Miracle-dz/UniFAR-FTUs huggingface dataset:
XO-2b : a Prograde Planet with Negligible Eccentricity and an Additional Radial Velocity Variation

We present precise radial velocities of XO-2 taken with the Subaru HDS, covering two transits of XO-2b with an interval of nearly two years. The data suggest that the orbital eccentricity of XO-2b is consistent with zero within 2$\sigma$ ($e=0.045\pm0.024$) and the orbit of XO-2b is prograde (the sky-projected spin-orbit alignment angle $\lambda=10^{\circ}\pm72^{\circ}$). The poor constraint of $\lambda$ is due to a small impact parameter (the orbital inclination of XO-2b is almost 90$^{\circ}$). The data also provide an improved estimate of the mass of XO-2b as $0.62\pm0.02$ $M_{\rm Jup}$. We also find a long-term radial velocity variation in this system. Further radial velocity measurements are necessary to specify the cause of this additional variation.
Continuum limits of matrix product states

We determine which translationally invariant matrix product states have a continuum limit, that is, which can be considered as discretized versions of states defined in the continuum. To do this, we analyse a fine-graining renormalization procedure in real space, characterise the set of limiting states of its flow, and find that it strictly contains the set of continuous matrix product states. We also analyse which states have a continuum limit after a finite number of a coarse-graining renormalization steps. We give several examples of states with and without the different kinds of continuum limits.
Research trends and perspectives on the usefulness of oxytocin as a biomarker for postpartum depression

As postpartum depression has become a major problem, it is necessary to identify mothers who need intensive support to cope with this disorder. Therefore, by summarizing literature from the past five years, this study aimed to clarify the current progress of research on the usefulness of oxytocin as a biomarker for postpartum depression; it also aimed to discuss the prospects for future research based on these findings. Literature published from 2016 to 2020 that examined the relationship among postpartum psychological state, postpartum depression, and oxytocin using the Medical Journal Web and PubMed for local and international literature were reviewed respectively. The search was conducted using the following keywords: “oxytocin,” “postpartum,” “depression,” “anxiety,” “mentality,” “sensation” and “psychology. ” Furthermore, research articles (original papers and research reports) were the main focus of the search. Seven articles were extracted from the search. All of them reported an association between oxytocin and maternal psychological state. However, the views among them differed, and studies on the usefulness of oxytocin as a biomarker of postpartum depression were limited. Although various methods have been utilized to measure oxytocin, this study highlights the need for more consistent research methods, accounting for individual differences and factors that may influence oxytocin levels, to ensure accurate oxytocin measurement. This will enable the development of preventative interventions in
Nucleosynthesis inside accretion disks and outflows formed during core collapse of massive stars

We investigate nucleosynthesis inside the gamma-ray burst (GRB) accretion disks and in the outflows launched from these disks mainly in the context of Type II collapsars. We report the synthesis of several unusual nuclei like 31P, 39K, 43Sc, 35Cl and various isotopes of titanium, vanadium, chromium, manganese and copper in the disk. We also confirm the presence of iron-group and alpha-elements in the disk, as shown by previous authors. Much of these heavy elements thus synthesized are ejected from the disk and survive in the outflows. While emission lines of several of these elements have been observed in the X-ray afterglows of GRBs by BeppoSAX, Chandra, XMM-Newton etc., Swift seems to have not found these lines yet.
Unruh effect and condensate in and out of an accelerated vacuum

We revisit the Unruh effect to investigate how finite acceleration would affect a scalar condensate. We discuss a negative thermal-like correction associated with acceleration. From the correspondence between thermo-field dynamics and acceleration effects we give an explanation for this negative sign. Using this result and solving the gap equation we show that the condensate should increase with larger acceleration.
Determination of Anatomical Variation of Mental Foramen and Evaluation of Anterior Loop in Karachi Population Using CBCT

Aim: To determine the anatomical variation in mental foramen and to evaluate the anterior loop in the population of Karachi with the use of cone beam computed tomography (CBCT). Study design: Prospective Study Place and duration: The Department Of Dental And Maxillofacial Surgery, Dr. Ishrat-ul-Ibad Khan Institute of Oral Health and Sciences Dow University of Health Sciences Karachi during September 2021 to February 2022. Methodology: A group of 160 subjects were included in this study and the simple convenient sampling technique was used to obtain data for the research. CBCT images of all patients were obtained. Results: 160 CBCT scans were obtained for this study, 76 females and the remaining 84 were males. Mental foramen was present below the second premolar and between the first and the second premolars most commonly, respectively. On the right side the mental foramen was 67.5% and 68.1% on the left. The most common shape of the anterior loop was Type-I, where Anterior Loop (AL) is unnoticeable and the anatomy is Y shaped as classified by solar et al. The AL was present more commonly on the left side 65% compared to the right side which was 59.4%. No correlation was found between anterior loop presentation and incisive canal of the mandibular region according to the Shapiro Wilk normality test (P≥0.05). Conclusion: It is evident in this study that the location of the anterior loop and mental foramen is variable in our study population. Therefore it is mandated that CBCT images should be used before any invasive procedure is undertaken in the MF region. Keywords: Anatomical variation, Mental foramen, Anterior loop, Mental Nerve, Cone Beam Computed Tomography (CBCT).
Random field Ising model: statistical properties of low-energy excitations and equilibrium avalanches

With respect to the usual thermal ferromagnetic transitions, the zero-temperature finite-disorder critical point of the random field Ising model (RFIM) has the peculiarity of involving some ‘droplet’ exponent θ that enters the generalized hyperscaling relation 2 − α = ν(d − θ). In the present paper, to better understand the meaning of this droplet exponent θ beyond its role in the thermodynamics, we discuss the statistics of low-energy excitations generated by an imposed single spin-flip with respect to the ground state, as well as the statistics of equilibrium avalanches, i.e. the magnetization jumps that occur in the sequence of ground states as a function of the external magnetic field. The droplet scaling theory predicts that the distribution dl/l1 + θ of the linear size l of low-energy excitations transforms into the distribution ds/s1 + θ/df for the size s (number of spins) of excitations of fractal dimension df (s ∼ ldf). In the non-mean-field region d < dc, droplets are compact df = d, whereas in the mean-field region d > dc, droplets have a fractal dimension df = 2θ leading to the well-known mean-field result ds/s3/2. Zero-field equilibrium avalanches are expected to display the same distribution ds/s1 + θ/df. We also discuss the statistics of equilibrium avalanches integrated over the external field and finite-size behaviors. These expectations are checked numerically for the Dyson hierarchical version of the RFIM, where the droplet exponent θ(σ) can be varied as a function of the effective long-range interaction J(r) ∼ 1/rd + σ in d = 1.
Bogomolny equations and conformal transformations in curved space

The coupling of the Higgs field through the Ricci tensor, put forward by Balakrishna and Wali, is derived using a conformal rescaling of the metric. Earlier results on 'Bogomolny-type' equations in curved space, by Comtet and others, are recovered. The procedure can be generalized to any static background metric.
Multiferroic double perovskites: Opportunities, issues, and challenges

A well-controlled coupled behavior in magnetoelectric materials at room temperature remains challenging. We demonstrate that the self-ordered A2B′B″O6 (e.g., A=La, B′=Mn, and B″=Ni) double perovskites provide a unique alternative opportunity to control and/or to induce such behavior in oxides. Herein, we outline and discuss the various challenges and bottleneck issues related to this class of materials.
Study of the spectrum of inflaton perturbations

We examine the spectrum of inflaton fluctuations resulting from any given long period of exponential inflation. Infrared and ultraviolet divergences in the inflaton dispersion summed over all modes do not appear in our approach. We show how the scale invariance of the perturbation spectrum arises. We also examine the spectrum of scalar perturbations of the metric that is created by the inflaton fluctuations that have left the Hubble sphere during inflation and the spectrum of density perturbations that they produce at reentry after inflation has ended. When the inflaton dispersion spectrum is renormalized during the expansion, we show (for the case of the quadratic inflaton potential) that the density perturbation spectrum approaches a mass-independent limit as the inflaton mass approaches zero, and remains near that limiting value for masses less than about 1/4 of the inflationary Hubble constant. We show that this limiting behavior does not occur if one only makes the Minkowski space subtraction, without the further adiabatic subtractions that involve time derivatives of the expansion scale factor a(t). We also find a parametrized expression for the energy density produced by the change in a(t) as inflation ends. If the end of inflation were sufficiently abrupt, then the temperaturemore » corresponding to this energy density could be very significant. We also show that fluctuations of the inflaton field that are present before inflation starts are not dissipated during inflation and could have a significant observational effect today. The mechanism for this is caused by the initial fluctuations through stimulated emission from the vacuum. « less
MarsQuakeNet: A More Complete Marsquake Catalog Obtained by Deep Learning Techniques

NASA's Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) seismometer has been recording Martian seismicity since early 2019, and to date, over 1,300 marsquakes have been cataloged by the Marsquake Service (MQS). Due to typically low signal‐to‐noise ratios (SNR) of marsquakes, their detection and analysis remain challenging: while event amplitudes are relatively low, the background noise has large diurnal and seasonal variations and contains various signals originating from the interactions of the local atmosphere with the lander and seismometer system. Since noise can resemble marsquakes in a number of ways, the use of conventional detection methods for catalog curation is limited. Instead, MQS finds events through manual data inspection. Here, we present MarsQuakeNet (MQNet), a deep convolutional neural network for the detection of marsquakes and the removal of noise contamination. Based on three‐component seismic data, MQNet predicts segmentation masks that identify and separate event and noise energy in time‐frequency domain. As the number of cataloged MQS events is small, we combine synthetic event waveforms with recorded noise to generate a training data set. We apply MQNet to the entire continuous 20 samples‐per‐second waveform data set available to date (>1,000 Martian days), for automatic event detection and for retrieving denoised amplitudes. The algorithm reproduces all high quality, as well as majority of low quality events in the manual, carefully curated MQS catalog. Furthermore, MQNet detects ∼60% additional events that were previously unknown with mostly low SNR, that are verified in manual review. Our analysis on the event rate confirms seasonal trends and shows a substantial increase in the second Martian year.
Exoplanet Atmospheres: Physical Processes

At the dawn of the first discovery of exoplanets orbiting sun-like stars in the mid-1990s, few believed that observations of exoplanet atmospheres would ever be possible. After the 2002 Hubble Space Telescope detection of a transiting exoplanet atmosphere, many skeptics discounted it as a one-object, one-method success. Nevertheless, the field is now firmly established, with over two dozen exoplanet atmospheres observed today. Hot Jupiters are the type of exoplanet currently most amenable to study. Highlights include: detection of molecular spectral features; observation of day-night temperature gradients; and constraints on vertical atmospheric structure. Atmospheres of giant planets far from their host stars are also being studied with direct imaging. The ultimate exoplanet goal is to answer the enigmatic and ancient question, "Are we alone? " via detection of atmospheric biosignatures. Two exciting prospects are the immediate focus on transiting super Earths orbiting in the habitable zone of M-dwarfs, and ultimately the spaceborne direct imaging of true Earth analogs.
A DETAILED STUDY OF GIANTS AND HORIZONTAL BRANCH STARS IN M68: ATMOSPHERIC PARAMETERS AND CHEMICAL ABUNDANCES

In this paper, we present a detailed high-resolution spectroscopic study of post main sequence stars in the globular cluster (GC) M68. Our sample, which covers a range of 4000 K in T eff ? > , and 3.5 dex in log(g), is comprised of members from the red giant, red horizontal, and blue horizontal branch, making this the first high-resolution GC study covering such a large evolutionary and parameter space. Initially, atmospheric parameters were determined using photometric as well as spectroscopic methods, both of which resulted in unphysical and unexpected T eff ? > , log(g), &xgr; t ? > , and [Fe/H] combinations. We therefore developed a hybrid approach that addresses most of these problems, and yields atmospheric parameters that agree well with other measurements in the literature. Furthermore, our derived stellar metallicities are consistent across all evolutionary stages, with ⟨ ? > [Fe/H] ⟩ ? > = −2.42 (σ = 0.14) from 25 stars. Chemical abundances obtained using our methodology also agree with previous studies and bear all the hallmarks of GCs, such as a Na-O anti-correlation, constant Ca abundances, and mild r-process enrichment.
Effect of grain refinement on enhancing critical current density and upper critical field in undoped MgB2 ex situ tapes

Ex situ powder-in-tube MgB2 tapes prepared with ball-milled, undoped powders showed a strong enhancement of the irreversibility field H∗, the upper critical field Hc2, and the critical current density Jc(H) together with the suppression of the anisotropy of all of these quantities. Jc reached 104 A/cm2 at 4.2 K and 10 T, with an irreversibility field of about 14 T at 4.2 K, and Hc2 of 9 T at 25 K, high values for not-doped MgB2. The enhanced Jc and H∗ values are associated with significant grain refinement produced by milling of the MgB2 powder, which enhances grain boundary pinning, even if at the same time also reducing the connectivity from about 12% to 8%. Although enhanced pinning and diminished connectivity are in opposition, the overall influence of ball milling on Jc is positive because the increased density of grains with a size comparable with the mean free path produces strong electron scattering that substantially increases Hc2, especially Hc2 perpendicular to the Mg and B planes.
NEW X-RAY-SELECTED PRE-MAIN-SEQUENCE MEMBERS OF THE SERPENS MOLECULAR CLOUD

The study of young stars no longer surrounded by disks can greatly add to our understanding of how protoplanetary disks evolve and planets form. We have used VLT/FLAMES optical spectroscopy to confirm the youth and membership of 19 new young diskless stars in the Serpens Molecular Cloud, identified at X-ray wavelengths. Spectral types, effective temperatures, and stellar luminosities were determined using optical spectra and optical/near-infrared photometry. Stellar masses and ages were derived based on pre-main-sequence evolutionary tracks. The results yield remarkable similarities for age and mass distribution between the diskless and disk-bearing stellar populations in Serpens. We discuss the important implications these similarities may have on the standard picture of disk evolution.
The distance and properties of hydrogen clouds in the Leading Arm of the Magellanic System

We present a high-resolution study of five high-velocity clouds in the Magellanic Leading Arm region. This is a follow-up study of our widefield Parkes survey of the region in order to probe the multiphase structures of the clouds and to give an insight to their origin, evolution and distance. High-resolution data were obtained from the Australia Telescope Compact Array. By combining with single-dish data from the Galactic All-Sky Survey (GASS), we are able to probe compact and diffuse emission simultaneously. We identify resolved and unresolved clumps. Physical parameters were derived for both diffuse structure and compact clumps. The latter are cold with typical velocity linewidths of 5 km/s. We find a gradient in thermal halo pressure, hydrogen density and HI column density of HVC as a function of Galactic latitude. This is possibly the first observational evidence of varying distance in the Leading Arm region, with the leading part of the Leading Arm (LA II and III) probably being closer to the Galactic disc than the trailing end (LA I).
Analisa Peran Employee Engagement Dalam Memediasi Work Environment, Leadership, Work Motivation, Job Satisfaction, Dan Training and Development Terhadap Employee Performance Bank Umum

Employee engagement is needed to improve the performance of company resources to compete. Employees who feel engaged are one of the keys to the company's success. This study aims to analyze the role of employee engagement in mediating the work environment, leadership, motivation, job satisfaction, and training and development on employee performance. The population and sample of this study were employees of 5 commer-cial banks with the most assets in Batam City, Indonesia, namely BRI, Mandiri Bank, BCA, BNI, and BTN. The total num-ber of respondents who were collected using the quota sampling method was 353 with a spread of 80 respondents from each bank. The data obtained from the distribution of the question-naires were processed using PLS-SEM (Partial Least Square). In the results of the study, employee engagement and work environment have a positive significant effect on employee performance and employee engagement successfully mediates the relationship between work environment and employee performance, while training and development, leadership and job satisfaction have no effect on employee performance but are sig-nificantly positive when mediated through employee engagement. Motivation variable has no direct or indirect effect on employee performance. The limitations of this study are that the research sample has not been able to represent the population as a whole and the distribution of the questionnaire only uses 1 alternative.
Drell-Yan process as an avenue to test a noncommutative standard model at the Large Hadron Collider

We study the Drell-Yan process at the Large Hadron Collider in presence of the noncommutative extension of standard model. Using the Seiberg-Witten map, we calculate the production cross-section to the first order in the noncommutative parameter $\Theta_{\mu\nu}$. Although this idea is evolving for long, limited amount of phenomenological analysis was done so far and dominantly in the context of linear collider. Some outstanding feature from this non-minimal noncommutative standard model not only modify the couplings over SM production channel, also allow additional nonstandard vertices which can play a significant role. Hence in the Drell-Yan process, as studied in present analysis, one also needs to account for gluon fusion process at the tree level. Some of the characteristic signatures such as oscillatory azimuthal distributions are outcome of the momentum dependent effective couplings. We explore the noncommutative scale $\Lambda_{NC} \ge 0.4~\rm{TeV}$ considering different machine energy ranging from $7~\rm{TeV}$ to $13~\rm{TeV}$.
Formulation and Evaluation of Facial Wash containing Snow Mushroom (Tremella fuciformis) Extract

The aims of this study were to determine and evaluate the results of the physicochemical characteristic of snow mushroom (Tremella fuciformis) facial wash, and to determine the acceptability of the snow mushroom (Tremella fuciformis) extract facial wash which has the best physicochemical characteristics. In this study, the extraction of snow mushroom (Tremella fuciformis) used UAE (Ultrasound-Assisted Extraction) and ethanol as solvent with various concentrations, 96% (F1), 75% (F2), and 50% (F3). Furthermore, the extract will be formulated into facial wash and evaluated for physicochemical characteristics. The parameters of physicochemical characteristics include organoleptic, pH, density, viscosity, spreadability, and foamability. The difference in the concentration of ethanol as menstruum of snow fungus (Tremella fuciformis) extraction did not significantly affect the organoleptic composition of facial wash, but it did affect the physicochemical characteristics of facial wash, where higher ethanol concentrations resulted in lower pH, higher density and viscosity, smaller spreadability, and foamability that meets specifications. The results of the evaluation of physicochemical characteristics showed that F1 had the best specifications and continued hedonic testing to determine the acceptability of snow mushroom (Tremella fuciformis) extract facial wash. The results of the hedonic test on F1 showed good acceptance regarding the parameters of appearance, foam, and effects after using facial wash; as well as sufficient acceptability related to aroma and viscosity parameters.
Regrowth of stellar disks in mature galaxies: The two component nature of NGC 7217 revisited with VIRUS-W†⋄

Abstract We have obtained high spectral resolution (R ≈ 9000), integral field observations of the three spiral galaxies NGC 3521, NGC 7217 and NGC 7331 using the new fiber-based Integral Field Unit instrument VIRUS-W at the 2.7 m telescope of the McDonald Observatory in Texas. Our data allow us to revisit previous claims of counter rotation in these objects. A detailed kinematic decomposition of NGC 7217 shows that no counter rotating stellar component is present. We find that NGC 7217 hosts a low dispersion, rotating disk that is embedded in a high velocity dispersion stellar halo or bulge that is co-rotating with the disk. Due to the very different velocity dispersions (≈ 20 km s−1 vs. 150 km s−1) , we are further able to perform a Lick index analysis on both components separately which indicates that the two stellar populations are clearly separated in (Mgb,〈Fe〉) space. The velocities and dispersions of the faster component are very similar to those of the interstellar gas as measured from the [O iii] emission. Morphological evidence of active star formation in this component further suggests that NGC 7217 may be in the process of (re)growing a disk inside a more massive and higher dispersion stellar halo.