bluuebunny/crossref_metadata_2025_split huggingface dataset:
Earthquake Resistance of Masonry-Infilled RC Frames Strengthened with Expanded Metal
Authors: Kusonkhum Wuttipong , Tankasem Phongphan , Leeanansaksiri Anuchat 
Published: January 2025

This research aimed to investigate the compressive strength of lightweight concrete walls before and after reinforcement using the expanded metal reinforced with ferrocement jacketing method and to evaluate the performance level of lightweight concrete walls in reinforced concrete rigid frames. Masonry infill walls were tested using seven samples of lightweight concrete with an average size of 600×600 mm under axial force. The study results were found that in the part of control, non-plastered lightweight concrete wall (CWL) bore an average compressive strength of 2.52 MPa, and plastered lightweight concrete (WPL) bore an average compressive strength of 2.95 MPa. It indicated that plastering on masonry infill walls was able to bear higher impact strength at 1.17 times due to the bonding force of plastering cement at the masonry infill wall. Lightweight concrete walls reinforced with expanded metal, which were able to bear the maximum compressive strength, were lightweight concrete walls reinforced with 1 layer of expanded metal (WPL-E1) that bore the maximum compressive strength capacity, which was equal to 6.40 MPa. When compared with plastered lightweight concrete walls (WPL) samples, masonry infill walls had 2.16 times higher strength capacity. It was shown that reinforcement using the ferrocement technique significantly increased compressive strength capacity. However, in this research, WPL samples, the plastered lightweight concrete walls, were selected as the control samples, and WPL-E1 test samples with the highest compressive strength were used to evaluate the performance level of the reinforced concrete rigid frame. It was found that lightweight concrete walls reinforced with expanded metal were able to bear higher strength at 1.92 and 3.66 times, respectively. When compared to unreinforced masonry infill wall samples and the bare rigid frame, reinforcement with expanded metal effectively was able to increase the strength and stiffness of the reinforced concrete rigid frame. Doi: 10.28991/CEJ-2024-010-12-017 Full Text: PDF
The Performance of Geosynthetic Reinforcement Road Pavement Over Expansive Soil Subgrade
Authors: Hairulla . , Harianto Tri , Djamaluddin Abdul Rahman , Arsyad Ardy 
Published: January 2025

One of the problems faced in infrastructure development, especially roads, is problematic soils, including expansive soils, which are distributed around 20% of national road construction in Indonesia. Geosynthetics are reinforcement materials that can be used to overcome problematic soils. The study aimed to determine the behavior of expansive soil with geosynthetic reinforcement against swelling potential and swelling pressure in the wetting cycle. The research utilized an experimental approach involving three test concepts. The first was a control test without reinforcement. The second included a combination of geogrid, geotextile, and geomembrane layers, while the third utilized an H2Rx reinforcement layer. Analysis was carried out on the development potential and pressure; the test was carried out for 57 days using displacement sensors and pressure sensors, and data recording was carried out every 5 seconds using a computer. The findings from the results of this study indicated that the presence of reinforcement using a geosynthetic reinforcement layer can overcome the behavior that occurs in expansive soils with swelling potential and swelling pressure. The novelty of this research is the inclusion of a geosynthetic reinforcement layer on expansive soil combined with a drainage layer in the pavement subgrade. Doi: 10.28991/CEJ-2024-010-12-020 Full Text: PDF
Comparison of Multi-Objective Metaheuristics for Discrete Optimization of Steel Trusses Using Direct Analysis
Authors: Tran Trung-Hieu , Vu Quoc-Anh , Truong Viet-Hung , Nguyen Ngoc-Thang 
Published: January 2025

This study enriches structural optimization research using direct analysis for steel truss structures, which is often hampered by high computational demands. The main objective of this work is to evaluate multi-objective optimization algorithms in truss sizing optimization with discrete variables, focusing on minimizing total mass and controlling inter-story drift under multiple load combinations. Five leading multi-objective metaheuristic algorithms were assessed: SPEA2, GDE3, NSGA2, MOEA/D, and the novel MOEA/D-EpDE, which uniquely combines MOEA/D with Dynamical Resource Allocation and pbest Differential Evolution. Four performance indicators, such as Generational Distance (GD), GD Plus (GD+), Inverted GD+ (IGD+), and Hypervolume (HV), were utilized. Findings from four truss optimization problems revealed that all considered algorithms located feasible optimal solutions, but MOEA/D-EpDE excelled, consistently securing the lowest GD, GD+, IGD+, and anchor point values, along with the highest HV values in most scenarios. This indicates its superior capability in addressing the problem efficiently. NSGA2 and MOEA/D also performed well, outperforming GDE3 and SPEA2. This study is pioneering in its application of these algorithms to steel truss optimization via direct analysis, highlighting the potential for advanced computational techniques in structural engineering. Doi: 10.28991/CEJ-2024-010-12-07 Full Text: PDF
Implementing a Therapeutic Music Program in the ICU
Authors: Kleinpell Ruth , Schlesinger JJ , Gururaja Akash , Michel M.B. 
Published: January 2025

Introduction: In an effort to promote a healing environment in the intensive care unit (ICU), the use of therapeutic music offers an opportunity to expand patient and family centered care initiatives. However, limited information is available on the benefits of therapeutic music for patients, family members and clinical staff.
Objective: The objective of this study was to implement a therapeutic music program in the ICU setting. Using musicians who were processed as hospital volunteers, the program was implemented starting in the medical ICU and expanding to 4 other clinical ICUs at an academic medical center.
Methods: Institutional review board approval for the study was received. Musicians provide live music several times a week, typically in the late afternoon, visiting patient rooms and playing music in the hallways for those patients with isolation precautions (Figure 1). The volunteer musicians play classical genre music songs for patients using a variety of instruments including piano, cello, viola, violin, oboe, flute, and saxophone. Non-identifiable data was collected from patients, clinical nurses, and musicians using Research Electronic Data Capture (REDCap) in several descriptive studies. Responses to five open ended questions assessed perceptions of the therapeutic music. The qualitative data was analyzed using NVivo, a qualitative data analysis computer software, to sort into themes.
Results: Majority (92% ) of patients indicated that music was a significant part of their life and 90% indicated that they enjoyed the experience and would participate in the future. Clinical nursing staff and musicians highlighted the benefits of having live music for patients to provide a momentary disruption to the busy ICU environment. Major themes reflected the calming and relaxation effects of music, and the benefits of having live music played by musicians in the ICU.
Conclusions: The results suggest that therapeutic music is beneficial in helping to promote a healing environment in the ICU. Additional ongoing research is exploring the impact of different music genres and the ideal exposure “dose” of therapeutic music, as well as the potential to impact patient outcomes including the development of delirium in the ICU.
References:
Bruder AL, Gururaja A, Narayani N, Kleinpell R, Schlesinger JJ. (2024) Patients' Perceptions of Virtual Live Music in the Intensive Care Unit. American Journal of Critical Care. 1;33(1):54-59. doi: 10.4037/ajcc2024140
Schlesinger JJ, Pearson M, O'Briant D, Bose J, Yang ST, Li J, Rice T, Kleinpel R. (2022) Implementing and Evaluating a Pilot Therapeutic Music Program in the Intensive Care Unit. International Journal of Critical Care;16:2. doi.org/10.29173/ijcc44
What's in a Name? The Impact of Labels on Attitudes Toward Exonerees
Authors: Hamilton Karli , Kukucka Jeff , Allen Erik , Clow Kimberley 
Published: January 2025

As exonerations have increased, so too has research into exonerees’ post-release challenges, including stigma, discrimination, mental illness, and inadequate support. In so doing, researchers and advocates have described this population in varied ways, which may elicit differing attitudes. To explore that possibility, 188 citizens read a tweet in which we varied the label ascribed to a newly released prisoner (i.e., wrongly convicted, exonerated, innocent, or control), then reported their attitudes. Contrary to expectation, different labels did not produce different judgements of the individual’s character, criminality, or deservingness of support, which were consistently significantly more favourable for exonerees (regardless of label) than other formerly incarcerated people (control). Troubling, however, was that the terms wrongly convicted, exonerated, and innocent still led to some concerns that the individual was somehow involved in—or had committed—the crime for which he was erroneously convicted, that he may have committed other crimes in the past, and that he might commit crimes in the future. Implications are discussed in terms of stigma theory, growing media attention to wrongful convictions, and the disconnect between public and government support for post-release services.
Comparison of K-Means and K-Medoids in Clustering Regency/City in West Sumatra Province Based on Environmental Indicators
Authors: Robiati Silfi , Fitria Dina , Vionanda Dodi , Sulistiowati Dwi 
Published: January 2025

The Environmental Quality Index is an index that describes the condition of environmental management results nationally, and generalises from all regencies/cities and provinces in Indonesia. Although the Environmental Quality Index of West Sumatra Province has increased, there are still regencies/cities in West Sumatra Province have decreasing Environmental Quality Index. Therefore, it is necessary to conduct further analysis, one of which is to form a group of regencies/cities into a group according to their similarities or characteristics. This study aims to compare the K-Means and K-Medoids methods in grouping regencies/cities in West Sumatra Province based on environmental quality indicators in 2023. The data used in this research is secondary data, which is orginally the publication of Central Bureau of Statistics namely Sumatera Barat Dalam Angka in 2024. The research compares the K-Means cluster method and the K-Medoids cluster method. It concludes K-Means better than K-Medoids methods based on DB index with three clusters. First cluster has 12 regencies/cities with a high average air quality index, the second cluster has 6 regencies/cities that have small amounts of waste, and the third cluster has 1 city with a high average water quality index and land quality index, but a large amount of waste.

Keywords: Cluster, Comparison, Environmental, K-Means, K-Medoids
Analysis of Kidney Tissue Keting Mystus gulio (Hamilton, 1822) in Gembong and Rejoso River, Pasuruan, Indonesia
Authors: Lestariaji Chandika , Herawati Endang Yuli , Arfiati Diana , Djaduk Saddam Langkung , Ristianadewi Priska , Anjasmara Aang Setyawan , Valina Rahmi 
Published: January 2025

Mystus gulio is a local fish that can open up opportunities for the community. Pollution causes water quality to decrease. Fish are an important indicator in the aquatic environment, Histological analysis can be said to have a function as a natural biological sign to determine the health condition of fish which can be seen from changes in tissue structure in organs exposed to pollutants. Organs that’s vulnerable to water pollution is kidneys. Kidney tissue is susceptible to damage because kidneys function as a means of filtration and excretion, The method used in this research is descriptive method. Fish were caught from river than dissected to remove the kidneys for histopathological analysis using the HE method, analyzed using the scoring method. The results obtained in both rivers were that fish kidneys caught in the Gembong River were categorized as moderately damaged, while fish kidneys caught from the Rejoso River were categorized as lightly damaged. This is in line with the results of the heavy metal lead from both rivers. Where the yield of lead in fish kidneys caught from the Gembong is on average higher than the yield from fish kidneys caught from the Rejoso.
New Insights about Equilibrium Constants, pKa, of Purine Nitrogenous Bases: The Case of Adenine and Guanine. A UV-Vis Spectrophotometric Study at I = 0.4 M
Authors: Martínez Guerra Jorge , Rojas Hernández Alberto , Gon´zález Garrido Luis Diego , Ramírez Silva María Teresa 
Published: January 2025

In the present work, novel experimental evidence about acidity constants has been found for adenine and guanine in aqueous medium. Despite being molecules widely studied there is some inconsistences about their chemical speciation in the literature. The study that we presented by UV-Vis spectrophotometry and subsequent data processing using the SQUAD software allowed the determination of three acidity constants for both adenine (pKa1 = 3.361± 0.102, pKa2 = 9.056 ± 0.091 y pKa3 = 10.132 ± 0.057) and guanine (pKa1 = 3.402± 0.028, pKa2 = 9.708 ± 0.022 y pKa3 = 12.721 ± 0.015) at ionic strength 0.4 M and T = (25.0 ± 0.1) °C. Being theses bases fundamental components of DNA and RNA, it is relevant to know in depth their physicochemical properties to improve the understanding of the biological processes involved in the transmission of genetic information, as well as their implications in medicine, biotechnology and molecular biology.

Resumen. En el presente trabajo se muestra evidencia experimental novedosa de las constantes de acidez de la adenina y de la guanina en medio acuoso. A pesar de ser moléculas ampliamente estudiadas existen algunas inconsistencias reportadas en la literatura acerca de su especiación química. El estudio por espectrofotometría de UV-Vis y posterior tratamiento de datos usando el software SQUAD permitió determinar tres constantes de acidez tanto para la adenina (pKa1 = 3.361± 0.102, pKa2 = 9.056 ± 0.091 y pKa3 = 10.132 ± 0.057) como para la guanina (pKa1 = 3.402± 0.028, pKa2 = 9.708 ± 0.022 y pKa3 = 12.721 ± 0.015) a fuerza iónica 0.4 M y T = (25.0 ± 0.1) °C. Dado que estas bases nitrogenadas son componentes fundamentales del ADN y del ARN, es relevante conocer a profundidad sus propiedades fisicoquímicas para mejorar nuestro entendimiento en los procesos biológicos donde estas bases se encuentran involucradas por ejemplo; en la transmisión de información genética así como sus implicaciones en campos como la medicina, biotecnología y la biología molecular.
Tetracycline Speciation Study in Aqueous Medium
Authors: González-Garrido Luis Diego , Guzmán-Hernández Dafne Sarahia , Rojas-Hernández Alberto , Rodríguez-Barrientos Damaris , Juárez-Gómez Jorge , Ramírez Silva María Teresa 
Published: January 2025

Tetracycline is a broad-spectrum antibiotic considered an emerging contaminant with major effects on human health and the ecosystems. Using the techniques of UV absorption spectroscopy and capillary zone electrophoresis, the characterization of tetracycline in aqueous medium is presented. Likewise, four acidity constants were determined: pKa1 = (3.277 ± 0.067), pKa2 = (7.397 ± 0.055), pKa3 = (9.349 ± 0.039) and pKa4 = (11.278 ± 0.024). Finally, capillary zone electrophoresis corroborates the predominance of five tetracycline species (TcH4+, TcH3, TcH2-, TcH2- and Tc3-) and presents a proposal for the deprotonation mechanism for tetracycline in aqueous medium.

Resumen. La tetraciclina es un antibiótico de amplio espectro, considerado como contaminante emergente con grandes afectaciones a la salud humana y el ecosistema. Mediante las técnicas de espectroscopía de absorción de UV y electroforesis capilar de zona se presenta la caracterización de la tetraciclina en medio acuoso. Así mismo se determinaron cuatro constantes de acidez: pKa1 = (3.277 ± 0.067), pKa2 = (7.397 ± 0.055), pKa3 = (9.349 ± 0.039) y pKa4 = (11.278 ± 0.024). Finalmente, a partir de electroforesis capilar de zona se corrobora el predominio de cinco especies de tetraciclina (TcH4+, TcH3, TcH2-, TcH2- y Tc3-) y se presenta una propuesta del mecanismo de desprotonación para tetraciclina en medio acuoso.
Contribution to the Electrochemical Sensors and Biosensors field by the Electrochemical and Analytical Chemistry research areas at UAM-I
Authors: Valdés-Ramírez Gabriela , Hernández-Ramírez Francisco , Galicia Laura 
Published: January 2025

An overview of the electrochemical sensors and biosensors developed at Universidad Autónoma Metropolitana Unidad Iztapalapa, is summarized by describing the principal contributions in the field performed by the Electrochemistry and Analytical Chemistry research areas of the Chemistry Department. Here, we divided the contributions into four main groups: fabrication and characterization of surfaces, electrochemical sensors and biosensors with environmental applications, electrochemical sensors and biosensors with applications in the food industry, and electrochemical sensors and biosensors with biomedical applications in the healthcare industry; the foundation of the Institution, the creation of the Electrochemistry and Analytical Chemistry research areas, and the first electrochemical sensor development at the institution are cited in the historical context of the scientific electrochemical sensors and biosensors timeline.

Resumen. Una visión general de los sensores y biosensores electroquímicos desarrollados en la Universidad Autónoma Metropolitana Unidad Iztapalapa, se resume describiendo los principales aportes en el campo realizados por las áreas de investigación de Electroquímica y Química Analítica del Departamento de Química de esta institución. Hemos dividimos las contribuciones en cuatro grupos principales: fabricación y caracterización de superficies, sensores y biosensores electroquímicos con aplicaciones ambientales, sensores y biosensores electroquímicos con aplicaciones en la industria alimentaria, y sensores y biosensores electroquímicos con aplicaciones biomédicas en la industria para el cuidado de la salud; la creación de la Institución, las áreas de investigación de electroquímica y química analítica, así como el primer sensor electroquímico desarrollado en la Institución, se citan en el contexto histórico de la cronología científica de los sensores y biosensores electroquímicos en el mundo.
Non-Isocyanide-Based Three-Component Reactions: From Strecker to Nowadays
Authors: Morales-Salazar Ivette , Bouillon Jean-Philippe , González-Zamora Eduardo , Islas-Jácome Alejandro 
Published: January 2025

Almost two centuries have passed since Strecker synthesized for the first time the α-aminoacid DL-alanine via a sequential combination of acetaldehyde with aqueous ammonia and hydrogen cyanide, coupled to a further hydrolysis of the resulting α-aminonitrile using an acid aqueous solution. Since then, a broad variety of high valued products in various fields of science and technology have been synthesized via three-component reactions (3CRs) or via one-pot methodologies involving 3CRs coupled smartly to further processes like functionalizations, condensations, cross couplings, cyclizations, ring openings, and so on. In the same way, very interesting and useful computational calculations behind understanding reaction mechanisms related to 3CRs, conformational analyses, and energy profiles have been performed. All these topics are on the scope of the present review, which covers selected and elegant based 3CRs (except for the Ugi-3CR or its variants), and other unclassified 3CR-based works from 2010 to nowadays.

Resumen. Han pasado casi dos siglos desde que Strecker sintetizó por primera vez el α-aminoácido DL-alanina mediante una combinación secuencial de acetaldehído con amoníaco acuoso y cianuro de hidrógeno, acoplada a una hidrólisis posterior del α-aminonitrilo resultante utilizando una solución acuosa ácida. Desde entonces, se ha sintetizado una amplia variedad de productos de gran valor en diversos campos de la ciencia y la tecnología mediante reacciones de tres componentes (3CR) o mediante metodologías en un mismo reactor que implican 3CR acopladas a procesos posteriores como funcionalizaciones, condensaciones, acoplamientos cruzados, ciclizaciones, aperturas de anillos, etc. Del mismo modo, se han realizado cálculos computacionales muy interesantes y útiles para comprender los mecanismos de reacción relacionados con 3CR, análisis conformacionales y perfiles energéticos. Todos estos temas están dentro del alcance del presente artículo de revisión, que considera trabajos seleccionados y elegantes basados en 3CRs (excepto Ugi-3CR o sus variantes), y otras 3CRs no clasificadas desde 2010 hasta la actualidad.
Disclosure of HIV Status and Associated Factors Among People Living With HIV/AIDS (PLWHA) in Ibadan, Nigeria
Authors: Temitayo-Oboh AO , Adedokun OO , Asuzu MC 
Published: January 2025

Background: HIV-positive status disclosure has many potential benefits, including increased opportunities for social support, implementation of risk reduction with partners, and improved access to antiretroviral treatment.
Objective: To assess the disclosure status and factors associated with HIV-positive status disclosure among people living with HIV/AIDS (PLWHA) in Ibadan, Southwest Nigeria.
Methods: This descriptive-exploratory cross-sectional study was conducted among PLWHA and assessed antiretroviral therapy at Adeoyo Maternity Hospital, Ibadan. A total of 440 respondents were recruited using a systematic random sampling method. Data was collected using a pre-tested interviewer-administered questionnaire.
Results: The mean age of respondents was 33.4±7.8 years. The majority (375; 85.2%) had disclosed their HIV status to at least one significant person, of which 299 (68.0%) informed their sexual partners. Educated respondents were five times more likely to disclose their status than those uneducated (OR = 5.43). Employed respondents were less likely to disclose their status compared to those who were unemployed (OR = 0.13). Respondents whose partners were HIV positive (OR = 2.89) and those whose partners were HIV negative (OR = 3.55) were more likely to disclose their status compared with those whose partners' HIV status was unknown.
Conclusion: Interventions and adherence counselling should continue to encourage HIV status disclosure, especially among uneducated, employed, and those unaware of the HIV status of their partners.