bluuebunny/crossref_metadata_2025 huggingface dataset:
Job satisfaction and turnover intention: A comprehensive review of the shared determinants
Authors: Jogi Swati , Vashisth Kamal Kant , Srivastava Supriya , Alturas Bráulio , Kumar Devesh
Published: November 2024

Background

Human capital is a critical asset for organizations, impacting financial performance and market value. Maintaining a stable, committed workforce is challenging. Job satisfaction emerges as a pivotal factor influencing employees’ intentions to leave or turnover intention. However, both encompass diverse dimensions that can exert positive or negative effects.

Objectives

To explore the common factors affecting job satisfaction and turnover intention, focusing on the significant positive and negative relationships.

Method

A systematic review based on the PRISMA framework has been conducted. The data has been precisely identified, evaluated, and extracted from the SCOPUS database based on set benchmarks.

Result

The investigation revealed a variety of determinants that exhibit a significant correlation with job satisfaction and turnover intention, manifesting in both positive and negative associations. Furthermore, these elements have been linked to established motivational theories, suggesting a theoretical underpinning for the observed relationships between workplace dynamics and employee behavior.

Conclusion

The result intended to provide a comprehensive understanding of the factors by offering a framework for studying job satisfaction and turnover intention guiding future research in the field of knowledge.
COVID-19 restrictions and sense of humanness: the role of human needs threat / Las restricciones por la COVID-19 y el sentido de humanidad: el papel de la amenaza a las necesidades humanas
Authors: Baldissarri Cristina , Raguso Giuseppe , Valtorta Roberta Rosa , Andrighetto Luca , Volpato Chiara
Published: November 2024

The present study analyses the effects of COVID-19 restrictions on self-perception of humanness through the increased sense of threat to fundamental human needs. Furthermore, in an explorative way, we analysed the possible impact of this pattern on the identification with all humanity, in terms of bond with humanity and concern for all humanity. Through a preregistered experimental study ( N = 278), we showed that participants who were asked to recall COVID-19-related restrictions reported a greater sense of human needs threat and, in turn, higher levels of self-dehumanization. In addition, we found that remembering restrictions, compared to the control group, led to lower concern for humanity and indirectly affected it via increased threat of human needs and self-dehumanization.
Research progress on the potential correlation between polycystic ovary syndrome and periodontal disease
Authors: Zhang Huishan , Lin Xiaoping
Published: November 2024

Over the past few years, the correlation between periodontal disease (PD) and polycystic ovary syndrome (PCOS) has attracted widespread attention owing to the increased incidence of these diseases. Several studies have suggested a possible link between the two. In this narrative review, we examined the epidemiology, common risk factors, and pathological mechanisms of PCOS and PD to investigate the potential association between these diseases. Evidence from the literature indicates that PCOS and PD can interact with each other. Common risk factors, such as microbial homeostasis imbalance owing to dysbiosis, along with multiple hormone and inflammatory mediators, as well as inflammatory responses owing to oxidative stress and oxidative responses owing to ferroptosis, are all associated with the pathogenesis of both diseases. Further studies are needed to clarify the specific mechanisms of interaction between PCOS and PD, which could clarify future directions in disease management and combined multidisciplinary treatment.
Complete dynamic model of a Slinky based on torsion springs
Authors: Cumber Peter S
Published: November 2024

In this paper a dynamic torsion spring model is extended to be applicable to Slinky's with a wide range of possible initial configurations. In the extended model the coil-on-coil impact is modelled by conserving momentum and modelling the impact as an inelastic impact with a zero coefficient of restitution. The extended model is applied to a plastic Slinky and a steel Slinky. The extended model is demonstrated to have the qualitatively correct dynamic behavior. The extended torsion spring model is now in a form to be applied to a wide range of Slinky behavior such as pseudo-levitation, wave propagation phenomena and stair walking.
A paradox of ethnic politics? Minority language recognition and political trust in an authoritarian setting
Authors: Öztürk Sevinç , Öztürk Aykut
Published: November 2024

Does a state's increased use of a minority language affect the political attitudes of minorities using that language? To explore the impact of minority language recognition on minority individuals’ political attitudes, we conducted an online survey experiment in Turkey, recruiting citizens of Kurdish origin. Our results point to a recognition paradox. While Kurdish people in Turkey become more satisfied with state services when these services are provided in the Kurdish language, this satisfaction does not increase trust in state institutions. On the other hand, the recognition of the minority language further increases demands for policies regarding that ethnic language.
Study of erosion wear by solid particle of a PMMA/SiO2 hybrid coating with graphene oxide applied on a composite laminate
Authors: Govea Paz Luis Issai , Martínez Pérez Armando Irvin , Vera Cárdenas Edgar Ernesto , Moreno Ríos Marisa , González Carmona Juan Manuel
Published: November 2024

This study reports the tribological performance of a family of PMMA/SiO2 hybrid coatings with graphene oxide applied on composite laminate substrates. The transformation from graphite to graphene oxide was carried out using a high-energy mill for 90 minutes. The composite laminates of epoxy resin matrix and layers of bidirectional carbon fiber were obtained through the vacuum infusion process. The coatings were applied on the composite laminates using the dip-coating method. To disperse the graphene oxide in the hybrid solutions, an ultrasonic bath (40 kHz) was used during the immersion of the substrate. Tribological tests of erosive wear by solid particle impact (beach sand) were performed on a horizontal erosion test platform under conditions of pressure of 45 psi, impact velocity of 6 m/s, distance between nozzle and specimen of 10 mm and impact angle of 90°. The results showed that coatings with graphene oxide increase their protection against erosion by 50 (9-PMMA/1-SiO2-2GO) to 54% (9-PMMA/1-SiO2-1GO) more than the coating without graphene oxide. The results obtained could be considered for using this type of coating as an alternative protection on the leading edge of wind turbine blades that are exposed to conditions of erosion wear by solid particle impact.
Organizational Culture and Effectiveness in Community-Based Nonprofits
Authors: Langer Julie , Camarena Leonor , Jong Jaehee
Published: November 2024

Community-based nonprofits have traditionally emphasized group and developmental cultures which stress the importance of people and transformation. However, evolving institutional environments that champion competing cultures associated with professional and enterprising ideals have increasingly interpenetrated contemporary nonprofits. Drawing on the Competing Values Culture Framework (CVCF), this research explores how organizational members define the complex contemporary landscape of organizational culture in community-based nonprofits and examines the relationship between diverse organizational cultures (e.g., group, developmental, hierarchical, and rational) and perceptions of effectiveness. Results indicate that employees in community-based nonprofits view group cultures as the most characteristic of their organizations, although no organization is characterized by a single culture. In line with the CVCF, we find that each organizational culture is associated with the achievement of different measures of organizational effectiveness in community-based nonprofits. We conclude with a discussion of what this means for research and practice.
Study on the influence of shielding effect for plasma cloud on multi-field coupling mechanism during laser cladding
Authors: Li Chang , Sun Yichang , Sun Han , Yu Menghui , Han Xing
Published: November 2024

Laser is a kind of electromagnetic wave. During laser cladding, metal vapor will be produced when the temperature reaches the material sublimation point, and plasma clouds will be produced after vapor atoms are ionized by laser. When the laser beam passes through the plasma cloud, it will be absorbed or refracted, resulting in the decrease of laser energy reaching the substrate surface. Plasma cloud shielding effect will directly affect the multi-field coupling behavior during laser cladding. It is significant to quantitatively reveal the influence mechanism of plasma cloud on multi-field coupling during laser cladding for improving the cladding layer quality. In the paper, a multi-field coupled numerical model for laser cladding of Fe60 with ASTM 1045 disk laser was established. The interaction between the waist beam of cladding powder jet, plasma cloud and laser beam was considered in the modeling. The influence of plasma cloud shielding effect on transient evolution for the temperature field, flow field, and stress field during laser cladding was compared and analyzed. The results show that the maximum temperature of molten pool is less than 2700 K, no plasma cloud will be produced during cladding. When the temperature is higher than 2700 K, the plasma cloud initiates. Under the same conditions, the molten pool temperature slightly decreases, the velocity decreases, and the stress increases slightly due to the shielding effect of the plasma cloud. And with the increase of laser power, the shielding effect of plasma cloud is more and more significant.
Health services delivery factors affecting HIV retesting among pregnant women at 34 weeks gestation in Saboba District, Northern region, Ghana
Authors: Abanga Williams Azumah , Klu Desmond , Dery Maxwell , Fusheini Iddrisu , Dwomoh Salifu , Kubio Chrysantus , Tagbor Harry Kwami
Published: November 2024

Background

Vertical transmission of HIV is a major global public health issue, particularly due to maternal HIV acquisition during pregnancy, challenges in enrolling pregnant women living with HIV into antiretroviral therapy programmes, and loss to follow-up. The factors influencing HIV retesting in pregnant women with an initial HIV-negative results are understudied. The study examined health service delivery factors affecting HIV retesting among pregnant women.

Methods

A cross-sectional study was conducted in six health facilities in the Saboba District in 2023. Pregnant women who initially tested HIV-negative and were attending antenatal clinics at 34 weeks gestation or later were randomly selected. Data was analyzed using Stata version 15.0. Logistic regression was used to examined the health service factors affecting HIV retesting at a 0.05 significant level.

Results

Out of 445 pregnant women initially HIV-negative, only 21.1% were retested at 34 weeks gestation. Pregnant women receiving antenatal care at health centers were less likely to be retested [aOR = 0.34; CI: 0.14–0.84], while those who spent less time during ANC were more likely to retest [aOR = 2.58; CI: 1.33–5.01].

Conclusions

Improvement in HIV retesting requires reproductive health units to develop strategies to enhance coverage and reduce waiting times at health centers could encourage more pregnant women to retest for HIV.
An improved RRT* drone three-dimensional path-planning algorithm based on point cloud maps
Authors: Zhao Wanli , Wang Hao , Liu Yan-Jun , Liu Lei
Published: November 2024

Given the problems of slow convergence and blind sampling of the Rapidly-exploring Random Trees (RRT*) algorithm in 3D path-planning of UAVs, this paper proposes an improved bidirectional probabilistic target bias RRT* algorithm for 3D path-planning of UAVs based on point cloud maps. Initially, 3D point cloud maps and the dynamic step size necessary for the expansion of the RRT* algorithm are derived through the implementation of 3D map reconstruction and point cloud analysis techniques. Subsequently, a double sampling mechanism of random and target sampling is combined with the expansion strategy of the Bi-RRT* and RRT*-Connect algorithms to generate a bidirectional random tree, which improves the search speed and shortens the path. Furthermore, the influence of a gravitational mechanism, generated by the goal, is considered to direct the growth of the random tree toward the target. A collision avoidance strategy based on KD-tree is also introduced to enhance collision detection efficiency and mitigate collision risks. Additionally, cubic spline optimization is employed to achieve a smoother path. Finally, in order to illustrate the viability and efficacy of the proposed algorithm, a comparative analysis is performed between the enhanced algorithm and the RRT*, P-RRT*, and Bi-RRT* algorithms across two distinct environments.
Retrospective analysis of the etiology and drugs for vitreous hemorrhage caused by non-diabetic retinopathy and non-traumatic factors
Authors: Dong MingXia , Xiao Qing , Mei YunTeng , Fan Bao Liang , Liu ChenWei
Published: November 2024

Objective

To retrospectively analyze the etiology of non-diabetic retinopathy (DR) and non-traumatic vitreous haemorrhage (VH), and the effects of different anti-vascular endothelial growth factor (VEGF) drugs.

Methods

A retrospective analysis was conducted on VH patients diagnosed as non-diabetic retinopathy or trauma. Among 101 patients treated with anti-VEGF drugs, there were 48 cases in the Conbercept group and 53 cases in the Ranibizumab group. The causes of bleeding and gender distribution of the included cases were analyzed.

Results

In cases of retinal vein occlusion, the proportion of males was much higher than females ( p < 0.05). After treatment, the best corrected visual acuity (BCVA), intraocular pressure, central macular thickness (CMT), aqueous humor VEGF, TNF-α, IL-10, and IL-6 of the two groups showed a decreasing trend ( p < 0.05). The Conbercept group had markedly lower CMT than the Ranibizumab group ( p < 0.05). In addition, there existed no significant statistical differences between the two groups in terms of BCVA, intraocular pressure, aqueous humor VEGF, TNF-α, IL-10, IL-6, incidence of adverse reactions, and recurrence rate ( p > 0.05).

Conclusion

In patients with non-DR and traumatic VH, retinal vein occlusion, perivenous retinitis, retinal tears/detachment, exudative AMD, and polypoidal choroidal vasculopathy were the main etiologies. Conbercept and Ranibizumab had comparable efficacy and could effectively improve visual acuity and aqueous humor inflammation, with high safety and low recurrence rate. Conbercept had a more pronounced effect on the reduction of CMT in patients.
Multi objective design optimization of self-expandable nitinol braided stents
Authors: Hoseini Seyedeh Farzaneh , Spaggiari Andrea
Published: November 2024

Cardiovascular stents are indispensable medical devices used to treat vessel-related issues such as atherosclerotic plaque. In the past, stents were mainly made of materials like stainless steel or cobalt-chromium alloy. However, over the last two decades, research has focused on the use of Nitinol (NiTi) due to its superior properties such as super-elasticity, biocompatibility, and strength. The aim of this paper is to optimize the design of an open-ended braided stent, subjected to radial compression, with enhanced performance. The optimization process uses Multi-Objective Particle Swarm Optimization (MOPSO), which explores three design variables, namely wire diameter, number of coils, and braided angle, to determine the optimal shape that maximizes radial pressure stiffness and radial force exerted on the vessel walls while minimizing foreshortening. The analytical model developed is compared against literature findings, and the optimization results are implemented in a finite element analysis solver and compared with existing references. The results show that the optimized design using MOPSO enhances the stent’s average radial force and radial pressure stiffness by 28% and 40% respectively, while decreasing foreshortening by nearly 5%. The results demonstrate the feasibility of MOPSO for optimizing braided NiTi stents and the use of FEM for validating optimized designs.
Through the Queue: Navigating Trust Factors in Medical Waiting Spaces Among Women From Three Demographic Groups
Authors: Huber Amy , Bailey Rachel
Published: November 2024

Despite the many benefits of primary healthcare, persistent disparities disproportionately impact minority groups, marked by a higher prevalence of preventative health issues among African Americans and Hispanics compared to non-Hispanic White Americans. In addition, trends indicate a decline in U.S. adults having a primary care physician. Medical trust, particularly relevant in preventative care, significantly influences healthcare-seeking intentions among minoritized populations and poses a substantial barrier to women’s primary healthcare. Building on Andersen’s Behavioral Model of Health Services Use, this study’s purpose was to understand the influence of the waiting room environment on medical trust across different demographic groups. For this inquiry, we sampled African American, Hispanic/Latina, and non-Hispanic White women aged 18–40; groups disproportionately impacted by rising maternal mortality rates. Employing a sequential mixed-methods approach, including a questionnaire with 622 respondents and 25 interviewees, we uncovered that certain spatial characteristics and amenities, such as welcoming and calming environments, positively impact medical trust. Moreover, clear signage, well-maintained environments, and the inclusion of provider images and credentials (i.e., trust proxies) were similarly valued. Statistically significant different preferences also emerged, with African Americans prioritizing seating options, provider images, positive distractions, and the presence of ethnically similar patients at higher levels. Qualitative analysis indicated that trust proxies in the built environment had a greater impact on African Americans, while Hispanics appeared to be more influenced by person-centered characteristics. This study’s findings provide valuable guidance for those aiming to optimize waiting rooms for medical trust and, consequently, improve women’s healthcare outcomes.
Agents of Change or Counterarguing? Investigating the Source Credibility of Celebrity Versus Traditional Experts on Health and Political Behaviors
Authors: Hubner Austin Y. , Watts Judy
Published: November 2024

Two online experimental studies ( nstudy1 = 318, nstudy2 = 462) were conducted to examine whether social media informant type (celebrity influencer vs. expert) and presentation type (numeric vs. generic information) influenced behavioral intentions. Results from Study 1 found that expert-authored posts with numeric information were more persuasive for credibility assessments and, in turn, intentions to obtain the COVID-19 booster vaccine. In Study 2, we retest our hypotheses in the context of support for police reform. Contrary to expectations, neither message manipulation persuaded individuals. Partisanship, however, played a key role in behavioral intentions.
Faith-Based Development in Affordable Housing and Reuse of Religious Property: Promising Practices and Social Alignment with Urban Planning
Authors: Fisher Catherine C. , Ortiz Larry , Alemi Qais , Nakaoka Susan Lares
Published: November 2024

Currently, the United States faces an affordable housing crisis. In urban cities, buildable land for low-income housing is scarce and prohibited by exclusionary zoning laws. A growing number of religious congregations are developing under-utilized land to create affordable housing, motivated by both faith mission and economic need. This research study seeks to examine successful congregation affordable housing partnerships, identify development practices and compare them to urban planning standards. Drawing on social capital theories, we assess whether congregation member social networks play a significant role in project success. Interviews and online survey data were collected from representatives of 33 congregation sponsored affordable housing development projects. Qualitative analysis identified successful practices for forming the congregation-developer partnership and engaging congregation and community members in the planning process. Survey findings demonstrate congregation affordable housing development projects obtained a high percentage of urban planning social indices, including locating projects in a higher opportunity area and provision of resident social support services. Faith representatives reported that congregations mediated their social capital as a main strategy to overcome neighborhood opposition.
Non-combustible nicotine product cessation interventions in adolescents and young adults: A systematic review
Authors: Bergman Rasmussen Sofie K. , Pisinger Charlotta
Published: November 2024

New nicotine products such as e-cigarettes, heated tobacco and smokeless tobacco/nicotine products, are popular among young people. Most regret having started using these products, but little is known about how to help adolescents and young adults to quit most effectively. This systematic review aimed to identify all existing studies on the efficacy of cessation interventions on the use of novel nicotine and tobacco products in adolescents and young adults. Original randomized controlled trials on cessation of use of e-cigarettes, heated tobacco and smokeless nicotine/tobacco products aimed at young people aged between 15 and 25 were included. The exclusion criteria were interventions on cessation of cigarette/conventional tobacco smoking and studies that focused on preventing initiation rather than cessation. Both researchers independently screened articles and extracted data. The risk of bias was assessed. A total of 345 papers were screened for eligibility, and 9 original studies were included. All studies were conducted in the United States. Populations ranged from 24 to 2588. Five studies reported significant effects of the study interventions, of which 4 were extensive multi-component smokeless tobacco cessation interventions in a high school or college setting. The fifth effective intervention was an SMS text-based e-cigarette cessation program. Low-grade evidence suggests that multi-component interventions that include counseling and an SMS text-based cessation program that is also based on behavioral support may be effective in the cessation of the use nicotine products in adolescents and young adults. Further research that includes cessation of the use of all new tobacco- and nicotine products is needed.
The rhetoric of ideological transgression: History and psychological language in the archives of the Securitate
Authors: Plamadeala Cristina , Tileaga Cristian
Published: November 2024

This paper presents a discursive and sociocultural approach to the rhetoric of ideological transgression in the archives of the Securitate (the infamous Romanian communist secret police) during the Gheorghe Gheorghiu-Dej (1948–65) and Nicolae Ceaușescu (1965–89) periods. First, we explore Securitate’s discursive practices of defining and responding to ideological transgression and antagonism. We examine the case of two suspected legionaries (Constantin Vaman and Petru Mureșan) to illustrate how the Securitate chose to catalogue and describe those it considered prototypical ideological antagonists. We look at the language and categories used in Securitate files, surveillance operative reports, and instructional manuals to describe people the communist state deemed ‘enemies of the state.’ The first part of the paper offers a brief historical overview of the Securitate and its role in quelling opposition and dissent. We then highlight the contribution of discursive psychology to the analysis of discursive practices of a professional community in the service of state power as a cultural form of communication. Finally, we show how psychological language is strategically mobilized to define a particular class of ideologically transgressive behavior in Securitate’s surveillance apparatus.
Experimental study on the shear behavior of joints in precast concrete segmental foundations
Authors: Jiang Qing , Yu Fei , Chong Xun , Zhu Dong , Huang Junqi , Feng Yulong
Published: November 2024

By adopting the segmental precast post-tensioning method in foundations, the efficiency of constructing precast concrete structures can be significantly enhanced. To study the shear behavior of precast concrete segmental foundation (PCSF) joints, 13 double shear specimens were tested. The failure mode and shear carrying capacity ( Vu) of the specimens were investigated. The parameters which were studied included the type of shear key, the confining stress, the type of bond for the internal post-tensioned bars and the application of epoxy resin. The results showed that design parameters changed the crack extensions of the joints. The Vu of the key unreinforced specimens was 29.14% lower than that of the reinforced specimens. After grouting of the post-tensioned ducts, the average Vu increased by 112.87% than that before grouting. With the increased in confining stress and the application of epoxy resin, the average Vu of the specimens increased by 21.9% and 48.45%, respectively. Finally, the test results were compared with the predicted results for the Vu of the joints. In predicting Vu for PCSF joints, the dowel action of the bonded post-tensioned reinforcement and the action of the reinforcement in the key must be considered on the basis of the existing prediction expressions.
What is news? Mapping the diversity of news experiences in digital trace data
Authors: Loecherbach Felicia , Moeller Judith , Trilling Damian , van Atteveldt Wouter
Published: November 2024

Political communication research centers the definition of news around institutions and norms tied to professional journalism. However, qualitative audience research increasingly shows that this approach does not match the reality of citizens anymore – news has become a much more fluid, fragmented concept than just what has been produced by journalists. Not accounting for these changes means that researchers are missing out on important sources of political information, potentially leading to biased estimates of exposure. This is especially true in the area of digital trace studies in which researchers are faced with an abundance of detailed data but so far mostly limited their analyses to lists of popular news outlets to research political information exposure. The aim of this paper is threefold: Conceptually, we propose to combine existing conceptualizations of news into a taxonomy of news. Methodologically, we apply this taxonomy to classify domains in digital trace data of Dutch users, showing its applicability to study changes in information environments on a larger, quantitative scale. Empirically, we show the extent to which a focus on general interest newsroom journalism leads to distortions and blind spots in news diversity research. Our results show that there is much to be found when zooming in on the long tail of news, outside of larger newsroom journalism sources. In particular for the study of news diversity and media effects, throwing away part of the data for research-practical purposes leads to missing the nuances that might just be of interest.
Introduction: Urban coexistence: Perspectives on Jews and Muslims in the social fabric of Europe
Authors: Menachem Zoufalá Marcela , Skorek Artur , Dyduch Joanna , Glöckner Olaf
Published: November 2024

Special Issue (SI) “Jewish and Muslim Communities in European Urban Spaces: A Comparative Approach” aims to examine and expound upon the discernible emergence of newly articulated relationships between Jews and Muslims within varied geographical and socio-cultural frameworks across Europe. In pursuit of a more profound comprehension of the current situation, alongside an exploration of nascent trends and prospective developments, this issue is committed to empirical research delving into the significance of the interwoven Jewish-Muslim experience and its impact on the multicultural environment of Europe.
Geographic interviews: A qualitative geographic information systems (QGIS) method for understanding person-in-environment
Authors: Littman Danielle M
Published: November 2024

Social work grounds itself in a person-in-environment (PIE) paradigm, often centering Ecological Systems Theory in early coursework. However, there are limited methods in social work research for operationalizing PIE. This paper introduces geographic interviews as a method for understanding the relationship between people and their environments. Geographic interviews, a participant-driven qualitative geographic information systems (QGIS) method, combine go-along/walking interviews with participant markings on visual-spatial representations (e.g., architectural floorplans, neighborhood maps) to represent individual and collective experiences of a specific space. This paper illustrates a case example of using geographic interviews to understand the recently housed young adults’ experiences of a permanent supportive housing (PSH) setting from data collection through dissemination. As a method-in-development, this paper ends with key questions which may future advancement of the geographic interview methodology. Specifically, future work should explore the use of physical movement, map types, and technology/materials as variables in implementing the geographic interview methodology to understand the relationship between people and their environments.
Statistical Analysis of the Effect of Viscose Air-jet Spun Yarn Process variables on the Tensile properties of Plied yarns based on Taguchi Method
Authors: Ghalebi Bahareh , Irannejad Fatemeh , Fathi Elahe , Shanbeh Mohsen
Published: November 2024

In this study, the effect of process parameters of 100% viscose air-jet spun yarns produced by Autoairo spinning machine on tensile properties of plied yarns were investigated. Spinning draft, delivery speed, and count of single yarn besides the twist of plied yarns were selected as process parameters. The count of plied yarn was Ne 7.5 which is one the most common yarns used as plied yarn in machine made carpet industry. The Taguchi L18 orthogonal array method was used to evaluate the effect of process parameters on physical and mechanical properties of plied yarns. The significance of independent variables on breaking strength and breaking elongation of plied yarns was evaluated statistically based on Taguchi and ANOVA method at 95% confidence level. Moreover, the Scanning Electron Microscopy (SEM) method was used to evalute the longitudinal cross section of yarns. Our findings confirmed the aforementioned parameters have different effect on tensile properties of single and plied yarns.
Green synthesis of ϒ-FE2O3 using orange peel extract and application to remove Congo red
Authors: Hoang Bich Ngoc , Nguyen Minh Luan , Hoang Minh Anh , Doan Que Minh Thi
Published: November 2024

Fe2O3 nanoparticles were synthesized by green chemistry using orange peel extract. The structural characteristics of Fe2O3 were tested through analysis methods such as scanning electron microscopy, Fourier Transform Infrared Spectroscopy, and X-ray diffraction. Fe2O3 nanoparticles have a heterogeneous spherical shape with the mass ratio of iron (55.66%) and oxygen (36.86%). Crystals of Fe2O3 nanoparticles were identified as γ-Fe2O3 with a hexagonal crystal structure and size 56.66 nm (nano size) with peaks 2θ = 30.25° (220), 35.68° (311), 43.34° (400), 53.39° (422), 57.36° (511), and 63.03° (440). The peaks at 636, 554, 480, and 422 cm–1 were believed to be the existence of a metallic oxygen (Fe-O) band. In addition, the OH and C=C groups were attributed to the presence of orange peel extract. The ability of γ-Fe2O3 nanoparticles to remove Congo red was selected under the following conditions: time 30 min, temperature 50 °C, pH 6, dosage 0.05 mmol L−1, and concentration at 400 mg L−1 with maximum adsorption capacity 1417.71785 mg g−1. The pseudo-first order and pseudo-second order were suitable for the adsorption process of the material with high correlation coefficients of 0.965 and 0.956, respectively. The adsorption process fits pseudo-first-order and pseudo-second-order kinetics and were mainly controlled by physical and chemical interactions. The Freundlich and Dubinin–Radushkevitch adsorption isothermal were mainly controlled by multilayer adsorption with heterogeneous electrostatic interaction force on the surface with Gaussian energy distribution. It can be seen that γ-Fe2O3 nanoparticles from green chemistry methods are potential materials to replace materials synthesized from conventional chemical methods.
A high-throughput tubular reactor for preparation of ultrafine barium sulfate
Authors: Liu Yue , Li Guo-en
Published: November 2024

Conventional barium sulfate is characterized by large particle size, crude manufacturing processes, and inferior quality. Conversely, ultrafine barium sulfate offers significant enhancements in product quality and broadens its range of applications. To achieve industrial-scale production of high-quality ultrafine barium sulfate, characterized by reduced particle size and narrow particle size distribution, a high-throughput tubular reactor was employed. Ultrafine barium sulfate with small particle size and narrow distribution can be effectively prepared without amplification effects using a high-throughput tubular reactor. This study investigates the influence of reactant concentration and feed flow velocity on particle size. The particle size of ultrafine barium sulfate exhibits a trend of decreasing and then increasing with the increase in reactant concentration. A minimum particle size of 28.17 nm can be achieved when the concentration of the reactant material is 1.2 mol L−1. The particle size decrease with an increase in the flow velocity of the reaction material. A minimum particle size of 28.17 nm for ultrafine barium sulfate can be achieved at a flow velocity of 10.42 m s−1. Furthermore, the product’s particle size and morphology were characterized utilizing a BET specific surface area analyzer and scanning electron microscope.
Single centre implementation of the Paediatric Anaesthesia Emergence Delirium scale
Authors: Hajdini Hasima , Otey Tamara , Guelbert Christopher , Sanofsky Benjamin
Published: November 2024

Purpose:

Early recognition of paediatric emergence delirium (ED) by post-anaesthesia care unit (PACU) nurses is critical for the effective management and prevention of complications. This project aimed to enhance nursing education and standardise the use of the Paediatric Anaesthesia Emergence Delirium (PAED) scale as a reliable tool for assessing ED.

Design:

This project involved an educational intervention for PACU nurses to train them in using the PAED scale for ED evaluation. The effectiveness of the PAED scale was compared with the more commonly used Face, Legs, Activity, Cry, Consolability (FLACC) scale in the evaluation of postoperative paediatric patients.

Methods:

An educational programme was designed for PACU nurses, with pre-and post-surveys administered to assess the impact of the educational intervention on their knowledge, confidence, and familiarity with ED and the PAED scale. This project included time trials comparing the use of the PAED and FLACC scales during patient simulations after the educational intervention.

Findings:

Following the educational programe, nurses demonstrated increased confidence and familiarity with ED and the PAED scale. Furthermore, the use of the PAED scale following the educational intervention significantly reduced the time required to evaluate patients and initiate treatment for ED compared with the FLACC scale.

Conclusion:

Equipping nurses with the knowledge and skills to effectively implement the PAED scale improves ED’s timely recognition and treatment, leading to safer, more efficient care for postoperative paediatric patients. This project demonstrates the importance of evidence-based tools and targeted nursing education.
Delayed FLAIR-enhancement of benign notochordal remnant (ecchordosis physaliphora)
Authors: Peels Jeroen , Vulsteke Christof , Boedts Michael , Marin Eline , De Cocker Laurens J. L.
Published: November 2024

Ecchordosis physaliphora (EP) is a benign notochordal remnant most commonly encountered in the skull base. In opposition to typical cases of its invasive counterpart, that is, chordoma, EP does not show T1-enhancement. Now, we describe three patients with EP, discovered on delayed contrast-enhanced 3D FLAIR performed for endolymphatic hydrops imaging in suspected Menière’s disease. All EP cases demonstrated intense, delayed FLAIR-enhancement of the notochordal remnant. The importance of this new observation of FLAIR-enhancement in EP is threefold: (1) it may increase the detection rate of EP, (2) FLAIR-enhancement in EP should not be mistaken for T1-enhancement in chordoma, and (3) it may open a new window for future imaging studies aiming to better differentiate EP from chordoma.
Does Student-to-School-Counselor Ratio Matter When Considering Schools’ Race/Ethnicity Composition? A New York Statewide Examination
Authors: Liu Yanhong , Hilts Derron , Guo Xiuyan
Published: November 2024

School counselors play a vital role in promoting students’ development in academic, career, and social/emotional domains. Professional organizations and educational partners have advocated for equitable access to school counselors and school counseling services by all students from pre-K through 12th grade. However, recent controversies have questioned effects of the student-to-school-counselor ratio and student outcomes. Using multiple databases retrieved from the New York State Education Department, we performed two separate two-way multivariate analyses of variance of the interaction effects of student-to-school-counselor ratio and schools’ race/ethnicity composition on student achievement on math and English language arts standardized tests, chronic absenteeism, and high school graduation and postsecondary 4-year college enrollment rates. Our analyses yielded significant interaction effects on students’ graduation and 4-year college enrollment rates and math test results. We discuss the contextualization of student-to-school-counselor ratio and implications for advocacy.
Visions of Maradona: A Liar, a Cheat, Un Cocaïnomane, Un Dealer. UK and France Regarding a Latin American Player
Authors: Greco Mauro I.
Published: November 2024

On November 25th, 2020, Argentine icon Diego Maradona died, and the international press and governments wrote their obituaries. Unlike what happened with the Argentine media press, where almost no critical voice was raised to remember the controversial sides of the iconic footballer, both British and French media—despite the well-intentioned decolonising agenda of the last seven decades—could not avoid a racial gaze to remember Maradona’s life and career. Focusing on some specific British ( The Guardian, The Daily Telegraph, and The Jacobin) and French ( Le monde, Le figaro, and Liberation) media, I will systematise and analyse their tropes and images to depict Maradona’s passing. Drawing on French philosopher Gilles Deleuze’s reading of Baruch Spinoza, on French sociologists Grignon et Passeron discussing their conational Pierre Bourdieu, and finally on Erving Gofmann’s category of ‘stigma’, I will concentrate on the ‘regret requests’, ‘miserabilism’ and tensions between ‘minstralisation’ and ‘normification’ findable in British and French media press coverage of Maradona’s death.
Bleeding and surgical time in knee arthroplasty using robotic assistance with and without the use of a tourniquet
Authors: Guerreiro JPF , Balan JVD , Vilhena MMH , Filho SGMV , Bignardi PR , Danieli MV
Published: November 2024

Objectives

To compare bleeding and surgical time in patients undergoing Total Knee Arthroplasty (TKA) with robotic assistance with and without the use of a tourniquet.

Methods

Retrospective study with analysis of medical records. Patients were divided into two groups: one group in which robotic-assisted TKA was performed using a tourniquet and the other without. Hemoglobin change and hematocrit at 24 hours after surgery, the volume of bleeding, number of transfusions and surgical time were compared.

Results

108 patients were included. The group using a tourniquet totaled 59 patients and the group without a tourniquet 49 patients. There was no difference between the mean hemoglobin and hematocrit values ​​between the groups, preoperatively (p = 0.287 and p = 0.508) and 24 hours (p = 0.252) after surgery. There was also no difference between the volume of bleeding in each group (p = 0.265). Surgical time was not different between groups (p = 0.179). There was no need for transfusions in any patient.

Conclusion

TKA surgeries with robotic assistance performed with and without the use of a tourniquet showed no significant difference in Hb change and Ht levels 24 hours after surgery, estimated bleeding volume, transfusions and surgical time.
Incidence of Meniscal Ramp Lesions in Anterior Cruciate Ligament Reconstructions players
Authors: Abreu FGA
Published: November 2024

Objectives

To evaluate the incidence and epidemiological aspects of meniscal ramp injuries in patients undergoing anterior cruciate ligament (ACL) reconstruction, and determine the related risk factors.

Methods

824 patients who underwent ACL reconstruction were retrospectively analyzed. Patients who presented medial meniscal instability underwent evaluation of the posteromedial compartment of the knee. In case of injury, surgical repair was performed. Potential risk factors associated with injuries were analyzed.

Results

The overall incidence of ramp injuries in the study was 10.6% (87 injuries in 824 patients). Multivariate analysis using the Chi-Square test demonstrated that the presence of meniscal ramp injuries was significantly associated with the following risk factors: right laterality and chronic injuries. Sex, age and sporting activity were not statistically significant. Football was the most frequent cause of sports-related ramp injuries, accounting for 78.2% of cases. However, it did not prove to be a risk factor. The annual incidence ranged from 4.0% to 20.6%.

Conclusion

The incidence of meniscal ramp lesions was 10.6% in ACL reconstruction, being more frequent in chronic injuries. The increasing annual incidence ranged from 4.0% in 2014 to 20.6% in 2019.
Keblish’s Lateral Surgical Approach Enhances Patellar Tilt In Valgus Knee Arthroplasty
Authors: Campos GC , Tonelli Filho JR , Passarelli MC , Piedade SR , Miranda JB , Zorzi AR
Published: November 2024

Objectives

To compare clinical and radiological outcomes of conventional medial and lateral approaches for total knee replacement in the valgus osteoarthritic knee.

Methods

In this randomized controlled trial, twenty-one patients with valgus knee osteoarthritis were randomized to either receive a total knee replacement through medial or lateral approach. Primary outcome was radiographic patellar tilt. Secondary outcomes were visual analogue scale of pain, postoperative levels of hemoglobin and clinical aspect of the operative wound.

Results

Groups were comparable. Mean lateral tilt of the patella was 3.1 degrees in lateral approach group (Standard Deviation ± 5.3) and 18 degrees in the medial approach group (Standard Deviation ± 10.2), with p=0.02. There were no differences within secondary outcomes.

Conclusion

Lateral approach provided better patellar tilt following total knee replacement in valgus osteoarthritic knee.
Posterolateral Corner Reconstruction: Modification of the LaPrade Technique Using Autologous Hamstring Tendon Grafts – “The Popliteofibular Loop"
Authors: Mestriner MB , Oliveira VM , Gugliemetti LGB , Aihara LJ , Severino NR , Cury RPL
Published: November 2024

Objectives

The purpose of this paper is to describe a modification of the LaPrade technique for PLC reconstruction using autologous hamstring tendon grafts.

Methods

The surgical technique is described to ensure reproducibility, with particular emphasis on the proposed modifications: the use of autologous grafts (gracilis and semitendinosus tendons); the configuration in which they are used to increase the thickness of the reconstructed structures; and the exclusive fixation with widely available interference screws.

Results

A modification of the LaPrade technique is describe in detail. In the case of a study describing a surgical technique, there are no results to show.

Conclusion

A modification of the LaPrade technique is describe in detail. In the case of a study describing a surgical technique, there is no conclusion to show.
Effects of Depressive Disorder on the Results of Total Knee Arthroplasty
Authors: Guerreiro JPF , Danieli JF , Bellini LZ , Bocatti T , Bignardi PR , Danieli MV
Published: November 2024

Objectives

Evaluation of the degree of satisfaction and functional outcome in the postoperative period was correlated with the incidence of depression in patients undergoing total knee arthroplasty.

Methods

Prospective study applying questionnaires to patients undergoing TKA before, 2, and 6 months after surgery.

Results

49 patients were included in the study. WOMAC and VAS values ​​were not different between patients diagnosed with depression or without a diagnosis in preoperative assessments. In the 6th postoperative month, the VAS value was 4.42 in the group with Depression and 2.33 in the group without Depression (p= 0.016). Regarding the WOMAC questionnaires, 2 months after surgery, the average for the Depression group was 34.4; and for patients without Depression, 35.2 (p= 0.887). After 6 months, 29.1 in the first group and 21.8 in patients without the Disorder (p= 0.182).

Conclusion

We observed less pain control in patients with Depression only 6 months after surgery. We found no significant differences regarding knee function after surgery between groups.
Evaluation of adductor canal blockage in postoperative analgesia and early functional results in arthroscopic reconstruction of the anterior cruciate ligament (ACL)
Authors: Milhomem PAM , Da Costa EL , Braga CLM , Ribeiro GG , De Souza TAC , De Araújo ID
Published: November 2024

Objectives

This study aimed to evaluate the effects of adductor canal block on postoperative analgesia and early functional outcomes in patients undergoing arthroscopic anterior cruciate ligament (ACL) reconstruction.

Methods

A prospective study design was used with a group of patients undergoing arthroscopic ACL reconstruction with adductor canal block and another control group without the block. Postoperative pain levels, the need for additional analgesics, knee function and range of motion were assessed.

Results

Patients undergoing adductor canal block had significantly lower levels of postoperative pain (mean of 2.3 ± 0.5 on the pain scale) compared to the control group (mean of 4.1 ± 0. 7 on the pain scale). Furthermore, the adductor block group had a lower need for additional analgesics in the first 24 hours after surgery. Regarding functional results, there was no significant difference in knee function or range of motion between the groups.

Conclusion

Adductor canal block has been shown to be effective in reducing postoperative pain in patients undergoing arthroscopic ACL reconstruction, reducing the need for additional analgesics in the first hours after surgery. However, there was no significant impact on early knee functional outcomes. This study provides moderate-level evidence on the usefulness of adductor block for postoperative analgesia in ACL surgery.