Miracle-dz/UniFAR-FTUs huggingface dataset:
Star-formation in nuclear clusters and the origin of the Galactic center apparent core distribution

Abstract Nuclear stellar clusters (NSCs) are known to exist around massive black holes (MBHs) in galactic nuclei. Two formation scenarios were suggested for their origin: build-up of NSCs and Continuous in-situ star-formation. Here we study the effects of star formation on the build-up of NSCs and its implications for their long term evolution and their resulting structure. We show that continuous star-formation can lead to the build-up of an NSC with properties similar to those of the Milky-way NSC. We also find that the general structure of the old stellar population in the NSC with in-situ star-formation could be very similar to the steady-state Bahcall-Wolf cuspy structure. However, its younger stellar population does not yet achieve a steady state. In particular, formed/evolved NSCs with in-situ star-formation contain differential age-segregated stellar populations which are not yet fully mixed. Younger stellar populations formed in the outer regions of the NSC have a cuspy structure towards the NSC outskirts, while showing a core-like distribution inwards; with younger populations having larger core sizes.
Elite Capture and Corruption: The Influence of Elite Collusion on Village Elections and Rural Land Development in China

Abstract This article presents a qualitative empirical study of elite collusion and its influence on village elections and rural land development in China. Drawing on ethnographic data collected from two Chinese villages, it investigates how village cadres collude with other rural elites, using bribery, gift-giving and lavish banquets, to establish reciprocal ties with township officials and other public officials. Meanwhile, the officials make use of formal organizations to corruptly obtain profits and form alliances with village elites. The article examines how rural elites, especially village cadres, use this collusion to profit from the misuse of villagers’ collectively owned assets, the manipulation of village elections and the suppression of anti-corruption protests. It also offers new descriptive evidence of how recent reforms designed to strengthen the Party's overall leadership in rural governance may have actually facilitated elite capture and grassroots corruption.
A multi-wavelength investigation of Seyfert 1.8 and 1.9 galaxies

We focus on determining the underlying physical cause of a Seyfert galaxy’s appearance as type a 1.8 or 1.9. Are these “intermediate” Seyfert types typical Seyfert 1 nuclei reddened by central dusty tori or by nuclear dust lanes/spirals in the narrow-line region? Or, are they similar to NGC 2992, objects that have intrinsically weak continua and weak broad emission lines? Our study compares measurements of the reddenings of the narrow and broad-line regions with each other and with the X-ray column derived from XMM Newton 0.5−10 keV spectra to determine the presence and location of dust in the line of sight for a sample of 35 Seyfert 1.8s and 1.9s. From this, we find that Seyfert 1.9s are an almost equal mix of low-flux objects with unreddened broad line regions, and objects with broad line regions reddened by an internal dust source, either the torus or dust structures on the same size scale as the narrow line region. The 1.9s that recieved this designation due to a low continuum flux state showed variable type classifications. All three of the Seyfert 1.8s in our study are probably in low continuum states. Many objects have been misclassified as Seyfert 1.8/1.9s in the past, probably due to improper [N II]/Hα deconvolution leading to a false detection of weak broad Hα. INDEX WORDS: Active galaxies, Seyfert galaxies, Optical spectroscopy, X-ray spectroscopy, Astronomical dust A MULTI-WAVELENGTH INVESTIGATION OF SEYFERT 1.8 AND 1.9 GALAXIES
03 08 16 9 v 1 2 9 A ug 2 00 3 Resonance fluorescence of a trapped three-level atom

We investigate theoretically the spectrum of resonance fluorescence of a harmonically trapped atom, whose internal transitions are Λ–shaped and driven at two-photon resonance by a pair of lasers, which cool the center–of–mass motion. For this configuration, photons are scattered only due to the mechanical effects of the quantum interaction between light and atom. We study the spectrum of emission in the final stage of laser–cooling, when the atomic center-of-mass dynamics is quantum mechanical and the size of the wave packet is much smaller than the laser wavelength (Lamb–Dicke limit). We use the spectral decomposition of the Liouville operator of the master equation for the atomic density matrix and apply second order perturbation theory. We find that the spectrum of resonance fluorescence is composed by two narrow sidebands — the Stokes and anti-Stokes components of the scattered light — while all other signals are in general orders of magnitude smaller. For very low temperatures, however, the Mollow–type inelastic component of the spectrum becomes visible. This exhibits novel features which allow further insight into the quantum dynamics of the system. We provide a physical model that interprets our results and discuss how one can recover temperature and cooling rate of the atom from the spectrum. The behaviour of the considered system is compared with the resonance fluorescence of a trapped atom whose internal transition consists of two-levels.
EWOM, Kepercayaan, Citra Merek Terhadap Niat Pembelian Ulang pada Poliklinik Penyakit dalam di RS ABC Jakarta

Mengelola aspek bisnis rumah sakit telah menjadi konsekuensi alami dari era globalisasi.Hasil survey pendahuluan niat pembelian ulang di RS ABC Jakarta, 30% mengatakan akan kembali lagi ke RS ini bila ingin melakukan pemeriksaan ulang. Niat Pembelian Ulang dalam layanan jasa di rumah sakit merupakan kecenderungan pelanggan untuk memanfaatkan layanan kembali RS di masa mendatang. Penelitian ini menggunakan metode kuantitatif dengan desain penelitian kausal Structural Equation Model (SEM) berbasis kovarian yakni AMOS, Bertujuan untuk menganalisis dampak yang dapat menambah nilai niat pembelian ulang di rumah sakit. Penelitian ini menggunakan sampel perhitungan hair sebanyak 300 orang pasien rawat jalan poli penyakit dalam. Hasil penelitian: E-WoM berpengaruh positif signifikan terhadap niat pembelian ulang melalui kepercayaan pasien berdasarkan hasil pengukuran nilai CR menggunakan SEM dengan bantuan sobel test. Berdasarkan hasil penelitian, implikasi dalam penelitian ini menunjukkan besarnya pengaruh E-wom dan citra merek melalui kepercayaan pasien yang dapat meningkatkan niat pembelian ulang, ditandai dengan perubahan sistem tarif RS dan relationship marketing dalam memanfaatkan niat pembelian ulang
The Impact of Obesity on Male Reproductive Functions

Obesity is a major factor that can contribute to the risk of infertility in men. This study is aimed at assessing the impact of obesity on the parameters of male fertility. The study utilizes the comparative analysis of different research to determine how weight gain and obesity can interfere with the reproductive functions in men. The findings of this study indicate the strong association of obesity with co-morbidities, including male infertility, that is seriously affecting the male population. It also recognizes the role of management options such as weight reduction and antioxidant support for the prevention of obesity-linked infertility in men.
Bowing parameter of the band-gap energy of GaNxAs1−x

We report a study of nitrogen incorporation in GaAs using a N rf plasma source. The N composition can be increased by lowering the growth temperature. X-ray diffraction shows no phase separation. Optical absorption measurements indicate that GaNxAs1−x is a direct band-gap material in the N composition range studied (x⩽14.8%), rather than a semimetal, contrary to theoretical predictions based on Van Vechten’s model. Analyzing the N composition dependence of the band-gap energy of the alloy indicates a composition-dependent bowing parameter, consistent with the first-principles supercell calculations [L. Bellaiche, S. H. Wei, and A. Zunger, Phys. Rev. B 54, 17 568 (1996)].
Depth and motion discontinuities

Depth and motion discontinuities arise wherever a light ray incident on a camera sensor meets a discrete change in the depth or motion of the surfaces in the world. Because these discontinuities tend to coincide with occlusions and with the boundaries of objects, they provide useful information for a number of applications in computer vision, such as camera control, compression, and tracking. Moreover, because they have simple, precise definitions depending only upon the physics of the scene, they are unaffected by subjective considerations. The first part of this thesis presents an algorithm to detect depth discontinuities from a stereo pair of images by matching pixels in corresponding scanlines and then propagating information between those scanlines. It uses a new measure of pixel dissimilarity that is provably insensitive to image sampling. The algorithm is fast and is shown to produce good results on difficult images containing untextured, slanted surfaces. Then some work aimed at detecting motion discontinuities from a monocular image sequence is described, along with a discussion of why this is a harder problem. A preliminary algorithm is given which tracks sparse features throughout a sequence, groups them according to an affine motion model, and traces the boundaries between the groups. Results show that the technique is promising but needs future work. Then two recent maximum-flow-based stereo algorithms are compared, showing their ability to work well on textured, fronto-parallel surfaces as well as their inability to handle untextured, slanted surfaces. We extend one of the techniques to solve stereo or motion correspondence with textured, slanted surfaces. Finally, an algorithm that uses the knowledge of discontinuities to track a person's head is described. Modeling the head as an ellipse and concentrating on the intensity edges around the perimeter as well as the color of the interior, the system is able to automatically control a camera in real time to follow a person moving around an unmodified environment. Extensive experimentation shows the algorithm's robustness with respect to full 360-degree out-of-plane rotation, severe but brief occlusion, arbitrary camera movement, and a dynamic background.
Sums of fractional parts and sum of restricted divisors of a number

Let us consider a strictly increasing sequence of positive integers an such that A(x) is the distribution function of the sequence. That is, A(x)=∑ an≤ x 1. We study the sum ∑ an≤ x ans{x / an} and apply this formula in the study of the sum of a-divisors of a number. The distribution functions A(x) considered are very general. The methods used are very elementary.
PENGARUH WORK-FAMILY CULTURE TERHADAP WORK-FAMILY CONFLICT PEGAWAI YANG BEKERJA DARI RUMAH

Pandemi Covid-19 di Indonesia membuat pemerintah memberlakukan sejumlah kebijakan, salah satunya bekerja dari rumah (work from home/WFH). WFH bagi pekerja di Indonesia masih menjadi sesuatu yang asing, sehingga sulit menempatkan urusan pekerjaan dan keluarga sesuai dengan kebutuhan. Penelitian ini membahas mengenai pengaruh bekerja dari rumah dengan work-family conflict dan akan melihat pula bagaimana work-family culture berpengaruh terhadap work-family conflict dengan menggunakan metode kuantitatif melalui survei. Hasil penelitian menunjukkan bahwa bekerja dari rumah menyebabkan work-family conflict, serta work-family culture berpengaruh terhadap work-family conflict. Karena adanya pengaruh inilah, maka organisasi disarankan menerapkan work-family culture yang mendukung pekerjaan pegawainya, sehingga tingkat work-family conflict tidak menjadi lebih tinggi. The Covid-19 pandemic in Indonesia has forced the government to implement many policies, one of which is working from home (WFH). Working from home is still an uncommon concept in Indonesia, so it is difficult for workers to place between work and family matters. This study discusses the effect of working from home with work-family conflict and will also see how work-family culture affects work-family conflict using quantitative methods through surveys. The results show that working from home causes work-family conflict, and work-family culture affects work-family conflict. Because of this influence, it is recommended that organizations implement a work-family culture that supports their employees’ work so that work-family conflicts do not become higher.
Aktivitas Antibakteri Ekstrak Etanol Daun Pepaya (Carica papaya Linn.) Terhadap Bakteri Pseudomonas aeruginosa

Pseudomonas aeruginosa is a Gram-negative bacterium that can cause nosocomial infections. The use of antibiotics in the treatment of non-adherent P. aeruginosa infections increases the risk of antibiotic resistance. Efforts to find new antibiotic compounds from plants continue to be carried out. Papaya leaves are widely spread among the public, which are often used as ingredients for vegetables and have antibacterial potential because they contain papain enzymes and a class of flavonoid compounds. The purpose of this study was to analyze the antibacterial activity of the ethanol extract of papaya leaves (Carica papaya Linn.) against P. aeruginosa by finding the value of the Minimum Inhibitory Concentration (MIC) and calculating the index activity value against the positive control. The method used in this research is Kirby-Bauer (disc diffusion method) with several variations of the test concentration. The results showed that the diameter of the inhibition zone at a concentration of 500 mg/mL was in the strong category with an inhibition zone diameter of 10.87 ± 0.06 mm. MIC at a concentration of 3.125 mg/mL. The index activity value was greatest at a concentration of 500 mg/mL with a value of 0.668. So it can be concluded that the ethanol extract of papaya leaves (Carica papaya Linn.) has inhibitory activity against Pseudomonas aeruginosa.
The Predictability of Echocardiography in Children with Primary Pulmonary Hypertension and Its Comparison with Cardiac Catheterization Parameters

Background: Pulmonary hypertension (PH) is a serious problem with high mortality in children, so early diagnosis of this condition is critical. Echocardiography is a non-invasive hemodynamic assessment tool, which facilitates serial follow-ups for hypertensive patients. Objectives: The aim of this study was to evaluate the importance of echocardiographic parameters in children with PH and their correlation with cardiac catheterization parameters. Methods: This cross-sectional study was performed on the records of 20 children with primary PH referred to the pediatric Cardiology Department and clinic of Imam Reza Hospital, Mashhad, Iran, during 2001-2016. The correlation between echocardiography and cardiac catheterization findings was assessed to determine the predictability of echocardiographic parameters in primary pulmonary hypertension. Results: Based on the findings, the mean values of tricuspid regurgitation pressure gradient (TRPG) and peak early diastolic transpulmonary valve pressure gradient (PRPG) were 76.33 ± 22.8 and13.18 ± 44.2 mmHg, respectively. The mean of RA systolic pressure, RA diastolic pressure, RA mean pressure were 13.62 ± 4.43, 5.12 ± 2.1, and 6.77 ± 4.08, respectively. The analysis of data showed a significant correlation between systolic pulmonary artery pressure (PAP) and TRPG (r = 0.62; P = 0.008). We found no significant correlation between systolic PAP and PRPG (r = 0.58; P = 0.03). Additionally, diastolic PAP significantly correlated with TRPG (r = 0.67; P = 0.003) and PRPG (r = 0.64; P = 0.04). Moreover, a significant correlation was observed between mean PAP and TRPG (r = 0.66; P = 0.004) and PRPG (r = 0.64; P = 0.04). Conclusions: Echocardiographic approach is a safe and sensitive method for diagnosis of primary pulmonary hypertension. We found a strong correlation between mean PAP and two variables of TRPG and PRPG.
Scaling laws and intermittent structures in solar wind MHD turbulence

Thirteen months of velocity and magnetic field data from ISEE space experiment have been used to calculate spectra and structure functions using Haar wavelets technique in the range from 1 minute to about 1 day. Using conditioned structure function definition we have been able to eliminate the intermittency effects in the spectra and thus to evidentiate which kind of phenomenology of nonlinear cascade between Kolmogorov and Kraichnan is taking place in Solar Wind turbulence. By the same technique the most intermittent structures in solar wind turbulence can also be identified and they turn out to be either shock waves or one dimensional current sheets, at variance with ordinary fluid intermittency, where the most intermittent structures are two dimensional vortices.
Safe consensus control of cooperative-competitive multi-agent systems via differential privacy

This paper investigates a safe consensus problem for cooperative-competitive multi-agent systems using a diﬀerential privacy (DP) approach. Considering that the agents simultaneously interact cooperatively and competitively, we propose a novel DP bipartite consensus algorithm, which guarantees that the DP strategy only works on competitive pairs of agents. We then prove that the proposed algorithm can achieve the mean square bipartite consensus and ( p, r )- accuracy. Furthermore, a diﬀerential privacy analysis is conducted, which shows that the performance of privacy protection is positively correlated with the number of neighbors. Thus, a practical method is established for the agents to select their own privacy levels. Finally, the simulation results are presented to demonstrate the validity of the proposed safe consensus algorithm.
Pengaruh Intervensi Edukasi terhadap Pemahaman Berolahraga Pada Masyarakat Indonesia Berusia 18 Sampai 64 Tahun

Edukasi adalah proses pengajaran dengan tujuan agar dapat mengembangkan pengetahuan dan potensi. Berdasarkan SUSENAS –tahun 2018 terdapat 35,7% masyarakat Indonesia yang aktif berolahraga. Data ini menunjukan bahwa hanya terdapat kurang lebih sepertiga masyarakat Indonesia yang aktif berolahraga. Melihat manfaat olahraga yang begitu banyak, maka diharapkan masyarakat memiliki pemahaman yang baik dan benar mengenai kegiatan berolahraga. Untuk itu, penelitian ini dilakukan untuk mengetahui bagaimana edukasi memberikan pengaruh terhadap pemahaman masyarakat Indonesia berusia 18 sampai 64 tahun, dalam hal berolahraga demi mencapai masyarakat Indonesia yang sehat dan masyarakat yang memiliki kualitas kesehatan yang baik dan juga berdampak pada angka harapan hidup nasional. Penelitian ini menggunakan metode studi eksperimental (one group pretest-posttest design) terhadap 110 sampel yang memenuhi kriteria inklusi, dengan teknik sampling purposive dan uji korelasi Wilcoxon. Responden mengikuti seminar daring kemudian mengisi kuesioner sebelum dan sesudah intervensi untuk diukur tingkat pengetahuannya mengenai berolarhaga. Hasil penelitian menunjukan perbedaan tingkat rata-rata pengetahuan sebelum seminar daring dan sesudah seminar daring. Rata-rata nilai tes sebelum adalah sebesar 79,18 dan rata-rata nilai tes sesudah adalah sebesar 96,82 dari total skor 100. Hal ini berarti bahwa, edukasi meningkatkan pemahaman tentang berolahraga dengan P<0,001. Oleh karena itu, edukasi terbukti meningkatkan pemahaman berolaraga pada masyarakat Indonesia berusia 18 sampai 64 tahun.
Bactericidal, protozoacidal, and algicidal efficacy of Sanodrink: a complete water sanitizer in poultry farm

Introduction and Aim: The growth in poultry industries due to increasing demand for meat and egg production has set off the establishment of various poultry farms on a commercial basis. But with an increase in demand for production from poultry farms, the need for maintenance of a healthy and clean environment has also become a necessity for disease free and quality production. As these pose a greater challenge in the production management, the development of a versatile compound that could be beneficial in overcoming all the microbial challenges faced in a poultry farm is also necessary. Materials and Methods: Sanodrink is a complete water sanitizer that is a highly effective bactericidal, protozoacidal and algicidal agent which could be used for the drinking water storage tanks of poultry farm. It is effective in killing all the commonly encountered microbes like E. coli, Giardia spp. etc., and algae that are commonly found in the poultry farm water tank. Results: It contains quaternary ammonium compounds which are microbicidal and potent inhibitors of both pathogenic and non-pathogenic bacterial, algal, and protozoal growth and survival. Quaternary ammoniums are also good surfactants as they lower the superficial tension of water. Furthermore, Sanodrink maintains its action in hard water also and in the presence of organic matter. Conclusion: Our present study aims at evaluating the microbicidal efficacy of Sanodrink as a water sanitizer that can be used at poultry farms.
Nullity of quantum discord of two-qubit X-state systems

The conditions are established for nullity of quantum discord for mixed states of a general two-qubit system whose dynamical behaviour is given by an X-state form density matrix. It is found that quantum discord can vanish at a finite time even in the presence of correlations between qubits. The degeneracy of the populations of the combined states of the qubits and the multi-qubit quantum coherences are shown to be responsible for vanishing of the discord. We illustrate our considerations by examining the coherent-state Tavis-Cummings model in which two qubits interact dispersively with the cavity field. The disappearance of the discord is shown to be dependent on the initial atomic conditions that it may occur at a discrete instance or periodically at discrete instances redistributed over whole range of the evolution time. The nullity of the discord is interpreted as resulting from equal preparation of the spin anti-correlated and spin correlated product states in superposition~states.
A FEM-based deformable model for the 3D segmentation and tracking of the heart in cardiac MRI

We present a new approach for the segmentation and tracking of the heart from cardiac MR multi-slice and multi-phase image sequences. An a priori model of the object to be segmented is defined. It is composed of a topology and a geometry of the object, and associated elastic material properties. The a priori model is immersed into the image data and submitted to a force field which pulls the model's interfaces towards the image edges. The equilibrium of the system is achieved by the minimization of the model's energy using the finite element method. The active region model (ARM) has been successfully applied to the segmentation and tracking of the heart in cardiac MRI. The deformed model directly provides clinically relevant parameters such as volumes and also physical and local parameters such as strains and stresses.
Mn induced ferromagnetism and modulated topological surface states in Bi2Te3

The ferromagnetism and topological surface states manipulated by manganese in topological insulator Bi2Te3 are investigated by means of first-principles calculations. Our results indicate that substitution Mn for Bi can induce spin-polarized hole states with a total magnetic moments of 4.0 μB, and sufficient hole carrier density is required to obtain sustained magnetization. The obvious gap at the Dirac point coinciding with sharp surface state appears as Mn doped into Bi2Te3 because the magnetic interactions break the time reversal symmetry. The study paves a way to explore topological magnetoelectric effect and spintronic device applications.