Miracle-dz/UniFAR-FTUs huggingface dataset:
Quantitative classification of WR nuclei of planetary nebulae

We analyse 42 emission-line nuclei of Planetary Nebulae (PNe), in the framework of a large spectrophotometric survey of (WC) nuclei of PNe conducted since 1994, using low/medium resolution spectra obtained at ESO and at OHP. We construct a grid of selected line-intensities (normalized to C iv-5806 A= 100) ordered by decreasing ionisation potential going from 871 to 24 eV. In this grid, the stars appear to belong clearly to prominent O (hot (WO1-4) types) or C (cooler (WC4-11) types) line-sequences, in agreement with the classification of massive WR stars applied to Central Stars of Planetary Nebulae (CSPNe) by Crowther et al. 1998 (CMB98). We propose 20 selected line ratios and the FWHM of Civ and Ciii lines as classification diagnostics, which agree well with the 7 line ratios and the FWHMproposed by CMB98. This classification based on ionisation is related to the evolution of the temperature and of the stellar wind, reflecting the mass-loss history. In particular, inside the hot (WO4)-class, we discover four stars showing very broad lines over the whole spectral range. These stars possibly mark the transition from the initial momentum-driven phase to the later energy-driven phase of the CSPNe along their evolution from the post-Asymptotic Giant Branch (post-AGB) phase through (WC) late, (WC4) and (WO)-types. The HR diagram and the diagram linking the terminal velocity and the temperature indicate highly dispersed values of the stellar mass for our sample, around a mean mass higher than for normal CSPNe. The distribution of the 42 stars along the ionisation sequence shows 24% of (WO1-3), 21% of (WO4), 17% of (WC4) hot stars, and 26% of (WC9-11) cool stars. The (WC5-8) classes remain poorly represented (12%). This distribution is confirmed on the basis of a large compilation of the 127 known emission-lines CSPNe, which represent about 5% of the known PNe.
Strong-field ionization and Coulomb explosion of argon clusters by few-cycle laser pulses

Energy distributions are measured for ions emitted upon Coulomb explosion of ${\mathrm{Ar}}_{n}$ clusters ($n=400\ensuremath{-}900$) upon irradiation by intense three-cycle pulses ($10$ fs) of $800$-nm laser light of peak intensity $5\ifmmode\times\else\texttimes\fi{}{10}^{14} \mathrm{W}\mathrm{ }{\mathrm{cm}}^{\ensuremath{-}2}$. With few-cycle pulses, there is insufficient time for the cluster to undergo expansion; this results in overall dynamics that are significantly different from those in the many-cycle regime. The peak ion energies are much lower than those obtained when $100$-fs pulses of the same intensity are used; they are almost independent of the size of the cluster (over the range $400\ensuremath{-}900$ atoms). Ion yields are measured to be larger in the direction that is perpendicular to the laser-polarization vector than along it. Model molecular dynamics calculations are used to qualitatively rationalize this unexpected anisotropy in terms of shielding by a spatially asymmetric electronic-charge cloud within the cluster.
An 8-Week Peer Health Coaching Intervention among College Students: A Pilot Randomized Study

This study explored the effects of an 8-week peer coaching program on physical activity (PA), diet, sleep, social isolation, and mental health among college students in the United States. A total of 52 college students were recruited and randomized to the coaching (n = 28) or the control group (n = 24). The coaching group met with a trained peer health coach once a week for 8 weeks focusing on self-selected wellness domains. Coaching techniques included reflective listening, motivational interviews, and goal setting. The control group received a wellness handbook. PA, self-efficacy for eating healthy foods, quality of sleep, social isolation, positive affect and well-being, anxiety, and cognitive function were measured. No interaction effects between time and group were significant for the overall intervention group (all p > 0.05), while the main effects of group difference on moderate PA and total PA were significant (p < 0.05). Goal-specific analysis showed that, compared to the control group, those who had a PA goal significantly increased vigorous PA Metabolic Equivalent of Task (METs) (p < 0.05). The vigorous METs for the PA goal group increased from 1013.33 (SD = 1055.12) to 1578.67 (SD = 1354.09); the control group decreased from 1012.94 (SD = 1322.943) to 682.11 (SD = 754.89); having a stress goal significantly predicted a higher post-coaching positive affect and well-being, controlling the pre-score and other demographic factors: B = 0.37 and p < 0.05. Peer coaching showed a promising effect on improving PA and positive affect and well-being among college students.
The mean-value method of predicting the dynamic response of complex vibrators

The mean‐value theory predicts the mean line through the logarithmically recorded frequency‐response curve of a complex vibrator, the height of the resonance peaks, and the height of the minima that occur between every two resonance peaks. It predicts the mean and the extremes in the frequency‐ response curve from the first resonance of the vibrator to very high frequencies. The computations are based on the mode masses and on the density of the resonances. They are simple and they give considerable insight into the dynamics of complex vibrators. Part I of this paper presents the basics of the mean‐value theory. Part II deals with the variation of the vibration velocity with the distance from the driver and with the frequency. Part III is concerned with shells without and with stiffeners and with rib‐stiffened plates. Because it is always the component of the characteristic velocity that is transmitted by discontinuities (as though the parts of the vibrator behind them were infinitely large) that determin.
Plaster of Paris (POP) Installers’ Awareness of Occupational Hazards and Utilisation of Safety Measures in Ho Municipality, Ghana

Abstract Construction workers are found to use Personal Protective Equipment (PPE) infrequently, although workplace accidents are common and strongly associated with safety education. In Ho, Ghana, this study examines POP installers’ awareness of occupational hazards and the use of PPEs. The study’s motivation and contribution are in its analysis of the perceived obstacles and driving forces behind PPE use by POP installers in the construction industry, which is yet unknown in Ghana. Between May 15 and June 30, 2022, 149 POP installers in Ho Municipality filled out a crosssectional questionnaire using a purposive sampling method, and the data were analysed using the Statistical Package for Social Science (SPSS) v.20. The outcome variables were determined using logistic regression with a 0.05 p value, the relative importance index (RII), and correlation analysis. There is a lack of awareness of knowledge, PPE use, and workplace safety among the participants. Once again, respondents cited discomfort as a reason for not wearing PPE during POP installation. Furthermore, knowledge of occupational hazards among POP workers negatively predicts PPE usage (B = 0.207, p < 0.05). The study’s findings provide critical information for contractors’ associations to collaborate with relevant health and safety professionals to regularly organise safety awareness training for members to increase worker knowledge and reduce risk-taking behaviour. This study is unique because it is the first to access and provides an in-depth analysis of the purported barriers and driving motivations for PPE compliance and non-compliance from the perspective of an under-researched group of construction workers in Ghana.
Keto Is Not Just for Kids: A Randomized Trial of a Modified Atkins Diet for Adolescents and Adults With Anti-Seizure Medication-Resistant Epilepsy

Safety, Efficacy, and Tolerability of Modified Atkins Diet in Persons With Drug-Resistant Epilepsy: A Randomized Controlled Trial Manral M, Dwivedi R, Gulati S, Kaur K, Nehra A, Pandey RM, Upadhyay AD, Sapra S, Tripathi M. Neurology. 2023. doi:10.1212/WNL.0000000000206776 Background and objectives: Modified Atkins Diet (MAD) has emerged as an adjuvant therapy in drug-resistant epilepsy (DRE). Most studies are in children, there is limited evidence for DRE in adults. The present study aimed to investigate if MAD along with standard drug therapy (SDT) was indeed more effective than SDT alone in reducing seizure frequency and improving psychological outcomes at 6 months in adolescents and adults with DRE (non-surgical). Methods: A prospective randomized controlled trial was conducted at tertiary care referral centre, in India. Persons with DRE aged 10-55 years attending outpatient epilepsy clinics between August 2015 and April 2019, who had more than two seizures/month despite using at least three appropriate anti-seizure medications (ASMs) at their maximum tolerated doses and had not been on any form of diet therapy for the past one year, were enrolled. Patients were assessed for the eligibility and randomly assigned to receive SDT plus MAD (intervention arm) or SDT alone (control arm). The primary outcome was >50% reduction in seizure-frequency, and the secondary outcomes were quality of life (QOL), behaviour, adverse events and rate of withdrawal at six months. Intention to treat analysis was performed. Results: 243 patients were screened for eligibility; 160 patients (80 adults and 80 adolescents) were randomized to either intervention or Control arm. Demographic and clinical characteristics in both groups were comparable at baseline. At six months >50% seizure reduction was seen in 26.2% in the intervention group versus 2.5% in the control group (95% CI 13.5-33.9; p < 0.001). Improvement in QOL was 52.1 ± 17.6 in the intervention group versus 42.5 ± 16.4 in the control group (mean difference, 9.6; 95%CI 4.3 to 14.9, p < 0.001). However, behaviour scores could be performed in 49 patients and improvement was seen in intervention versus control group (65.6 ± 7.9 versus 71.4 ± 8.1, p = 0.015) at the end of the study. One patient had weight loss; two patients had iarrhoea. Discussion: MAD group demonstrated improvement in all aspects (reduction in seizure-frequency, and behavioural problems) compared to control group at the end of the study. MAD is an effective modality in controlling seizures, further research is required to assess its efficacy in terms of biomarkers along with descriptive metabolomics studies.
Residual stress of approximate deconvolution models of turbulence

We consider the case of a homogeneous, isotropic, fully developed, turbulent flow. We show analytically by using the −5/3 Kolmogorov's law that the time-averaged consistency error of the Nth approximate deconvolution LES (large eddy simulation) model converges to zero following a law as the cube root of the averaging radius, independently of the Reynolds number. The consistency error is measured by the residual stress. The filter under consideration is a second-order differential filter, but the 1/3 law is still valid in the case of the Gaussian filter and large class of filters used in LES. We also show how the 1/3 error law can be derived by a dimensional analysis.
The Na+/K+-ATPase: A potential therapeutic target in cardiometabolic diseases

Cardiometabolic diseases (CMD) are a direct consequence of modern living and contribute to the development of multisystem diseases such as cardiovascular diseases and diabetes mellitus (DM). CMD has reached epidemic proportions worldwide. A sodium pump (Na+/K+-ATPase) is found in most eukaryotic cells’ membrane and controls many essential cellular functions directly or indirectly. This ion transporter and its isoforms are important in the pathogenesis of some pathological processes, including CMD. The structure and function of Na+/K+-ATPase, its expression and distribution in tissues, and its interactions with known ligands such as cardiotonic steroids and other suspected endogenous regulators are discussed in this review. In addition, we reviewed recent literature data related to the involvement of Na+/K+-ATPase activity dysfunction in CMD, focusing on the Na+/K+-ATPase as a potential therapeutic target in CMD.
Optimal control of a class of linear multivariable systems with integral quadratic energy constraint

A direct method for the solution of optimal control problems of linear time-invariant systems with integral quadratic energy constraint is developed with the help of functional analysis. It is based on the representation of the state transition matrix of the adjoint system in terms of an orthonormal set of functions in a finite dimensional sub-space of square integrable Hilbert space and the Fourier expansion of the control vector in the Hilbert space. It is shown that the optimal control vector exists uniquely and is expressed as a linear functional of the orthonormal basis functions of the finite sub-space. The simplicity of the method lies ultimately in reducing the optimal problem to that of solving a finite set of linear algebraic equations
Neutrophil-to-Lymphocyte Ratio and Platelet-to-Lymphocyte Ratio as Predictive Factors for Mortality and Length of Hospital Stay after Cardiac Surgery

Background: Neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) are widely accepted indices positively correlated with disease severity, progression, and mortality. In this study, we tested whether NLR and PLR could predict mortality and length of hospital stay (LOS) after cardiac surgery. Methods: NLR and PLR were calculated on days 0, 3, 5, and 7 postoperatively. A ROC curve was generated to assess their prognostic value; multivariate logistic analysis identified independent risk factors for 90-day mortality. Results: Analysis was performed on 179 patients’ data, 11 of whom (6.15%) died within 90 days. The discriminatory performance for predicting 90-day mortality was better for NLR7 (AUC = 0.925, 95% CI:0.865–0.984) with the optimal cut-off point being 7.10. NLR5 and PLR3 also exhibited a significant strong discriminative performance. Similarly, a significant discriminative performance was prominent for PLR3, NLR5, and NLR7 with respect to LOS. Moreover, NLR7 (OR: 2.143, 95% CI: 1.076–4.267, p = 0.030) and ICU LOS (OR:1.361, 95% CI: 1.045–1.774, p = 0.022) were significant independent risk factors for 90-day mortality. Conclusions: NLR and PLR are efficient predictive factors for 90-day mortality and LOS in cardiac surgery patients. Owing to the simplicity of determining NLR and PLR, their postoperative monitoring may offer a reliable predictor of patients’ outcomes in terms of LOS and mortality.
Influence of Large-Scale Initial Oceanic Mixed Layer Depth on Tropical Cyclones*

Abstract The influence of spatial variations of the oceanic mixed layer depth (OMLD) on tropical cyclones (TCs) is investigated using a coupled atmosphere–ocean model. The model consists of a version of the Naval Research Laboratory limited area weather prediction model coupled to a simple 2½-layer ocean model. Interactions between the TC and the ocean are represented by wind-induced turbulent mixing in the upper ocean and latent and sensible heat fluxes across the air–sea interface. Four numerical experiments are conducted with different spatial variations of the unperturbed OMLD representing idealizations of broad-scale patterns observed in the North Atlantic and North Pacific Oceans during the tropical cyclone season. In each, the coupled model is integrated for 96 h with an atmospheric vortex initially of tropical storm intensity embedded in an easterly mean flow of 5 m s−1 and located over an oceanic mixed layer that is locally 40 m deep. The numerical solutions reveal that the rate of intensificatio.
Prevalence and Associated Factors of Work-Related Musculoskeletal Disorders Symptoms among Construction Workers: A Cross-Sectional Study in South China

Statistics showed that work-related musculoskeletal disorders (WMSDs) are the leading cause of productivity loss in the construction industry. This study aimed to investigate the prevalence of WMSDs and associated factors among construction workers. A cross-sectional study was conducted among 380 construction workers in Guangdong Province, China. A demographic, work-related survey and the Nordic musculoskeletal questionnaire were used to collect the workers’ data. Descriptive statists and logistic regression were used for the data analysis. The results showed that the overall prevalence of WMSDs symptoms among the participants in any body region during the last 12 months was 57.9%. Neck (24.7%), shoulder (22.1%), upper back (13.4%), and lower back (12.6%) showed the highest prevalence of WMSDs. Age, exercise, work experience, work position, and level of fatigue after work were significantly associated with the prevalence of WMSDs symptoms in different body regions. The findings of this study showed that the prevalence of WMSDs symptoms among construction workers in south China is still high and is associated with different body areas compared to previous studies. The prevalence of WMSDs and risk-associated factors vary by country and region. This indicates that further local investigations are needed to propose specific solutions to improve the occupational health of construction workers.
Relation among Mercury, Selenium, and Biomarkers of Oxidative Stress in Northern Pike (Esox lucius)

Mercury (Hg) is a toxic environmental contaminant associated with oxidative stress in freshwater fish. A known antagonist to Hg, selenium (Se), may reduce the toxic effects of Hg. In this study, the relation among Se, methylmercury (MeHg), inorganic mercury (IHg), total mercury (THg), and the expression of biomarkers of oxidative stress and metal regulation in livers of northern pike were examined. Livers from northern pike were collected from 12 lakes in Isle Royale National Park, Pictured Rocks National Lakeshore, Sleeping Bear Dunes National Lakeshore, and Voyageurs National Park. The concentrations of MeHg, THg, and Se were measured in liver tissue, and the expression of superoxide dismutase (sod), catalase (cat), glutathione s-transferase (gst), and metallothionein (mt) was assessed. There was a positive relationship between the concentrations of THg and Se, with a Hg:Se molar ratio less than one in all livers examined. There was no significant relation between sod, cat, gst, or mt expression and Hg:Se molar ratios. cat and sod expression were significantly related to increases in percent MeHg, relative to THg; however, gst and mt expression were not significantly altered. This suggests that incorporating biomarkers containing Se may be a better indicator than non-selenium-containing proteins of assessing the long-term effect of Hg and the interactions between Hg and Se in the livers of fish, such as northern pike, especially when molar concentrations of Se are greater than Hg.
On emission lines in the cosmic gamma-ray background

The composite spectrum of gamma-rays is calculated which results from the decay of Ni-56 to Co-56 to Fe-56 throughout the history of the universe. The results for several cosmological models are presented and compared with the Apollo 15 measurements at low resolution of the cosmic background. The radioactivity background is a significant fraction of the total, and several of its features may be detectable. -
Terbinafine Nanohybrid: Proposing a Hydrogel Carrying Nanoparticles for Topical Release

A poloxamer 407 (P407)—Casein hydrogel was chosen to carry polycaprolactone nanoparticles carrying terbinafine (PCL-TBH-NP). In this study, terbinafine hydrochloride (TBH) was encapsulated into polycaprolactone (PCL) nanoparticles, which were further incorporated into a poloxamer-casein hydrogel in a different addition order to evaluate the effect of gel formation. Nanoparticles were prepared by the nanoprecipitation technique and characterized by evaluating their physicochemical characteristics and morphology. The nanoparticles had a mean diameter of 196.7 ± 0.7 nm, PDI of 0.07, negative ζ potential (−0.713 mV), high encapsulation efficiency (>98%), and did not show cytotoxic effects in primary human keratinocytes. PCL-NP modulated terbinafine was released in artificial sweat. Rheological properties were analyzed by temperature sweep tests at different addition orders of nanoparticles into hydrogel formation. The rheological behavior of nanohybrid hydrogels showed the influence of TBH-PCL nanoparticles addition in the mechanical properties of the hydrogel and a long-term release of the nanoparticles from it.
Bubbles in a fluidized bed: A fast X‐ray scanner

We present experiments on a bubble train in a 23-cm-diameter fluidized bed of a Geldart B powder. The bubbles are injected via a single capillary inserted in the bed. We use our double X-ray tomographic scanner to measure the solids distribution in two parallel cross sections of the bed. We report data for four different heights of the measuring planes above the capillary outlet. The velocity of individual bubbles is found from the time of flight from the lower to the upper plane. We have done separate calibration experiments for the velocity. In this article, we present data for the size and velocity of individual bubbles. From the bubble velocity, we could obtain the vertical dimension of the bubbles. This makes it possible to measure the volume of each bubble. The results show that our scanner is capable of measuring properties of bubbles with a size of 2.5 cm and above. © 2010 American Institute of Chemical Engineers AIChE J, 2011
Common Traditions, Practices, and Beliefs Related to Safe Motherhood and Newborn Health in Morocco

The cultural context influences women’s antenatal care and postpartum knowledge. This study aims to determine the traditional practices related to maternal health in Morocco. We conducted in-depth qualitative interviews with 37 women from three different Moroccan regions on the first postpartum day. We used thematic content to analyze data, and an a priori coding framework was created utilizing the pertinent literature. Beliefs regarding pregnancy and postpartum positively affect maternal health, such as family support, prolonged rest for health recovery, and specific dietary precautions according to the mode of delivery of the new mother. However, some practices may negatively affect maternal health, such as cold postpartum treatment through traditional medicine and not seeking prenatal care after the first pregnancy experience. Such practices include painting newborns with henna, using kohl and oil to hasten the umbilical cord’s descent, and producing solutions based on chicken throat to cure respiratory ailments in newborns that might harm their health.
The Klinefelter Syndrome and Testicular Sperm Retrieval Outcomes

Klinefelter syndrome (KS), caused by the presence of an extra X chromosome, is the most prevalent chromosomal sexual anomaly, with an estimated incidence of 1:500/1000 per male live birth (karyotype 47,XXY). High stature, tiny testicles, small penis, gynecomastia, feminine body proportions and hair, visceral obesity, and testicular failure are all symptoms of KS. Endocrine (osteoporosis, obesity, diabetes), musculoskeletal, cardiovascular, autoimmune disorders, cancer, neurocognitive disabilities, and infertility are also outcomes of KS. Causal theories are discussed in addition to hormonal characteristics and testicular histology. The retrieval of spermatozoa from the testicles for subsequent use in assisted reproduction treatments is discussed in the final sections. Despite testicular atrophy, reproductive treatments allow excellent results, with rates of 40–60% of spermatozoa recovery, 60% of clinical pregnancy, and 50% of newborns. This is followed by a review on the predictive factors for successful sperm retrieval. The risks of passing on the genetic defect to children are also discussed. Although the risk is low (0.63%) when compared to the general population (0.5–1%), patients should be informed about embryo selection through pre-implantation genetic testing (avoids clinical termination of pregnancy). Finally, readers are directed to a number of reviews where they can enhance their understanding of comprehensive diagnosis, clinical care, and fertility preservation.