bluuebunny/crossref_metadata_2025 huggingface dataset:
Técnico x político na elaboração do projeto e legislação da estrutura organizacional de uma Prefeitura Municipal
Authors: Rodrigues Claudio Vilela , Alves Jaqueline Aparecida , Rodrigues Acácio Ponciano
Published: April 2023

Esta pesquisa se propôs a melhorar a estrutura organizacional da Prefeitura Municipal do muncípio de Guapé/MG, tornando-a mais eficiente e eficaz, para agregar valor a seus munícipes. O método de pesquisa foi a pesquisa-ação. A partir da eleição do candidato a Prefeito Municipal em 2020 iniciou-se, ainda na transição, junto com o Prefeito eleito e sua equipe, o diagnóstico da situação da Prefeitura, quando se observou a necessidade de melhorar a sua estrutura organizacional. Logo no início desta pesquisa, foi proposto uma nova estrutura organizacional que foi aprovado por unanimidade pela Câmara Municipal em dezembro de 2020 e atualmente está vigindo. Mas as análises e pesquisas sobre o tema continuaram. Por fim, depois de reuniões, debates e análises, foram criados seis redesenhos da estrutura organizacional, até se encontrar uma versão mais técnica que foi apresentada ao prefeito municipal. A partir desta versão, o prefeito realizou algumas alterações visando atender o lado político, estabelecendo a versão definitiva. A pesquisa mostra que o conhecimento técnico e científico pode aprimorar decisões políticas e, por outro lado, que o conhecimento técnico-científico não pode desprezar os fatores políticos.
Entraves logísticos no polo industrial de Manaus: um estudo de caso em uma empresa automobilística
Authors: Picanço Anne Gabriele da Silva , De Lima Orlem Pinheiro , Roberto José Carlos Alves , De Araújo Paulo César Diniz , Teixeira Elton Pereira , Da Cunha Edileuza Lobato , Romão Líbia Pérsia
Published: April 2023

O Polo Industrial de Manaus (PIM) é um importante centro de produção para diversas indústrias, incluindo a automobilística. No entanto, a logística de transporte na região norte do Brasil apresenta desafios que afetam o desempenho das empresas ali instaladas. Este artigo tem como objetivo analisar os entraves logísticos enfrentados por uma empresa automobilística no PIM, identificando suas causas e impactos nas operações da empresa. Para isso, foi realizado um estudo qualitativo que incluiu a análise de dados de desempenho logístico com documentos da empresa, artigos e dados da SUFRAMA. Os resultados indicam que a falta de infraestrutura adequada, a complexidade do transporte na região e a falta de planejamento são alguns dos principais obstáculos enfrentados pela empresa localizada no PIM.
Auditoria interna no setor público: uma análise bibliométrica das produções à nível de pós-graduação stricto sensu
Authors: Ximenes Felix , Rodrigues Junior Manuel Salgueiro , Dos Santos Hávila Cristina Souza
Published: April 2023

Esta pesquisa visou analisar as características das produções científicas de 2010 a 2020, no âmbito da pós-graduação stricto sensu, que tiveram como foco a auditoria interna no setor público. O tema foi escolhido por se tratar de uma área que pode contribuir com as instituições públicas no cumprimento de princípios considerados essenciais, como a legalidade, legitimidade, eficácia e economicidade. No tocante à metodologia, esta pesquisa se classifica como descritiva, bibliométrica e quali-quantitativa. Os dados referentes às teses e dissertações foram coletados em fevereiro de 2022 no Banco de Dados do Catálogo de Teses e Dissertações da CAPES e analisados por meio dos programas Excel e Atlas TI. Dentre os indicadores analisados, destacam-se: ano, nível e modalidade, gênero (autor e orientador), local, instituição de vínculo, palavras-chave, temática abordada, abordagem metodológica etc. Os resultados evidenciaram o predomínio de produções nos Estados de São Paulo, Paraná e Rio de Janeiro; oriundas de mestrados profissionais; e aplicadas principalmente no contexto de Instituições Federais de Ensino e Instituições Financeiras. Além disso, nem todos os trabalhos utilizaram teorias, enfatizando preponderantemente aspectos práticos mediante a adoção da metodologia de estudo de caso, observando-se, portanto, uma maior necessidade de explorar teorias e metodologias nos futuros estudos acerca do tema. Por fim, observou-se uma intensificação no número de pesquisas a partir de 2017, abrindo a possibilidade de um crescimento nas produções. Nesse sentido, algumas temáticas pouco utilizadas podem ser objetos de futuras pesquisas, como é o caso da gestão de riscos e a gestão do conhecimento.
Medición del potencial de innovación en las organizaciones: propuesta metodológica para el contexto ecuatoriano
Authors: Arévalo Verónica Paulina Morales , López Jorge Andrés Robalino , Rodríguez Carlos Alberto Almeida
Published: April 2023

Esta investigación presenta una propuesta metodológica para medir el potencial de innovación en las organizaciones en base a tres constructos: capacidades, resultados e impactos de la innovación. Considerando que cuantificar fenómenos sociales requiere de técnicas estadísticas, pero también de análisis del contexto de los constructos que se desean medir, se ha construido un modelo macro de medición del potencial de innovación en base a una herramienta desarrollada para la realidad ecuatoriana. Los constructos incluidos en el modelo se han definido a partir de identificar los elementos que los constituyen, considerando para ello un enfoque multidisciplinar. Además, se ha validado el modelo macro de medición a través de análisis de factores y validación de los constructos. Los resultados muestran que la aplicación de esta metodología además de permitir representar la medición más cercana al contexto, ofrece la posibilidad de evaluación continua de las herramientas desarrolladas para recolección de datos en función de las características contextuales de los constructos.
Percepção dos empregados de empresas do comércio de presidente Getúlio/SC sobre liderança, motivação, satisfação e desempenho
Authors: Dallabona Lara Fabiana , Silveira Bárbara Maiara , De Souza Karine Giovana Cabral , Da Silva Josefa Rafaela Gomes
Published: April 2023

O estudo objetivou analisar a percepção dos empregados de empresas do comércio de Presidente Getúlio/SC sobre liderança, motivação, satisfação e desempenho. A amostra envolveu 112 empregados. Observou-se que tanto a liderança transacional como a transformacional se destacaram nas empresas. Os líderes transacionais são mais focados nos resultados, já os transformacionais se preocupam mais com a boa relação no ambiente organizacional. Os colaboradores se encontram satisfeitos com a relação que tem com seus superiores e a comunicação, porém não totalmente satisfeitos com os benefícios oferecidos, o que sugere aos empresários rever como os beneficiam. Quanto a motivação, apesar de terem suas necessidades supridas, não se sentem totalmente motivados, sentem que seus esforços não estão sendo reconhecidos, sugerindo que os gestores revejam a forma como recompensam os seus colaboradores. Observou-se que os laboristas estão satisfeitos com o seu desempenho, porém não se sentem reconhecidos por ele. A contribuição para as empresas é que revisem o tipo de líder predominante, bem como analisem possíveis fatores que possam motivar e satisfazer seus colaboradores, pois acredita-se que laboristas satisfeitos, possam melhorar o desempenho individual e, consequentemente, o desempenho e clima organizacional como um todo, fato que impacta também no retorno financeiro da organização.
Effect of Introduction of ‘Research Orientation Module’ in Ayurveda Undergraduates
Authors: Kuchewar Vaishali Vasantrao , Desai Priti Rajesh , Parwe Shweta Dadarao , Nisargandha Milind Abhimanyu
Published: April 2023

Introduction: Health research is necessary to address community health issues and needs even in enhancing health care. Anyone involved in medical science must understand research. A long-term approach for the promotion of health research is to target undergraduates. Aim: The present study is an effort to develop a time bound ‘Research orientation module’ with the aim to orient Ayurveda undergraduates about the basics of research and providing them hands-on training to develop primary proposal writing skills. Materials and Methods: It was an educational interventional study. It was conducted in two phases. In phase I and II, 160 and 56 students of II, III, and IV years Bachelor of Ayurvedic Medicine and Surgery (BAMS) respectively were enrolled. The students were exposed to research orientation module. The pretest, posttest, and feedback was taken and students were asked to prepare a research proposal on their topic of interest. The data is represented in mean and standard deviation. As the data followed normal distribution, parametric tests were used to analyse the data. Intergroup comparison was done with oneway ANOVA test. The paired t-test was used to check mean differences between groups. Result: In all batches, the mean posttest score (15.02±2.63) was significantly higher than pretest score (1.44±0.65) which showed improvement in knowledge. The mean proposal evaluation score was increased in all batches after students participated in workshops, but the IV year students score (12.83) was significantly increased in comparison with II year (9.92)and III year (10.53)students’ score. With the aid of the students’ feedback, the workshop evaluation was completed. Positive feedback and an interest in learning about the fundamentals of research were apparent. Conclusion: It can be concluded that ‘Research orientation module’ is effective in educating Ayurveda undergraduates about the basics of research and it is helpful in developing proposal writing skills in Ayurveda undergraduates.
Protective Antibody Titer against Hepatitis B in Healthcare Workers: A Cross-sectional Study from Tertiary Care Hospital of Kashmir
Authors: Nasir Reyaz , Farhana Anjum , Zahoor Danish , Fazili Tawhida , Wani Sanam Rasool
Published: April 2023

Introduction: Hepatitis B is not only the most transmissible blood borne viral infection, but also the only one that is preventable by vaccination. In developing countries, Hepatitis B vaccination coverage among Healthcare Workers (HCWs) is very low for various reasons. Aim: To evaluate Hepatitis B Virus (HBV) immunisation status and Hepatitis B surface antibody (anti-HBs) titer among HCWs in a tertiary care hospital in Kashmir. Materials and Methods: This cross-sectional study was conducted in the Department of Microbiology, Government Medical College, Srinagar, India from April 2019 to June 2019. Serum samples were collected from 196 HCWs and their vaccination history was collected. Those who had taken all three doses of hepatitis B were considered to be fully vaccinated those that had taken two doses as partially vaccinated. Triple serology was done for all which included testing for HBV, Hepatitis C Virus (HCV) and Human Immunodeficiency Virus (HIV) infection, one HCW turned out to be Hepatitis B Surface Antigen (HBsAg) positive and was dropped out of study. Those negative (195/196) were further tested for anti-HBs titer by enzyme immunoassay method. Parametric data are expressed as mean±Standard Deviation (SD) and categorical values as percentages. Results: Out of 195 HCWs selected for the study, 112 (57.4%) were males and 84 (43%) were females with mean age 38.4±6.9 years. Among them fully vaccinated were 46 (23.5%), partially vaccinated were 84 (43.07%) and not vaccinated were 65 (33.33%). Anti-HBs titers were protective in 54 (27.7%) which belonged 81.5% (44/54) to vaccinated category and 18.5% (10/54) to partially vaccinated category. Conclusion: Fully vaccinated HCWs (95.6%) had a protective antibody titer but unfortunately there are low vaccination rates among HCWs. There is a need for well-planned and clear policies for HBV screening and vaccination in HCWs, especially those who are at a greater risk of exposure to blood or other potentially infectious material.
ON THE TWO POSSIBLE TYPES OF THZ GENERATORS
Authors: TRALLE Igor , ZIĘBA Paweł
Published: April 2023

This paper is the review of our study published earlier in Acta Phys. Polon. A 121, 522 (2012) [7], Phys Lett A 378, 1364 (2014) [25], and [1]. It’s aim is to pay attention to the new possibilities related to producing the new types of THz generators. The suggested effects are the result of combining two effects: Gunn-effect in a material such as GaAs and undulator-like radiation, or 'pumping wave' acting on the electrons which is the result of undulator field, while the second is the backward effect of radiation which is produced by electrons moving within such a micro-undulator. It is very probable that the effects can be used to develop a new semiconductor-based room temperature source of the THz-radiation.
Specific Attenuation Estimation in Perturbed Radio Wave Propagation Using Artificial Neural Networks
Authors: Abraham Deme C. , Ikoojo Simon E.
Published: April 2023

Path loss modeling is a crucial consideration in radio engineering for wireless networks. Over the years, diverse techniques have been implemented in attempts to accurately predict path loss across a given terrain. In this study, path loss predictors created on the bases of artificial neural networks (ANN) were used to estimate path loss across a rural section of the Nigerian middle-belt grassland. The ANN structures considered were the Generalized Regression Neural network (GRNN) and the Radial Basis Function Neural Network (RBFNN), which exhibit a few differences and similarities. These ANN based predictors were trained, validated and tested for path loss prediction using path loss values computed from received power measured at 900MHz from six Base Transceiver Stations (BTSs) situated along the rural terrain. Findings show that the RBFNN predictor with a Root Mean Squared Error (RMSE) of 5.17dB and the GRNN with 4.9dB are slightly more accurate than the COST 231 Hata model with 6.64dB, while the Hata-Okumura with 25.78dB is simply not suitable for the terrain under investigation. Overall, the GRNN, which proffers a 26.21% improvement over the COST 231 Hata is recommended for the terrain in question.
Response of Bio Fertilizers and Phosphorus on Yield and Economics of Pearl millet (Pennisetum glaucum L.)
Authors: Angel Neela Saron , Singh Rajesh
Published: April 2023

A field experiment was conducted during kharif season of 2022, at crop research farm, Department of Agronomy at Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj (U.P.).India. The objective is to study the Response of Bio fertilizers and Phosphorus on yield and economics pearl millet. The treatments consisted of three levels of Bio fertilizers (20 g/kg Azotobacter, 20 g/kg Azospirillum, 20 g/kg Azotobacter + Azospirillum) and three levels of phosphorus (35, 40 and 45 kg/ha). The experiment was laid out in randomized block design with the ten treatments combinations replicated thrice. The soil in experimental field was sandy loam in texture, having alkaline reaction (pH 7.7) with very low organic carbon (0.44%), available higher N (171.48 kg/ha), P (27.0 kg/ha) and higher level of K (291.2 kg/ha).The results show significantly higher in  yield attributes viz. ear head length (25.25 cm), number of grains/ear head (2010.9),and yield viz. grain yield (3.25 t/ha) and Stover yield (6.27 t/ha). Maximum gross return (113750.00 INR/ha), net return (81010.00 INR/ha) and Benefit - cost ratio (2.47) was found in treatment (T9) with the application of 20 g/ kg Azotobacter + Azospirillum + 45 kg/ha Phosphorous.
Detection of Dengue Virus IgM Seropositivity and Malaria Co-infection among Individuals Resident on the Banks of River Niger in Anambra State, Nigeria
Authors: Michael Ntum Ifeanyichukwu , Chimuanya Umezurike Kingsley , Mariagoretti Chukwuma Oluchukwu , Onochie Manafa Patrick , Okechukwu Chukwuma George
Published: April 2023

Background: Dengue virus (DENV) is the cause of Dengue fever and it is a mosquito-borne, RNA virus. This study was aimed at determining Dengue virus Immunoglobulin M seropositivity and malaria co-infection among residents of the river Niger Banks.

Materials and Methods: A cross sectional study consisting of 96 subjects was performed. The subjects were recruited using the convenience sampling technique. Ethical approval was obtained and informed consent was sought from study participants. Questionnaire was administered to determine basic demographic information. Dengue Virus IgM was analysed using ELISA techniques. Malaria parasitaemia was detected using microscopy while packed cell volume (PCV) and haemoglobin (Hb) analysis were evaluated using manual methods. Statistical analysis was performed using the statistical package for social sciences (SPSS) version 21.

Results: The results showed that the prevalence of Dengue virus and malaria seropositivity among the study population was 17.7% and 36.5% respectively. The incidence of malaria was higher in those who were dengue virus negative (33.3%) than in those who tested positive to Dengue virus (3.1%). Dengue virus seropositive patients had significantly lower PCV (37.5±3.7) and Hb (12.9±1.14) compared to those who were negative to dengue virus, 38.8±3.5 and 13.3±1.17 respectively.

Conclusion: Our report has revealed that dengue virus is an emerging cause of febrile illness among the study population. This could be due to the nature of their environment which supports the breeding of different species of mosquito. This calls for urgent intervention and large scale research to confirm the circulating strains of the Dengue virus.
Monitoring Land Changes Using Remote Sensing Methods and Spatial Information System in the Area of Kahrizak Waste Disposal Center
Authors: Hatamzadeh Vahid , Vahidi Sara , Karimi Shokofeh , Afshinfar Afshin , Nouri Paniz
Published: April 2023

With more than 50 years of proximity to Tehran metropolis, the Kehrizak waste center has had destructive effects on the environment with the development of Tehran and the significant increase in waste production, including the change of land use units that are always affected by natural events, human actions, social issues and Economic. In this research, using Landsat 8 satellite images and remote sensing technique, the land use changes of Kahrizek waste center in thematic maps that are more accessible to users. Five vegetation indices NDVI, EVI, SAVI, LAI and VCI and six supervised classifications are investigated. Several methods were evaluated, parameters of overall accuracy and kappa coefficient. For this research, 4 classes of soil, water, building (urban area) and agricultural land were selected, and the results showed that the maximum likelihood classification method was the best method with an overall accuracy of 90.99% and a kappa coefficient of 0.85 and high similarity. Then, using the maximum likelihood classification method as the most accurate method, a user map was prepared from all images from 2011 to 2022. After calculating the area of ​​the floors, the results showed that the area of ​​the building floor increased by 71% and the area of ​​the agricultural land floor decreased by 80%.
Summary of Research on Digital Twin Workshop
Authors: Hu Dahai
Published: April 2023

Global overcapacity, resulting in increasingly fierce competition between enterprises, improve the production efficiency of the manufacturing industry is the key problem. Workshop is an important part of manufacturing industry. In order to improve the intelligent level of workshop and realize the digitization of production process, the current focus is how to use digital twin technology. Although the traditional virtual shop and digital shop design can realize intelligent shop, there are some problems such as non-real-time interaction and low data utilization. Digital twinning technology can effectively improve the transparency of workshop production process and optimize the production process. Establishing digital twin workshops and realizing the interconnection and further integration of workshop information and physical space will become the development trend of workshops and the only way to realize intelligent production and control of workshops. This study describes the definition of digital twin shop, system architecture and supporting technology, and summarizes the applications of digital twin shop in six aspects: shop equipment fault prediction and maintenance, shop production scheduling optimization, production process planning, intelligent control of shop equipment, shop energy consumption analysis and optimization, and real-time control of shop manufacturing process. This will provide reference for later digital twinning workshop researchers.
Physiochemistry and Microbiological Quality of Surface Water Body around Port Terminals in Southern Nigeria
Authors: Ogbonna D. N. , Anthony E. M. , Kpormon L. B.
Published: April 2023

Anthropogenic activities around the sea ports are capable of causing changes on the physicochemical and microbiological quality of water bodies along the port terminals. Such activities can cause an ecological imbalance in the water quality /ecosystem resulting in extinction of aquatic resources. The aim of this study therefore was to investigate the physicochemical and microbiological quality of surface water along the busy port terminals. Surface water samples were collected from Onne port terminal using sterile containers. The samples were collected during the wet and dry seasons between January to June 2021. The sterile bottles were filled with surface water samples and transported in an ice packed container to the Department of Microbiology Laboratory of the Rivers State University for analyses using standard analytical methods. Statistical analyses were carried out using ANOVA and All pairs tukey-kramer. Results of the physicochemical parameters showed that temperature, total dissolved solids, total suspended solids, nitrate and heavy metals were significantly higher during the dry season than the wet season at P ≥ 0.05 levels of significance. Seasonal variation with respect to microbial counts shows that Total Heterotrophic Bacteria, Total Heterotrophic Fungi, Total coliforms and Faecal coliforms had  a mean value of 3.9±1.77 x 106; 0.8 ±0.05 x 104 ; 7.4 ±1.3 x 104 and 3.6 ±0.17 x 104 colony forming unit per millilitre  respectively for wet season while the dry season had 1.6±0.77 x 106 , 0.5 ±0.01 x 104 , 4.6 ±0.17 x 104   and 2.7 ±1.03 x 104  cfu/ml respectively. In this study, the predominant bacterial isolates belonged to the genera of Vibrio, Pseudomonas, Klebsiella, Bacillus, Shigella, Staphylococcus, Salmonella, Proteus, Bacillus and Escherichia. coli. The results of physicochemical and microbiological characteristics including the heavy metals, were detected at concentrations on or below detection limits.. It is therefore suggested that relevant environmental regulatory bodies should maintain regular check to ensure that appropriate standards are maintained around seaports due to beehive of activities.
Demographics and Clinical Patterns of Retinopathy of Prematurity at the University of Teaching Hospitals, Women and Newborn Hospital
Authors: Banda Everisto , Moonga Phyllis M. , Mutoloki Elijah M.
Published: April 2023

Background: Retinopathy of prematurity (ROP) is a disorder of the developing retina of very low birth weight (VLBW) preterm infants. It is an important cause of childhood blindness and is listed as one of the causes of avoidable blindness in the vision 2020 - “The Right to Sight” Programme.

ROP is more prevalent in highly developed countries where neonatal services’ availability, access and outcomes are good. The survival rates of Very low Birth Weight (VLBW) infant and low gestational age (GA) at the University Teaching Hospital (UTH), Women and Newborn Hospital (WNH) Neonatal Intensive Care Unit has improved.

Aims: To estimate the prevalence of ROP at UTH, WNH, NICU.

Study Design: Hospital-based cross-sectional study.

Place and Duration: Neonatal Intensive Care Unit, Women and Newborn hospital at the University Teaching Hospital, in Lusaka, Zambia between November 2021 to April 2022.

Methodology: We included 110 (54.5% males and 45.5% females) infants either born at <32 weeks GA or weighed <1500g. Dilated fundus examinations were done at 4 to 6 weeks chronological age or 31 to 33 weeks GA. Medical records were reviewed to identify associated factors.

Results: Mean gestational age at birth was 30.6±2 weeks ranging from 27 to 34 weeks, mean birth weight was 1422.7±334.3 g ranging from 900g to 2200 g, mean Apgar score at 1 minute was 7±1.3, at 5 minutes the mean was 7.8±0.9, and at 10 minutes the mean was 8.4±0.7. Twenty-six (23.6%) were products of multiple gestations. Hyaline membrane disease was observed in 14 (12.7%), neonatal sepsis in 48 (43.6%), necrotising enterocolitis in 6 (5.5%), patent ductus arteriosus in one (0.9%), and hyperglycaemia in 56 (50.9%) cases.

Conclusion: Our study found no participant with retinopathy of prematurity at UTH NICU.  Further, the study could not make associations between suggested risk factors to the development of ROP. However, being a novel study on this topic in the country, it highlights the importance of setting up screening protocols and their attendant equipment in Special Care Baby Units at UTH and improving neonatal care services.
EVALUASI MANAJEMEN MEDIA SOSIAL INSTAGRAM MENGGUNAKAN FRAMEWORK DRAGONS: STUDI KASUS PADA PROGRAM STUDI PASCASARJANA DI SURABAYA
Authors: Ruse Arie Viriawan , Jaolis Ferry , Wijaya Serli
Published: April 2023

Dalam lima tahun terakhir, tidak sedikit universitas yang mulai memanfaatkan media sosial untuk membangun engagement dengan pemangku kepentingan utamanya seperti mahasiswa dan calon mahasiswa. Dalam manajemen media sosial sebagai sarana pemasaran, perlu adanya rancangan strategi konten yang efektif untuk mendorong performa pemasaran sebuah universitas lewat engagement. Penelitian ini bertujuan untuk menganalisis efektivitas manajemen media sosial dari sebuah akun Instagram program pascasarjana di salah satu universitas di Surabaya menggunakan framework DRAGONS. Framework ini terdiri dari tujuh elemen utama yaitu Dialogue, Relatability, Authenticity, Give, Opinion, Niche dan Sales Hasil penelitian menunjukkan, bahwa sejauh ini menajemen media sosial dari objek analisis masih menitikberatkan pada elemen Dialogue dan Relatability dari keseluruhan elemen framework. Rekomendasi praktikal terkait perancangan dan penerapan konten Instagram dari objek analisis berdasarkan elemen DRAGONS lainnya yang belum dielaborasi juga diberikan untuk meningkatkan engagement para pengikut akun Instagram dari program studi.
PENGARUH DINING EXPERIENCE TERHADAP KEPUASAN KONSUMEN DI RUSTIC MARKET BY THE LAKE RESTORAN GRAHA NATURA SURABAYA
Authors: Meillycent Jesslyn , Oslan Steven Jonathan , Aprilia Adriana
Published: April 2023

Penelitian ini bertujuan untuk menganalisa pengaruh kualitas makanan dan minuman, kualitas layanan, dan lingkungan fisik yang merupakan dimensi dari dining experience terhadap kepuasan konsumen di Rustic Market by The Lake Graha Natura Surabaya. Jenis penelitian ini menggunakan metode kuantitatif kausal dengan jumlah sampel yang digunakan adalah sebanyak 106 sampel. Metode analisa data pada penelitian ini menggunakan regresi linear berganda. Hasil penelitian menunjukkan bahwa kualitas layanan dan lingkungan fisik memiliki pengaruh positif dan signifikan terhadap kepuasan konsumen di Rustic Market by The Lake Graha Natura Surabaya, sedangkan kualitas makanan dan minuman memiliki pengaruh positif namun tidak signifikan terhadap kepuasan konsumen di Rustic Market by The Lake Graha Natura Surabaya.
Measurement of Regional Resilience and Influencing Factors in Spread Stage of COVID-19 Using Unemployment Benefit Payment
Authors: Dong Ah Hyeon , Kang Jung Eun
Published: April 2023

Since the first confirmed case, COVID-19 has spread rapidly in Korea. Furthermore, as social distancing has been implemented per quarantine guidelines, the virus has had various social and economic effects. Previous studies assess the resilience of the local community to measure the degree of economic damage caused by COVID-19 and to evaluate the ability of the community to return to a pre-pandemic state. To determine spatial characteristics and factors influencing resilience, the current study investigates the effects of COVID-19 on unemployment within the four-stage spread period of the outbreak. Differences were observed in regional resilience at each stage and location and the characteristics of resilience also differed temporally. Based on the results, the spatial change trend of resilience and factors affecting resilience from short- and long-term perspectives after the impact and suggest implications for future policies were derived.
Comparative Analysis of Debris Flow Numerical Simulation Based on the Difference between the Resolution of Topographic Information and Grid Size
Authors: Kim Namgyun , Jun Byonghee
Published: April 2023

In this study, a comparative analysis was conducted for the debris flow that occurred in Gokseong-gun, Jeollanam-do, in August 2020, using the difference between the resolution of topographic information and grid size. High-resolution topographic information (0.03 m) was established through photogrammetry. For comparison, the low-resolution topographic information was obtained from the contour lines of the 1:5000 digital map. The topographic information was depicted as a grid, with resolutions of 1, 5, and 10 m, and analyzed by setting the simulation grid size to 1, 5, and 10 m. According to the topographic resolution, no significant difference was obtained in the numerical simulation results, when high-resolution topographic information from UAV photogrammetry was used, and the analysis was similar to the actual debris flow. Additionally, when the size of the analysis grid for the simulation was 10 m, the simulation was very similar to the actual debris-flow situation. For predicting a risk area using a debris-flow model, it is very important to reflect actual information, such as topography, geology, and rainfall; technical parameters, such as the grid size, are also important. Moreover, determining the optimal grid size by considering the conditions of the study area, such as the basin area, is necessary.
Analysis of Evacuation Time and Evacuation Direction with Respect to Crowd Density on a Ramp
Authors: Kim Seo-young , Kong Ha-sung
Published: April 2023

This study aims to use evacuation direction and time as primary data for a situation where one needs to evacuate from a crowd-density place on a ramp by comparing and analyzing the relationship between the evacuation direction and evacuation time with respect to the crowd density on a ramp. The results showed that it took longer to exit the ramp when more than five pedestrians per area passed on the ramp. In addition, reducing the width of the ramp with a faux wall also increased the duration required for pedestrians to evacuate safely. Furthermore, it was found that less time was required to exit the ramp when the pedestrians evacuated in one direction, reducing the risk of accidents. Therefore, this study concludes that when there is a ramped passage at a place with a high crowd density, pedestrians should move in one direction during the evacuation process.
Predicting the Fire Spread Path in Jecheon Sports Center Using a Fire Dynamics Simulator (FDS)
Authors: Choi Yunju , Kim Yunseong , Jin Seunghyeon , Koo Inhyuk , Kwon Youngjin
Published: April 2023

In 2017, a fire at the Jecheon Sports Center resulted in approximately 80 casualties. Interestingly, the extent of fire damage on the second and third floors differed from the general type of fire damage. The white papers and reports of the Jecheon Fire Department indicated that the primary spread path of the fire was a freight elevator. However, analysis of the damage caused, CCTV footage, and victim testimonies suggested that the freight elevator may not have been the primary fire spread path on the second and third floors. Therefore, further investigation was needed to identify the cause of the fire. In this study, fire simulations were conducted using a Fire Dynamics Simulator (FDS) and compared with actual fire cases, which enabled us to predict the fire spread path accurately. It was found that the main stairway was more likely to have been the main fire spread path than the freight elevator.
Adaptive Fuzzy Inverse Optimal Output Regulation for a Class of Nonlinear Time‐Delay Systems
Authors: Meng Guizhi , Lv Yan
Published: January 2025

This paper aims to solve the adaptive fuzzy inverse optimal output regulation problem for a class of uncertain nonlinear systems with the exosystem. Both unknown nonlinear functions and time‐delay are considered here. The output regulation problem is first converted into a stabilization problem by employing the internal model principle. Then, fuzzy logic systems (FLSs) are employed to approximate unknown nonlinear functions. A new cost functional related to the internal model and time‐delay is established. An auxiliary system connected to time‐delay is constructed, and a new fuzzy state observer based on the auxiliary system is designed to estimate the unmeasured states. Further, by utilizing the adaptive backstepping control technique, the inverse optimal control method, and the Lyapunov–Krasovskii functional, a novel adaptive fuzzy inverse optimal output feedback controller and adaptive law are presented. It is also proved that all signals of the closed‐loop system are globally uniformly ultimately bounded (UUB); the proposed controller can achieve inverse optimization by minimizing the cost functional. Finally, a simulation example is provided to prove the effectiveness of the method in this paper.
Circularly Polarized Light‐Resolved Artificial Synaptic Transistors Based on Cellulose Nanocrystal Dielectric
Authors: Wang Sichun , An Bang , Ma Rong , Yi Zhengran , Li Wei , Liu Yunqi , Zhao Yan
Published: January 2025

Circularly polarized light (CPL)‐responsive artificial synaptic devices are of significant interest for advanced neuromorphic visual systems, as they enhance perceptual capabilities and enable the development of novel applications. Nevertheless, progress in this field is hindered by the lack of suitable CPL‐active organic semiconductor materials. In this study, environmentally friendly cellulose nanocrystals (CNCs) with a chiral helical structure as a dielectric layer to realize CPL‐resolved behaviors in organic synaptic transistors are utilized. The device exhibits a much stronger response to right‐handed CPL (RCPL) than to left‐handed CPL (LCPL) because the left‐handed helical structure of CNCs reflects LCPL while transmitting RCPL. By modulating electrical and CPL optical signals, the device successfully simulates multiple synaptic activities, including electrical synaptic plasticity, CPL‐dependent optical synaptic plasticity, and brain‐like learning and memory behavior controlled by photoelectric cooperative stimulation. Additionally, the device demonstrates applications in blue‐light‐induced visual fatigue simulation, CPL recognition, and optical wireless encrypted communication. Importantly, the sensitivity of the device to CPL is not constrained by the properties of organic semiconductor materials. These findings offer a promising strategy for the development of advanced artificial synaptic devices and CPL‐resolved neuromorphic visual systems.
Enhancing Interfacial Contact for Efficient and Stable Inverted Perovskite Solar Cells and Modules
Authors: Tan Zhengtian , liu Wenguang , Chen Rui , Liu Sanwan , Zhou Qisen , Wang Jianan , Ren Fumeng , Cai Yong , Shi Chenyang , Liu Xiaoxuan , Zhou Zheng , Zhu He , Miao Tianyin , Li Wenpei , Wang Mingkui , Liu Zonghao , Chen Wei
Published: January 2025

Defective perovskite surfaces severely limit the development of inverted perovskite solar cells (PSCs). Here, the impacts of surface treatment are systematically investigated with organic ammonium salts, namely piperidinium iodide (PpI) and piperazinedihydroiodide (PDI), on the performance of the formamidinium‐cesium (FACs)‐based PSCs. These results indicate that PpI, with its high dipole moment, tends to form 1D structures on the perovskite surface, which hinders electron transport. By contrast, PDI post‐treatment does not lead to the formation of such structures; instead, it forms a thin passivation layer that homogenizes the electric potential across the perovskite surface. This merit results in a favorable alignment of energy levels and a significant reduction in non‐radiative recombination at the perovskite/electron transport layer interface. As a result, the inverted perovskite solar module (PSM) achieved a power conversion efficiency (PCE) of 22.08% with an aperture area of 11.1 cm2 (certified 21.58%), showing a low‐efficiency discrepancy versus the small‐area counterpart with an efficiency of 25.09%. Notably, the PSM can maintain 92.5% of its initial PCE after continuous 1000 h of 1‐sun operation at 65 °C in ambient air.
Regulation of T Cell Glycosylation by MXene/β‐TCP Nanocomposite for Enhanced Mandibular Bone Regeneration
Authors: Yu Fei , Zhao Xing , Zhang Shuting , Lu Wenxin , Li Peilin , Yang Wei , Zhao Zhihe
Published: January 2025

Immune‐mediated bone regeneration driven by bone biomaterials offers a therapeutic strategy for repairing bone defects. Among 2D nanomaterials, Ti3C2Tx MXenes have garnered substantial attention for their potential in tissue regeneration. This investigation concentrates on the role of MXene nanocomposites in modulating the immune microenvironment within bone defects to facilitate bone tissue restoration. Ti3C2Tx MXenes are synthetized, incorporated into beta‐tricalcium phosphate ceramics (β‐TCP) nanocomposites (T‐MXene), and their osteoinductive and immunomodulatory effects are evaluated. The effects of T‐MXene‐treated T‐cells on bone marrow stromal cells (BMSCs) are explored. In addition, its therapeutic potential for bone regeneration is assessed in vivo using a critical‐sized mandibular bone defect model. The underlying mechanisms by which T‐MXene regulates T‐cell differentiation and bone regeneration are explored via whole‐transcriptome RNA sequencing. The scaffolds activate N‐glycosylation in T cells, which possess anti‐inflammatory and antioxidant effects, thereby inducing a pro‐regenerative response. T‐MXene increased the proportion of IL‐4+ T cells among primary T cells and mandibular lymph nodes, ultimately promoting osteogenesis in BMSCs and injured mandibles. The distinctive function of MXene‐based nanocomposites in osteoimmunomodulation provides a solid foundation for further exploration and application of MXenes as immune response modulators, potentially advancing their use in regenerative medicine.
Failure Mechanisms and Strategies for Vanadium Oxide‐Based Cathode in Aqueous Zinc Batteries
Authors: Sinha Rohit , Xie Xuesong , Yang Yang , Li Yifan , Xue Yuxuan , Wang Pengyu , Li Zhi
Published: January 2025

With the increasing safety concerns and consensus on sustainability, aqueous zinc‐ion batteries (AZIBs) are gaining significant attention as a green and efficient alternative for energy storage technologies. However, the prolonged and persistent chemical dissolution and electrochemical capacity fading of one of the dominant vanadium oxide cathodes has long posed an unavoidable challenge. Meanwhile, the energy storage mechanism of AZIBs remains controversial, along with the formation of parasitic and derived cathode‐related products during the repeated charge/discharge procedure. Herein, this review expects to provide a comprehensive analysis of the fundamental redox reactions in vanadium oxide‐based AZIBs, with particular emphasis on nanostructure features and their evolution, ionic transference, and ionic occupation, to elucidate the underlying mechanisms involved in the system. Furthermore, several effective strategies, including cathode modification and electrolyte design are summarized. Finally, the review offers potential avenues for advancing cathode materials, inorganic colloids, high‐entropy electrolytes, and mechanism characterization, thereby contributing to the continued development of this field.
Possibility of incorrect evaluation of intraoperative blood loss during open and laparoscopic distal pancreatectomy
Authors: Toya Keisuke , Tomimaru Yoshito , Kobayashi Shogo , Sasaki Kazuki , Iwagami Yoshifumi , Yamada Daisaku , Noda Takehiro , Takahashi Hidenori , Doki Yuichiro , Eguchi Hidetoshi
Published: January 2025

Aim

Decreasing intraoperative blood loss is one reported advantage of laparoscopic surgery compared with open surgery. However, several reports indicate that blood loss during laparoscopic surgery may be underestimated. No studies have evaluated this possibility in laparoscopic distal pancreatectomy (LDP). Here we evaluated estimated blood loss (e‐BL) compared to intraoperative blood loss (i‐BL) during distal pancreatectomy (DP).

Methods

This study included 114 patients undergoing DP in our institution during the study period. We examined the relationship between i‐BL and e‐BL. Based on these results, we further investigated the relationship with LDP.

Results

The laparoscopic approach was used in a significantly higher percentage of patients in e‐BL > i‐BL group compared to e‐BL < i‐BL group (55.9% vs 10.9%, p < 0.0001). Within the LDP group (n = 39), e‐BL was significantly more than i‐BL (388 ± 248 vs 127 ± 160 mL; p < 0.0001). Within the open distal pancreatectomy (ODP) group (n = 75), e‐BL was significantly less than i‐BL (168 ± 324 vs 281 ± 209 mL; p = 0.0017). The e‐BL > i‐BL trend in the LDP group was consistent, regardless of the indication for DP. In contrast, the finding of i‐BL > e‐BL in the ODP group was limited to patients with pancreatic cancer.

Conclusion

During LDP, e‐BL was significantly more than i‐BL. During ODP, e‐BL was significantly less than i‐BL, only in patients with pancreatic cancer. These results suggested the possibility of i‐BL underestimation during LDP, and overestimation during ODP in cases with pancreatic cancer.
Enhancing interfacial mass transfer for high‐viscosity fluids: Hydrodynamic and mass transfer by twin‐liquid film
Authors: He Long , Xie Hanguang , Zong Yuan , Zhao Ling , Dai Gance
Published: January 2025

The twin‐liquid film, which combines wall‐bounded film supported by a solid wall and confined‐free film through the opening window, has been investigated on a plate with multi‐windows. The interaction of wall‐bounded film and confined free film has been discussed and the optimal window configurations are obtained with consideration of mass transfer enhancement as well as film stability. The mass transfer rate of the opening window plate is increased by 1.9–2.6 times compared with the solid plate. The acceleration and thinning of the confined‐free film are the primary causes of its mass transfer enhancement, with additional contributions from the thinning of the wall‐bounded film. To achieve the highest mass transfer efficiency as viscosity increases and diffusion coefficient decreases, it is crucial to maximize the window size without compromising film formation. Twin‐liquid films show promising applications in the reactors involving highly viscous fluids such as carbon capture and devolatilization.
Enhancing Construction Safety Through Workplace Surveillance and Systematic Follow‐Ups
Authors: Muralidhar Gollapalli , Vinoth A. , Uniyal Upasana , Sen Krishna Nirmalya
Published: January 2025

Background

Globally, construction jobs are associated with serious occupational safety and health (OSH) risks. In large construction projects, managing OSH risks is challenging due to a multitude of factors, and it is important to have sound management strategies and innovative solutions to tackle these ever‐evolving OSH risks. Safety surveillance plays a pivotal role in accident prevention in the construction industry. We evaluated the effectiveness of ongoing surveillance coupled with proactive management follow‐up in a cross‐section of 26 large construction workplaces.

Methods

Trained safety observers were deployed using a digital platform to record and report risk conditions, along with the details such as category, potential risk, responsible persons, and so forth. At the same time a predictive tool to calculate the possibility of severe adverse outcomes such as “Lost Time Incident” (LTI) or fatality was introduced. The outcomes were followed up and reviewed by the leadership teams on a regular basis.

Results

Enhanced efforts from worksite safety observers resulted in capturing of higher number of safety lapses, which necessitated additional efforts from the line managers to take prompt corrective and preventive actions to mitigate OSH‐related risks. Over the study period, the rate of risk conditions being recorded showed a gradual downward trend, as did the associated rates of recorded injuries.

Conclusion

This study affirms the hypothesis that a structured proactive approach with active leadership involvement and prompt remedial actions can aid in significant improvement of working conditions and safety performance at construction projects.
Diacylation of Peptides Enables the Construction of Functional Vesicles for Drug‐Carrying Liposomes
Authors: Cho Christy J. , Kang Sangyoon , Pedebos Conrado , Khalid Syma , Brea Roberto J. , Devaraj Neal Krishna
Published: January 2025

Membrane‐forming phospholipids are generated in cells by enzymatic diacylation of non‐amphiphilic polar head groups. Analogous non‐enzymatic processes may have been relevant at the origin of life and could have practical utility in membrane synthesis. However, aqueous head group diacylation is challenging in the absence of enzymes. The use of charged peptides instead of canonical phospholipid head groups offers advantages with respect to ease of acylation and chemical diversity. Here we demonstrate that native chemical ligation (NCL) enables in situ synthesis of diacylated lipopeptides (D‐ALPs), which spontaneously self‐assemble into micron‐sized vesicles resembling cellular membranes. Diacylation occurs between non‐amphiphilic peptides possessing an N‐terminal cysteine, and acyl thioesters. Peptide head groups endow unique membrane functions, which is demonstrated by incorporation of an arginine‐glycine‐aspartic acid (RGD) motif, resulting in vesicle targeting to αvβ3 integrin‐overexpressing cancer cells. The biocompatibility and functional group programmability of D‐ALPs supports their broad utility as membrane mimetics.
Thermal Softening and Degradation of UHMWPE Composites: Effect of Melting Process
Authors: Zhang Run , Niu Kai , Tian Jing , Liu Mingfei , Hua Zetian , Jiang Lin , Fu Chenchao
Published: January 2025

This study investigates the effect of gradual melting process for crystallization zone on the thermal softening and degradation properties of ultra‐high molecular weight polyethylene (UHMWPE) composites. The results of the differential scanning calorimetry test indicate that UHMWPE composites exhibit an initial melting endotherm at low temperatures. UHMWPE composites show significant differences in storage and loss modulus at room temperature, but both values decline sharply with increasing temperature. The data reveals that the discrepancy in temperature values at a specified melting percentage is negligible (≤ 4°C). Thus, thermal softening is more significantly influenced by percentage of crystalline melting than by crystallinity. Most samples' vicat softening temperature (VST) values align with the melted temperature of about 50% crystalline regions. Furthermore, the VST curves show a notable displacement increase at 120°C, corresponding to a melting percentage of about 20%. The heat deflection temperature (HDT) values for UHMWPE composites range from 61°C to 67°C, aligning with the initial melting temperature with no significant variation. Moreover, the melting of crystalline regions does not influence thermal degradation, due to the significant gap between melt and degradation temperatures. This study reveals new understanding of thermal softening and degradation in semicrystalline composites.