Miracle-dz/UniFAR-FTUs huggingface dataset:
Degradation Mechanism of AlGaAs/InGaAs Power Pseudomorphic High-Electron-Mobility Transistors under Large-Signal Operation

We have comprehensively investigated the degradation mechanism of output power in AlGaAs/InGaAs pseudomorphic high-electron-mobility transistors (PHEMTs) under large-signal operation. The degradation of output power is caused by the decrease in maximum drain current (Imax) around the knee voltage (Vk) with an increase in drain resistance (Rd). The decrease in Imax originates from a degradation layer containing a significant amount of oxygen formed at the drain recess surface region. This layer causes a reduced carrier density in the drain region underneath, resulting in a decreased Imax and an increased Rd. The decrease in Imax is accelerated with increasing drain voltage, temperature, and humidity. These results suggest that the degradation of output power in the PHEMTs is mainly determined by the growth of a corrosion layer owing to an electrochemical reaction between O2 and/or H2O and the semiconductor surface. We successfully suppress the output power degradation due to this electrochemical corrosion reaction with the help of a special surface treatment prior to the deposition of a passivation film on the recess surface. We demonstrate a highly reliable RF operation of PHEMTs in air even without a hermetic package.
D-branes in unoriented non-critical strings and duality in SO(N) and Sp(N) gauge theories

We exhibit exact conformal field theory descriptions of SO(N) and Sp(N) pairs of Seiberg-dual gauge theories within string theory. The = 1 gauge theories with flavour are realized as low energy limits of the worldvolume theories on D-branes in unoriented non-critical superstring backgrounds. These unoriented backgrounds are obtained by constructing exact crosscap states in the SL(2, )/U(1) coset conformal field theory using the modular bootstrap method. Seiberg duality is understood by studying the behaviour of the boundary and crosscap states under monodromy in the closed string parameter space.
Neutron irradiation of MgB211: From the enhancement to the suppression of superconducting properties

In this letter, we present the effect of neutron irradiation up to fluences of 1.4×1020cm−2 on the superconducting properties of MgB2. In order to obtain a homogeneously distributed disorder, the experiment was carried out on bulk samples prepared with the B11 isotope. Up to fluences of 1018cm−2, the critical temperature (Tc) is slightly diminished (36K) and the superconducting properties are significantly improved; the upper critical field is increased from 13.5T to 20.3T at 12K and the irreversibility field is doubled at 5K. For the largest neutron fluence, Tc is suppressed down to 9.2K and the superconducting properties come out strongly degraded.
Peran Gender Santriwan dan Santriwati di Pondok Pesantren Al-Muqoddasah

Gender is a fundamental thing in social life, where one of the most important aspects of Gender is Gender Roles, Gender Roles are behavioral characteristics expected by society for men and women which include attitudes, attributes, behaviors and values that are followed by the local community. Changes in social condition and community conditions must also be balanced with a more open understanding of gender, especially on Gender Roles, because if there are gaps in Gender Roles, it will result in Gender discrimination. in the Adolescent Phase, individuals will want to know more about their identity and what role they should play in society. So it is necessary to understand gender roles and self-understanding in order to form gender roles that are in accordance with their gender identity. This study aims to determine the gender role orientation of santriwan and santriwati in Al Muqoddasah Islamic boarding school. This research was conducted with a quantitative descriptive approach with the survey method. The subjects of this study were 138 students. The data collection technique was carried out by using a questionnaire that was distributed offline to students in the Al Muqoddasah boarding school. The results of this study are that there are as many as 31% of subjects who have an androgynous gender role, as many as 25% of subjects have a Masculine gender role, as many as 23% of the subjects have a Feminine gender role, and as many as 21% of the subjects have an Undifferentiated gender role.
Study Pure Annihilation Decays Bs0(B̄s0) → D±π∓ in PQCD Approach

The rare decays Bs0 → D±π∓ and B̄s0 → D∓π± can occur only via annihilation-type diagrams in the standard model. In this paper, we calculate branching ratios of these decays in perturbative QCD approach ignoring soft final state interaction. From our calculation, we find that their branching ratios are at 𝒪(10-6) with large CP asymmetry, which may be measured in LHC-b experiment in the future.
Exotic decays of the 125 GeV Higgs boson at future e+e– colliders

The discovery of unexpected properties of the Higgs boson would offer an intriguing opportunity to shed light on some of the most profound puzzles in particle physics. Beyond Standard Model (BSM) decays of the Higgs boson could reveal new physics in a direct manner. Future electron-positron lepton colliders operating as Higgs factories, including CEPC, FCC-ee and ILC, with the advantages of a clean collider environment and large statistics, could greatly enhance sensitivity in searching for these BSM decays. In this work, we perform a general study of Higgs exotic decays at future e+e- lepton colliders, focusing on the Higgs decays with hadronic final states and/or missing energy, which are very challenging for the High-Luminosity program of the Large Hadron Collider (HL-LHC). We show that with simple selection cuts, (10-3-10-5) limits on the Higgs exotic decay branching fractions can be achieved using the leptonic decaying spectator Z boson in the associated production mode e+e-→ ZH. We further discuss the interplay between detector performance and Higgs exotic decays, and other possibilities of exotic decays. Our work is a first step in a comprehensive study of Higgs exotic decays at future lepton colliders, which is a key area of Higgs physics that deserves further investigation.
Reflexive Han-Ness, Narratives of Moral Decline, Manchurian Subjects and “Mass” Societal Others: A Study of the Hanfu Movement in the Cities of Beijing, Chengdu, Shanghai, Wuhan, and Xi’an

In recent years, a small but growing body of scholarly work has emerged on the Hanfu movement in China. Researchers have drawn attention to globalisation, westernisation, national lifestyles, and development, the renaissance of Chinese culture, Han racism, Han ethnocentrism and xenophobia as drivers for the movement. In this article, we suggest that of all the extant literature that currently exists on the movement, the ethnography conducted by Kevin Carrico is the most accurate portrayal of the movement as it stands. However, and drawing upon visual and interview-based fieldwork with members of the movement in 2013 and 2015, our main argument is that existing scholarship has not attended to several nuances in the movement that problematise ideas of race, the way the movement views the recent past and the othering of Manchurian subjects. Unpacking these problematics, this study advances upon existing scholarship: 1) by drawing attention to the way Hanfu enthusiasts demonstrate a great deal of reflexivity around the notion of race; 2) by focusing on the approaches by which Hanfuists interpret the Chinese past beyond narratives of Han ethnic decline; 3) by investigating the mode by which Hanfuists indirectly “other” Manchurian subjects; and 4) by exploring the manner in which Hanfuists hold a broad or “mass” societal “other” as responsible for a new era of moral decline in contemporary China.
The Hardness-Duration Correlation in the Two Classes of Gamma-Ray Bursts

The well-known hardness-duration correlation of gamma-ray bursts (GRBs) is investigated using data from the 4B catalog. We find that, while the hardness ratio and the duration are obviously correlated for the entire set of the 4B catalog, they are not at all correlated for the two subsets divided at the duration of 2 seconds. However, for other subsets with comparable sizes, the two quantities are significantly correlated. The following conclusions are thus reached: (1) the existence of two classes of GRBs is confirmed; (2) the hardness ratio and the duration are not at all correlated for any of the two classes; (3) different classes of GRBs have different distributions of the hardness ratio and the duration, and it is this difference that causes the correlation between the two quantities for the entire set of bursts.
Perioperative Management for Non-Thyroidal Surgery in Thyroid Dysfunction

Thyroid hormone exerts effects across all organ systems. Hence, patients with thyroid dysfunction are at a risk of numerous complications. The stresses encountered during the perioperative period may exacerbate underlying thyroid disorders, potentially precipitating decompensation, and even death. Thus, it is of the utmost importance for the clinician to comprehend the mechanisms by which thyroid disease may complicate surgery and postoperative recovery and to optimize the status of thyrotoxic and hypothyroid patients. This article describes the adverse effects of thyroid dysfunction in patients undergoing nonthyroid surgery and recommends treatment approaches aimed at appropriate build-up to decrease perioperative risk.
Propagation of dolphin echolocation signals

The propagational characteristics of high‐frequency echolocation signals (peak energies above 100 kHz) of the Atlantic bottlenose dolphin (Tursiops truncatus) in open waters were determined by a series of measurements conducted while the animal performed a target‐detection task. The animal was trained to station in a “chin‐rest” device so that the vertical beam pattern could be measured with a vertical array of hydrophones and the horizontal beam pattern could be measured with a horizontal array. The animal's signals as a function of distance from the animal out to 2 m were measured with a horizontal array of hydrophones placed directly in front of the animal. These measurements were used to study the relationship of the signals in the nearfield and farfield of the animal's sonic beam. The relationship of the signals measured with a contact hydrophone place on the animal's rostrum and on the melon with the signals measured at 1 m and at the target was also studied. It was found that the 3‐dB beamwidth was approximately 8.5° for both the horizontal and vertical beams. The major axis of the vertical beam was directed at an angle of 20° above the plane defined by the animal's teeth. it was also found that the farfield begins at approximately 0.5–0.6 m from the tip of the animal's rostrum.
Molecular Characterization of the Dual Effect of the GPER Agonist G-1 in Glioblastoma

Glioblastoma (GBM) is the most common primary brain tumor in adults. Despite conventional treatment, consisting of a chirurgical resection followed by concomitant radio–chemotherapy, the 5-year survival rate is less than 5%. Few risk factors are clearly identified, but women are 1.4-fold less affected than men, suggesting that hormone and particularly estrogen signaling could have protective properties. Indeed, a high GPER1 (G-protein-coupled estrogen receptor) expression is associated with better survival, especially in women who produce a greater amount of estrogen. Therefore, we addressed the anti-tumor effect of the GPER agonist G-1 in vivo and characterized its molecular mechanism of action in vitro. First, the antiproliferative effect of G-1 was confirmed in a model of xenografted nude mice. A transcriptome analysis of GBM cells exposed to G-1 was performed, followed by functional analysis of the differentially expressed genes. Lipid and steroid synthesis pathways as well as cell division processes were both affected by G-1, depending on the dose and duration of the treatment. ANGPTL4, the first marker of G-1 exposure in GBM, was identified and validated in primary GBM cells and patient samples. These data strongly support the potential of G-1 as a promising chemotherapeutic compound for the treatment of GBM.
Dark matter from early decays

Two leading dark matter candidates from supersymmetry and other theories of physics beyond the standard model are WIMPs and weak scale gravitinos. If the lightest stable particle is a gravitino, then a WIMP will decay into it with a natural lifetime of order a month {approx}M{sub pl}{sup 2}/M{sub weak}{sup 3}. We show that if the bulk of dark matter today came from decays of neutral particles with lifetimes of order a year or smaller, then it could lead to a reduction in the amount of small scale substructure, less concentrated halos and constant density cores in the smallest mass halos. Such beneficial effects may therefore be realized naturally, as discussed by Cembranos, Feng, Rajaraman, and Takayama, in the case of supersymmetry.
Scientific Advancements in Composite Materials for Aircraft Applications: A Review

Recent advances in aircraft materials and their manufacturing technologies have enabled progressive growth in innovative materials such as composites. Al-based, Mg-based, Ti-based alloys, ceramic-based, and polymer-based composites have been developed for the aerospace industry with outstanding properties. However, these materials still have some limitations such as insufficient mechanical properties, stress corrosion cracking, fretting wear, and corrosion. Subsequently, extensive studies have been conducted to develop aerospace materials that possess superior mechanical performance and are corrosion-resistant. Such materials can improve the performance as well as the life cycle cost. This review introduces the recent advancements in the development of composites for aircraft applications. Then it focuses on the studies conducted on composite materials developed for aircraft structures, followed by various fabrication techniques and then their applications in the aircraft industry. Finally, it summarizes the efforts made by the researchers so far and the challenges faced by them, followed by the future trends in aircraft materials.
Mapping the stability of stellar rotating spheres via linear response theory

Rotation is ubiquitous in the Universe, and recent kinematic surveys have shown that early-type galaxies and globular clusters are no exception. Yet the linear response of spheroidal rotating stellar systems has seldom been studied. This paper takes a step in this direction by considering the behaviour of spherically symmetric systems with differential rotation. Specifically, the stability of several sequences of Plummer spheres is investigated, in which the total angular momentum, as well as the degree and flavour of anisotropy in the velocity space are varied. To that end, the response matrix method is customized to spherical rotating equilibria. The shapes, pattern speeds and growth rates of the systems’ unstable modes are computed. Detailed comparisons to appropriate N-body measurements are also presented. The marginal stability boundary is charted in the parameter space of velocity anisotropy and rotation rate. When rotation is introduced, two sequences of growing modes are identified corresponding to radially and tangentially biased anisotropic spheres, respectively. For radially anisotropic spheres, growing modes occur on two intersecting surfaces (in the parameter space of anisotropy and rotation), which correspond to fast and slow modes, depending on the net rotation rate. Generalized, approximate stability criteria are finally presented.
A two-sample Anderson-Darling rank statistic

SUMMARY A two-sample Anderson-Darling statistic is introduced and small-sample percentage points are given. An approximation to the distribution is also given. The statistic is related to Wilcoxon's and Mood's rank statistics. Asymptotic power comparisons are made with other two-sample rank statistics for shifts in location and scale.
A Glimpse on the Relationship between Feynman Integral and Integrable Systems

Kami mengimbau secara ringkas kajian-kajian terkini yang mengaitkan konsep kamiran Feynman dan sistem-sistem terkamir. Hal ini merangkumi usaha kami untuk menjadikan kamiran lintasan Feynman sebagai suatu entiti matematik yang bermakna. Katakunci: Kamiran Feynman; Sistem Terkamir; Konjektur Virasoro. We briefly review recent attempts to relate the concept of Feynman integral and integrable systems. This constitutes an endeavour on our part in making the Feynman path integral into a mathematically meaningful entity. Keywords: Feynman Integral; Integrable System; Virasoro Conjecture.
The Faraday screen near the nucleus of the CSS quasar 3C 138

Compact Steep Spectrum (CSS) sources are known to show strong optical line emission (Gelderman & Whittle 1994) which is generally considered to be due to the interaction between the radio jet and the ISM. This argument is strengthened by the HST observations of Axon et al. (2000) which show this emission is frequently associated with the radio jet. Previous observations of the CSS quasar 3C 138 (Cotton et al. 1997) have shown that the bulk of the jet has very low amounts of Faraday rotation whereas the inner jet shows very high Faraday rotation (≈−5000 rad m −2 ). The inner jet is dominated by moving components which allows observing the fine scale of the Faraday screen as the components move behind it. We report the results of such a monitoring campaign which indicated that there is structure in the Faraday screen on the pc and possibly sub pc scale. Motions of the polarized component slowed dramatically during the course of these observations, limiting the region probed. The observations also strongly suggest that the polarized emission from the inner jet is seen through limited holes in a dense Faraday screen. In this case, the observed variations in Faraday rotation are possibly the result of jet-ISM interactions.
Connection between hysteresis and thermal relaxation in magnetic materials

The connection between hysteresis and thermal relaxation in magnetic materials is studied from both the experimental and the theoretical viewpoint. Hysteresis and viscosity effects are measured in Finemet-type nanocrystalline materials above the Curie temperature of the amorphous phase, where the system consists of ferromagnetic nanograins imbedded in a paramagnetic matrix. The hysteresis loop dependence on field rate, the magnetization time decay at different constant fields, and the magnetization curve shape after field reversal are all consistent with a single value of the fluctuation field ${H}_{f}\ensuremath{\simeq}8{\mathrm{A}\mathrm{}\mathrm{m}}^{\ensuremath{-}1}$ (at $430\ifmmode^\circ\else\textdegree\fi{}\mathrm{C}). $ In addition, it is shown that all data collapse onto a single curve ${M(H}_{\mathrm{ath}}),$ when magnetization is plotted as a function of a properly defined field ${H}_{\mathrm{ath}},$ dependent on time and field rate. Experimental data are interpreted by assuming that the system consists of an assembly of elementary bistable units, distributed in energy levels and energy barriers. The approximations under which one predicts data collapse onto a single curve ${M(H}_{\mathrm{ath}})$ are discussed.
Massive Stars and the Energy Balance of the Interstellar Medium. I. The Impact of an Isolated 60 M☉ Star

We present results of numerical simulations carried out with a two-dimensional radiation hydrodynamics code in order to study the impact of massive stars on their surrounding interstellar medium. This first paper deals with the evolution of the circumstellar gas around an isolated 60 M☉ star. The interaction of the photoionized H II region with the stellar wind bubble forms a variety of interesting structures like shells, clouds, fingers, and spokes. These results demonstrate that complex structures found in H II regions are not necessarily relics from the time before the gas became ionized but may result from dynamical processes during the course of the H II region evolution. We have also analyzed the transfer and deposit of the stellar wind and radiation energy into the circumstellar medium until the star explodes as a supernova. Although the total mechanical wind energy supplied by the star is negligible compared to the accumulated energy of the Lyman continuum photons, the kinetic energy imparted to the circumstellar gas over the star's lifetime is 4 times higher than for a comparable windless simulation. Furthermore, the thermal energy of warm photoionized gas is lower by some 55%. Our results document the necessity to consider both ionizing radiation and stellar winds for an appropriate description of the interaction of OB stars with their circumstellar environment.
Simplicity in AdS Perturbative Dynamics

We investigate analytic properties of loop-level perturbative dynamics in pure AdS, with the scalar effective theories with non-derivative couplings as a prototype. Explicit computations reveal certain (perhaps unexpected) simplicity regarding the pole structure of the results, in both the Mellin amplitude and a closely related object that we call Mellin pre-amplitude. Correspondingly we propose a pair of conjectures for arbitrary diagrams at all loops, based on non-trivial evidence up to two loops (and higher loops in a special class of diagrams). We also inspect the structure of residues at poles in the physical channels for several one-loop examples up to a 4-point box, as well as a two-loop double-triangle diagram. These analyses are performed using the recursive construction of Mellin (pre-)amplitudes recently prescribed in arXiv:1710.01361, for which we provide detailed derivation and generalization in this paper. Along the way we derive a set of alternative diagrammatic rules for tree (pre-)amplitudes, which are better suited to our loop construction. On the mathematical aspect we share some new thoughts on improving the contour analysis of multi-dimensional Mellin integrals, which are the essential ingredients that make our approach practical.
Dual-component plasma lens models

In contrast to the converging, achromatic behaviour of axisymmetric gravitational lenses, diverging frequency-dependent lensing occurs from refraction due to a distribution of over-dense axisymmetric plasma along an observer's line of sight. Such plasma lenses are particularly interesting from the point of view of astronomical observations because they can both magnify and dim the appearance of background sources as a function of frequency. Plasma lensing is believed to be involved in a number of separate phenomena involving the scintillation of radio pulsars, extreme scattering events of background radio sources and may also play a role in the generation of fast radio bursts. These lensing phenomena are believed to occur in dense environments, in which there may be many density perturbations between an observer and background source. In this work we generalize individual plasma lens models to produce dual component lenses using families of plasma lens models previously studied in the literature, namely the exponential and softened power-law lenses. Similar to binary gravitational lens models, these dual component plasma lenses feature a rich and complex critical and caustic morphology, as well as generate more complicated light curves. We map the number of criticals formed for a given component separation and angular size, and highlight a relevant degeneracy between two particular models. This work provides an argument in favor of close monitoring of extreme scattering events in progress in order to break such model degeneracies.