Miracle-dz/UniFAR-FTUs huggingface dataset:
Sensitive VLBI Continuum and H I Absorption Observations of NGC 7674: First Scientific Observations with the Combined Array VLBA, VLA, and Arecibo

We present phase-referenced VLBI observations of the radio continuum emission from, and the neutral hydrogen 21 cm absorption toward, the luminous infrared galaxy NGC 7674. The observations were carried out at 1380 MHz using the VLBA, the phased VLA, and the 305 m Arecibo radio telescope. These observations constitute the first scientific use of the Arecibo telescope in a VLBI observation with the VLBA. The high- and low-resolution radio continuum images reveal several new continuum structures in the nuclear region of this galaxy. At ~100 mas resolution, we distinguish six continuum structures extending over 1. ″4 (742 pc), with a total flux density of 138 mJy. Only three of these structures were known previously. All these structures seem to be related to active galactic nucleus (AGN) activity. The overall S-shaped pattern that the radio structures seem to form could be the result of the interstellar medium diverting the outcoming jets from the central AGN. However, we cannot rule out the possibility of a black hole merger that could result in a similar structural pattern. At the full resolution of the array (11 × 5 mas), we detect only two of the six continuum structures. Both are composed of several compact components with brightness temperatures on the order of 107 K. While it is possible that one of these compact structures could host an AGN, they could also be shocklike features formed by the interaction of the jet with compact interstellar clouds in the nuclear region of this galaxy. Complex H I absorption is detected with our VLBI array at both high and low angular resolution. Assuming that the widest H I feature is associated with a rotating H I disk or torus feeding a central AGN, we estimate an enclosed dynamical mass of ~7 × 107 M☉, comparable to the value derived from the hidden broad Hβ emission in this galaxy. The narrower H I lines could represent clumpy neutral hydrogen structures in the H I torus. The detection of H I absorption toward some of the continuum components and its absence toward others suggest an inclined H I disk or torus in the central region of NGC 7674. The overall averaged H I spectrum toward the continuum structures with H I absorption is very consistent with the Arecibo single-dish H I absorption spectrum at 3. ′3 resolution.
Self-organized spectrum sharing in large MIMO multiple-access channels

In this paper, a deterministic approximation for the rate region of multiple access channels is provided when both the base station and the users have large numbers of antennas, and when the transmission bandwidth is divided into several independent subbands. An explicit formulation is also given for the transmit covariance matrices, at each frequency, that reach the boundary of the rate region. From the compact expression of these matrices, suboptimal iterative algorithms emerge that allow the multiple access users to derive autonomously the transmit covariance matrices. This comes at the sole expense of a small amount of signalling overhead, which is constant irrespectively of the number of antennas. Simulations confirm the validity of the theoretical derivations and suggest rather good behavior of the suboptimal self-organization algorithms.
Information Discovery based on Multi-granularity Text Fusion

In this paper we introduce a new information discovery algorithm Multi-granularity Text Fusion (MGTF) on the Web. Granularity means the length of News relevant web documents, such as News web pages, Blog and Micro Blogs, which comes from web uses. The longer the text is, the higher of the granularity it has. Given a topic query on the Internet and the results of different granularity and time-stamped web documents which contain the query keywords, the task of MGTF is to orderly return those different granularity web documents discussed about the same topic. The process of multigranularity web documents analysis leads to heretofore unknown information and opinions that valuable potential, minority and contentious respectively, which integrates the time, content, reprint and link information. Experiments show that MGTF achieves the best overall performance with high effectiveness and robustness.
Fairness of radio resource partitioning for macrocell and femtocell networks

Radio resource partitioning is a vital feature that ought to be considered to further enhancing the overall performance of the Orthogonal Frequency Division Multiple Access (OFDMA) system. Radio resources can be allocated in either time domain or frequency domain in OFDMA system. As the emergence recent technologies such as femtocell, which is it underlay the macrocell network, the users fairness of sharing the network resource become the important issue. Therefore this scenario can potentially some users excessive consumes the network resource and it incommode the other users if the network resources are not proper planned. This paper presents the Fractional Frequency Reuse (FFR) scheme that can fair partition the radio resource of the macrocell and femtocell networks. The scheme focuses on the analyzing and improving the macrocell user's fairness and maximizes the femtocell capacity. The simulation results show that choosing spectrum splitting ratio (SSR) and fraction of radius becomes important since different total capacities and fairness level can be achieved with these two values.
A Novel CCM2 Gene Mutation Associated with Familial Cerebral Cavernous Malformation

Background: Cerebral cavernous malformations (CCMs) are common vascular malformations that predominantly arise in the central nervous system and are mainly characterized by enlarged vascular cavities without intervening brain parenchyma. Familial CCMs (FCCMs) is inherited in an autosomal dominant pattern with incomplete penetrance and variable symptoms. Methods: Mutations of three pathogenic genes, CCM1, CCM2, and CCM3, were investigated by direct DNA sequencing in a Chinese family with multiple CCM lesions. Results: Four heterozygous variants in the CCM2 gene, including one deletion (c.95delC), a missense mutation (c.358G>A, p.V120I), one silent mutation (c.915G>A, p.T305T), and a substitution (c. *1452 T>C), were identified in the subjects with multiple CCM lesions, but not in a healthy sibling. Among these variants, the c.95delC deletion is a novel mutation which is expected to cause a premature termination codon. It is predicted to produce a truncated CCM2 protein lacking the PTB and C-terminal domains, thus disrupting the molecular functions of CCM2. Conclusions: The novel truncating mutation in the CCM2 gene, c.95delC, may be responsible for multiple CCM lesions in a part of FCCM. In addition, it may represent a potential genetic biomarker for early diagnosis of FCCM.
A rule-based expert system for the optimal problem of PV systems using particle swarm optimization

This paper presents a rule-based expert system for the optimal problem of photovoltaic(PV) system using discrete particle swarm optimization(PSO) in distribution power system. Expert system is applied on the discretization for a real-valued particle's velocity to a multi-valued discrete variable. In the discrete PSO procedures, several rules in terms of object value and optimization speed are employed to search for an optimal solution. The numerical results show the usefulness of the proposed discrete PSO for the allocation problem.
The Frequency of Medically Compromised Patients in Endodontic Offices in Iran

Introduction As the result of epidemiological transition and aging of Iranian population, the frequencies of systemic diseases among patients in of need endodontic treatment has increased, especially within developed cities. However, there have been no concise reports of systemic diseases in Iranian patients. Based on this need, the present investigation was conducted to assess the frequency of systemic disease among patients referred to endodontic private practice in three main cities in Iran. Materials and Methods In a retrospective study, the frequency of systematic diseases were abstracted from the health records of patients who were referred to three private practices limited to endodontics in Kerman, Mashhad, and Tehran between 1994 to 2011. Results Overall, 15,413 records of patients were assessed. The patterns of systematic diseases among endodontic patients in these three cities were different. The overall frequency of systemic disease in Kerman was significantly higher than two other cities (Kerman: 55.03%, Mashhad: 24.32%, Tehran: 22.16%; P<0.001). The most commonly occurring diseases were cardiac disease, hypertension, allergy and neurological disorders. Conclusion Since the number of endodontic patients with systematic diseases is considerably significant and varied, special training and educations for treatment of medically compromised patient should be considered at both post- and undergraduate training.
Analysis of Multi-task Scheduling Based on SMS

With the development of wireless Internet, SMS has become a hot spot. Short message service can be divided into two categories: one is information service, and the other is transaction service; which require a real-time system to deal with transactions. When receiving data, this real-time system responds within the stipulated time, and processes data as soon as possible, then sends results to the destination promptly. This paper researches on the multi-task scheduling strategy of transactions based on SMS, and then analyzes the issues that may emerge, which mainly includes the treatment of high number tasks, and the emergency method of temporary tasks when there is any accident or emergency, as well as the solution of transient overload. These methods ensure that the operation based on SMS stable.
Data Fusion of Unknown Correlations using Internal Ellipsoidal Approximation

Abstract To avoid both the inconsistency of the Kalman filter and the performance conservation of the covariance intersection (CI) in the case of unknown correlations, an internal ellipsoidal approximation (IEA) method is proposed to fuse the local estimations. A numerical example of three-state radar tracking system is presented to illustrate the implementation and effectiveness of the proposed algorithm. From the simulation results in the cases that the sources are (i) independent; (ii) correlated and the cross-covariance are exact known; and (iii) correlated with unknown cross-covariance, it is obvious to see that the IEA method, like CI, circumvents the need for prior knowledge of the correlations but it gets better fusion accuracy than CI.
LASG - A LOGIC ARCHITECTURE FOR INTELLIGENT AGENTS

A system for imaging P-31 spectra from different slices through a living body specimen positioned in the bore of the hollow main field magnet of an NMR spectrometer, consisting of applying a timed series of different discrete different-amplitude magnetic field gradient pulses to the specimen, whereby to generate time-spaced echo signals from respective points along the specimen while timed RF resonance excitation pulses are applied to the specimen. The echo signals are used to derive respective chemical shift spectra from the points, each spectrum containing information showing the in vivo metabolic state at one of the points. The various spectra can be simultaneously displayed to enable concurrent slice-by-slice interpretation of the metabolic information. The gradient pulses are derived from coils mounted inside the main field magnet arranged to generate a magnetic field vector traversing the specimen. The gradient coils are energized by using a suitably programmed computer. The gradient current pulses are applied concurrently with the RF excitation pulses.
Array comparative genomic hybridization identifies a heterozygous deletion of exon 3 of the RYR2 gene

Abstract Background. Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a heritable cardiac disorder characterized by life-threatening ventricular tachycardia caused by exercise or acute emotional stress. The standard diagnostic screening involves Sanger-based sequencing of 45 of the 105 translated exons of the RYR2 gene, and copy number changes of a limited number of exons that are detected using multiplex ligation-dependent probe amplification (MLPA). Methods. In the current study, a previously validated bespoke array comparative genomic hybridization (aCGH) technique was used to detect copy number changes in the RYR2 gene in a 43-year-old woman clinically diagnosed with CPVT. Results. The CGH array detected a 1.1 kb deletion encompassing exon 3 of the RYR2 gene. This is the first report using the aCGH technique to screen for mutations causing CPVT. Conclusions. The aCGH method offers significant advantages over MLPA in genetic screening for heritable cardiac disorders.
Metagenomics: Tools and Insights for Analyzing Next-Generation Sequencing Data Derived from Biodiversity Studies

Advances in next-generation sequencing (NGS) have allowed significant breakthroughs in microbial ecology studies. This has led to the rapid expansion of research in the field and the establishment of “metagenomics”, often defined as the analysis of DNA from microbial communities in environmental samples without prior need for culturing. Many metagenomics statistical/computational tools and databases have been developed in order to allow the exploitation of the huge influx of data. In this review article, we provide an overview of the sequencing technologies and how they are uniquely suited to various types of metagenomic studies. We focus on the currently available bioinformatics techniques, tools, and methodologies for performing each individual step of a typical metagenomic dataset analysis. We also provide future trends in the field with respect to tools and technologies currently under development. Moreover, we discuss data management, distribution, and integration tools that are capable of performing comparative metagenomic analyses of multiple datasets using well-established databases, as well as commonly used annotation standards.
Endothelin Mediates Some of the Renal Actions of Acutely Administered Angiotensin II

Recent studies suggest that endogenous endothelin mediates much of the vasoconstrictor activity and vascular fibrotic damage caused by chronic administration of angiotensin II. The present study uses the mixed endothelin-A and endothelin-B receptor antagonist bosentan and the endothelin-A-selective blocker BQ-123 to study the contribution of endogenous endothelin to the pressor and renal action of acutely administered angiotensin II in conscious, chronically catheterized rats. Exposure to angiotensin II at 0.48 pmol 0.5 ng/100 g body weight per min IV (low dose) and 1.91 pmol 2.0 ng/100 g body weight per min IV (high dose) raised mean arterial blood pressure (18±4 mm Hg, P <0.01, and 39±4 mm Hg, P <0.005, respectively) while also increasing renal vascular resistance (4.3±1 mm Hg/mL per min, P <0.001, and 10±1 mm Hg/mL per min, P <0.001, respectively). In the presence of bosentan, pressor and renal vasoconstrictor responses to low-dose angiotensin II were blunted (P <0.02 and P <0.01, respectively), and the results with BQ-123 were similar. In contrast, these parameters were unaffected during high-dose angiotensin II infusion+bosentan, although BQ-123 did selectively reduce the rise in renal vascular resistance, possibly via an endothelin B-mediated nitric oxide effect. In contrast, high-dose angiotensin II caused natriuretic and diuretic effects that were completely prevented by bosentan. These results show that endothelin (via endothelin A) contributes to the pressor and renal vasoconstrictor actions of acutely administered low-dose angiotensin II. Furthermore, our data suggest that the previously described angiotensin II-induced natriuresis and diuresis observed with a high pressor dose of angiotensin II is mediated by endothelin.
Retrieval of Aerosol Size Distributions From In Situ Particle Counter Measurements: Instrument Counting Efficiency and Comparisons With Satellite Measurements

The method to derive aerosol size distributions from in situ stratospheric measurements from the University of Wyoming is modified to include an explicit counting efficiency function (CEF) to describe the channel‐dependent instrument counting efficiency. This is motivated by Kovilakam and Deshler's (2015, https://doi.org/10.1002/2015JD023303) discovery of an error in the calibration method applied to the optical particle counter (OPC40) developed in the late 1980s and used from 1991 to 2012. The method can be applied to other optical aerosol instruments for which counting efficiencies have been measured. The CEF employed is the integral of the Gaussian distribution representing the instrument response at any one aerosol channel, the aerosol counting efficiency. Results using the CEF are compared to previous derivations of aerosol size distributions (Deshler et al., 2003, https://doi.org/10.1029/2002JD002514) applied to the measurements before and after Kovilakam and Deshler's correction of number concentration for the OPC40 calibration error. The CEF method is found, without any tuning parameter, to reproduce or improve upon the Kovilakam and Deshler's results, thus accounting for the calibration error without any external comparisons other than the laboratory determined counting efficiency at each aerosol channel. Moments of the new aerosol size distributions compare well with aerosol extinctions measured by Stratospheric Aerosol and Gas Experiment II and Halogen Occultation Experiment in the volcanic period 1991–1996, generally within ±40%, the precision of OPC40 moments, and in the nonvolcanic period after 1996, generally within ±20%. Stratospheric Aerosol and Gas Experiment II and Halogen Occultation Experiment estimates of aerosol surface area are generally in agreement with those derived using the new CEF method.
Multi-Objective Optimal Sizing for Battery Storage of PV-Based Microgrid with Demand Response

In order to solve the influence of uncertain photovoltaic power (PV) on the stable operation of microgrid (MG), demand response (DR) and battery energy storage system (BESS) need to be introduced simultaneously into the operation optimal scheduling of PV-based microgrid (PV-MG). Therefore, it is of great significance for commercial investment decisions of PV-MG to consider the influence of DR on BESS optimal sizing. Under the peak-valley time-of-use (TOU) price, this paper builds cross-time DR models based on price elasticity matrix. Furthermore, through the introduction of DR and BESS into PV-MG scheduling optimization, the MG investment and benefit model is proposed. Considering the constraint condition such as co-ordination of supply and demand, electricity price elasticity and energy loss of storage system, the improved non-dominated sorting genetic algorithm II (NSGA-II) is utilized to solve the multi-objective optimal allocation model of the BESS with the target of maximum PV consumptive rate and annual net profits. The optimization method was applied to a PV-MG in Guangdong. Through the regulation and control effect of demand response and BESS on load distribution, the uncertainties PV power can be suppressed so as to improve the PV system consumptive level, which is of great guiding significance for BESS optimal sizing under this situation.
Endangered Species Research Endang Species Res Species-specific Effects of Turbidity on the Physiology of Imperiled Blackline Shiners Notropis Spp. in the Laurentian Great Lakes

INTRODUCTION The loss of aquatic biodiversity globally is ubiquitous , but the underlying mechanisms driving species declines are not always well understood. This knowledge is necessary for assessing critical habitat needs of imperiled species to facilitate their conservation and restoration (Rosenfeld & Hatfield 2006). In aquatic habitats, increases in sediment flux associated with human activities including deforestation, agriculture, and urbanization are pushing turbidity (suspended particulates) levels over natural ranges for prolonged periods (Kemp et al. 2011). Increased turbidity, and associated stressors on aquatic systems such as decreased dissolved oxygen and increased temperature, have been correlated with the loss of many freshwater fishes (Ricciardi & Rassmusen 1999, Donohue & Garcia Molinos 2009); however, less is known about the ways in which increased turbidity influences fitness. Sublethal behavioral and physio-ABSTRACT: Increased sedimentary turbidity associated with human activities is often cited as a key stressor contributing to the decline of fishes globally. The mechanisms underlying negative effects of turbidity on fish populations have been well documented, including effects on behavior (e.g. visual impairment) and/or respiratory function (e.g. clogging of the gills); however, the long-term physiological consequences are less well understood. The decline or disappearance of several blackline shiners Notropis spp. in the Laurentian Great Lakes has been associated with increased turbidity. Here, we used non-lethal physiological methods to assess the responses of 3 blackline shiners under varying degrees of threat in Canada (Species at Risk Act; pugnose shiner N. anogenus: endangered; bridle shiner N. bifrenatus: special concern; blacknose shiner N. het-erolepis: common) to increased turbidity. Fish were exposed for 3 to 6 mo to continuous low levels of turbidity (~7 nephelometric turbidity units, NTU). To test for effects on respiratory function, we measured both resting metabolic rate (RMR) and critical oxygen tension (the oxygen partial pressure at which the RMR of fish declines). No change in RMR was detected across species or in clear versus turbid treatments. However, critical oxygen tensions were negatively affected by long-term exposure to low levels of sedimentary turbidity in the 2 imperiled species, viz. pugnose and bridle shiner, but not in the more common blacknose shiner. Variation in effects of turbidity on respiratory performance suggests differential sensitivity to turbidity, which may contribute to the current conservation status of the 3 species.
Supersymmetry of the chiral de Rham complex II: Commuting Sectors

We construct two commuting N=2 structures on the space of sections of the chiral de Rham complex (CDR) of a Calabi-Yau manifold. We use this extra supersymmetry to construct a non-linear automorphism of CDR preserving these N=2 structures. Finally, we show how to extend these results to construct a commuting pair of N=4 super-vertex algebras in the Hyper-Kahler case.
Digital background calibration of subsampling time-interleaved ADCs

A technique for the digital background calibration of subsampling time-interleaved analog-to-digital converters is proposed. The technique corrects the errors due to gain, offset and timing mismatches among the time-interleaved channels by estimating and nulling the errors with respect to a reference channel through least mean squares loops. Wideband undersampled differentiator filters are exploited thus enabling digital background calibration of timing skews even with wideband input signals outside the first Nyquist band.
Spectral Features for Emotion Classification

This paper aims at exploring short term spectral features for Emotion Recognition (ER). Linear predictive cepstral coefficients (LPCC), mel frequency cepstral coefficients (MFCC) and log frequency power co-efficients (LFPC) are explored for classification of emotions. For capturing the emotion specific knowledge from the above short-term speech features vector quantizer (VQ) models are used in this paper. Indian Institute of Technology, Kharagpur-Simulated Emotion Speech Corpus (IITKGP-SESC) is used for developing the emotion specific models and validating the models by emotion recognition task. The emotions considered for the study are Anger, Compassion, Disgust, Fear, Happy, Neutral, Sarcastic and Surprise. The recognition performance of the developed models is observed to be about 40%, where as the subjective listening tests show the performance about 60%.