bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on Transmission Characteristics and Torsional Vibration Control of Hybrid Transmission Wind Turbines
Authors: Dai Fuquan , Lin Yonggang , Gu Yajing , Liu Hongwei , Cheng Xiqing , Chen Wenting , Sun Yong 
Published: March 2024

Abstract
As wind turbines become larger and move into deeper sea, their operating environment is getting more and more harsh, which puts higher stability requirements of the transmission chain. The mechanical-hydraulic hybrid transmission (MHHT) combines mechanical and hydraulic systems to improve transmission stability. However, the related research is still in the stage of mechanism verification. In this paper, a 19-degree-of-freedom pure torsion model has been established to study the internal characteristics of the MHHT chain. The model contains parallel gearing, planetary gearing and closed hydraulic transmission simultaneously. The correctness of the modelling method was verified by a software model. The frequency characteristics of the hybrid transmission chain were summarized. The first two modes at different motor displacements were classified as "mechanical mode" and "hydraulic mode" based on the mode shapes. A hydraulic damping model was built based on the leakage of the hydraulic system. The influence of the hydraulic system on the MHHT damping characteristics has been discussed in detail with and without considering the mechanical damping. Finally, a damping compensation method by adjusting the hydraulic motor displacement was proposed. The control algorithm was derived by a simplified model and verified by the 19-degree-of-freedom pure torsion model. The simulation results under different working conditions show that this method can effectively reduce the first-mode torsional vibration and improve the life of the drivetrain.
Empowering women economically is more important than personal and socio-cultural empowerment. Analysis of 2022 Kenya Demographic and Health Survey
Authors: Nabimanya Boaz , Mayanja Edison , Kyarikunda Miria , Nkamusiima Dianah , Kagarura Willy Rwamparagi , Kiwuwa-Muyingo Sylvia , Kadengye Damazo T. 
Published: March 2024

Abstract
Background
Empowering women economically may boost household income, economic growth, the adoption of healthcare services, and the elimination of poverty. This means that when women are economically empowered, they are also personally and socio- culturally empowered. Studies have revealed that women economic empowerment is still low, particularly in developing countries like Kenya. This paper explores the determinants of women empowerment among married women in Kenya. Understanding women’s empowerment is necessary to overcoming poverty, achieving economic development and gender equality.
Methods
We analyzed secondary data from the 2022 Kenya Demographic and Health Survey. For the final analysis, we used a weighted sample of 18,312 currently married women. All frequencies and percentages in the results section are weighted. At the multivariate stage of analysis, the effect of explanatory variables on women empowerment was investigated using multilevel mixed effects logistic regression model. We computed adjusted Odds Ratio (AOR) with 95% confidence interval (95% CI). Variables with a P-value of less than 0.05 in the multi variable binary logistic regression analysis were considered statistically significant predictors of the outcome variable.
Results
Out of all women who are economically empowered, 80% are empowered in all the three dimensions of empowerment. Out of 18, 312 women, 61% are both personally and social-culturally empowered, 20% are social-culturally and economically empowered, while 19% are personally and economically empowered. This indicates that economic empowerment plays an important role in the formation of personal and social-cultural empowerment.
Conclusions
Generally, women empowerment in our study was low (17.7%). It is highly affected by socio demographic and economic characteristics of women and husbands’ characteristics. This study indicates that educating women, improving their economic status through employment opportunities, empowering women to be head of household will enhance their economic empowerment.
Estimating the State-of-Charge of a Battery Powered by a Weakly Nonlinear Energy Harvester
Authors: Daqaq Mohammed 
Published: March 2024

Abstract
Departing from the traditional approach which focuses on estimating and maximizing the power dissipated in a resistive load, this work presents an approximate analytical treatment for the estimation of the state-of-charge (SoC) of a battery powered by a weakly nonlinear mono-stable energy harvester under different base excitations. In particular, the paper considers excitations that can be approximated using a harmonic function, white, or band-limited noise and provides approximate expressions to estimate the battery's state-of-charge; a quantity that is often neglected in the performance analysis of nonlinear energy harvesters. The approximate analytical solutions, which strike a balance between simplicity and accuracy, are compared to numerical results generated using the Simscape Matlab's toolbox illustrating very good agreement.
Deep Eutectic Solvents Extraction of Polyphenol from the stem of Broccoli :Optimization, Components , and Antioxidant Activity
Authors: wang bingqing , chen peiyun , zhang huien , chen Liqing 
Published: March 2024

Abstract
The stem of broccoli has been reported to contain high levels of polyphenols and other active compounds.To extract polyphenol from broccoli stem more efficiently, a novel procedure of deep eutectic solvent extraction (DESE) was proposed in this paper.The extraction process was optimised by response surface methodology. The optimum extraction parameters to obtain the highest yield of polyphenol 5.10 ± 0.04 mg/g from broccoli stem powder via choline chloride-urea (molar ratio 1:3) were obtained at liquid-solid ratio of 41:1 mL/g, water content of 60%, extraction temperature of 80°C and extraction time of 55 min. The components of the main polyphenol were identified by high-performance liquid chromatography-electrospray ionisation-mass spectrometry (HPLC-ESI-MS/MS).Compositional analysis shows that the extracted polyphenols are rich, including quercetin, isochlorogenic acid, trans-cinnamic acid and sinapinic acid. Furthermore, in vitro tests proved that the extracted polyphenols obtained in (ChCl-urea) DES possessed excellent antioxidant activity.These results provided an effective and feasible method for the extraction and separation of polyphenols in broccoli stalks, providing some technical support and theoretical basis for the green extraction of broccoli waste stalks.
The impact of body mass index on the progression free survival of CDK 4/6 inhibitors in metastatic breast cancer patients
Authors: Çağlayan Dilek , Koçak Mehmet Zahid , Geredeli Çağlayan , Atcı Muhammed Mustafa , Tatlı Ali Murat , Göksu Sema Sezgin , Eryılmaz Melek Karakurt , Araz Murat , Artaç Mehmet 
Published: March 2024

Abstract
Purpose
Endocrine therapy (ET) plus cyclin-dependent kinase (CDK) 4/6 inhibitors is a standard therapy for patients with hormone receptor (HR)-positive HER-2-negative metastatic breast cancer (MBC). We aimed to investigate the effect of body mass index (BMI) on the progression-free survival (PFS) in hormone receptor (HR)-positive MBC patients who received ET plus CDK4/6 inhibitor in second- and later-line therapy.
Methods
Patients with metastatic HR-positive breast cancer receiving CDK 4/6 inhibitors from three institutions were enrolled in the study. A total of 116 patients admitted between January 2019 and December 2021 were retrospectively evaluated. The patients were divided into three groups according to BMI level as follows: normal weight (group 1) as 18.5–24.9 kg/m2, overweight (group 2) as 25-29.9 kg/m2, and obese (group 3): ≥ 30 kg/m2. Median duration of follow-up was 10.83 months. Comparisons of PFS and BMI categories were performed with Kaplan-Meier curve and log-rank test.
Results
The PFS was 9.3 (5.3–13.4) month in normal-weight patients, 11.1 (9.7-12.56) month in obese patients, and could not be reached in overweight patients. This difference was statistically significant (p = 0.02). The best response to CDK 4/6 inhibitor treatment in all BMI groups was partial response (group 1: 48.3%, group 2: 69%, and group 3: 46.7%; p = 0.06). Cardiac, hematological and gastrointestinal side effects were similar in all BMI groups (p > 0.05).
Conclusion
It was shown that while a normal weight had a negative prognostic effect on survival in patients with metastatic breast cancer, the progression-free survival of overweight patients was found to be longer.
Psychotherapy Preferences for Individuals with Inflammatory Bowel Disease and Clinically Significant Fatigue: A Large Cross-Sectional Survey
Authors: Maunick Bernadette , Skvarc David , Naude Colette , Emerson Catherine , Mikocka-Walus Antonina 
Published: March 2024

Abstract

Background
There is limited research on psychotherapeutic intervention preferences for individuals with IBD experiencing fatigue. The current study aimed to examine psychotherapy preferences, comparing ACT, CBT, and MBI, for individuals with IBD experiencing clinically significant fatigue. Predictors of psychotherapy preference, including participant demographic or health-related variables, were also examined.
Methods
An online cross-sectional survey was administered. Frequencies were provided for preferences between ACT vs MBI, and separately for ACT vs CBT. Binomial logistic regressions were used to determine which participant demographic or health-related variables, were predictors of psychotherapy preference.
Results
The final sample consisted of 660 individuals with IBD experiencing clinically significant fatigue. Over two thirds of the sample preferred ACT (68.5%) over MBI (31.5%). Similarly, over two thirds of the sample preferred ACT (68.8%) over CBT (31.2%). Participants who scored higher on the DASS-21 depression subscale were more likely to choose ACT over MBI (OR 1.06, 95% CI [1.01, 1.11], p = 0.02). Conversely, participants who scored higher on the DASS-21 anxiety subscale were less likely to choose ACT over MBI (OR 0.93, 95% CI [0.87,0.99], p = 0.01). There were no significant predictors for preference of ACT over CBT.
Conclusions
Participants psychotherapy preferences, and their predictors, should be considered in designing future trials for IBD.
Impact of Motivation on Student’s Academics Performance: a Case Study of Metharath University (Mru) Students
Authors: Khan Maya , Ewe Lim Chong 
Published: March 2024

Abstract
This research investigates the pivotal relationship between the impact of motivation and the academic performance of Metharath University students within the concept of sustainable education. The objectives are to examine the relationship between motivation and performance and to examine the impact that motivation has on student grades. The quantitative research design involved a cross-sectional survey administered to a stratified random sample of bachelor-degree students across the three faculties at the Pathum Thani campus, Thailand. The data were analyzed using correlation analysis and simple linear regression methods. The Academic Motivation Scale (AMS) was used to measure motivation, while current academic records were used as objective indicators of performance. The findings revealed a robust positive correlation (r = 0.733) and a significant positive relationship in the regression analysis (B = 0.733, p < 0.00), affirming our hypothesis that heightened student motivation can enhance student academic performance. Based on the findings above, a positive relationship exists between motivation and performance, which provides educators, policymakers, and students with empirical evidence supporting improved learning outcomes. Despite these limitations, such as the study’s cross-sectional nature, the insights derived from the study offer a valuable foundation for future research, targeted interventions, and informed decision-making strategies using motivation as a crucial factor in shaping the academic success of university students.
Privacy-Preserving Byzantine-Resilient Swarm Learning for E-healthcare
Authors: Zhu Xudong , Lai Teng 
Published: March 2024

Abstract

Automatic medical diagnosis service based on deep learning has been entered in e-healthcare, bringing great convenience to human life. However, due to privacy regulations, insufficient data sharing among medical centers has led to many severe challenges for automated medical diagnostic services including diagnostic accuracy. To solve the problems, swarm learning, a blockchain-based Federated learning (BCFL), has been proposed. Although avoiding single point of failure attacks and offering incentive mechanism, SL still faces privacy breaches and poisoning attacks. In the paper, we propose a new privacy-preserving byzantine-resilient swarm learning (PBSL) that is resistant to poisoning attacks while protecting data privacy. Specifically, we adopt threshold holomorphic encryption to protect data privacy and provide secure aggregation. And the cosine similarity is used to judge the malicious gradient uploaded by malicious medical centers. Through security analysis, PBSL is able to defend against a variety of known security attacks. Finally, PBSL is implemented by uniting deep learning with the blockchain-based smart contract platform.Experiments based on different datasets show that PBSL algorithm is feasible and efficient.
Deficiency of SPP1 alleviates hyperoxia-induced bronchopulmonary dysplasia in neonatal mice
Authors: Liu Juan , Bao Tianping , Zhou Yajuan , Ma Mengmeng , Tian Zhaofang 
Published: March 2024

Abstract
Bronchopulmonary dysplasia (BPD) is a common chronic lung disorder characterized by impaired proximal airway and bronchoalveolar development in premature births. SPP1 is involved in lung development and lung injury events, while its role was not explored in BPD. In the current study, the hyperoxiainduced lung injury animal models were generated by exposing neonatal mice to hyperoxia for 7 days after birth, and alveolar myofibroblasts (AMYFs) were treated with hyperoxia to establish the in vitro models of BPD. Based on the scRNA-seq analysis of lungs of mice housed under normoxia or hyperoxia conditions, mouse macrophages and fibroblasts were main different cell clusters between the two groups, and differentially expressed genes in fibroblasts were screened. Further GO and KEGG enrichment analysis revealed that these differentially expressed genes were mainly enriched in the pathways related to cell proliferation, apoptosis as well as the PI3K-AKT and ERK/MAPK pathways. SPP1 was found up-regulated in the lung tissues of hyperoxia mice. We also demonstrated the up-regulation of SPP1 in the BPD patients as well as hyperoxiainduced lung injury mouse models and cells. SPP1 deficiency was revealed to reduce the hyperoxia-induced apoptosis, oxidative stress and inflammation and increase the viability of AMYFs. In the hyperoxiainduced lung injury mouse models, SPP1 deficiency was demonstrated to reverse the hyperoxia-induced alveolar growth disruption, oxidative stress and inflammation. Overall, SPP1 exacerbates BPD progression in vitro and in vivo by regulating oxidative stress and inflammatory response via the PI3K-AKT and ERK/MAPK pathways, which might provide novel therapeutic target for BPD therapy.
Effect of intraoperative dexmedetomidine on early postoperative quality of recovery in patients undergoing endoscopic transsphenoidal surgery for non-functioning pituitary adenoma: a randomized controlled trial
Authors: Choi Seungeun , Lim Han Byeol , Shin Kyong Won , Oh Hyongmin , Kim Yong Hwy , Kim Jung Hee , Park Hee-Pyoung 
Published: March 2024

Abstract
Purpose
Intraoperative dexmedetomidine administration attenuates surgical stress response and reduces postoperative pain, which are both essential for enhancing postoperative quality of recovery (QoR). This study aimed to determine whether intraoperative dexmedetomidine could improve early postoperative QoR in patients with nonfunctioning pituitary adenoma (NFPA) undergoing endoscopic transsphenoidal surgery (ETS).
Methods
Patients with NFPA who underwent ETS under total intravenous anesthesia using continuous infusion of propofol and remifentanil were randomly assigned to receive either intraoperative dexmedetomidine (dexmedetomidine group, n = 29) or normal saline (control group, n = 32). The QoR-15 questionnaire was used to evaluate the postoperative QoR. The primary outcome measure was the QoR-15 score on postoperative day 1. Perioperative serum cortisol levels, intraoperative serum interleukin-6 levels, and pain scores at 4, 24, and 48 h postoperatively were also evaluated.
Results
The QoR-15 score on postoperative day 1 did not differ between the dexmedetomidine and control groups (94.0 [79.0–112.0] vs. 92.5 [68.3–110.8], P = 0.606). Perioperative serum cortisol levels showed no significant time × group effect (P = 0.578). Intraoperative serum interleukin-6 level did not differ between the two groups (P = 0.974). Pain score was lower in the dexmedetomidine group at 4 h postoperatively (0.0 [0.0–0.0] vs. 1.0 [0.0–3.0], P = 0.003) than the control group.
Conclusion
Dexmedetomidine, as an anesthetic adjuvant, did not improve early postoperative QoR in patients with NFPA during ETS.
Anxiety symptoms and sleep disturbance among Afghan female school students: A survey study
Authors: Neyazi Ahmad , Rahimi Bilal Ahmad , Mohammadi Abdul Qadim , Razaqi Nosaibah , Afzali Habibah , Neyazi Mehrab , Griffiths Mark D. 
Published: March 2024

Abstract
Background: Anxiety is one of the most common psychological disorders among school-aged children and adolescents. The main objectives of the present study were to determine the prevalence of anxiety symptoms and sleep disturbance and their association with academic performance among female school students in Herat, Afghanistan.
Methods: A cross-sectional survey study was carried out among 737 female students (mean age 11.8 years) in Grades 1 to 6 of public schools in Herat. The Depression Anxiety Stress Scale for Youth (DASS-Y) and Pittsburgh Sleep Quality Index (PSQI) were to assess anxiety and sleep disturbance. Academic achievement ratings were provided by the participants’ schoolteachers
Results: Based on the DASS-Y and PSQI, 65.5% reported anxiety symptoms while 46.4% reported sleep disturbance. Low academic performance (class grading) had statistically significant correlation with presence of anxiety (r = 0.228) and sleep disturbance or poor-quality sleep (r = 0.161). Multiple logistic regression analysis was run to see which variables predicted anxiety and sleep disturbance. The significant predictors of anxiety symptoms were being aged 13–16 years, having a lower-class performance or grade, having low economic status, and having unemployed parents. The significant predictors of sleep disturbance were being aged 13–16 years, having a lower-class grade, having an uneducated father, having low economic status, and having unemployed parents.
Conclusion: There is a high prevalence of anxiety symptoms and sleep disturbance among female school students in Herat, Afghanistan. Both are associated with poorer school performance. Anxiety and sleep disturbance among Afghan female school students could be improved by changing current government policies and lifting the ban on female education in Afghanistan, campaigns on sleep education, and courses in time management.
The impact of urban stream burial on DOM cycling: new insights from a mesocosm experiment
Authors: Croghan Danny , Khamis Kieran , Bradley Chris , Sadler Jon P. , Loon Anne Van , Ledger Mark E. , Singh Tanu , Hannh David M. 
Published: March 2024

Abstract
Urban landscapes can drastically alter light regimes through stream burial, and also modify water temperature patterns, both of which have profound implications for the degradation of dissolved organic matter (DOM) through photodegradation and biodegradation, respectively. Despite their likely significance, the dynamics of short-term biodegradation and photodegradation in urban environments remain poorly understood, with limited knowledge regarding the potential interplay between warming and stream burial effects. This study used a replicated flume experiment to investigate the effects of shading, warming (+ 4.5–6.6°C), and their interaction on DOM processing. We used optical techniques to characterize DOM quantity and composition, allowing us to assess photodegradation and biodegradation rates in urban stream analogues. Linear mixed effects models revealed that the degradation of the fluorescent DOM pool decreased under shaded conditions, accompanied by an increase in humic-like compounds. Additionally, shaded flumes exhibited a shift towards higher molecular weight organic matter, indicating the importance of photodegradation in DOM processing within urban rivers. Temperature effects on DOM processing rates were found to be relatively minor compared to shading, with no interaction with shading observed. Principal Component Analysis demonstrated clear distinctions between shaded and unshaded treatments. In contrast, no significant differences were observed between warmed and ambient temperature treatments. Our findings suggest that stream burial impedes DOM processing and alters DOM composition in urban headwaters by inhibiting the photodegradation of humic material. The temperature treatments examined had limited impacts on biodegradation over the relatively short timescales of this study. This study provides experimental support for daylighting interventions as a strategy to enhance DOM processing in urban streams and mitigate the flux of labile material to downstream ecosystems.
Mathematical analysis of a 1D-3D coupled problem in cardiac electrophysiology
Authors: Kordoghli Khouloud , Aouadi Saloua Mani , Zemzemi Nejib 
Published: March 2024

Abstract

The objective of this paper is to analyze a coupled problem that describes the propagation of the electric wave in the heart. The problem comprises coupled partial differential equations posed on a three-dimensional domain representing the heart and on a one-dimensional tree representing the Purkinje network. Each system of PDEs is itself coupled to ordinary differential equations that describe the electrical activity at the cellular level. We establish the existence of a unique solution, utilizing a fixed-point approach with a judicious and non-conventional choice of functional spaces and contraction.
2010 Mathematics Subject Classification. Primary 35Q92, Secondary: 35R30.
Some difficulties in using Abraham--Poincare's form of electromagnetic momentum for stationary systems.
Authors: Onoochin Vladimir 
Published: March 2024

Abstract
In this work, an analysis of the procedure for deriving the well known expression for an electromagnetic momentum is made. It is shown that Abraham--Poincar\'e's form of the electromagnetic momentum does not ensure the conservation of total momentum for stationary systems, such as elementary charges in vacuum.
The examples provided in this analysis illustrate the violations of this law that occur when calculating electromagnetic momentum using the Abraham-Poincare form
Compare Neural Network and Linear Regression when there exist outliers or sensitive data; Advantage and Disadvantages
Authors: Zare Mohammad 
Published: March 2024

Abstract
This paper examines a particular type of neural network architecture characterized by having just one hidden layer. Our motivation stems from the fact that this configuration offers both flexibility and strength in approximating continuous functions. Specifically, we shall contrast its performance against that of linear regression when dealing with the presence of outliers or influence data. To gain further insights into this model's merits and limitations, we delve deeper into analyzing its advantages and disadvantages.