Miracle-dz/UniFAR-FTUs huggingface dataset:
WORK IN SCHOOLS IN THE PANDEMIC - A PROPOSAL OF A METHOD FOR CHILDREN TESTING ON COVID-19 VIRUS

In the conditions of the pandemic caused by the Covid-19 virus, the work of schools became directly conditioned by the possibility of students and teachers to attend classes, both due to their poor health condition and due to the possibility of transmitting the infection. The main focus of this work is the determination of the ability of children to transmit the infection, as well as to point out the omissions in testing school-age children, having in mind the need to create a more realistic picture of the number of children infected with the Coronavirus. The absence of symptoms or relatively mild symptoms caused by the Covid-19 virus in infected children under the age of 18 have led most health workers to conclude that the virus is much less prevalent in this population, and that children are not the primary carriers of the infection. However, although it may be true, it is premature to make such a conclusion, because it has not been supported by appropriate tests. Most of the research done so far has been based on a study of children in whom the Covid-19 virus has already been confirmed or suspected. However, the complete enigma remains the population of children in schools who has not shown the classic symptoms that are recognizable for this virus, or do not show any symptoms. Respiratory infection is just one of the symptoms that can be most easily noticed, which is characterized by the Covid-19 virus. However, this virus can attack practically any organ in the body, and it does not have to show any visible manifestation at the moment that would indicate the existence of this virus in a child. Having all this in mind, as well as the fact that the number of asymptomatic cases in schools is unknown, the conclusion of this paper is that targeted testing of children in schools should be performed, regardless of the presence of symptoms or their absence. This can be done in the quickest and easiest way by the method of a random selection of a school in a city and by testing all children in the observed school for the presence of the Covid-19 virus. If it turns out that the percentage of infected students is higher than expected, the same testing procedure should be repeated in other schools in a particular city. Initially, all larger urban areas should conduct such initial testing, and the test results will indicate whether there is a need to continue with this type of testing in smaller urban areas also, ie to expand the scope of testing on the basis of application of this methodology. This approach, basically based on the principle of random sampling, can in a relatively fast and efficient way provide a more realistic picture of the presence of the Covid-19 virus in schools and the potential for students to further spread the virus to households and other environments.
Retracted: Two-Player Entangled Games are NP-Hard

The article, published on June 4th, 2018 in the CCC 2018 proceedings, has been retracted by agreement between the authors, the editor(s), and the publisher Schloss Dagstuhl / LIPIcs. The retraction has been agreed due to an error in the proof of the main result. This error is carried over from an error in the referenced paper “Three-player entangled XOR games are NP-hard to approximate” by Thomas Vidick (SICOMP ’16). That paper was used in an essential way to obtain the present result, and the error cannot be addressed through an erratum. See Retraction Notice on page 19. We show that it is NP -hard to approximate, to within an additive constant, the maximum success probability of players sharing quantum entanglement in a two-player game with classical questions of logarithmic length and classical answers of constant length. As a corollary, the inclusion NEXP ⊆ MIP ∗ , ﬁrst shown by Ito and Vidick (FOCS’12) with three provers, holds with two provers only. The proof is based on a simpler, improved analysis of the low-degree test of Raz and Safra (STOC’97) against two entangled provers.
Depression in Ontario: What Predicts a First Mental Health Re-Hospitalization?

The purpose of this analysis was to identify various factors related to whether or not a person was readmitted following a first-ever stay in hospital for the treatment of depression. To do this, the analysis examined various socio-demographic, treatment, clinical and discharge environment characteristics and assessed their relationship to hospital readmission during various time periods following the first admission.
Productive performance of ultra-narrow groove cotton in acid soils in Colombia

Menegua is the first variety of cotton specifically for acid soils in Colombia with recommendation, in addition to including in the corn-soybean rotation system, as a strategy to expand the cotton frontier in the sub-region ‘altillanura plana’. However, its agronomic management in relation to planting distance requires adjustment as a strategy to improve the competitiveness of cotton in terms of yield, quality and costs. The objective of this study was to determine the effect of the ultranarrow groove compared to the conventional one in the productive performance and quality of cotton under conditions of an oxisol acid soil in the Colombian altillanura plana. An experiment was carried out in Puerto Gaitan-Meta, during the 2015B agricultural cycle, a randomized complete block design was used with two treatments corresponding to distances between rows in cm): T1 = 0.4 and T2 = 0.8 and four repetitions; the Menegua variety with specific adaptation for acid soils was used and production and fiber quality variables were determined. The change of the conventional distance from 80 cm to 40 cm caused an increase of 13.1% in the height of the plant, a 29.2% reduction in the number of specks plant and a decrease of 23.1% and 23.9% in the yield of seed cotton and yield of fiber cotton, respectively, the percentage of fiber extraction and its quality was not affected. It is concluded that in the subregion ‘altillanura plana’ on an oxisol acid soil the ultra-narrow groove compared to the conventional affect the Menegua variety in a negative way the productive behavior without detriment of the quality of the fiber in cotton.
Effects of Drying on Stability of Nutrients in Banana Pseudostem in Species Musa balbisiana and Musa acuminata

Banana pseudostem is known to be beneficial to health, but so far is rarely used by the food industry. Pseudostems from two banana species (Musa balbisiana and Musa acuminata) were dried in a cabinet dryer. Four drying treatments were chosen for Musa balbisiana: 40C without (BP40) and with 3 min blanching at 70C (BP40B), 50C without (BP50) and with 3 min blanching at 70C (BP50B). BP50 resulted in lowest moisture content (4.4%), highest drying efficiency, ash (14.0%), total mineral content (6579.3 mg/100 g) and whitest colour. There was no significant difference (P > 0.05) between treatments in protein, fat and carbohydrate contents. Since BP50 was the most efficient treatment, it was also selected for drying of Musa acuminata. Musa acuminata pseudostem had higher moisture, protein, ash and mineral content but no significant difference (P > 0.05) was observed in the fat and carbohydrate values between the two banana species. Practical Applications This paper reveals the most appropriate processing steps (blanching and drying) for pseudostem of two main banana species. Bananas are among the most widely grown crops in the tropical and sub-tropical areas of the world. However, the pseudostem, although consumed in a number of countries, has so far not been considered as a valuable raw material for human nutrition. This paper describes the effects of blanching and drying conditions on the nutritionally useful components for human population.
Arti cial Intelligence-Assisted Reduction in Patients’ Waiting Time for Outpatient Procedures: A Matched Case–Control Study

Xiaoqing Li School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China Dan Tian Shanghai Children’s Medical Center Weihua Li Shanghai Children’s Medical Center Bin Dong Shanghai Children’s Medical Center Hansong Wang Shanghai Children’s Medical Center Jiajun Yuan Shanghai Children’s Medical Center Biru Li Shanghai Children’s Medical Center Lei Shi Hangzhou YITU Healthcare Technology Co., Ltd Xulin Lin Hangzhou YITU Healthcare Technology Co., Ltd Liebin Zhao Shanghai Children’s Medical Center Shijian Liu (  liushijian@scmc.com.cn ) Shanghai Children's Medical Center a liated to Shanghai Jiao Tong University School of Medicine
Bank Payout Policy, Performance, and Insider Trading

We provide an extensive analysis of the payout policy of U.S. banks around the financial crisis. We find no evidence that banks systematically used their payout policy to transfer wealth to shareholders in anticipation of future problems. Banks hardly reduced dividends until 2009, but significantly reduced share repurchases in 2008. Using established models that relate dividends to fundamentals, dividends in 2008 do not appear excessive. Banks that reduce dividends in 2008 do worse in 2009 than other banks. Insiders of banks that do not reduce dividends in 2008 do not sell more shares than before the crisis.
Effects of immunosuppressive therapy reduction and early post-infection graft function in kidney transplant recipients with COVID-19

Kidney transplant (KT) recipients with COVID-19 are at high risk of poor outcomes because of comorbidities and long-term immunosuppressive therapy (IST). There are little data on the effect of IST reduction and early graft function after COVID-19. We conducted a retrospective study on 45 consecutive KT recipients followed at the University Hospital of Modena who tested positive for COVID-19 by RT-PCR analysis. We detailed clinical management and outcomes of these patients. Median age of patients was 56.1 (interquartile range, [IQR] 47.3-61.1) years with a predominance of male (64.4%) and patients of Caucasian origin (91.1%). Kidney transplantation vintage was 10.1 (2.7-16) years, and more than half (55.6%) was on triple IST. Therapeutic management included antimetabolite (62.8%) and calcineurin inhibitor withdrawal (22.2%), and suspension of IST in severely ill patients. Of the 45 patients, 88.9% became symptomatic and 40% required hospitalization. Overall mortality accounted for 17.8% (n=8). There were no differences in outcomes between full- and reduced-dose IST at the end of follow-up. Overall, early graft function after COVID-19 showed a stable and unmodified kidney function in 95% of survivors. Risk factors for death were age (odds ratio [OR]: 1.19; 95% CI: 1.01-1.39), and years spent on immunosuppression (OR: 1.96; 95% CI: 0.38-10.03-4.9). One patient experienced symptomatic reinfection with COVID-19 after primary infection and anti-SARS-CoV-2 mRNA vaccine. COVID-19 impacted the graft and general survival of KT recipients. Short-term graft outcome after COVID-19 was favorable in most survivors. Age and transplantation vintage are independent predictors of death in our patients.
Serum Copeptin and Zinc-α2-glycoprotein Levels Are Novel Biomarkers of Tolvaptan Treatment in Decompensated Cirrhotic Patients with Ascites

Objective The efficacy of tolvaptan, an orally active vasopressin V2-receptor antagonist, has recently been reported in patients with massive ascites unresponsive to conventional diuretics. However, the effect of tolvaptan varies among patients. Recently, the prognostic role of the tolvaptan response in cases of decompensated liver cirrhosis (LC) has been attracting increasing attention. Using serum copeptin (vasopressin precursor), zinc-α2-glycoprotein (ZAG), cystatin C (renal biomarker), neutrophil gelatinase-associated lipocalin (NGAL) and liver-type fatty acid-binding protein (L-FABP), we explored which factors portend a good response to tolvaptan in LC patients with ascites. Methods We enrolled 113 LC patients and divided them into the tolvaptan treatment group and non-treatment group. Tolvaptan (3.75 or 7.5 mg/day) was administrated to 38 LC patients with ascites, and a follow-up assessment was performed after a 7-day tolvaptan treatment regimen. Results We determined the predictive ability for kidney and/or liver damage of serum copeptin, ZAG, cystatin C, NGAL and L-FABP levels in all patients. After 7-day tolvaptan treatment, 19 patients had lost more than 1.5 kg of body weight (Responders), while 19 showed no marked change in their body weight (Non-responders). Basal blood urea nitrogen (BUN) (p=0.0014), serum copeptin (p=0.0265) and serum ZAG levels (p=0.0142) were significantly higher in the Non-responders than in the Responders. BUN (odds ratio 7.43, p=0.0306), copeptin (odds ratio 9.12, p=0.0136) and ZAG (odds ratio 7.43, p=0.0306) were determined to be predictive factors of drug responsiveness using a multivariate logistic regression analysis. Conclusion Serum BUN, copeptin and ZAG levels predict the patient response to tolvaptan, even when measured prior to treatment.
Impact of two disinfectants on detachment of Enterococcus faecalis from polythene in aquatic microcosm

After cell adhesion processes in microcosm, the impact of sodium hypochlorite (NaOCl) and hydrogen peroxide (H 2 O 2 ) on the detachment of Enterococcus faecalis from polythene fragments immersed in water under stationary and dynamic conditions was assessed. The abundance of planktonic cells was also evaluated. The density of E. faecalis adhered in absence of disinfectant fluctuated between 2 and 4 units (Log CFU/cm 2 ). After living in disinfected water, the density of E. faecalis remained adhered to polythene sometimes reached 2 units (Log CFU/Cm 2 ) . This highest abundance of cells remained adhered was recorded with cells coming from the lag, exponential and stationary growth phases in water treated with 0.5‰ NaOCl. In H 2 O 2 disinfected water, the highest value was recorded at all cells growth phases with 5‰ H 2 O 2 concentration. Adhered E. faecalis cells have been sometimes completely or partially decimated respectively by NaOCl and H 2 O 2 treated water. Considering separately each experimental condition, it was noted that increasing the concentration of disinfectant caused a significant decrease (P≤0.01) in abundance of cells stay adhered after living in water disinfected by the two disinfectants. Changes in disinfectant concentrations in different experimental conditions had an impact on the detachment of E. faecalis cells from the substrates.
The Relationship between Risk Disclosure and Firm Performance: Empirical Evidence from Saudi Arabia

This study aims to examine the moderating effect of risk management disclosure on the relationship between risk disclosure and firm performance as an attempt to contribute to the increasing body of literature concerning risk management disclosure by extracting new evidence from a fast-growing economic environment in Saudi Arabia. We used content analysis of cross-sectional data extracted from the audited annual reports of 72 non-financial Saudi listed firms in various non-financial sectors for the year 2018. Research hypotheses have been tested by using two robust statistical models (MM-Estimator Model and Robust Regression Model). The findings showed no evidence that risk disclosure and risk management disclosure matter concerning firm performance measured by the average of earning per share EPS when they are examined individually. However, when the moderating effect of risk management disclosure is considered, the results become significantly positive. These outcomes could explain one of the main reasons of the different and dissimilar findings of previous studies, which investigate the impact of risk disclosure and risk management disclosure on firm performance individually. Also, the results of this paper will help practitioners to reconsider the interacting relations of their risk disclosure and risk management disclosure actions on firm’s performance.
A survey on dynamic common pool resources : theory and experiment

This paper provides a survey on the literature using dynamic games to analyse the decision-making processes of common pool resources (CPRs) users. The purpose of this paper is to shed some light on the application of dynamic games in laboratory experiments. In this way, we focus on articles presenting both a theoretical model with laboratory experiments, by making a distinction between discrete time and continuous time. Therefore, we put a particular attention to subjects’ classification according to their observed behavior, the different channels by which cooperation can occur and the econometric tools used to analyse experimental data.
The impact of spatiotemporal structure of rainfall on flood frequency over a small urban watershed: an approach coupling stochastic storm transposition and hydrologic modeling

Abstract. The role of rainfall space-time structure, as well as its complex interactions with land surface properties, in flood response remains an open research issue. This study contributes to this understanding, specifically in small (< 15 km2) urban watersheds. Using a flood frequency analysis framework that combines stochastic storm transposition-based rainfall scenarios with the physically-based distributed GSSHA model, we examine the role of rainfall spatial and temporal variability in flood frequency across drainage scales in the highly-urbanized Dead Run watershed (14.3 km2) outside of Baltimore, Maryland, USA. The results show the complexities of flood response within several subwatersheds for both short (< 50 years) and long (> 100 years) rainfall return periods. The impact of impervious area on flood response decreases with increasing rainfall return period. For extreme storms, the maximum discharge is closely linked to the spatial structure of rainfall, especially storm core spatial coverage. The spatial heterogeneity of rainfall increases flood peak magnitudes by 50 % on average at the watershed outlet and its subwatersheds for both small and large return periods. The results imply that commonly-made assumption of spatially uniform rainfall in urban flood frequency modeling is problematic even for relatively small basin scales.
Healthcare Practitioner Education, Implementation of Clinical Guidelines, and Narcotic Use in the Surgical Patient

Background: The prevalence of opioid abuse in the United States is high and associated with a surge in mental illness, emergency department visits, hospitalizations, readmissions after discharge, and unintended overdose deaths. Previous research identifies orthopedics as a significant contributor to the crisis, most notably total knee replacements. Inconsistencies with provider education throughout the US may be contributing to the opioid epidemic. Objective: To explore the correlation between provider knowledge and decreased patient-reported use of opioids and to determine knowledge gaps for development of provider education. Clinical Question: Does increased provider knowledge decrease patient-reported use of opioids? Method: A retrospective, cross-sectional descriptive design was used for this quality improvement project. Lewin’s Theory of Change was used to guide the implementation. Use of the KnowPain-12 survey to assess provider knowledge. Patient-reported opioid use completed via FORCE-Therapeutics. Results: Ten providers participated in the project. One hundred percent identified as male, 80% were above the age of 45 years of age, 50% practiced as an orthopedic surgeon for more than 20 years, and 80% stated they received, participated, or taught pain medication education in the previous five years. A total of 1482 patient records were reviewed. Records were separated into two groups: total hip and total knee surgical replacements, there was no significant difference between laterality of procedure, age, or sex between the patient groups. Higher provider knowledge was moderately positively PROVIDER EDUCATION AND NARCOTICS 3 correlated (0.56) with overall opioid consumption postoperative week zero through six in total knee arthroplasty patients and weakly positively correlated (0.24) in total hip arthroplasty. However, at various time points throughout postoperative day zero through six, opioid consumption was negatively correlated with provider knowledge. Additional findings indicate higher provider knowledge was negatively correlated with NSAIDs, anti-inflammatories, and VAS pain. Conclusion: Overall, the results did not confirm a clear consistent correlation between patient-reported opioid use and provider-specific knowledge. Further research is recommended with a larger sample size or providers and patients.
ON EXISTENCE AND UNIQUENESS OF ASYMPTOTIC #-SOLITON-LIKE SOLUTIONS OF THE NONLINEAR KLEIN-GORDON EQUATION

We are interested in solutions of the nonlinear Klein-Gordon equation (NLKG) in R1+3, 3 ≥ 1, which behave as a soliton or a sum of solitons in large time. In the spirit of other articles focusing on the supercritical generalized Korteweg-de Vries equations and on the nonlinear Schrödinger equations, we obtain an # -parameter family of solutions of (NLKG) which converges exponentially fast to a sum of # given (unstable) solitons. For # = 1, this family completely describes the set of solutions converging to the soliton considered; for # ≥ 2, we prove uniqueness in a class with explicit algebraic rate of convergence.
“Social support key to cash in transit guards’ psychological wellbeing”

Due to large amounts of cash in transit, security vehicles have become preferred targets for armed robberies. Cash-in-transit guards have to work under dangerous and life-threatening conditions, as transporting goods, particularly cash, has become an increasingly risky task in South Africa. The primary objective of this study was to investigate the potential valuable impact of social support on employees’ susceptibility to job burnout. Cash in transit employees may suffer from burnout due to a prolonged response to occupational stressors and a lack of social support. Social support may serve as a buffer to occupational stress. This study argues that the level of burnout is strongly influenced by a lack of social support and a stressful work environment. A voluntary sample of cash in transit security guards ( n = 65) was obtained from two private security companies in the Eastern Cape Province of South Africa. A self-administered questionnaire consisting of validated scales was distributed amongst employees. Inferential statistics suggest that social support plays a potentially valuable role in reducing cash in transit employees’ susceptibility to job burnout. Furthermore, the results suggest that a dangerous, unsafe and stressful work environment may increase the risk of job burnout among cash in transit employees, and certain organizational interventions are necessary to minimize the effect thereof.
Effectiveness of inundative releases of Anthocoris nemoralis (Hemiptera: Anthocoridae) in controlling the olive psyllid Euphyllura olivina (Hemiptera: Psyllidae)

This study investigated the effectiveness of field releases of nymphs of Anthocoris nemoralis (F.) (Hemiptera: Anthocoridae) in controlling the olive psyllid, Euphyllura olivina Costa (Hemiptera: Psyllidae). Field trials were conducted in two successive years (2014 and 2015) in two organic olive orchards located in the region of Sfax (Tunisia) using two treatments: low (release of 10 A. nemoralis nymphs/tree) and high (release of 40 A. nemoralis nymphs/tree) applied two times, the first on March 3 and second on March 17. In both olive orchards, the high treatment was the most effective in controlling the increase of E. olivina in the spring. The A. nemoralis population grew gradually and reached a single peak towards the end of April. In control and low treatment plots, despite the significant increase in predator populations, psylla abundance was not controlled. After the second release, however, in high treatment plots a reduction in psyllid density was recorded. An expected effect of the A. nemoralis releases was a reduced parasitic activity of Psyllaephagus euphyllurae (Masi) (Hymenoptera: Encyrtidae).