bluuebunny/crossref_metadata_2025_split huggingface dataset:
Facile method for the selective recovery of Gd and Pr from LCD screen wastes using ultrasound-assisted leaching
Authors: Toache-Pérez Astrid D. , Bolarín-Miró Ana M. , Sánchez-De Jesús Félix , Lapidus Gretchen T. 
Published: September 2020

AbstractRare earth elements (REE) are essential for the production of technological devices. However, their high demand and low availability, together with an increase in electronic waste generation, compel the development of efficient, economic and green methods for recovering these elements from electronic waste. In this work, a facile method for selective recovering of REE from Liquid Crystal Display (LCD) screen wastes, employing ultrasound assisted leaching is presented. The screen wastes were milled and sieved to pass through a − 325 mesh sieve (44 μm). The milled powder was subjected to ultrasound-assisted leaching in an aqueous medium, at room temperature (25 °C) and pH 6 for 60 min. Subsequently, a magnetic separation was applied to the leach residue. Inductively coupled plasma was employed to quantitatively analyze the composition of the LCD powders and determine the effectiveness of the extraction process. Scanning Electron Microscopy/Energy Dispersive X-Ray Spectroscopy allowed qualitative chemical analysis of the solid materials. The results show that the LCD screen wastes are formed, mainly, by amorphous oxides of Si, Fe, In, Sn and REE. The amount of Gadolinium (Gd) and Praseodymium (Pr) in the wastes were 93 and 24 mg kg− 1, respectively, which justifies their recovery. X-ray diffraction analysis of the magnetic portion of the leached residue, confirmed the presence of an amorphous phase together with crystalline metallic iron alloy. The magnetic behavior, obtained by Vibration Sample Magnetometry, helped to understand the nature of the residues. The formation of this metallic alloy is attributed to the effect of high power ultrasonic during the leach. It was confirmed that the magnetic residue concentrates and recovers 87 wt% of Gd and 85 wt% of Pr contained in the original material. Therefore, ultrasound-assisted leaching is a selective and facile method for recovering Gd and Pr from waste LCD.
Adsorption of Lead, manganese, and copper onto biochar in landfill leachate: implication of non-linear regression analysis
Authors: Zand Ali Daryabeigi , Abyaneh Maryam Rabiee 
Published: September 2020

AbstractThe feasibility of using wood-derived biochar (BC) to remove Pb, Mn, and Cu from landfill leachate was investigated and modeled in this study. BC was produced under the pyrolytic temperature of 740 °C. The effect of contact time, BC dosage and particle size on adsorption of the heavy metals onto BC was examined. BC was used in two forms i.e., pulverized (PWB) and crushed (CWB) to evaluate the effect of BC particle size on adsorption characteristics. The kinetics of Pb, Mn, and Cu adsorption onto PWB and CWB were assessed using the pseudo second-order and Elovich models, where both applied models could well describe the adsorption kinetics. Removal efficiencies of the heavy metals were increases by 1.2, 1.4, and 1.6 times, respectively, for Pb, Mn, and Cu, when PWB content of the leachate increased from 0.5 to 5 g L− 1. Equilibrium adsorption capacity of the heavy metals onto BC in leachate system was evaluated using the Langmuir, non-linearized Freundlich, linearized Freundlich, and Temkin isotherms and found to have the following order for PWB: Non-linearized Freundlich > Temkin > Langmuir > Linearized Freundlich. The Langmuir and linearized Freundlich models could not adequately represent adsorption of the heavy metals onto BC, especially for CWB. The highest removal of 88% was obtained for Pb, while the greatest adsorption intensity was found to be 1.58 mg g− 1 for Mn. Using the non-linearized Freundlich isotherm significantly reduced adsorption prediction error. The adsorption affinity of PWB for Pb, Mn, and Cu was greater than that of CWB in all treatments. Wood-derived BC is suggested to be used for the removal of heavy metals from landfill leachate as an economical adsorbent.
Infertility within the Lebanese population: beliefs and realities
Authors: Sahakian Jean-Paul K. K. , El Helou Elie , Azoury Jessica , Salameh Laure , Abou Jaoude Imad , Sleilaty Ghassan 
Published: September 2020

Abstract
Background
Infertility affects almost one in five couples but is still poorly understood by the general public. Although the socio-cultural aspect of infertility has already been covered in some countries, there is currently no study concerning the Lebanese population’s view on this topic. This study aims to examine the knowledge and perception of the Lebanese population regarding infertility. The findings of this study could inform the creation of appropriate awareness campaigns aiming to rectify existing ideas based on myths and Lebanese folklore and establish a scientific understanding of infertility.

Results
Six hundred and nine participants were interviewed, and the responses recorded were statistically significant and correlated with p values < 0.05 with the participants’ personal data, in particular their gender and academic level. Men were twice as likely as women to believe that couple infertility is a valid reason for a divorce or a second marriage. In addition, most men said that they would first consult a gynecologist in the event of couple infertility, which highlights the fact that the general population assumes the cause of infertility is of female origin, even though both sexes are frequently affected. In addition, men are twice as likely as women to refuse to live with an infertile spouse and the most educated respondents tend to be more aware and open to the idea of adopting a child or to use in vitro fertilization.

Conclusion
This study is the first to examine the socio-cultural beliefs and habits regarding infertility in Lebanon, with a focus on society’s attribution of infertility to women. More studies are needed to understand how a personal experience of infertility can affect one’s understanding and perceptions regarding infertility. Furthermore, Lebanese physicians should adopt a more multidisciplinary approach when managing couple infertility.
Electricity load forecasting: a systematic review
Authors: Nti Isaac Kofi , Teimeh Moses , Nyarko-Boateng Owusu , Adekoya Adebayo Felix 
Published: September 2020

AbstractThe economic growth of every nation is highly related to its electricity infrastructure, network, and availability since electricity has become the central part of everyday life in this modern world. Hence, the global demand for electricity for residential and commercial purposes has seen an incredible increase. On the other side, electricity prices keep fluctuating over the past years and not mentioning the inadequacy in electricity generation to meet global demand. As a solution to this, numerous studies aimed at estimating future electrical energy demand for residential and commercial purposes to enable electricity generators, distributors, and suppliers to plan effectively ahead and promote energy conservation among the users. Notwithstanding, load forecasting is one of the major problems facing the power industry since the inception of electric power. The current study tried to undertake a systematic and critical review of about seventy-seven (77) relevant previous works reported in academic journals over nine years (2010–2020) in electricity demand forecasting. Specifically, attention was given to the following themes: (i) The forecasting algorithms used and their fitting ability in this field, (ii) the theories and factors affecting electricity consumption and the origin of research work, (iii) the relevant accuracy and error metrics applied in electricity load forecasting, and (iv) the forecasting period. The results revealed that 90% out of the top nine models used in electricity forecasting was artificial intelligence based, with artificial neural network (ANN) representing 28%. In this scope, ANN models were primarily used for short-term electricity forecasting where electrical energy consumption patterns are complicated. Concerning the accuracy metrics used, it was observed that root-mean-square error (RMSE) (38%) was the most used error metric among electricity forecasters, followed by mean absolute percentage error MAPE (35%). The study further revealed that 50% of electricity demand forecasting was based on weather and economic parameters, 8.33% on household lifestyle, 38.33% on historical energy consumption, and 3.33% on stock indices. Finally, we recap the challenges and opportunities for further research in electricity load forecasting locally and globally.
Management of postoperative fecal incontinence by pediatric surgeons in Nigeria: a pilot study
Authors: Lawal Taiwo A. 
Published: September 2020

Abstract
Background
Fecal incontinence is a challenging problem in pediatric surgical practice as it occurs in 25 to 50% of patients who have undergone surgery for anorectal malformation and in 5 to 23% after transanal pull-through for Hirschsprung disease. Fecal incontinence impacts on the quality of life of patients; hence, it is important that optimum management is instituted. The management of fecal incontinence in children in sub-Saharan Africa is largely unreported. The study, therefore, evaluated the management practices regarding fecal incontinence by pediatric surgeons in Nigeria.

Results
A total of 37 pediatric surgeons participated in the cross-sectional pilot study. The mean length of practice as specialists was 9.7 (± 7.8) years. The majority, 33 (89.2%), were males; 23 (62.2%) were ≤ 45 years of age, and 14 (37.8%) had practiced as consultant pediatric surgeons for ≥ 10 years.
When presented with a patient with anorectal malformation and recto-bladder neck fistula or Hirschsprung disease who developed fecal incontinence after surgery, 25 (67.6%) and 22 (59.5%), respectively, will combine modalities in managing the patient. Bowel management (81.1% and 83.8% respectively) was the most commonly selected option of managing postoperative fecal incontinence. Other options selected for the management of postoperative fecal incontinence were as follows: examination under anesthesia (43.2% and 37.8%), constipating diet (43.2% and 35.1%), re-operation (24.3% and 27.0%), and diverting colostomy (21.6% and 16.2%) for anorectal malformation and Hirschsprung disease respectively. There were no statistically significant associations between the length of practice as specialist pediatric surgeons and the selection of single vs. multiple treatment options for a patient with fecal incontinence after surgery either for anorectal malformation or Hirschsprung disease.

Conclusions
A combination of modalities will be adopted by at least 60% of pediatric surgeons in Nigeria to manage postoperative pediatric fecal incontinence with bowel management favored by over 80% of specialists surveyed.
Efficacy of physical activities on children with juvenile idiopathic arthritis: a randomized controlled trial
Authors: Ibrahim Mohamed Bedier , Labib Mahmoud , Khozamy Hamed , Badawy Wanees Mohamed 
Published: September 2020

Abstract
Background
Juvenile idiopathic arthritis (JIA) is one of the serious chronic rheumatic disorders in children and adolescents which results in less physical activities and restlessness hours than their peer. The study aims to assess the efficacy of physical fitness training exercises on aerobic capacity and muscular strength of children with JIA. Sixty-five children with JIA were included in the study, out of a total of 70 children who were screened for eligibility. Children were randomized to a control group (n = 32) who received hot packs, transcutaneous electrical nerve stimulation (TENS), and strengthening exercises, or a study group (n = 33) who received a physical fitness training program (hydrotherapy pool exercises, bicycle ergometer, and treadmill apparatus) in addition to what had been given to the control group. Both groups were engaged in a training program for 12 consecutive weeks for three times per week. Evaluation was done pre- and post-interventions included: peak oxygen uptake (Vo2 peak) during an incremental treadmill test and muscle strength assessed by isokinetic dynamometer.

Results
The current study showed that there were significant differences between pre- and post-interventions in both groups (P < 0.05). Comparing the two groups, there were statistically significant differences between children in both groups in favor of the study group (P < 0.05).

Conclusions
Physical fitness exercise training resulted in improved aerobic capacity and muscle strength of children with JIA. The obtained results suggested that children with arthritis could participate in formal exercise testing and structural physical fitness program.

Trial registration
PACTR, PACTR201907504136763. Registered on May 21, 2019. Retrospectively registered, https://pactr.samrc.ac.za/TrialDisplay.aspx?TrialID = 8150.
Role of imprint cytology in thoracic endoscopy suite
Authors: Hantera Mohammed Elsaid , Ganna Salwa Atef , Elsaka Ayman Mohamed , El-Lawaty Walaa Mowafy 
Published: September 2020

AbstractBackgroundFiberoptic bronchoscopy and medical thoracoscopy are basic interventional modalities for the diagnosis of a wide variety of pleuropulmonary diseases. In some cases, we need fast and accurate results for decision-making. We aimed to evaluate the diagnostic accuracy of imprint cytology and its added value to the pulmonologist.ResultsMultiple biopsies were taken from 54 patients included 31 patients with lung masses subjected to fiberoptic bronchoscopy and 23 patients with undiagnosed exudative pleural effusion subjected to medical thoracoscopy. Imprint cytology was done to all biopsies which are later examined histopathologically. Regarding fiberoptic bronchoscopy biopsies, the sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy of imprint cytology were 93.33, 100, 100, 33.33, and 93.55%, respectively. While in medical thoracoscopy biopsies, the sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy of imprint cytology were 94.74, 100, 100, 80, and 95.65%, respectively.ConclusionImprint cytology is an easy, rapid, and reliable method that has a high sensitivity and specificity in the diagnosis of lung and pleural malignancies compared with histopathology.
Continuous Versus 1-Year Fixed-Duration Nivolumab in Previously Treated Advanced Non–Small-Cell Lung Cancer: CheckMate 153
Authors: Waterhouse David M. , Garon Edward B. , Chandler Jason , McCleod Michael , Hussein Maen , Jotte Robert , Horn Leora , Daniel Davey B. , Keogh George , Creelan Ben , Einhorn Lawrence H. , Baker Justin , Kasbari Samer , Nikolinakos Petros , Babu Sunil , Couture Felix , Leighl Natasha B. , Reynolds Craig , Blumenschein George , Gunuganti Vijay , Li Ang , Aanur Nivedita , Spigel David R. 
Published: September 2020

PURPOSE Limited data exist on the optimal duration of immunotherapy, including for non–small-cell lung cancer (NSCLC). We present an exploratory analysis of CheckMate 153, a largely community-based phase IIIb/IV study, to evaluate the impact of 1-year fixed-duration versus continuous therapy on the efficacy and safety of nivolumab. METHODS Patients with previously treated advanced NSCLC received nivolumab monotherapy (3 mg/kg every 2 weeks). Those still receiving treatment at 1 year, including patients perceived to be deriving benefit despite radiographic progression, were randomly assigned to continue nivolumab until disease progression or unacceptable toxicity or to stop nivolumab with the option of on-study retreatment after disease progression (1-year fixed duration). RESULTS Of 1,428 patients treated, 252 were randomly assigned to continuous (n = 127) or 1-year fixed-duration (n = 125) treatment (intent-to-treat [ITT] population). Of these, 89 and 85 patients in the continuous and 1-year fixed-duration arms, respectively, had not progressed (progression-free survival [PFS] population). With minimum post–random assignment follow-up of 13.5 months, median PFS was longer with continuous versus 1-year fixed-duration treatment (PFS population: 24.7 months v 9.4 months; hazard ratio [HR], 0.56 [95% CI, 0.37 to 0.84]). Median overall survival from random assignment was longer with continuous versus 1-year fixed-duration treatment in the PFS (not reached v 32.5 months; HR, 0.61 [95% CI, 0.37 to 0.99]) and ITT (not reached v 28.8 months; HR, 0.62 [95% CI, 0.42 to 0.92]) populations. Few new-onset treatment-related adverse events occurred. No new safety signals were identified. CONCLUSION To our knowledge, these findings from an exploratory analysis represent the first randomized data on continuous versus fixed-duration immunotherapy in previously treated advanced NSCLC and suggest that continuing nivolumab beyond 1 year improves outcomes.
Association between blood pressure, race, ethnicity and likelihood of admission to the hospital from United States emergency departments – A cross sectional study
Authors: Kue Jessie , Meurer William 
Published: September 2020

Background: The emergency department (ED) has emerged as the primary portal for entry to the hospital for most patients with health care problems, including hypertension. Hypertension is the most important risk factor for heart disease. Disparities may exist in access to hospitalization across race/ethnicity. Our objective was to estimate how the likelihood of hospital admission based on blood pressure (BP) was modified by race/ethnicity. Methods: We used data from the 2014 National Hospital Ambulatory Medical Care Survey, a representative sample of non-federal, U.S. emergency department visits. We plotted probability of admission by blood pressure stratified by race/ethnicity to assess for a linear relationship. We then fit logistic regression models that adjusted for other potential confounders including patient-, visit-, and hospital-level factors. All analyses were conducted with relevant SURVEY functions in SAS to account for design. Results: Just over 21,000 visits were included in the study, representing approximately 1.4 million U.S. ED visits. We included the range of systolic blood pressure from 110 to 180 mmHg based on the linear relationship with probability of admission. We found the odds ratio for admission was 1.11 [95% CI: (1.06, 1.18)] for each 10 mmHg rise in systolic blood pressure in the unadjusted analysis. In the final adjusted model accounting for confounders, we found that the relationship between BP and admission was no longer significant 0.96 [0.91 to 1.01]. Whites were substantially more likely to be admitted compared to Blacks and Hispanics at odds ratio 1.5 [1.2 to 2]. Conclusions: The relationship between BP and hospital admission is complicated. Blacks and Hispanics appear less likely to be admitted to the hospital from the ED at a given level of blood pressure even after accounting for triage severity, and other individual and hospital level factors. Further research is needed to better understand this disparity.
An assessment of the extent to which the contents of PROSPERO records meet the systematic review protocol reporting items in PRISMA-P
Authors: Booth Alison , Mitchell Alex S. , Mott Andrew , James Sophie , Cockayne Sarah , Gascoyne Samantha , McDaid Catriona 
Published: September 2020

Background: PROSPERO is an international prospective register for systematic review protocols. Many of the registrations are the only available source of information about planned methods. This study investigated the extent to which records in PROSPERO contained the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols (PRISMA-P). Methods: A random sample of 439 single entry PROSPERO records of reviews of health interventions registered in 2018 was identified. Using a piloted list of 19 PRISMA-P items, divided into 63 elements, two researchers independently assessed the registration records. Where the information was present or not applicable to the review, a score of 1 was assigned. Overall scores were calculated and comparisons made by stage of review at registration, whether or not a meta-analysis was planned and whether or not funding/sponsorship was reported. Results: Some key methodological details, such as eligibility criteria, were relatively frequently reported, but much of the information recommended in PRISMA-P was not stated in PROSPERO registrations. Considering the 19 items, the mean score was 4.8 (SD 1.8; median 4; range 2-11) and across all the assessed records only 25% (2081/8227) of the items were scored as reported. Considering the 63 elements, the mean score was 33.4 (SD 5.8; median 33; range 18-47) and overall, 53% (14,469/27,279) of the elements were assessed as reported. Reporting was more frequent for items required in PROSPERO than optional items. The planned comparisons showed no meaningful differences between groups. Conclusions: PROSPERO provides reviewers with the opportunity to be transparent in their planned methods and demonstrate efforts to reduce bias. However, where the PROSPERO record is the only available source of a priori reporting, there is a significant shortfall in the items reported, compared to those recommended. This presents challenges in interpretation for those wishing to assess the validity of the final review.
Coping strategies of students for anxiety during the COVID-19 pandemic in China: a cross-sectional study
Authors: Nurunnabi Mohammad , Hossain Syed Far Abid Hossain , Chinna Karuthan , Sundarasen Sheela , Khoshaim Heba Bakr , Kamaludin Kamilah , Baloch Gul Mohammad , Sukayt Areej , Shan Xu 
Published: September 2020

Background: COVID-19 has severely affected university students everywhere in the world. Due to fear of infection, government and local authorities in China immediately closed academic institutions and tried to find survival techniques to cope with market turbulence. COVID-19 was present in China at the end of 2019. However, little attention has been paid by researchers to coping strategies during the COVID-19 pandemic, and few measures were taken to assess the coping strategies of university students, specifically following the closure of their institutions. To address this gap, this study attempted to discover the coping strategies of Chinese students during the COVID-19 pandemic in China. Methods: We conducted an online survey using a semi-structured questionnaire with a simple random sampling technique and received 559 responses. The survey questions captured information about students’ lives during the COVID-19 outbreak, actions to control anxiety, and what students care about during the pandemic. The associations between coping strategies used and levels of anxiety were tested using analysis of variance (ANOVA) procedures. SPSS Statistics v27 was used for statistical analysis in this study. Results: The university students reported that coping strategies and survival techniques were required due to high levels of anxiety and psychological pressure during the COVID-19 pandemic. Most of the respondents reported the prompt closure of their academic institutions due to COVID-19. Psychological concerns, such as lack of sleep, emotional support, mental support and social appeal, were also reported. Conclusions: This is one of the very first studies on coping strategies for anxiety in China. The study reveals that university students employ a number of coping strategies in relation to COVID-19, but also suggests a need to strengthen such strategies in this population. However, the study was limited to a small number of provinces in China, which may affect the generalizability of the research.