Miracle-dz/UniFAR-FTUs huggingface dataset:
Just a Snap

Employing a uses-and-gratifications approach, we examined the motives for following sports using the social media application Snapchat (version 9 [9.27.5.0 iOS/9.20.6.0] Andr). In Step 1 of the study, participant provided narratives (n = 49) about their motivations for using Snapchat to follow sports. In Step 2, an online survey asked participants (N = 263) to respond to 39 motive statements gleaned from narratives obtained in Step 1 as well as measures of points of attachment (POA), overall time spent viewing a variety of sports, and to rank the importance of various social media channels. Overall, four motives for using Snapchat to follow sports were conceptualized across 21 items (i.e., ease and convenience, behind the scenes, vicarious experience, unique points of view). Next, using regression analyses, we found that age, POA, social media preferences, and different sports viewed predicted motives for using Snapchat to follow sports to varying degrees. Theoretical implications and considerations for future research are also discussed.
Diversity and Phylogeny of Insect Trypanosomatids Based on Small Subunit rRNA Genes: Polyphyly of Leptomonas and Blastocrithidia

Abstract With the aim of further investigating phylogenetic relationships in insect trypanosomatids, we have determined the sequences of small subunit rRNA genes from ten isolates, which were originally classified as Leptomonas, Blastocrithidia, and Wallaceina based on their morphology in the hosts. The inferred maximum likelihood, parsimony, and distance trees indicate that the Leptomonas and Blastocrithidia are polyphyletic, and confirm the polyphyly of Herpetomonas and Crithidia. Blastocrithidia triatoma and Leptomonas collosoma were among the earliest branching lineages among the insect trypanosomatids, while most other isolates were found within a closely related terminal clade, which also included Crithidia fasciculata. This analysis has clearly demonstrated that the morphological classification system of insect trypanosomatids does not always reflect their genetic affinities warranting its revision in the future.
Capacity of MIMO channels: a volumetric approach

This paper deals with the problem of computing channel capacity for wireless communications systems with multi-antennas. The system is modeled using a transmit volume, a receive volume and a set of reflective scatterers. Based on the author's previous work on channel modeling of such a system, we give a multi-input-multi-output model for communications between arbitrary antenna arrays in two volumes. Together with a novel noise model for describing interferences, we derive formulas for channel capacity and capacity bounds. In particular, our results give conclusions which agree with intuition: (i) in the case where the transmitter knows the channel, the channel capacity saturates to a constant when the number of transmit/receive antennas increases beyond a certain threshold; (ii) in the case where the transmitter des not know the channel, the channel capacity still saturates when the receive antennas increases but decays when the number of transmit antennas increases beyond a certain threshold.
Corrigendum: Computing selected eigenvalues of sparse unsymmetric matrices using subspace iteration

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Mental illness etiology beliefs among African American men with serious mental illness and their social support networks

ABSTRACT Semi-structured qualitative interviews were conducted with 26 African American men with serious mental illness who were consumers of community mental health services and 26 members of their social support networks. All participants were asked what they believed had caused the consumers’ mental illness. Consumer participants most commonly identified chronic life stressors as a causal factor, while social supports most often identified intrinsic factors such as genetics or biology as causes of mental illness. Some support participants believed that unintentional drug use had precipitated the onset of mental illness or had no causal theories. The fact that some support participants could not identify a causal explanation may indicate failure on the part of mental health care systems to engage with consumers’ social support networks and provide education about mental illness and its causes. The implications of etiology beliefs on mental health service utilization are discussed.
EFFECT OF ASHWAGANDHA (WITHANIA SOMNIFERA) ROOT POWDER SUPPLEMENTATION ON THE VO2 MAX. AND HEMOGLOBIN IN HOCKEY PLAYERS

Withania Somnifera (WS) is used as adaptogen, antiarthritic, antispasmodic, anti-inflammatory, nervine tonic, nerve soothing, antioxidant, immunomodulator, free radical scavenger, anti-stress and anti-cancer agent. But ergogenic value of WS as nutritional supplement is yet to be established. Objectives: Present study was designed to investigate the effect of supplementation of WS on the VO2max and Haemoglobin in Hockey Players. Method: Thirty two male hockey players, with a mean age of 17.4 ± 1.7 years and BMI 20.9 ± 2.9 kg/m2 volunteered for the study. Subjects were randomly assigned into two groups Group I (n=16): Withania somnifera group (experimental group) and Group II (n=16): Placebo (control) group. The experimental group received 500 mg capsules of aqueous roots of Ashwagandha twice daily for eight weeks, whereas the placebo group received starch capsules. Maximal oxygen consumption capacity in ml/kg/min (VO2max.) with Cooper (1968) 12 min. run test and hemoglobin (Hb) of both experimental and control groups were measured before and after the administration of Withania somnifera and placebo respectively. Results: A significant improvement in the VO2max (t = 2.98, p< 0.01) and hemoglobin (t = 2.78, p < 0.01) in experimental group was found. Whereas not any significant change in pre test and post test values of VO2max and Hb was observed in the placebo group. Conclusion: Supplementation of Withania Somnifera improves VO2max and hemoglobin concentration in young hockey players.
Kinetics of Diol and Hydroxybenzo[a]pyrene Metabolites in Relation to DNA Adduct Formation and Gene Expression in Rats

Benzo[a]pyrene (BaP) is a human carcinogen, but there are no validated biomarkers of exposure and the relationship of carcinogenesis with early biological alterations is not fully documented. This study aimed at better documenting the toxicokinetics of diolBaP and hydroxyBaP metabolites as potential biomarkers of exposure to BaP in relation to DNA adduct formation and gene expression. Rats were intravenously (iv) injected with 40 μmol/kg BaP. BaP and several metabolites were measured in blood, tissues, and excreta collected at frequent intervals over 72 h posttreatment. BaP diol epoxide (BaPDE)–DNA adduct formation and gene expression were assessed in lungs. 3-HydroxyBaP (3-OHBaP) and 4,5-diolBaP were the most abundant measured metabolites, and differences in time courses were apparent between the two metabolites. Over the 0–72 h period, mean proportions of BaP dose recovered in urine as 3-OHBaP and 4,5-diolBaP (±SD) were 0.017 ± 0.003% and 0.1 ± 0.03%. Corresponding values in feces were 1.5 ± 0.5% and 0.42 ± 0.052%. BaPDE–DNA adducts were significantly increased in lungs and a correlation was observed with urinary 3-OHBaP and 4,5-diolBaP. Analysis of gene expression showed a modulation of expression of metabolic genes (Cyp1a1, Cyp1b1, Nqo1, Ahr) and oxidative stress and repair genes (Nrf2, Rad51). However, BaPDE adducts formation did not exhibit any significant correlation with expression of genes, except a negative correlation with Rad51 expression. Similarly, there was no significant correlation between urinary excretion of OHBaP and diolBaP and expression of genes, except for urinary 7-OHBaP excretion, which was negatively correlated with Rad51 expression. Results indicate that concomitant measurements of diolBaP and OHBaP may serve to better assess the extent of exposure as compared to single metabolite measurements, given kinetic differences between metabolites. Further, although some urinary metabolites were correlated with BaPDE adducts, links with gene expression need to be further investigated.
Lunin-Maldacena Deformations With Three Parameters

: We examine the solution generating symmetries by which Lunin and Maldacena have generated the gravity duals of β -deformations of certain ﬁeld theories. We identify the O (2 , 2 , IR) matrix, which acts on the background matrix E = g + B , where g and B are the metric and the B-ﬁeld of the undeformed background, respectively. This simpliﬁes the calculations and makes some features of the deformed backgrounds more transparent. We also ﬁnd a new three-parameter deformation of the Sasaki-Einstein manifolds T 1 , 1 and Y p,q . Following the recent literature on the three-parameter deformation of AdS 5 × S 5 , one would expect that our new solutions should correspond to non-supersymmetric marginal deformations of the relevant dual ﬁeld theories.
Information extraction by an abstractive text summarization for an Indian regional language

The Internet provides many sources of different opinions, expressed through user reviews of products, blogs, and forum discussions. Systems which could automatically summarize these opinions would be immensely useful for those who wish to use this information to make decisions. The previous work in automatic summarization has completely focused on extractive summarization, in which key sentences are identified from the source text and extracted to form the output. An alternative solution is abstractive summarization in which the information from the source text is first extracted into the form of abstract data which is then post processed to infer the most important message from the original text. This work is built upon past work of extractive summarization methods to create abstractive summaries by creating new sentences in it. This paper conveys the methodology for the abstractive summarization process and its evaluation considering Telugu, a south Indian regional language, as the language of study.
A note on bounded weighted graphic metric TSP

For metric TSP, Christofides’ heuristic is still the best known approximation algorithm with its 3/2 guarantee. The set of graphic metrics and the set of (1,2)-metrics are some of the few classes known to admit a better-than-3/2 approximation algorithm. In this paper we investigate TSP for so-called βbounded metrics and determine that, for any β ≥ 1, the randomized approach of Oveis Gharan, Saberi and Singh [5] achieves a better-than-3/2 guarantee for β-bounded metrics. A metric space is called a β-bounded weighted graphic metric (β-bounded metric, for short) if it is realized by shortest path distances in a graph with edge-lengths between 1 and β. This result broadens the class of metric spaces with a better-than-3/2 approximation guarantee.
EDZL Schedulability Analysis in Real-Time Multicore Scheduling

In real-time systems, correctness depends not only on functionality but also on timeliness. A great number of scheduling theories have been developed for verification of the temporal correctness of jobs (software) in such systems. Among them, the Earliest Deadline first until Zero-Laxity (EDZL) scheduling algorithm has received growing attention thanks to its effectiveness in multicore real-time scheduling. However, the true potential of EDZL has not yet been fully exploited in its schedulability analysis as the state-of-the-art EDZL analysis techniques involve considerable pessimism. In this paper, we propose a new EDZL multicore schedulability test. We first introduce an interesting observation that suggests an insight toward pessimism reduction in the schedulability analysis of EDZL. We then incorporate it into a well-known existing Earliest Deadline First (EDF) schedulability test, resulting in a new EDZL schedulability test. We demonstrate that the proposed EDZL test not only has lower time complexity than existing EDZL schedulability tests, but also significantly improves the schedulability of EDZL by up to 36.6 percent compared to the best existing EDZL schedulability tests.
Marketing Mutual Funds

Marketing and distribution expenses are responsible for about one-third of the cost of active management in the mutual fund industry. Estimating a structural model with costly investor search and learning about fund skill, we find that marketing is nearly as important as performance and fees in determining fund size. Eliminating marketing substantially improves welfare: capital shifts toward cheaper funds and competition decreases fees; active funds shrink and capital allocation becomes more closely aligned with skill. Declining investor search costs imply a reduction in marketing expenses and management fees as well as a shift toward passive investing, as observed empirically.
Structural-functional brain connectivity underlying integrative sensorimotor function after stroke

Structural-Functional Brain Connectivity Underlying Integrative Sensorimotor Function after Stroke In this dissertation research project we demonstrated the relationship between the structural and functional connections across the brain in stroke survivors. We used this information to predict arm function in stroke survivors, suggesting that the tools developed through this research will be useful for prescribing individualized rehabilitation strategies in people after stroke. Current clinical methods for rehabilitating sensorimotor function after stroke are not based on the locus of injury in the brain. Instead, therapies are generalized, treating symptoms such as weakness and spasticity. This results in outcomes that are highly variable, with severity of impairment immediately following stroke as the best predictor of recovery. By using measures of brain structural and functional relations, we can better prognosticate and plan rehabilitation interventions. This research study utilized diffusion and functional magnetic resonance imaging (MRI) to quantify anatomical connectivity and functional networks of the brain after stroke. In the first aim, diffusion MRI was used to track the white matter pathways throughout the entire brain. A new imaging biomarker sensitive to stroke lesions was developed that quantifies the level of anatomical connections between every point in the brain. It was found that cortical areas most responsible for integration of sensorimotor and multisensory integration were the best predictors of motor impairments in chronic stroke subjects. Our second aim investigated the role of multisensory integration during sensorimotor control in healthy adults and stroke survivors. A novel functional MRI task paradigm involving wrist movement was developed to gain insight into the effects of multimodal sensory feedback on brain functional networks in stroke subjects. We found that the loss of functional interactions between the cerebellum and lesioned sensorimotor area were correlated with loss of movement function. Our final aim investigated the relationship between structural and functional connectivity after stroke. A model that marries diffusion MRI fiber tracking and resting-state functional MRI was designed to enhance indirect functional connections with structural information. The technique was capable of detecting changes in cortical networks that were not seen in functional or structural analysis alone. These changes were associated with movement performance. In conclusion, structure is essential to functional networks and ultimately, recovery of functional movements after stroke.
Pipelining Based Floating Point Division: Architecture and Modeling

In this paper, an efficient FPGA based architecture for a fractional division based on Newton-Raphson method for IEEE single-precision floating point number is presented. With advent of more graphic, scientific and medical applications, floating point dividers have become indispensable and increasingly important. However, most of these modern applications need higher frequency or low latency of operations with minimal area occupancy. In this work, highly optimized pipelined architecture of an IEEE-754 single precision floating point divider is designed to achieve high frequency on FPGA. The division is performed by multiplying the numerator by the reciprocal value of the denominator and the initial approximation of the denominator is obtained from a Look-up Table. Index Terms—FPGA, Newton-Raphson Method, IEEE 754 Single precision format, VHDL
A Biased Expectation Equilibrium in Indeterminate DSGE Models

The aim of this article is to introduce a solution method for an indeterminate dynamic stochastic general equilibrium (DSGE) model. The method uses the concept of a biased expectation equilibrium, which is defined in this paper and means that expectations of certain variable are mechanically biased against those that would be rational. Our method should be particularly useful in terms of empirical estimation using DSGE models, because it will allow researchers to estimate how much agents’ expectations are biased in the case where a model has indeterminacy.
Enteritis as initial manifestation of systemic lupus erythematosus in early pregnancy

Rational: Lupus enteritis is a rare, severe complication of systemic lupus erythematosus (SLE). We report of a patient who presented with enteritis as manifestation of new-onset SLE during the first trimester of pregnancy. Patients concerns: The 23-year nulliparous patient was admitted to a district hospital with abdominal pain, nausea, vomiting and bloody diarrhea at a gestational age (GA) of 10 weeks. Her symptoms improved with symptomatic treatment and she was discharged a few days later. At 15 weeks’ of gestation she was readmitted. Her lab results revealed mild anemia and thrombocytopenia. Ascites, renal failure and proteinuria developed. An infectious cause was suspected, but stool samples and urine cultures were negative. Diagnostic work-up included abdominal ultrasound, gastro- and sigmoidoscopy, magnetic resonance imaging (MRI), and diagnostic laparoscopy. Ultrasound and MRI revealed dilated, fluid-filled small bowel loops, and increased colonic wall diameters. Mucosal edema and petechiae were detected by sigmoidoscopy, and histopathologic examination of the biopsies revealed erosive inflammation. Due to progressive deterioration she was transferred to our center. In addition to ascites, pleural and pericardial effusions had developed. Diagnosis: Diagnosis of SLE was finally established at GA 16 after an autoimmune workup revealed positive antinuclear, anti- Sm, anti-dsDNA and anti-U1RNP antibodies. An interdisciplinary team was set up for her management. She was commenced on corticosteroids; response was only partial and necessitated addition of cyclosporine. The further clinical course was complicated by anemia, chest wall shingles, hypertension, and progressive cervical shortening. Serial ultrasound and Doppler examinations revealed notching of the uterine arteries with raised pulsatility indices and fetal growth restriction. Intervention: At GA 35 abdominal pain reoccurred; a decision for delivery was taken. An apparently healthy fetus was delivered by cesarian section with good Apgar scores and pH (2100g, 9. percentile). The postoperative / postnatal course was unremarkable. Outcomes: New-onset SLE during pregnancy is rare, as is lupus enteritis. To our knowledge, our case is the first report of a combination of both. Lessons: Diagnostic delay occurred a result of symptom overlap and limitations in diagnostic imaging. Interdisciplinary teamwork resulted in successful outcome for both, mother and fetus.
Designing a tri-band concurrent Doherty power amplifier

The design, realization and test of a tri-band concurrent Doherty power amplifier (DPA) is presented. The prototype has been realized in hybrid technology using GaN HEMT devices. The operating bands have been selected around the following carrier frequencies f<sub>1</sub> = 1.84GHz, f<sub>2</sub> = 2.14GHz and f<sub>3</sub> = 2.65GHz corresponding to LTE, UMTS and WiMax applications, respectively. The prototype has been tested and successfully linearized with a 10-MHz LTE signal at f<sub>1</sub> and a 10-MHz two carriers WCDMA signals at f<sub>2</sub> and f<sub>3</sub>, showing promising results.
Impact of dietary gut microbial metabolites on the epigenome

Within the past decade, epigenetic mechanisms and their modulation by natural products have gained increasing interest. Dietary bioactive compounds from various sources, including green tea, soya, fruit and berries, cruciferous vegetables, whole grain foods, fish and others, have been shown to target enzymes involved in epigenetic gene regulation, including DNA methyltransferases, histone acetyltransferases, deacetylases and demethylases in vitro and in cell culture. Also, many dietary agents were shown to alter miRNA expression. In vivo studies in animal models and humans are still limited. Recent research has indicated that the gut microbiota and gut microbial metabolites might be important mediators of diet–epigenome interactions. Inter-individual differences in the gut microbiome might affect release, metabolism and bioavailability of dietary agents and explain variability in response to intervention in human studies. Only a few microbial metabolites, including folate, phenolic acids, S-(−)equol, urolithins, isothiocyanates, and short- and long-chain fatty acids have been tested with respect to their potential to influence epigenetic mechanisms. Considering that a complex mixture of intermediary and microbial metabolites is present in human circulation, a more systematic interdisciplinary investigation of nutri-epigenetic activities and their impact on human health is called for. This article is part of a discussion meeting issue ‘Frontiers in epigenetic chemical biology’.
Tight Bounds for Consensus Systems Convergence

We analyze the asymptotic convergence of all infinite products of matrices taken in a given finite set, by looking only at finite or periodic products. It is known that when the matrices of the set have a common nonincreasing polyhedral norm, all infinite products converge to zero if and only if all infinite periodic products with period smaller than a certain value converge to zero, and bounds exist on that value. We provide a stronger bound holding for both polyhedral norms and polyhedral seminorms. In the latter case, the matrix products do not necessarily converge to 0, but all trajectories of the associated system converge to a common invariant space. We prove our bound to be tight, in the sense that for any polyhedral seminorm, there is a set of matrices such that not all infinite products converge, but every periodic product with period smaller than our bound does converge. Our technique is based on an analysis of the combinatorial structure of the face lattice of the unit ball of the nonincreasing seminorm. The bound we obtain is equal to half the size of the largest antichain in this lattice. Explicitly evaluating this quantity may be challenging in some cases. We therefore link our problem with the Sperner property: the property that, for some graded posets, -- in this case the face lattice of the unit ball -- the size of the largest antichain is equal to the size of the largest rank level. We show that some sets of matrices with invariant polyhedral seminorms lead to posets that do not have that Sperner property. However, this property holds for the polyhedron obtained when treating sets of stochastic matrices, and our bound can then be easily evaluated in that case. In particular, we show that for the dimension of the space $n \geq 8$, our bound is smaller than the previously known bound by a multiplicative factor of $\frac{3}{2 \sqrt{\pi n}}$.