bluuebunny/crossref_metadata_2025_split huggingface dataset:
Improvement of Physical Performance Following a 6 Week Change-of-Direction Training Program in Elite Youth Soccer Players of Different Maturity Levels
Authors: Sariati Dorsaf , Hammami Raouf , Zouhal Hassane , Clark Cain C. T. , Nebigh Ammar , Chtara Mokhtar , Chortane Sabri Gaied , Hackney Anthony C. , Souissi Nizar , Granacher Urs , Ounis Omar Ben 
Published: May 2021

Background: Change-of-direction (CoD) is a necessary physical ability of a field sport and may vary in youth players according to their maturation status.Objectives: The aim of this study is: to compare the effectiveness of a 6-week CoD training intervention on dynamic balance (CS-YBT), horizontal jump (5JT), speed (10 and 30-m linear sprint times), CoD with (15 m-CoD + B) and without (15 m-CoD) the ball, in youth male soccer players at different levels of maturity [pre- and post-peak height velocity (PHV)].Materials and Methods: Thirty elite male youth soccer players aged 10–17 years from the Tunisian first division participated in this study. The players were divided into pre- (G1, n = 15) and post-PHV (G2, n = 15) groups. Both groups completed a similar 6-week training program with two sessions per week of four CoD exercises. All players completed the following tests before and after intervention: CS-YBT; 5 JT; 10, 30, and 15 m-CoD; and 15 m-CoD + B, and data were analyzed using ANCOVA.Results: All 30 players completed the study according to the study design and methodology. Adherence rate was 100% across all groups, and no training or test-related injuries were reported. Pre-PHV and post-PHV groups showed significant amelioration post-intervention for all dependent variables (after test &gt; before test; p &lt; 0.01, d = 0.09–1.51). ANOVA revealed a significant group × time interaction only for CS-YBT (F = 4.45; p &lt; 0.04; η2 = 0.14), 5JT (F = 6.39; p &lt; 0.02; η2 = 0.18), and 15 m-CoD (F = 7.88; p &lt; 0.01; η2 = 0.22). CS-YBT, 5JT, and 15 m-CoD improved significantly in the post-PHV group (+ 4.56%, effect size = 1.51; + 4.51%, effect size = 1.05; and -3.08%, effect size = 0.51, respectively), more than the pre-PHV group (+ 2.77%, effect size = 0.85; + 2.91%, effect size = 0.54; and -1.56%, effect size = 0.20, respectively).Conclusion: The CoD training program improved balance, horizontal jump, and CoD without the ball in male preadolescent and adolescent soccer players, and this improvement was greater in the post-PHV players. The maturity status of the athletes should be considered when programming CoD training for soccer players.
CVAR-Seg: An Automated Signal Segmentation Pipeline for Conduction Velocity and Amplitude Restitution
Authors: Nothstein Mark , Luik Armin , Jadidi Amir , Sánchez Jorge , Unger Laura A. , Wülfers Eike M. , Dössel Olaf , Seemann Gunnar , Schmitt Claus , Loewe Axel 
Published: May 2021

BackgroundRate-varying S1S2 stimulation protocols can be used for restitution studies to characterize atrial substrate, ionic remodeling, and atrial fibrillation risk. Clinical restitution studies with numerous patients create large amounts of these data. Thus, an automated pipeline to evaluate clinically acquired S1S2 stimulation protocol data necessitates consistent, robust, reproducible, and precise evaluation of local activation times, electrogram amplitude, and conduction velocity. Here, we present the CVAR-Seg pipeline, developed focusing on three challenges: (i) No previous knowledge of the stimulation parameters is available, thus, arbitrary protocols are supported. (ii) The pipeline remains robust under different noise conditions. (iii) The pipeline supports segmentation of atrial activities in close temporal proximity to the stimulation artifact, which is challenging due to larger amplitude and slope of the stimulus compared to the atrial activity.Methods and ResultsThe S1 basic cycle length was estimated by time interval detection. Stimulation time windows were segmented by detecting synchronous peaks in different channels surpassing an amplitude threshold and identifying time intervals between detected stimuli. Elimination of the stimulation artifact by a matched filter allowed detection of local activation times in temporal proximity. A non-linear signal energy operator was used to segment periods of atrial activity. Geodesic and Euclidean inter electrode distances allowed approximation of conduction velocity. The automatic segmentation performance of the CVAR-Seg pipeline was evaluated on 37 synthetic datasets with decreasing signal-to-noise ratios. Noise was modeled by reconstructing the frequency spectrum of clinical noise. The pipeline retained a median local activation time error below a single sample (1 ms) for signal-to-noise ratios as low as 0 dB representing a high clinical noise level. As a proof of concept, the pipeline was tested on a CARTO case of a paroxysmal atrial fibrillation patient and yielded plausible restitution curves for conduction speed and amplitude.ConclusionThe proposed openly available CVAR-Seg pipeline promises fast, fully automated, robust, and accurate evaluations of atrial signals even with low signal-to-noise ratios. This is achieved by solving the proximity problem of stimulation and atrial activity to enable standardized evaluation without introducing human bias for large data sets.
Virtual Online Home-Based Treatment During the COVID-19 Pandemic for Ultra-Orthodox Young Women With Eating Disorders
Authors: Latzer Yael , Herman Esther , Ashkenazi Rahel , Atias Orna , Laufer Sofia , Biran Ovadia Ateret , Oppenheim Tova , Shimoni Meirv , Uziel Moria , Stein Daniel 
Published: May 2021

Background: With the outbreak of the COVID-19 pandemic, the need arose to maintain treatment continuity for religious Jewish Ultra-Orthodox young women with eating disorders (EDs) previously hospitalized in the ED department at the Ultra-Orthodox “Mayanei Hayeshua” medical center in Israel. This need led to the development of home-based online treatment channels, previously unfamiliar, and unaccepted in this population. The implementation of this model had to take into consideration many of the difficulties inherent in the use of online treatment in Jewish Ultra-Orthodox mental health patients.Aims: We sought to investigate our online home-based treatment model implemented during the COVID-19 pandemic in previously hospitalized young Ultra-Orthodox women with EDs.Method: We briefly review the literature on: (1) The Jewish Israeli Ultra-Orthodox culture; (2) Young women in Ultra-Orthodox society; and (3) EDs in Jewish Israeli Ultra-Orthodox women. We then present the inpatient ED department for Ultra-Orthodox young women and describe the online treatment model adapted to this population during the COVID-19 pandemic. We highlight the difficulties, dilemmas, and advantages of our online model with the description of three patients.Findings: Online therapy can serve as a barrier to treatment in some cases, due to physical (lack of suitable online devices except phones), familial (over-crowded families), and religious circumstances, as well as because of the patients' reluctance to take part in this treatment. In other cases, virtual home-based treatment can lead to a positive change. This may be the case in patients who find the distancing online model suitable for them, and in parents who are committed to treatment, using their greater physical and emotional presence at home during the COVID-19 pandemic for the good if their ill-daughters.Discussion: This paper highlights the difficulties and possibilities inherent in a virtual home-based treatment during the COVID-19 pandemic for Ultra-Orthodox young women previously hospitalized because of an ED. This model can be effective for some patients and families if undertaken by a multidisciplinary team that is not only knowledgeable about the treatment of EDs and the use of online strategies but also knowledgeable and culturally sensitive to the specific needs and codes of Ultra-Orthodox populations.
The Mediating Role of Perceived Social Support Between Resilience and Anxiety 1 Year After the COVID-19 Pandemic: Disparity Between High-Risk and Low-Risk Nurses in China
Authors: Hou Tianya , Yin Qianlan , Xu Yan , Gao Jia , Bin Lian , Li Huifen , Cai Wenpeng , Liu Ying , Dong Wei , Deng Guanghui , Ni Chunyan 
Published: May 2021

Introduction: One year after the Coronavirus disease 2019 (COVID-19) outbreak, China has made substantial progress in the prevention and control of the pandemic, while the epidemic situation remains grim in China since virus may easily survive with the falling temperature in winter. The present study aimed to compare the prevalence and associated factors of anxiety between high-risk and low-risk nurses 1 year after the COVID-19 outbreak, and examine the association between resilience and anxiety and its underlying mechanisms.Method: Connor-Davidson Resilience scale, Perceived Social Support Scale and Generalized Anxiety Disorder Scale were administrated to 701 nurses from Jiangsu Province, China, 1 year after the COVID-19 outbreak. The mediating effect was examined by Mackinnon's four-step procedure, while the moderated mediation model was tested by Hayes PROCESS macro.Results: The findings presented the prevalence of anxiety among nurses was 21.4% 1 year after the COVID-19 pandemic. High-risk nurses presented a higher prevalence of anxiety (24.5 vs. 19.3%) than low-risk nurses. Age and professional title were significantly associated with anxiety only in high-risk nurses (all P &lt; 0.05). Perceived social support mediated the association between resilience and anxiety and the indirect effect was stronger for high-risk nurses than low-risk nurses.Conclusion: Anxiety remains prevalent among nurses 1 year after the COVID-19 outbreak, and resilience plays a protective role against anxiety. Programs that enhance resilience and social support should be designed and special attention should be paid to nurses from high-risk units.
Continuous Normothermic Machine Perfusion for Renovation of Extended Criteria Donor Livers Without Recooling in Liver Transplantation: A Pilot Experience
Authors: Chen Zhitao , Hong Xitao , Huang Shanzhou , Wang Tielong , Ma Yihao , Guo Yiwen , Huang Changjun , Zhao Qiang , Guo Zhiyong , He Xiaoshun , Ju Weiqiang , Chen Maogen 
Published: May 2021

Background: Ischemia injury affects the recovery of liver allograft function. We propose a novel technique aimed at avoiding a second ischemic injury: transplanting an extended criteria donor (ECD) liver directly under normothermic machine perfusion (NMP) without recooling. We studied two cases to evaluate the efficacy and safety of this technique.Methods: The perioperative characteristics and postoperative outcomes of two recipients of ECD livers were analyzed. Both transplantations were performed with continuous normothermic machine perfusion without recooling.Result: In case 1, the cause of donor death was anoxia, and the donor liver had hypernatremia before procurement. The recipient was diagnosed with decompensated cirrhosis. His model for end-stage liver disease (MELD) score was 38. In case 2, the donor liver was from a donor after cardiac death (DCD), and the donor had elevated aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels. The recipient was diagnosed with acute hepatic failure. His MELD score was 35. Both donor livers were maintained under NMP and then transplanted without recooling. The peak ALT and AST levels after surgery were 452 and 770 U/L in case 1 and 100 and 592 U/L in case 2. Neither early allograft dysfunction (EAD) nor primary graft non-function (PNF) was present in these two cases.Conclusion: In conclusion, our results demonstrate that continuous NMP without recooling is efficacious and safe for LT with extended criteria donor livers. Further investigations of this technique will be performed to confirm these promising results.
Relationship Between Pre-operative Blood Glucose Level and Length of Hospital Stay in Patients With Renal Cell Carcinoma Undergoing Laparoscopic Nephrectomy
Authors: He Ting , Zhu Weidong , Wang Chunying , Lu Haowen , Wu Tiange , Pan Kehao , Chen Shuqiu , Xu Bin , Mao Weipu , Li Wei , Chen Ming 
Published: May 2021

Purpose: The aim of this study was to assess the effect of pre-operative blood glucose (POBG) levels on the length of stay (LOS) in patients with renal cell carcinoma (RCC) undergoing laparoscopic nephrectomy.Methods: We collected clinical data on 338 patients with RCC who underwent laparoscopic nephrectomy between 2014 and 2019. Univariate and multivariate logistic regression and dose-response analysis curves of restricted cubic spline function were used to investigate the relationship between POBG and LOS.Results: According to the level of POBG, we divided the patients into three groups: &lt;4.94 mmol/L group, 4.94 to &lt;7.11 mmol/L group, and ≥7.11 mmol/L group. According to the dose-response analysis curves, we found that the adjusted risk of LOS &gt; 2 weeks and LOS &gt; 3 weeks gradually increased with increasing POBG. In addition, we found that among all patients, patients with POBG levels ≥ 7.11 mmol/L had a 115% higher risk of LOS &gt; 2 weeks than patients with POBG levels &lt;4.94 mmol/L [adjusted odds risk (aOR) 2.15; 95% CI 1.11-4.20; p = 0.024] and patients with POBG levels ≥ 7.11 mmol/L had a 129% higher risk of LOS &gt; 3 weeks than patients with POBG levels &lt;4.94 mmol/L (aOR 2.29; 95% CI 1.16-4.52; p = 0.017). Moreover, similar results were observed in the most subgroups analysis.Conclusion: We found that in patients with RCC undergoing laparoscopic nephrectomy, higher POBG levels were significantly associated with prolonged LOS.
Effects of Ridge Tillage and Straw Mulching on Cultivation the Fresh Faba Beans
Authors: Li Bo , Chen Xinyu , Shi Xiaoxu , Liu Jian , Wei Yafeng , Xiong Fei 
Published: May 2021

Ridge tillage is an effective agronomic practice and a miniature precision agriculture; however, its effects on the growth of faba beans (Vicia faba L.) are poorly understood. This study aimed to determine the effect of ridge tillage and straw mulching on the root growth, nutrient accumulation and yield of faba beans. Field experiments were conducted during 2016 and 2017 cropping seasons and comprised four treatments: ridge tillage without any mulching (RT), flat tillage without any mulch (FT), flat tillage with rice straw mulched on the ridge tillage (FTRSM) and ridge tillage with rice straw mulched on the ridge tillage (RTRSM). The RT and RTRSM increased soil temperature and decreased soil humidity and improved soil total nitrogen, total phosphorus, available potassium and organic matter. RT and RTRSM increased the root length density, root surface area, root diameter and root activity of faba beans at flowering and harvest periods. The RT and RTRSM also increased the nitrogen, phosphorus, potassium absorption and the yield of faba beans. These results indicated that ridge tillage and straw mulching affect faba bean growth by improving soil moisture conditions and providing good air permeability and effective soil nutrition supply. This study provides a theoretical basis for the high yield cultivation improvement of faba beans.
Exploring the Association between Sleep Quality and Heart Rate Variability among Female Nurses
Authors: Hsu Hsiu-Chin , Lee Hsiu-Fang , Lin Mei-Hsiang 
Published: May 2021

The quality of nurses’ work has a direct effect on patient health, and poor sleep has been positively associated with nurses’ medical errors. The aim of this study was to investigate the relationship between quality of sleep and heart rate variability (HRV) among female nurses. A descriptive cross-sectional correlational study design was used in January 2014 to study female nurses (n = 393) employed in a medical center in Taiwan. Data were obtained from several questionnaires. HRV was analyzed with five-minute recordings of heart rate signals obtained using a Heart Rater SA-3000P. Approximately 96% of the participants self-reported a poor quality of sleep. Compared to non-shift nurses, significant decreases were found in total power (TP) and low-frequency HRV among shift-work nurses. However, negative correlations were found between sleep quality and HRV, including total power, low frequency, and the low frequency/high frequency ratio (r = −0.425, p < 0.05; r = −0.269, −0.266, p < 0.05). In a stepwise multiple regression analysis, 23.1% of variance in quality of sleep can be explained by TP and heart rate. The sleep quality of female nurses was poor and this affected their autonomic nervous system, which can contribute unfavorable consequences for their health.
Prasa a internet: konkurencja czy komplementarność?
Authors: Kotowska Agata 
Published: May 2021

The author’s considerations concern the relationship in the period of fundamental changes in technology and culture between the press and the Internet — two media which are different in both form and function. The influence of the press is changing which is shown in the diminishing sales worldwide, and the significance of the Internet is increasing. The systematic contraction of the market for the press is caused by several factors. The competitiveness of the Internet increases with the increasing participation of the young generation in social life. At the same time there is a deep cultural transformation underway which involves the increasing domination of the pictorial environment, the marginalization of the word, the shallowness which replaces previous values. There are many possible futures for the press. The most probable is that it will adapt in form and will continue to exist in the media market. The influence of the press on future societies remains unclear.
Florística, Fitossociologia e Índices de Diversidade da Caatinga em Assentamento Rural no Rio Grande do Norte, Brasil
Authors: Santana José Augusto da , Figueredo da Silva Zaccharias1 Adriana , Brito da Silva Amanda , Da Silva Monteiro Freire Ageu , Garcia Zaccharias Eduardo 
Published: May 2021

A Caatinga é um bioma localizado na região Nordeste do Brasil, abrangendo cerca de 10% do território nacional e com elevada população dependente dos produtos oriundos de sua vegetação. O objetivo deste trabalho foi caracterizar a composição florística, fitossociológica e a diversidade do componente arbóreo-arbustivo na área dos lotes do Assentamento Rural Lagoa Nova I, localizado no município de Riachuelo, Rio Grande do Norte/RN. Para tanto, realizou-se o levantamento florístico em 15 unidades amostrais de 20 x 10m (200mÇ), onde, em cada unidade amostral, foram inventariados todos os indivíduos arbóreo-arbustivos vivos que apresentaram circunferência a 1,30m do solo superior ou igual a 15cm (CAP ≥ 15cm). Avaliaram-se os parâmetros fitossociológicos e a estrutura, além da diversidade florística das espécies através do Índice de Shannon-Weaver, a dominância de Simpson e a equabilidade de Pielou. Depois de mais de 30 anos após a erradicação do cultivo de algodão na área, com a vegetação dos lotes sendo mantida em sistema de pousio, observou-se que a família com maior destaque foi a Fabaceae, com 8 espécies e 186 indivíduos, enquanto as espécies com maior importância na área de estudo foram Poincianella pyramidalis (15,55%), Bumelia sartorum (12,46%) e Mimosa tenuiflora (11,25%). A diversidade de espécies na área dos lotes dos assentados foi considerada acima da média, quando comparada com outros fragmentos florestais de Caatinga já estudados, com condições edafoclimáticas semelhantes, e se encontra em bom estado de preservação, estando ainda no estágio inicial de sucessão ecológica.
Parto por cesárea y morbimortalidad en neonatos del Hospital las Mercedes, marzo a octubre del 2019
Authors: Cueva Puelles Lizeth Abigail , Ching Díaz Karen Y. , Monsalve-Mera Alain E. 
Published: May 2021

La cesárea es la cirugía más realizada en los hospitales de segundo nivel. Según OMS, luego de una cesárea existe un riesgo 2 veces mayor de ingreso del neonato a cuidados intensivos por más de 7 días, tanto si la cesárea fue a elección como por urgencias Objetivos: Determinar la incidencia de parto por cesárea e influencia en la morbimortalidad en neonatos del Hospital las Mercedes, Marzo –Octubre 2019.Materiales y métodos: Estudio censal con 295 historias clínicas. Se elaboró una ficha de recolección de datos que contempla variables sobre características de pacientes del Servicio de Neonatología del Hospital las Mercedes. Resultados y conclusiones: La incidencia de parto en el hospital fue de 48%, mientras que en el Servicio de Neonatología fue del 54%. El 52% de los neonatos presentó dificultad respiratoria, el 11,2% leve, 37% moderado y el 2,3% severo. Los neonatos nacidos por cesárea tuvieron una mortalidad 0,6%, TTRN de 44% y SALAM 3,8%. La infección neonatal y la sepsis fue 10% mayor en neonatos nacidos por parto vaginal que por cesárea. En síntesis, la incidencia de partos en el HLM está muy por encima a la incidencia reportada por otros estudios a nivel Nacional y según la OMS. La mayoría de los neonatos padeció dificultad respiratoria en un nivel leve o moderado. La sepsis neonatal precoz es muy más frecuente en nacidos por parto vaginal y no es posible determinar la influencia del parto por cesárea en la obtención de APGAR BAJO al 5 minuto.
A new species of the genus Potamophylax Wallengren, 1891 (Trichoptera: Limnephilidae) from Qafështamë National Park in Albania
Authors: Ibrahimi Halil , Bilalli Astrit 
Published: May 2021

In this paper we describe Potamophylax qafshtamaensis sp. n., a new species of the Potamophylax winneguthi species group, from Qafështamë National Park in Albania. The new species belongs to the Potamophylax tagas species cluster and is most close to Potamophylax hajlos Oláh, 2012 and Potamophylax alsos Oláh, 2014. Potamophylax qafshtamaensis sp. n. differs from all known species of the P. tagas species cluster by its unique shape of aedeagus. It also differs from its most similar congeners mainly in exhibiting differently shaped inferior appendages and parameres in males, as well as setose sternite IX and the dorsal unsetose plate of the anal tube in female.The new species is microendemic of Qafështamë National Park and is the fifth known species of the Potamophylax tagas species cluster, which is distributed in Albania and Macedonia.
The Gas Content and Stripping of Local Group Dwarf Galaxies
Authors: Putman Mary E. , Zheng Yong , Price-Whelan Adrian M. , Grcevich Jana , Johnson Amalya C. , Tollerud Erik , Peek Joshua E. G. 
Published: May 2021

Abstract
The gas content of the complete compilation of Local Group dwarf galaxies (119 within 2 Mpc) is presented using H i survey data. Within the virial radius of the Milky Way (224 kpc here), 53 of 55 dwarf galaxies are devoid of gas to limits of M
H i
< 104
M
⊙. Within the virial radius of M31 (266 kpc), 27 of 30 dwarf galaxies are devoid of gas (with limits typically <105
M
⊙). Beyond the virial radii of the Milky Way and M31, the majority of the dwarf galaxies have detected H i gas and H i masses higher than the limits. When the relationship between gas content and distance is investigated using a Local Group virial radius, more of the nondetected dwarf galaxies are within this radius (85 ± 1 of the 93 nondetected dwarf galaxies) than within the virial radii of the Milky Way and M31. Using the Gaia proper-motion measurements available for 38 dwarf galaxies, the minimum gas density required to completely strip them of gas is calculated. Halo densities between 10−5 and 5 × 10−4 cm−3 are typically required for instantaneous stripping at perigalacticon. When compared to halo density with radius expectations from simulations and observations, 80% of the dwarf galaxies with proper motions are consistent with being stripped by ram pressure at Milky Way pericenter. The results suggest that a diffuse gaseous galactic halo medium is important in quenching dwarf galaxies, and that a Local Group medium also potentially plays a role.