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The Mg-DIB also demonstrated a capacity retention of 77% at 5C, indicating its good rate performance. Moreover, the Mg-DIB exhibited a high discharge medium voltage of ∼1.83 V, thus enabling a high energy density of 174 W h kg-1 at 183 W kg-1 and 122 W h kg-1 at a high power density of 845 W kg-1, among the best of the reported magnesium-ion full batteries. Our work provides a new strategy to improve the performance of MIBs and other rechargeable batteries.Quaternary Cs2AgBiBr6 perovskites have been considered as a potential candidate to simultaneously resolve the lead toxicity and instability issues of unprecedented organic-inorganic hybrid halide perovskites. Unfortunately, the photovoltaic efficiency is still lower owing to the great challenge to make high-quality Cs2AgBiBr6 film with fewer defects. Herein, we demonstrate alkali metal ions including Li+, Na+, K+, and Rb+ as mediators to regulate the crystal lattice and film quality of Cs2AgBiBr6 perovskites. A less-pinhole perovskite film is obtained by precisely controlling the doping dosage and element species, significantly reducing the defects. When assembled into a hole-transporting material-free, carbon-electrode perovskite solar cell, a significantly enhanced efficiency of 2.57% compared to the undoped device with 1.77% efficiency has been achieved owing to the suppressed shunt current loss. Additionally, this device displays superior tolerance under high-temperature and air conditions without encapsulation, providing new opportunities to promote the future development of lead-free Cs2AgBiBr6 perovskites in the photoelectric field.
The aim of the study was to evaluate sexual function in women before and after tension-free vaginal tape (TVT) surgery for the treatment of stress urinary incontinence (SUI).
Between August 2014 and August 2018, 105 sexually active patients with SUI who underwent TVT surgery were enrolled in this prospective cohort study. The Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire Short Form (PISQ-12) was administered pre- and postoperatively. Statistical analyses were performed using paired-sample t tests.
The sexual function of 105 patients 1 year after the TVT procedure improved in 81 (77.1%) patients, remained unchanged in 18 (17.1%) patients, and deteriorated in 6 (5.7%) patients. The mean PISQ-12 score increased from 29.65 at baseline to 33.04 at the 1-year follow-up (P < 0.001). Improvement was prominent in the physical domain of the PISQ-12 (P < 0.001), but the emotional (P = 0.948) and partner-related (P = 0.915) domains showed no significant changes. The increase in the physical domain score caused the increase of the total PISQ-12 score. Compared with preoperative values, there was no significant change in the score of pain during sexual intercourse (P = 0.425) at 1 year after the TVT procedure. Women experienced less coital incontinence (P < 0.001), less fear of incontinence during intercourse (P < 0.001), and less negative emotional reactions (P < 0.001) during intercourse after the TVT operation than before the TVT operation.
Sexual function was improved in patients with SUI after TVT surgery.
Sexual function was improved in patients with SUI after TVT surgery.Hills, SP, Barrett, S, Busby, M, Kilduff, LP, Barwood, MJ, Radcliffe, JN, Cooke, CB, and Russell, M. Profiling the post-match top-up conditioning practices of professional soccer substitutes An analysis of contextual influences. J Strength Cond Res 34(10) 2805-2814, 2020-Soccer practitioners implement "top-up" conditioning sessions to compensate for substitutes' limited match-play exposure. Although perceived to be valuable for reducing injury risk and augmenting positive physical adaptations, little research has considered the demands of post-match top-up training. To quantify post-match top-up responses, 31 professional soccer players wore 10 Hz microelectromechanical systems after 37 matches whereby they were selected in the match-day squad as substitutes (184 observations; 6 ± 5 observations·player). Linear mixed models and effect sizes (ES) assessed the influence of contextual factors on 23 physical performance variables. Top-ups lasted 17.13 ± 7.44 minutes, eliciting total and high-speed distances of 1.ovide important information for practitioners when considering the aims and design of substitute top-up conditioning sessions, particularly with reference to contextual influences.Fernandez-Fernandez, J, García-Tormo, V, Santos-Rosa, FJ, Teixeira, AS, Nakamura, FY, Granacher, U, and Sanz-Rivas, D. The effect of a neuromuscular vs. dynamic warm-up on physical performance in young tennis players. J Strength Cond Res 34(10) 2776-2784, 2020-The aim of this study was to examine performance-enhancing (i.e., training) effects of a neuromuscular warm-up (NWU) compared with a dynamic WU (DWU) in young tennis players. Twenty-eight well-trained male tennis players with a mean age of 15.09 ± 1.16 years participated in this study and were assigned to either a training group performing NWU (n = 14), or a group that followed DWU (n = 15) before tennis-specific training, for 8 weeks. Pretest and posttest included speed (5, 10, and 20 m); modified 5-0-5 change of direction (COD) test; bilateral/unilateral countermovement jump (CMJ); 2 kg overhead, forehand, and backhand-side medicine ball throw performance (MBT); serve velocity, and shoulder strength and range-of-motion (ROM) performance (i.e., internal [IR]/external [ER] rotation). Results showed that both groups, NWU and DWU, significantly improved their sprint performances (5-20 m; [p less then 0.05; d = 0.83-1.32]), CMJ (bilateral and unilateral [dominant side] [p less then 0.005; d = 1.27-1.59]), overhead MBT (p = 0.014; d = 1.02), and some shoulder strength (i.e., IR dominant side [D], ER D, ER/IR ratio [p less then 0.05; d = 0.86-1.59]) and ROM (i.e., ER D, total ROM D [p less then 0.05; d = 0.80-1.02]) values. However, the interaction effects revealed that NWU compared with DWU produced greater performance gains in most of the analyzed parameters (i.e., 5-10 m sprint, CMJ, overhead MBT, serve speed). The inclusion of an NWU characterized by a relatively low volume (∼20-35 minutes), including general mobility, core, and shoulder strength exercises, combined with neuromuscular-related exercises (e.g., plyometric and acceleration/deceleration/COD drills), can be recommended to obtain positive effects in tennis performance-related variables.Vera-Assaoka, T, Ramirez-Campillo, R, Alvarez, C, Garcia-Pinillos, F, Moran, J, Gentil, P, and Behm, D. Effects of maturation on physical fitness adaptations to plyometric drop jump training in male youth soccer players. J Strength Cond Res 34(10) 2760-2768, 2020-The objective of this study was to compare the effects of maturation on physical fitness adaptations to a twice weekly, 7-week plyometric drop jump training program. Seventy-six young male soccer players (aged 10-16 years) participated in this randomized controlled trial. Before and after the intervention, a physical fitness test battery was applied (countermovement jump; drop jump from 20 to 40 cm; 5 multiple bounds test; 20-m sprint time; change of direction speed; 2.4-km running time-trial; 5 repetition maximum [RM] squat; and maximal kicking distance). Participants were randomly divided into an active soccer-control group (CG) with Tanner stage maturation of 1-3 (CG-early; n = 16) or Tanner stage 4-5 (CG-late; n = 22), and to plyometric drop jump training groups with Tanner stage 1-3 (plyometric jump training [PJT]-early; n = 16) or 4-5 (PJT-late; n = 22). The analysis of variance and effect size (ES) measures revealed that when compared with their age-matched controls, the PJT-early (ES = 0.39-1.58) and PJT-late (ES = 0.21-0.65) groups showed greater improvements (p less then 0.05) in sprint time, 2.4-km running time-trial, change of direction speed, 5RM squat, jumping, and kicking distance. The PJT-early exceeded the PJT-late group with greater (p less then 0.05) improvements in drop jump from 20 cm (ES = 1.58 vs. 0.51) and 40 cm (ES = 0.71 vs. 0.4) and kicking distance (ES = 0.95 vs. 0.65). Therefore, a 7-week plyometric drop jump training program was effective in improving physical fitness traits in both younger and older male youth soccer players, with greater jumping and kicking adaptations in the less-mature athletes.We evaluated the performance of PRISM IV for pediatric cancer patients, and adapted and calibrated the algorithm to calculate mortality probabilities for these patients. An ambidirectional cohort was used, and data were collected from March 2017 prospectively to April 2019, and retrospectively to November 2014. The derivation set for model building contained 500 patients, and a validation set of 503 patients. Risk variables for hospital death were tested in logistic regression models encompassing PRISM IV components. There were 128 deaths (12.7%), being 65 deaths in the validation set. In the validation set, the PRISM IV algorithm had an area under the receiver operating characteristic curve of 0.89, with P=0.13 by Hosmer-Lemeshow test, and predicted 33 of the 65 deaths for a standardized mortality rate of 1.8 (95% confidence interval, 1.4-2.9; P less then 0.001 by Mid-P test). Our modified algorithm had an area under the receiver operating characteristic curve of 0.93, with P=0.3 by Hosmer-Lemeshow test and an standardized mortality rate of 1.02 (95% confidence interval, 0.79-1.19). The modified algorithm predicted 63.7 of 65 deaths. The PRISM IV algorithm was a poor predictor of mortality in children with cancer. The modified algorithm improved the predictive performance.
The aim of the study was to determine how experts treat vulvar high-grade squamous intraepithelial neoplasia (VHSIL) and differentiated vulvar intraepithelial neoplasia (dVIN).
A 26-question survey was designed through a literature review, reviewed by the Survey Committee of the International Society for the Study of Vulvovaginal Disease (ISSVD), and distributed to all ISSVD members via e-mail in January 2019.
Overall, 90 of 441 physician members consented to participate and 78 of 90 were eligible to complete the survey. Most respondents were gynecologists (77%), followed by dermatologists (12%). Forty-five percent responded that their pathology was being reported using the 2015 ISSVD terminology of vulvar squamous intraepithelial lesions. The most common first-line treatments were as follows unifocal VHSIL-excision (65%), multifocal VHSIL-imiquimod 5% (45%), VHSIL in a hair-bearing area-excision (69%), and clitoral disease-imiquimod 5% (47%). In the recurrent VHSIL, excision was favored (28%), followed by imiquimod 5% (26%) and laser (19%). Differentiated vulvar intraepithelial neoplasia was most often first treated with excision (82%), and more patients were referred to gynecologic oncology. selleck chemical Most patients were seen in follow-up at 3 months (range 1 week-6 months). Sixty-seven respondents provided 26 different ways to follow treated patients, which were most commonly every 6 months for 2 years and then yearly (25%), followed by every 6 months indefinitely (18%).
Treatment of VHSIL and dVIN varies among vulvar experts with excision being the most common treatment, except in multifocal VHSIL where imiquimod is commonly used. There is wide variation in how patients are followed after treatment.
Treatment of VHSIL and dVIN varies among vulvar experts with excision being the most common treatment, except in multifocal VHSIL where imiquimod is commonly used. There is wide variation in how patients are followed after treatment.