bluuebunny/crossref_metadata_2025_split huggingface dataset:
Prevalence of lower back pain and its associations with lifestyle behaviors among college students in Saudi Arabia
Authors: Alshehri Mohammed M , Alqhtani Amjad M , Gharawi Shahd H , Sharahily Raghad A , Fathi Wajd A , Alnamy Shahad G , Alothman Shaima A , Alshehri Yasir S. , Alhowimel Ahmed S. , Alqahtani Bader A. , Alenazi Aqeel M. 
Published: August 2023

Abstract
Background
Lower back pain (LBP) is a common musculoskeletal disorder that may affect students’ daily lives. Recent psychological research showed a relevant connection between LBP and multidimensional health. However, the association between LBP and lifestyle behavior has not been established, and improving knowledge in this area may help develop preventive strategies and optimize college students’ quality of life.

Methods
A cross-sectional study of 1420 college students in Saudi Arabia was conducted, and participants who attended Saudi Universities were recruited from May 2021 to November 2021. An established validated online survey assessed LBP, sleep quality, time spent sedentary (sedentary duration), health responsibility, physical activity, nutrition, spiritual growth, interpersonal relationships, and stress management. Generalized Linear Regression was used to assess the associations between LBP severity and lifestyle behaviors after controlling for covariates.

Results
LBP was prevalent among college students from Saudi Arabia. Most of the sample were young (23.81 ± 6.02), and female (83.7%). There were significant differences between students with and without LBP regarding age, BMI, sex, marital status, pain severity, overall lifestyle behavior, health responsibility, physical activity, nutrition, stress management, and global sleep quality. After controlling for age, BMI, sex, and marital status, there were significant associations between pain severity and global sleep quality (ß=0.2, p < .001, CI: 16 to 0.24), and sedentary duration (ß=0.03, p = .01, CI:0.009 to 0.06).

Conclusions
This study helped define the prevalence of LBP in college students in Saudi Arabia and evaluated the association between LBP and lifestyle behaviors. The findings showed that students with higher levels of poor sleep quality or sedentary behavior had higher levels of pain. Promoting sleep quality and reducing sedentary behavior may help establish preventive strategies for LBP in college students.
Folate deficiency may increase the risk for elevated TSH in patients with type 2 diabetes mellitus
Authors: Lin Lin , Du Yushan , Niu Guanyu , Xia Shuangbo , Liu Jufen 
Published: August 2023

Abstract
Background
Type 2 diabetes mellitus (T2DM) and thyroid dysfunction (TD) are two common chronic endocrine disorders that often coexist. Folate deficiency has been reported to be related with the onset and development of T2DM. However, the relationship between folate deficiency and TD remains unclear. This study aims to investigate the association of serum folate with TD in patients with T2DM.

Methods
The study used data on 268 inpatients with T2DM in the Beijing Chao-yang Hospital, Capital Medical University from October 2020 to February 2021. Thyroid stimulating hormone (TSH), free triiodothyronine (FT3), free thyroxine (FT4), and serum folate were measured with chemiluminescence immunoassay (CLIA), and folate deficiency was defined as a serum folate concentration < 4.4 ng/mL. Ordinary least squares regression models were used to assess the association of serum folate with TSH concentration. Multivariable logistic regression models were performed to explore the correlation of folate deficiency and the risk for elevated TSH.

Results
15.3% of T2DM patients had TD. Among those patients with TD, 80.5% had elevated TSH. Compared with the normal-TSH and low-TSH groups, the prevalence of folate deficiency was significantly higher in the elevated-TSH group (P < 0.001). Serum folate level was negatively associated with TSH (β=-0.062, 95%CI: -0.112, -0.012). Folate deficiency was associated with the higher risk for elevated TSH in patients with T2DM (OR = 8.562, 95%CI: 3.108, 23.588).

Conclusions
A low serum folate concentration was significantly associated with a higher risk for elevated TSH among T2DM patients.
Understanding competency of nursing students in the course of case-based learning in Cambodia: a convergent mixed method study
Authors: Koto-Shimada Kyoko , Carandang Rogie Royce , Shibanuma Akira , Kiriya Junko , Ong Ken Ing Cherng , Touch Sokneang , Koy Virya , Jimba Masamine 
Published: August 2023

Abstract
Background
In the last decade, nursing education has begun to reform to competency-based education worldwide, including in low-and middle-income countries. Case-Based Learning (CBL), an approach to delivering competency-based education, contributes to acquiring critical thinking competency, problem-solving, higher knowledge, professional value and attitude. However, it needs to be taught in a culturally appropriate manner. In Cambodia, CBL was initiated in a classroom and clinical practicum by faculty and preceptors who graduated from the upgrading course. This study examined the factors associated with the competency level of nursing students, explored the practice and perceptions of teaching–learning activities among students, faculty members and preceptors and assessed the coherence of qualitative and quantitative findings.

Methods
This was a convergent, mixed methods study. Data were collected from eight educational institutions for quantitative and qualitative studies and seven hospitals for qualitative studies. From June to September 2019, a cross-sectional survey of nursing students in the third year of the three-year programme (n = 719), eight focus group discussions (FGDs; n = 55) with 6–8 members and 15 FGDs with faculty (n = 38) and clinical preceptors (n = 37) with 4–7 members were conducted to elicit the teaching–learning experience and perceptions. Multiple linear regression was performed to investigate the factors associated with student competency. Moreover, the study conducted thematic content analysis on the qualitative data. The integrated analysis was presented as side-by-side joint displays.

Results
First, the quantitative and qualitative findings confirmed each other ’s CBL learning experiences. Students had higher levels of nursing competencies if they had CBL experiences, both in the classroom and clinical practicum, both in a group manner. Next, the quantitative and qualitative findings complemented students’ academic satisfaction with the teaching by faculty members and preceptors. Finally, the quantitative and qualitative findings were expanded to explain students’ academic satisfaction with the programme.

Conclusions
The finding of CBL experiences in a group and students’ satisfaction with faculty members’ and preceptors’ teaching improved nursing students’ competency development. Meanwhile, students’ satisfaction with the design and delivery of the educational programme provides implications for policy level to narrow the theory and practice gaps in low- and middle-income countries.
Training the healthcare workforce to support task-shifting and viral hepatitis elimination: a global review of English language online trainings and in-person workshops for management of hepatitis B and C infection
Authors: Corcorran Maria A. , Scott John D. , Naveira Marcelo , Easterbrook Philippa 
Published: August 2023

Abstract
Background
Achieving World Health Organization (WHO) targets for viral hepatitis elimination will require simplification and decentralisation of care, supported through task-shifting and training of non-specialist frontline healthcare workers. To inform development of national health worker trainings in viral hepatitis, we review and summarise available online and workshop trainings for management of hepatitis B virus (HBV) and hepatitis C virus (HCV).

Methods
We performed a systematic search of PubMed, Embase, Web of Science, conference abstracts, and grey literature using Google to identify online and in-person workshop trainings for health workers focused on HBV and/or HCV. Additional trainings were identified through a WHO regional network. We included online trainings written in English and in-person workshops developed for low-and-middle-income countries (LMICs). Available curricula are summarised together with key operational features (e.g. training length, year developed/updated, developing institution) and programmatic features (e.g. content, mechanism for self-assessment, use of clinical case studies).

Results
A total of 30 trainings met our inclusion criteria (10 online trainings; 20 in-person workshops). 50% covered both HBV and HCV, 13% HBV alone and 37% HCV alone. Among online trainings, only 2 (20%) were specifically developed or adapted for LMICs; 70% covered all aspects of hepatitis care, including prevention, assessment, and treatment; 9 (90%) included guidance on when to refer to specialists, and 6 (60%) included modules on management in specific populations (e.g., people who inject drugs [PWID], prisoners, and children). Online trainings used different formats including text-based modules, narrated slide-sets, and interactive web-based modules. Most workshops (95%) were targeted towards non-specialty providers, and 50% were an integral part of a national strategy for viral hepatitis elimination. Workshop length ranged from several hours to multiple sessions over the course of months, and many were part of a blended educational model, which included other opportunities for ongoing learning (e.g., telementorship).

Conclusion
This compendium of online and in-person workshop trainings for HBV and HCV is a useful resource for national hepatitis programmes developing training curricula for non-specialists. Additional online training curricula are needed for use in LMICs, and additional materials are needed to address management challenges in key populations, such as PWID.
Prediction of nonsentinel lymph node metastasis in breast cancer patients based on machine learning
Authors: Xiu Yuting , Jiang Cong , Zhang Shiyuan , Yu Xiao , Qiao Kun , Huang Yuanxi 
Published: August 2023

Abstract
Background
Develop the best machine learning (ML) model to predict nonsentinel lymph node metastases (NSLNM) in breast cancer patients.

Methods
From June 2016 to August 2022, 1005 breast cancer patients were included in this retrospective study. Univariate and multivariate analyses were performed using logistic regression. Six ML models were introduced, and their performance was compared.

Results
NSLNM occurred in 338 (33.6%) of 1005 patients. The best ML model was XGBoost, whose average area under the curve (AUC) based on 10-fold cross-verification was 0.722. It performed better than the nomogram, which was based on logistic regression (AUC: 0.764 vs. 0.706).

Conclusions
The ML model XGBoost can well predict NSLNM in breast cancer patients.
Radiation dose is associated with improved local control for large, but not small, hepatocellular carcinomas
Authors: Amit Uri , Mohiuddin Jahan J , Wojcieszynski Andrzej P , Harton Joanna , Williams Graeme , Manjunath Shwetha , Grandhi Nikhil , Doucette Abigail , Plastaras John P , Metz James M , Ben-Josef Edgar 
Published: August 2023

Abstract
Background
With advances in understanding liver tolerance, conformal techniques, image guidance, and motion management, dose-escalated radiotherapy has become a potential treatment for inoperable hepatocellular carcinoma (HCC). We aimed to evaluate the possible impact of biologically effective dose (BED) on local control and toxicity among patients with HCC.

Methods and materials
Patients treated at our institution from 2009 to 2018 were included in this retrospective analysis if they received definitive-intent radiotherapy with a nominal BED of at least 60 Gy. Patients were stratified into small and large tumors using a cutoff of 5 cm, based on our clinical practice. Toxicity was assessed using ALBI scores and rates of clinical liver function deterioration.

Results
One hundred and twenty-eight patients were included, with a mean follow-up of 16 months. The majority of patients (90.5%) had a good performance status (ECOG 0–1), with Child-Pugh A (66.4%) and ALBI Grade 2 liver function at baseline (55.4%). Twenty (15.6%) patients had a local recurrence in the irradiated field during the follow-up period. Univariate and multivariate Cox proportional hazard analyses showed that only BED significantly predicted local tumor recurrence. Higher BED was associated with improved local control in tumors with equivalent diameters over 5 cm but not in smaller tumors. There was no difference in liver toxicity between the low and high-dose groups.

Conclusions
Higher radiotherapy dose is associated with improved local control in large tumors but not in tumors smaller than 5 cm in diameter. High-dose radiotherapy was not associated with increased liver toxicity.
In primary total hip arthroplasty, the direct anterior approach leads to higher levels of creatine kinase and lower levels of C-reactive protein compared to the posterolateral approach: a propensity score matching analysis of short-term follow-up data
Authors: De Berardinis Luca , Senarighi Marco , Farinelli Luca , Qordja Fjorela , Gallo Alberto , Spezia Marco , Gigante Antonio Pompilio 
Published: August 2023

Abstract
Background
This retrospective study compares the invasiveness of the direct anterior approach (DAA) and the posterolateral approach (PLA) in total hip arthroplasty (THA) by assessing three widely used inflammation-related serum markers in the first ten post-operative days.

Methods
The database of our institution was mined for primary THAs conducted by the DAA or the PLA from February 2020 to June 2022. Demographics and creatine kinase (CK), C-reactive protein (CRP), and white blood cells were compared. Propensity Score Matching (PSM) analysis (1:1 ratio) was conducted based on multiple variables.

Results
PSM analysis yielded 44 pairs of DAA and PLA patients. CK was significantly higher (p < 0.001) in the DAA than in the PLA group on postoperative day (POD) 2, 5 and 10. The POD2, POD5 and POD10 CK/preoperative CK ratio was 12.9, 5.0 and 0.8 in DAA and 8.8, 3.3 and 0.6 in PLA (p = 0.017, p = 0.012 and p = 0.025, respectively). The POD2, POD5 and POD10 CRP/preoperative CRP ratio was 95.1, 65.6 and 22.8 in PLA and 34.7, 23.3 and 8.9 in DAA (p < 0.001, p = 0.002 and p < 0.001, respectively).

Conclusion
PSM analysis of early postoperative CK and CRP values demonstrated that the DAA should be considered as a less stressful approach, not as a muscle-sparing or a minimally invasive THA approach.
Nota da Editora
Authors: Cardoso Squeff Tatiana 
Published: August 2023

Apresenta a edição n. 1 do vol. 51 da Revista da Faculdade de Direito da Universidade Federal de Uberlândia, que é integralmente composto por textos que abordam a teoria crítica, sobretudo, desde um olhar descolonial. Na primeira das seis partes que compõem este número, publicam-se 36 artigos divididos nas seções ‘estrangeiros’ (02), ‘convidados’ (01) e ‘artigos em geral’ (33). Já nas demais seções desta edição, há uma análise de jurisprudência e o texto integral de uma submissão de amicus curiae feita à Corte Interamericana de Direitos Humanos, além dos resumos do II Simpósio Internacional de Direito Internacional Crítico, realizado com apoio da Revista da FADIR da UFU, em junho de 2023. Ao todo, são 80 autores que assinam os textos desse número, contando com representantes de todas as regiões brasileiras (são 17 estados representados: AM, BA, CE, DF, ES, MA, MG, MT, PA, PE, PI, PR, RJ, RS, SP, SC e SE), além de autores vinculados a instituições da Colômbia, do Chile e de Portugal.
Tropical Poincaré duality spaces
Authors: Aksnes Edvard 
Published: August 2023

Abstract
The tropical fundamental class of a rational balanced polyhedral fan induces cap products between tropical cohomology and tropical Borel–Moore homology. When all these cap products are isomorphisms, the fan is said to be a tropical Poincaré duality space. If all the stars of faces also are such spaces, such as for fans of matroids, the fan is called a local tropical Poincaré duality space.
In this article, we first give some necessary conditions for fans to be tropical Poincaré duality spaces and a classification in dimension one. Next, we prove that tropical Poincaré duality for the stars of all faces of dimension greater than zero and a vanishing condition implies tropical Poincaré duality of the fan. This leads to necessary and sufficient conditions for a fan to be a local tropical Poincaré duality space. Finally, we use such fans to show that certain abstract balanced polyhedral spaces satisfy tropical Poincaré duality.
The association between hemogram parameters and the development of contrast-induced nephropathy in patients presenting with non-ST-elevation myocardial infarction
Authors: Dönmez Esra , Özcan Sevgi , Şahin İrfan , Okuyan Ertuğrul 
Published: August 2023

Abstract

Objectives
Hemogram parameters such as mean platelet volume (MPV), neutrophil/lymphocyte ratio (NLr), red cell distribution width and platelet distribution width are widely used inflammatory indicators to assess prognosis in various cardiovascular diseases. In this study, we aimed to investigate the role of hemogram parameters to predict the development of contrast-induced nephropathy (CIN) in patients presenting with non-ST segment elevation myocardial infarction (non-STEMI) and treated with percutaneous coronary intervention (PCI).

Methods
All pateints who underwent PCI with a diagnosis of non-STEMI between 2017 and 2020 in our center were included retrospectively in this study.

Results
A total of 387 patients were included in this retrospective study. Advanced age (p=0.001, β:0.005, OR [95 % CI]: 0.002–0.007), diabetes mellitus (p=0.013, β:0.205, OR [95 % CI]: 0.150–0.260), congestive heart failure (p=0.009, β:0.095, OR [95 % CI]: 0.024–0.166), volume of contrast medium (p=0.008, β:0.241, OR [95 % CI]: 0.184–0.392), MPV (p=0.02, β:0.047, OR [95 % CI]: 0.028–0.065) and NLr (p=0.001, β:0.052, OR [95 % CI]: 0.040–0.063) were found as independent risk factors associated with CIN development according to multivariate logistic regression analysis. A cut off value of 5.5 for NLr was associated with 79.6 % sensitivity and 79.5 % specificity and 9.05 for MPV was associated with 64.1 % sensitivity and 58.7 % specificity in prediction of CIN development.

Conclusions
Hematological parameters, assessed by routine blood count analysis may serve as a promising and useful marker for CIN especially when used in combination with traditional risk factors. MPV and NLr were demonstrated as predictors of CIN development in non-STEMI patients who were treated with PCI in our study.
Ground states of Schrödinger systems with the Chern-Simons gauge fields
Authors: Jiang Yahui , Chen Taiyong , Zhang Jianjun , Squassina Marco , Almousa Nouf 
Published: August 2023

Abstract
We are concerned with the following coupled nonlinear Schrödinger system:

−
Δ
u
+
u
+

∫

∣
x
∣

∞

h

(

s

)

s

u

2

(

s

)

d
s
+

h

2

(

∣
x
∣

)

∣
x
∣

2

u
=

∣
u
∣

2
p
−
2

u
+
b

∣
v
∣

p

∣
u
∣

p
−
2

u
,

x
∈

R

2

,

−
Δ
v
+
ω
v
+

∫

∣
x
∣

∞

g

(

s

)

s

v

2

(

s

)

d
s
+

g

2

(

∣
x
∣

)

∣
x
∣

2

v
=

∣
v
∣

2
p
−
2

v
+
b

∣
u
∣

p

∣
v
∣

p
−
2

v
,

x
∈

R

2

,

\left\{\begin{array}{l}-\Delta u+u+\left(\underset{| x| }{\overset{\infty }{\displaystyle \int }}\frac{h\left(s)}{s}{u}^{2}\left(s){\rm{d}}s+\frac{{h}^{2}\left(| x| )}{{| x| }^{2}}\right)u={| u| }^{2p-2}u+b{| v| }^{p}{| u| }^{p-2}u,\hspace{1em}x\in {{\mathbb{R}}}^{2},\hspace{1.0em}\\ -\Delta v+\omega v+\left(\underset{| x| }{\overset{\infty }{\displaystyle \int }}\frac{g\left(s)}{s}{v}^{2}\left(s){\rm{d}}s+\frac{{g}^{2}\left(| x| )}{{| x| }^{2}}\right)v={| v| }^{2p-2}v+b{| u| }^{p}{| v| }^{p-2}v,\hspace{1em}x\in {{\mathbb{R}}}^{2},\hspace{1.0em}\end{array}\right.

where

ω
,
b
>
0

\omega ,b\gt 0

,

p
>
1

p\gt 1

. By virtue of the variational approach, we show the existence of nontrivial ground-state solutions depending on the parameters involved. Precisely, the aforementioned system admits a positive ground-state solution if

p
>
3

p\gt 3

and

b
>
0

b\gt 0

large enough or if

p
∈

(

2
,
3

]

p\in \left(2,3]

and

b
>
0

b\gt 0

small.
Analysis of tool wear and surface roughness in machining of AISI 4462 duplex stainless steel
Authors: Sönmez Fikret 
Published: August 2023

Abstract
Machining is one of the most precise manufacturing methods used in the manufacturing of machine parts. In machining, significant tool wear is observed due to cutting tool-to-workpiece contact. Controlling tool wear and minimizing the effect of tool wear in this method is an important research topic. In this study, machinability tests were carried out on AISI 4462 duplex stainless steel materials, which are in the hard-to-cut material class. In the experiments, the changes in tool life and surface roughness were analyzed by using 150, 180, and 210 m/min cutting speeds; 0.1 mm feed; and 0.8 mm depth of cut. Increasing cutting speed significantly increased wear and reduced tool life. However, experiments with cutting speeds of 180 m/min and 210 m/min had the same tool life values. In addition, significant notch wear and BUE formation were observed on the tool surface. Besides, it was determined that the surface roughness deteriorated due to tool wear. In addition, surface deterioration due to chip wrapping was also observed in many passes.
The Effectiveness of Problem-Based Learning in Acquisition of Knowledge Using Online Learning
Authors: Rawash Hassan , Alawamreh Ali Ratib , Obeidat Abdallah Mishael , Nawafleh Ahmad h 
Published: August 2023

The adoption and use of creative teaching techniques, such as problem-based learning using online learning have relied upon improvement in order to improve educational outcomes. Regardless of the fact that problem-based learning is facilitated by online learning and has many clear advantages, it is still developing or at a very early level in many developing countries. Problem-based learning is a student-centered method where students study a subject by using online learning to collaborate in groups to solve an open-ended challenge. The research design was a cross-sectional field survey, was used in quantitative research approaches using PLS analysis. Additionally, the study's target population is all the class teacher students at private Universities. The author reviews the study on the investigation of influencing factors for problem-based learning strategy with online learning in Jordan to improve the education system as well. The findings demonstrated a positive influence between key factors and intention to use and this result enhance acquisition of Knowledge using online learning for Class Teacher students.