Miracle-dz/UniFAR-FTUs huggingface dataset:
Spherical membranes in Matrix theory

We consider membranes of spherical topology in uncompactified Matrix theory. In general for large membranes Matrix theory reproduces the classical membrane dynamics up to 1/N corrections; for certain simple membrane configurations, the equations of motion agree exactly at finite N. We derive a general formula for the one-loop Matrix potential between two finite-sized objects at large separations. Applied to a graviton interacting with a round spherical membrane, we show that the Matrix potential agrees with the naive supergravity potential for large N, but differs at subleading orders in N. The result is quite general: we prove a pair of theorems showing that for large N, after removing the effects of gravitational radiation, the one-loop potential between classical Matrix configurations agrees with the long-distance potential expected from supergravity. As a spherical membrane shrinks, it eventually becomes a black hole. This provides a natural framework to study Schwarzschild black holes in Matrix theory.
Knowledge, Attitude and Practices towards Tuberculosis Disease among Health Sciences Undergraduate Students: A Cross-sectional Study

Tuberculosis (TB) has become one of the significant public health concerns with increasing mortality and morbidity rate in Malaysia. Undergraduate students of Health sciences are considered at high risk of getting TB. Lack of understanding about the source and transmission of the disease, as well as attitude and practices of the students may be a contributing factor. Therefore
1 Security of Distance-Bounding : A Survey

GILDAS AVOINE, INSA Rennes, IRISA, IUF, France MUHAMMED ALI BINGÖL, TÜBİTAK BİLGEM, and Sabanci University, Turkey IOANA BOUREANU, Imperial College London, United Kingdom SRDJAN ČAPKUN, ETH Zurich, Switzerland GERHARD HANCKE, City University of Hong Kong, Hong Kong SAR SÜLEYMAN KARDAŞ, Batman University, Batman, Turkey CHONG HEE KIM, Université catholique de Louvain, Louvain-la-Neuve, Belgium CÉDRIC LAURADOUX, INRIA, France BENJAMIN MARTIN, Université catholique de Louvain, Louvain-la-Neuve, Belgium JORGE MUNILLA, University of Málaga, Spain ALBERTO PEINADO, University of Málaga, Spain KASPER BONNE RASMUSSEN, University of Oxford, United Kingdom DAVE SINGELÉE, Katholieke Universiteit Leuven and iMinds, Belgium ASLAN TCHAMKERTEN, Telecom ParisTech, Paris, France ROLANDO TRUJILLO-RASUA, University of Luxembourg, SnT, Luxembourg SERGE VAUDENAY, EPFL, Lausanne, Switzerland
Online Dependent Task Assignment in Preference Aware Spatial Crowdsourcing

Spatial crowdsourcing platforms have become increasingly popular in people's daily life. A fundamental problem in spatial crowdsourcing is task assignment, which assigns spatial tasks to the workers appropriately in order to satisfy certain objectives. Previous studies usually focus on the real-time micro-task allocation, which does not consider the dependency relationships among tasks. To address this limitation, in this article, we define and formulate a new problem, called Online Dependent Task Assignment (ODTA) in preference aware spatial crowdsourcing. We first prove that ODTA is <inline-formula><tex-math notation="LaTeX">$\mathcal {NP}$</tex-math><alternatives><mml:math><mml:mi mathvariant="script">NP</mml:mi></mml:math><inline-graphic xlink:href="yang-ieq1-3217125.gif"/></alternatives></inline-formula>-hard. Then, we design a threshold-based algorithm in the adversarial order model and obtain a near-optimal theoretical bound on the competitive ratio. More importantly, considering the random order arrival model, we further present three algorithms based on a two-stage framework, namely ODTA-Greedy, ODTA-Greedy-OP and ODTA-OPT, which are more effective with a constant competition ratio of <inline-formula><tex-math notation="LaTeX">$\frac{1}{8}$</tex-math><alternatives><mml:math><mml:mfrac><mml:mn>1</mml:mn><mml:mn>8</mml:mn></mml:mfrac></mml:math><inline-graphic xlink:href="yang-ieq2-3217125.gif"/></alternatives></inline-formula>, <inline-formula><tex-math notation="LaTeX">$\frac{1}{8}$</tex-math><alternatives><mml:math><mml:mfrac><mml:mn>1</mml:mn><mml:mn>8</mml:mn></mml:mfrac></mml:math><inline-graphic xlink:href="yang-ieq3-3217125.gif"/></alternatives></inline-formula> and <inline-formula><tex-math notation="LaTeX">$\frac{1}{4}$</tex-math><alternatives><mml:math><mml:mfrac><mml:mn>1</mml:mn><mml:mn>4</mml:mn></mml:mfrac></mml:math><inline-graphic xlink:href="yang-ieq4-3217125.gif"/></alternatives></inline-formula>, respectively. Experimental results on both synthetic and real datasets show that our proposed ODTA-OPT approach outperforms the representative approaches in terms of overall utility.
Total hadron-hadron cross sections at high energies

We calculate total hadron-hadron cross sections at high energies using the Low-Nussinov twogluon model of the Pomeron. The gluon exchange is represented by a phenomenological potential including screened color-Coulomb, screened confining, and spin-spin interactions. We use boundstate wave functions obtained from a potential model for mesons, and a Gaussian wave function for a proton. We evaluate total cross sections for collisions involving �, K, �, �, D, J/ , ′ , �, � ′ , and the proton. We find that the total cross sections increase with the square of the sum of the root-mean square radii of the colliding hadrons, but there are variations arising from the spin-spin interaction. We also calculate the total cross sections of a mixed-color charmonium state on a pion and on a proton. The dependence of the total cross section on the size and the color state of the charmonium is investigated.
Oxygen-modulated quantum conductance for ultrathin HfO2 -based memristive switching devices

Memristive switching devices, candidates for resistive random access memory technology, have been shown to switch off through a progression of states with quantized conductance and subsequent noninteger conductance (in terms of conductance quantum G0). We have performed calculations based on density functional theory to model the switching process for a Pt-HfO2-Pt structure, involving the movement of one or two oxygen atoms. Oxygen atoms moving within a conductive oxygen vacancy filament act as tunneling barriers, and partition the filament into weakly coupled quantum wells. We show that the low-bias conductance decreases exponentially when one oxygen atom moves away from interface. In conclusion, our results demonstrate the high sensitivity of the device conductance to the position of oxygen atoms.
METCAM/MUC18 Plays a Tumor Suppressor Role in the Development of Nasopharyngeal Carcinoma Type I

From previous studies of negatively correlating the expression of human METCAM/MUC18 with the pathology of nasopharyngeal carcinoma (NPC), we have suggested that human METCAM/MUC18 (huMETCAM/MUC18) might play a tumor suppressor role in the development of nasopharyngeal carcinoma. To scrutinize this hypothesis, we investigated the effects of huMETCAM/MUC18′s over-expression on in vitro cellular behavior and on the in vivo tumorigenesis of one NPC cell line (NPC-TW01). HuMETCAM/MUC18 cDNA was first transfected into the NPC-TW01 cell line, which was established from NPC type I, and many G418-resistant clones were obtained. Then, two NPC-TW01 clones, which expressed high and medium levels of huMETCAM/MUC18, respectively, and one empty vector (control) clone were used to test the effects of huMETCAM/MUC18′s over-expression on in vitro behaviors and on in vivo tumorigenesis (via subcutaneous injection) in athymic nude mice (Balb/cAnN.Cg-Foxnlnu/Cr1Nar1). The time course of tumor proliferation and the final tumor weights were determined. Tumor sections were used for the histology and immunohistochemistry (IHC) studies. Tumor lysates were used for determining the expression levels of huMETCAM/MUC18 and various downstream key effectors. HuMETCAM/MUC18′s over-expression reduced in vitro motility and invasiveness and altered growth behaviors in 3D basement membrane culture assays, and it decreased the in vivo tumorigenicity of the NPC-TW01 cells. The tumor cells from a high-expressing clone were clustered and confined in small areas, whereas those from a vector control clone were more spread out, suggesting that the tumor cells from the high-expressing clone appeared to stay dormant in micro-clusters. Expression levels of the proliferation index, an index of the metabolic switch to aerobic glycolysis, angiogenesis indexes, and survival pathway indexes were reduced, whereas the pro-apoptosis index increased in the corresponding tumors. The over-expression of huMETCAM/MUC18 in the NPC-TW01 cells decreased the epithelial-to-mesenchymal transition and the in vitro and in vitro tumorigenesis, suggesting that it plays a tumor suppressor role in the development of type I NPC, perhaps by increasing apoptosis and decreasing angiogenesis, proliferation, and the metabolic switch to aerobic glycolysis.
Closed FRW model in Loop Quantum Cosmology

The basic idea of the LQC applies to every spatially homogeneous cosmological model, however only the spatially ﬂat (so called k = 0) case has been understood in detail in the literature thus far. In the closed (so called: k=1) case certain technical diﬃculties have been the obstacle that stopped the development. In this work the diﬃculties are overcome, and a new LQC model of the spatially closed, homogeneous, isotropic universe is constructed. The topology of the spacelike section of the universe is assumed to be that of SU(2) or SO(3). Surprisingly, according to the new results achieved in this paper, the two cases can be distinguished from each other just by the local properties of the quantum geometry of the universe! The quantum hamiltonian operator of the gravitational ﬁeld takes the form of a diﬀerence operator, where the elementary step is the quantum of the 3-volume derived in the ﬂat case by Ashtekar, Pawlowski and Singh. The mathematical properties of the operator are studied: it is essentially self-adjoint, bounded from above by 0, the 0 itself is not an eigenvalue, the eigenvectors form a basis. An estimate on the dimension of the spectral projection on any ﬁnite interval is provided.
Determining Errors in Directional Buoy-Derived Swell Heights via the Joint Analysis of Space-Borne Radars and WaveWatch III Simulations

Characterizing the uncertainties in buoy ocean wave records is critical not only for understanding the limitations of in situ wave measurements but also for interpreting the implied accuracies of the remotely sensed products, in which these buoy data are used as validation references. This letter preliminarily assesses the error of long-period swell heights (Hss) representing specific directional wave partition energy observed from deep-water buoys moored in the Northeast Pacific (NEP). We propose a buoy Hss error estimation method by combining dual and triple collocation using data derived from buoys, two kinds of space-borne radars, and numerical simulations. Compared to traditional methods, the proposed approach can reveal “absolute” errors (with respect to the underlying truth) from buoy Hss, accepting and then confirming that Hss from buoy, satellite, and model are all uncertain. This study simultaneously employs ocean swell products derived from synthetic/real aperture radars (SAR/RAR) (Sentinel-1A/B and CFOSAT/SWIM) and WaveWatch IIIRegistered trademark. ocean wave model hindcasts to diagnose the accuracy of the Hss values observed by buoys of National Data Buoy Center (NDBC) and Coastal Data Information Program (CDIP) during the period from July 2019 to October 2021. We quantify that the NDBC’s 3-m heave-pitch-roll buoy (CDIP’s Waverider buoy) recorded Hss have root-mean-square error (RMSE) of 0.17 m (0.12 m) or have about 10.65% (7.06%) uncertainty relative to the mean Hss value (approximately 1.6 m). Our findings imply that the reference value uncertainties should be taken into account when understanding direct satellite Hss validation against buoy in situ.
Investigating the Potential of Downscaling Approaches for SMAP Radiometer Soil Moisture in Agroforestry Areas, China

Accurate high-spatial-resolution soil moisture content (SMC) datasets are crucial for applications, such as erosion modelling, flood forecasting, and agricultural production. Downscaling is an effective way to convert coarse satellite observations to a finer spatial resolution. Two downscaling approaches were proposed to improve the spatial resolution of the soil moisture active passive (SMAP) radiometer SMC. A downscaling method (method 1) based on the triangular feature space concept was developed to express SMAP L3 SMC as a polynomial function of the Global Land Surface Satellite leaf area index, preprocessed synthetic land surface temperature, and microwave polarization difference index. A second downscaling method (method 2) based on the simulated datasets was developed to express high-resolution SMC as a function of coarse-resolution SMC and sentinel-1 synthetic aperture radar observations. Downscaled SMC (1 km) was evaluated by the in situ measurements and compared by the SMAP L2 active and passive SMC product in agroforestry areas, China. The results showed that the two downscaling methods could effectively capture the spatial variability of soil moisture at 1-km spatial scales. The root-mean-square error (RMSE) of downscaled SMC for grass, shrub, and forestland is 0.052–0.055 cm3 cm−3, 0.063–0.069 cm3 cm−3, and 0.067–0.073 cm3 cm−3, respectively. The accuracies of method 1, method 2, and SMAP L2 SMC in the grassland were higher than those in the shrubland and forestland. Overall, the R and RMSE between the downscaled soil moisture from method 1, method 2, and SMAP L2 SMC were 0.613, 0.626, and 0.619 and 0.051 cm3 cm−3, 0.041 cm3 cm−3, and 0.45 cm3 cm−3, respectively. The active and SMAP passive microwave combination method has great potential for soil moisture downscaling in agroforestry areas in China.
Phi Zeta Delta: Growth of Perturbations in Parameterized Gravity for an Einstein-de Sitter Universe

Parameterized frameworks for modified gravity are potentially useful tools for model-independent tests of General Relativity on cosmological scales. The toy model of an Einstein-de Sitter (EdS) universe provides a safe testbed in which to improve our understanding of their behaviour. We implement a mathematically consistent parameterization at the level of the field equations, and use this to calculate the evolution of perturbations in an EdS scenario. Our parameterization explicitly allows for new scalar degrees of freedom, and we compare this to theories in which the only degrees of freedom come from the metric and ordinary matter. The impact on the Integrated Sachs-Wolfe effect and canonically-conserved superhorizon perturbations is considered.
Associação entre adversidades na infância e personalidade patológica em adultos

As adversidades na infância são experiências nocivas e recorrentes, fatores de risco para uma série de desfechos negativos na adultez, incluindo transtornos de persona-lidade. O objetivo principal deste estudo foi examinar a relação entre o escore cumu-lativo de adversidades e os indicativos potenciais para patologias de personalidade, na amostra total e por grupo com baixo/moderado risco de estresse ou alto risco de estresse devido a eventos do último ano. Participaram 507 pessoas com idades entre 18 e 59 anos (M = 30,5 anos; DP = 10,4). Foi encontrada associação entre o escore cumulativo de adversidades e indicativos potenciais para transtornos de personali-dade, sendo o tamanho de efeito maior no grupo com alto risco de estresse. O escore cumulativo de adversidades parece ser um indicador de risco para patologias de personalidade. Salienta-se a necessidade de ações preventivas e de identificação da ocorrência de adversidades, para realização de intervenções.
Scoping review on impact of mosquito - borne diseases of man and animals and use of potential bacterial larvicidal agents to control mosquito vectors

Mosquito vector-borne disease which accounts for the transmission of many deadly diseases like dengue, zika, chikungunya, Rift Valley fever, malaria, West Nile fever, heartworm, lumpy skin disease is one of the major causes of mortality, morbidity, and economic loss to human and animal communities. Though there have been several interventions like insecticide-treated nets, spatial repellents, indoor pesticide sprays to control adult mosquitoes, it only remains effective for short time, possibly leading to faster replacement of the adults by immature only achieving lesser mosquito population reduction. Extensive use of synthetic insecticides leads to resistance, affects non-target organisms and cause ecological imbalance. While recognizing the limitations of the synthetic and adulticide-based mosquito control methods, alternatively, microbial larvicidal agents are more feasible, target-specific, environment-friendly, low application rates, and moderate costs when compared with other vector control measures. This review highlights the microbial larvicidal agents as a most promising tool in vector control management to prevent disease transmission and discusses the major mosquito-borne diseases affecting humans and other animals.
Device-independent secret-key-rate analysis for quantum repeaters

The device-independent approach to quantum key distribution (QKD) aims to establish a secret key between two or more parties with untrusted devices, potentially under full control of a quantum adversary. The performance of a QKD protocol can be quantified by the secret key rate, which can be lower bounded via the violation of an appropriate Bell inequality in a setup with untrusted devices. We study secret key rates in the device-independent scenario for different quantum repeater setups and compare them to their device-dependent analogon. The quantum repeater setups under consideration are the original protocol by Briegel et al. and the hybrid quantum repeater protocol by van Loock et al. For a given repeater scheme and a given QKD protocol, the secret key rate depends on a variety of parameters, such as the gate quality or the detector efficiency. We systematically analyze the impact of these parameters and suggest optimized strategies.
Refinements in electroweak contributions to the muon anomalous magnetic moment

Effects of strong interactions on the two loop electroweak radiative corrections to the muon anomalous magnetic moment, $a_\mu=(g_\mu-2)/2$, are examined. Short-distance logs are shown to be unaffected. Computation of long-distance contributions is improved by use of an effective field theory approach that preserves the chiral properties of QCD and accounts for constraints from the operator product expansion. Small, previously neglected, two loop contributions, suppressed by a $1-4\sin^2\theta_W$ factor, are computed and the complete three loop leading short-distance logs are reevaluated. These refinements lead to a reduction in uncertainties and a slight shift in the total electroweak contribution to $a_\mu^{\rm EW} = 154(1)(2)\times 10^{-11}$ where the first error corresponds to hadronic uncertainties and the second is primarily due to the allowed Higgs mass range.
Analysis and Demonstration of Low-Complexity Joint Optical-Electrical Feedforward Equalization (OE-FFE) For Dispersion-Limited High-Speed IM/DD Transmission

High-speed intensity-modulation direct-detection (IM/DD) fiber optical transmission system is of great interest to the applications of datacenter interconnects (DCI) as well as edge/access networks. However, when the fiber reach is beyond 40 km such as ER or ZR, the power fading induced by chromatic dispersion (CD) in C-band, S-band and even edge-wavelengths of O-band becomes a severe issue with the ever-increasing signal data rate. In this work, we focus on an ultra-low complexity joint optical-electrical feedforward equalization (OE-FFE) scheme to mitigate the CD distortion. We establish a comprehensive theory to jointly model the IM/DD channel, optical circuit and the digital equalizer, which offers analytical bit-error ratio (BER) expressions of pulse amplitude modulation (PAM)-2 and PAM4 formats and guides co-optimization of optical and electrical parts. As proofs of concept, we experimentally demonstrate C-band 60 Gb/s PAM2 over 85.8 km single-mode fiber (SMF) and up to 112 Gb/s PAM4 over 50 km or 61.3 km SMF, enabled by OE-FFE with only a 1-tap optical delay line and lean digital equalizers. For 112 Gb/s PAM4 over 50 km, BER satisfying 7% hard-decision FEC limit is achieved using a symbol-spaced simplified polynomial FFE with only 39 multiplications per PAM-4 symbol. For 60 Gb/s PAM-2, we achieved 85.8 km transmission with symbol-spaced 25-tap linear FFE and KP4 FEC-compliant BER. In addition, investigations on the parameters of the optical delay line are also carried out. The analytical and experimental results show the great potential of proposed OE-FFE approach for CD-constrained beyond-100G/λ ER and beyond-50G/λ ZR IM/DD systems.
Type II Supernova Light Curves and Spectra from the CfA

We present multiband photometry of 60 spectroscopically confirmed supernovae (SNe): 39 SNe II/IIP, 19 IIn, 1 IIb, and 1 that was originally classified as a IIn but later as a Ibn. Of these, 46 have only optical photometry, 6 have only near-infrared (NIR) photometry, and 8 have both optical and NIR. The median redshift of the sample is 0.016. We also present 195 optical spectra for 48 of the 60 SN. There are 26 optical and 2 NIR light curves of SNe II/IIP with redshifts , some of which may give rise to useful distances for cosmological applications. All photometry was obtained between 2000 and 2011 at the Fred Lawrence Whipple Observatory (FLWO), via the 1.2 m and 1.3 m PAIRITEL telescopes for the optical and NIR, respectively. Each SN was observed in a subset of the bands. There are a total of 2932 optical and 816 NIR light curve points. Optical spectra were obtained using the FLWO 1.5 m Tillinghast telescope with the FAST spectrograph and the MMT Telescope with the Blue Channel Spectrograph. Our photometry is in reasonable agreement with select samples from the literature: two-thirds of our star sequences have average V offsets within ±0.02 mag and roughly three-quarters of our light curves have average differences within ±0.04 mag. The data from this work and the literature will provide insight into SN II explosions, help with developing methods for photometric SN classification, and contribute to their use as cosmological distance indicators.
Maser oscillation in a whispering-gallery-mode microwave resonator

We report the observation of above-threshold maser oscillation in a whispering-gallery (WG)-mode resonator, whose quasitransverse-magnetic, 17th-azimuthal-order WG mode, at a frequency of approximately 12.038GHz, with a loaded Q of several hundred million, is supported on a cylinder of monocrystalline sapphire. An electron spin resonance associated with Fe3+ ions, that are substitutively included within the sapphire at an effective concentration of a few parts per billion, coincides in frequency with that of the (considerably narrower) WG mode. By applying a cw “pump” to the resonator at a frequency of approximately 31.34GHz, with no applied dc magnetic field, the WG (“signal”) mode is energized through a three-level maser scheme. Preliminary measurements demonstrate a frequency stability (Allan deviation) of a few times 10−14 for sampling intervals up to 100s.