bluuebunny/crossref_metadata_2025_split huggingface dataset:
Latent classes of eating disorders and addictions by sex: Implication of alexithymia and stressful life events in youths
Authors: Macía Laura , Momeñe López Janire , Macía Patricia , Herrero Marta , Jauregui Paula , Iruarrizaga Iciar , Estévez Ana 
Published: February 2023

IntroductionEating disorders (EDs) and behavioural addictions show common psychological vulnerability factors such as alexithymia and stressful life events (SLE). This study aims, firstly, to explore the prevalence and latent profiles of participants based on their risk of suffering EDs, gambling disorder (GD), alcohol and/or drug abuse, and compulsive buying (CB) by sex. Secondly, it aimed to test whether alexithymia and having experienced SLE are associated with group membership.MethodsThe sample was predominantly drawn from university students and social networks. It was composed of 352 young adults between 18 and 35 years old, of whom 77.8% were women and 22.2% men.ResultsThe results showed that the most prevalent disorders of the sample were alcohol, EDs, CB, drugs and GD, respectively. Moreover, latent class analyses were conducted based on the risk of suffering EDs or addictions by sex. Three main profiles were found: ‘Men with addictions’, ‘Healthy women’ and ‘Women with EDs’. Finally, differences in SLE and alexithymia levels were tested by latent classes. “Men with addictions” and “Women with EDs” had higher scores on alexithymia and SLE than the group of “Healthy women”. However, the group of “Women with EDs” (class 3) reported significantly higher levels of SLE and alexithymia than the other two groups.Discussion and conclusionIn conclusion, we discuss the possibility that some vulnerability factors operate generally and transdiagnostically in EDs and addictive disorders. The identification of clinical phenotypes could complement and deepen prediction, prevention and treatment research in clinical settings. The need to take sex and gender differences into account is reinforced.
There is no rush to upgrade the tennis racket in young intermediate competitive players: The effects of scaling racket on serve biomechanics and performance
Authors: Touzard Pierre , Lecomte Chloé , Bideau Benoit , Kulpa Richard , Fourel Loïc , Fadier Maxime , Cantin Nicolas , Martin Caroline 
Published: February 2023

IntroductionScaling the equipment of young athletes is justified by the constraints-led approach introduced in motor learning. The aim of the present study is to analyze the effect of racket scaling on the serve biomechanics and performance parameters for young tennis players (between 8 and 11 years-old).MethodsNine young intermediate competitive tennis players (age: 9.9 ± 1.0 years) performed maximal effort flat serves with three different rackets (scaled 23 inches, scaled 25 inches and full-size 27 inches) in a randomized order. A radar measured ball speed while shoulder and elbow kinetics and upper and lower limb kinematics were calculated with a 20-camera optical motion capture system. Repeated measures ANOVAs were used to analyze the effect of the three rackets on ball speed, percentage of serve in, serve kinematics and kinetics.ResultsNo significant differences in ball speed, maximal racket head velocity and percentage of serve in were observed between the three rackets. The lowest maximal upper limb kinetics and the highest upper limb maximal angular velocities were obtained with the scaled 23 inches racket.DiscussionUsing scaled rackets has the advantage to decrease shoulder and elbow loadings without reducing serve performance. Consequently, the present results incite tennis coaches and parents to not upgrade too soon the size of the racket in young intermediate tennis players to avoid overuse injury risks in the long term. Our results showed that the full-size 27 inches racket induced higher lower limb kinematics. As a consequence, occasionally serving with a fullsize racket can be a sparingly interesting intervention to help young tennis players to intuitively and immediately increase their leg drive action, allowing a more functional representation of the elite junior serve.
Development of a theoretical construct for teacher expertise in the Chinese context and identification of its components: A mixed-methods study
Authors: Cai Yonghong , Li Yanli , Tang Runjia 
Published: February 2023

IntroductionTeacher expertise is a vital element of teaching quality. Examining what constitutes teacher expertise has important implications for the theoretical development and practical application of teacher expertise. The present study was conducted to develop a theoretical construct for teacher expertise in the Chinese context, identify its components, and verify the validity of this construct.MethodsThis study adopted an exploratory sequential mixed-methods design. To develop a construct for teacher expertise and identify its components, critical incident interviews were conducted with 102 primary and secondary school teachers. Grounded theory analysis was applied to code 621 stories from critical incident interviews. To verify the construct validity and discriminant validity, a survey of 1,041 teachers was conducted in 21 primary schools and 20 secondary schools in Hebei and Shanxi provinces. Confirmative factor analysis, Kruskal-Wallis test, and Mann-Whitney test were used to evaluate the validity of the construct.ResultsKnowledge structure, teaching ability, and professional development agency constituted the construct for teacher expertise. This construct had good construct validity and discriminant validity. Knowledge structure could not identify expertise. Teaching ability and professional development agency could differentiate between expert and non-expert teachers.DiscussionTeacher expertise is a complex, multidimensional, and adaptive construct. The construct can be used as a valid and reliable instrument to identify and develop teacher expertise. Moreover, this study expands on prior studies and complements recent theoretical models describing teacher expertise.
Effect of developmental stress on the in vivo neuronal circuits related to excitation–inhibition balance and mood in adulthood
Authors: Oh Se Jong , Lee Namhun , Nam Kyung Rok , Kang Kyung Jun , Lee Kyo Chul , Lee Yong Jin , Seok Jeong-Ho , Choi Jae Yong 
Published: February 2023

IntroductionTraumatic events in early life have a deleterious effect on the development of normal brain developments, which may be a cause of various psychiatric disorders in adulthood. Most prior studies focused on molecular biological aspects, and research on functional changes in neural circuits is still limited. We aimed to elucidate the effect of early life stress on in vivo excitation–inhibition and serotonergic neurotransmission in the adulthood using non-invasive functional molecular imaging (positron emission tomography, PET).MethodsTo compare the effect of stress intensity, early life stress animal models were divided into single trauma (MS) and double trauma groups (MRS). MS was derived from maternal separation, whereas MRS was derived from maternal separation and restraint stress after birth. And to evaluate the stress vulnerability on the sex, we used male and female rats.ResultsThe MRS group showed greater weight loss and more severe depressive/anxiety-like behaviors than the MS and control groups. Corticosterone levels in MRS showed a greater extent of decline than in the MS group; however, there was no significant difference in the change of T3 and T4 between MS and MRS. In the PET, the stress exposure groups showed lower brain uptake for GABAergic, glutamatergic, and serotonergic systems compared with the control group. The excitatory/inhibitory balance, which was derived by dividing glutamate brain uptake into GABAergic uptake, increased as stress intensity increased. Neuronal degeneration in the stress exposure groups was confirmed by immunohistochemistry. In the sex comparison, female showed the greater changes of body weight, corticosterone level, depressive/anxiety-like behavior, and neurotransmission systems than those in male.ConclusionTaken together, we demonstrated that developmental stress induces dysfunction of neurotransmission in vivo, and that females are more vulnerable to stress than males.
Long-term care insurance and multidimensional poverty of middle-aged and elderly: Evidence from China
Authors: Li Wenxiu , Ke Jin , Sun Fei 
Published: February 2023

IntroductionThis paper examined the impact of public long-term care insurance (LTCI) pilots in China on the multidimensional poverty status of middle-aged and older adults.MethodsUsing panel data from the China Health and Retirement Longitudinal Survey, we utilized LTCI pilots conducted in different cities from 2012 to 2018 and assessed the impact of LTCI using a difference-in-differences strategy.ResultsWe found that the implementation of LTCI reduces the multidimensional poverty of middle-aged and older adults and their likelihood of future multidimensional poverty. LTCI coverage was also associated with a reduction in the likelihood that middle-aged and older adults in need of care fall into income poverty, living consumption poverty, health poverty, and social participation poverty.DiscussionFrom a policy perspective, the findings of this paper suggest that the establishment of an LTCI system can improve the poverty of middle-aged and older adults in several ways, which has important implications for the development of LTCI systems in China and other developing countries.
A study on the content of integrity policies and research integrity management in Chinese universities
Authors: Cao Yuan , Jiang Yuwei , Zhao Yong 
Published: February 2023

BackgroundThis study outlines a comprehensive analysis of the primary characteristics of managing research integrity (RI) in domestic colleges and universities in China. RI education in China consists primarily of soft advocacy, with no hard requirements or continuous and systematic support. Together with other stakeholders, such as funders and publishers, higher education institutions (e.g., colleges and universities) are one of the vital actors that have a lot of influence on RI promotion and implementation among researchers. However, the literature on the regulation of RI policies in China's universities is limited.MethodsWe investigate the top 50 colleges and universities in the 2021 Best Chinese Universities Ranking. Their guidance and policy documents on RI were collected via their official websites. By integrating the use of scientometrics analysis, including descriptive statistical analysis, inductive content analysis, and quantitative analysis, we examine whether and how these higher education institutions respond to national policies in a timely manner, especially in terms of their frequency of updates, topic clustering analysis, terms clustering analysis, content aggregation. To further understand the composition mechanism and the main working systems of university RI management organizations, we conducted in-depth research on the organizational functions, meeting system, staff composition mechanism, and scientific research misconduct acceptance and investigation mechanisms.ResultsThe regulations on the treatment of RI in China's universities have, in response to the government's call to establish their own management policies and working mechanisms, maintained a zero-tolerance stance on research misconduct. The sampled universities listed the definition and principles of misconduct practices, investigation procedures, and sanctions of research misconduct in their own policy documents. Some of them listed inappropriate research practices All 50 sampled universities have formed relevant organizations responsible for RI management, they all provide the detailed regulations of the committees. Yet, there is still a need to further define Questionable Research Practice, foster higher standards for integrity in research and, establish and improve an efficient, authoritative, well-restrained and supervision working mechanism for organizations responsible for RI treatment.
Faktor-Faktor yang memengaruhi Kepatuhan Wajib Pajak dalam Membayar Pajak Kendaraan Bermotor di Jakarta Barat
Authors: Cellynia Dhea , Marlinah Aan 
Published: February 2023

This study aims to determine the effect of awareness of taxpayer, tax sanctions, service quality, tax knowledge, and compliance costs towards taxpayer compliance. The methodology used in this research is primary quantitative with sampling technique using the convenience sampling method. The number of samples used in this study were 102 respondents with sample research criteria, namely taxpayers who were registered in the West Jakarta area, made their own payments, had made payments to the SAMSAT Office in the West Jakarta area, and had received tax services by tax officials. The results of data analysis show that tax sanctions and tax knowledge has a positive effect on taxpayer compliance and awareness of taxpayer, service quality, tax socialization, and compliance costs have no effect on taxpayer compliance.
HUBUNGAN KOORDINASI MATA-TANGAN, POWER LENGAN DAN PANJANG LENGAN TERHADAP KEMAMPUAN SERVIS PADA ATLET JUNIOR DIBAWAH USIA 18 TAHUN CLUB DI SUKOHARJO
Authors: Balfasa Safrina Audia , Azkiya M Azkal , Putri Mega Widya 
Published: February 2023

Tujuan penelitian ini adalah untuk 1. Mengetahui apakah ada hubungan antara koordinasi mata tangan terhadap kemampuan servis pada atlet junior dibawah usia 18 tahun club di Sukoharjo, 2. Mengetahui apakah ada hubungan antara power lengan terhadap hasil kemampuan servis pada atlet junior dibawah usia 18 tahun club di Sukoharjo, 3. Mengetahui apakah ada hubungan antara panjang lengan terhadap hasil kemampuan servis pada atlet junior dibawah usia 18 tahun club di Sukoharjo. 4. Koordinasi mata tangan, power lengan dan panjang lengan terhadap hasil kemampuan servis pada atlet junior dibawah usia 18 tahun club di Sukoharjo. Penelitian ini menggunakan metode deskriptif dengan studi korelasi. Sampel dari penelitian ini adalah atlet junior dibawah usia 18 tahun club di Sukoharjo yang berjumlah 15 orang. Teknik pengambilan sampel menggunakan purposive sampling yaitu pengambilan sampel berdasarkan tujuan dan pertimbangan tertentu. Data hasil servis diperoleh dari tes dan pengukuran dari Hewitt kemudian dianalisis menggunakan komputer program SPSS Versi 17.0. Hasil penelitian menunjukkan bahwa ada hubungan antara koordinasi mata tangan terhadap kemampuan servis sebesar 0.561 dan memberikan sumbangan relatif sebesar 19.83 % dan sumbangan efektif sebesar 14,87 %. Ada hubungan antara power lengan terhadap hasil kemampuan servis sebesar 0.765 dan memberikan sumbangan relatif sebesar 39,68 % dan sumbangan efektif sebesar 29,76 %. Ada hubungan antara panjang lengan terhadap hasil kemampuan servis sebesar 0.645 dan memberikan sumbangan relatif sebesar 25.93 % dan sumbangan efektif sebesar 19.45 %. Ada hubungan antara Koordinasi mata tangan, power lengan dan panjang lengan terhadap hasil kemampuan servis sebesar 0.812 dan memberikan sumbangan efektif sebesar 81,20 %. Besarnya nilai F antara koordinasi mata tangan, power lengan, dan panjang lengan terhadap kemampuan servis tenis lapangan Y adalah 15.804. Simpulan dari penelitian ini adalah : 1. Ada hubungan antara koordinasi mata tangan terhadap kemampuan servi. 2. Ada hubungan antara power lengan terhadap kemampuan servis. 3. Ada hubungan antara panjang lengan terhadap kemampuan servis. 4. Ada hubungan antara koordinasi mata tangan, power lengan dan panjang lengan terhadap kemampuan servis.
تقويم واقع الوحدة والتنوع في انظمة تصميم الاعلان المطبوع
Authors: د. باسم عباس علي  
Published: February 2023

تعد انظمة التصميم اساسا لتحقيق الوحدة والتنوع في اظهار الفكرة التصميمية للاعلان المطبوع .
وهي تعطي فعلا يحققه المصمم من خلال التحقق النهائي للفكرة ، وهو الاساس الذي حددت مشكلة البحث من خلال الكشف عن حقيقة ان الوحدة والتنوع شرط أساسي في بناء نظام تصميمي فاعل حيوي في الهيئة الكلية للاعلان المطبوع.
للوصول إلى النتائج المرجوة وضع هدف البحث الذي مفاده هو: تقويم واقع الوحدة والتنوع في الانظمة للاعلان المطبوع.
شملت محاور الاطار النظري تفسير فاعلية الوحدة والتنوع في الانظمة التصميمية الطباعية، أي تقويم فاعلية الوحدة والتنوع في الانطمة التصميمية.. اذ حدد منها: الوحدة، الوحدة والتنوع في الانظمة التصميمية، التنوع من خلال التقسيمات الفضائية، الانطمة التصميمية للاعلان المطبوع، الفكرة الاعلانية .
صمم الباحث استمارة تقويم للاعلان المطبوع ، حدد الباحث العينات المنتخبة قصديا بلغت (3) ثلاث اعلانات لمناشئ متعددة من مجتمع بحث كلي البالغ (100) مائة اعلان أي بنسبة 3% من مجتمع البحث الكلي، على وفق ضرورات بررها الباحث، وكان من النتائج الآتي:

ضعف الاهتمام باشغال الرسالة الاعلانية بسبب الاهتمام باظهار الصورة الاعلانية.
الاهتمام بتعدد الاتجاه في التصميم الواحد وكثيرة الانفتاح بالفضاء نحو الخارج أو الداخل التصميمي لاعطاء توسع فضائي اكثر.
التوزيع المتكافئ للوحدات الشكلية سواء كانت الاعلى ازاء الاسفل أو العكس، الجانبين ايمن ازاء الايسر وهكذا.
اتصفت البعض من عينة البحث بايهام حركي ضمن توازنات غير متماثلة تبعا لهدف الاعلان في واحدة الخصائص الترغيبية، الاثارة والحركة.

اوصي الباحث بضرورة:

اعطاء اهمية للتقسيمات الفضائية ناتج شرطي لفاعلية الاتجاه كونها الاساس لتحقيق الوحدة والتنوع في الانظمة التصميمية.
الاكثار من المعالجات التقنية ذات الفعل الاستثنائي للشكل أو صفاته المظهرية.
تأثير تمرينات بدنية باستخدام وسائل مساعدة في بعض القدرات البدنية للاعبي الوثبة الثلاثية
Authors: ا.م.د. أحلام صادق حسين  , علي جعفر علي حمود  
Published: February 2023

ان أهمية البحث تكمن باستخدام تمرينات نوعية مصاحبة للأجهزة لتطوير القدرات البدنية ومستوى الأداء للاعبي الوثبة الثلاثية، ووضع الأسس العلمية الصحيحة عند استخدام التمرينات البدنية وبذلك يسهم هذا البحث إسهاماً علمياً جاداً في دراسة واحدة من المشكلات الميدانية في فعالية الوثبة الثلاثية.
ويهدف البحث الى :

اعداد تمرينات باستخدام وسائل مساعدة تتلاءم وقدرات عينة البحث التجريبية.
إعداد تدريبات بوسائل مساعدة مختلفة لتطوير القدرات البدنية لدى لاعبي الوثبة الثلاثية.

آما فروض البحث فكانت كآلاتي :-

توجد فروق ذات دلالة احصائية بين الاختبارات القبلية والبعدية في القدرات البدنية لعينة البحث التجريبية.

وقد استخدم الباحث المنهج التجريبي على مجموعة واحدة لملاءمته طبيعة البحث لأسباب تتعلق بتحقيق أهداف الدراسة وهم من لاعبي مدرسة التخصصية لألعاب الساحة والميدان في الوثبة الثلاثية وعددهم (8) لاعبين، وقد تم تحقيق التجانس في متغيرات (الطول ، والوزن ، والعمر، لعمر التدريبي ) ، وقد استغرق المنهج ( 8 ) أسابيع وبواقع ثلاث وحدات في الأسبوع. وقد توصل الباحث إلى الاستنتاجات الآتية :-

استخدام تمرينات ذات ردود الافعال السريعة ساهمت في استثارة العضلات العاملة مما ساهم في تطور القدرات البدنية ضمن متطلبات فعالية الوثبة الثلاثية.

آما أهم التوصيات التي توصل أليها الباحث فهي :-

استخدام التمرينات النوعية المقترحة قيد الدراسة في برامج التـدريب لتحـسين القدرات البدنية وتطوير مستوى أداء فعالية الوثبة الثلاثية .
Boerhaave syndrome in our midst. Presentation of 2 cases and review of the national literature.
Authors: Carbonell Morote S , Ruiz de la Cuesta García Tapia E , Gracia Alegría E , Ramia JM 
Published: February 2023

Resumen

El síndrome de Boerhaave (SB) o rotura espontánea del esófago es una causa rara de perforación esofágica pero asociada a una elevada mortalidad. Asociado a un vómito profuso, su diagnóstico exige un alto índice de sospecha. La morbilidad y mortalidad asociada está directamente asociada al diagnóstico precoz donde el tratamiento quirúrgico inicial es el que mejor resultados obtiene. Aunque hay series internacionales publicadas no existe hasta la fecha ninguna revisión de la literatura nacional. Presentamos una revisión nacional de los casos de SB desde 1989 hasta la fecha actual y dos casos propios.
Variations of the pancreatic glandular contour: image that can simulate a pancreatic neoplasm.
Authors: Rodríguez Sanz MB , Moreno Racionero F , Aguado De Benito A , Guilarte Hernandez H , Louredo Méndez AM 
Published: February 2023

Resumen

Existen numerosas variaciones de la forma, talla y del contorno del parénquima pancreático. El páncreas izquierdo se encuentra en el epiplón pancreato-esplénico. Según el desarrollo de este epiplón y su comunicación con el epiplón espleno-gástrico, la cola del páncreas puede ser más o menos móvil y ocupar espacios variables en el hipocondrio izquierdo; esto va a permitir formas originales: páncreas plano, concavidad inferior, en gancho anterior o posterior, etc, incluso se puede observar en ocasiones un páncreas bífido.

Existen pocos artículos publicados que describan las variaciones del contorno del páncreas; por tal motivo, el objetivo de este artículo es la revisión de las diferentes variantes anatómicas que podemos encontrar durante las exploraciones radiológicas que se efectúan por diferentes motivos que pueden semejar tumoraciones neoplásicas.
Automatic and controlled attentional orienting toward emotional faces in patients with Parkinson’s disease
Authors: Righi Stefania , Gronchi Giorgio , Ramat Silvia , Gavazzi Gioele , Cecchi Francesca , Viggiano Maria Pia 
Published: February 2023

AbstractParkinson’s disease (PD) is a neurodegenerative motor disorder that can associate with deficits in cognitive and emotional processing. In particular, PD has been reported to be mainly associated with defects in executive control and orienting attentional systems. The deficit in emotional processing mainly emerged in facial expression recognition. It is possible that the defects in emotional processing in PD may be secondary to other cognitive impairments, such as attentional deficits. This study was designed to systematically investigate the different weight of automatic and controlled attentional orienting mechanisms implied in emotional selective attention in PD. To address our purpose, we assessed drug-naïve PD patients and age-matched healthy controls with two dot-probe tasks that differed for stimuli duration. Automatic and controlled attentions were evaluated with stimuli lasting 100 ms and 500 ms, respectively. Furthermore, we introduced an emotion recognition task to investigate the performance in explicit emotion classification. The stimuli used in both the tasks dot-probe and emotion recognition were expressive faces displaying neutral, disgusted, fearful, and happy expressions.Our results showed that in PD patients, compared with healthy controls, there was 1) an alteration of automatic and controlled attentional orienting toward emotional faces in both the dot-probe tasks (with short and long durations), and 2) no difference in the emotion recognition task. These findings suggest that, from the early stages of the disease, PD can yield specific deficits in implicit emotion processing task (i.e., dot-probe task) despite a normal performance in explicit tasks that demand overt emotion recognition.