bluuebunny/crossref_metadata_2025 huggingface dataset:
Amplifying Corporate Value: The Role of Media Exposure in Enhancing CSR Impact—Insights from the Jakarta Islamic Index 30
Authors: Widyastuti Oviya , Cahyono Edi
Published: September 2024

This study investigates the impact of Corporate Social Responsibility (CSR) on company value, with a particular focus on the moderating role of media exposure, using companies listed on the Jakarta Islamic Index 30 from 2020 to 2022 as a case study. Employing a quantitative approach, secondary data was analyzed using panel data multiple regression through Eviews 9 software. The findings reveal that CSR has a significant positive effect on company value, highlighting the importance of socially responsible practices in enhancing firm valuation. Although media exposure alone was found to have an insignificant positive effect on company value, it significantly strengthens the relationship between CSR and company value. These results underscore the critical role media exposure plays in amplifying the benefits of CSR initiatives, suggesting that companies should strategically leverage media to maximize the value derived from their CSR activities. This research contributes to the literature by providing empirical evidence on the synergistic effect of CSR and media exposure, offering valuable insights for corporate strategy development in enhancing firm value.
Different contributions of plant traits and soil properties to the efficiency of carbon sequestration between two restoration approaches in a boreal forest
Authors: Du Fengfeng , Du Zhenggang , Zhou Lingyan , Dietrich Peter , Zhou Guiyao , Wang Jing , Zhang Quanzhi , Wang Xingchang , Zhou Xuhui
Published: September 2024

Forestation plays a pivotal role in mitigating climate change by
capturing a substantial fraction of CO2 emitted by activities. However,
the efficiency of carbon (C) sequestration for different restoration
approaches such as planted forests (PFs) and naturally regenerated
forests (NRFs) remains unclear, causing large uncertainty in climate
projections. A terrestrial ecosystem model framework, which combined the
Bayesian approach with a traceability method, was used to identify the
efficacy of C sequestration in four NRFs and two PFs after 54-years of
reforestation in the boreal forest of northeastern China. The results
showed that the rate of C accumulation among the six forests ranged from
135.1 (Mongolian oak) to 400.3 g C m-2 year-1 (Dahurian larch) in the
period of 2015-2100. The two highest total C storage values at the end
of the projection period were Dahurian larch forest (57.9 ± 1.59 kg C
m-2, PFs) and hardwood forest (53.8 ± 3.01 kg C m-2, NRFs), which were
mainly the result of net primary production (NPP, 749.1 ± 47.2 g C m-2
year-1) and ecosystem C residence time (ζE, 101 ± 5
years), respectively. The efficiency of C sequestration in PFs was found
to be more influenced by plant traits, especially NPP, as well as the
turnover rate of foliage and carbon allocation to wood. In contrast, the
efficiency of C sequestration in NRFs was more correlated to the
residence time of soil organic carbon, the C:N ratio of litter, and the
content of soil inorganic nitrogen. The study highlights the different
contributions of plants and soil to carbon storage in PFs and NRFs and
advances our understanding of C accumulation between PFs and NRFs
forests in long term under the same climate condition. Our findings
provide valuable guidance for designing reforestation strategies aimed
at enhancing the terrestrial carbon sink in the future climates.
Management’s Communication Style When Disclosing Material Weaknesses in Internal Control
Authors: Brazel Joseph F. , Starliper Matthew , Yu Yao
Published: September 2024

SYNOPSIS

Section 404 of the Sarbanes-Oxley Act requires management of publicly traded companies to assess and disclose the effectiveness of their internal controls over financial reporting (ICFR). In our analysis of 200 actual ICFR reports disclosing material weaknesses in internal control, we observe that the most common communication style in our sample is, among other characteristics, a more defensive version of the “reasonable assurance” argument combined with the use of first-person pronouns. In an experiment where we vary management’s communication style with respect to material weakness disclosures, we find that nonprofessional investors are more willing to invest in a company when management uses a version of the “reasonable assurance” argument with fewer characteristics of defensive communication and does not use first-person pronouns. Our findings show a sharp contrast between the communication styles management chooses to use in actual ICFR reports and what we observe experimentally as the most effective communication style.

Data Availability: Data are available from the authors upon request.

JEL Classifications: M40; M41.
Maternal Glycemia During Pregnancy and Child Lung Function: A Prospective Cohort Study
Authors: Yang Meng , Cao Zhongqiang , Li Wenqing , Zhou Jieqiong , Liu Jiuying , Zhong Yuanyuan , Zhou Yan , Sun Lingli , Li Ruizhen , Cai Xiaonan , Xiao Han , Zhou Aifen
Published: September 2024

OBJECTIVE

Gestational diabetes mellitus (GDM) is known to be associated with certain respiratory impairments in offspring. However, the specific association between maternal GDM and childhood lung function remains unclear. We examined the association of maternal glycemia, as measured by oral glucose tolerance test (OGTT) values, with childhood lung function outcomes in a birth cohort.

RESEARCH DESIGN AND METHODS

A follow-up study was conducted with 889 children aged 6 years whose mothers underwent a 75-g OGTT between 24 and 28 weeks of gestation. After adjusting for prenatal and postnatal factors, multivariable regression models were used to evaluate the relationship between maternal glycemia and offspring lung function.

RESULTS

In total, 10.7% of the offspring were exposed to maternal GDM. Maternal GDM significantly reduced the z score of forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC), and forced expiratory flow at 25–75% of FVC in children, with more pronounced effects in female offspring. Maternal 1- and 2-h post-OGTT glucose z scores and the sum of those z scores, but not those for fasting glucose, were inversely associated with several measures of children's lung function. Additionally, maternal GDM increased the risk of impaired lung function in children (odds ratio 2.64; 95% CI, 1.10–5.85), defined as an FVC <85% of the predicted value. There were no significant associations with FEV1/FVC.

CONCLUSIONS

Maternal hyperglycemia was negatively associated with lung function in children, particularly among girls. Further studies are warranted to elucidate the underlying mechanisms of this association and to explore potential interventions to mitigate its effects.
Gamificación en la Educación: Mas allá de la diversión, estrategias efectivas para el aprendizaje significativo
Authors:   Universidad Casa Grande, Ecuador., Soledispa Zurita Pedro Luis , Ponce Morales Rommel Vinicio ,   Instituto Superior Tecnológico CENESTUR, Ecuador., Barrionuevo Montalvo Hugo Patricio ,   Universidad Particular de Loja Ecuador, Guadalupe Román Segunda Cecili ,   Universidad Técnica de Ambato Ecuador
Published: September 2024

La gamificación en la educación ha emergido como una estrategia innovadora que va más allá de la mera diversión en las aulas, ofreciendo un enfoque integral para el aprendizaje significativo. Esta técnica combina elementos propios de los juegos, como desafíos, recompensas y con objetivos educativos específicos, con el fin de motivar y comprometer a los estudiantes de manera efectiva. El objetivo de este artículo es realizar una revisión documental, para analizar el impacto de la gamificación en la educación como estrategia efectiva para promover el aprendizaje significativo en estudiantes, se busca comprender cómo la gamificación puede mejorar la motivación, participación y desarrollo de habilidades cognitivas, socioemocionales y técnicas en diferentes contextos educativos. Para esta investigación se realizó una búsqueda exhaustiva en bases de datos académicas como: Latindex, Scielo, Dialnet, Scopus y Google Académico, así como en revistas especializadas y trabajos de conferencias relevantes, utilizando términos clave relacionados con el tema, como "gamificación en educación", "estrategias efectivas", "aprendizaje significativo". Se ha evidenciado de manera consistente que la gamificación en la educación tiene un impacto positivo en el aprendizaje significativo de los estudiantes. La integración de elementos de juego en contextos educativos ha demostrado mejorar la motivación intrínseca de los alumnos, aumentar la participación activa en las actividades de aprendizaje y promover el desarrollo de habilidades cognitivas, socioemocionales y técnicas de manera integral. Se plantea la necesidad de integrar esta estrategia de manera efectiva en el diseño curricular y la planificación de actividades educativas e identificar claramente los objetivos de la Gamificación.
Understanding Precision Medicine and its applications
Authors: MK Saurabh
Published: September 2024

Precision medicine is a transformative approach to disease treatment and prevention that leverages individual genetic, environmental, and lifestyle factors. It allows clinicians and researchers to make more precise predictions about the efficacy of specific treatments, improving patient outcomes. This method is similar to personalized matching in blood transfusions and other case, diabetic patients with similar glucose levels might receive different medications based on their genetic makeup and lifestyle. Despite its promise, precision medicine is not yet fully integrated into standard healthcare practices. Key factors driving this integration include genetic profiling, pharmacogenomics, targeted therapy, and the use of biomarkers. Genetic profiling can predict disease risk and treatment responses, while pharmacogenomics studies how genetic variations affect individual responses to medications. Targeted therapies like trastuzumab for HER2-positive breast cancer and biomarkers like PSA for prostate cancer screening demonstrate the precision approach’s effectiveness. Applications of precision medicine span various medical fields, including oncology, cardiology, infectious diseases, pulmonology, neurology, and diabetes management. The integration of big data, artificial intelligence, and machine learning facilitates comprehensive analyses of genetic, environmental, and lifestyle factors, leading to increasingly personalized and effective treatments.
The Grothendieck’s Toposes as the Future Mathematics of AI
Authors: A Belabes
Published: September 2024

The aim of this article is to discuss the idea that the notion of topos could become the future mathematics of AI, by giving more emphasis to geometric forms, compared to the currently mainstream approach, which favors numbers through statistical procedures. AI engineers are looking for theories that can formalize the basic elements that shape their daily work, as well as the basic operations that structure how the human brain works. The notion of topos could contribute largely to satisfying these two main aspirations of AI engineering. The article is a part of a questioning on the nature of intelligence and supposedly intelligent machines. In this respect, it would be useful to enrich the approach that assimilates the topos as a kind of bridge that removes all the inessential aspects of things to be connected to keep an common essence that associates mathematical things. One of the most promising avenues from the archeology of the discourse on the topos is the reading by meaning. This art of reading well gives rise to the notion of conceptual strata which shows that the things to be connected have a layered configuration. What seems insignificant –in view of a supposed essence– through one conceptual stratum, might seem important through another, even capital. Rather than calling something ‘insignificant’, a consistent relativism of ‘insignificant for’ would be more appropriate, according to the conceptual stratum considered.
One Health Implication of Leptospirosis in Ethiopia: A Review
Authors: AA* Umer
Published: September 2024

Leptospirosis is a globally important zoonotic disease caused by the pathogenic Gram-negative bacteria of the genus Leptospira. The disease occurs in nearly all mammalian species and it is more common in the tropical regions because of the longer survival organism in the environment. In contaminated environment frequent exposure to animals and humans indicate one health approaches. It caused by numerous serovars of leptospira interrogans that belong to the genus Leptospira. Leptospira interrogans is not the only serovar that resembles the disease, which affects almost all mammalian species. The primary reservoir animals are known as rats and mice. Direct human transmission through exposed mucosal membranes and damaged skin to the urine of infected animals. The laboratory testing on various animal species do not significantly alter the clinical indications of leptospirosis. The best control for the disease are vaccination, quarantine, and rodent management. Tropical regions with warm, humid weather and alkaline or neutral soil are better suited for leptospira survival. Applying effective control measures and raising public awareness of leptospirosis zoonotic transmission is recommended. Concerned body should involve in supporting the study of the leptospirosis situation in deprived nations, such as Ethiopia.
Siddha and Energy Healing: A Novel Concept to Holistic Well Being
Authors: BS Sindhuja , I Sankar , RM Reddy , S* Tiwari
Published: September 2024

Siddha medicine, is a type of ancient Indian alternative medicine, which embrace a range of practices intended at promoting holistic well-being through the manipulation of energy fields within the body. Energy healing has vast prospective in delivering valuable aids across a broad spectrum of health diseases; its safety and efficacy in the management of various conditions. Despite its growing popularity, Energy healing techniques remains disputable and combats several obstructions to its approval and acceptance by the medical community. This paper endorses a broad overview of the concept and practice of Energy healing in Siddha medicine, historical evidence of resemblance to other ancient practices, familiarity to different forms of modern body energy systems, and in-depth driving factors for its practice, and applications in few cases. Additionally, paper also probes the resistance to its widespread approval and adoption; requirement of conduction of thorough scientific research to prove its efficacy and safety to help connect traditional medicine with energy medicine highlighting the potential for a more unified move to health and healing
Genetic Diversity Analysis in Rice Maintainer Lines Using K-means Clustering for Yield and Yield Attributes
Authors: Edukondalu B. , Reddy V. Ram , Rani T. Shobha , Kumari CH. Aruna , Soundharya B.
Published: September 2024

The experiment was conducted during the kharif season (June–October, 2016) at the Regional Agricultural Research Station, Jagtial, Telangana, India to evaluate 40 maintainer lines for genetic diversity using K-means cluster analysis for grain yield and its yield attributes of rice. Multivariate analysis was performed in Randomized Block Design (RBD) with two replications to comprehend the nature and magnitude of genetic divergence among the 40 maintainer lines of rice. Based on the K-means cluster analysis, the optimal number of clusters formed was seven. The highest number of genotypes were grouped in cluster I (27), followed by cluster IV (7). Intra-cluster distances varied among the clusters with the lowest recorded in cluster I (8.64) followed by cluster III (33.64) and cluster IV (75.69), while inter-cluster distances were maximum between cluster II and VI (142.32) followed by cluster VI and VII (113.42) indicating greater genetic diversity between certain clusters. This diversity suggests potential for maximizing heterosis through hybridization between genotypes from the most divergent clusters. Cluster mean analysis revealed significant differences in traits among clusters with some clusters exhibiting consistently higher or lower values for specific characteristics. Kernel length, days to flowering, hulling percentage, and plant height are major contributors to genetic divergence. Certain maintainer lines, namely, B18, CMS46B, B42, and B88 from different clusters with suitable trait means, can be selected for use in crossing programs to create desirable variations in the breeding material for yield improvement.
A CLINICAL CASE OF SUCCESSFUL SURGICAL CORRECTION OF TETRALOGY OF FALLOT BY USING THE RIGHT ATRIAL APPENDAGE AS A NEOPULMONARY VALVE
Authors: Nurkeyev Bakhytzhan Abidullayevich , Marassulov Shukhrat Iskanderovich , Aldabergenov Yerbol Nurlanuly , Adilbekova Akkerbez Bakirkyzy , Murzabayeva Saniya Kurmanayevna , Kuandykova Elmira Akmyrzayevna , Akhmoldaeva Asiya Akylbekovna
Published: September 2024

Tetralogy of Fallot (TOF) is one of the common cardiac malformation with depletion of the pulmonary circulation. In the long term, preservation of neopulmonary bicuspid valve function in Tetralogy of Fallot has a key value in pediatric cardiac surgery. In 2019, a cardiac surgeon from Iran, Amirghofran A, introduced a completely new method of forming a neopulmonary valve from the appendage of the right atrium. Previously, many attempts have been made to preserve the pulmonary valve using both autologous and foreign tissue, but the results have been disappointing. the usage of the right atrial appendage as a bicuspid valve in the pulmonary position is an alternative method for correction of Tetralogy of Fallot with deformed, hypoplastic and aplasic pulmonary valve. However, more follow-up is required to obtain data that are more reliable.
Three-dimensional geological modelling of the eastern and western parts of the Hovsan field according to geological and geophysical data
Authors: Ahmedov T.R. , Kerimova K.A. , Khalilova L.N.
Published: September 2024

The article considers the issue of volumetric modelling of productive formations of the Hovsan oil field using the PETREL software package.
The productive horizons QaS-2 and QaS-3 of the Qala Suite of the Productive Series in the eastern and western parts of the Hovsan field were taken as the object of the study. Geological and geophysical data for the research area were used to construct the model.
The Hovsan field is related to deposits of the Qala Suite in the western and eastern sections, separated by an industrially important oil-water zone. The deposits of the Qala Suite are divided into three horizons: (from top to bottom) QaS1 ― 57 m, QaS2 ― 70 m, and QaS3 ― 168 m. The total thickness of the Qala Suite is 250 m in the western part and 280 m in the eastern part.
The article explains in detail the methodology for building 3D models of the eastern and western parts of the Hovsan field using both geological and well data for the research area. It also includes a petrophysical model of the eastern and western parts of the Hovsan field and a lithological cube for volumetric lithologymodelling.
The paper shows that sands and sandstones (thickness 5―15 m), which are oil and gas reservoirs, are separated mainly in the upper and middle horizons, as well as in the top part of the lower layer of the lower horizon (thickness 30 m), which alternate with clay layers 2―3 m thick. The reservoir properties of the layers vary along the section and over the area.
Although the Hovsan field has been in production for more than 70 years, 3D geological and geophysical modelling was carried out for the first time for the eastern and western parts of the Qala Suite, which is considered promising in terms of productivity.For the first time, the research area was studied in detail from the point of view of lithology, petrophysics, and oil and gas content in the inter-well space using modelling based on 3D seismic data.On the other hand, 3D models are the basis for solving issues such as hydrocarbon resource estimation,justifying the drilling of new wells, monitoring resource development, and assessing the impact of waterflooding and production well operations.Using three-dimensional models made it possible to realise both long-term and operational forecasting when monitoring the exploitation of hydrocarbon fields.
Since the presence of new objects in the Qala Suite, considered promising in terms of productivity, is not in dispute, the study confirmstheir detection and monitoring with the application of three-dimensional models.
Leveraging Quality Management Trilogy: Lahore Universities' QECs' Effective Practices
Authors:   Superior University, Faculty of Business & Management Sciences, Lahore, Pakistan, Sain Zohaib Hassan , Vasudevan Asokan ,   2Inti International University, Faculty of Business & Communications, Putra Nilai, Malaysia
Published: September 2024

The Higher Education Commission (HEC) has created quality enhancement cells (QECs) in Higher Education Institutions (HEIs). This study aims to examine the actions taken by Quality Enhancement Cells in implementing the components of the quality management trilogy, identify the challenges encountered by QECs in implementing the quality management trilogy, and assess the endeavours of QECs in enhancing university rankings. The sample for the research included Directors from five Quality Enhancement Cells, twenty-five Heads of Departments (HODs), and twenty-five QEC representatives. The QEC directors were chosen using a procedure called universal sampling. Data was collected from representatives of the heads of departments and quality enhancement cell using a stratified random sampling approach. Data was collected from heads of departments and quality enhancement cell representatives using a close-ended questionnaire, and the directors of QECs were interviewed. Thematic analysis was employed to examine the qualitative data, while the quantitative data were analyzed by computing percentages. The study's results indicate that QECs are executing the quality management triad. However, they still need a comprehensive emphasis on all quality elements owing to resource constraints and communication gaps between QECs and the departments. This study examines the practical application of the quality management trilogy in HEIs within a developing country. It highlights the actions, challenges, and operational dynamics of QECs that need to be well-documented in existing literature. The results indicate the need for improved allocation of resources and communication to strengthen quality management. This can assist policymakers in enhancing university performance and rankings
Systematic Literature Review: Riset pelecehan seksual pada anak di Indonesia
Authors: Sarah Siti
Published: September 2024

Children are the successor of the future of the nation. Sexual abuse in children can destroy the future of children, even the nation. This case must be resolved immediately. Research is an important way of providing information and various field findings to be followed up in policy formulation as well as concrete steps in an effort to real problems. The research aims to provide in-depth information regarding research on child sexual abuse in Indonesia, particularly in the realm of research methods and study focus. The research used the SLR (Systematic Literature Review) method. Data was collected by documenting and reviewing all articles related to child sexual abuse in 2020 - 2022. They are 37 articles from accredited national and international journals obtained from Google Scholar and SINTA. The study shows that research related to child sexual abuse in Indonesia uses many methods. The qualitative is the most popular method. Conversely, the mix-method is the minimum research. The research also analyzes the focus of the problem of sexual abuse in children in three groups. They are preventive, curative efforts, and case analysis. As a result, preventive means are the most studied, and case analysis broadly is the lowest.
“Guerra contra las drogas”, racismo y los medios de Brasil
Authors: Reis Santos Brenda Evaristo , Almeida Verbena Córdula
Published: September 2024

El trabajo aborda el concepto de "Guerra contra las Drogas" propagado en Brasil y tiene como objetivo discutir cómo los medios juegan un papel en el refuerzo o en el rechazo del argumento de que la acción intervencionista de la Policía en las “favelas” y las periferias es una función de la lucha contra el narcotráfico. Partiendo del entendimiento de que esta política es parte de un sistema estructuralmente racista, la reflexión se sustenta en estudios de teóricos que abordan el tema y en la observación cualitativa de materiales producidos por medios hegemónicos y no hegemónicos. Como resultado, se espera comprender la causa de la divergencia entre los discursos de los dos segmentos mediáticos, alentar la reflexión sobre las acciones de la prensa y combatir la difusión de la falacia de la “guerra contra las drogas”.
Rosas y la prensa como herramienta de combate. Su rol durante la “Revolución de los Restauradores”
Authors: Caviasca Guillermo
Published: September 2024

Analizamos el rol de la prensa periódica porteña durante la consolidación del rosismo como fuerza hegemónica en la Provincia de Buenos Aires. Abordamos el análisis desde la perspectiva de la conformación de una “esfera pública” a partir de la crisis de la dominación española y la Revolución de mayo. Y relacionado con esto, el inicio de un proceso de luchas política y sociales por la definición del tipo de modelo socioeconómico y de estructura estatal que definiría al país naciente. En este sentido utilizamos e intentamos fundamentar la categoría “presa como herramienta de combate” a través del abordaje de la coyuntura de la “Revolución de los Restauradores” que permitió que Juan Manuel de Rosas se hiciera del poder en forma sólida por dos décadas.
Desarrollo Sostenible / Sustentable
Authors: Vega María Fernanda , Borgnia Claudia , Cantón Juliana , Zulaica Laura
Published: September 2024

El cambio climático y la degradación ambiental, mayormente causados por la actividad humana, constituyen una crisis global. La ONU establece 17 Objetivos de Desarrollo Sostenible (ODS) para abordar esta problemática. La educación juega un papel crucial en la promoción de los ODS. Sin embargo, transmitir los ODS requiere compromiso y una comprensión profunda de las conceptualizaciones para desarrollar estrategias de implementación efectivas. En este trabajo, analizaremos y revisaremos el concepto de sostenibilidad y ofreceremos definiciones encuadradas en las distintas teorías existentes.
dimensión del silencio en la Economía Social
Authors: Hidalgo Ana Laura , Galende Belén del Carmen , Isidro María Eugenia
Published: September 2024

El presente artículo pretende abordar la noción de “respetabilidad” como una construcción social y, por tanto, comunicacional de las relaciones que establecen las trabajadoras de la Economía Social en San Luis. Tal categoría es puesta en diálogo a partir de la dimensión del silencio que integra la concepción de comunicación del sector, recuperada de un escrito anterior. El trabajo reúne una serie de consideraciones teórico-metodológicas sistematizadas en un trabajo de campo desarrollado entre los años 2013 y 2019 en la provincia de San Luis.
Así amamos: experiencias erótico-amorosas de hombres con discapacidad visual
Authors: Cervantes Flores Jesús Gerardo
Published: September 2024

Así amamos: experiencias erótico-amorosas de hombres con discapacidad visual, es un proyecto de investigación-creación desde la comunicación alternativa que inició con una investigación de corte fenomenológico donde se realizaron entrevistas en profundidad a hombres con ceguera y culminó con una serie podcast de ficción.

         Los principales hallazgos de la investigación concluyen que los hombres con ceguera han vivido de manera diferenciada sus experiencias erótico-amorosas en comparación con las personas normovisuales, quienes tienen poca sensibilización tienen hacia la discapacidad y a quienes les cuesta la idea de relacionarse amorosamente con una persona con ceguera. Los resultados se narran en la serie podcast que consta de cinco capítulos donde se abordan diversos temas de las experiencias erótico-amorosas de la población de estudio: autoerotismo, cortejo, primera vez, relaciones amorosas y ruptura.

         Se concluye que la investigación-creación desde la comunicación alternativa es una forma de activar la expresión del otro ante la normalidad hegemónica.
Prensa, Neuquén y guerra de Malvinas
Authors: Rodriguez Andrea Belén
Published: September 2024

El artículo aborda los sentidos que el periódico neuquino La Trastienda construyó sobre la guerra de Malvinas desde una perspectiva histórica sociocultural. En una coyuntura en la que los márgenes de lo decible sobre el conflicto eran estrechos por las políticas de “acción psicológica” del régimen y por el fervor patriótico que se expandió en la sociedad, el trabajo demuestra que el periódico desafió constantemente los límites y encontró estrategias para transgredir las pautas de control a la información, desplegando una mirada mesurada, reflexiva y crítica sobre la contienda bélica.
Memorias de una burócrata. La teoría del cuerpo
Authors: Casabone Griselda Edith
Published: September 2024

La autora recupera una serie de episodios –bajo la forma experimental de microensayos o mircrorelatos- de su experiencia como trabajadora en el Estado que dan cuenta de las historias de los cuerpos, que no se registran en la historia oficial pero que pueden nutrir las prácticas estatales y fortalecer la gestión pública.
Studi Pustaka Uji Sitotoksik Rimpang Lempuyang Gajah (Zingiber zerumbet (L) Smith)
Authors: Doloking Haeria , Wahyuddin Munifah , Nurwana
Published: September 2024

Abstrak
Pendahuluan: Indonesia, sebagai negara dengan keanekaragaman hayati yang tinggi, memiliki banyak tumbuhan obat yang berpotensi untuk dikembangkan menjadi obat tradisional, termasuk rimpang lempuyang gajah (Zingiber zerumbet L. Smith) yang dikenal kaya akan senyawa aktif seperti zerumbone. Tujuan: Penelitian ini dilakukan untuk mengeksplorasi potensi sitotoksik dari lempuyang gajah, karena meskipun memiliki banyak manfaat farmakologis, efek sitotoksiknya terhadap sel kanker belum banyak diteliti. Metode: Jenis Penelitian yang dilakukan ialah studi literatur. artikel ilmiah atau jurnal ilmiah baik internasional atau nasional diperoleh sebanyak 96 Jurnal dan artikel ilmiah dari tahun 2003 sampai 2020 yang diidentifikasi dan belum dieksplorasi relevansinya dengan masalah yang akan diteliti. Metode yang paling sering digunakan dalam uji sitotoksik adalah MTT assay, yang mengukur pembentukan kristal formazan sebagai indikator viabilitas sel. Hasil: Berdasarkan kajian studi pustaka menunjukkan bahwa ekstrak Zingiber zerumbet memiliki potensi sitotoksik yang kuat, dengan nilai IC50 yang rendah pada berbagai sel kanker. Senyawa zerumbone terbukti memiliki aktivitas antiproliferatif dan antikanker, yang terutama bekerja melalui mekanisme apoptosis dan penangkapan siklus sel. Kesimpulan: Zingiber zerumbet, khususnya zerumbone, memiliki potensi sebagai agen antikanker yang signifikan, yang mendukung pentingnya penelitian lebih lanjut untuk pengembangan obat-obatan berbasis tanaman ini.
Kata kunci: Sitotoksik, Lempuyang Gajah, Zerumbone, Zingiber Zerumbet
Identifikasi Senyawa Flavonoid Ekstrak Daun Heredong Bulu (Clidemia hirta (L) D. Don) dengan Menggunakan Spektrofotometri Uv-Vis dan FTIR
Authors: Suprapto Prayitno  , Doloking Haeria , Ludgensia Indradewi Kurniati
Published: September 2024

Abstrak
Pendahuluan: Daun heredong bulu secara empiric dipercaya mampu menyembuhkan bisul, dapat mengobati luka, mengobati infeksi karena memiliki kandungan kimia flavonoid, tanin, saponin, serta steroid. Senyawa flavonoid dan tanin berkhasiat sebagai antibakteri. Tujuan: Penelitian ini bertujuan untuk mengetahui dan mengidentifikasi golongan dan karakteristik senyawa flavonoid Ekstrak Daun Heredong Bulu (Clidemia hirta (L) D. Don). Metode: Penelitian ini dilakukan dengan metode maserasi menggunakan pelarut etanol 96%. Ekstak etanol difraksinasi menggunakan pelarut H2O dan etil asetat. Uji skrining fitokimia Ekstrak Daun Heredong Bulu (Clidemia hirta (L) D. Don) menunjukan positif mengandung flavonoid, dengan penambahan pereaksi NaOH, H2SO4 dan HCl pekat+serbuk Mg yang ditandai dengan warna merah dan kuning. Identitifikasi dengan Kromatografi Lapis Tipis (KLT) dengan eluen N-Heksan:Etil Asetat (6:4), (7:3), (8:2), (9:1). Penampakan noda yang baik yang dielusi dengan eluen N-Heksan:Etil Asetat (7:3), selanjutnya dilakukan pemisahan dengan Kromatografi Lapis Tipis Preparatif (KLTP) menggunakan eluen N-Heksan:Etil Asetat (7:3), diperoleh 6 fraksi. Hasil: Penelitian ini diperoleh uji identifikasi dengan menggunakan KLT dua dimensi dengan eluen N-Heksan:Etil Asetat (7:3) menghasilkan isolat pada fraksi 1, 2, 3, 4, 5, dan 6 adanya serapan panjang gelombang yang menujukan bahwa adanya senyawa flavonoid dengan gelombang yang berbeda pada tiap fraksi. dan pada spektro FTIR adanya gugus fungsi O-H. C-H, C=O, C-O dan C=C yang terkandung pada fraksi 1, 2, 3, 4, 5, dan 6. Kesimpulan: ekstrak daun heredong memilik senyawa flavonoid yaitu golongan flavom, flavonol, auron, antosianidin dan flovanon.
 
Kata Kunci: Ekstrak Daun Heredong, Flavon, Flavonol, Auron, Antosianidin, Flovanon, Spektro UV-Vis, FTIR
Potensi Tabir Surya Ekstrak Etil Asetat Rimpang Lempuyang Gajah (Zingibert zerumbert (L). Smith)
Authors: Mukhriani  , Doloking Haeria , Dwi Wahyuni Leboe  , Hariratul Jannah
Published: September 2024

Abstrak
Pendahuluan:Tabir surya adalah suatu zat atau bahan yang dapat melindungi kulit terhadap radiasi sinar ultra violet. Efektivitas sediaan tabir surya didasarkan pada penentuan nilai Sun Protection Factor (SPF), persentase eritema dan pigmentasinya, yang menunjukkan kemampuan produk tabir surya dalam melindungi kulit dari paparan sinar UV. Tujuan: Penelitian ini dilakukan dengan tujuan untuk mengetahui potensi tabir surya dari ekstrak etil asetat rimpang lempuyang gajah. Metode: Metode spektrofotometer UV-Vis digunakan untuk menentukan nilai IC50 dan nilai potensi tabir surya. Hasil: Berdasarkan hasil yang diperoleh menunjukkan bahwa nilai IC50 sebesar 98,109 ppm dan vitamin C sebesar7,79 ppm. Hasil nilai %Transmisi eritema dapat dinyatakan bahwa konsentrasi 150 ppm, 300 ppm, dan 450 ppm yang didasarkan pada nilai %Transmisi eritema berturut-turut sebesar 10,904%, 9,121%, 6,568% yang termasuk kategori Regular suntan yang berada pada range (6-12%), sedangkan untuk nilai %Transmisi pigmentasi pada konsentrasi 150 ppm dan 300 ppm sebesar 58,921%, 50,557% yang termasuk kategori Ekstra protection yang berada pada range (42-86%), untuk konsentrasi 450 ppm sebesar 40,720% yang termasuk kategori Total block yang berada pada range (3-40) dan untuk nilai SPF ekstrak rimpang lempuyang gajah memiliki nilai ratarara dari konsentrasi 150 ppm, 300 ppm, dan 450 ppm sebesar 2,588, 2,967, dan 3,630 termasuk dalam kategori proteksi minimal. Kesimpulan: Ekstrak Rimpang lempuyang gajah (Zingibert zerumbert(L) Smith) dikategorikan sebagai suntan yaitu suatu bahan yang dapat menyerap sebagian besar UV-B dan menyerap sedikit UV-A.
Kata kunci: Tabir surya, Antioksidan, DPPH, spektrofotometer UV-Vis, Zingiber zerumbet (L).
Analisis Tingkat Pengetahuan Tenaga Teknis dan Non Teknis Universitas X terhadap Vaksin Covid-19
Authors: M. Rusdi  , Gemy Nastity Handayany  , Nur Asma  , Munawwarah
Published: September 2024

Abstrak
Pendahuluan: Pandemi COVID-19 menjadi masalah utama yang dihadapi dunia saat ini. Pandemi tidak hanya mempengaruhi sektor kesehatan tetapi juga mempengaruhi aspek sosial, ekonomi dan pendidikan termasuk di Universitas X. Untuk menanggulangi pandemi COVID-19 pemerintah melaksanakan program Vaksinasi COVID-19. Tujuan: untuk mengetahui tingkat pengetahuan Tenaga teknis dan Non teknis Universitas X terhadap vaksin COVID-19. Metode: Penelitian ini merupakan penelitian deskriptif yang menggunakan analisis kuantitatif dengan pendekatan survey. Populasi dalam penelitian ini adalah Tenaga teknis dan Non teknis Universitas X dengan teknik pengambilan sampel accidental sampling dengan jumlah sampel yang didapatkan 100 orang. Instrument yang digunakan yaitu kuesioner yang diberikan kepada tenaga teknis dan non teknis Universitas X. Analisis data menggunakan analisis univariat dengan aplikasi SPSS 26 dan AMOS. Hasil penelitian menunjukkan bahwa tingkat pengetahuan tenaga teknis dan non teknis Universitas X berdasarkan hasil analisis univariat yaitu dari 100 responden, dengan 64% memiliki tingkat pengetahuan yang baik dan 36% responden memiliki tingkat pengetahuan cukup. Berdasarkan hasil analisis SEM didapatkan yaitu berdasarkan indicator pernyataan yang paling dominan yaitu pernyataan ke 16. Kesimpulan: Tenaga teknis dan Non teknis Universitas X memiliki pengetahuan yang baik tentang vaksin COVID-19
Kata kunci: COVID-19, Survey, Tingkat Pengetahuan, Vaksin, Analisis Structural Equation Model
Human-centered AI for personalized workload management: A multimodal approach to preventing employee burnout
Authors: Meduri Karthik , Nadella Geeta Sandeep , Gonaygunta Hari , Kumar Deepak , Addula Santosh Reddy , Satish Snehal , Maturi Mohan Harish , Rehman Shafiq Ur
Published: September 2024

This study investigates the impact of artificial intelligence (AI) integration on preventing employee burnout through a human-centered, multimodal approach. Given the increasing prevalence of AI in workplace settings, this research seeks to understand how various dimensions of AI integration—such as the intensity of integration, employee training, personalization of AI tools, and the frequency of AI feedback—affect employee burnout. A quantitative approach was employed, involving a survey of 320 participants from high-stress sectors such as healthcare and IT. The findings reveal that the benefits of AI in reducing burnout are substantial yet highly dependent on the implementation strategy. Effective AI integration that includes comprehensive training, high personalization, and regular, constructive feedback correlates with lower levels of burnout. These results suggest that the mere introduction of AI technologies is insufficient for reducing burnout; instead, a holistic strategy that includes thorough employee training, tailored personalization, and continuous feedback is crucial for leveraging AI’s potential to alleviate workplace stress. This study provides valuable insights for organizational leaders and policymakers aiming to develop informed AI deployment strategies that prioritize employee well-being.
Rethinking governance of public health emergencies aboard international cruise ships in the post-COVID era
Authors: Li Ke
Published: September 2024

The COVID-19 outbreak on international cruise ships during the early stages of the pandemic has exposed deficiencies in the governance of public health emergencies within the framework of existing international law. These deficiencies encompass various aspects, including the shortcomings of the system of flag state jurisdiction, the vague definition and reasonableness of governments’ “additional health measures” as stipulated in the International Health Regulations (IHR) of 2005, the role of World Health Organization (WHO) in the protection of the fundamental rights of passengers and crew members during epidemic outbreaks on cruise ships, the application of the free pratique rule under the international health law, and other challenges that have not been adequately addressed in current international law. In the post-COVID era, it is essential to revisit these core issues of international law and reassess the allocation of responsibilities among all evolving actors to foster effective multilateral cooperation in epidemic control. This paper adopts the “Diamond Princess” incident as a case study, examining how such public health emergencies pose challenges to international laws, particularly when they occur within the context of a cruise ship. The paper argues that cooperation on global health emergencies will continue to be a challenge until responsibility is more clearly allocated among stakeholders. Additionally, the paper formulates three principles for enhancing governmental cooperation, namely the fairness principle, the nationality principle, and the principle of common but differentiated responsibilities. It is advisable to carefully consider these key principles when reevaluating the international laws on public health emergencies in the post-COVID era.
Design of eco-cultural city tourism village development model through creative-based tourism towards a sustainable creative industry
Authors: Setyaningsih Wiwik , Syawaludin Ahmad , Winarto Yosafat , Yuliani Sri
Published: September 2024

The sustainability of the creative industry through creative-based tourism in the Laweyan Tourism Village requires the support of a sustainable and inclusive development model for local communities. This research aims to present the design of a tourist village development model that applies the eco-cultural city concept as a Surakarta City Perspective through creative-based tourism towards creative industries. This research uses a qualitative approach with a descriptive exploratory method. Data collection techniques use interviews with key informants. Empirical observation using cultural mapping as identification of physical mapping of spatial layout, build ings and environment, as well as cultural landscapes for tangible and intangible cultural assets of the community in the local landscape in the Laweyan tourist village. Content analysis is applied as a research data analysis method. The research results provide an overview of the design of the creative-based tourism village development model towards a sustainable creative industry including aspects attraction, accessibility, amenities, and ancillary, and green tourism. Model design requires commitment and participation from the government and private sector in collaborating with sustainable tourist village development forums.
Effect of Ultrasound Pretreatment on the Retention of Loquat Phenolics and Antioxidants during Tray and Freeze-Drying
Authors: Öner Manolya Eser , Özkan Gülay , Doğan İlayda , Esatbeyoglu Tuba , Çapanoğlu Güven Esra
Published: September 2024

In this study, the effect of ultrasound (US) pretreatment (600W for 30 min) prior to tray drying (TD) (461°C at 1.10 m/s) and freeze drying (FD) (-58C at 0.001 mbar) on the quality characteristics of loquat cubes was investigated. US pretreatment in TD demonstrated a significant decrease in drying time (19.67%) and an increase in drying rates (22.23%, p
Ultrases İşleminin Enzim Aktivasyonu Üzerine Etkileri
Authors: Dağbağlı Seval
Published: September 2024

Ultrases (ultrason) işlemi, özellikle gıda, biyoteknoloji ve biyofarmasötik endüstrileri olmak üzere çeşitli alanlarda kullanılan yeşil ve etkili bir termal olmayan işlem tekniği olarak son yıllarda dikkat çekmektedir. Ultrason işleminin bu endüstrilerde önemli uygulamalara sahip enzimatik reaksiyonlarda etkilerinin belirlenmesi önemlidir. Yoğun ultrason koşulları enzim inaktivasyonuna neden olurken ılımlı ultrason koşullarında (yani düşük yoğunluk ve kısa süre) enzim aktivitesinin arttırılabildiği bildirilmektedir. Ultrason işlemi serbest enzime, substratta ve immobilize enzime uygulanabilir. Ultrasonikasyon işleminin enzim ve substrat yapısı ile enzimatik hidroliz kinetiği ve termodinamik parametreleri üzerine etkileri bulunmaktadır. Bu işlem, moleküllerin yapısını olumlu şekilde değiştirebilir ve böylece enzim aktivitesi ile ürün verimi arttırılabilir. Bu derlemede ultrason işleminin serbest enzim, immobilize enzim ve substrata uygulanması sonucu meydana gelen moleküller yapıdaki ve enzim aktivasyonundaki değişiklikler, bu değişikliklerin mekanizmaları ve bu mekanizmaları etkileyen faktörler ile ilgili bilgiler verilmiştir.
Effects of Ultrasonic Power and Intensity of Mechanical Agitation on Pretreatment of a Gold-Bearing Arsenopyrite
Authors: Hong Won Chol , Kim Ye Yong , Kwon Chang Dok , So Kwang Chol
Published: September 2024

In this paper, the effects of an ultrasonic power and the intensity of mechanical agitation for pulp on alkaline pretreatment of gold-bearing arsenopyrite were investigated. The effect of pulp temperature on leaching efficiency in alkaline pretreatment of arsenopyrite was investigated under ultrasound and non-ultrasound conditions. Pre-treatment was followed by gold leaching tests with a cyanide solution. Compared with the nonultrasound condition at the temperature of 60 XC, arsenic extraction and gold extraction was increased 20 %, 14.4 %, respectively, in the presence of ultrasound at ambient temperature. The characteristics of the ultrasonic power level as a function of the intensity of mechanical agitation were evaluated by a numerical simulation with CFD software – Ansys Fluent. The simulation results demonstrated that the stronger intensity of mechanical agitation, the lower ultrasonic power level. These results were proved through leaching experiments at different rotation speeds of impeller and ultrasonic powers. The study results demonstrate that the ultrasound is an effective factor for pretreatment of gold bearing arsenopyrite and gold extraction is related to an ultrasonic power and the intensity of mechanical agitation.
Intensification of photocatalytic hydrogen generation from glycerol under natural sunlight: Cocatalyst effects and solar applicability
Authors: Bednarczyk Katarzyna , Gmurek Marta
Published: September 2024

This study focuses on intensifying photocatalytic hydrogen generation from glycerol under natural sunlight, examining the effects of cocatalysts and solar applicability. Cocatalysts are commonly employed to enhance the separation of photo-generated charges, while sacrificial agents suppress electron-hole recombination. Utilizing crude glycerol and solar light for photocatalytic hydrogen generation presents a promising avenue. The main objective was to enhance H2 production from a glycerol-containing solution by selecting parameters and scaling up the process using various reactor types and research systems. The study investigated the applicability of natural sunlight for photocatalytic H2 production and examined the influence of organic impurities on H2 production from synthetic and real crude glycerol. Scaling up the process intensified the rate of hydrogen generation, with the highest production achieved using TiO2 loaded with 0.5% Pt under visible light irradiation. It was concluded that H2 can be generated by reducing protons from both water and glycerol, the sacrificial agent. Glycerol and water, in the presence of photodeposited Pt or Pd on TiO2 and light, are converted to H2 through photocatalytic water-splitting and light-induced oxidation of glycerol. The successful application of photocatalysts under natural sunlight for hydrogen production was confirmed, highlighting the potential for sustainable and scalable green hydrogen generation.
Electrospun carbon nanofibers (CNFs) modified with needle-like SiC nanostructures
Authors: Pazdyk-Słaby Weronika , Długoń Elżbieta , Zientara Dariusz , Fraczek-Szczypta Aneta
Published: September 2024

Electrospun carbon nanofibers (CNFs) are an excellent material which can possess a wide range of properties through controlling the parameters of the electrospinning process, as well as through thermal treatment. At the same time, CNFs are an excellent substrate for carrying out modifications, both volumetric, at the stage of precursor preparation, and surface modifications. Different methods of introducing various silicon carbide (SiC) precursors into the spinning solution enables the formation of needleshaped SiC nanostructures on the CNF surface. This work presents an attempt to obtain nanofibrous carbon materials modified in volume and on the surface with SiC precursors, along with their characteristics. The most promising method of creating needle-like SiC nanostructures on the surface of CNFs is the use of volume modification with polysiloxane and silanization of the surface of the CNFs in a organosilicon sol solution.