Miracle-dz/UniFAR-FTUs huggingface dataset:
Measurement of the splashback feature around SZ-selected Galaxy clusters with DES, SPT, and ACT

We present a detection of the splashback feature around galaxy clusters selected using the Sunyaev–Zel’dovich (SZ) signal. Recent measurements of the splashback feature around optically selected galaxy clusters have found that the splashback radius, rsp, is smaller than predicted by N-body simulations. A possible explanation for this discrepancy is that rsp inferred from the observed radial distribution of galaxies is affected by selection effects related to the optical cluster-finding algorithms. We test this possibility by measuring the splashback feature in clusters selected via the SZ effect in data from the South Pole Telescope SZ survey and the Atacama Cosmology Telescope Polarimeter survey. The measurement is accomplished by correlating these cluster samples with galaxies detected in the Dark Energy Survey Year 3 data. The SZ observable used to select clusters in this analysis is expected to have a tighter correlation with halo mass and to be more immune to projection effects and aperture-induced biases, potentially ameliorating causes of systematic error for optically selected clusters. We find that the measured rsp for SZ-selected clusters is consistent with the expectations from simulations, although the small number of SZ-selected clusters makes a precise comparison difficult. In agreement with previous work, when using optically selected redMaPPer clusters with similar mass and redshift distributions, rsp is ∼2σ smaller than in the simulations. These results motivate detailed investigations of selection biases in optically selected cluster catalogues and exploration of the splashback feature around larger samples of SZ-selected clusters. Additionally, we investigate trends in the galaxy profile and splashback feature as a function of galaxy colour, finding that blue galaxies have profiles close to a power law with no discernible splashback feature, which is consistent with them being on their first infall into the cluster.
Syndicated leadership in urban development projects: the case of the River City Gothenburg project

Abstract Large-scale urban development projects are complex economic and politically shaped activities, and such projects have oftentimes proved to be more costly and demanding more time to complete than is frequently being stipulated from the outset. Based on these conditions, urban development projects demand effective cross-organizational collaborations to optimize the use of available expertise, the capacity to process data and information, and to optimize public interests (being monitored by democratically elected entities in democratic societies). Based on a study of a major urban development project in Gothenburg, Sweden, this article introduces the concept of syndicated leadership, derived from the concept of syndicated investment in the venture capital industry. Syndicated leadership is based on the centralization of decision-making authority and resource allocation to a team of leaders, each representing (in the case examined) a private corporation, a municipality corporation, or a municipality agency having specific responsibilities in the shared urban development project, but also being dependent on the capacity to coordinate and align project activities. As the case indicates, syndicated leadership demands new expertise and communicative capacities and political skills, but when implemented effectively, it holds the promise of avoiding costly and embarrassing urban development project failures as it makes better use of the expertise of the participant organizations and better accommodate public interests.
Performance of the Q-Matrix Validation Methods in the DINA Model

All cognitive diagnostic models that evaluate educational test data require a Q-matrix that combines every item in a test with the required cognitive skills for each item to be answered correctly. Generally, the Q-matrix is constructed by education experts' judgment, leading to some uncertainty in its elements. Various statistical methods are suggested to validate misspecifications in the Q-matrix. This paper evaluates the performance of the Q-matrix validation methods, thesequential expectation-maximization-based δ-method (SEM δ-method), and the Q-matrix refinement (QMR) method using a study with real data and simulations.The simulation design results showed that the misspecification percentage and the length of the test had a small or no effect on the mean q-entry recovery rates (MRRs) of both methods, while the increase in sample size had an improving effect. The MRRs of both methods decreased when the number of attributes and guessing (g) -slip (s) parameters increased. According to simulation study results, the QMR method performed better than the SEM δ-method. For the q-matrix validation, it can be suggested that CDM practitioners prioritize the QMR method and use a sample size of 1,000. On the other hand, the real data results revealed that the MRRs of both methods were at the base rates. This result highlights the need for further research on method comparison, specifically for real-world data applications where the number of attributes is relatively large and the test duration is short.
Gravitational collapse in the Schrödinger-Poisson system

We perform a quantitative comparison between N-body simulations and the Schrö\-dinger-Poisson system in 1+1 dimensions. In particular, we study halo formation with different initial conditions. We observe the convergence of various observables in the Planck constant ℏ and also test virialization. We discuss the generation of higher order cumulants of the particle distribution function which demonstrates that the Schrödinger-Poisson equations should not be perceived as a generalization of the dust model with quantum pressure but rather as one way of sampling the phase space of the Vlasov-Poisson system—just as N-body simulations. Finally, we quantitatively recover the scaling behavior of the halo density profile from N-body simulations.
Association between Selected Body Composition, Blood Pressure, and Musculoskeletal Fitness in Nigerian Children

Background. Evidence shows that obesity negatively influences children’s physical, physiological and musculoskeletal well-being. Objectives. This study examined the relationship between triponderal mass index (TMI), blood pressure (BP), and musculoskeletal fitness (MSF) in a cross-sectional sample of school children in Ado-Ekiti, Southwest Nigeria. Methods. Body weight, stature, systolic and diastolic blood pressures (SBP & DBP), and three components of musculoskeletal fitness, comprising sit and reach (SR), sit-up (SUP), standing broad jump (SBJ), and 20-meter shuttle runs, were assessed in 1229 (boys=483, 39.3%; girls=746, 60.7%) school children (age range: 9-13 years). Results. A significant positive correlation was found between TMI and SBP (r= 0.182, P < 0.01), and DBP (r= 0.090, P < 0.01), while TMI and SR (r= -0.067, P < 0.05) and SBJ (r= -0.246, P < 0.01) yielded a substantial inverse relationship. Children with severe underweight were significantly less probable to perform well in SBJ (OR= 0.96, CI= 0.94; 0.99) and 20-meter shuttle run (OR= 1.39, CI= 1.22; 1.61). Childhood overweight was associated with increased SBP (OR= 1.03, CI= 1.02; 1.05) and poor SBJ (OR= 0.98, CI= 0.97; 0.99). Obese children were significantly associated with increased SBP (OR= 1.04, CI= 1.02; 1.06), poor SR (OR= 0.92, CI= 0.87; 0.98) and SBJ (OR= 0.94, CI= 0.93; 0.96) scores compared to age- and sex-specific norms. Conclusion. Elevated BP and poor musculoskeletal fitness could adversely affect the well-being of undernourished, overweight, and obese Nigerian children. Findings implicate the need to implement dietary and physical activity intervention programs to promote desirable health-related quality of life in school-going children. test; muscular endurance: sit-up test; explosive leg power: standing broad jump, and shuttle run
A New Two-fluid Radiation-hydrodynamical Model for X-Ray Pulsar Accretion Columns

Previous research centered on the hydrodynamics in X-ray pulsar accretion columns has largely focused on the single-fluid model, in which the super-Eddington luminosity inside the column decelerates the flow to rest at the stellar surface. This type of model has been relatively successful in describing the overall properties of the accretion flows, but it does not account for the possible dynamical effect of the gas pressure. On the other hand, the most successful radiative transport models for pulsars generally do not include a rigorous treatment of the dynamical structure of the column, instead assuming an ad hoc velocity profile. In this paper, we explore the structure of X-ray pulsar accretion columns using a new, self-consistent, “two-fluid” model, which incorporates the dynamical effect of the gas and radiation pressures, the dipole variation of the magnetic field, the thermodynamic effect of all of the relevant coupling and cooling processes, and a rigorous set of physical boundary conditions. The model has six free parameters, which we vary in order to approximately fit the phase-averaged spectra in Her X-1, Cen X-3, and LMC X-4. In this paper, we focus on the dynamical results, which shed new light on the surface magnetic field strength, the inclination of the magnetic field axis relative to the rotation axis, the relative importance of gas and radiation pressures, and the radial variation of the ion, electron, and inverse-Compton temperatures. The results obtained for the X-ray spectra are presented in a separate paper.
Progenitors of gravitational wave mergers: binary evolution with the stellar grid-based code ComBinE

The first gravitational wave detections of mergers between black holes and neutron stars represent a remarkable new regime of high-energy transient astrophysics. The signals observed with LIGO-Virgo detectors come from mergers of extreme physical objects which are the end products of stellar evolution in close binary systems. To better understand their origin and merger rates, we have performed binary population syntheses at different metallicities using the new grid-based binary population synthesis code ComBinE. Starting from newborn pairs of stars, we follow their evolution including mass loss, mass transfer and accretion, common envelopes and supernova explosions. We apply the binding energies of common envelopes based on dense grids of detailed stellar structure models, make use of improved investigations of the subsequent Case BB Roche-lobe overflow and scale supernova kicks according to the stripping of the exploding stars. We demonstrate that all the double black hole mergers, GW150914, LVT151012, GW151226, GW170104, GW170608 and GW170814, as well as the double neutron star merger GW170817, are accounted for in our models in the appropriate metallicity regime. Our binary interaction parameters are calibrated to match the accurately determined properties of Galactic double neutron star systems, and we discuss their masses and types of supernova origin. Using our default values for the input physics parameters, we find a double neutron star merger rate of about 3.0 Myr-1 for Milky-Way equivalent galaxies. Our upper limit to the merger-rate density of double neutron stars is R≃400 yr-1 Gpc-3 in the local Universe (z=0).
Epidemiologia dos traumatismos crânio-encefálicos em Portugal.

The epidemiology of traumatic brain injury (TBI) was studied in Portugal, using data of hospital admissions and total mortality, in 1994, 1996 and 1997. A rate of incidence of 151/100,000 for 1994 and of 137/100,000, for 1996 and 1997, was observed. Although in the last two years the incidence was the same, the mortality has decreased. The global rate of mortality for 1997 was of 17/100,000, with highest risk in age groups of 20 to 29 years (20/100,000) and after the age of 80 years (54/100,000). About 95% of deaths occur outside hospital and 5% after hospital admission. The incidence rate ratio of TBI was 1.8:1 in hospital admissions and of 3.4:1 in mortality, comparing men to women. This last difference is a constant throughout the life span but much more enhanced between 20 and 39 years of age.
The Relationship Between Spirituality and Psychological Wellness: A Serial Multi-Mediation Analysis

This study aims to investigate the relationships between spirituality, psychological well-being, compassion, and life satisfaction among adults, as well as the mediating role of compassion and life satisfaction in the relationship between spirituality and psychological well-being among adults. Using the relational survey model, 418 adults were recruited to participate in the study. The Spirituality Scale, Psychological Well-Being Scale, Compassion Scale, and Life Satisfaction Scale were used to collect data. Pearson Product-Moment Analysis was used to examine the links between adults' spirituality, psychological well-being, compassion, and life satisfaction. Using the Regression-Based Bootstrapping Technique and Serial Multiple Mediator Variable analysis, the researchers investigated the mediating function of compassion and life satisfaction in the link between spirituality and the psychological well-being of adults. The sequential mediation function of compassion and life pleasure was found to be significant in the link between adult spirituality and psychological well-being.
The Impact of Accounting Information Systems on Bank Performance: The Case of Lebanon

This study's goal is to look at the impact of accounting information systems on the performance of Lebanese Banks. This research examines the relevance of using the Accounting Information System (AIS) obtained by Accounting Software (AS) to achieve business success for the owners and management of the organization. Accounting software features such as efficiency; accuracy; dependability; data quality; and simplicity of use are used in this study as a predictor of bank performance. The data for this study was gathered by a survey that included 100 responses from employees of 35 Lebanese commercial banks, which were then studied. The Statistical Package for Social Sciences (SPSS, version 20) was used to perform correlation and multilinear regression analyses on the data. Efficiencies, dependability, and simplicity of use all correlated positively with bank performance, but data quality and accuracy negatively related to bank performance.
Absorption Line Survey of H3+ toward the Galactic Center Sources I. GCS 3-2 and GC IRS3

We present high-resolution (R = 20000) spectroscopy of H + 3 absorption toward the luminous Galactic center sources GCS 3-2 and GC IRS 3. With the efficient wavelength coverage afforded by Subaru IRCS, six absorption lines of H + 3 have been detected in each source from 3.5 to 4.0 µm, three of which are new. In particular the 3.543 µm absorption line of the R(3,3) l transition arising from the metastable (J,K)=(3,3) state has been tentatively detected for the first time in the interstellar medium, where previous observations of H + 3 had been limited to absorption lines from the lowest levels: (J,K )=( 1,0) of ortho-H + 3 and (1,1) of para-H + 3 . The H + 3 absorption toward the Galactic center takes place in dense and diffuse clouds along the line of sight as well as the molecular complex close to the Galactic nucleus. At least four kinematic components are found in the H + 3 absorption lines. We suggest identifications of the velocity components with those of H I ,C O, and H2CO previously reported from radio and infrared observations. H + 3 components with velocities that match those of weak and sharp CO and H2CO lines are attributed to diffuse clouds. Our observation has revealed a striking difference between the absorption profiles of H + 3 and CO, demonstrating that the spectroscopy of H + 3 provides information complementary to that obtained from CO spectroscopy. The tentative detection of the R(3,3) l line and the non-detection of spectral lines from other J> 1 levels provide observational evidence for the metastability of the (3,3) level, which is theoretically expected. This suggests that other metastable J = K levels with higher J may also be populated.
Common Peroneal Nerve Palsy at the Level of Proximal Fibula After Total Hip Arthroplasty: A Case Report

Sciatic nerve injury is a well-known devastating complication and is the most commonly involved nerve after total hip arthroplasty (THA). Most of these injuries occur at the level of the hip and surgery site rather than a distal location. In this case report, a 62-year-old male presented with common peroneal nerve (CPN) palsy at the level of the knee immediately after undergoing left THA via posterior hip approach. This likely occurred due to direct compression during the surgical positioning or intraoperative leg manipulation. It was associated with excruciating uncontrolled neuropathic pain around the ipsilateral lateral leg and foot and absence of motor function. The patient's THA was performed elsewhere, seven weeks prior to his presentation to us. His clinical examination and electromyographic (EMG) findings confirmed focal peroneal nerve entrapment around the neck of the fibula. An urgent distal peroneal nerve decompression was performed followed by a dramatic improvement in the pain. Consequently, the patient discontinued all pain medications within three days after the decompression. On follow up, he demonstrated remarkable improvement in his motor and sensory functions. In conclusion, direct or indirect CPN injury at the level of the knee is extremely rare after THA. Early distal peroneal nerve decompression after THA can be beneficial in selected patients based on the clinical presentation and EMG findings.
‘A sense of community and camaraderie’: Increasing student engagement by supplementing an LMS with a Learning Commons Communication Tool

Whether by choice or pushed online by Covid, higher education is increasingly happening in digital spaces with digital tools forming a critical part of learning and teaching contexts. While reviews suggest such tools positively influence student engagement, research tends to be generic and more is needed to understand how and why specific tools can influence student engagement, learning, and success. Relationships are a key influence on student engagement and online students often feel disconnected and isolated; tools which increase interaction and communication with staff and among students are therefore important. This qualitative study examined how two specific tools, Discord and Teams, work in conjunction with an LMS to benefit student engagement and learning. Nineteen students were interviewed, and the data thematically analysed. Findings show the tools facilitated communication, helped build relationships and communities, encouraged help-seeking within the course and, with Discord, with the wider disciplinary community. These usages led to improved belonging, wellbeing, engagement, and learning. The perceived norms of the digital spaces were an important influence on student tool usage. A key contribution of this research is defining a new tool categorisation, Learning Commons Communication Tools (LCCT), which better describes the informal and organic spaces created by such tools.
Hippocalcin-Like 1 blunts liver lipid metabolism to suppress tumorigenesis via directly targeting RUVBL1-mTOR signaling

Rationale: Hepatocellular carcinoma (HCC) is one of the most severe cancers worldwide, with few effective targeted therapies for HCC. Lipid metabolic reprogramming is emerged as a hallmark of cancer metabolism that guides response to antitumoral therapies. Such lipid metabolic alteration in cancers is critically regulated by the mammalian target of rapamycin mTOR, which is considered as a promising therapeutic target. Despite efforts, mTOR inhibitors (mTORi) have produced limited response clinically, partly due to incomplete knowledge of mTORC1 addiction in cancers. Methods: CRISPR-Cas9 system was used to establish Hpcal1 null mice. The liver cancer model in mice was generated using Hpcal1-deficient mice with diethylnitrosamine (DEN) /CCL4 or MYC/Trp53-/- via hydrodynamic tail-vein injection. RNA-sequencing (RNA-seq) was used to identify potential signaling pathways. The expression of HPCAL1 and mTOR signaling were determined using quantitative polymerase chain reaction (qPCR), western blot and immunohistochemistry. The role of Hpcal1 in liver tumorigenesis and its response to mTORi was assessed by CCK-8 measurements, colony formation assay and in mouse model. Results: In this study, we identified hippocalcin-like protein 1 (HPCAL1) as an important negative regulator of de novo lipid biosynthesis and mTOR signaling activation, limiting liver tumorigenesis and establishing a metabolic vulnerability of HCC in mice. Genetic loss of HPCAL1 rendered HCC mTORC1-addicted and sensitive to mTORi AZD-8055 in vitro and in vivo. Importantly, HPCAL1 expression was inversely correlated with the levels of mTOR phosphorylation and several critical lipid biosynthesis enzymes in human specimens. Mechanistically, HPCAL1 directly bound to RuvB Like AAA ATPase 1 (RUVBL1), inhibiting the assembly of TEL2-TTI1-TTI2 (TTT)-RUVBL complex and subsequent leading the mTOR signaling suppression. Conclusion: We uncover a metabolic vulnerability and mTOR addiction in HCC with HPCAL1 loss that provides a selective therapeutic window for HCC with mTORC1 hyperactivation using mTORi.
The Double-lined Spectrum of LBV 1806–20

Despite much theoretical and observational progress, there is no known firm upper limit to the masses of stars. Our understanding of the interplay between the immense radiation pressure produced by massive stars in formation and the opacity of infalling material is subject to theoretical uncertainties, and many observational claims of "the most massive star" have failed the singularity test. LBV 1806-20 is a particularly luminous object, L ∼ 106 L⊙, for which some have claimed very high mass estimates (Minitial > 200 M⊙), based in part on its similarity to the Pistol star. We present high-resolution near-infrared spectroscopy of LBV 1806-20, showing that it is possibly a binary system with components separated in velocity by ∼70 km s-1. If correct, then this system is not the most massive star known, yet it is a massive binary system. We argue that a binary, or merged, system is more consistent with the ages of nearby stars in the LBV 1806-20 cluster. In addition, we find that the velocity of VLSR = 36 km s-1 is consistent with a distance of 11.8 kpc, a luminosity of 106.3 L⊙, and a system mass of ∼130 M⊙.