bluuebunny/crossref_metadata_2025_split huggingface dataset:
Simulation of Size Effect and Strength Prediction in Normal to Ultra High Strength Concrete Shear Deficient RC Beams
Authors: Fareed Shamsoon , Ayub Laiba , Khan Asad-ur-Rehman 
Published: August 2023

Abstract
The high rise building construction using normal strength concrete results in larger cross sections, which results in enhanced flexural behavior. Along with the improved flexural behavior, shear characteristics are also increased, which is often overshadowed. Impact of the increasing size on the behavior of reinforced concrete (RC) beams was investigated in this study. The experimental investigation was executed to evaluate the behavior of natural aggregate concrete (NAC), and recycled aggregate concrete (RAC) RC beams under four-point bending. To explicitly study the behavior of RC beams in shear, the beams were kept independent of any shear reinforcement and an shear span to effective depth of 2.68 was kept constant. Numerical simulation was then conducted to replicate the experimental program followed by the investigation of concrete compressive strength and the size effect on the shear behavior of the RC beams. Beams with varying depths of 203 mm, 400 mm, and 600 mm, and widths of 152 mm, 300 mm, and 400 mm, having compressive strength varying from 20 MPa to 150 MPa were investigated. Results were compared in terms of load-displacement relationship and cracking patterns. Furthermore, existing equations for the shear strength prediction of concrete, proposed by different codes, were also studied and compared with the numerical investigations. Based on the investigation, it was observed that the role of size effect in defining the overall shear behavior of RC beams cannot be neglected and the available equations need to be updated to account for size effect.
A New Experimental Technique to Investigate the Load-Bearing Mechanisms of Smeared Rock-Socketed Piles Using In Situ X-ray CT Imaging
Authors: Murali Arun Kumar , Haque Asadul , Bui Ha Hong 
Published: August 2023

AbstractThe design of rock-socketed piles at the serviceability state primarily depends on the shaft resistance (skin friction) at the interface, which may be influenced by the presence of weak smear (e.g., bentonite filter cake, soil, and remolded weak rock). To date, two-dimensional direct shear interface testing has been utilized to interpret the effect of smear on the shaft response of bored piles. However, without the nondestructive testing and three-dimensional (3D) visualization of smeared interfaces, the effect of smear at the pile-rock interface cannot be accurately assessed. This study presents a novel methodology to cast and test small-scale rock-socketed piles with 3D smeared pile-rock interfaces using in situ X-ray computed tomography (CT) imaging. A new smear casting apparatus has been designed to incorporate desired smear fabrics distribution around the model piles comprising idealized saw-tooth asperities. Different materials were trialed to represent the smeared interfaces and the most suitable one for this study was chosen to be a mixture of petroleum jelly and kaolin through the evaluation of the load-displacement behavior and the X-ray CT images. Various smear configurations were cast on the leading faces of the pile asperities (smear-dominant, balanced rock-smear, and rock-dominant) and their placement and volume were compared with the design values to provide confidence in the proposed experimental methodology. Moreover, the micromechanics evolving at the fully smeared leading-faced interface were assessed in detail using the vertical load-displacement behavior and the corresponding X-ray CT images acquired during multi-stage in situ loading. Based on the observations, the interface mechanics for the smeared shafts were classified into smear compression, subsequent smear compression with shearing, and rock shearing. The proposed experimental methodology opens new avenues for studying the smear fabric effect on the load-bearing mechanisms of smeared piles socketed in soft rock.
Equivalence of Bilinear Hysteresis and Viscous Damping Energy Dissipation
Authors: Wei Biao , Chen Mingyu , Jiang Lizhong , Yu Yujie , Min Haozheng 
Published: August 2023

Abstract
To evaluate the energy dissipation differences between metal dampers and viscous dampers and to gauge the degree of equivalence between bilinear hysteresis and viscous damping, we studied the equivalence of bilinear hysteresis and viscous damping. Using a MATLAB program and the principle of equal energy dissipation, the energy dissipation effect of bilinear hysteresis was equated based on the effect of viscous damping. Under a state of sinusoidal excitation, the displacement response of the numerical method, which strictly considers the bilinear hysteresis, was compared with the displacement response of the equivalent viscous damping calculation method. The results show that the oscillation periods for the two models demonstrate high consistency, with the displacement curves in the steady-state response stage nearly identical. Because of the lag in hysteresis energy dissipation, the bilinear hysteresis system always reaches the steady-state stage slower than the equivalent viscous damping system, implying that the metal damper responds more slowly to transient energy. In the free vibration stage, the bilinear hysteresis system cannot return to the initial position, while the displacement of the equivalent viscous damping system approaches zero, suggesting that the self-resetting effect of the viscous damper is better.
Scavenger receptor B1 involvement in chronic obstructive pulmonary disease pathogenesis
Authors: Cervellati Carlo , Casolari Paolo , Pecorelli Alessandra , Sticozzi Claudia , Nucera Francesco , Papi Alberto , Caramori Gaetano , Valacchi Giuseppe 
Published: August 2023

Objective
Chronic obstructive pulmonary disease (COPD) is one of the main causes of morbidity and mortality in the United States. Oxidative stress due to cigarette smoking seems to be one of the major driving mechanisms in COPD pathogenesis. Since the scavenger receptor B1 (SR-B1) appears to play a key role in mediating the uptake for ɑ-tocopherol and other antioxidants in lung tissue, we aimed to investigate its role in COPD pathogenesis.

Methods
Lung tissue biopsies were obtained from 12 subjects; 6 of these had a diagnosis of COPD in a stable clinical state, the others 6 were current (n = 1) or ex-smokers (n = 5) with normal lung function (controls). 4-Hydroxynonenal (4-HNE)–SR-B1 adducts were detected by immunoprecipitation. ɑ-tocopherol concentration was determined by HPLC.

Results
SR-B1 levels were lower in COPD patients and these results parallel with lower levels of vitamin E in lung tissue found in COPD patients. This effect can be the consequence of oxidative posttranslational modifications, confirmed by the binding of the peroxidation product 4-HNE to SR-B1 possibly leading to its degradation.

Conclusions
The loss of SR-B1 may be involved in lung ɑ-tocopherol content decrease with the consequence of making lung tissue more susceptible to oxidative damage as suggested by the SR-B1–4-HNE adduct formation, and more prone to COPD development. Thus, our findings suggest a novel role of SR-B1 in pathomechanisms underlying COPD.

Significance statement
Chronic obstructive pulmonary disease (COPD) is one of the main causes of morbidity and mortality in the United States. Oxidative stress has been suggested to be the major driving mechanism in COPD pathogenesis. Loss of scavenger receptor BI (SR-B1) significantly decreases tocopherol lung content making lung tissue more susceptible to oxidative damage. The results of our study show that SR-B1 levels were lower in COPD patients and these results parallel with lower levels of vitamin E in lung tissue. Our findings suggest a novel role of SR- B1 in pathomechanisms underlying COPD.
Seguridad y salud ocupacional a los agentes químicos en enfermeras del Hospital Cayetano Heredia Lima
Authors: Tipán Caicedo Paola Alexandra , López Kohler José Raúl 
Published: August 2023

El estudio, trata de comprobar si un Sistema de Control de Seguridad y Salud Ocupacional controla el riesgo potencial a la exposición a agentes químicos peligrosos en enfermeras del Hospital General Cayetano Heredia Lima – 2019, con la participación de las enfermeras y los expertos, a través de una encuesta a ambos grupos, para poder determinar el riesgo de los agentes químicos que afectan a las personas, con riesgo bajo, moderado y alto, identificando la preocupación de las enfermeras y con opinión favorable de implementar el modelo de control del riesgo de exposición a agentes químicos.
Se ha realizado un estudio y con esa información y experiencias nacionales e internacionales se elaboró una propuesta que establece las medidas, con la opinión de expertos que indicaron la importancia de incluirlo en el Plan de Seguridad y Salud en el Trabajo, certificando que el modelo es favorable, el que debería implementarse y no se realizó por efectos de la pandemia, el estudio es viable. Queda en manos de los lectores para poder analizarlo, observarlo, determinar su valor y alcanzar las sugerencias y recomendaciones que de estilo o necesidad se requiera.
Adult Inpatient Services in Pediatric Hospitals: A National Mixed Methods Study
Authors: Peterson Rachel J. , Patel Palka , Torke Alexia , Ciccarelli Mary R. , Jenkins Ashley M. 
Published: August 2023

OBJECTIVES
Some pediatric institutions have developed adult inpatient services to enable quality care of hospitalized adults. Our objectives were to understand the characteristics of these adult inpatient services in pediatric hospitals, barriers and facilitators to their creation and sustainability, and patient and system needs they addressed.

METHODS
An explanatory mixed methods study was conducted using a distribution of an electronic survey followed by targeted semi-structured interviews of directors (or designates) of adult inpatient services in US pediatric hospitals. The survey identified institutional demographics, service line characteristics, and patient populations. An interview guide was created to explore survey findings and facilitators and barriers in the creation of adult inpatient services. Interviews were conducted after survey completion. A codebook was created using an inductive thematic approach and iteratively refined. Final themes were condensed, and illustrative quotes selected.

RESULTS
Ten institutions identified as having an adult inpatient service. Service staffing models varied, but all had dually trained internal medicine and pediatrics physicians. All participants voiced their respective pediatric institutions valued that these services filled a clinical care gap for hospitalized adults adding to whole-person care, patient safety, and health system navigation.

CONCLUSIONS
Adult inpatient services in pediatric institutions have been present for &gt;15 years. These services address clinical care gaps for adults hospitalized in pediatric institutions and use specialized internal medicine and pediatrics knowledge. Demonstrating return on investment of these services using a traditional fee for service model is a barrier to creation and sustainability.
Psychedelics, embodiment, and intersubjectivity
Authors: Blevins Kai River 
Published: August 2023

AbstractBackground and aimsResearch into the social aspects of set and setting have demonstrated that race is a significant factor in psychedelic experiences for racially marginalized populations. Yet, many studies of psychedelic-induced experiences continue to proceed without collecting data on or considering the influence of race or other social categories. These approaches abstract subjectivity from its embodied and historical conditions, isolating consciousness in ways that do not accord with lived experience.MethodsThis article draws on critical phenomenology, anthropology, and treatments of race in the field of psychedelic studies to outline how social categories mediate subjective experience in historically specific ways through the framework of embodiment.ResultsI argue that consciousness is fundamentally intersubjective, including during psychedelic-induced experiences. Intersubjectivity is an existential condition that makes possible meaning, communication, and socialization, processes which rely on and are perpetually (re)enacted through social categories. Therefore, studies of psychedelic-induced experiences must account for the foundational role that social categories play in constituting such embodied experiences and their effects.ConclusionsThis approach makes embodied differences matter to the study of psychedelic-induced experiences, opening new avenues of inquiry that foreground identity, power, and context in both clinical and naturalistic research.
Da invisibilidade ao multicolorido: uma instalação artística para narrar memórias e apresentar marcas identitárias da EMEF Professor Guilherme Sommer
Authors: Henz Sabrina , Rosa Lúcia Regina Lucas da , Ferreira Rute Henrique da Silva 
Published: August 2023

Este trabalho apresenta o recorte de uma pesquisa de mestrado profissional aplicada em Memória Social e Bens Culturais e desenvolvida em uma escola da rede pública municipal de Teutônia - RS. Versa sobre a realização de uma instalação artística baseada nas memórias de membros da comunidade escolar para elucidar marcas identitárias da instituição ao longo de sua história, com o objetivo de apresentar uma imagem mais positiva do educandário a toda população. A relação intrínseca entre memória e identidade é a fundamentação da narrativa comunicada pela obra. O processo criativo, desde o levantamento dos dados e concepção da obra até sua execução e discussão após a realização, apresenta as etapas de construção deste produto. Ainda que não seja possível mensurar o impacto da obra recém realizada na imagem externa da escola, constata-se que promoveu um movimento reflexivo interno acerca de aspectos da identidade além de valorizar a história e memórias da instituição para sua comunidade escolar.
Investigating the relationship between sleep quality and stress, anxiety and depression in shift workers of one of the food industries
Authors: F Dehghan , A Safari Variani , S Varmazyar 
Published: August 2023

Introduction: Shift work among industrial workers can lead to poor sleep quality, which instead is associated with stress, anxiety, and depression. This study aimed to investigate the relationship between sleep quality and stress, anxiety, and depression in shift workers in one of the food industries.
Materials and Methods: The participants in this descriptive-analytical study were 208 production line workers in one of the food industries. Data were collected using a demographic questionnaire, Pittsburgh Sleep Quality Questionnaire (PSQI), and depression, anxiety, and stress (DASS-21). Spearman's statistical test was used to investigate the relationship between sleep quality and depression, anxiety, and stress. The data were analyzed using SPSS-23 software.
Results: About 42% of workers reported undesirable sleep quality (score more than 5). Almost half of the workers reported a level of normal stress, anxiety, and depression. The results showed that there is a positive and significant correlation between sleep quality and stress (r=0.20, P<0.01) and sleep quality and depression (r=0.172, P≤0.01) so that the quality of sleep, stress, and depression interact with each other and have a mutual effect.
Conclusion: According to the results of this study, reducing stress and depression can improve the sleep quality of workers, and in turn, good sleep quality can lead to reducing stress and depression in shift workers. Therefore, identifying the influencing factors and corrective strategies to reduce stress, anxiety, and depression can play an important role in improving the sleep quality of shift workers.
Investigating the impact of ergonomics training in reducing musculoskeletal discomfort among office workers
Authors: AM Abbasi , S Bahmanipour , M Rahimi , Z Rashidi , H Sayyadi 
Published: August 2023

Introduction: Office workers, regardless of educational principles, may be exposed to musculoskeletal injuries due to the nature of their work. Therefore, the present study was conducted to investigate the effect of ergonomics training in reducing musculoskeletal disorders among the administrative staff of an Ilam University of Medical Sciences campus.
Materials and Methods: In this descriptive-analytical study, 178 administrative staff of Ilam University of Medical Sciences Campus 1 was examined. Musculoskeletal disorders were evaluated using the Nordic questionnaire. Ergonomic risk factors of the workplace were assessed by Rapid Administrative Strain Assessment (ROSA) before and after the training. Data analysis was done through SPSS version 26 statistical software.
Results: According to the findings obtained from the Nordic questionnaire, it was found that the most disorders in the past year were in the back (56.2%) and neck (55.6%) areas and the ROSA evaluation results showed that 24.4% of the subjects the study was at the ergonomic level with high risk. After the implementation of training programs, the results showed that the prevalence of disorders in 9 areas decreased. Also, demographic variables did not have a significant effect on the prevalence of musculoskeletal disorders. (Significance level 0/05 is assumed)
Conclusion: The results of this study showed that ergonomic training can be an effective method to reduce musculoskeletal discomfort in office work environments.
The physical activity development model of Mobarake steel company employees
Authors: M Lotfi Foroushani , M Salimi , M Mostahfezian , M Soltan Hosseini 
Published: August 2023

Introduction: Human capital is one of the most important resources of an organization, and as a result, organizations strive to increase their productivity. Since employees' health contributes to it, this study aimed to determine the physical activity development model of Mobarake Steel Company employees.
Materials and Methods: The current research is descriptive-analytical. It is a kind of exploratory and applied research that helps to solve the problem in Mobarake Steel Company of Isfahan. The statistical population in this research in the qualitative part includes all specialists, managers, and experts of Mobarake Steel Company as well as knowledgeable academic staff members who have expertise or experience in the field of human resources policy and sports management. Also, in the quantitative part, all the employees of Foulad Mobarakeh formed the statistical population of the research. The research tools in the qualitative and quantitative part were made by the researcher and based on the components extracted from the library studies and the results from the interviews, respectively. The research method in the qualitative part was Glazer's approach data model and in the quantitative part confirmatory factor analysis. The validity of the formal method and reliability was also confirmed through retesting. Data analysis was done using SPSS version 26 and SmartPLS software.
Results: Evaluation of the obtained model using model fit indices has shown that the model was suitable (SRMR, 0.186, Chi-square, 341.256, and NFI, 0.087). Also, the final dimensions of the model include the psychosocial environment with the dimensions of promoting sports and physical activity and encouragement and support, the physical environment with the dimensions of providing infrastructure and active company, health resources with the dimensions of program alignment and evaluation and monitoring and company participation with the dimensions of management and Planning was achieved.
Conclusion: Considering the comprehensive health program, considering the calendar and regular sports program, creating culture and forming a sports team with a dynamic environment, monitoring related instructions, forcing employees to evaluate physical health and monitoring the progress of physical activity development programs, managers' support, per capita allocation Appropriate exercise and ergonomics of control rooms and related equipment such as chairs and computers and things such as the level of lighting and even per capita dedicated space for employees and encouraging employees can be the results of the implementation of this research model.
The Impact of Combined Exercises in the Workplace on Body Composition and Some Psychological Indices of Female Employees After the COVID-19 Pandemic
Authors: KH Naderi Ashkeftaki , M Ghafari , E Bani Talebi 
Published: August 2023

Introduction: After the covid-19 pandemic, the immobility of people and the reduction of their physical activities increased. It seems necessary to maintain the motivation of employees to perform physical activity after this period because an employee's job in normal conditions is characterized by inactivity and inactivity. As a result, it affects the physical and mental health of the person, and following this event mentioned features intensified. The purpose of this research is to investigate the effect of combined exercises in the workplace on the fat profile and psychological indicators of female employees after the end of the Covid-19 disease.
Materials and methods: This study is semi-experimental and applied, which was conducted on female employees of Shahrekord University in 1401. Thirty people were divided into two experimental (15 people) and control (15 people) groups randomly by inviting cooperation. The 12-week sports intervention was carried out three times a week, and each session lasted from 30 minutes to a maximum of one hour. The psychological indicators before and after the exercises, were evaluated by the relevant questionnaires. To measure the biochemical variables, blood samples (5 cc) were taken before and 48 hours after the end of the intervention. A correlation T-test was used for intra-group comparisons. An independent T-test was used for inter-group comparisons at a significance level of 0.05 using SPSS software.
Results: The findings showed that combined exercises in the work environment significantly improved the quality of life (p=0.001), sleep quality (p=0.001), mental well-being (p=0.001), belonging to work (p=0.001) and resilience (p=0.011) in the experimental group compared to the control. Also, no significant difference was observed in HDL (P=0.184), LDL (P=0.902), cholesterol (P=0.511), and triglyceride (P=0.268).
Conclusion: Workplace combined exercises can significantly improve the employees' quality of life, sleep, and psychological issues. These results are important for managers and organizations to consider programs to maintain employees' mental and physical health, especially where viral diseases such as Covid-19 impact employee health. But it did not affect blood lipids (HDL, LDL, triglycerides, and cholesterol), which may be due to the low intensity and duration of the exercise and lack of control over the subjects' nutrition.