bluuebunny/crossref_metadata_2025 huggingface dataset:
Hábitos alimentarios y sus efectos en el ciclo menstural en población universitaria chilena.
Authors:   , URRUTIA GUEVARA YURI PAMELA
Published: November 2024

El ciclo menstrual se ha investigado especialmente desde el síndrome premenstrual, sin asociarlo con la calidad de vida y hábitos alimentarios. Objetivo general: Determinar la relación entre los hábitos alimentarios de jóvenes universitarias de pregrado a través de la ingesta de macro y micronutrientes con las características de su ciclo menstrual y su calidad de vida, en una universidad tradicional chilena. Metodología: Estudio transversal y analítico en 95 estudiantes de pregrado, se evaluó la ingesta de nutrientes y la calidad de vida durante la menstruación mediante encuestas y entrevistas. Análisis estadístico mediante Stata versión 14.0, aplicando pruebas paramétricas y no paramétricas, considerando un p 0.05 significativo. Investigación aprobada por dos comités de ética de la institución involucrada. Resultados: Alrededor del 70% ve afectada su calidad de vida durante la menstruación, se observó que un 48,42% no cumplió con la ingesta recomendada de proteínas, a diferencia de un 58,94% que sí lo hizo para fibra. Sobre el 89,47% debe modificar su dieta hacia una alimentación más saludable. No se observó relación estadística entre el índice de alimentación saludable y el puntaje de la calidad de vida, aunque la ingesta energética diaria mostró una asociación significativa (p=0,0303) con mayor puntaje en la escala de calidad de vida. Conclusiones: Se observa una ingesta inadecuada de micro y macronutrientes y una afección de la calidad de vida durante la menstruación. Es deseable intervenir en las mejoras de ingestas para incidir en la calidad de vida de las personas menstruantes.
Resiliencia de ecosistemas fluviales: análisis mediante rasgos empíricos de ensambles de peces.
Authors:   , VEGA IBÁÑEZ PAULINA ANDREA
Published: November 2024

Los ecosistemas de agua dulce están experimentando una alarmante disminución en la biodiversidad debido a una combinación de efectos locales y alteraciones a escala de cuenca, lo que impide su capacidad para mantener la resiliencia frente a los disturbios antropogénicos. Las cuencas hidrográficas Andinas del Centro-sur de Chile enfrentan múltiples disturbios antropogénicos, como extracción de agua, energía hidroeléctrica, minería, efluentes domésticos e industriales, que afectan su capacidad de adaptarse a nuevos disturbios y de seguir proporcionando contribuciones a la sociedad. Además, la variación en la intensidad de estos disturbios resulta en un marcado gradiente, desde altos disturbios (Maipo, Rapel, Biobío, Maule), medios (Mataquito, Itata) y bajos (Imperial y Toltén). El objetivo de este estudio fue evaluar la resiliencia de los ríos en ocho cuencas hidrográficas del Centro-sur de Chile utilizando los ensambles de peces como indicadores ecosistémicos y siguiendo el marco de "las 3Rs de la resiliencia de ecosistemas fluviales". Se estudió la resiliencia ecosistémica utilizando índices taxonómicos y de rasgos funcionales de los ensambles de peces, evaluando los tres mecanismos de resiliencia: recursos, reclutamiento y refugio, que influyen colectivamente en las respuestas de los ensambles a los disturbios. Los índices taxonómicos capturaron cambios en la riqueza de especies, abundancia, diversidad, equidad y diversidad beta, mientras que los rasgos funcionales reflejaron las características de las especies de peces que promueven la resiliencia. Los test estadísticos revelaron diferencias significativas en los índices de resiliencia entre las cuencas, exhibiendo diferentes niveles de resiliencia. El reclutamiento fue el mecanismo de resiliencia más afectado, revelado por el indicador de diversidad beta, vinculado a la fragmentación en las cuencas de los ríos Maipo, Rapel y Biobío. En tanto, en la cuenca del río Toltén también se encontró un efecto significativo en el mecanismo de resiliencia, pero evidenciado por rasgos funcionales de menor resiliencia, vinculados a salmónidos no nativos. El mecanismo de recursos también se vio afectado, principalmente por cambios en el uso del suelo y contaminación del agua, en las cuencas de los ríos Maipo, Rapel, Mataquito y Maule, reflejado por el indicador de baja riqueza de especies. Notablemente, se observaron respuestas no lineales de resiliencia a los disturbios antropogénicos en varias cuencas, lo que desafía las suposiciones sobre los patrones de disturbios-resiliencia. De hecho, las cuencas hidrográficas caracterizadas por disturbios medios mostraron una alta resiliencia, indicando adaptación a las disturbios y conservación de resiliencia. Este estudio destaca la importancia de utilizar múltiples indicadores para entender la resiliencia de los ecosistemas y enfatiza la necesidad de estrategias integradas para abordar los desafíos complejos que enfrentan los ecosistemas de agua dulce.
Experimental model for assessing the effectiveness of radioprotectors in biomedical research
Authors: Omelchuk N. N. , Simakov Yu. G. , Volkova L. V. , Popadyuk V. I. , Anisimova O. V. , Khilko T. N. , Chernova O. E.
Published: November 2024

Background. Radiobiological research on chemical radioprotectors is relevant in the study of radiation injuries and in practical medicine during radiation therapy of cancer patients. Selection of the optimal experimental model is necessary to assess the effect of radioprotectors on hematopoiesis and is an important task.The aim. Analysis of the possibility of using Danio rerio fish as a test object for assessing the effectiveness of the protective effect of radioprotectors against ionizing radiation using an erythrocyte micronucleus test.Material and methods. The work was carried out on Danio rerio aquarium fish. Seven groups of two-month-old zebrafish juveniles (n = 35), as well as adult fish, were exposed to X-ray radiation at doses of 0 Gy (control), 1.0 Gy, 2.0 Gy, 3.0 Gy, 4.0 Gy, 6.0 Gy, 8.0 Gy to determine the frequency of occurrence of micronuclei in peripheral blood erythrocytes 72 hours after irradiation.Results. The frequency of occurrence of micronuclei in Danio rerio erythrocytes was dose-dependent. In juveniles, as in adult fish, the dose of ionizing radiation increased to 4 Gy led to a sharp increase in the frequency of occurrence of micronuclei in erythrocytes. Adult Danio rerio were more radioresistant; the number of micronuclei formed in erythrocytes in two-month-old juveniles exceeded the frequency of occurrence of micronuclei in adult fish.Conclusion. A model using juvenile fish Danio rerio as a laboratory test object for assessing the effectiveness of the protective effect of radioprotectors against ionizing radiation using the erythrocyte micronucleus test can be recommended for testing the effect of medications in case of radiation injuries, as well as for assessing the possibility of their use in radiation therapy in cancer patients.
Clinical and neurological manifestations of COVID-19 and other coronavirus infections: A literature review
Authors: Beloborodov V. A. , Stepanov I. A. , Kelchevskaya E. A. , Vorobiev V. A. , Frolov A. P. , Kozhevnikov M. A. , Tukhiev A. R. , Borisov V. E. , Saakyan Z. S.
Published: November 2024

As is known, the issues of pathogenesis, diagnosis and treatment of the new coronavirus infection COVID-19 are the most priority areas of scientific research in the modern clinic of internal diseases. The rate of emergence of new scientific data in the leading libraries PubMed, Medline, Cochrane Library and eLibrary, which can potentially be important in the correction of ongoing therapy for infection and its complications, is extremely high. In turn, this dictates the need for a comprehensive discussion of the results of newly published studies. These issues include clinical and neurological manifestations of COVID-19 and other coronavirus infections. The exact mechanism by which the SARS-CoV-2 virus enters the structures of the central nervous system is unknown. Thus, two pathways for the penetration of the COVID-19 pathogen are most actively discussed: the hematogenous pathway (through the systemic circulation into the vessels of the brain with a low linear blood flow velocity, which allows the virus to adhere to the surface of the endothelium and penetrate into the nervous tissue through damage to the latter) and the contact pathway (through the cribriform plate and the olfactory bulb). It should also be noted that a number of experimental works clearly demonstrate the pathogenic effect of other members of the Coronaviridae family on the neurons of the respiratory and vasomotor centers. The review presents an analysis of current literature data on the study of clinical and neurological manifestations of COVID-19 and other coronavirus infections. It is important to emphasize that patients with a severe course of COVID-19 deserve special attention, requiring observation in the intensive care unit in order to prevent the development of fatal neurological complications.
Clinical predictors of low quality of life in patients with Parkinson’s disease
Authors: Kopylova L. I. , Tappakhov A. A. , Nikolaeva T. Ya.
Published: November 2024

Background. Despite the comprehensive study of Parkinson’s disease (PD), studying the quality of life (QoL) of patients, especially the prediction of low QoL, remains an unresolved issue.The aim. To create a prognostic model for low quality of life in patients with Parkinson’s disease by studying the severity of clinical features.Materials and methods. The cross-sectional study included 104 patients diagnosed with PD (56 % of men, 48 % of women); the median age was 67.0 [60.0; 71.0] years; the median duration of the disease was 5.0 [2.0; 8.0] years. We assessed motor and non-motor symptoms of PD in all patients. The PDQ-39 (Parkinson’s Disease Questionnaire) scale was used to assess the patients’ QoL. We conventionally accepted a PDQ-39 score of 50 or more as a low QoL level in a patient. Binary logistic regression using the stepwise exclusion method was used to create a prognostic model for a low QoL level in a patient with PD.Results. To predict the probability of low QoL in patients with PD depending on the studied clinical manifestations, we proposed a function according to which female gender has the greatest impact on low QoL (odds ratio – 20.0; 95% confidence interval (95% CI): 1.82–222.26). An increase in the PD stage according to the Hoehn – Yahr scale by 1 unit causes 8.77 times increase (95% CI: 2.11–36.49) in the probability of low QoL, an increase on the Epworth sleepiness scale by 1 point – 2.33 times increase (95% CI: 1.24–4.38), an increase in the level of depression according to the HADS (Hospital Anxiety and Depression Scale) by 1 point – 1.93 times increase (95% CI: 1.13–3.32). The sensitivity and specificity of the obtained function were 95.9 and 80%, respectively.Conclusion. The proposed prognostic formula can be used in neurologists’ appointments to determine the probability of low quality of life in patients with Parkinson’s disease.
Subjective sleep quality in adolescent girls with menstrual disorders
Authors: Bolshakova S. E. , Madaeva I. M. , Berdina O. N. , Khramova E. E. , Bugun O. V. , Rychkova L. V.
Published: November 2024

Background. Menstrual irregularities occupy a leading place among gynecological diseases in girls. It is assumed that there is a connection between reproductive system disorders and sleep in adolescent girls, but to date this issue remains poorly understood.The aim. To study the subjective sleep quality of adolescent girls with irregular and regular menstrual cycles.Materials and methods. A survey of 461 teenage girls living in the city of Irkutsk and the Irkutsk region was conducted in the period from January 2023 to May 2024. Two groups were formed: group 1 – teenage girls with an irregular menstrual cycle (n = 121), group 2 – teenage girls without menstrual disorders (n = 340).Results. Adolescent girls with irregular menstrual cycles had sleep disturbances more often and longer, falling asleep later and taking longer, waking up later, poor sleep and daytime sleepiness. The average duration of sleep on weekdays, regardless of the nature of the menstrual cycle, was below the normal values for this age, which indicates a sleep deficit in adolescent girls.Conclusions. Poor sleep hygiene in adolescent girls, poor quality and short sleep cause disruption of the circadian rhythm that regulates the menstrual cycle. Increasing the duration and improving the quality of sleep are an important component of the formation and maintenance of reproductive health in adolescent girls. Further research is needed to better understand the complex relationships between circadian sleep-wake rhythms and the reproductive system in adolescent girls.
Narcotráfico y erosión de la legitimidad estatal en Paraguay: análisis de las percepciones en comunidades campesinas e indígenas
Authors: Peris Carlos Aníbal
Published: November 2024

Este artículo analiza las transformaciones en las dinámicas sociales vinculadas al narcotráfico en Paraguay, a partir de dos casos de estudio: una comunidad campesina cannábica en San Pedro y una comunidad indígena en Alto Paraguay afectada por el tráfico de cocaína. Mediante un enfoque cualitativo basado en entrevistas, se exploran las percepciones de estos grupos sobre los vínculos entre actores criminales, políticos y estatales en sus territorios. Los resultados muestran la conformación de órdenes sociales híbridos donde el Estado es disputado por poderes narco que imponen sus propias normas, erosionando la legitimidad de las autoridades, percibidas como distantes o cómplices, mientras los traficantes ganan legitimidad pragmática al proveer bienes y servicios. Conceptualmente, los casos cuestionan la dicotomía Estado-crimen, revelando una zona gris de imbricaciones mutuas. Se concluye que el abordaje del narcotráfico requiere transformar las condiciones estructurales de exclusión que lo posibilitan, trascendiendo políticas meramente represivas.
Ley de libre acceso ciudadano a la información pública y transparencia gubernamental en los municipios del departamento de Canindeyú, Paraguay
Authors: Dávalos Rodríguez Ramón , Martínez Mercado Arnaldo , Delgado Martínez Francisco Julián
Published: November 2024

El derecho de acceso a la información pública es esencial para la democracia. Garantiza a los ciudadanos la facultad de constituirse en contralores de la administración estatal. Se condujo este estudio cualitativo con el objetivo de examinar la eficacia de la ley 5282/14 de “libre acceso ciudadano a la información pública y transparencia gubernamental” en los municipios del departamento de Canindeyú, Paraguay, año 2022. A tal efecto, se aplicaron procedimientos de observación directa de los mecanismos de divulgación y la disponibilización de la información de interés público, incluidas las páginas web, los canales de redes sociales y otras opciones no digitales. Se aplicaron entrevistas semiestructuradas a una muestra intencional de intendentes para cotejar la percepción de los mismos. Los resultados muestran un menguado cumplimiento de lo establecido en la ley, lo que apunta la ineficacia de la norma, al menos para el Departamento estudiado. Las entrevistas sugieren lagunas de vaguedad en la representación y la interpretación de la ley, por parte de los ejecutivos municipales, en el marco de una cultura heterónoma, en cuyo contexto solo serían eficaces aquellas normas con organismos de control y sanciones por el incumplimiento.
The role of artificial intelligence and machine learning in optimizing U.S. healthcare supply chain management
Authors: Samuel Ajibola Dada  , Augustine Korang  , Jehoiarib Umoren  , Alice Ama Donkor
Published: November 2024

This paper aims to review the role of Artificial Intelligence and Machine Learning in managing the healthcare supply chain in the United States. Healthcare supply chains face several challenges such as fragmentation, lack of real-time visibility, and inventory management issues. However, there are solutions with the help of AI and machine learning, including the availability of predictive analytics to improve demand forecasting, optimization algorithms for inventory and logistics, and automated quality control. Application areas demand forecasting, supplier selection, logistics optimization, quality control, and real-time tracking. The applications of AI in healthcare supply chains have the potential to improve the healthcare supply chain in terms of reduced costs, increased efficiency, optimized decision-making, and better patient outcomes. However, the implementation experience has shown several challenges such as data quality, privacy concerns, regulatory compliance, and workforce adaptation within organizations. Successful implementations in various health organizations in the US give valuable insights into how AI could be well implemented. The future presents several opportunities for supply chain optimization with the rise of blockchain and Internet of Things (IoT) integration. For healthcare supply chains to adopt AI, organizations should have specific AI plans, start with pilot projects in high-impact areas, invest in data infrastructure, and ensure strong leadership support. As AI becomes increasingly critical for competitive advantage, it has the potential to create more resilient, efficient, and patient-centric supply chains in the US healthcare system.
PEMANFAATAN APLIKASI KAHOOT DALAM PEMBELAJARAN MATEMATIKA KEUANGAN BAGI SISWA SMA NEGERI 14 MALUKU TENGAH
Authors: Lewaherilla Norisca , Sinay Lexy Janzen , Bakarbessy Lusye , Yudistira Yudistira
Published: November 2024

Teori suku bunga merupakan suatu perhitungan mendasar yang harus dipahami dalam pembelajaran matematika keuangan. Siswa diajak untuk mengenai jenis-jenis suku bunga dan cara memahami perhitungannya. Didalamnya dijelaskan pula konsep time value of money sehingga siswa lebih memahami konsep nilai uang berdasarkan waktu sehingga mampu menghitung present value dan future value. Agar siswa lebih termotivasi untuk melakukan perhitungan, digunakan aplikasi kahoot dalam mengerjakan latihan soal. Dari 29 peserta yang mengikuti kuis, sebanyak 2 peserta memperoleh nilai 60, 5 orang memperoleh nilai 40, dan siswa lainnya memperoleh nilai 20 dan 0. Hasil ini dapat dijadikan pertimbangan bahwa melalui aktifitas kuis, dapat memotivasi siswa untuk menghitung dengan cepat dan tepat. Diperlukan penyesuaian waktu sehingga siswa dapat memperoleh nilai yang lebih optimal.
Tutorial Perhitungan Metode Amortisasi Dan Sinking Fund Menggunakan Microsoft Excel Kepada Guru SMA Negeri 8 Ambon
Authors: Bakarbessy Lusye , Sinay Lexy Janzen , Lewaherilla Norisca
Published: November 2024

Dalam memenuhi kebutuhan hidup tanpa didukung pendapatan yang seimbang menjadi salah satu alasan yang kuat bagi para guru untuk melakukan kredit. Kemudahan dalam pemberian kredit menjadi salah satu bentuk persaingan bagi para pemilik modal. Pengawasan perlu dilakukan secara mandiri agar tidak menyulitkan dalam proses pelunasan. Amortisasi dan sinking fund adalah metode yang digunakan untuk pelunasan kredit. Dua metode ini berfokus pada pembayaran utang secara berkala namun cara pengelolaan pembayaran sedikit berbeda. Dengan membentuk tabel amortisasi dan sinking fund Guru dapat mengetahui dan menghitung dengan pasti besar pokok pinjaman, besar bunga yang dikenakan, jumlah waktu angsuran dan besar angsuran yang dibayarkan setiap bulan. Proses ini menarik keingintahuan para guru untuk melakukan simulasi perhitungan secara mandiri agar dapat membantu memutuskan pengajuan kredit yang tepat. Simulasi perhitungan secara sederhana dilakukan  menggunakan software Microsoft Excel.
Pemberdayaan Petani Kopi Desa Sejahtera Astra Tanah Goyang Melalui Edukasi Pasca Panen Dan Manajemen Keuangan Usaha Guna Meningkatkan Kesejahteraan Masyarakat
Authors: Muspida Muspida , Ega L. , Ferdinandus Stenly J. , Wenno Meiske , Faisal Muhammad , Regar Erfendi , Arifin Hasmia Melati , Souhoka Semuel
Published: November 2024

Permasalahan yang sering terjadi pada kelompok tani petani kopi desa sejahtera astra tanah goyang salah satunya adalah pemberdayaan petani kopi desa sejahtera astra tanah goyang melalui edukasi pasca panen dan manajemen keuangan usaha yang masih tidak tertata dengan baik. Berdasarkan permasalahan tersebut maka tim pelaksana pelatihan mengangkat tema tentang edukasi pasca panen dan manajemen keuangan usaha guna  pada kelompok tani kopi di desa sejahtera astra tanah goyang. Tim akan memberikan simulasi pembuatan proposal kelayakan usaha dan bisnis sayuran dan pelatihan penyusunan laporan keuangan usaha sayuran. Dengan dilakukan beberapa program dalam pelatihan ini. Diharapkan petani dapat meningkatkan pengetahuan pengelolaan keuangan yang dilakukan oleh petani kopi.
Evaluation of salivary total antioxidant capacity and malondialdehyde in pre-menopausal and post-menopausal women
Authors: Adhab A.Kh. , Almelan M.F.
Published: November 2024

Menopause is a natural and expected stage of development that occurs in the life of a woman and is characterized by the permanent end of menstruation. Ovarian dysfunction is a result of permanent alterations to the ovaries’ reproductive and hormonal activities. The reproductive system of a woman is not the only thing that is impacted by fluctuations in hormone levels. Hormones have powerful influence on the development of the skeleton and the mouth cavity, as well as on the integrity of these structures. The oral cavity is significantly affected by them. Different stages of a woman’s life, such as puberty, menstruation, pregnancy, and menopause, each have their own unique impact on the oral health. Oxidative stress is a condition that occurs when there is an imbalance between oxidants and antioxidants, with the former making it possible for living cells to sustain damage. Lipid peroxidation and the subsequent breakdown products, such as malondialdehyde (MDA), are formed, and these compounds can be observed in biological fluids. Total antioxidant capacity is a term that is frequently used to refer to the antioxidant activity of the “nonspecific” antioxidant pool.The objective: to assess of salivary total antioxidant capacity, salivary malondialdehyde, salivary pH in pre-menopausal and post-menopausal women and correlation between pH and salivary biomarkers. Materials and methods. A case-control study was conducted in 80 healthy women. The study included 80 females between the ages of 40 and 55 years; specifically, 40 persons were premenopausal and 40 women were postmenopausal.In the saliva of the patients, the total antioxidant capacity (TAC) and MDA level were determined using the immunoassay method, and the pH level was also studied. Data description, analysis and presentation were performed using Statistical Package for social Science (SPSS version 22, Chicago, Illinois, USA). Results. The findings indicated that the pH value in the post-menopausal group was significantly higher than that of the pre-menopausal group. In comparison to the post-menopausal group, the pre-menopausal group exhibited a significantly higher level of TAC. While MDA level was significantly greater in the post-menopausal group than in the pre-menopausal group. A significant correlation of salivary pH with biomarkers of TAC and MDA of saliva was found, but there was no significant correlation between MDA and TAC in premenopausal women. On the other hand, there is a non-significant negative correlation between salivary TAC and pH level, as well as an insignificant correlation of MDA with pH and salivary TAC in postmenopausal patients. Conclusions. There are differences in salivary total antioxidant capacity and malondialdehyde level between pre-menopausal and post-menopausal women.
Clinical and anamnestic characteristics of patients with functional ovarian cysts (Retrospective study)
Authors: Pyrohova V.I. , Ferents M.
Published: November 2024

Ovarian cysts are common in young women of reproductive age. It is estimated that around 7% of women worldwide experience a symptomatic cyst during their lifetime. Functional ovarian cysts (FOCs) occupy one of the leading places in the structure of gynecological diseases (45-55%) in women of reproductive age. Functional cysts are not true neoplasms and are considered as a variant of a normal physiological process.Ovarian retention formations are found in 7.8% of clinically healthy women and in every second (52.3%) patient with lower abdominal pain or menstrual cycle disorders. Studies of FOCs have mainly concerned cysts that arose after ovulation induction, studies of spontaneous follicular cysts are limited, the question of the effect of FOCs on fertility and ovarian reserve is debated.The objective: to analyze the management of patients with FOCs in real clinical practice.Materials and methods. A retrospective case-control cohort study was conducted with the participation of 350 women aged 19 to 39 years who were diagnosed with ovarian neoplasms between 2020 and 2022. Complaints, anamnesis data, applied methods of diagnosis and treatment of neoplasms were analyzed. Results. According to clinical data, the cases were divided into 3 groups. The I group included 122 (34.9%) women in whom, in the absence of symptoms and complaints, ovarian neoplasms were detected for the first time during pelvic ultrasound.The II group consisted of 116 (33.1%) female patients, who for the first time applied for an examination due to complaints of periodic unilateral pain of various nature, a feeling of discomfort in the lower abdomen.The III group included 112 (32.0%) women who were urgently hospitalized with complaints of acute pain and pressure in the lower abdomen, bloating, weakness, dizziness. Among the patients of this group, 53 (47.3%) women had ovarian neoplasms diagnosed earlier (within 2.6±0.7 years).Among the studied cohort, according to ultrasound data, functional (follicular cysts and corpus luteum cysts) ovarian cysts were verified among the detected neoplasms in 253 (72.3%) women.Conclusions. The prevalence of functional ovarian cysts in women that do not have clinical manifestations as ultrasound findings is 78.7%, among them follicular cysts predominate (66.4%). Infertility occurs in 23.8% of asymptomatic women with functional ovarian cysts. In 34.5% of women with functional ovarian cysts who have clinical symptoms, menstrual cycle disorders prevail.
A Position-Sensitive Mixture Item Response Model
Authors: Kanopka Klint , Domingue Benjamin W.
Published: November 2024

Standard item response theory (IRT) models are ill-equipped for when the probability of a correct response depends on the location in the test where an item is encountered—a phenomenon we refer to as position effects. Unmodeled position effects complicate comparing respondents taking the same test. We propose a position-sensitive IRT model that is a mixture of two item response functions, capturing the difference in response probability when the item is encountered early versus late in the test. The mixing proportion depends on item location and latent person-level characteristics, separating person and item contributions to position effects. We present simulation studies outlining various features of model performance and end with an application to a large-scale admissions test with observed position effects.
Buffon-Einstein Intersection Ratio: A Quantum Gravitational Probability Factor Bridging General Relativity and Quantum Mechanics License: This work is licensed under a Creative Commons Attribution of CC-By 4.0 International. To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/
Authors: Richardson Howard Andrew
Published: November 2024

This paper introduces a novel approach inspired by Einstein’s thought experiments and Buffon’s needle problem, which aims to bridge General Relativity and Quantum Mechanics by developing a usable probability factor[1,2,3,4]. Through a modified Buffon Needle experiment incorporating Lorentz contraction effects and quantum uncertainty at Planck scales, we propose a theoretical framework to convert between General Relativity and Quantum Mechanical descriptions. Analyzing this in an accelerating frame, we explore quantum effects in spacetime geometry and offer potential applications in Loop Quantum Gravity, String Theory, and Quantum Computing, as well as Dark Matter, Dark Energy, and Information Paradoxes.
ASLAD-190K: Arabic Sign Language Alphabet Dataset
Authors: Boulesnane Abdennour , Bellil Lyna , Ghiri Maissoun Ghouzlen
Published: November 2024

This paper presents ASLAD-190K, a comprehensive dataset comprising 190,000 annotated RGB images representing 32 distinct Arabic Sign Language letters and gestures. Designed to support machine learning and computer vision research, ASLAD-190K offers a diverse range of images collected under varying lighting conditions, distances, and backgrounds to simulate real-world complexities. Random Under-Sampling was applied to address dataset imbalance, yielding a balanced subset of 96,000 images. Additionally, key hand landmarks and 26 geometric angles were extracted to enhance gesture recognition. The dataset is publicly available at https://data.mendeley.com/datasets/2fgpn5dwgc/2 aiming to accelerate the development of assistive technologies for the Arabic-speaking deaf and hard-of-hearing community.
Design and Implementation of an Advanced Glacier Lake Outburst Flood Early Warning System (GLOF EWS) Using LoRa IoT devices
Authors: M Geetha Priya , K R Raghavendra , Venkatesh Krishna
Published: November 2024

This paper describes the creation and deployment of a Disaster Early Warning System (DEWS) designed to detect Glacial Lake Outburst Floods (GLOFs). This system is a Comprehensive Integrated dIsaster pRevention Configuration (CIIRC)that has been built to withstand sub-zero temperatures and harsh weather conditions while displaying durability and resilience. GLOFs pose a significant risk to communities living near glacial lakes, necessitating the use of advanced monitoring equipment. The proposed system may transfer crucial data in real time from remote glacier lake monitoring stations to a central hub via radio frequency/ long-range communication, or satellite communication technology. Key properties such as lake water level, temperature, hydro pressure, and seismic activity are continuously recorded and transmitted from remote areas to a central monitoring station (CMS). The CMS examines incoming data using risk assessment algorithms (thresholds), which provide warnings and notifications as soon as potential GLOF issues are detected. The integration of this DEWS with local emergency response plans allows for more prompt and informed decision-making, which helps to mitigate GLOF-related tragedies. This comprehensive system intends to improve community resilience by delivering early warnings and facilitating proactive reaction measures.
Mexican Spanish Adaptation for the Affective Norms for English Words (ANEW)
Authors: Huerta-Chavez Vladimir , Llamas-Alonso Luis A. , Angulo-Chavira Armando Quetzalcóatl
Published: November 2024

This study adapts the Affective Norms for English Words (ANEW) dataset for Mexican Spanish, validating emotional dimensions in culturally relevant contexts. A total of 753 participants rated 1,028 translated words on valence, arousal, and dominance using the Self-Assessment Manikin (SAM) scale. The adaptation ensured linguistic equivalence through iterative translation and consensus processes, selecting region-specific terms verified with the Corpus XXI of the Royal Spanish Academy. Split-half correlations confirmed high internal consistency across dimensions (valence: r = 0.96, arousal: r = 0.89, dominance: r = 0.90), demonstrating stable and reliable ratings within the Mexican sample. Cross-linguistic analyses revealed strong correlations between Mexican Spanish and norms for European Portuguese and Spanish, with moderate correlations to English norms, highlighting cultural and linguistic influences on emotional word ratings. Gender differences further provided insights into demographic factors affecting emotional word processing. These findings underscore the need for culturally specific adaptations in research, ensuring that affective norms align with regional language use and emotional perception. This study offers a methodological framework applicable to other linguistic and cultural contexts, enhancing the precision of cross-cultural research in affective science.
Establishing the Research Priorities of ADHD Professionals: An International Delphi Study
Authors: Silk Tim
Published: November 2024

Objectives: To determine ADHD research priorities from the perspective of ADHD professionals internationally. Method: A two-stage modified Delphi design was used. In Stage 1 (qualitative), participants listed research questions relating to ADHD that they perceived to be most important (N=132). In Stage 2 (quantitative), participants were then asked to rate each research question that was deemed appropriate (able to be researched and not already addressed by research) in terms of perceived importance (N=180). Results: Stage 1 generated 382 research questions with 10 broad areas identified e.g., co-occurring conditions and treatment etc. The top 20 most important questions related to ADHD in women/girls, long-term medication use, non-pharmacological interventions, ADHD measurement/rating scales, and efficacy of emotional regulation interventions.Conclusion: These results can inform an ADHD research agenda which represents the views of the individuals from major ADHD professional groups internationally. Parallel work is needed focusing on research priorities from the perspective of ADHD consumers.
High vs Low Realism in VR Avatars and How Behavioral Realism Shapes Self-Disclosure
Authors: Fraser Alan
Published: November 2024

In this study, we investigate how varying levels of behavioural realism in two distinct avatars affect social interactions involving self-disclosure in virtual reality (VR). These two avatars involved an avatar using full-body and facial motion capture for a high level of behavioural realism and the other using basic tracking of VR headsets and controllers for a more basic level of behavioural realism. Fifty-seven participants interacted with these avatars, sharing positive and negative experiences in a reciprocal social interaction. Results showed that full-body and facial motion tracking was more preferred and rated higher in enjoyment, realism, and eye contact duration. However, some participants preferred the avatar with more basic behavioural realism. These differences in avatar preferences could be tied to an uncanny valley effect, where realistic human avatars with movement imperfections may cause discomfort for some people. These findings suggest that allowing users to choose their level of preferred realism may help improve engagement with VR avatars. Although avatars with higher realism are generally preferred, the avatars with lower levels of realism were still acceptable for most participants. Thus, lower levels of avatar realism may still be effective for VR therapy when affordability and accessibility are crucial.
How Perceived CSR Drives Customer Value Co-Creation in E-Commerce: Examining the Moderating Effect of Gender and the Mediating Effect of Satisfaction
Authors: Aminjonova Gulrukhsor , Khasanova Dilfuzakhon
Published: November 2024

PurposeCustomer value co-creation (CVCC) intention has been shown to foster favorable consumer attitudes towards businesses, thereby promoting positive consumer behavior. However, research on the application of this phenomenon in the e-commerce domain remains limited. Grounded in social exchange and social identity theories, this study investigates the mediating role of satisfaction in the relationship between perceived corporate social responsibility (CSR) and CVCC intention, as well as the moderating effect of gender on this mediation within the e-commerce context.Design/methodology/approachA cross-sectional survey was conducted using non-probability convenience sampling, involving 309 students from Keimyung University in Korea. Confirmatory factor analysis was performed using SPSS-AMOS, and the proposed hypotheses were tested through SPSS PROCESS Model 7.FindingsThe findings of this study indicate that satisfaction partially mediates the relationship between perceived CSR and CVCC intention. Additionally, this mediation is moderated by gender, with the effect of perceived CSR on CVCC intention through satisfaction being stronger for female participants than for male participants.Originality/valueThis study extends social exchange and social identity theories to the e-commerce domain by elucidating the mechanisms through which CSR influences CVCC intention. It highlights the pivotal role of satisfaction in linking CSR with CVCC intention and emphasizes the moderating influence of gender. Practical recommendations are provided for e-commerce businesses to enhance the effectiveness of their CSR initiatives in fostering consumer engagement.
How Central Bank Independence Shapes Monetary Policy Communication: A Large Language Model Application
Authors: Leek Lauren Caroline , Bischl Simeon
Published: November 2024

Although central bank communication is a core monetary policy and accountability tool for central banks, little is known about what shapes it. This paper develops and tests a theory regarding a previously unconsidered variable: central bank independence (CBI). We argue that increases in CBI alter the pressures a central bank faces, compelling them to address these pressures to maintain their reputation. We fine-tune and validate a Large Language Model (Google's Gemini) to develop novel textual indices of policy pressures regarding monetary policy communication of central banks in speeches of 100 central banks from 1997 to 2023. Employing a staggered difference-in-differences and an instrumental variable approach, we find robust evidence that an increase in independence decreases monetary pressures and increases financial pressures discussed in monetary policy communication. These results are not, as generally is assumed, confounded by general changes in communication over time or singular events, in particular, the Global Financial Crisis.
Development of a Model for Quantifying Erodibility of Soils in Eastern Nigeria
Authors: Uchenna Igwe Peter , Chike Ajadike Joseph , Okonkwo Ogbu Simeon
Published: November 2024

Erodibility is the most variable factor influencing water-induced gully erosion in soil, as it governs the soil's susceptibility to detachment by opposing the driving force of rainfall erosivity in the gully erosion process. Previous studies on erodibility in Eastern Nigeria have been conducted segmented, lacking a unified model for its quantification. Therefore, this study investigated erodibility and developed a model to quantify it in the region. The nine areas most at risk for gully erosion, one in each of the region’s nine constituent states, were purposively sampled, with one gully from each area then selected through convenient sampling. Data collection instruments included observation, satellite imagery, and experimentation. A total of 81 soil samples—9 from each gully—were collected at depths of 0–30 cm, 30–60 cm, and 60–90 cm to determine the percentages of sand, silt, and clay used to quantify erodibility via Bouyoucos’ Model. Multiple Linear Regression was employed for data analysis. Results indicated that the independent variables (%sand, %silt, and %clay) made significant contributions to the dependent variable (clay ratio/erodibility) across the gullies. Ten models were developed, one for each gully and one general model for the region, as the independent variables made a significant combined contribution (R = .47, R² = .22, p = 0.00 < 0.05 significance level) to the dependent variable. The regression equation produced a model for quantifying erodibility in Eastern Nigeria as follows: erodibility (clay ratio) = 129.04 – 179 sand – 2.237 silt – 9.189 clay. The study recommends: (i) prioritizing the quantification of erodibility in all gully erosion studies to enable the application of appropriate gully remediation strategies, and (ii) the use of the developed erodibility model by built environment professionals in approving development initiatives, among other applications.
Assessment of the Relationship Between Cost of Building Materials and Property Development in Abia State, Nigeria: Evidence from Trends in Cost of Building Materials and Property Development
Authors: Ihedigbo Kingsley Sunday , Mgbeahuru Christian Obinna , Wuna Mohammed Abubakar , Olughu Christopher Egwu
Published: November 2024

Building materials contribute immensely to the quality and cost of any construction project. It is therefore pertinent for stakeholders in the construction industry to understand the implication of the rise in price of building materials and its influence on property development. The poor performance of the construction industry in terms of project delay and abandonment has been linked to incessant increase in the price of building materials. This study therefore, aims to assess the relationship between cost of building materials and property development in Abia State in order to address the challenges of building deficits in Nigeria. The study employed a quantitative research approach through a questionnaire survey that was conducted among the various construction professionals and material dealers. A total of one hundred (100) questionnaires were distributed, resulting in 77 valid responses, which is considered adequate for analysis. The study revealed that cost of building materials has a positive and statistically significant relationship with property development, with a p-value of <.022. This indicate that cost of building materials determines the level of property development. Thus, in order to overcome the challenges of project delay, project abandonment and housing deficits resulting from the incessant rise in cost of building materials, the study recommended that urgent attention should be given to the various factors influencing the cost of building materials. Also, adequate and functional price control agencies and policy should be put in place in order to regulate and checkmate the unnecessary price hike on building materials in the country.
SUNFLOWER PRODUCTIVITY DEPENDING ON THE TERM OF THE MAIN TILLAGE AND WATER-CHARGING IRRIGATION IN THE WESTERN CASPIAN REGION
Authors: Abdulnatipov Muslim
Published: November 2024

In the areas of irrigated agriculture of the Western Caspian
Sea Region, the main tillage and water-charging irrigation for
sunflower are carried out in autumn so that this crop can be
sown in the spring at the optimal time when the soil has favorable
hydrophysical indicators of fertility. However, at this time
the sunflower crops are heavily infested with weeds, which is
the main reason for low yields of the main oilseed. The purpose
of our research is to study the possibility of postponing the
terms of the main tillage and water-charging irrigation for sunflower
from autumn to spring when planting it after alfalfa for
hay. The studies have been carried out in the agricultural company
«Agrofirma Chokh» in the Gunibsky district in the Kizilyurt
zone of distant pastures of the Republic of Dagestan on light
chestnut soil. The input of an additional amount of plant mass
into the soil, the dynamics of agrophysical and agrochemical
indicators of soil fertility, the yield and oil content of seeds have
been studied. Sowing has been carried out with seeds of the
VNIIMK-8883 variety, fertilizers have been applied at a rate of
N40P24K74 during the plowing, N16P16K16 – during the sowing, and
N34 for top dressing in the phase of 8–10 leaves when cutting
furrows. It has been established that in the areas of irrigated
agriculture in the Western Caspian Sea Region with a growing
season of 140–150 days, the main tillage and pre-sowing
water-charging irrigation for sunflower variety VNIIMK-8883
should be carried out in the spring when the physical ripeness
of the soil in the 0–30 cm layer occurs. During this period, the
total amount of above-ground green mass, crop residues and
roots entering the soil, which contained 37.1 kg/ha N, 9.10 –
P2O5, 21.9 – K2O, increased by 13.5 % (2.19 t/ha), total porosity
by 0.3 %, the number of pores occupied by water – by 4.0 %,
aeration porosity is reduced by 3.3 %. The soil structure improves:
the number of soil aggregates with a size of 0.25–10.0
mm increases by 6.9 %, of which soil aggregates of optimal
sizes – by 2.9 %, water-resistant – by 2.0 %, the structural coefficient
increases to 1.55 at 0.95 in the control. The postponement
of the main tillage period after alfalfa to spring has the
advantage that for the period of autumn remaining before the
onset of frost and before the onset of physical ripeness of the
soil in spring, alfalfa forms 1.5 t/ha of above ground, 1.27 ha
and 0.46 t/ha of root mass is more than during the autumn
plowing period. And in the case of carrying out water-charging
irrigation in the spring, the total amount of plant mass increases
by 13.5 % (2.19 t/ha) than in the autumn terms of these
works. The most valuable advantage of the spring plowing of
the alfalfa layer and water-charging irrigation for sunflower
is the reduction in weed infestation by almost 4 times, the increase in yield by 25.6 %, oil content by 0.66 %, oil yield from 1 hectare – by 2.7 tons.
DINAMIKA PSIKOLOGIS DAN UPAYA MENJAGA KETAHANAN KELUARGA PADA PASANGAN SUAMI ISTRI YANG BELUM MEMILIKI ANAK
Authors: Yusniar Wa Ode , Syamsu Khairunnisa , Mayasari Ros , Mansur Mansur
Published: November 2024

Penelitian ini membahas tentang dinamika psikologis dan upaya menjaga ketahanan keluarga pada pasangan suami istri yang belum memiliki anak di desa bangkali kecamatan watopute kabupaten muna. Tujuan penelitian untuk mengetahui dinamika psikologis pasangan suami istri yang belum memiliki anak, mengetahui upaya pasangan suami istri yang belum memiliki anak di desa bangkali dalam menjaga ketahanan keluarga, dan upaya penyuluh agama Islam dalam membantu menjaga ketahanan keluarga pasangan suami istri yang belum memiliki anak. Jenis penelitian adalah kualitatif deskriptif. Dengan menggunakan teknik narrative inquiry. Hasil penelitian ini ditemukan bahwa (1) dari aspek perasaan (emosi) terdiri atas perasaan positif yaitu mengalami perasaan senang dan bahagia, sedangkan perasaan (emosi) negatif yaitu tertekan batin, gelisah, sedih, cemas, sesak dada, kecewa, takut, terpukul, tertekan, sakit hati, terpuruk dan rasa iri. Aspek penyesuaian diri melalui beberapa tahapan yaitu tahapan penolakan (denial), tahapan marah (anger), tahapan tawar-menawar (bargaining), tahapan depresi (depression) dan tahapan penerimaan (acceptance). Aspek motivasi yaitu motivasi dari pasangan, keluarga, tetangga, teman maupun masyarakat umum. (2) upaya yang dilakukan pasangan suami istri dalam menjaga ketahanan keluarga pada kondisi belum anak yaitu mereka menjaga keharmonis keluarga, saling mendukung sesama pasangan dalam menghadapi masalah, menerima masalah dan menyelesaikan masalah bersama, dan melakukan pengobatan, (3) penyuluh agama Islam khususnya dibidang keluarga sakinah belum melakukan upaya untuk menangani pasang yang belum memiliki anak, akan tetapi memberikan bimbingan kursus catin (Calon pengantin) atau ketika terjadi konflik dalam rumah tangga penyuluh agama Islam melakukan dalam bentuk konseling individu, konseling keluarga, mediasi dan motivasi.
Tale of Two Islands: Nurturing Talent through Bridging, Connecting, and Transforming
Authors: Same Siobhán Ní Dhonacha
Published: November 2024

This paper will describe how grounding Honors Program interdisciplinary curriculum in powerful perspectives of Irish and Hawaiian cultural worldviews through a “two island cultures lens,” via an online pedagogy facilitated Honors student bridging, connection, and transformation. This is a much needed paradigm for students across the globe who are living in a world roiled by existential issues such as climate survival, social separation and stratification, and an uncertain jobs future further impacted by technology and Artificial Intelligence. As an Honors Faculty who was born and raised in Dublin, Ireland, and lives and works in Hawai‘i at the University of Hawai‘i in Honolulu, Hawai‘i, the author is uniquely placed to assimilate these worldviews to promote and support Honors student success.