Miracle-dz/UniFAR-FTUs huggingface dataset:
Optical identifications of radio sources using accurate radio and optical positions

The first results of a program of optical identification of several thousands of radio sources based on the sole criterion of coincidence of accurate radio and optical positions are presented. Radio positions of ~1 arcsec accuracy for 605 radio sources have already been published by Douglas, Bash, Ghiho, Moseley, and Torrence (1973), who give further details of the overall program. Optical positions a re given for 181 objects near some of these and other radio sources, measured with typical rms accuracy of 0.5 arcsec. Of 145 objects within 10 arcsec of the radio positions measured by Douglas et al., 81 are within 3 arcsec, including 38 spectroscopically confirmed QSOs, 15 additional blue stellar objects, and 15 galaxies. Finding charts are given for 43 objects which are within 3 arcsec of the radio positions (5 arcsec for galaxies and blue stellar objects) and for which finding charts do not exist in the literature. The reliability of these new identifications, based on position coincidence alone, is approximately 95%. A number of previously suggested identifications have been rejected on the basis of the new and more accurate radio and optical positions. (auth)
Genomic Epidemiology of Streptococcus pneumoniae Isolated in a Tertiary Hospital in Beijing, China, from 2018 to 2022

Streptococcus pneumoniae is one of the most common bacterial pathogens of a wide range of community-acquired infections. It has been more and more recognized that this bacterium could also play a role as a cause of nosocomial infections. In this study, by retrospective analysis of the phenotypic resistance characteristics and genomic characteristics of 52 S. pneumoniae isolates in a hospital in Beijing, China, from 2018 to 2022, we explored the carriage of resistance genes and mutations in penicillin-binding proteins corresponding to the resistances, and identified the population diversity based on the prediction of serotypes and identification of sequence types (STs). The isolates displayed resistances to erythromycin (98%), tetracycline (96%), sulfonamide (72%) and penicillin G (42%). Among the 52 isolates, 41 displayed multiple-drug resistance. In total, 37 STs and 21 serotypes were identified, and the clonal complex 271 serogroup 19 was the most prevalent subtype. Only 24 isolates (46.2%) of 7 serotypes were covered by the 13-valent pneumococcal conjugate vaccination. The isolates showed high carriages of resistance genes, including tet(M) (100%) and erm(B) (98.1%); additionally, 32 isolates (61.5%) had mutations in penicillin-binding proteins. We also observed 11 healthcare-associated infections and 3 cases infected by different subtypes of isolates. We did not find nosocomial transmissions between the patients, and these cases might be associated with the asymptomatic colonization of S. pneumoniae in the human population. Our results called for further active surveillance of these subtypes, as well as the continuous optimization of the treatment protocols.
A new LDPC decoding algorithm aided by segmented cyclic redundancy checks for magnetic recording channels

We introduce a new low-density parity-check (LDPC) decoding algorithm that exploits the cyclic redundancy check (CRC) information of data segments. By using the error detection property of the CRC, we can successively decode data segments of a codeword corrupted by random errors and erasures. The key idea is that the messages from the variable nodes with correct checksum are fixed to deterministic log likelihood ratio values during LDPC iterative decoding. This approach improves the decoding speed and codeword error rate without significant modification of the LDPC decoding structure. Moreover, the CRC is also used for an early stopping criterion of LDPC decoding. Simulation results verify our claims.
The period-magnitude diagram of RR Lyrae stars — I. The controversy about the distance scale

Convective pulsating models with surface helium abundances of Y = 0.24 and total masses of M = 0.58, 0.65 and 0.75 M0 are used to predict the limits of the distribution of RR Lyrae stars with a given mass in the period-absolute magnitude (logP, Mv) plane. On this basis, data of RR Lyrae stars in well-studied Galactic globular clusters clearly contradict the so-called 'long distance scale' for calibrating the RR Lyrae absolute magnitude in terms of metal content {Mv(RR) =0.94 + 0.30[Fe/H]}, in that most c-type variables tum out to fall in the hot stable region, outside the RR Lyrae instability strip. Conversely, if the calibration ofMv(RR) follows the precepts of stellar evolution theory, then a close agreement with the pulsational constraints is obtained. Furthermore, this new approach is adopted to derive the distance to the Large Magellanic Cloud from RR Lyrae rich globular clusters. The resulting true distance modulus (do = 18.44 ± 0.10 for scaled solar chemical composition and do= 18.37 ± 0.10 if the (X elements are enhanced by a factor of 3) is in close agreement with the distances derived from supernova 1987 A and planetary nebulae, and only marginally smaller than that derived from Cepheids.
Hierarchical ID-Based Blind Signature from Lattices

Blind signature offer the protection for sender's privacy and become an important primitive for electronic commerce. In this paper, we present a technique of matrix-vector-blinding for lattice-based blind signature. Building on this result, we propose two hierarchical ID-based blind signature schemes from lattice with and without random oracle, which are secure against quantum attacks. We apply the latest technique of "lattice basis delegation in fixed dimension" from ABB10's[1] scheme to our constructions which contribute to shorter public key and signature. Both of our blind signature schemes are proven to hold the properties of perfect blindness and one-more unforgeableability. Our hierarchical ID-based blind signature schemes are communicationally efficient and needs only one round data exchanges between the signer and the user, and with a shorter public key and signature in comparison with similar schemes[2, 3]. We prove that our scheme is secure assuming that the short integer solution (SIS) problem is hard.
Linear specific heat of carbon nanotubes

Large size C-70 Single crystals with the dimension of more than 5 mm are grown from the vapor phase by controlling nucleation. X-ray diffraction and electron diffraction confirm that in the C-70 single crystal a phase of the hexagonal close-packed (hcp) structure coexists with a minor face-center-cubic (fcc) phase at room temperature. The morphologies and their formation mechanism of the C-70 single crystals are investigated by means of scanning electron microscopy and optical microscopy. The influence of growth conditions on the morphologies of C-70 single crystals is discussed.
Angular selective backreflector for semitransparent photovoltaics

A nanoporous anodized aluminum oxide template is used as an incident-angle selective backreflector to lift the transparency vs. light absorption tradeoff in semi-transparent photovoltaics. Light incident at angles greater-than 45° from the template normal is backscattered at greater-than 35% intensity to a semitransparent photovoltaic increasing absorption and photocurrent. Meanwhile, light incident orthogonal to the template is transmitted with minimum attenuation (>85% at 600 nm), limited only by a single-pass absorption within the active layer. Using a vertical semitransparent photovoltaic proposed here, efficient capture of direct sunlight is possible while maintaining transparency at viewing angles close to the substrate normal.
Pathophysiological Mechanisms of Cardiac Dysfunction in Transgenic Mice with Viral Myocarditis

Viral myocarditis is pathologically associated with RNA viruses such as coxsackievirus B3 (CVB3), or more recently, with SARS-CoV-2, but despite intensive research, clinically proven treatment is limited. Here, by use of a transgenic mouse strain (TG) containing a CVB3ΔVP0 genome we unravel virus-mediated cardiac pathophysiological processes in vivo and in vitro. Cardiac function, pathologic ECG alterations, calcium homeostasis, intracellular organization and gene expression were significantly altered in transgenic mice. A marked alteration of mitochondrial structure and gene expression indicates mitochondrial impairment potentially contributing to cardiac contractile dysfunction. An extended picture on viral myocarditis emerges that may help to develop new treatment strategies and to counter cardiac failure.
Item Imputation Without Specifying Scale Structure

Imputation of incomplete questionnaire items should preserve the structure among items and the correlations between scales. This paper explores the use of fully conditional specification (FCS) to impute missing data in questionnaire items. FCS is particularly attractive for items because it does not require (1) a specification of the number of factors or classes, (2) a specification of which item belongs to which scale, and (3) assumptions about conditional independence among items. Imputation models can be specified using standard features of the R package MICE 1.16. A limited simulation shows that MICE outperforms two-way imputation with respect to Cronbach’s α and the correlations between scales. We conclude that FCS is a promising alternative for imputing incomplete questionnaire items.
The Area of the Stratospheric Polar Vortex as a Diagnostic for Tracer Transport on an Isentropic Surface

Abstract Data retrieved from the LIMS (Limb lnfrared Monitor of the Stratosphere) experiment are used 10 calculate daily isentropic distributions of Ertel's potential vorticity, ozone, water vapor and nitric acid at the 850 K level in the Northern Hemisphere stratosphere for the period 25 October 1978 through 2 April 1979. Systematic redistributions of the quasi-conservative tracers are investigated by following the evolutions of the horizontal projection of the areas enclosed by isopleths of tracer on the isentropic surface. If the horizontal velocity is nondivergent on an isentropic surface, the areas change in response to nonconservative processes and /or irreversible mixing to unresolvable scales and so provide a diagnostic for quantifying the net cited of these two processes. The effects of the seasonal variation of the solar heating on the areas are identified from the evolutions of the hemispheric means and, for the potential vorticity, from a comparison with an annual Mile integration of a zonally.
Holographic interferometry deformations metrology by using AR modeling

The frequency of the holographic fringe signal is proportional to the measured object deformation or displacement. Fast Fourier transform (FFT) is the most commoly used signal processing technique for analyzing output fringes. One problem with this approach is that a long data acquisition is required to achieve adequate deformation resolution, typically 5 to 10 fringes are needed. We propose using an autoregressive (AR) model to obtain with the same advantages deformation of an opaque object using holographic interferometry. This deformation will be estimated directly from the model parameters. The theoretical and experimental results obtained indicate that the proposed method has a good accuracy by using a small number of fringes.
A Bibliometric Review of Adsorption Treatment
with an Adsorbent for Wastewater

Wastewater is produced through the use of clean water and impacts environmental quality; therefore, it must be treated to reduce negative impacts. Adsorption technology is a form of wastewater treatment used to address these problems. The adsorption process can be applied using various materials including graphene-based, metal-organic frameworks (MOFs), carbon nanotubes (CNTs), and carbon-based activated carbon. This journal review aims to determine the applications and development for adsorption technology in wastewater treatment. This review used several software programs including Microsoft Excel to process the data, and VOSviewer to analyze the bibliographic mapping. As a result, 766 articles on adsorption treatment with an adsorbent for wastewater were extracted from the Scopus database and analyzed. The study found that the trend of this topic is increasing each year. Many kinds of adsorbents, such as activated carbon, metal-organic frameworks (MOFs), and graphene-based materials can be used to treat large volumes of wastewater, such as tea waste, dyes, or soybean waste. Moreover, this review showed that many researchers used activated carbon as an adsorbent. In addition, the key contributions of this study are the analysis of relationships between authors, keywords, and journal publishers who discuss this adsorption process and the types of adsorbents used. This can be used as a reference for future studies.
Monitoring oil–water mixture separation by time domain reflectometry

Effective separation of water and oil is an essential part of petroleum production. Time domain reflectometry (TDR) can be used to profile the separation of hydrocarbon oil–water mixtures. In such two-component systems, metal electrodes will become oil-coated due to their affinity to oil. This coating layer will impact water content measurements. By combining the TDR signals from two probes in a novel configuration, the thickness of the oil layer on the electrodes can be estimated and its effect on the TDR measurements corrected for. The probes consist of two rods of different diameter and spacing to a common ground/guard electrode. The measurement principle is demonstrated using a light fuel oil and a thicker organic oil. The results indicate that oil and water levels can be monitored during separation if the metal electrode oil-coating effect is accounted for.
HIV-1 Gag Binds the Multi-Aminoacyl-tRNA Synthetase Complex via the EPRS Subunit

Host factor tRNAs facilitate the replication of retroviruses such as human immunodeficiency virus type 1 (HIV-1). HIV-1 uses human tRNALys3 as the primer for reverse transcription, and the assembly of HIV-1 structural protein Gag at the plasma membrane (PM) is regulated by matrix (MA) domain–tRNA interactions. A large, dynamic multi-aminoacyl-tRNA synthetase complex (MSC) exists in the cytosol and consists of eight aminoacyl-tRNA synthetases (ARSs) and three other cellular proteins. Proteomic studies to identify HIV–host interactions have identified the MSC as part of the HIV-1 Gag and MA interactomes. Here, we confirmed that the MA domain of HIV-1 Gag forms a stable complex with the MSC, mapped the primary interaction site to the linker domain of bi-functional human glutamyl-prolyl-tRNA synthetase (EPRS), and showed that the MA–EPRS interaction was RNA dependent. MA mutations that significantly reduced the EPRS interaction reduced viral infectivity and mapped to MA residues that also interact with phosphatidylinositol-(4,5)-bisphosphate. Overexpression of EPRS or EPRS fragments did not affect susceptibility to HIV-1 infection, and knockdown of EPRS reduced both a control reporter gene and HIV-1 protein translation. EPRS knockdown resulted in decreased progeny virion production, but the decrease could not be attributed to selective effects on virus gene expression, and the specific infectivity of the virions remained unchanged. While the precise function of the Gag–EPRS interaction remains uncertain, we discuss possible effects of the interaction on either virus or host activities.
Microwave pressure broadening studies of some molecules

The line width of carbonyl sulphide (OCS) methyl cyanide (CH3CN) and formaldehyde (HCHO) molecules have been measured at room temperature by using a double modulation microwave spectrometer. Twenty cases of self-broadening and foreign gas broadening have been studied. The experimental results have been compared with the calculated results using impact theory of Anderson (1955) and collision broadening theory of Murphy and Boggs (1967-8). The experimental results are in good agreement with the theoretical values of line width parameter for linear molecules. In case of symmetric molecules the theoretical results are higher than the experimentally observed results. The quadrupole moments of OCS, CO2 and N2 are obtained from these measurements. The observed results agree better with Murphy and Boggs theory than with Anderson's theory.
Analytical structure of Hermite Gaussian beam in far field

Based on the vectorial structure of electromagnetic beam and the method of stationary phase, the analytical structure of Hermite Gaussian beam in far field is presented. The structural energy flux distributions are also investigated in the far field. The structural pictures of some Hermite Gaussian beams are depicted in the far field. As the structure of Hermite Gaussian beam is dominated by the transverse mode numbers and the initial transverse Gaussian half width, it is more complex than that of Gaussian beam. The ratios of the structural energy fluxes to the whole energy flux are independent of the transverse mode numbers and the initial transverse Gaussian half width. The present research reveals the internal vectorial structure of Hermite Gaussian beam from other viewpoint.
Some Statistical Modeling Problems in the Advertising Industry: A Look at Media Exposure Distributions

Abstract Advertisers have been estimating the potential audience for their advertising campaigns for over 30 years, with varying degrees of success. When abstracted into random variables, their modeling problems become rather tantalizing for statisticians due to awkward inter- and intramedia correlations. The purpose of this article is to introduce more statisticians to fertile areas of research in the advertising industry.
Security Made Easy - Proving Security using Type Inference

In this paper we give a type inference algorithm for a type system for a pi calculus. The effect type system with dependent types guarantees that well-typed processes respect an authenticity property expressed as correspondences. Given a process and a type context we generate constraints that are satisfiable if and only if the process can be made well-typed under the context. Unification is used to solve type constraints and a non-deterministic algorithm is used to solve effect constraints. Effects capture correspondences and effect solving is essentially correspondence matching. The output of the algorithm can be used to efficiently construct a proof of safety in the form of a derivation tree. Experiments with a Caml implementation have shown that the algorithm performs well in praxis.
Unscented extended Kalman filter for target tracking

A new method of unscented extended Kalman filter (UEKF) for nonlinear system is presented. This new method is a combination of the unscented transformation and the extended Kalman filter (EKF). The extended Kalman filter is similar to that in a conventional EKF. However, in every running step of the EKF the unscented transformation is running, the deterministic sample is caught by unscented transformation, then posterior mean of nonlinearity is caught by propagating, but the posterior covariance of nonlinearity is caught by linearizing. The accuracy of new method is a little better than that of the unscented Kalman filter (UKF), however, the computational time of the UEKF is much less than that of the UKF.
Detecting depression of Chinese microblog users via text analysis: Combining Linguistic Inquiry Word Count (LIWC) with culture and suicide related lexicons

Introduction In recent years, research has used psycholinguistic features in public discourse, networking behaviors on social media and profile information to train models for depression detection. However, the most widely adopted approach for the extraction of psycholinguistic features is to use the Linguistic Inquiry Word Count (LIWC) dictionary and various affective lexicons. Other features related to cultural factors and suicide risk have not been explored. Moreover, the use of social networking behavioral features and profile features would limit the generalizability of the model. Therefore, our study aimed at building a prediction model of depression for text-only social media data through a wider range of possible linguistic features related to depression, and illuminate the relationship between linguistic expression and depression. Methods We collected 789 users’ depression scores as well as their past posts on Weibo, and extracted a total of 117 lexical features via Simplified Chinese Linguistic Inquiry Word Count, Chinese Suicide Dictionary, Chinese Version of Moral Foundations Dictionary, Chinese Version of Moral Motivation Dictionary, and Chinese Individualism/Collectivism Dictionary. Results Results showed that all the dictionaries contributed to the prediction. The best performing model occurred with linear regression, with the Pearson correlation coefficient between predicted values and self-reported values was 0.33, the R-squared was 0.10, and the split-half reliability was 0.75. Discussion This study did not only develop a predictive model applicable to text-only social media data, but also demonstrated the importance taking cultural psychological factors and suicide related expressions into consideration in the calculation of word frequency. Our research provided a more comprehensive understanding of how lexicons related to cultural psychology and suicide risk were associated with depression, and could contribute to the recognition of depression.
Large deviations from the mckean-vlasov limit for weakly interacting diffusions

A system of N diffusions on R$SUP:D$ESUP:in which the interaction is expressed in terms of the empirical measure is considered. The limiting behavior as N →∞ is described by a McKean_Vlasov equation. The purpose of this paper is to show that the large deviations from the McKean-Vlasov limit can be described by a generalization of the theory of Freidlin and Wentzell and to obtain a characterization of the action functional. In order to obtain this action functional we first obtain results on projective limits of large deviation systems, large deviations on dual vector spaces and a Sanov type theorem for vectors of empirical measures
Balanced Contribution to the Intensification of a Tropical Cyclone Simulated in TCM4: Outer-Core Spinup Process*

Abstract The balanced contribution to the intensification of a tropical cyclone simulated in the three-dimensional, nonhydrostatic, full-physics tropical cyclone model version 4 (TCM4), in particular the spinup of the outer-core circulation, is investigated by solving the Sawyer–Eliassen equation and by computing terms in the azimuthal-mean tangential wind tendency equation. Results demonstrate that the azimuthal-mean secondary circulation (radial and vertical circulation) and the spinup of the midtropospheric outer-core circulation in the simulated tropical cyclone are well captured by balance dynamics. The midtropospheric inflow develops in response to diabatic heating in mid–upper-tropospheric stratiform (anvil) clouds outside the eyewall in active spiral rainbands and transports absolute angular momentum inward to spin up the outer-core circulation. Although the azimuthal-mean diabatic heating rate in the eyewall is the largest, its contribution to radial winds and thus the spinup of outer-core circul.
A new model of the vertical ground rod in two-layer earth

A new system of integral equations (SIE) for the current distribution function in a vertical ground rod in a two-layer earth is developed. The system of integral equations is numerically solved by the point matching method using polynomial approximation of the current distribution function. The supply zone is approximated by the electric field of a point source. >