Miracle-dz/UniFAR-FTUs huggingface dataset:
Numerical Methods for Linear Diffusion Equations in the Presence of an Interface

We consider numerical methods for linear parabolic equations in one spatial dimension having piecewise constant diffusion coefficients defined by a one parameter family of interface conditions at the discontinuity. We construct immersed interface finite element methods for an alternative formulation of the original deterministic diffusion problem in which the interface condition is recast as a natural condition on the interfacial flux for which the given operator is self adjoint. An Euler-Maruyama method is developed for the stochastic differential equation corresponding to the alternative divergence formulation of the equation having a discontinuous coefficient and a one-parameter family of interface conditions. We then prove convergence estimates for the Euler scheme. The main goal is to develop numerical schemes that can accommodate specification of any one of the possible interface conditions, and to illustrate the implementation for each of the deterministic and stochastic formulations, respectively. The issues pertaining to speed-ups of the numerical schemes are left to future work.
The potentially hazardous asteroid 2007CA19 as the parent of the η-Virginids meteoroid stream

The orbit of the potentially hazardous near-Earth asteroid 2007CA19 is classified as comet-like according to the Tisserand parameter with a value of T j = 2.8, therefore the object can be empirically considered as an extinct or dormant Jupiter-family comet. If 2007CA19 is really a former comet, it could have formed a meteoroid stream in the past in the period of its cometary activity. Investigation of the asteroid’s orbital evolution shows that 2007CA19 is a quadruple-crosser of the Earth’s orbit. Consequently, the meteoroid stream that is supposedly associated with the object can produce four meteor showers if, as expected, the perihelia arguments of the meteoroids are very distributed over the orbit. Theoretical radiants of the predicted showers were calculated using elements of the 2007CA19 osculating orbit that correspond to the positions of intersections with the Earth’s orbit. A search for the predicted night-time showers has shown that the Northern and Southern η-Virginids can be associated to 2007CA19. Using the MOID IAU database, we identify two other daytime showers that can be associated with this asteroid. Thus, we confirm that 2007CA19 has an associated meteoroid stream that produces four active meteor showers in the Earth’s atmosphere. This relationship supports the dynamical classification of the object and also points to the possibility of its cometary origin.
Pancreatic Divisum Causing Recurrent Pancreatitis in an 8-Year-Old Child

of fusion between the two ducts; in Type 2, the ventral duct is completely absent; and in Type 3 (incomplete PD), wherein there is a small communication between the two ducts. [4] The inadequate drainage of the pancreas through the small dorsal duct through minor papilla results in the spectrum of diseases – relapsing acute pancreatitis, chronic pancreatitis, and pancreatic pain. [2] However, only 5% of the population becomes symptomatic for reasons unknown. [3]
Correlation of Plasma Renin Activity Values and Resistive Index on Ultrasound Doppler with Findings of Renal Dynamic Scan in Patients with the Society of Fetal Ultrasound grades 3 and 4 Unilateral Hydronephrosis

Background: Renal dynamic scans (RDS) despite being considered the gold standard for the diagnosis of pelvic ureteric junction obstruction (PUJO), fail to help resolve the dilemma about management issues in many patients. Multiple invasive and noninvasive methods are being studied to help the decision-making in these patients. We did this study to find correlation of plasma renin activity (PRA) values and resistive index (RI) on Doppler ultrasound with findings of RDS in patients with the Society for Fetal Urology (SFU) Grades 3 and 4 unilateral hydronephrosis (HDN) and also to determine the cut-off values of PRA and RI that could categorically acknowledge the success of pyeloplasty. Methodology: Twenty patients with SFU Grades 3 and 4 unilateral HDN due to PUJO were enrolled. Demographic details were recorded. All underwent Anderson-Hynes dismembered pyeloplasty. Based on the follow-up RDS scans, these patients could fall into one of three categories- improved (successful), status quo, or deteriorated (unsuccessful). Outcomes were compared based on RDS (split renal function [SRF]), ultrasonography, and Doppler findings were done at 3 months of postoperative period. Results: Follow up period was 3 months after Pyeloplasty. Seventeen patients had successful outcomes based on RDS findings, 12 had improvement in SRF (>5%), and 6 had normal drainage curves (t-t1/2 <10 min). Three patients had indeterminate curves (t-t1/2 between 10 to 20 min). Four had improvement on both the criteria, i.e., SRF and drainage curves. Among the three patients who showed no improvement in RDS, two were in “status quo” category and one patient showed deterioration. Seventeen patients also showed improvement in PRA and RI. No significant correlation between PRA and RI with SRF could be established. However, PRA was found to have good concordance with RDS (90%). Conclusion: No significant correlation could be demonstrated between SRF and the respective values of PRA and RI. However, PRA could act as an adjunct to predict the early success of pyeloplasty in view of good concordance with RDS. A larger trial with bigger cohort of patients is required to confirm our contention.
Analysis the Effect of Job Strain on Nurses' Quality of Work-Life: A Mediating and Moderating Model

Background: One of the most important issues in all organizations is to improve performance of human resources to achieve goals. Therefore, it is necessary plans and solutions to reduce Job Strain (JS) and then increase Organizational Citizenship Behaviors (OCB), and Quality of Work-Life (QWL). The purpose of this study is to investigate the effect of JS on QWL with mediating role of OCB and moderator of employment status. Materials and Methods: This cross-sectional study was conducted on 300 nurses who were non-randomly voluntary selected among nurses working in seven educational hospitals in Ahvaz, Iran. Data were collected using demographic and occupational characteristics questionnaire and JS questionnaire with 12 items, OCB with 16 items & QWL with 26 items in the 5-point Likert scale. Data analysis was performed in SPSS22 using descriptive and inferential statistics, and structural equation modeling with SmartPLS3. Results: The results indicated the mean (SD) score of 49.56 (6.68) for JS (more than normal) and 58.84 (5.94) and 49.88 (7.69) for QWL and OCB, respectively. Spearman correlation coefficients show that JS has a negative relationship with QWL (r = -0.69, p < 0.001) and OCB (r = -0.54, p = 0.008). Also, nurses' employment status (Formal and Contractual) moderates the relationship between JS, QWL, and OCB. Conclusions: According to the results, job stress in nurses of Ahvaz hospitals was high and QWL was moderate (or less). Therefore, increased job stress leads to reduced QWL and OCBs of nurses. Also the employment Status and job security that it provides can modify this impact.
Multiple Local Maxima in Restricted Likelihoods and Posterior Distributions for Mixed Linear Models

Scattered reports of multiple maxima in posterior distributions or likelihoods for mixed linear models appear throughout the literature. Less scrutinised is the restricted likelihood, which is the posterior distribution for a specific prior distribution. This paper surveys existing literature and proposes a unifying framework for understanding multiple maxima. For those problems with covariance structures that are diagonalisable in a specific sense, the restricted likelihood can be viewed as a generalised linear model with gamma errors, identity link and a prior distribution on the error variance. The generalised linear model portion of the restricted likelihood can be made to conflict with the portion of the restricted likelihood that functions like a prior distribution on the error variance, giving two local maxima in the restricted likelihood. Applying in addition an explicit conjugate prior distribution to variance parameters permits a second local maximum in the marginal posterior distribution even if the likelihood contribution has a single maximum. Moreover, reparameterisation from variance to precision can change the posterior modality; the converse also is true. Modellers should beware of these potential pitfalls when selecting prior distributions or using peak‐finding algorithms to estimate parameters.
Correlation of Urinary Biomarkers (Interleukin-6, Transforming growth factor-β, E-Cadherin, and MCP-1) with Conventional Parameters of Disease Progression in Patients of Posterior Urethral Valves: A Comparative Analysis

Aims: Posterior urethral valves (PUV) are the leading cause of end-stage renal disease in boys. The study aimed to look at the ongoing renal damage and profibrotic activity by measuring the levels of Interleukin-6 (IL-6), Transforming growth factor-β (TGF-β), E-cadherin, and Monocyte Chemoattractant Protein-1 (MCP-1) and observing trends in subsequent follow-ups and at the same time correlating them with the established parameters of disease progression. Materials and Methods: This prospective study included 36 consecutive patients of PUV, managed over a period of 18 months. IL-6, TGF-β, E-cadherin, and MCP-1 were measured in urine samples at the time of admission, pre-fulguration and 3 months' and 9 months' post fulguration. The observed values were correlated with the conventional parameters used in clinical practice. Results: All the biomarkers showed statistically significant trends when these values were compared on admission, postoptimization and 3 months' and 9 months' postfulguration. None of the biomarkers showed a significant correlation with renal function tests. E-Cadherin and TGF-β showed a positive and a negative correlation with ultrasonography (USG) kidney, ureter, and bladder (KUB) respectively. E-Cadherin showed a positive correlation, whereas IL-6 and TGFβ showed negative correlation respectively with micturating cystourethrogram (MCUG). IL-6 showed statistically a significant negative correlation with dimercapto succinic acid (DMSA). MCP-1 did not show any significant correlation with USG KUB, MCUG and DMSA. Conclusion: This study concludes that E-Cadherin, IL-6, TGF-β can be promising urinary biomarkers for early detection of the ongoing renal damage in patients of PUV following valve fulguration. MCP-1 may have more complex interactions, with inflammatory markers; which warrants further research.
Independent and combined associations of depressive symptoms and sleep disturbance with chronic pain in community-dwelling older adults

Supplemental Digital Content is Available in the Text. The combination of depressive symptoms and sleep disturbance was positively associated with chronic pain, but there were no additive interactions in community-dwelling older adults. Abstract Introduction: There is limited evidence regarding whether depressive symptoms and sleep disturbance are independently or synergistically associated with chronic pain. Objectives: We investigated the independent and combined associations of depressive symptoms and sleep disturbance with chronic pain and its severity (and the additive interactions) in community-dwelling older adults. Methods: This cross-sectional study analyzed the data of 1374 individuals who were 65 to 75 year old, not in need of long-term care, and completed questionnaires assessing sociodemographic factors, depressive symptoms, sleep disturbance, and chronic pain. The severity of chronic pain was assessed based on pain intensity, pain distribution, and pain type. The participants' status of depressive symptoms and sleep disturbance were categorized in the following 4 groups: neither condition, depressive symptoms alone, sleep disturbance alone, and both conditions. Results: Among the 1374 participants, 849 (61.8%) had chronic pain. The multivariable-adjusted odds ratios and 95% confidence intervals of the presence of chronic pain in those with depressive symptoms alone, sleep disturbance alone, and both conditions were 1.40 (0.97–2.03), 1.98 (1.41–2.78), and 2.12 (1.39–2.23), respectively, compared with the neither-condition group. Similar associations were observed for severe chronic pain. However, there were no significant additive interactions. In addition, only sleep disturbance was significantly associated with chronic pain, after adjusting for depressive symptoms. Conclusions: Our analyses did not reveal a synergistic effect of depressive symptoms and sleep disturbance on chronic pain and its severity, suggesting that most of the effects of depressive symptoms on chronic pain may be mediated by sleep disturbance.
Management of Children and Adolescents with Wilson Disease and Neurological Worsening Following D–Penicillamine Therapy: A Single Centre Experience

Background: Most centers in developing countries prefer chelation therapy with D-penicillamine for the management of Wilson's disease (WD) because of its easy availability and affordability. Neurological worsening following treatment with D-penicillamine is not uncommon. However, there is a paucity of Indian data on the incidence of neurological worsening in children and adolescents with WD following chelation therapy. Our study objectives were to identify the prevalence of neurological worsening in children and adolescents with WD following chelation with D–penicillamine therapy and to describe the management options and outcomes in these patients. Materials and Methods: In this retrospective chart review, children and adolescents with an established diagnosis of WD from 2010 to 2020 were identified from the hospital electronic database. Among these patients, data of children and adolescents with neurological worsening following D–penicillamine therapy were extracted and analyzed. Results: Neurological worsening was observed in 27/122 (22.1%) children and adolescents with WD on chelation therapy with D-penicillamine. Fifteen patients with neurological worsening following D-penicillamine therapy were managed with zinc monotherapy. Four patients were managed with a combination therapy of zinc and trientine. Five patients were treated with trientine monotherapy. Re-challenging with D-penicillamine at a lower dose followed by a slow dose escalation was attempted in three patients. Gradual clinical and functional status improvement was observed in 24 cases while one patient succumbed to pneumonia. Conclusion: Children and adolescents with WD who had neurological worsening on D-penicillamine therapy may be managed with trientine. Zinc monotherapy with copper restricted diet was also found to be effective in non-affordable patients.
The effects of nutrition supplement on rehabilitation for patients with stroke: Analysis based on 16 randomized controlled trials

Background: Malnutrition is a relatively common and often unrecognized condition in stroke survivors, which may negatively affect functional recovery and survival. Though previous studies have indicated significant role of nutrition supplement for rehabilitation of patients with stroke, the results still remain controversy. Objective: The present analysis was designed to systematically review effective evidence of nutrition supplement on rehabilitation for patients with stroke. Methods: A systematic search of PubMed, EMBASE, the Cochrane Library, and Web of Science up to August 1, 2021 was performed to find relevant studies that analyzed the effect of nutrition supplement on rehabilitation of patients with stroke. The primary outcome was functional outcomes and activities of daily living (ADL). The secondary outcomes included disability, all-cause mortality, infections, pneumonia, walking ability, stroke recurrence, and laboratory results indicating nutrition status of patients. All statistical analyses were performed using standard statistical procedures with Review Manager 5.2. Results: Ultimately, 16 studies including 7547 patients were identified. Our pooled results found no significant difference in total, cognitive and motor FIM score between nutrition supplement and placebo groups, with pooled MDs of 7.64 (95% CI − 1.67 to 16.94; P = .11), 0.74 (95% CI − 1.33 to 2.81; P = .48), 1.11 (95% CI − 1.68 to 3.90; P = .44), respectively. However, our result showed that nutritional interventions had significant effect on ADL for patients with stroke (MD 3.26; 95% CI 0.59 to 5.93; P = .02). In addition, nutrition supplement reduced the incidence of infections for patients with stroke, with a pooled RR of 0.65 (95% CI 0.51 to 0.84; P = .0008). No significant results were found in disabilities, complication and laboratory outcomes. Conclusions: The present meta-analysis indicated no statistically significant effect of nutrition supplement on functional outcomes as well as disabilities, complication and laboratory outcomes for patients with stroke. However, it increased ADL and reduced the incidence of infections.
Association between the LINC00673 rs11655237 C> T polymorphisms with cancer risk in the Chinese population: A meta-analysis

Objectives: The present study aimed to conduct a meta-analysis of previously published studies in order to clarify the association of long noncoding RNA (lncRNAs) LINC00673 rs11655237 C> T polymorphism with cancer risk. Design: Systematic review and meta-analysis. Setting: Electronic databases of PubMed, EMBASE, Web of Science, Cochrane Library, Chinese National Knowledge Infrastructure, and Wanfang Database were used to search relevant studies. Studies published up to October 20, 2019 were included. The included studies were assessed in the following genetic model: allelic model, homozygote model, Heterozygote model, dominant model, recessive model. Data syntheses were conducted using STATA 12.0. Participants: Participants with various types cancers were included. Primary and secondary outcome measures: Odds ratio (ORs) and 95% confidence interval (CIs) were calculated to assess the risk of tumor. Results: Seven articles including 7 case-control studies, 7423 cases and 11,049 controls were adopted for meta-analysis. Our result demonstrated that LINC00673 rs11655237 C> T was related to the cancer among all model including allelic model (T vs C: pooled OR = 1.24, 95% CI = 1.16–1.41, P < .001), homozygous model (TT vs CC: pooled OR=1.54, 95% CI = 1.36–1.76, P < .001), heterozygous model (CT vs CC: pooled OR=1.24, 95% CI = 1.16–1.32, P < .001), dominant model (CT + TT vs CC: pooled OR=1.28, 95% CI = 1.20–1.36, P < .001) and recessive model (TT vs CT+ CC: pooled OR=1.42, 95% CI = 1.25–1.61, P < .001). Subgroup analysis also demonstrated that polymorphisms at this site also increased the risk of neuroblastoma. Conclusions: Our results find that rs11655237 contributed to occurrence of cancer in all models in Chinese population.
Factors Associated with the Involvement of Women Drug Users in Risky Sexual Behaviors: A Narrative Review

Background: Drug use is known as an important underlying factor in the occurrence of risky sexual behaviors. The present study was conducted to identify the factors associated with the involvement of women drug users in risky sexual behaviors. Materials and Methods: This review was conducted by searching databases of ISI Web of Science, Scopus, Science Direct, Cochrane, PubMed, Scientific Information Database (SID), the Iranian Magazine Database (Magiran), the Iranian Research Institute for Information Science and Technology (IranDoc), and the Iranian Medical Articles Database (IranMedex) and searching through the Google Scholar engine. All the articles published in English and Persian using the keywords including substance use, drug users, addiction, substance use disorders, substance-related disorders, sexual risks, high-risk sexual behavior, HIV risk behavior, unsafe sex, unprotected sex, and risky sex were searched from January 2000 to December 2020. After reviewing the articles, out of 110 articles, 21 articles were selected for final evaluation. Results: Factors related to the involvement of women drug users in risky sexual behaviors were divided into five categories: individual factors, factors related to drug use, inter-personal relationships, gender discrimination, and socio-economic factors. Conclusions: The results can be used in the field of women's social harms in finding strategies and designing the necessary interventions to prevent risky sexual behaviors in women drug users in different societies and cultural contexts. Also, the results can be used by all researchers who want to study the relationship between these factors and the involvement of women drug users in risky sexual behaviors.
Hydrodynamics of undulatory fish schooling in lateral configurations

The thrust benefits of lateral configurations of two-dimensional undulating fish-like bodies are investigated using high-fidelity numerical simulation. The solution of the Navier--Stokes equations is carried out with a viscous vortex particle method. Configurations of tethered pairs of fish arranged side by side are studied by varying the lateral separation distance and relative phase difference. It is shown that, in mirroring symmetry, the fish in the pair augment each other's thrust even at relatively large separations (up to ten body lengths). At small distances, this augmentation is primarily brought about by a peristaltic pumping in the gap between the fish, whereas at larger distances, the thrust is affected by subtle changes in the vortex shedding at the tail due to interactions with the other fish. In cases without symmetric undulation, one fish always draws more benefit from the interaction than the other. Finally, lateral configurations with three fish are studied with mirroring symmetry between neighboring fish. Whereas the center fish draws a net thrust benefit, this comes at the expense of a net drag on the outer two fish. Each adjacent pair in this arrangement is slightly affected by the presence of the third fish.
Weighing the Evidence: Which Studies Count?

We present results from two experiments run at World Bank and Inter-American Development Bank workshops on how policy-makers, policy practitioners and researchers weigh evidence and seek information from impact evaluations. We find that policy-makers and policy practitioners care more about attributes of studies associated with external validity than internal validity, while for researchers the reverse is true. These preferences can yield large differences in the estimated effects of pursued policies: policy-makers were willing to accept a program that had a 6.3 percentage point smaller effect on enrollment rates if it were recommended by a local expert, larger than the effects of most programs. Further, policy-makers and policy practitioners who had the most accurate forecasts of estimated program impacts were those who acted the most like researchers in seeking evidence, and vice versa.