bluuebunny/crossref_metadata_2025 huggingface dataset:
Durability of Thermoplastic Polyurethane Round Belt Joint with Variations in Heating Methods and Cutting Shapes
Authors: Kusumo Achmad Sabilarrosyad Prawiro , Murdani Anggit
Published: February 2025

Thermoplastic polyurethane round belts are widely used for conveyors in various industries, particularly in the food and beverage industry, due to their flexible and abrasion-resistant characteristics. These belts are also popular in manufacturing industries because of their ease of joint. However, a common issue arises when the conveyor belt breaks during the production process. This problem can be attributed to the lack of parameters in the belt joining process at companies. Operators do not have a standard parameter for the joining process. When there is an improper joining operation of an operator, the conveyor belt could fail earlier than the expected operation time. Therefore, the conveyor belt failure results in the loss of production time. This downtime can reach up to 15 minutes, i.e. the time required for the belt joining process. Previous studies have identified temperature and heating time as factors that influence the strength of the joint, especially when using a heating plate. Therefore, this research aims to determine the optimal parameters by varying the temperature and length of heating time in the joining process. Additionally, the research explored the impact of different cutting forms on the durability of the round belt joint. The results of this study indicate that the optimal temperature and heating time combination is 100°C for 3 seconds, resulting in a joint strength of 25,274 MPa. Furthermore, the triangular joint shape proved to be the most durable, with a record of 10,021 cycles.
Crashworthiness and Deformation Pattern Analysis of Single and Double Wall with Addition Infill Structure
Authors: Bintara Redyarsa Dharma , Choiron Moch. Agus , Zakariya Yahya , Shiddieqy M. Hasbi Ash , Pratama Fajar Adi
Published: February 2025

Ship collisions are a phenomenon that often occurs in maritime transportation. One part of the ship that often experiences damage is the ship's wall (hull). This research aims to analyze and compare deformation patterns, stress distribution, and energy absorption in three wall models, single wall, double wall, and double wall, with the addition of infill structures. The infill structure used Polylactic Acid (PLA) polymer material because it provided convenience in the manufacturing process, while the walls of the test model used Aluminum 6063 material. The test model was developed by carrying out the design process using CAD software. Furthermore, a simulation test was carried out using software based on the finite element method with an explicit dynamic analysis type. Each test model received an impact load at a speed of 10 m/s that was carried out by the impactor. The results showed that the largest total energy absorption occurred in the double wall model with a filler structure (3643.49 J). In addition, the outward deformation pattern occurs in the double wall without a filler structure, while the inward occurs in the model with the addition of a filler structure. There were three types of stress distribution for single wall, double wall, and double wall with the addition of infill structure, namely concentrated stress, inline uniform stress, and a combination of both concentrated and inline uniform stress, respectively.
The Buckeye Wellness Innovator Program: A Quality Improvement Evaluation
Authors: Quaye Nives , Amaya Megan , Johnson Nicole , Melnyk Bernadette , Wapner Andy
Published: February 2025

Background: Wellness champion networks are a best practice strategy to promote and sustain a culture of well-being in organizations and institutions of higher education.
Aim: The purpose of this quality improvement evaluation was to determine program effectiveness and areas of opportunity for a university wellness champion program.
Methods: An anonymous survey was sent to 700 wellness champions, the Buckeye Wellness Innovators (BWIs), to assess program components, identify areas of opportunity, and gather participant feedback.
Results: A total of 202 BWIs (28.8%) responded to the survey. Seventy-five percent reported at least moderate engagement in the role. There was a strong desire among respondents to contribute to the university’s wellness initiative. Areas of opportunity include further colleague engagement in wellness services and programs, enhanced communication from program facilitators, and continued and increased support for the wellness champion role.
Conclusions: Feedback on the program was positive overall. Several areas of opportunity for program improvement were identified. Wellness champions are an effective evidence-based strategy to support a culture of wellness in institutions of higher education and their feedback is important for program quality improvement.
Fourth National Summit on Promoting Well-Being and Resilience in Healthcare Professionals: Abstracts from the Poster Winners
Authors: Building Healthy Academic Communities
Published: February 2025

No abstract available.
Call-Push-Shock: A Community Education Initiative to Strengthen the Out of Hospital Cardiac Arrest Chain of Survival
Authors: McCormack Mary , Zarcone Carole , Hoepper Kendra , Cotter Elizabeth , Moore Geraldine , Veron Dorothy , Lapkowski Kathleen , Flannery Jacqueline , Watters Pamela
Published: February 2025

Background: Out-of-hospital cardiac arrest (OHCA) is a global health concern with an incidence of 8.9 million people annually. More than 350,000 incidences of OHCA occur yearly in the United States, with an average survival of 10%. Provision of bystander cardiopulmonary resuscitation (CPR) and automated external defibrillator (AED) use have been noted to significantly improve survival rates.
Aim: The aim of this quality improvement project was to strengthen the OHCA chain of survival on the university campus and within the surrounding community.
Methods: This was a multifaceted evidence-based quality improvement project involving community CPR/AED education, improving AED awareness, and policy creation.
Results: Participant (n = 759) knowledge of CPR and AED use improved between pre-test (M = 3.34, SD = 1.18) and post-test scores (M = 5.23, SD = 0.82). Participant knowledge of AED locations in areas they frequent improved from 58% to 91%, and comfort level for performing CPR improved from 59% to 97% post implementation. Adoption of a Cardiac Emergency Response Plan for the university was achieved, an additional 23 AEDs were placed on campus and uploaded to an AED location app.
Conclusion: There is strong evidence to support that communities who place an emphasis on strengthening the OHCA chain of survival report better OHCA outcomes.
Bridging Models: Preeclampsia Biomarkers in Salt-Loaded Rats and Human Patients
Authors: Rojasa Deliana , Abad Cilia , Piñero Sandy , Piña Margrego , Proverbio Fulgencio , Marín Reinaldo
Published: February 2025

Preeclampsia, a pregnancy-specific syndrome with multisystem involvement, significantly contributes to maternal and fetal morbidity and mortality. This study compared physiological, fetal, and placental parameters between preeclamptic women and salt-loaded pregnant rats, an established animal model for preeclampsia. We evaluated lipid peroxidation levels in both placental homogenates and red blood cell ghosts, and Ca-ATPase activity in placental homogenates. Additionally, we assessed the effects of magnesium sulfate (MgSO4) treatment on these parameters.

Salt-loaded pregnant rats received 1.8% NaCl solution ad libitum for seven days starting from the 15th day of pregnancy. For analysis, blood and placental samples were obtained from preeclamptic women and the rat model.

Results showed that salt-loaded pregnant rats exhibited similar characteristics to preeclamptic women, including increased lipid peroxidation, and lowered Ca-ATPase activity in placental and red blood cell ghosts. MgSO4 treatment in preeclamptic women and salt-loaded rats modified Ca-ATPase activity and lipid peroxidation levels in red blood cell membranes and placental membranes, bringing values closer to normal values. The reduction in lipid peroxidation by MgSO4 may account for increased Ca-ATPase activity.

This study validates the salt-loaded pregnant rat model as a valuable tool for investigating preeclampsia, offering insights into the condition's pathophysiology and potential therapeutic interventions.
The Impact of Elexacaftor/Tezacaftor/Ivacaftor on Sinus Disease, Olfaction, and the Sinonasal Microbiome in Patients with Cystic Fibrosis
Authors: M. Cook Lauren , Martin W. Jared , Mirmozaffari Yasine , Benaim Ezer , Vuncannon Jackson , Cromwell Cristine , Ebert Charles , Thorp Brian , Senior Brent , Kimple Adam
Published: February 2025

Background: Elexacaftor/tezacaftor/ivacaftor (ETI) is a highly effective triple modulator therapy that has significantly reduced morbidity and mortality in patients with cystic fibrosis. Beyond pulmonary improvements, ETI’s impact on sinus disease, olfactory function, and the sinonasal microbiome is just beginning to be understood. We present a contemporary review of sinonasal changes in patients with cystic fibrosis after ETI initiation.

Methods: We conducted a literature review using PubMed and Google Scholar. Articles about ETI’s impact on sinonasal disease and symptoms in patients with cystic fibrosis published in English from 2019 to August 2024 were eligible for inclusion. Studies were selected based on their contribution to understanding changes in sinus disease severity, sinonasal quality of life, olfactory function, and the sinonasal microbiome in patients with cystic fibrosis after starting ETI.

Results: An initial query yielded 41 articles. After screening abstracts, 23 articles were chosen for further review. A total of 19 articles met full inclusion and exclusion criteria. Evidence suggests ETI significantly improves sinus disease in patients with cystic fibrosis, with clinical, radiographical, and quality of life improvements observed within days to months and persisting for up to two years. Studies on olfactory changes showed mixed results, with persistent dysfunction demonstrated on psychophysical tests despite subjective improvements. ETI also alters the sinonasal microbiota, by reducing pathogenic bacteria and total bacterial load, though the clinical implications remain under investigation.

Conclusions: ETI therapy markedly improves both objective evidence of sinus disease and sinonasal quality of life in patients with cystic fibrosis. Despite some improvements in olfactory dysfunction, objective tests consistently report refractory impairment post-ETI. Changes in the sinonasal microbiome are evident, but dysbiosis remains a concern. Further research is needed to clarify the long-term effects of ETI on olfactory dysfunction and the sinonasal microbiome, especially in younger populations.
New-Onset of Diffuse Systemic Sclerosis Following COVID-19 Vaccination: 3rd Case Described
Authors: Silva Alisson , Martinez Ana , Carvalho Jozélio
Published: February 2025

Systemic sclerosis (SSc) has been reported in rare cases following COVID-19 vaccination, raising concerns about potential autoimmune triggers. Herein, we describe the third documented case of diffuse SSc post-vaccination in a 22-year-old woman with no prior autoimmune history. Symptoms, including Raynaud's phenomenon, polyarthritis, and sclerodactyly, emerged within a month after the first dose of the Pfizer-BioNTech vaccine. Laboratory and clinical evaluations confirmed the diagnosis, with no evidence of interstitial lung disease or internal organ involvement. Previous reports and the temporal association suggest a potential role of vaccination in SSc onset, emphasizing the need for further research into autoimmune risks linked to immunization.
Healthcare Leadership: How Do We Maximize Patient Satisfaction and Loyalty in Healthcare Facilities?
Authors: Paul Jijo
Published: February 2025

Patient satisfaction and loyalty are critical components of healthcare organizations for success and profitability, and this can be accomplished by providing high-quality patient services. The purpose of this study is to understand the influencing factors of patient loyalty by maximizing patient satisfaction in healthcare facilities to enhance the organizational reputation and profits; moreover, discuss various perspectives on patient satisfaction, determining patient requirements, reliability, validity, questionnaire/ instrument construction, sampling methods, satisfaction and patient experience, and patient loyalty measurement.

A systematically collected information from published journal articles used to measure hospital patient satisfaction and loyalty for organizational reputation and profitability. Online databases, such as PubMed, Google Scholar, MEDLINE, medRxiv, and Research Gate, were used to gather journal -published articles. Patient-centered care at every touchpoint in healthcare delivery is crucial for patient satisfaction and loyalty, and the providers can enjoy stable revenue through high patient retention, reputation, and seamless referrals from delighted patients. Regarding reliability and validity, the best practice is to test and report these parameters in new constructs to ensure accuracy and consistency; moreover, the leaders should use appropriate statistical sampling techniques to measure patient loyalty when gathering sample data.
Nutritional and metabolic parameters of sheep fed extruded roughage
Authors: Oliveira Karla Alves , Siqueira Marco Túlio Santos , Oliveira Marcela Rodrigues de , Dutra Thamiris Oliveira , Sousa Luciano Fernandes , Macedo Júnior Gilberto de Lima
Published: February 2025

The search for technologies to increase productivity of the herds, without increasing production costs, brings a positive highlight to extruded feeds, since these products act to maximize digestive efficiency. The objective was to evaluate the effect of using different levels of inclusion of extruded roughage to replace corn silage on nutritional and metabolic parameters in sheep. For this, 20 ewes aged over three years were used, housed in metabolic cages, distributed in a completely randomized design in four treatments, which consisted of different levels of inclusion of extruded roughage to replace corn silage (20%, 40%, 60% and 80%). Dry matter intake (DMI) and water intake were calculated by the difference between what was offered and what was left over. Blood glucose and energy and protein metabolites were obtained through blood collection by jugular venipuncture and subsequent laboratory analyses, and feeding behavior by observation every 5 min. for 24 h. DMI and water intake increased linearly with the inclusion of extruded roughage in the diet. The greater inclusion of extruded roughage reduced the total chewing time, consequently increasing the efficiency of ingestion, rumination and total chewing.  The inclusion of extruded roughage in the diet of sheep increases the dry matter intake, without reducing the digestibility of nutrients, reducing the time spent on chewing.
ASPECTS OF MELIPONICULTURE WITH EMPHASIS ON THE GENUS SCAPTOTRIGONA
Authors: Benites Alessandra Fernandes Gonçalves , Souza Tuan Henrique Smielevski de , Oliveira Wendy Guadalin de , Figueira Cinthia Leão , Toledo Vagner de Alencar Arnaut de
Published: February 2025

Meliponiculture is the rational exploitation of stingless bees, in which different species of bees are exploited. This diversity ensures differences in morphological and biological aspects, nesting habits, resource gathering behaviors, defense and productivity. Knowledge of the aspects of this diversity of bees makes it possible to understand and disseminate technical-scientific information. However, the difficulty of obtaining knowledge in this area that is on the rise is something that hinders the dissemination of scientific knowledge. This review aims to disclose the importance of meliponiculture, its main aspects and emphasize the productive potential of the genus Scaptotrigona.
Remaining straw on soil fertility and sugarcane productivity in the cutting periods
Authors: Silva João Alfredo Neto da , Souza Cristiano Márcio Alves de , Arcoverde Sálvio Napoleão Soares , Kuruhara Carlos Hissao , Silva Cesar José da
Published: February 2025

The straw remaining from the sugarcane harvest can influence soil fertility and the crop in the field, depending on the amount and time these residues remain in the soil and the relationship they establish. with abiotic factors and microorganisms that act in the process. The objective was to identify the remaining straw levels (0; 5; 10 and 15 Mg ha-1) on soil fertility keep and sugarcane productivity (third cutting), in tree periods cuttings - 1 (variety RB 855156), 2 (variety RB 835486) and 3 (variety RB 835054). For chemical attributes, samples were collected from soil with deformed structure at depths of 0-5; 5-10; and 10-15 cm, after the sugarcane harvest in 2012, before the establishment of the straw levels (initial) and after the ratoon harvest in the 2013 harvest (final), in periods cuttings 1, 2 and 3, respectively. the maintenance of 15 Mg ha-1 of crop residues does not increase nutrient levels in the surface soil layers, nor does it result in a reduction in organic matter values in the surface soil layers after one year of sugarcane cultivation, even with the complete removal of crop residues. There is feasibility for partial removal of crop residues without affecting soil chemical attributes in the subsequent crop season, considering that the maintenance of 5 Mg ha-1 promotes maximum productivity of stalks and sugars in the late-season harvest (3rd period).
Soil chemical attributes after the superficial distribution and without incorporation of limestone doses
Authors: Sampaio Marinez Carpiski , Oliveira Paulo Sérgio Rabello de , Rego Carlos Augusto Rocha de Moraes , Mattei Eloisa , Piano Jeferson Tiago , Santos Reginaldo Ferreira
Published: February 2025

Limestone, a common soil amendment in agriculture, is used to correct soil acidity by raising pH, increasing Ca and Mg levels, and neutralizing Al. This study evaluated the effectiveness of surface application of calcitic limestone doses to correct acidity at different soil depths. The research was conducted in a Eutroferric Red Latosol using a randomized block experimental design with eight repetitions in 30 m2 plots, covering a total area of 960 m2. Four doses of calcitic limestone (0, 3, 6, and 9 t ha-1) were applied without mechanical incorporation into the soil. Evaluations were performed at 12 and 24 months after the doses were applied, at depths of 0-0.05, 0.05-0.10, and 0.10-0.20 m, measuring chemical attributes such as pH, H+Al, Al, Ca, Mg, BS, and m. As the calcitic limestone doses increased, there were improvements in pH, approaching neutrality, an increase in Ca content, and an elevation in BS, reducing Al content and potential acidity. This demonstrated the effectiveness of calcitic limestone in increasing BS and reducing m. After 2 years, liming with calcitic limestone provided improvements to the root environment up to a depth of 0.20 m, with increased pH and base saturation, as well as reduced Al and H+Al levels. Furthermore, calcitic limestone doses did not influence soil Mg levels.
Strengthening Paradiplomacy for Migrant Worker Protection: The Collaboration Between Riau Islands Province and Johor State (2019–2024)
Authors: Anshari Muhammad Ilham , Mahfudin Irvan Aladip
Published: February 2025

This study examines the paradiplomatic collaboration between the Riau Islands Provincial Government and the State of Johor in safeguarding Indonesian migrant workers (PMI) from 2019 to 2024. As a critical gateway for Indonesian labor migration to Malaysia, the Riau Islands face ongoing challenges in providing adequate protection for migrant workers, particularly within border regions. Using David Criekmans' framework on paradiplomacy, this research explored the dynamics, challenges, and limitations of the cooperative efforts between these sub-national governments. The study employed a descriptive qualitative methodology, drawing on document analysis and case studies to provide a comprehensive understanding of the actions undertaken. The findings highlight significant barriers to effective collaboration, including (1) insufficient political representation and coordination between the two sub-national governments; (2) central government dominance in decision-making, limiting local authority; (3) bilateral agreements that inadequately address migrant worker protection; and (4) constrained sub-national diplomatic efforts under central government oversight. These factors impeded the ability of the Riau Islands Province and Johor State to act as pivotal actors in resolving migrant worker-related challenges. This research contributed to the discourse on paradiplomacy by identifying the structural and operational shortcomings in cross-border collaboration for migrant worker protection, offering insights for strengthening sub-national cooperation in similar contexts.
Constructing Peace Identity: Hiroshima's Diplomatic Role in Nuclear Disarmament
Authors: Mubin Sayyidul , Ramadhan Fahrizal Basanto
Published: February 2025

This article focused on how Hiroshima created and managed its peace identity and transformed itself into a strong player within global nuclear disarmament diplomacy. Based on constructivist theory, which states that identity and interests are developed through social interaction and interpretation, the study examined how Hiroshima evolved from a city that suffered as a result of the atomic explosion to become a strong advocate for nuclear disarmament. The qualitative case study approach was supported by process tracing and document analysis, and findings showed three important areas of the diplomatic evolution of Hiroshima: firstly, the capacity to change from being a war victim to a victor advocating for peace-building strategies and memorial strategies; secondly, the creation of a wide range of diplomatic relations through Mayors for Peace and other international associations; and third, the promotion of the nuclear disarmament norm through advocacy, education, documentation of survivors’ stories, and the encouragement of the Treaty on the Prohibition of Nuclear Weapons. The results showed the potential for cities to establish and use specific diplomatic identities that help in the modification of governance, more so in cases where state-to-state diplomacy is ineffective. This work adds to the body of knowledge on how non-state actors influence the structure and constructivism of norms and identity in nuclear politics.
Ambiente alfabetizador del hogar. Análisis de perfiles según nivel socio-económico
Authors: Muñoz Carla , Frez-Aróstica Nicole , Valenzuela Jorge , Centeno Alex
Published: February 2025

El confinamiento producto de la crisis sanitaria de Covid-19 limitó las oportunidades de interacción social y acceso al aprendizaje formal escolar, lo que afectó de manera particular a los niños de nivel socioeconómico bajo. En este contexto, la familia constituyó el único agente de socialización e interacción directa con la cultura escrita. Por su relevancia en el desarrollo de la literacidad, este estudio tuvo por objetivo identificar perfiles de ambiente alfabetizador del hogar. Junto con lo anterior, se evaluó la relación entre estos perfiles y el nivel socioeconómico de la familia. Se aplicó el cuestionario de ambiente alfabetizador del hogar (AAH) a 326 familias de estudiantes que cursaban kínder en establecimientos educativos urbanos y rurales de nivel socioeconómico alto, medio y bajo. A partir de un análisis de conglomerados, los resultados muestran la existencia de dos grupos de familias caracterizados por altos y bajos niveles de prácticas de literacidad, creencias sobre literacidad y valor por la lectura, respectivamente. Contra lo esperado, los perfiles lectores en esta etapa del desarrollo no muestran una asociación con el nivel socioeconómico de las familias. Finalmente, se discuten las implicancias de estos resultados para la intervención educativa en tiempos de postpandemia.
Grandparents of the deceased and their descendants as statutory heirs – de lege lata and de lege ferenda reflections in the light of the draft amendment of the Civil Code
Authors: Paluch Anna
Published: February 2025

Celem artykułu jest odpowiedź na pytanie, czy art. 934 k.c. w obecnym brzmieniu prawidłowo i adekwatnie do współczesnych realiów społecznych zakreśla granice podmiotowe dziedziczenia ustawowego, i czy istnieją racje przemawiające za wprowadzeniem ograniczenia w zakresie stopnia pokrewieństwa między wstępnymi spadkodawcy i ich zstępnymi a spadkodawcą. Impulsem do podjęcia tych rozważań stał się rządowy projekt ustawy o zmianie ustawy – Kodeks cywilny oraz niektórych innych ustaw (druk sejmowy nr 2977), który został poddany ocenie w zakresie proponowanej w nim zmiany art. 934 k.c. Analiza pozwala dojść do wniosku, że słusznie wprowadzono w k.c. dziedziczenie ustawowe dziadków, natomiast obecne brzmienie art. 934 § 2 k.c. zbyt szeroko zakreśla krąg osób powołanych do dziedziczenia ustawowego, nie przewidując żadnego ograniczenia zstępnych dziadków w zakresie stopnia pokrewieństwa ze spadkodawcą. Takie rozwiązanie powoduje, że do dziedziczenia mogą zostać powołane osoby zupełnie obce spadkodawcy, a jedynie formalnie z nim spokrewnione, co nie jest pożądanym stanem rzeczy. Z tego względu projektowaną zmianę k.c., przewidującą dziedziczenie zstępnych dziadków do czwartego stopnia pokrewieństwa ze spadkodawcą, należy uznać za zasadną.
Agnieszka Choduń, 1971–2023
Authors: Gmerek Karolina
Published: February 2025

Profesor Agnieszka Choduń, wybitna teoretyczka prawa, znakomita nauczycielka akademicka oraz wykładowczyni, była absolwentką Wydziału Prawa i Administracji Uniwersytetu Szczecińskiego. Również z tym Uniwersytetem związała swoją drogę zawodową. Na Wydziale Prawa i Administracji pracowała jako asystent, adiunkt oraz profesor uczelni. Odeszła 21 sierpnia 2023 roku po długiej chorobie. Pozostawiła po sobie ogromny dorobek naukowy oraz uczniów, którzy zawdzięczają Jej nie tylko wiedzę, lecz także określoną postawę metodologiczną oraz etyczną w nauce.
Multiparametric presentation of the crack-tip fields in the vicinity of longitudinal shear crack
Authors: Bakhareva Yu. N.
Published: February 2025

The article is devoted to the study of the stress field at the tip of a longitudinal shear crack based on a multiparametric asymptotic representation of the stress field at the crack tip in a linearly elastic isotropic material. The performed asymptotic analysis of the fields at the tip of a longitudinal shear crack is a natural continuation of the studies conducted for multiparametric stress fields at the tips of cracks of normal separation and transverse shear, as well as mixed loading. Despite the simplicity of analyzing the contribution of higher approximations to the general representation of the stress field at the tip of a type III crack, multicoefficient representations of the stress field near this type of crack have not been previously studied. It is shown that higher-order approximations must necessarily be taken into account for 1) accurate representation of the stress field and 2) expansion of the range of asymptotic expansions. It has been found that the greater the distance from the crack tip, the more components of the series must be stored near the crack tip.
Removal of Copper (II) Ions from Aqueous Solution Using Manganese Oxide Nanopowder
Authors: Kulkarni Rajeswari M. , Sharath R. , Nagabhushan B. M.
Published: February 2025

Copper is a widely used metal for various applications such as electroplating, building applications, industrial machinery and the electronics industry. There is increasing concern about the environmental issues related to copper heavy metal in the wastewater produced by the copper mining industry. The present work focuses on treating copper (II) ions using manganese oxide (MnO2) nanopowder. The MnO2 nano-material was synthesised using the combustion process and characterised using X-Ray Diffraction (XRD) and Scanning Electron Microscope (SEM). It was found that it mainly contained crystalline α-MnO2. The effect of variables including the initial pH, contact time, initial concentration and adsorbent dose that influence the adsorption process was studied. Results showed that under best conditions, i.e., 500 mg/L initial concentration, 15 g/L absorbent dosage, 3 hours contact time, initial pH of 5.0 and a stirring speed of 120rpm, copper (II) was reduced to non-detectable levels. The high concentration of copper was reduced effectively by MnO2 nanoparticles. Isotherm and kinetics of the adsorption process were studied. Kinetic data followed Ho’s pseudo-second-order kinetics. This study indicated that MnO2 nano-material has a tremendous potential to remove copper (II) ions.
Enhanced Biodiesel Production from Oedogonium sp. and Saccharomyces cerevisiae Using Modified Bligh and Dyer Lipid Extraction Method
Authors: Udagani Subramanya Mohan , Bhaskar Suraj , Kiran R. R. Siva , Ghosh Rajesh , Adithya P. , Bharath J. N. , Chethan C. V. , Hamidi Roya , . Archna
Published: February 2025

The production of alternate renewable, clean fuel sources like biodiesel is being explored in this present study using green algae (Oedogonium sp.) and yeast (Saccharomyces cerevisiae) isolated from mining sites. The study aims to use the newly modified Bligh and Dyer method for extracting lipids from Oedogonium sp. and S. cerevisiae to produce biodiesel. The modified method increased the lipid content to 3.951% for Oedogonium sp and 2.621% for S. cerevisiae compared to Soxhlet apparatus and conventional methods. The biodiesel produced from the lipids is analyzed as per IS1448 standards and is compatible with ASTMD 6751 biodiesel standards. The modified Bligh and Dyer lipid extraction is one of the most efficient lipid extraction methodologies that will contribute to the research in biodiesel production.
Experimental Investigation of C. I Engine with Fish oil Viodiesel and n-Butonal Blends
Authors: Jagadish Katta , Kotebavi Vinod
Published: February 2025

The majority of the energy we consume for daily needs often originates from fossil fuels. This source is nonrenewable and pollutes the atmospheric air. Many researchers are working on biodiesel to replace this fuel for better performance of the engine with reduced emissions. The primary goal of this research is to reduce pollution and to study performance of diesel engines, with fish oil biodiesel. Various properties like calorific value, density, kinematic viscosity, flash and fire point for fish oil and its blends with diesel are determined as per the standard test procedures. Experiments are conducted to study the performance, emission and combustion characteristics of a Computerized 4-stroke, single-cylinder vertical water-cooled diesel engine using fish oil biodiesel blends. We also used n-butanol as an additive for better performance. Different parameters studied here are performance characteristics like specific fuel consumption, brake thermal efficiency, indicated thermal efficiency, mechanical efficiency, volumetric efficiency, combustion parameters like Cylinder pressure and net heat release, and emission parameters like NOX, CO, CO2, HC, O2, smoke density. Experiments are conducted at different load and results are compared with pure diesel. During the study, we found that 20% biodiesel blend is optimal when compared with all other blends and pure diesel.
Comparative Study of Wear Characteristics of Graphite, Silicon Carbide and Mixture of Silicon Carbide – Graphite Filled E-Glass Fiber Reinforced Vinyl Ester Composites
Authors: Kulkarni Sudheer D. , Gaitonde Vinayak N. , Chethan S. , Nathaneil Dara
Published: February 2025

Composite materials blend unique characteristics such as stiffness, toughness and high thermal strength. The present study evaluates the tribological properties, namely abrasion and erosion wear of E-glass fabric reinforced vinyl ester composites with and without the addition of particulate fillers. The composite plates were fabricated using the hand lay-up technique. Graphite, Silicon Carbide (SiC) and a mixture of SiC-Graphite were used as particulate reinforcement and accordingly, three sets of composites were fabricated with each set containing composite plates of 3%, 6% and 9% filler content by weight. Dry Abrasion test or three body wear tests and Erosion Wear Testing were conducted to evaluate the tribological properties of the composites and the test was performed under ASTM G-65 (ASTM G65, 1994). Silica sand and quartz sand were used as abrasive media. It was concluded that the addition of particulate filler in vinyl ester composites significantly improved their wear resistance and Silicon Carbide filled composites have better resistance to wear than the other combinations which were tested.
Noise Level Measurement and Analysis in Safety Management in A Metal Work Fabrication Industry Using Six Sigma Methodology
Authors: Shivakumar M. R. , Shilpa M. , Hamritha S. , Gowda S. Madhosh
Published: February 2025

This study was conducted in metal work fabrication industry. During the metal work fabrication, machineries and equipment are produces the noise. The excessive noise in the workplace causes the hearing disorder in workers, also annoys and disrupts the activities. Present study was to assess the magnitude of noise and remedial actions in controlling the industrial noise expose at an electrical equipment manufacturing plant. The noise level of 105dB was observed in coil winding machine. This noise level is highly unsafe as per the safety standards for noise level. This paper discusses about the Six Sigma methodology in reducing the noise level of the plant. The noise levels are smoothened by calculating Risk Priority Numbers (RPN) and implementing engineering control techniques in the machinery area. With the implementation of the Six Sigma Methodology, the noise level in the plant was reduced to less than 75db, which is an acceptable safe noise level as per the standard noise level of a manufacturing plant.
Structural and Optical Properties of Red Emitting Y2O3: Eu Nanophosphor
Authors: Nath Soorya G. , Anila E. I.
Published: February 2025

Europium-doped yttrium oxide is an efficient red phosphor which has commercial significance. In this work Y2O3: Eu nanophosphor was prepared using wet chemical precipitation method followed by annealing. The results obtained from the sample’s X-ray diffraction experiments indicate that the material exhibits a cubic structure, showcasing an average crystallite size of 19nm. The value of micro strain as well as crystallite size was estimated using a Williamson-Hall plot and the positive value of micro strain thus obtained represents lattice elongation. Also, the corrected value of the lattice parameter established using the Nelson-Riley plot is 10.64Å. Ultraviolet (UV)-vis. absorption spectroscopy was employed for bandgap measurements, resulting in a direct bandgap of 6 eV. There was an increase in bandgap energy with respect to bulk (~5.8eV), which may be due to the size. On exciting the sample at 254nm, intense red emissions with a major peak at 611nm were observed which shows the applicability of this material in luminescence applications.
Sustainable Management of Coffee Bean Processing Waste for Bioethanol Production
Authors: Tanya Thomson , Divyashri G. , Sejal S. , Vaishnavi V.
Published: February 2025

Coffee being one of the most consumed beverages in the world, is also an extremely valuable agricultural commodity. However, its processing generates millions of tons of solid waste annually. These wastes are usually dumped in landfills, added to animal feed, or incinerated, Due to the high caffeine and tannin content, it tends to affect soil quality and can be toxic and carcinogenic to the animals that consume it. Coffee processing wastes have been used in biofuel production for a few years now. The ever-increasing demand for energy, sharp inflations in fuel prices and the non-renewability of conventional energy sources have heightened the necessity for alternative energy sources. Biofuels, due to their renewable nature and clean emissions on combustion are rapidly gaining popularity as an alternative energy source. Conventional production of bioethanol includes pretreatment, saccharification and fermentation of sugar-containing feedstocks. Coffee bean processing waste being rich in fermentable sugars, can be channelised for bioethanol production. Therefore, the production of bioethanol from an agricultural waste substrate will not only help in the production of a valuable, eco-friendly biofuel but also will help in the effective utilisation of coffee processing waste, reducing environmental pollution. Sustainable management of coffee bean processing waste for bioethanol production indirectly benefits the mining industry by reducing environmental impact, fostering community development, and influencing market trends. Bioethanol contributes to local energy independence, potentially decreasing reliance on non-renewable resources. Innovations in waste management and sustainability practices create a ripple effect, positively impacting various industries, including mining. This review aims to discuss the prospects of sustainably managing coffee bean processing waste for the production of bioethanol and its promising future.
Assessing the Safety Level of Hospitalized Patients: Analyzing Patient Activities
Authors: Mousavipour Sayedeh Somayyeh , Jabbari Mousa , Saremi Mahnaz , Ebadi Abbas , Bahadori Ehsan Shariat , Khorasani-Zavareh Davoud
Published: February 2025

One of the important issues in health care systems that affect safety-related behaviors and reduce medical errors is to improve the safety level of the hospitalized patients. Patient safety, especially non-therapeutic safety, is crucial in providing the hospital services. Any shortcoming in this regard can be life threatening. The aim of this study was to evaluate the level of safety of the hospitalized patients by analyzing the patient's activities. In the present study, all activities of the hospitalized patients were considered as one job, and the occupational safety analysis technique was used. For this purpose, all the activities of hospitalized patients from the time of entering the hospital to the time of leaving the hospital were identified and by forming a team of specialists in the field of patient care, a list of all possible risks in different stages of patient activities was determined. To assess the risk, the risk matrix model, which is one of the risk assessment models, was used. The risk assessment process was used considering the probability and severity of the risks, as well as the effects of risk. The severity of risk was divided into 4 categories and the probability of risk into 5 levels. In the matrix, the number 1 indicates the lowest risk, and the number 20 indicates the highest risk. Experts' opinions were used to rank the risk, and finally the risk level of the identified hazards was determined before and after the control measures. The results showed that the risks in 6 stages for the patient include the patient entering the hospital, patient admission in the ward, patient entry into the room, hospitalization in the room, patient transfer for medical and diagnostic purposes and patient discharge from the hospital. There are a total of 79 potential hazards. All the risks assigned to the patient had a score above 12 at the time of the risk assessment; however, providing control-preventive measures reduced the level of risk at all stages significantly, according to the re-evaluating of the potential risks. The results showed that by managing the four types of risks "Struck against", "Fall to below", "Fall same level", "Struck by", which are among the most important risks that threaten the hospitalized patients, more than 50% of potential risks is reduced. The findings showed that the recurrence and severity of risk and, consequently, the level of risk identified in different stages of hospitalization are different. Therefore, improving the level of management and prioritization and providing the controlling and the suggested solutions, which are the main management tasks in a hospital, can improve the safety of the hospitalized patients. It is recommended that hospital managers consider the Occupational Safety Analysis Technique, known also as the Patient Safety Analysis Technique, to identify potential risks of the hospitalized patients.
The Role of Platelet-Rich Plasma (PRP) in Enhancing IVF Success in Women With Ovarian Insufficiency: A Cohort Study
Authors: Alipour Zahra Mohammad , Ahmadi Farahnazsadat , Mohajernoei Sina , Gharaei Roghaye , Hojjati Nazanin , Shirali Elham , Asbagh Firouzeh Akbari
Published: February 2025

- Ovarian insufficiency is a significant cause of infertility in women, with limited effective treatment options. Platelet-Rich Plasma (PRP), rich in concentrated growth factors, has shown regenerative potential in various medical fields. However, its efficacy as an adjunct in infertility treatment, particularly in women with ovarian insufficiency, remains unclear. This study investigates whether PRP administration improves the success of IVF cycles in this specific population. This cohort study followed women with ovarian insufficiency undergoing IVF at a fertility center. Participants were divided into two groups: the intervention group, which received PRP alongside the standard IVF protocol, and the control group, which received only the standard protocol. Data collected included patient demographics, hormonal levels, number and quality of retrieved oocytes, fertilization rates, embryo quality, and pregnancy outcomes. The primary outcome was IVF success, defined by clinical pregnancy rates. Secondary outcomes included hormonal changes, oocyte quality, and embryo development. Statistical analysis utilized descriptive statistics, chi-square tests, and t-tests to compare outcomes between groups. PRP administration led to significant reductions in FSH levels (P<0.001) and marked increases in AMH levels and antral follicle count (AFC) (P=0.001 and P<0.001, respectively). The number of oocytes, mature MII oocytes, and Grade A embryos also improved significantly (P ranging from 0.004 to 0.017). Although the increase in Grade B embryos was not statistically significant, it was higher post-PRP. Chemical pregnancies occurred in 25% of participants, with 20.83% resulting in clinical pregnancies, including 2.1% spontaneous pregnancies. PRP significantly enhanced ovarian reserve markers (FSH, AMH, AFC), oocyte quality, and embryo development, translating into improved fertility outcomes. The findings suggest that with longer follow-up and larger sample sizes, PRP could be validated as a promising adjunctive therapy for women with ovarian insufficiency undergoing IVF. These results align with prior research and highlight PRP’s potential to advance reproductive outcomes in this challenging patient population.
Evaluation of Anti-Cancer, Pro-Apoptotic, and Anti-Metastatic Effects of Synthetic Analogue Compound 2-Imino-7-Methoxy-4-(4-fluorophenyl)-2H-1,3-Thiazino [3,2-a] Benzimidazole on Pancreatic PaCa-2 and Melanoma A375 Cancer Cells
Authors: Ndou Mpho , Fotsing Marthe C. D. , Kengne Michael H. K. , Mmutlane Edwin M. , Ndinteh Derek T. , Ndinteh Derek T. , B.C. Simelane Mthokozisi , Motadi Lesetja , Choene Mpho S.
Published: February 2025

Synthetic compounds are widely used in cancer drug discovery. Chemotherapies aim to inhibit proliferation and induce apoptosis however, they have limitations. This study aims to explore in vitro anti-proliferative, pro-apoptotic, and anti-metastatic effects of 2-imino-7-methoxy-4-(4-fluorophenyl)-2h-1,3-thiazine [3,2-a] benzimidazole against pancreatic and melanoma cancer cell lines. Cell viability assays were conducted using Alamar blue assay. Caspase 3/7 activation was evaluated using caspase-Glo® 3/7 substrate reagent. Gene expression was analyzed using conventional polymerase chain reaction (PCR). Cell migration was assessed using wound healing. Alamar blue assay showed that the molecule studied exhibited antiproliferative activity on both the PaCa-2 and A375 cell lines, however, with higher cytotoxicity on PaCa-2 which suggests that it is cell-line dependent. Caspase 3/7 activity was upregulated in PaCa-2 and downregulated in A375, suggesting caspase-dependent and caspase-independent cell death, respectively. p53 and Bax were upregulated on both cell lines which suggests that the compound might have induced apoptosis and autophagy. Wound healing showed a decreased cell migration on both cell lines an important stage of metastasis. The study suggests that the study molecule can be a promising chemotherapeutic agent in the development of new anticancer drugs.
Expanding Export Markets for Vietnamese Dragon Fruit
Authors: Mai Thi Dung , Dinh Huy Hai Duong , Ha Ngoc Son , Nguyen Chieu Khanh
Published: February 2025

Dragon fruit is one of the main fruits of Vietnam, bringing high economic value and contributing significantly to agricultural export turnover. However, Vietnam's dragon fruit exports are facing many challenges. The decline in demand from China due to the country's increased domestic production, combined with technical barriers and strict phytosanitary requirements from major markets, has reduced export turnover. The lack of solidity in production linkages and limitations in post-harvest preservation technology are also weaknesses that need to be overcome. In this context, the study proposes many solutions to expand export markets. Solutions focus on improving product quality, complying with international standards, investing in preservation and deep processing technology, promoting product marketing to new markets, as well as taking advantage of free trade agreements to reduce costs and improve export efficiency.
Modos outros de pesquisar em educação: tecendo narrativas com os fios da decolonialidade
Authors: Paim Elison Antonio , Campos Caroline Machado
Published: February 2025

O Grupo Patrimônio, Memória e Educação (PAMEDUC), vinculado à Universidade Federal de Santa Catarina (UFSC), dedica-se à promoção de uma metodologia decolonial que valoriza as narrativas e saberes de comunidades historicamente marginalizadas, especialmente indígenas e afrodescendentes. O grupo, fundado em 2014, tem como principal objetivo construir experiências coletivas de investigação, articuladas com práticas de ensino e extensão, fomentando uma abordagem crítica sobre patrimônios e memórias. Este artigo apresenta um levantamento das pesquisas realizadas no grupo, com ênfase em trabalhos que adotam uma perspectiva decolonial, inspirada em autores como Linda Tuhiwai Smith, Walter Benjamin e Aníbal Quijano. Essas pesquisas procuram romper com as estruturas de conhecimento ocidentais, destacando a importância da autonomia e autodeterminação dos grupos pesquisados e reconhecendo suas histórias como saberes legítimos. A metodologia decolonial adotada pelo grupo PAMEDUC enfatiza o diálogo horizontal, respeitando as particularidades de cada grupo e/ou sujeito e rejeitando a hierarquização do saber ocidental como único válido. O artigo também ressalta a importância de uma metodologia em constante construção, que se adapta às necessidades e contextos dos grupos estudados, e como as pesquisas desenvolvidas têm contribuído para a inclusão e transformação social, especialmente por meio da valorização de vozes marginalizadas e subalternizadas.