bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of Chronological Age, Relative Age, and Maturation Status on Accumulated Training Load and Perceived Exertion in Young Sub-Elite Football Players
Authors: Teixeira José Eduardo , Alves Ana Ruivo , Ferraz Ricardo , Forte Pedro , Leal Miguel , Ribeiro Joana , Silva António J. , Barbosa Tiago M. , Monteiro António M. 
Published: March 2022

The aims of this study were 1) to analyze the influence of chronological age, relative age, and biological maturation on accumulated training load and perceived exertion in young sub-elite football players and 2) to understand the interaction effects amongst age grouping, maturation status, and birth quartiles on accumulated training load and perceived exertion in this target population. A 6-week period (18 training sessions and 324 observation cases) concerning 60 young male sub-elite football players grouped into relative age (Q1 to Q4), age group (U15, U17, and U19), and maturation status (Pre-peak height velocity (PHV), Mid-PHV, and Post-PHV) was established. External training load data were collected using 18 Hz global positioning system technology (GPS), heart-rate measures by a 1 Hz short-range telemetry system, and perceived exertion with total quality recovery (TQR) and rating of perceived exertion (RPE). U17 players and U15 players were 2.35 (95% CI: 1.25–4.51) and 1.60 (95% CI: 0.19–4.33) times more likely to pertain to Q1 and Q3, respectively. A negative magnitude for odds ratio was found in all four quartile comparisons within maturation status (95% CI: 6.72–0.64), except for Mid-PHV on Q2 (95% CI: 0.19–4.33). Between- and within-subject analysis reported significant differences in all variables on age group comparison measures (F = 0.439 to 26.636, p = 0.000 to 0.019, η2 = 0.003–0.037), except for dynamic stress load (DSL). Between-subject analysis on maturity status comparison demonstrated significant differences for all training load measures (F = 6.593 to 14.424, p = 0.000 to 0.037, η2 = 0.020–0.092). Interaction effects were found for age group x maturity band x relative age (Λ Pillai’s = 0.391, Λ Wilk’s = 0.609, F = 11.385, p = 0.000, η2 = 0.391) and maturity band x relative age (Λ Pillai’s = 0.252, Λ Wilk’s = 0.769, F = 0.955, p = 0.004, η2 = 0.112). Current research has confirmed the effects of chronological age, relative age, and biological maturation on accumulated training load. Perceived exertion does not seem to show any differences concerning age group or maturity status. Evidence should be helpful for professionals to optimize the training process and young football players’ performance.
Authentic Leadership, Trust (in the Leader), and Flourishing: Does Precariousness Matter?
Authors: Kleynhans Deon J. , Heyns Marita M. , Stander Marius W. , de Beer Leon T. 
Published: April 2022

OrientationThis study employed a second stage moderated mediation analysis to investigate the influence of authentic leadership on employee flourishing via trust in the leader (mediating variable) and job overload (moderating variable).Research PurposeTo explore the relationship between authentic leadership and flourishing by considering the indirect effect of trust in the leader as potentially moderated by job overload.Motivation for the StudyAn authentic leadership style, trust in the leader, and job overload may impact employee flourishing. A deeper understanding of the potential interaction effect of trust in the leader and job overload in the relationship between authentic leadership and flourishing may improve individual and organizational productivity.Research Approach/Design and MethodThis study used a quantitative, cross-sectional survey design and PROCESS for moderated mediation. The sample consisted of 314 employees in a prominent steel manufacturing organization in South Africa. The Authentic Leadership Inventory, Workplace Trust Survey (WTS), Flourishing-at-Work Scale, and the Job Demands-Resources Scale were utilized.Main FindingsThe study found that authentic leadership was a significant predictor of flourishing through trust in the leader. Job overload did not moderate the relationship between trust in the leader and employee flourishing.Practical/Managerial ImplicationsThis study emphasizes the potential role of authentic leadership in fostering a trustful relationship between employees and their leaders. It might result in the increased flourishing of employees. The non-significant influence of job overload on trusting relationships in precarious work contexts was also illuminated.Contribution/Value-AddThrough the analysis of these relations, organizations may be favorably equipped to optimize the resources required to improve performance. Moreover, the investigation into trust in the leader combined with job overload increases our understanding of supporting and promoting employee flourishing at work.
Mindfulness as a Protective Factor Against Depression, Anxiety and Psychological Distress During the COVID-19 Pandemic: Emotion Regulation and Insomnia Symptoms as Mediators
Authors: Mamede André , Merkelbach Inge , Noordzij Gera , Denktas Semiha 
Published: April 2022

ObjectivesResearch has linked mindfulness to improved mental health, yet the mechanisms underlying this relationship are not well understood. This study explored the mediating role of emotion regulation strategies and sleep in the relationship between mindfulness and symptoms of depression, anxiety and psychological distress during the COVID-19 pandemic.MethodsAs detailed in this study’s pre-registration (osf.io/k9qtw), a cross-sectional research design was used to investigate the impact of mindfulness on mental health and the mediating role of emotion regulation strategies (i.e., cognitive reappraisal, rumination and suppression) and insomnia. A total of 493 participants from the general population answered an online survey and were included in the final analysis. The online survey consisted of the short form of the Five-Facets Mindfulness Questionnaire (FFMQ-SF), the Impact of Event Scale-revised (IES-R), the Generalised Anxiety Disorder Scale (GAD-7), the Patient Health Questionnaire (PHQ-8), the Emotion Regulation Questionnaire (ERQ), the short form of the Rumination Response Scale (RSS-SF), and the Insomnia Severity Index (ISI).ResultsStructural equation modelling revealed that mindfulness was related to lower symptoms of depression, anxiety and psychological distress, both directly and indirectly. Mindfulness was negatively associated with rumination and insomnia. As hypothesised, models revealed that the associations between mindfulness and depression, anxiety and psychological distress were significantly mediated by its negative associations with rumination and insomnia. Our findings also demonstrated that rumination was related to increased insomnia symptoms, which in turn was associated with increased mental health problems, indicating a mediated mediation. Mindfulness was also positively associated with cognitive reappraisal and negatively associated with suppression, which were, respectively, negatively and positively associated with depressive symptoms, and thus functioned as specific mediators of the association between mindfulness and depression.ConclusionOur findings suggest that rumination and insomnia operate transdiagnostically as interrelated mediators of the effects of mindfulness on mental health, whereas cognitive reappraisal and suppression function as specific mediators for depression. These insights emphasise the importance of targeting emotion regulation and sleep in mindfulness interventions for improving mental health. Limitations and implications for practice are discussed.
Medical Cannabis and Past-Year Cannabis Use Disorder Among Adult Recreational Users in the United States: Results From a Nationally Representative Sample
Authors: Rubin-Kahana Dafna Sara , Hassan Ahmed Nabeel , Sanches Marcos , Le Foll Bernard 
Published: April 2022

IntroductionWith the increasing number of cannabis users and more jurisdictions allowing medical cannabis, more evidence-based knowledge about the prevalence of cannabis use disorder (CUD) among medical users is greatly needed.ObjectivesTo examine and compare the prevalence and severity of CUD and the prevalence of different CUD criteria among two groups: those who combine recreational and medical use vs. those who exclusively use cannabis recreationally. To examine the association between CUD and sociodemographic characteristics, medical conditions, and psychiatric comorbidities between these two groups.MethodsThe National Epidemiological Survey on Alcohol and Related Conditions III data were used, a US nationally representative in-person interview of 36,309 adults aged ≥18 years collected in 2012–2013. The statistical examination included proportion comparison hypothesis testing and linear regressions, all using complex survey design analysis procedures.ResultsRecreational users who used cannabis also for medical purposes had a higher prevalence of CUD in general, as well as mild and moderate CUD than users who used cannabis only for recreational purposes. CUD is more prevalent in recreational, medical users with the following characteristics: young, male, non-white, living in the Midwest, using a greater amount of cannabis, having a concurrent mental disorder, and had CUD before the past year.ConclusionRecreational, medical cannabis users have a higher likelihood of having CUD. Although the results should be taken with caution, given the lack of established validity of CUD among medical users, health care professionals who prescribe or recommend the use of cannabis for medical purposes should take this into consideration while evaluating the risks/benefits ratio of cannabis. They need to assess patients' recreational cannabis use, screen for CUD, and educate users about the possible complications caused by cannabis use.
Water Access and Adherence Intention Among HIV-Positive Pregnant Women and New Mothers Receiving Antiretroviral Therapy in Zambia
Authors: Nutor Jerry John , Marquez Shannon , Slaughter-Acey Jaime C. , Hoffmann Thomas J. , DiMaria-Ghalili Rose Ann , Momplaisir Florence , Opong Emmanuel , Jemmott Loretta Sweet 
Published: April 2022

BackgroundMother-to-infant transmission of HIV is a major problem in Sub-Saharan Africa despite free or subsidized antiretroviral treatment (ART), but is significantly reduced when mothers adhere to ART. Because potable water access is limited in low-resource countries, we investigated water access and ART adherence intention among HIV-positive pregnant women and new mothers in Zambia.MethodsOur convenience sample consisted of 150 pregnant or postpartum women receiving ART. Descriptive statistics compared type of water access by low and high levels of ART adherence intention.ResultsMost (71%) had access to piped water, but 36% of the low-adherence intention group obtained water from a well, borehole, lake or stream, compared to only 22% of the high-adherence intention group. The low-adherence intention group was more rural (62%) than urban (38%) women but not statistically significant [unadjusted Prevalence Ratio (PR) 0.73, 95% CI: 0.52–1.02; adjusted PR 1.06, 95% CI: 0.78–1.45].ConclusionProviding potable water may improve ART adherence. Assessing available water sources in both rural and urban locations is critical when educating women initiating ART.
Impact of Wide Local Excision on Melanoma Patient Survival: A Population-Based Study
Authors: Buja Alessandra , Rugge Massimo , Damiani Giovanni , De Luca Giuseppe , Zorzi Manuel , Fusinato Riccardo , De Toni Chiara , Vecchiato Antonella , Del Fiore Paolo , Falasco Francesca , Spina Romina , Rossi Carlo Riccardo , Mocellin Simone 
Published: March 2022

IntroductionPromoting standardization and quality assurance (QA) in oncology on the strength of real-world data is essential to ensure better patient outcomes. Wide excision after primary tumor biopsy is a fundamental step in the therapeutic pathway for cutaneous malignant melanoma (CMM). The aim of this population-based cohort study is to assess adherence to wide local excision in a cohort of patients diagnosed with CMM and the impact of this recommended procedure on overall and disease-specific survival.Materials and MethodsThis retrospective cohort study concerns CMM patients diagnosed in the Veneto region (north-east Italy) in 2017, included in the high-resolution Veneto Cancer Registry, and followed up through linkage with the regional mortality registry up until February 29th, 2020. Using population-level real-world data, linking patient-level cancer registry data with administrative records of clinical procedures may shed light on the real-world treatment of CMM patients in accordance with current guidelines. After excluding TNM stage IV patients, a Cox regression analysis was performed to test whether the completion of a wide local excision was associated with a difference in melanoma-specific and overall survival, after adjusting for other covariates.ResultsNo wide excision after the initial biopsy was performed in 9.7% of cases in our cohort of 1,305 patients. After adjusting for other clinical prognostic characteristics, Cox regression revealed that failure to perform a wide local excision raised the hazard ratio of death in terms of overall survival (HR = 4.80, 95% CI: 2.05–11.22, p &lt; 0.001) and melanoma-specific survival (HR = 2.84, 95% CI: 1.04–7.76, p = 0.042).ConclusionBy combining clinical and administrative data, this study on real-world clinical practice showed that almost one in ten CMM patients did not undergo wide local excision surgery. Monitoring how diagnostic-therapeutic protocols are actually implemented in the real world may contribute significantly to promoting quality improvements in the management of oncological patients.
Social Norms and Preventive Behaviors in Japan and Germany During the COVID-19 Pandemic
Authors: Schmidt-Petri Christoph , Schröder Carsten , Okubo Toshihiro , Graeber Daniel , Rieger Thomas 
Published: April 2022

BackgroundAccording to a recent paper by Gelfand et al., COVID-19 infection and case mortality rates are closely connected to the strength of social norms: “Tighter” cultures that abide by strict social norms are more successful in combating the pandemic than “looser” cultures that are more permissive. However, countries with similar levels of cultural tightness exhibit big differences in mortality rates. We are investigating potential explanations for this fact. Using data from Germany and Japan—two “tight” countries with very different infection and mortality rates—we examined how differences in socio-demographic and other determinants explain differences in individual preventive attitudes and behaviors.MethodsWe compared preventive attitudes and behaviors in 2020 based on real-time representative survey data and used logit regression models to study how individual attitudes and behaviors are shaped by four sets of covariates: individual socio-demographics, health, personality, and regional-level controls. Employing Blinder-Oaxaca regression techniques, we quantified the extent to which differences in averages of the covariates between Japan and Germany explain the differences in the observed preventive attitudes and behaviors.ResultsIn Germany and Japan, similar proportions of the population supported mandatory vaccination, avoided travel, and avoided people with symptoms of a cold. In Germany, however, a significantly higher proportion washed their hands frequently and avoided crowds, physical contact, public transport, peak-hour shopping, and contact with the elderly. In Japan, a significantly higher proportion were willing to be vaccinated. We also show that attitudes and behaviors varied significantly more with covariates in Germany than in Japan. Differences in averages of the covariates contribute little to explaining the observed differences in preventive attitudes and behaviors between the two countries.ConclusionConsistent with tightness-looseness theory, the populations of Japan and Germany responded similarly to the pandemic. The observed differences in infection and fatality rates therefore cannot be explained by differences in behavior. The major difference in attitudes is the willingness to be vaccinated, which was much higher in Japan. Furthermore, the Japanese population behaved more uniformly across social groups than the German population. This difference in the degree of homogeneity has important implications for the effectiveness of policy measures during the pandemic.
Patients' Willingness of First Visit in Primary Medical Institutions and Policy Implications: A National Cross-Sectional Survey in China
Authors: Li Jin , Zhao Ning , Zhang Haiyan , Yang Hui , Yang Jia 
Published: April 2022

BackgroundThe Chinese hierarchical treatment system expects patients to first visit primary medical institutions (PMIs), and patients' willingness determined their utilization of primary health care. The aim of this study was to explore the factors associated with patients' willingness to make their first visit to PMIs.MethodsWe employed multistage stratified sampling and convenience sampling to administer questionnaires to 1,507 patients in Beijing, Qinghai, and Fujian. Patients' willingness of first visit in PMIs was analyzed using Chi-square test and binary logistic regression.ResultsOf the 1,507 participants in the survey, 55.1% were willing to make their first visit in PMIs. Fewer patients in Beijing (17.6%) are willing to make their first visit in PMIs than those in Qinghai (71.9%) and Fujian provinces (72.0%). Binary logistic regression analysis revealed that higher recognition of the community first visit policy and higher satisfaction with the medical technology of PMIs are associated with patients' willingness of first visit in PMIs.ConclusionsDue to differences in local economic conditions, medical resources, and policy formulation, there are differences among provinces in patients' willingness of first visit in PMIs. To increase patients' rate of visits in PMIs, it is important to improve service capacity and quality of PMIs and change residents' attitudes for PMIs.
Subserous Cystic Adenomyosis: A Case Report and Review of the Literature
Authors: Xu Tongtong , Li Yue , Jiang Lili , Liu Qifang , Liu Kuiran 
Published: March 2022

IntroductionCystic adenomyosis is a rare type of adenomyosis that often occurs in adolescents or women of childbearing age. Due to the few reports of this case, its clinical characteristics have not been clearly established.Case PresentationWe treated a 32-year-old married patient with cystic adenomyosis that reported persistent abdominal pain and massive vaginal bleeding, so an emergency laparotomy was performed. The intraoperative findings and post-operative pathology proved that the diagnosis was correct. The prognosis of the patient is good, and there is no recurrence within 3 months after surgery.ResultsSurgery is the most effective way to treat cystic adenomyosis. Ultrasound and magnetic resonance are the most effective auxiliary examinations for diagnosing the disease.ConclusionCystic adenomyosis is a sporadic disease. This article summarizes this condition's clinical manifestations, pathological features, diagnosis, treatment, and prognosis by reviewing the existing literature and the case presented in this report. It is noteworthy that early diagnosis and individualized treatment strategies can improve patients' quality of life.
Challenge in Diagnosis and Treatment of Ectopic Hepatocellular Carcinoma: A Case Report and Literature Review
Authors: Liu Qicen , Li Jingyi , Pan Yi , Zheng Xiang , Gao Bin 
Published: March 2022

BackgroundFindings of ectopic hepatocellular carcinoma (EHCC) have been rarely documented. Complicated clinical features and unpredictable medical prognosis make diagnosis and treatment difficult.Case PresentationWe reported a 59-year-old male patient who came to the hospital with epigastric discomfort and regurgitation of gastric acid. An enhanced CT scan revealed a 1.8 cm × 1.4 cm mass in the tail of pancreas without any positive finding in the liver. Postoperative MRI scan was performed but did not reveal any evidence of hepatic tumor. The tumor was resected in toto. Meanwhile, a 1 cm × 1 cm mass in the body of the stomach was found that was removed simultaneously. Histopathology showed that the pancreatic tumor was ectopic hepatocellular carcinoma (EHCC), and that the gastric nodule was gastrointestinal stromal tumor (GIST). The patient had an uneventful postoperative recovery. He has been living without recurrence for over 7 years since surgery. Owing to our knowledge, this is the second-longest disease-free survival time for EHCC in the literature.ConclusionHere, we present a rare case of EHCC in the pancreas, and review the current literature on EHCC. Operation was an effective treatment for patients with curable EHCC. EHCC with metastasis still needs more practice to improve the poor prognosis.
Preoperative Three-Dimensional Lung Simulation Before Thoracoscopic Anatomical Segmentectomy for Lung Cancer: A Systematic Review and Meta-Analysis
Authors: Xiang Zhongtian , Wu Bo , Zhang Xiang , Feng Nan , Wei Yiping , Xu Jianjun , Zhang Wenxiong 
Published: March 2022

BackgroundWhether the utilization of preoperative three-dimensional (3D) lung simulation can improve the outcomes of segmentectomy for lung cancer (LC) is still controversial. Our meta-analysis was performed to compare preoperative 3D lung simulation with non-3D procedures in terms of perioperative outcomes.MethodsSeven databases (Embase, Ovid Medline, ScienceDirect, PubMed, Web of Science, Cochrane Library, and Scopus) were searched for eligible articles. Intraoperative outcomes (conversion, operative time, etc.), postoperative indicators (postoperative hospital stay, total number of complications, etc.) and postoperative complications were endpoints.ResultsAfter applying predefined inclusion criteria, we included 8 studies and 989 patients (3D group: 552 patients; non-3D group: 437 patients) in our meta-analysis. The results of the meta-analysis showed that preoperative 3D lung simulation could significantly decrease the blood loss (mean difference [MD]: −16.21 [−24.95 to −7.47]ml, p = 0.0003), operative time (MD: −13.03 [−25.56 to −0.50]ml, p = 0.04), conversion rate (conversion from segmentectomy to thoracotomy or lobectomy) (MD: 0.12 [0.03–0.48], p = 0.003), postoperative hospital stay (MD: −0.25 [−0.46 to 0.04]days, p = 0.02) and total number of complications (MD: 0.59 [0.43–0.82], p = 0.001) compared with non-3D procedures. The number of resected lymph nodes (LNs), postoperative drainage time, postoperative forced expiratory volume in the first second (postoperative FEV1) and postoperative drainage volume were similar in the two groups. Arrhythmia (5.30%), pulmonary air leakage (2.72%), atrial fibrillation (2.20%), pulmonary infection (2.04%), and pneumonia (1.73%) were the top 5 postoperative complications in the 3D group.ConclusionsPreoperative 3D lung simulation was better than non-3D procedures in segmentectomy for LC, with better intraoperative and postoperative outcomes. However, our results should be confirmed in larger prospective randomized controlled trials.Systematic Review RegistrationPROSPERO, identifier: CRD42021275020.