak bagi anggota TNI.
Impact of the Virtual, Classical Classroom, And Blended Learning Styles on Students’ Satisfaction in Higher Education in Iraq Quran Science DepartmentCollege of Education for Human Sciences
Authors: Fadhil Sadir , Jameel Abeer K. , Fadhil Rana , Battal Ahmed
Published: October 2024

During the pandemic crisis of covid_19, the importance of electronic learning increased greatly and becomes necessary for the continuation of the educational process in schools and universities around the world. This study aimed to compare students' satisfaction and preferences between virtual learning, classical classroom learning, and blended learning in higher education.  The authors develop the survey questionnaire and the internal consistency of the questions was tested by the Cronbach Alpha test. Data were collected from 204 students at Anbar University in Iraq College of Education for Human Sciences/ Quran department  through a questionnaire-based study using Google forms. We have considered six questions of the Likert scale satisfaction questionnaire for the three learning styles. The Analysis of Variance (ANOVA) was used to determine if there are any significant differences between the three learning styles. The main findings reflect that Virtual learning has the highest impact on students’ satisfaction among the other styles. This study will be helpful for the decision-makers of Anbar University in developing programs and policies for using E-learning resources. Therefore, this study shows that virtual learning has become prevalent and more popular among students of Anbar University. The scores for satisfaction showed that the virtual learning style expressed greater satisfaction than the classical classroom and the blended learning styles
Pengaruh Promosi dan Kualitas Produk Tentang Keputusan Konsumen di Tiktok Marketplace
Authors: Ramadhan M Fitrah
Published: October 2024

Penelitian ini bertujuan untuk mengevaluasi dampak promosi dan kualitas produk terhadap keputusan konsumen di TikTok Marketplace. Sebagai platform media sosial yang populer, TikTok telah memperkenalkan fitur marketplace yang memungkinkan penjual untuk memasarkan dan menjual produk mereka langsung kepada pengguna. Dipercaya bahwa promosi yang efektif dan produk berkualitas tinggi dapat mempengaruhi keputusan pembelian konsumen. Penelitian ini menggunakan metode survei dengan menyebarkan kuesioner kepada 21 responden yang aktif berbelanja di TikTok Marketplace. Data yang terkumpul dianalisis menggunakan aplikasi ibm spss untuk menentukan sejauh mana promosi dan kualitas produk mempengaruhi keputusan konsumen. Hasil penelitian menunjukkan bahwa kedua variabel tersebut, baik promosi maupun kualitas produk, memiliki dampak signifikan terhadap keputusan konsumen. Promosi yang menarik dan informatif meningkatkan minat dan kepercayaan konsumen untuk membeli, sementara produk dengan kualitas tinggi memastikan kepuasan dan loyalitas konsumen. Studi ini menyarankan agar penjual di TikTok Marketplace berfokus pada strategi promosi yang kreatif serta menjaga kualitas produk untuk mengoptimalkan keputusan pembelian konsumen.
Pengaruh Program Pendidikan dan Pelatihan Terhadap Prestasi Kerja Karyawan PT. Glostar Indonesia Sukabumi
Authors: Abdurrahman Abdan
Published: October 2024

Tujuan dari penelitian ini adalah untuk mengevaluasi bagaimana program pendidikan dan pelatihan berdampak pada kinerja kerja karyawan PT. Glostar Indonesia Sukabumi. Pendidikan dan pelatihan dimaksudkan untuk meningkatkan pengetahuan, keterampilan, dan sikap kerja karyawan sehingga mereka bekerja dengan lebih efektif dan efisien. Penelitian ini melibatkan 21 karyawan yang dipilih secara purposive berdasarkan keterlibatan mereka dalam program. Metode penelitian kuantitatif digunakan pada penelitian ini. Data dikumpulkan melalui angket yang mengukur persepsi karyawan terhadap program pendidikan dan pelatihan dan bagaimana hal ini berdampak pada prestasi kerja mereka. Hasil penelitian menunjukkan bahwa program pendidikan dan pelatihan berpengaruh besar dan positif terhadap kinerja kerja karyawan. Menurut analisis regresi linear berganda, program pendidikan dan pelatihan dapat menjelaskan 73,8% variabilitas prestasi kerja, dengan pelatihan memiliki pengaruh yang lebih besar. Kedua variabel independen mempengaruhi prestasi kerja secara signifikan, menurut nilai p-value 0,000. Kesimpulannya, peningkatan kualitas program pendidikan dan pelatihan telah terbukti memainkan peran penting dalam meningkatkan prestasi kerja karyawan PT. Glostar Indonesia Sukabumi.
Pengaruh Gaya Kepemimpinan dan Budaya Organisasi Terhadap Kinerja Perusahaan PT. Glostar Indonesia
Authors: Nuranisa Siti
Published: October 2024

Penelitian ini bermaksud untuk mempertimbangkan bagaimana dampak dari budaya organisasi dan gaya kepemimpinan pada pelaksanaan PT. Glostar Indonesia, sebuah perusahaan pabrikasi yang beroperasi dalam bidang produksi sepatu. Kinerja bisnis dipengaruhi oleh faktor internal, seperti budaya organisasi dan kepemimpinan, dalam menghadapi persaingan industri yang semakin ketat. Riset ini dilakukan secara kuantitatif melalui metode survei. Data dianalisis menggunakan regresi linier berganda setelah kuesioner dibagikan kepada karyawan PT Glostar Indonesia. Penelitian ini mengidentifikasi budaya organisasi dan gaya kepemimpinan sebagai variabel bebas (independen), sementara kinerja perusahaan sebagai variabel terikat (dependen). Hasil penelitian menunjukkan gaya kepemimpinan dan budaya organisasi memengaruhi kinerja perusahaan secara positif dan signifikan. Gaya kepemimpinan memiliki kemampuan untuk meningkatkan motivasi dan kinerja karyawan, yang pada gilirannya berkontribusi pada kinerja perusahaan secara keseluruhan. Nilai-nilai bersama dan praktik kerja yang baik menunjukkan budaya organisasi yang kuat dan mendukung, yang dapat meningkatkan produktivitas, kolaborasi, dan inovasi karyawan.
Terjebak dalam Standar Tiktok: Tuntutan yang Harus Diwujudkan? (Studi Kasus Tren Marriage is Scary)
Authors: Asy'ari Muhamad Fikri , Amelia Adinda Rizqy
Published: October 2024

Penelitian ini dimulai dari pengamatan terhadap tren di TikTok yang dikenal sebagai 'Marriage is Scary'. Aplikasi berbagi video singkat ini sangat populer di kalangan Gen Z, yang merupakan generasi digital natives, sebagai sumber informasi maupun hiburan. Media sosial ini dianggap sangat cepat dan mudah untuk memperoleh berbagai informasi, mulai dari edukasi, media politik, hingga curahan hati pengguna secara real-time. Dengan satu klik, video yang diinginkan dapat muncul secara instan, dan algoritmanya membantu meningkatkan isu-isu menjadi trending melalui FYP (For Your Page). Namun, tidak semua tren yang muncul memberikan dampak positif, seperti tren 'Marriage is Scary' yang tampaknya mendorong perempuan untuk menetapkan standar tertentu bagi calon pasangannya. Video-video tersebut menampilkan narasi ketakutan dan kekhawatiran perempuan dalam menjalin hubungan. Dalam penelitian ini, peneliti menggunakan teori agenda setting untuk menganalisis fenomena 'Marriage is Scary' di kalangan pengguna TikTok dan memahami lebih dalam pandangan generasi Z terhadap tren ini. Penelitian ini dilakukan dengan metode kualitatif dan pendekatan deskriptif, menggunakan wawancara dengan beberapa anggota Gen Z serta studi literatur sebagai teknik pengumpulan data. Hasil penelitian menunjukkan bahwa meningkatnya popularitas tren ini di TikTok dan Google Trends menandakan bahwa tingginya minat publik pada isu ini, khususnya bagi perempuan yang merasa terkait dengan narasi kekhawatiran dalam pernikahan, sehingga menciptakan standar tertentu bagi pasangan hidup mereka.
Artificial Intelligence dan Big Data: Analisis Bibliometrik terhadap Inovasi Teknologi dan Tantangan Penelitian
Authors: Judijanto Loso , Mayasari Nanny , Widiastuti Sri , Saputri Dwi Yuniasih , Muthmainah Hanifah Nurul
Published: October 2024

Penelitian ini melakukan analisis bibliometrik untuk mengeksplorasi evolusi dan hubungan antardisiplin dalam penelitian Artificial Intelligence (AI) menggunakan VOSviewer. Hasil studi mengungkapkan bahwa AI telah berintegrasi secara luas dalam berbagai sektor, termasuk kesehatan, keuangan, dan pengembangan kota cerdas, menunjukkan dampak transformasionalnya di berbagai bidang. Analisis ini juga menyoroti pentingnya data science dan cloud computing dalam mendukung kapabilitas AI serta menekankan isu keamanan, privasi, dan etika sebagai pertimbangan penting dalam pengembangan AI. Selanjutnya, temuan menunjukkan kebutuhan kolaborasi interdisipliner untuk mengatasi tantangan kompleks yang dihadapi dalam penerapan AI. Studi ini memberikan panduan yang berguna untuk pengembangan kebijakan dan strategi yang dapat memanfaatkan potensi AI sambil mengatasi risiko yang terkait.
Evolusi Penelitian Pendidikan Psikologi berdasarkan Analisis Bibliometrik
Authors: Judijanto Loso
Published: October 2024

Penelitian ini bertujuan untuk mengeksplorasi evolusi penelitian dalam bidang pendidikan psikologi melalui analisis bibliometrik. Dengan menggunakan data yang diperoleh dari Google Scholar dan dianalisis menggunakan perangkat lunak VOSviewer, penelitian ini memetakan tren, topik, dan kolaborasi peneliti dalam literatur pendidikan psikologi antara tahun 1890 hingga 2022. Hasil penelitian menunjukkan bahwa topik seperti psikologi sosial, motivasi, kreativitas, dan psikologi sekolah mendominasi penelitian dalam bidang ini. Visualisasi co-occurrence kata kunci dan jaringan penulis mengungkapkan adanya peningkatan signifikan dalam kolaborasi antar peneliti dan perkembangan topik-topik utama yang terus berevolusi. Penelitian ini juga menemukan bahwa faktor sosial dan motivasional memainkan peran penting dalam keberhasilan siswa di berbagai lingkungan pendidikan. Kesimpulannya, studi ini memberikan pandangan komprehensif mengenai perkembangan penelitian pendidikan psikologi dan menawarkan rekomendasi untuk penelitian lebih lanjut yang berfokus pada integrasi teknologi dan pendekatan inovatif dalam mendukung pembelajaran siswa.
Transformational Leadership and Intrinsic Motivation on Employee Performance in the Mechanical Division of Pt.Astra Internasional (Tbk) Toyota Auto 2000 Bumi Serpong Damai Branch, South Tangerang.
Authors: Ardiansyah Fikri , Pasaribu Veta Lidya Delimah
Published: October 2024

This study examined the impact of transformational leadership and intrinsic motivation on employee performance. A quantitative approach was adopted, employing a saturated sample consisting of all 54 employees. Data analysis involved validity and reliability tests, classical assumption checks, regression analysis, correlation coefficients, coefficients of determination, and hypothesis testing. The results revealed that transformational leadership positively influences employee performance. The regression equation Y = 37.836 + 0.115X1 indicated a weak relationship, with a correlation coefficient of 0.294. The coefficient of determination (R2) of 0.119 suggests that transformational leadership accounts for 11.9% of the variance in employee performance, while other factors explain the remaining 88.1%. Hypothesis testing further supported this relationship, with a calculated t-value of 2.680 exceeding the critical value of 1.675 (p <.05), thus confirming H1. Intrinsic motivation also demonstrated a positive impact on employee performance. This was evident in the regression equation Y = 20.529 + 0.517X2. Hypothesis testing corroborated this finding, with a calculated t-value of 3.164 surpassing the critical value of 1.675 (p <.05). Finally, the combined effect of transformational leadership and intrinsic motivation on employee performance was explored through the regression equation Y = 23.637 + 0.136X1 + 0.582X2. The coefficient of determination for this model was 0.171, indicating that these two factors collectively explain 17.1% of the variance in employee performance. H3 was accepted following an F-test that confirmed its significance (F = 5.265, p <.05).
John C. Polkinghorne and Chen Ning Yang on the Dialogue between Science and Religion
Authors: Shi John
Published: October 2024

John C. Polkinghorne (1930–2021) (FRS 1974) was an English theoretical particle physicist, theologian, and Anglican priest. Professor Chen Ning Yang (ForMemRS 1992) is a theoretical physicist. Polkinghorne visited the Hong Kong Baptist University in November 2006. The present article gives an account of his visit, in particular his public lecture, a dialogue with Yang, and their responses to questions from the audience. Polkinghorne’s trip to Hong Kong introduced the interdisciplinary field of science and religion to the people of Hong Kong and mainland China, and opened an East-West dialogue on this topic. Polkinghorne’s view that “Science and religion are basically friends and not foes because they are both concerned with the search for the truth” is an inspiration for many. The same goes for Yang’s point that “Science and religion belong to one family from the beginning.”
Optimal switching of vaccination for an infectious disease model
Authors: Salwahan Shraddha , Abbas Syed , Tridane Abdessamad
Published: October 2024

We study a switched SIHR (Susceptible Infected Hospitalized Recovered) model for infectious diseases. The aim is to find the most effective switching  signal to manage the disease's effects as effectively as maintaining a  continuous vaccination program. A nonlinear, non-convex optimal control  problem of the switched system is converted into a linear and convex  optimal control problem by applying the theory of moments and semi-definite  programming. Finally, some numerical simulations are performed to compare  continuous vaccination programs and optimal switching of vaccination control. 
For more information see https://ejde.math.txstate.edu/Volumes/2024/59/abstr.html
Estrategias para la valorización y rehabilitación del patrimonio minero de Batán- Chapadmalal, Mar del Plata, Argentina
Authors: Del Río Julio Luis , Fernández R. , Bó María Juliana , Goyeneche H. , Burmeister M. , Mastropasqua P. , Camino Mariana
Published: October 2024

La minería de áridos en el distrito de General Pueyrredon se remonta a la época de la fundación de Mar del Plata en 1874, ciudad cabecera del partido, pero logra organizarse entre 1920 y 1930, en áreas que hoy conforman el ejido urbano de la ciudad y el periurbano de Batan-Chapadmalal. De 22 canteras que operaban en 1965, 15 de ellas se emplazaban en esta localidad.Las evidencias territoriales del apogeo de la minería local, constituyen en algunos casos escenarios degradados y riesgosos. Por esta razón, la recuperación ambiental, económica y social de estos sectores debe ser abordada con un criterio integral de desarrollo local. En este sentido, el presente trabajo intenta aportar al desarrollo de un Master Plan para el distrito minero, como una propuesta global de usos y espacios, de cara a planificar su desarrollo de forma coherente e integral; que articule su pasado y futuro, y que ponga en valor el paisaje minero-industrial-natural que los caracteriza con una perspectiva fuertemente identitaria.En este estudio, se integran procedimientos propios de las ciencias naturales y sociales. El aporte de la gestión ambiental urbana, la arquitectura y el urbanismo posibilitan la conversión de un paisaje productivo a cultural-productivo con actividades del orden de un museo de sitio que será primero en formato virtual y luego como una propuesta de planificación integral del área a ser elaborada en conjunto con los actores de la comunidad local y ser ofrecida a las autoridades de gestión urbana y territorial que competan.
Modelo de flujo de agua subterránea en el sector industrial planificado (Tornquist, provincia de Buenos Aires)
Authors: Albouy René , Lafont Daniela , Lexow Claudio , Carrica Jorge
Published: October 2024

Este trabajo tiene por objetivo el diseño de un modelo numérico de flujo subterráneo, con el programa MODFLOW, con miras a analizar el transporte y migración de sustancias contaminantes en el acuífero freático. El mismo se formuló en una porción de la cuenca superior del río Sauce Chico (provincia de Buenos Aires, Argentina) que incluye el denominado Sector Industrial Planificado (SIP) de Tornquist. El funcionamiento hidrológico del acuífero se plantea con una recarga a partir del agua de lluvia y una descarga en el río que drena la cuenca. El modelo numérico de flujo corrobora el esquema conceptual de funcionamiento del sistema y reproduce en forma aceptable la configuración local de la superficie freática y las direcciones de flujo predominantes en el acuífero. Los niveles calculados y observados presentan un buen ajuste (coeficiente de correlación de 0,99) y el balance de masas resulta consistente con los datos de campo. El modelo construido es una herramienta interpretativa para analizar el transporte de sustancia en el agua subterránea, diagramar puntos de monitoreo y gestionar  medidas tendientes a la preservación del recurso hídrico subterráneo.
Estudio experimental y modelado del flujo hidráulico en suelos limo-bentoníticos compactados para su uso en barreras naturales
Authors: Alercia Biga Carolina , Eberhardt Marcelo , Arrúa Pedro , Aiassa Martínez Gonzalo
Published: October 2024

Los suelos loéssicos de Córdoba, presentan una estructura macroporosa y un marcado comportamiento inestable en presencia del agua. Esta característica estructural, los vuelve vulnerables en los procesos de conducción y transporte de agentes externos bajo fenómenos de infiltración. Su mejoramiento mediante el empleo y adición de materiales naturales como la motmorillonita sódica, hace posible su uso como barreras naturales de baja permeabilidad  acorde a lo reglamentado por los organismos internacionales. De esta forma, se logra la disminución de su valor de conductividad hidráulica lo cual permite su empleo en la construcción de depósitos de rellenos sanitarios. En este trabajo, se presentan resultados de infiltración en muestras remoldeadas de suelo local con adición de bentonita sódica en diferentes porcentajes, moldeadas con diferentes valores de densidad de compactación. Se analizó el comportamiento hidráulico mediante el uso de un equipo de permeabilidad a pared flexible y se ha establecido el ascenso capilar. Los resultados indican que es posible la disminución de la infiltración de un fluido permeante a través del medio poroso, mediante el incremento de la densidad natural del suelo optimizada mediante procesos mecánicos en conjunto con la incorporación de bentonita.Se observó una respuesta experimental no lineal en las curvas de infiltración obtenidas en diferentes mezclas mejoradas con adición de bentonita. Este comportamiento de características variables, en función del tiempo y de la presencia de adición incorporada, permitió establecer los parámetros necesarios para calibrar el modelo de infiltración propuesto.
Avaliação geológica e geotécnica preliminar da degradação ambiental das áreas úmidas na região de Leme-Brasil
Authors: Failache Moisés , Zuquette Lázaro
Published: October 2024

Este trabalho apresenta uma avaliação geológico-geotécnica preliminar das áreas úmidas da região de Leme localizada no Estado de São Paulo-Brasil enfocando-se nos mecanismos que controlam a sua dinâmica de água. Os métodos utilizados foram baseados no uso de ferramentas de geoprocessamento, trabalhos de campo, nas características geológico-geotécnicas dos materiais geológicos, no uso do solo e em dados pluviográficos. Foram identificadas 112 áreas úmidas totalizando uma área de 901,03 ha as quais foram classificadas como depressionais. Estas foram agrupadas em 4 grupos com comportamento hidrológico distinto. Os graus de degradação ambiental variaram principalmente por conta da intensidade das atividades antrópicas e pelas características da configuração geológica e geotécnica de cada grupo. Os grupos que se encontram mais degradados foram aqueles que não estavam assentados sobre os diabásios. Entretanto independente do grupo, na maioria das áreas úmidas, foi verificado a diminuição da lamina de água no seu interior afetando principalmente a capacidade destas sustentar o fluxo dos canais de drenagem durante a estiagem.
The Effect of Inflation, Interest Rates and Non-Performing Loans On Stock Returns Through Profitability In Banking Companies Indonesia Period 2018-2022
Authors: Maesaroh Tiarawati Neneng , Hertina Dede
Published: October 2024

Even if the Indonesian economy has grown and the stock market has improved after COVID-19, banking stock returns in Indonesia have remained stagnant. The returns on Indonesian banking stocks in 2022 were much lower than in prior years. Identifying the internal and external variables that contributed to the fall in these shares is an obvious challenge. The purpose of this study is to investigate how return on assets (ROA) acts as a mediator between inflation, interest rates, non-performing loans, and stock returns. Thirty businesses make up the sample for this study, which employs testing methodologies including multiple regression and route analysis. Additionally, in order to find the indirect impact, the Sobel test must be used. This study found that stock returns are positively affected by inflation and return on assets, but unaffected by interest rates and non-performing loans. Unlike inflation and interest rates, return on assets can moderate the impact of non-performing loans on stock returns. stock performance. Things that could affect future returns should be carefully considered by investors.
Analisis Kelayakan Finansial Usaha Ternak Ayam Broiler pada Peternak Mitra PT Mitra Sinar Jaya di Kota Atambua
Authors: Lole Ulrikus R. , Seran Alfiani , R. D. Ratu Maria , Tiro Melkianus
Published: October 2024

A research was conducted with objectives to analyze income and financial feasibility of broiler farming business run by partner farmers of PT Mitra Sinar Jaya in Atambua City. The research method used was survey. Method of determining sample comprises two stages. First, selection of nine villages sample, purposively, which from three sub-districts in Atambua City represented by three villages. Second, selection of four farmers as respondents from each village, so total number of the respondents were 36 farmers. The selection of the respondents was done based on non-proportional random sampling. Criteria of the respondents were: 1) partner of PT Mitra Sinar Jaya, and 2) the respondents have been raising the broiler farm at least for two years. Primary data were obtained through observation and direct interview based on prepared questionnaires. Secondary data were obtained based on documentation technique from report of relevant institutions and references. Methods of data analysis applied were income analysis and financial feasibility analysis using investment criteria namely B/C, BEPIDR, BEP unit, and PP criteria. The results showed that the average income gained by each farmer from the partnership pattern of broiler farming business was 63,313,679.03/year. Further, the financial analysis showed that the farm B/C was 1.15, BEPunit was 39.33 ST, BEPIDR 55,972,941.18,- and PP was 2.6 years. In conclusion, the broiler farming business in Atambua City was profitable and financially feasible. Therefore, this business needs to be developed and improved.
The Influence of Role Plays and Learning Motivation Towards The First Year Room Division Students Speaking Ability at Tourism Polytechnic of Palembang
Authors: Wati Indah , Ahdian Morena Mochammad Rian
Published: October 2024

Speaking ability is an important skill that must be possessed by students, especially in the field of tourism. This study aims to explore the effect of role play and learning motivation on the speaking ability of first-year students of the Rooms Division at Palembang Tourism Polytechnic. This research method used a factorial design with a population of first-year students of the Hospitality Department. The research sample consisted of 32 participants, consisting of 16 people in the Experiment Group and 16 people in the Control Group. Data were collected through questionnaires and two measurement instruments, then analyzed using Two-Way Analysis of Variance. The results showed that there was a significant effect of role play on students' speaking ability, both those with high and low learning motivation. In addition, conventional teaching techniques also had a significant effect on students' speaking ability, depending on their level of learning motivation. The use of role play proved to be more effective than the conventional teaching technique in improving students' speaking ability. This finding shows that there is an interaction between role play and learning motivation that affects students' speaking ability. Therefore, this finding emphasizes the importance of applying innovative methods and high motivation in the learning process to improve students' speaking ability.  The implications of this study suggest that educators prioritize interactive and motivational teaching strategies to improve speaking skills, which are crucial for career readiness in the tourism industry. In addition, role play can be a key component in the curriculum that aims to improve communication skills at various levels of student motivation.
Perception et Conservation des Archives à la Direction « Etudes et Planification » du Ministère de la Santé, Hygiène et Prévention, République Démocratique du Congo
Authors:   Université de Kinshasa, Faculté des Lettres, Mokumu Asunga Germaine
Published: October 2024

The administrative services of the Ministry of Health are not immune to the multifaceted crises affecting the Congolese public administration. As administration is both the foundation and backbone of public management in a country, the Democratic Republic of the Congo is a nation where archival science, in all its nobility, plays a vital role in good governance. If administrations continue to thrive at the beginning of the 20th century, it is due to the importance of archival documents, which every modern and organized nation strives to preserve well, as an essential tool of national memory. Archives are data with an indefinite lifespan and cannot be materials that disappear. The observation within the General Secretariat of Health is that archives are thrown haphazardly into dark rooms where they are exposed to the elements and various kinds of rodents. Under these conditions, the disappearance of historical data is inevitable, which could constitute a significant loss, especially as some documents exist in a single copy and, once destroyed, they cannot be reconstructed.
Opening the black box of university rankings
Authors: Waltman Ludo , Eck Nees Jan van
Published: October 2024

The Times Higher Education (THE) World University Rankings 2025, published today, includes 12 Dutch universities, of which five are ranked in the top 100 worldwide. One prominent Dutch university, Utrecht University, is not included in the ranking. Last year this university decided to discontinue submitting data to the THE World University Rankings.
Nerve stretch tests in patients with lumbar discherniation
Authors: Aleksić Vuk , Joković Miloš
Published: October 2024

A herniated disc occurs when an intervertebral disc displaces and compresses a spinal nerve root. Nerve stretch tests or provocative tests have a great diagnostic value and are quite specific for the pathology of lumbar disc herniation. The nerve stretching tests that are most often used to prove or rule out compression on the spinal nerve are the following: Lazarević's test, Cram's, Bragard's, crossed-contralateral Lazarević's test, inverted Lazarević's or Fajerstein's test, Bekhterev's, Neri's, Govers' and Kernig's tests, Lhermite's sign, Dendy's test, Milgram's and Nafciger's test, bowstring sign, Trandelenburg sign, Hoover's simulation test, Menel's test, Genslen's test and Patric-faber's test. This article describes the techniques of performing all the mentioned tests, as well as their clinical significance.
Leber hereditary optic neuropathy genotype, phenotype and biochemical characteristics
Authors: Petrović-Pajić Sanja , Marković Ivanka , Hawlina Marko
Published: October 2024

Leber hereditary optic neuropathy (LHON) is a mitochondrial neurodegenerative disease presented as a painless, acute, or subacute, usually sequential, loss of central visual acuity. The other eye is typically affected in a few weeks or months (on average in 6 to 8 weeks), while in about 25% of cases, the disease is simultaneously bilateral. Although individual unilateral cases have been reported, in 97% of cases, both eyes are affected within a year. Detailed genetic analysis is crucial in the process of diagnosing LHON. Between 75 - 90% of all the recorded LHON cases occur due to one of the three common mutations in mitochondrial DNA (mtDNA), located on nucleotides 11778, 14484, and 3460, although other, rare mutations with familial occurrence have been associated with LHON as well. More recently, the so-called autosomal recessive LHON has been described, which occurs due to a mutation in the DNAJC30 gene and presents with identical clinical features, but a better visual prognosis compared to mtLHON. This short review aims to present relevant information on the phenotype, genotype, and biochemical characteristics of LHON.
Influence of Temperature Sensor (Pt100) Accuracy on the Interpretation of Experimental Results of Measuring Temperature on the Surface
Authors: Małek Maria Teresa , Koczyk Halina
Published: October 2024

This article presents the impact of accuracy of sensors, or more specifically Pt100 temperature sensors, on result analysis of experimental studies. For this purpose, an experiment was carried out consisting in measuring the temperature on the surface of a partition - a concrete wall, beneath its insulation layer. The tested surface was separated from external environment and could only be influenced by the wall structure. Therefore, the expected result of the experiment, i.e. the difference in temperature sensor readings in identical locations on both sides of the partition, should reach a value close to 0. This article also presents the values of absolute error for sensors which were determined before their installation on the surface, and on which their location depended. The obtained deviations were included in the results of the experiment, which led to a decrease in temperature differences on both sides of the partition, in some cases even reaching the expected value of 0. This analysis showed how important it is to know the measurement error and then eliminate it in result interpretation.
Geomechanical Classifications, Geotechnical Indexes, and Fractured Rock Media: the Influence of Discontinuities on the Rock Masses Description
Authors: Santa Cláudio , Fernandes Isabel , Chaminé Helder
Published: October 2024

Using geotechnical indexes and geomechanical classifications is crucial in estimating the quality and behaviour of fissured rock masses. These tools play a significant role in large-scale engineering works, particularly in underground projects where the rock mass and its response to excavation are critical for project safety and financial feasibility. The widespread adoption of these classification systems in geoengineering necessitates continuous development and improvement to enhance accuracy and reliability and align them with the evolving construction landscape. Discontinuities, in particular, profoundly impact the strength, deformability, and permeability of the rock mass, therefore defining its behaviour. Given that rock mass assessment forms the basis of geotechnical characterization and evaluation, it is essential to understand and evaluate its characteristics and their influence on the classification systems or indexes.
Interactive Attained and Predicted CII Grade Calculator Tool
Authors: Dikos Dimitrios , McCoy Timothy J.
Published: October 2024

The maritime industry is the backbone of global goods transportation and a big contributor to CO2 emissions. The International Maritime Organization (IMO) has introduced regulations to reduce emissions from ships, initially focusing on design. However, operational practices impact emissions significantly. The IMO introduced the Carbon Intensity Indicator (CII) to assess emissions from operations, effective January 2023. Existing carbon intensity assessment tools are often expensive or limited. To address this, an Excel-based calculator has been developed, accessible to all shipping operators. It incorporates various fuel options, correction factors, and operational scenarios. This tool enables informed decision-making to drive sustainability efforts amid the maritime sector's transition to a low-carbon future.
EDITORIAL
Authors: D'sordi Alves Alegrini da Silva Sidcley
Published: October 2024

EDITORIAL ReBOT V3. N1
EMPREENDIMENTOS TURÍSTICOS E IMPLICAÇÕES AMBIENTAIS NA BACIA HIDROGRÁFICA RIO TARUMÃ-AÇU, MANAUS, AM
Authors: Jonathan Nuel Lesses Freire Farias  , Maria Olívia de Albuquerque Ribeiro Simão  , Glaubécia Teixeira da Silva
Published: October 2024

O objetivo deste trabalho é analisar a oferta de recreação e lazer no trecho compreendido entre os quilômetros 4 e 45 da BR-174 e suas implicações ambientais no âmbito da Bacia Hidrográfica do Rio Tarumã-Açu, Manaus - AM. Considerando os atrativos culturais, naturais, equipamentos e serviços ofertados nesta área, foram descritos os modelos de gestão e medidas mitigadoras que os empreendimentos possuem em relação ao uso de recursos naturais, a produção e destinação de resíduos e aos cuidados com o ambiente. A pesquisa é de caráter descritivo e em uma abordagem qualitativa, utilizando múltiplas técnicas/métodos para coleta de dados, dentre elas: observações em campo, entrevistas semiestruturadas, pesquisa documental, bibliográfica, mapeamento georreferenciado e registro fotográfico. Foram entrevistados 17 proprietários/funcionários responsáveis pelos empreendimentos e 20 visitantes/turistas de 20 empreendimentos localizados, no intuito de compreender a relação entre as atividades ofertadas e o ambiente. Como resultado, para o trade turístico, a formatação de um guia de recreação e lazer referente aos cafés regionais e balneários, aliando os interesses dos empreendimentos às políticas públicas em turismo e lazer. As atividades de recreação, lazer e turismo praticados no ambiente natural podem gerar o aumento da arrecadação monetária, qualidade ambiental e empregabilidade. Porém, precisam do controle, fiscalização e monitoramento para promover a responsabilidade ambiental no exercício dessas atividades.
ESTUDO DE CASO: A IDENTIDADE INTERIORANA E CONFORTO NAS POUSADAS DE MANACAPURU E NOVO AIRÃO COMO PROPOSTA PARA A HOTELARIA EM MANAUS
Authors: Gleiciamara da Silva Fortuno  , Julliana Vaz da Cruz  , Karen Reis dos Santos
Published: October 2024

O objetivo deste estudo é apresentar a identidade interiorana através dos hotéis pousadas visto nos municípios do Amazonas, Manacapuru e Novo Airão. Sendo os objetos de trabalho neste estudo, como elementos que contribuem de forma econômica para o desenvolvimento das respectivas cidades. As pousadas são importantes como identidade das mesmas e não somente dos dois lugares, já que é fato que outros interiores possuem a mesma categoria. Tendo elementos próprios diferentes dos tipos de hospedagens visto em cidades grandes que tem pousadas como meios de hospedagem de baixa qualidade ou lugares de simples descanso. A forma de abordagem é qualitativa, e os objetivos metodológicos exploratórios e descritivos, que por meio da pesquisa de campo possibilitou a identificação da importância dos hotéis para a identidade dos municípios, fazendo com que seja uma forma de tornar o turismo mais claro e preciso na questão cultural por meio de outros segmentos e não somente de viagens. Obtendo a hipótese de adaptação de atividades praticadas de acordo com a preferência do cliente para uma cidade mais estruturada. Contribuindo para uma melhor percepção dos tipos de hotéis que seriam capazes para adaptações quanto a sua estética, procedimentos e atividades.
A IMPORTÂNCIA DA CRIAÇÃO DE UM OBSERVATÓRIO ACADÊMICO DE TURISMO DA UNIVERSIDADE DO ESTADO DA BAHIA: PLANEJAMENTO E ESTRUTURAÇÃO INICIAL DO PROJETO
Authors: Gustavo Ribeiro da Silva  , Rosana Santana dos Reis
Published: October 2024

A cidade de Salvador na Bahia é um importante polo turístico brasileiro, com uma forte imagem que atrai turistas nacionais e internacionais. Sendo assim, é de extrema importância a existência de banco de dados atualizado com informações referentes à cadeia turística da cidade de Salvador, incentivando a pesquisa e o planejamento das atividades voltadas para o turismo, estimulando investimentos que visem a expansão, qualificação e melhoria dessas atividades. Nesse sentido, a estruturação de um Observatório Acadêmico de Turismo da Universidade do Estado da Bahia se mostra um excelente meio para a integração do sistema de ensino, pesquisa e extensão universitária, juntando-se ao interesse público com o desenvolvimento do turismo, possibilitando o planejamento de políticas públicas que desenvolvam de maneira positiva a atividade na região. O objetivo deste trabalho é apresentar a estruturação inicial do projeto do Observatório Acadêmico de Turismo da Universidade do Estado da Bahia, desenvolvido pelos docentes e discentes do curso de bacharelado em Turismo e Hotelaria, sua delimitação espacial (o Centro Histórico da Cidade de Salvador), os levantamentos iniciais realizados, a definição da metodologia, o modelo e prototipagem. A metodologia deste texto caracteriza-se como abordagem qualitativa e descritiva, fundamentada nas definições e indicações dos Planos Nacionais de Turismo, funções dos observatórios de turismo e projetos de extensão universitária. Como resultado, apresenta o processo inicial para implantação do Observatório Acadêmico de Turismo do Centro Histórico de Salvador, seus planos de expansão geográfica e a ideia de se integrar à Rede Brasileira de Observatórios de Turismo.