Miracle-dz/UniFAR-FTUs huggingface dataset:
Characterization of a rotating gliding arc in argon at atmospheric pressure

The dynamics of a low-power (<40 W) rotating gliding arc in atmospheric pressure argon sustained by a homemade dual DC power supply between a conical cathode and a grounded sleeve anode and forced into motion by the combined action of a vortex gas flow (<26.3 SLPM) and axial magnetic field (~0.043–0.122 T) was studied. High-speed imaging and electrical diagnostics were used to gain an understanding of the projected arc length, position of the attachment point on the central cathode, and frequency of arc rotation. The electrical signals revealed a glow-type mode of operation, which characteristically low current and high voltage. The square root dependency of the rotating arc frequency on the applied current predicted by a simplified model considering the gas vortex drag and Lorentz forces was confirmed with measurements. Rotation frequencies in the ~100–300 Hz range with average projected arc lengths of 4–8 mm creating a large stabilized reactive volume were obtained. We further demonstrated that the Lorentz force acting on the rotating gliding arc is equivalent to the hydrodynamic drag caused by an argon flow rate of ~8 SLPM for this device configuration.
Impact of the COVID-19 pandemic on patients with pre-existing mood disorders

Abstract Objectives: To examine the psychological and social impact of the COVID-19 pandemic on patients with established mood disorders during a period of stringent mandated social restrictions. Methods: Semi-structured interviews were conducted with 36 individuals attending the Galway–Roscommon Mental Health Services with an International Statistical Classification of Diseases and Related Health Problems, tenth revision (ICD-10) diagnosis of either Bipolar Affective Disorder (BPAD) (n = 20) or Emotionally Unstable Personality Disorder (EUPD) (n = 16) in this cross-sectional study. We determined the impact of the COVID-19 restrictions on anxiety and depressive symptoms, impulsivity, thoughts of self-harm, social and occupational functioning and quality of life. Results: The COVID-19 pandemic deleteriously impacted mental health (56.3% v. 15.0%, χ2 = 7.42, p = 0.02), and mood (75.0% v. 20.0%, χ2 = 11.17, p = 0.002) to a greater extent in the EUPD compared to the bipolar disorder cohort, with 43.8% of individuals with EUPD reporting an increase in suicidal ideation. Psychometric rating scales [Beck Anxiety Inventory (BAI), Beck Depression Scale (BDS), Beck Hopelessness Scale (BHS), Barratt Impulsivity Scale (BIS)] and Likert scales for anxiety, mood and quality of life noted significantly higher levels of psychopathology in the EUPD cohort (p < 0.01). Qualitative analysis reflected quantitative data with themes of the employment of maladaptive coping mechanisms and reduced mental health supports notable. Conclusions: Individuals with EUPD are experiencing significant mental health difficulties related to the COVID-19 pandemic. The provision and recommencement of therapeutic interventions to this cohort, in particular, are warranted given the significant distress and symptoms being experienced.
COVID-19 vaccination in autoimmune diseases (COVAD) Study: vaccine safety and tolerance in rheumatoid arthritis.

OBJECTIVES The COVID-19 vaccination in autoimmune diseases (COVAD) study aimed to assess short-term COVID-19 vaccination-related adverse events (AEs) in rheumatoid arthritis (RA) patients. METHODS An online self-reported questionnaire (March-December 2021) was used to capture data related to COVID-19 vaccination-related AEs in RA, other autoimmune rheumatic diseases (AIRDs) (excluding RA and inflammatory myositis), non-rheumatic autoimmune diseases (nrAIDs), and healthy controls (HCs). Descriptive and multivariable regression analyses were performed. RESULTS Of the 9462 complete respondents, 14.2% (n = 1347) had been diagnosed with RA who had a mean (standard deviation) age of 50.7 (13.7) years, and 74.2% were women, and 49.3% were Caucasian. In total, 76.9% and 4.2% of patients with RA reported minor and major AEs, respectively. Patients with active and inactive RA had similar AE and hospitalization frequencies. Overall, AEs were reported more frequently by BNT162b2 and mRNA-1273 recipients and less frequently by BBV152 recipients compared with the rest. Major AE and hospitalization frequencies were similar across recipients of different vaccines. Patients receiving methotrexate and hydroxychloroquine reported fewer minor AEs than those patients not on them. Compared with HCs and patients with other AIRDs, patients with RA reported similar total AEs, overall minor AEs, and hospitalizations. Compared with nrAIDs, patients with RA reported lower frequencies of overall AEs, minor AEs (both OR = 0.7; 95%CI = 0.5-0.9), and injection site pain (OR = 0.6; 95%CI = 0.5-0.8) with similar major AE and hospitalization frequencies. CONCLUSION Despite the differences in AE frequency across different COVID-19 vaccines, all were well tolerated in patients with RA and were comparable to HCs providing reassurance to the safety of COVID-19 vaccination in them.
Décomposition linéaire/non linéaire d'écoulements instationnaires

The unsteady inviscid flow of an incompressible fluid around a moving lifting surface is considered. It is assumed that the unsteadiness can be split in two parts, the first one corresponding to a mean motion and the second one to pertubations which are small enough to be accounted for with a linear theory. The resulting decomposition is used to build up a numerical method. This method is applied to the flow around a square flat plate and is tested by comparing the result obtained with those from a fully non-linear calculation
How wavelength affects the hydrodynamic performance of two accelerating mirror-symmetric slender swimmers

Fish schools can simultaneously accelerate during predator-prey interaction. Focusing on the representative problem, we numerically investigated how Reynolds number Re = 1000−2000, Strouhal number St = 0.2−0.7 and wavelength λ = 0.5−2 affects the mean net thrust and net propulsive efficiency of two side-by-side NACA0012 hydrofoils undulating in anti-phase. In total, 550 cases are simulated using the ConstraintIB module of the IBAMR open-source library. The thrust is strengthened by wavelength and Strouhal number, yet only slightly by the Reynolds number. We apply the symbolic regression tool PySR to formulate this relationship. We also found that mirror-symmetric schooling can achieve net thrust more than ten times that of a single swimmer, especially at low Reynolds number Re = 1000. The highest efficiency is obtained at St = 0.5 and λ = 1.1, coherently with BCF swimmers in the nature. Six distinct flow structures are identified. The highest thrust corresponds to an asymmetric flow pattern, whereas the highest efficiency occurs when the flow is symmetric with converging vortex streets.
The Role of Internal and External Individual Difference Factors in Bilingual Development: Exploring Highly Proficient Kurdish-English Bilinguals’ Perceptions

Drawing on qualitative research, the present study examines the characteristics of seven highly proficient Kurdish-English bilingual adolescents and their perceptions of the role of individual difference factors in bilingual development. Adopting a deductive thematic analysis approach, the collected data from semi-structured interviews were analyzed. The findings indicate that special attention should be paid to both internal and external factors in order for Kurdish-English bilinguals to reach high level of proficiency in both languages. External factors of richness of input, input quantity, language output, and socioeconomic status are crucial for fostering morphosyntactic and lexical skills in Kurdish and English. Moreover, the bilingual learners stated that conducting mathematical and logical problem-solving activities frequently and having high level of language learning aptitude are important predictors of rapid development of bilingual language abilities. In terms of age effects, the bilingual adolescents conveyed that having younger age and earlier start to Kurdish and English learning always lead to better morphosyntactic and lexical outcomes in both languages. To the best of our knowledge, the current study is the first to explore the role of individual difference factors in bilingual development among highly proficient Kurdish-English bilinguals. The paper highlights implications and directions for further research.
A note on the Northcott property and undecidability

We uncover a natural relationship between the Northcott property for sets of algebraic numbers and the Julia Robinson number associated to sets of algebraic integers. This implies, in particular, that any subring of a ring of totally real integers having the Northcott property has undecidable first‐order theory. Combining this theorem with previous results by the second author, we prove that the compositum of all totally real abelian extensions of Q of bounded degree d has undecidable first‐order theory.
Why Does Ethnic Diversity Undermine Public Goods Provision ?

Alarge and growing literature links high levels of ethnic diversity to low levels of public goods provision. Yet although the empirical connection between ethnic heterogeneity and the underprovision of public goods is widely accepted, there is little consensus on the specific mechanisms through which this relationship operates. We identify three families of mechanisms that link diversity to public goods provision—–what we term “preferences,” “technology,” and “strategy selection” mechanisms—–and run a series of experimental games that permit us to compare the explanatory power of distinct mechanisms within each of these three families. Results from games conducted with a random sample of 300 subjects from a slum neighborhood of Kampala, Uganda, suggest that successful public goods provision in homogenous ethnic communities can be attributed to a strategy selection mechanism: in similar settings, co-ethnics play cooperative equilibria, whereas non-co-ethnics do not. In addition, we find evidence for a technology mechanism: co-ethnics are more closely linked on social networks and thus plausibly better able to support cooperation through the threat of social sanction. We find no evidence for prominent preference mechanisms that emphasize the commonality of tastes within ethnic groups or a greater degree of altruism toward co-ethnics, and only weak evidence for technology mechanisms that focus on the impact of shared ethnicity on the productivity of teams.
Development of the research instrument for evaluating the desire to live in an industrial city

This study aims to develop a valid instrument to measure the two mediating variables namely place brand image and engagement with the place in the relationship between place brand benefits and employees’ desire to stay in Bintulu, a newly established industrial city in the east part of Malaysia. To fulfil the objective, this study assesses the validity and reliability of instruments before carrying out the primary data collection. This instrument has been devised based on the Stimulus-Organism-Response (S-O-R) model and takes the form of a questionnaire for employed individuals who were born outside of Bintulu. The development of the valid instrument in this study involves four stages of validity test: panel experts examine the content validity; targeted respondents determine the face validity; exploratory factor analysis assesses the construct validity; and internal consistency measures the instrument’s reliability. This study successfully gathered thirty-five usable questionnaires from working adults in Bintulu. The finding of this preliminary study demonstrates that the instrument is valid and reliable. All thirty-seven original items are thus retained. Performing step-by-step validity checks is essential in designing an instrument to assure its reliability. Using validated questionnaires in future studies can provide reliable empirical results, making them a practical solution.
Comparative Evaluation of Snowfall Retrievals from the CloudSat W-band Radar Using Ground-Based Weather Radars

Instantaneous liquid-equivalent snowfall rates S retrieved from CloudSat W-band cloud radar reflectivity Ze measurements are compared to estimates of S from operational Weather Surveillance Radar-1988 Doppler (WSR-88D) systems when the CloudSat satellite overflew the ground-based radar sites during spatially extensive nimbostratus snowfall events. For these comparisons, the ground-based radar measurements are interpolated to closely match in space and time spaceborne radar resolution volumes above ground clutter, thus avoiding uncertainties in deriving near-surface snowfall rates from measurements aloft by both radar types. Although typical uncertainties of both ground-based and spaceborne snowfall-rate retrieval approaches are quite high, the results from the standard optimal estimation CloudSat 2C-SNOW-PROFILE algorithm are on average in good agreement with the WSR-88D default snowfall algorithm results with correlation coefficients being around 0.8–0.85. The CloudSat standard optimal estimation snowfall-rate products are also shown to be in satisfactory agreement with retrievals from several simple W-band Ze–S relations suggested earlier. The snowfall rate and snow/ice water content (IWC) parameters from the CloudSat 2C-SNOW-PROFILE algorithm are highly interdependent. A tight relation between S and IWC is apparently introduced through the ice particle fall velocity assumption that is made in the reflectivity-based snowfall retrieval algorithm. This suggests that ice sedimentation rate estimates can also be deduced from applications of numerous empirical IWC–reflectivity relations derived previously for different cloud conditions when appropriate assumptions about fall velocities are made. Intercomparisons between different CloudSat snow/ice water content products indicated significant discrepancies in IWC values from different standard CloudSat retrieval algorithms.
Biological quality of drilled well water around the shrimp paste production place in Jor Village, East Lombok District

This study aimed to determine the quality of dug well water around the shrimp paste production site in Jor Hamlet, Jor Village, Jerowaru District, East Lombok Regency. The type of research used is an experiment with two parameters based on Minister of Health Regulation Number 32 of 2017, namely Biological Parameters, including Coliform and Escherichia coli. The sampling points in this study consisted of three water sampling points from residents' dug wells with two repetitions of sampling in Jor Hamlet, Jor Village, East Lombok Regency, and with consideration of sampling points based on the distance of the dug well to the location of making shrimp paste in below 10 meters and the shrimp paste production site does not have a good wastewater disposal system. Water quality around the shrimp paste production site in Jor Hamlet, Jor Village, Jerowaru District, East Lombok Regency, several parameters do not meet the requirements based on Minister of Health Regulation Number 32 of 2017 concerning Environmental Health Quality Standards and Water Health Requirements for Sanitation Hygiene, Swimming Pools, Solus Per Aqua, and Public Baths, namely Coliform Parameters, samples at sampling points A and B exceed the Quality Standard, namely 230 in both repetitions, while the Maximum Quality Standard is 50 MPN/100 ml. The Escherichia coli Parameters for all samples at all sampling points meet the Quality Standards, namely 0 MPN/100 ml samples, or there may not be Escherichia coli in clean water intended for Sanitary Hygiene. The highest research results for Coliform and Escherichia coli parameters were high at several points due to the distance between the well and the shrimp paste production site, which was very close, and the shrimp paste production site did not yet have a good wastewater disposal system.
A New Technique For Reduced-Order Modelling of Linear Time-Invariant System

ABSTRACT In this paper, a new technique for order reduction of linear time-invariant systems is presented. This technique is intended for both single-input single-output (SISO) and multi-input multi-output (MIMO) systems. Motivated by other reduction techniques, the new proposed reduction technique is based on modified pole clustering and factor division algorithm with the objective of obtaining a stable reduced-order system preserving all essential properties of the original system. The new technique is illustrated by three numerical examples which are considered from the literature. To evaluate the superiority and robustness of the new technique, the results of the proposed technique are compared with other well-known and recently developed order-reduction techniques like Routh approximation and Big Bang-Big Crunch algorithm. The comparison of performance indices shows the efficiency and powerfulness of the new technique.
The Effects of Zinc Supplementation on Growth, Diarrhea, Antioxidant Capacity, and Immune Function in Holstein Dairy Calves

Simple Summary Diarrhea is the most common disease in dairy calves and occurs frequently during the first month of life. It affects animal welfare and causes substantial economic losses. Zinc (Zn) is an essential nutrient element that can reduce the incidence of diarrhea. This study was designed to examine the effects of supplementary Zn proteinate (ZnPro, an organic zinc source) and Zn oxide (ZnO, an inorganic zinc source) on growth performance, diarrhea, antioxidant capacity, immune function, and mineral element concentrations of dairy calves during the first 28 days of life. Both ZnPro and ZnO reduced the bouts of diarrhea and promoted the immune function of calves, but ZnPro improved the growth performance and antioxidant capacity to a greater extent than ZnO. It was concluded that ZnPro is a better zinc source to improve calf health and performance than ZnO. Abstract The current study examined the effects of supplementary zinc proteinate (ZnPro) and zinc oxide (ZnO) on growth performance, diarrhea, antioxidant capacity, immune function, and mineral element concentrations of calves aged 1 to 28 days. A total of twenty-four newborn calves were divided randomly into 3 groups (n = 8; 2 males and 6 females per group), and each received: 0 mg/d Zn (CON), 627 mg/d ZnPro (80 mg/d Zn; ZnPro group), and 101 mg/d ZnO (80 mg/d Zn; ZnO group). The calves received the additive in their milk during the first 28 days of life. Compared with the CON group: ZnPro and ZnO improved average daily gain (ADG) and decreased the feed:gain ratio (FGR) between days 1 and 14 (p < 0.05), while the ADG increased and FGR decreased only in the ZnPro group between days 1 and 28 (p < 0.05). The incidence of diarrhea decreased (p < 0.05) in the ZnPro and ZnO groups between days 15 and 28 as well as days 1 and 28, but decreased (p < 0.05) only in the ZnPro group between days 1 and 14. The serum immunoglobulin G (IgG) concentration of the ZnPro and ZnO groups increased on days 14 and 28 (p < 0.05). ZnPro supplementation increased serum IgM concentration during the whole study, while ZnO enhanced serum IgM concentration only on day 14 (p < 0.05). In the ZnO group, the serum concentration of cytokines interleukin (IL)-10 increased on day 14, while that of IL-1β increased on day 28 (p < 0.05). In addition, ZnPro reduced the serum malondialdehyde (MDA) concentration on days 14 and 28 (p < 0.05). Both ZnPro and ZnO increased the serum concentrations of alkaline phosphatase (ALP) and metallothionein (MT) on day 14 (p < 0.05). With zinc supplementation, plasma Zn concentration increased (p < 0.05) on days 14 and 28 of age. We concluded that supplementary ZnPro and ZnO reduced incidences of diarrhea and promoted the immune function, but ZnPro improved the growth performance and antioxidant capacity of Holstein dairy calves to a greater extent.
Vortex lattices with transverse-mode-locking states switching in a large-aperture off-axis-pumped solid-state laser

We report on optical vortex lattices (OVL) beams with phase-singularity arrays from a large-aperture diode-pumped Yb:CALGO laser. A distinct transverse-mode-locking (TML) effect is found in the OVL formation via controlling pump aperture and off-axis displacement. Various OVL patterns with vortex arrays can be generated in a TML state. While in a non-TML state, the emission is always a high-order Hermite–Gaussian or Ince–Gaussian mode. Interestingly, a stable TML can be started from a non-TML state by an intentionally induced perturbation. Based on the TML principle, a new closed-form expression is theoretically proposed for interpreting the transverse patterns and the evolution principle of various OVL modes, showing good agreement with the experimental results.
Explore Issues and Challenges Involving Female Characters in Documentary Filming

Purpose: A documentary film or documentary is a non-fictional motion picture intended to reflect reality, typically for the goals of instruction, preservation of history, or training. Documentary filming heroines must always be noble, alluring, and seductive, regardless of the type of roles they perform. Method: The same method of objectification is employed in Michael Bay's “Transformers” film, on the other hand, are what ultimately influence both male and female filmmakers as well as audiences to make sense of the narratives, reasoning, and symbolisms that the media industry, particularly cinema, uses to construct its framework and establish its method of operation. Result: As a result, it serves as an essential medium for female creative expression and a source of knowledge for women. The mild paradox that results from this is that women are not hired for jobs where past employment is required to prove one's value. Conclusion: The fallouts of the review provide a more thorough picture of female representation in documentary filming and how viewers have evolved to perceive it through time. Unfortunately, women face a variety of problems in addition to media underrepresentation.
Role of Religiosity in Psychological Well-Being and Subjective Happiness among Transgender Considering Social Support as a Moderator

Religiosity refers to people's tendencies to commit to religious beliefs and activities. Although abundant research has established a clear association between religion and psychological well-being, religion has both positive and negative implications depending on the way religion is used and inferred. However, inquiries into positive transgender development are specifically important, yet scarcely done, given the high rates of gender-based victimization and limited health resources. Moreover, transgender Muslims may encounter multiple forms of minority stress such as gender minority and ethnic minorities as well. Therefore, this research was designed to examine both bivariate and multivariate associations between Psychological Well-being, Subjective Happiness, and Social Support, and the possible positive role of religiosity for them. For this purpose, 100 transgender people were taken from different communities in Pakistan through snowball sampling. The Index of Religiosity (IR), Ryff's Scales of Psychological Well-being (RSPWB), Multidimensional Scale of Perceived Social Support (MSPSS), and Subjective Happiness Scale (SHS) were used to collect data. SPSS was used for data analysis. The mean age of participants was 27 years. The results revealed that Subjective Happiness and Psychological Well-being were correlated (p<.05) among transgender. Furthermore, it was found that those who have more religious practices, tend to have better Psychological Well-being however Social Support was not found to have any impact on the relationship. As for Subjective Happiness, Religiosity was also found to be a significant predictor along with a significant moderating role of Social Support. This indicated that Religious practices can be used as a significant means to promote and better the well-being of the transgender community.