Miracle-dz/UniFAR-FTUs huggingface dataset:
Electrocoagulation of Soluble Oil Wastewater: Parametric and Kinetic Study

Soluble oils (cutting oils) in aqueous solution are used extensively in the engineering and metal working industries, as coolants, metal forming fluids, and/or lubricants. Hysol-X is a general-purpose cutting oil used in 1–10% concentration in aqueous solution. This paper investigates demulsification of soluble-oil-water emulsion using electrocoagulation with aluminum electrodes. It examines the current efficiency and the pH variation of the system due to electrocoagulation and the effect of pH of the oil-water emulsion, current density, and temperature on the demulsification process. A simple first order kinetics fits the experimental data at a constant value of current density. The optimum pH and current density were found to be 6.50 and 138.8 A/m2, respectively. Apparent electrode current efficiency was found to be 115.5%. Temperature has significant effect on emulsion stability and solution pH. At a lower temperature of 20°C or a higher temperature of 60°C, the turbidity (or oil) removal is found to be very high. More than 99% oil separation is achieved in 3 h at 20°C. The residual aluminum concentration in the treated water at an initial pH 6.5 is found to be 0.001 mg/l, well below the statutory discharge standard value.
Effects of Mound Versus Flat-Ground Pitching and Distance on Arm Mechanics and Elbow Torque in High School Pitchers

Background: Although the monitoring of a pitcher’s throwing arm workload has become a hot topic in both research and the pitching world, the impact of mound height and distance still remains unclear. Purpose: To compare the kinetics and kinematics between pitches from a mound and flat ground at 2 different distances. Study Design: Descriptive laboratory study. Methods: A total of 21 healthy high school varsity baseball pitchers (age, 16.2 ± 1.3 years; weight, 73.6 ± 11.0 kg; height, 181.3 ± 6.4 cm) participated in this study. Players were fitted with a motusBASEBALL sensor and sleeve. Each pitcher was instructed to pitch 5 fastballs under 4 conditions: mound at 60.5 ft (regulation distance), flat ground at 60.5 ft, mound at 50.5 ft, and flat ground at 50.5 ft. Linear mixed-effects models were used to account for both intra- and interplayer variability. A multivariable model was used to evaluate the association of mound pitching, flat-ground pitching, and their distances (50.5 ft and 60.5 ft), and their interaction to arm speed, arm slot, arm rotation, elbow varus torque, and ball velocity. Results: There were no statistically significant effects of mound, flat-ground, or distance variation on arm speed or shoulder rotation. Arm slot was significantly higher (+3.0°; P = .02) on pitches from the mound at 60.5 ft compared with 50.5 ft. Elbow varus torque was lower (–1.5 N·m; P = .02) on mound pitches at 60.5 ft compared with 50.5 ft. Pitches thrown from the mound displayed significantly faster ball velocity compared with flat-ground pitches at both distances (P < .01 for both), with pitches at 60.5 ft having higher velocity (+0.7 m/s; P < .01). Conclusion: Contrary to long-standing notions, the study results suggest that pitching from the mound does not significantly increase stress on the elbow compared with flat-ground pitching. Lower elbow varus torque and faster ball velocity at the regulation distance compared with the reduced distance indicate that elbow stress and ball velocity may not correlate perfectly, and radar guns may not be an appropriate surrogate measure of elbow varus torque. Clinical Relevance: A better understanding of the kinetic and kinematic implications of various throwing programs will allow for the designing of programs that are driven by objective data with aims directed toward injury prevention and rehabilitation in baseball pitchers.
The Importance of Positive Events When Living With Chronic Pain

Abstract Chronic pain is a common condition in later life that is related to high levels of anxiety and depression. One reason why chronic pain is related to affective distress is that this condition may prevent people from deriving the same positive emotions from enjoyable activities. Few studies, however, have examined how exposure and reactivity to daily events differ by chronic pain status. We hypothesized that those with chronic pain will have less exposure and less positive affect reactivity to positive daily events compared to those without chronic pain. Participants from the diary substudy of MIDUS (N = 1,733; nChronicPain = 658, nNoPain = 1,075; M = 56 years-old) completed eight interview days. Chronic pain status was unrelated to the frequency of positive events. Multi-level models revealed that although people with chronic pain had lower levels of daily positive affect, they reacted more positively to daily events (γ = -.033, SE = .010, p < .0001). As a result, levels of daily positive affect on days when people experienced a positive event did not vary by pain status (MChronicPain = 2.73, MNoPain = 2.75). People with chronic pain averaged higher levels of daily negative affect compared to people without chronic pain (MChronicPain = .21, M NoPain =.20), but, on days when they experience a positive event, those with chronic pain had a greater decrease in their negative affect. Findings suggest that positive events impact those with chronic pain more than they do individuals without chronic pain.
Hydrogen Production by Catalytic Decomposition of Methane

Traditionally, hydrogen is produced by reforming or partial oxidation of methane to produce synthesis gas, followed by the water-gas shift reaction to convert CO to CO2 and produce more hydrogen, followed in turn by a purification or separation procedure. This paper presents results for the catalytic decomposition of undiluted methane into hydrogen and carbon using nanoscale, binary, Fe−M (M = Pd, Mo, or Ni) catalysts supported on alumina. All of the supported Fe−M binary catalysts reduced methane decomposition temperature by 400−500 °C relative to noncatalytic thermal decomposition and exhibited significantly higher activity than Fe or any of the secondary metals (Pd, Mo, and Ni) supported on alumina alone. At reaction temperatures of approximately 700−800 °C and space velocities of 600 mL g-1 h-1, the product stream was comprised of over 80 volume % of hydrogen, with the balance being unconverted methane. No CO, CO2, or C2 and higher hydrocarbons were observed in the product gas. High-resolution SEM and.
Effect of pro‐oxidants on biodegradation of polyethylene (LDPE) by indigenous fungal isolate, Aspergillus oryzae

Proxidant additives represent a promising solution to the problem of the environment contamination with polyethylene film litter. Pro-oxidants accelerate photo- and thermo-oxidation and consequent polymer chain cleavage rendering the product apparently more susceptible to biodegradation. In the present study, fungal strain, Aspergillus oryzae isolated from HDPE film (buried in soil for 3 months) utilized abiotically treated polyethylene (LDPE) as a sole carbon source and degraded it. Treatment with pro-oxidant, manganese stearate followed by UV irradiation and incubation with A. oryzae resulted in maximum decrease in percentage of elongation and tensile strength by 62 and 51%, respectively, compared with other pro-oxidant treated LDPE films which showed 45% (titanium stearate), 40% (iron stearate), and 39% (cobalt stearate) decrease in tensile strength. Fourier transform infrared (FTIR) analysis of proxidant treated LDPE films revealed generation of more number of carbonyl and carboxylic groups (1630–1840 cm−1 and 1220–1340 cm−1) compared with UV treated film. When these films were incubated with A. oryzae for 3 months complete degradation of carbonyl and carboxylic groups was achieved. Scanning electron microscopy of untreated and treated LDPE films also revealed that polymer has undergone degradation after abiotic and biotic treatments. This concludes proxidant treatment before UV irradiation accelerated photo-oxidation of LDPE, caused functional groups to be generated in the polyethylene film and this resulted in biodegradation due to the consumption of carbonyl and carboxylic groups by A. oryzae which was evident by reduction in carbonyl peaks. Among the pro-oxidants, manganese stearate treatment caused maximum degradation of polyethylene. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011
Judging Older Adult Speakers: Only Young Adults Low in Ageism Notice the Nuances

Abstract Ageism negatively impacts hiring and electability success, as well as intergenerational relationships (Levy,2003;2009). The current study sought to examine whether personality cues influenced performance ratings of older adult (OA) speakers whose behavior had been modified by an embodiment intervention (i.e., “power posing”). One-hundred-and-three young adults (YA; Mage=19.6, SD=2.06; 49.5% women) rated the performance of 9 OA speakers performing 5-minute campaign speeches, and reported the cues that influenced their ratings. Two independent raters coded the cues (i.e., introversion and extroversion; coded by two independent raters, κ = .72 [moderate-to-substantial interrater reliability; Chen, 2019; McHugh, 2012]). Participants also completed the Refined-Aging Semantic Differential (Polizzi & Millikin, 2002) as a measure of ageism endorsement. Greater ageism was associated with lower performance ratings (F(1,101)=15.97, p<. 001, R2=. 14); performance was reduced by . 12, 95%CIs[-. 018,-. 006] for each additional point of ageism endorsement. Next, we investigated whether personality cues would modify this relationship using Hayes PROCESS Model 1 (2018). A significant interaction emerged between ageism and introverted cues (b=.015, p=.05, 95%CIs[.006,.023]), suggesting that greater perceived introversion was negatively associated with performance ratings. Additionally, individuals lower in ageism were more likely to calibrate their performance judgments based on the pose condition of the speaker, with participants lower in ageism exhibiting greater variability across pose conditions (Ms=3.96-4.37), than individuals higher in ageism (Ms=4.21-4.31), suggesting that individuals lower in ageism were attending to nuances in the speech (e.g., pose influence), while higher ageist individuals relied more heavily on age-related judgments.
Calculations of 1H NMR coupling constants for conformational studies of isomeric pentofuranosyl nucleosides

The SCF FPT method in the INDO approximation of molecular orbital theory is employed for calculations of 1H NMR cisoidal coupling constants in model compounds. Obtained results are used for finding conformational states of α-xylo-, β-lyxo-, and α-2′-deoxyribonucleosides in solution.
A Short Screening Measure of Contextual Vulnerability for Financial Exploitation

Abstract Financial exploitation (FE) among older adults is an expensive personal and societal problem. Many professionals who work with older adults need fast and reliable measures to detect FE, including: APS workers, financial professionals, and healthcare providers. Very few standardized measures exist to assess an older adult’s risk for FE, and fewer still that do not require extensive training to administer. Lichtenberg et al. (in press) presented the Financial Exploitation Vulnerability Scale (FEVS), which assesses the context (i.e. financial, social, and psychological) in which an older adult is making a financial decision. This 17-item scale differentiates between older adults who’ve experienced FE and those who have not. It has excellent psychometric properties and clinical utility to detect FE beyond demographic and neuropsychological variables. We utilized exploratory factor analysis to examine the factor structure of the FEVS and reduce the number of items. Participant data (n=243) were drawn from two samples: a community-based sample and a group of individuals who were seeking financial coaching services following a financial scam or theft. Examination of the eigenvalues yielded a unidimensional scale. An iterative process was used to remove items that did not load on the single factor or with low corrected item total correlations. The final scale contained nine items and retained its ability to detect financial exploitation (AUC=0.778) and good internal consistency (a=0.845). This short form scale (FEVS-SF) is a brief, standardized screening measure to assess contextual vulnerability for FE that is accessible to professionals who work with older adults.
Prediction of chlorine potentials of N-chlorinated organic molecules

Different linear free energy correlations have been found between the relative tendencies of (A) anions of imides and amides, and (B) secondary and tertiary amines, to accept a proton, or to accept a positive chlorine ion to yield a N-chloro-derivative. Using these relationships it should be possible to predict the chlorine potential of a N-chloro-compound when its structure and the acid dissociation constants of the N-chloro- and N-protonated derivatives are known.
The prevalence and spectrum of mucocutaneous disease in South African people living with HIV and accessing care at a district-level hospital

Background Although the association between human immunodeficiency virus (HIV) and mucocutaneous diseases has been well studied within South African specialist centres, there is limited data from district-level hospitals. Available data may, therefore, fail to reflect the prevalence and full spectrum of dermatoses seen in people living with HIV (PLWH). Objectives To determine the prevalence and spectrum of dermatoses seen in PLWH. Method We conducted a cross-sectional, descriptive study of 970 PLWH (men and women, ≥ 18 years old) accessing care at Karl Bremer Hospital, a district-level hospital located in the Western Cape province, South Africa, between 01 September 2016 and 28 February 2017. Results The prevalence of mucocutaneous disease in this sample was 12.7% (95% confidence interval [CI] 0.11–0.15). Non-infectious dermatoses comprised 71.0% of the disorders. Pruritic papular eruption (20.0%) and seborrheic dermatitis (6.0%) were the most common non-infectious dermatoses. Tinea corporis (8.0%) and oral candidiasis (6.0%) were the most prevalent infectious dermatoses. There was no significant association between skin disease category (infectious or non-infectious dermatoses) and patient demographics (gender and ethnicity) or HIV-disease characteristics (CD4+ cell count, viral load and duration of antiretroviral therapy [ART]). Conclusion This study provides valuable scientific data on the prevalence and spectrum of mucocutaneous disease in PLWH attending a South African district-level hospital. Prospective studies conducted in other district-level centres across the country are required to determine the lifetime prevalence and spectrum of dermatoses in PLWH in the ART era.
Illuminating the empowerment journey of caregivers of children with disabilities: Understanding lessons learnt from Ghana

Background Empowerment is an increasingly popular goal, considered core to a transformative agenda for children with disabilities and their families. However, it can still be a poorly understood concept in practice. Objective This article is an empirical analysis of the ‘empowerment journeys’ of caregivers participating in a community-based training programme in Ghana. Method In-depth interviews were conducted with 18 caregivers at three time points over 14 months. Thematic analysis was conducted on the full data set, with three representative case studies selected for more detailed analysis to illustrate the dynamism of time and context in shaping the empowerment journey. Results Our findings illuminate the complexity and non-linearity of the caregiver empowerment journey. There were important gains in individual dimensions of power and the nascent emergence of collective power, through improved knowledge and valuable peer support from group membership. However, further gains were impeded by their limited influence over wider economic and sociopolitical structural issues that perpetuated their experiences of poverty, stigma and the gendered nature of caregiving. The support group facilitator often played a valuable brokering role to help traverse individual agency and structural issues. Conclusion A richer and more nuanced understanding of caregiver empowerment in the community and family context can inform the wider discourse on disability. Guidelines on working with people with disabilities, and the role of empowerment, should not neglect the pivotal role of caregivers. There are important lessons to be learnt if we want to improve family-centred interventions and transform the lives of children with disabilities.
Diagnosis of Schaaf-Yang syndrome in Korean children with developmental delay and hypotonia

Abstract Schaaf-Yang syndrome (SYS) is a recently identified disorder caused by a loss-of-function mutation in a maternally imprinted gene, MAGEL2, at 15q11.2q13. Due to its extreme rarity and wide range of clinical severity, clinical suspicion is difficult for a physician. In the current study, its frequency among the Korean pediatric patients with developmental delay (DD) or intellectual disability (ID) was assessed. As the first report of Korean patients with SYS, our study aims to increase the awareness of this condition among the physicians taking care of the pediatric patients with DD/ID and hypotonia. The patients diagnosed with SYS by whole-exome sequencing (WES) among the 460 Korean pediatric patients with DD/ID were included, and their clinical and molecular features were reviewed. Four patients (0.9%) were diagnosed with SYS. Profound DD (4 patients), multiple anomalies including joint contractures and facial dysmorphism (4 patients), generalized hypotonia (3 patients), and severe respiratory difficulty requiring mechanical ventilation (3 patients) were noted in most cases, similar to those in previous reports. Sleep apnea (2 patients), autistic features (2 patients), a high grade of gastroesophageal reflux (1 patient), and seizures (1 patient) were found as well. A total of 3 different truncating MAGEL2 mutations were identified. A previously-reported mutation, to be the most common one, c.1996dupC, was found in 2 patients. The other 2 mutations, c.2217delC and c. 3449_3450delTT were novel mutations. As MAGEL2 is maternally imprinted, 2 patients had inherited the MAGEL2 mutation from their respective healthy fathers. SYS is an extremely rare cause of DD/ID. However, hypotonia, joint contractures, profound DD/ID and facial dysmorphism are the suggestive clinical features for SYS. As a maternally imprinted disorder, it should be reminded that SYS may be inherited in form of a mutation from a healthy father.
The Search of miRNA Related to Invasive Growth of Nonfunctioning Gonadotropic Pituitary Tumors

Purpose Nonfunctioning gonadotropic pituitary neuroendocrine tumors (PitNETs) are among the most frequent neoplasms of pituitary gland. Although PitNETs are commonly considered benign, a notable part of patients suffer from tumor recurrence after treatment. Invasive growth of pituitary tumor is among the most important prognostic factors. Since molecular features of invasiveness are of potential clinical usefulness, this study was aimed to verify whether invasive and noninvasive nonfunctioning gonadotropic PitNETs differ in the miRNA expression profile and whether the differences could provide a possible molecular classifier. Methods miRNA profiles were determined in 20 patients (11 invasive and 9 noninvasive tumors) using next-generation sequencing. The expression of selected miRNAs was assessed in the independent cohort of 80 patients with qRT-PCR. Results When miRNA profiles of invasive and noninvasive tumors were compared, 29 miRNAs were found differentially expressed. Hsa-miR-184, hsa-miR-181a-2-3p, hsa-miR-93-3p, hsa-miR-574-5p, hsa-miR-185-5p, and hsa-miR-3200-5p showed a potential clinical value according to ROC curve analysis. Unfortunately, differential expression of only hsa-miR-185-5p was confirmed in the validation cohort, with AUG at 0.654. Conclusion Differences in miRNAs expression profiles in invasive and noninvasive gonadotropic PitNETs are slight and the level of miRNA expression seems not to be applicable as useful classifier of tumor invasiveness.
Micro-Raman investigations of PVDF-based proton-conducting membranes

Proton-conducting membranes of poly(vinylidene fluoride), PVDF, grafted with styrene and thereafter sulfonated, were investigated by Raman spectroscopy. The depth and surface distribution of polystyrene grafts and crosslinker, as well as the sulfonation efficiency, were determined by using confocal micro-Raman spectroscopy. Highly grafted samples show homogeneous distribution of grafted material and homogeneous sulfonation. Depth profiles reveal uneven graft distribution for samples with low and intermediate degrees of grafting. In crosslinked samples, the crosslinker concentration in the interior of the film is found to be roughly 50% of the surface concentration. In contrast to what has previously been reported, the sulfonation efficiency is poor at low graft levels and is further inhibited by the presence of divinyl benzene, DVB, as crosslinker. At degrees of grafting above ∼ 60%, the crosslinker does not affect the sulfonation efficiency and a level of 70–90% sulfonation is reached. The matrix polymer structure is found to be largely retained after irradiation, grafting, and sulfonation. © 1999 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 37: 3317–3327, 1999
Essential Oil of Mentha piperita L. Grown in Jalisco

Abstract Steam-distilled volatiles of Mentha piperita L. grown in Jalisco was analyzed by GC/MS. Among the 64 compounds identified, menthone (15.4%), menthofuran (18.2%), menthol (35.4%) and menthyl acetate (12.4%) were the major constituents.
High-Energy Proximal Humerus Fractures in Geriatric Patients: A Review

High-energy proximal humerus fractures in elderly patients can occur through a variety of mechanisms, with falls and MVCs being common mechanisms of injury in this age group. Even classically low-energy mechanisms can result in elevated ISS scores, which are associated with higher mortality in both falls and MVCs. These injuries result in proximal humerus fractures which are commonly communicated via Neer’s classification scheme. There are many treatment options in the armamentarium of the treating surgeon. Nonoperative management is widely supported by systematic review as compared to almost all other treatment methods. ORIF is particularly useful for complex patterns and fracture dislocations in healthy patients. Hemiarthroplasty can be of utility in patients with fracture patterns with high risk of AVN and poor bone quality risking screw cut-out. Reverse total shoulder arthroplasty is a popular method of treatment for geriatric patients also, with literature now showing that even late conversion from nonoperative management or ORIF to rTSA can lead to good clinical outcomes. Prevention is possible and important for geriatric patients. Optimizing medical care including hearing, vision, strength, and bone quality, in coordination with primary care and geriatricians, is of great importance in preventing fractures and decreasing injury when falls do occur. Involving geriatricians on dedicated trauma teams will also likely be of benefit.