Miracle-dz/UniFAR-FTUs huggingface dataset:
A classification scheme for magnetars

We investigate cumulative burst occurrence trends of five soft gamma repeaters (SGRs) and introduce an indicative mea-sure for the duration of their outburst phases. We find a clear distinction between the durations of the active episodes of persistent and transient magnetars: The outburst episodes of the persistent sources are significantly longer (≲100 days) than those of transient sources (≲10 days). We also investigate burst-induced changes in the radiative behavior of transient sources and suggest a mechanism for the constant flux trend seen in the early phases of the outburst of SGRs with low burst rates. (© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
THE PERIODIC ISOPERIMETRIC

Given a discrete group G of isometries of R 3 , we study the G isoperimetric problem , which consists of minimizing area (modulo G ) among surfaces in R 3 which enclose a G -invariant region with a prescribed volume fraction. If G is a line group, we prove that solutions are either families of round spheres or right cylinders. In the doubly periodic case we prove that for most rank two lattices, solutions must be spheres, cylinders or planes. For the remaining rank two lattices we show, among other results, an isoperimetric inequality in terms of the topology of the isoperimetric surfaces. Finally, we study the case where G = Pm 3 m (the group of symmetries of the integer rank three lattice Z 3 ) and other crystallographic groups of cubic type. We prove that isoperimetric solutions must be spheres if the prescribed volume fraction is less than 1 = 6, and we give an isoperimetric inequality for G -invariant regions that, for instance, implies that the area (modulo Z 3 ) of a surface dividing the three space in two G -invariant regions with equal volume fractions, is at least 2 : 19 (the conjectured solution is the classical P Schwarz triply periodic minimal surface whose area is (cid:24) 2 : 34). Another consequence of this isoperimetric inequality is that Pm 3 m -symmetric surfaces (other than families of spheres) cannot be isoperimetric for the lattice group Z 3 .
A Stable and Energy Efficient Clustering Algorithm for Mobile AD HOC Networks

: Wireless ad hoc network is a network of portable devices that can be able to function without any infrastructure. It is having the self-organizing capability without any centralized coordinator. Clustering is a process of hierarchically organizing nodes. Clustering consists of a set of mobile nodes that work together and so it can be viewed as a single system. Since the volatile nature of the mobile nodes, their associations to and from the clusters affects the stability of the cluster. This unstable nature of nodes results in higher rate of re-clustering and re-affiliations. To enhance the stability of the network, in this paper, we introduce a stable and energy efficient clustering algorithm (SECA). We have formulated a novel method that effectively balances all the parameters like node mobility, energy and degree of the node. The simulation results clearly indicate that the proposed clustering scheme considerably reduce the average number of re-affiliations, reclustering and increase the stability of the cluster.
Pentoxifylline Inhibits Adhesion and Activation of

We have herein studied the effect of pentoxifylline (PTX) on the adhesion and activation of human T lymphocytes. We found that PTX inhibited the adhesion of T cells to the b 1 and b 2 integrin ligands VCAM-1 and ICAM-1; this inhibitory activity was dose dependent, with a maximal effect from 12 to 24 h. We also found that PTX was able to interfere with the activation of b 1 integrins induced by intracellular signals; however, the conformational change of b 1 integrins induced by extracellular stimuli (e.g., activating mAbs, or Mn 2 1 ) was not signiﬁcantly affected by this drug. In addition, the homotypic aggregation of T cells induced by anti- b 1 and - b 2 integrin chain mAbs was also inhibited by PTX. PTX had a signiﬁcant inhibitory effect on the T lymphocyte expression of the activation Ags CD25 (IL-2R a -chain), CD69 (activation-inducer molecule), and CD98 (4F2) induced by PHA. Accordingly, PTX also interfered with early cell activation events such as the rise in intracellular Ca 2 1 and the activation of the Na 1 /H 1 antiporter induced by PHA and phorbol esters, respectively. Furthermore, this drug inhibited both the cell cycle progression and cell proliferation of T cells induced through the CD3/TCR complex. However, this drug did not show any effect on the cell activation/proliferation induced by PMA plus ionomycin. Our results indicate that PTX interferes efﬁciently with the activation and cell adhesion of human T lymphocytes. These effects may be
Institutional Knowledge at Singapore Management University Double Updating Online Learning

In most kernel based online learning algorithms, when an incoming instance is misclassiﬁed, it will be added into the pool of support vectors and assigned with a weight, which often remains unchanged during the rest of the learning process. This is clearly insufﬁcient since when a new support vector is added, we generally expect the weights of the other existing support vectors to be updated in order to reﬂect the inﬂuence of the added support vector. In this paper, we propose a new online learning method, termed Double Updating Online Learning , or DUOL for short, that explicitly addresses this problem. Instead of only assigning a ﬁxed weight to the misclassiﬁed example received at the current trial, the proposed online learning algorithm also tries to update the weight for one of the existing support vectors. We show that the mistake bound can be improved by the proposed online learning method. We conduct an extensive set of empirical evaluations for both binary and multi-class online learning tasks. The experimental results show that the proposed technique is considerably more effective than the state-of-the-art online learning algorithms. The source code is available to public at http://www.cais. ntu.edu. sg/˜chhoi/DUOL/ .
Retrieving Ambiguous Sounds Using Perceptual Timbral Attributes in Audio Production Environments

For over an decade, one of the well identified problem within audio production environments is the effective retrieval and management of sound libraries. Most of the self-recorded and commercially produced sound libraries are usually well structured in terms of meta-data and textual descriptions and thus allowing traditional text-based retrieval approaches to obtain satisfiable results. However, traditional information retrieval techniques pose limitations in retrieving ambiguous sound collections (ie. sounds with no identifiable origin, foley sounds, synthesized sound effects, abstract sounds) due to the difficulties in textual descriptions and the complex psychoacoustic nature of the sound. Early psychoacoustical studies propose perceptual acoustical qualities as an effective way of describing these category of sounds[1]. In Music Information Retrieval (MIR) studies, this problem were mostly studied and explored in context of content-based audio retrieval. However, we observed that most of the commercial available systems in the market neither integrated advanced content-based sound descriptions nor the visualization and interface design approaches evolved in the last years. Our research was mainly aimed to investigate two things; 1. Development of audio retrieval system incorporating high level timbral features as search parameters. 2. Investigate user-centered approach in integrating these features into audio production pipelines using expert-user studies. In this project, We present an prototype which is similar to traditional sound browsers (list-based browsing) with an added functionality of filtering and ranking sounds by perceptual timbral features such as brightness, depth, roughness and hardness. Our main focus was on the retrieval process by timbral features. Inspiring from the recent focus on user-centered systems ([2], [3]) in the MIR community, in-depth interviews and qualitative evaluation of the system were conducted with expert-user in order to identify the underlying problems. Our studies observed the potential applications of high-level perceptual timbral features in audio production pipelines using a probe system and expert-user studies. We also outlined future guidelines and possible improvements to the system from the outcomes of this research.
Accuracy of Self-reported Height and Weight in low-income, Rural African American Children of Child & Adolescent Behavior

Objective: To validate self-report anthropometric data in a sample of low-income, rural African American youth. Methods: Ninety-two youth, 10.16 ± 0.85 years of age, were recruited from one school in a rural area of the southeast U.S. Youth were asked to self-report height and weight prior to having their height and weight measurements recorded by trained researchers. Body Mass Index (BMI) was calculated and BMI percentile rank (BMIpct) were used to classify adolescents as non-overweight/obese or overweight/obesity. Differences between measured and self-reported values were assessed using paired t-tests, and differences between weight categories were examined with independent t-tests. Agreement between classification of overweight/obesity by self-report and measured values was assessed using Chi Square. Results: Self-report and measured weight, but not height, differed significantly with the self-reported weight value being 3.1 kg lower than the measured value. Neither height nor weight differed between methods for non-overweight/obese youth. For overweight/obese youth, height values were similar but weight values differed between methods (p<0.001) with overweight/obese youth under-reporting their weight to a greater extent than non-overweight/obese youth (-8.3 + 9.9 vs. -0.74 + 5.0; p<0.001). The prevalence of overweight/obesity from measured values was 31.5% compared to 30.4% from self-reported values. However, the sensitively was low (58.6%) because of overweight/obese youth’s inability to accurately self-report their weight. Conclusion: The use of self-reported heights and weights for deriving estimates of overweight/obesity rates in lower-income, rural African American youth was not supported by this study.
Regulation of Sulfate Assimilation in Plants1 ASSIMILATORY SULFATE REDUCTION DURING ONTOGENESIS OF PRIMARY LEAVES OF

The correlation between the extractable activities of three key enzymes of assimilatory sulfate reduction and the in vivo incorporation of 35SO42-into amino acids, proteins, and sulfolipids was investigated from greening to senescence in primary leaves of beans (Phlseoh,s vulgaris L.). The total extractable activity of ATP sulfurylase (EC 2.7.7.4) and of adenosine 5'- phosphosulfate sulfotransferase reached a maximum in the leaves of approximately 7- and 11-day-old seedlings, respectively. During senescence, there was a decrease in both enzyme activities. After approximately 17 days, no appreciable activities remained. In contrast, total O-acetyl-L- serine sulfhydrylase (EC 4.3.99.8) activity'decreased to only approximately 50% ofthe maximal value during the same period. The in vivo incorporation of 35SO42- into amino acid and protein fractions showed a time-course similar to that of the total extractable adenosine 5T-phosphosulfate sulfotransferase activity. Both cysteine and sulfate markedly decreased during senescence. The total extractable activity of ribulosebisphosphate carbox-ylase (EC 4.1.1.39) was maximal in the primary leaves of 13-day-old seedlings, and approximately 40% of this value was still detectable after 17 days. Taken together with results from the literature, these results show that assimilatory sulfate reduction in primary leaves of P. vulgaris L. stops before CO2 and nitrate assimilation.
Identiﬁcation and Characterization of an Active Plasmid Partition Mechanism for the Novel Lactococcus lactis Plasmid pCI2000

The replication region of the lactococcal plasmid pCI2000 was subcloned and analyzed. The nucleotide sequence of one 5.6-kb Eco RI fragment which was capable of supporting replication when cloned on a replication probe vector revealed the presence of seven putative open reading frames (ORFs). One ORF exhibited signiﬁcant homology to several replication proteins from plasmids considered to replicate via a theta mode. Deletion analysis showed that this ORF, designated repA , is indeed required for replication. The results also suggest that the origin of replication is located outside repA . Upstream and divergently transcribed from repA , an ORF that showed signiﬁcant (48 to 64%) homology to a number of proteins that are required for faithful segregation of chromosomal or plasmid DNA of gram-negative bacteria was identiﬁed. Gene inter- ruption and transcomplementation experiments showed that this ORF, designated parA , is required for stable inheritance of pCI2000 and is active in trans . This is the ﬁrst example of such a partitioning mechanism for plasmids in gram-positive bacteria.
Research on Access control Method by User Authority using Two-Factor Authentication

With the recent development of IT society, the value of knowledge information has been focused more importantly. However, the accidents of personal and corporate secrets being leaked frequently happen, and also the damage is getting bigger day by day. The important information of individuals and businesses is leaked or processed by outside attacks or personal mistakes, thus misused, and thereby considerable damage is occurring. For this reason, the necessity of how to effectively manage personal and corporate information is emerging. This study intends to suggest a method that can protect servers and media information, which requires security. The access control method suggested here uses a way that grants users authority by grade and authenticates users through Two-Factor Authentication method.
_MONOPOLY POWER CAN BE DISADVANTAGEOUS

We study a Markov equilibrium for the case where a monopolist extracts a nonrenewable resource which is converted to a durable good, which then depreciates at a constant rate. We show that in a stationary, continuous time model (infinite horizon, infinitesimal period of commitment) monopoly power can be disadvantageous. Numerical experiments c o n f i that this can also occur in a finite horizon, discrete model. This result is compared to previous examples of disadvantageous market power, obtained using two-period models. JEL Classification numbers: D42, L12, Q39
Serum β2‐microglobulin: An independent risk factor for mortality in patients with acute respiratory distress syndrome caused by bacterial infection

Liming Zhang (  zhangliming@bjcyh.com ) Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University Na Cui Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University Xiaokai Feng Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University Chunguo Jiang Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University Jing Wang Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University
Vibrational Spectroscopy Saliva Proﬁling as Biometric Tool for Disease Diagnostics: A Systematic Literature

: Saliva is a bioﬂuid that can be considered as a “mirror” reﬂecting our body’s health status. Vibrational spectroscopy, Raman and infrared, can provide a detailed salivary ﬁngerprint that can be used for disease biomarker discovery. We propose a systematic literature review based on the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines to evaluate the potential of vibrational spectroscopy to diagnose oral and general diseases using saliva as a biological specimen. Literature searches were recently conducted in May 2020 through MEDLINE-PubMed and Scopus databases, without date limitation. Finally, over a period of 10 years, 18 publications were included reporting on 10 diseases (three oral and seven general diseases), with very high diagnostic performance rates in terms of sensitivity, speciﬁcity, and accuracy. Thirteen articles were related to six di ﬀ erent cancers of the following anatomical sites: mouth, nasopharynx, lung, esophagus, stomach, and breast. The other diseases investigated and included in this review were periodontitis, Sjögren’s syndrome, diabetes, and myocardial infarction. Moreover, most articles focused on Raman spectroscopy ( n = 16 / 18) and more speciﬁcally surface-enhanced Raman spectroscopy ( n = 12 / 18). Interestingly, vibrational spectroscopy appears promising as a rapid, label-free, and non-invasive diagnostic salivary biometric tool. Furthermore, it could be adapted to investigate subclinical diseases—even if developmental studies are required.
Microbial community dynamics based on 16S rRNA gene proﬁles in a Paciﬁc Northwest estuary and its tributaries

We analyzed bacterioplankton community structure in Tillamook Bay, Oregon and its tributaries to evaluate phylogenetic variability and its relation to changes in environmental conditions along an estuarine gradient. Using eubacterial primers, we ampliﬁed 16S rRNA genes from environmental DNA and analyzed the PCR products by length heterogeneity polymerase chain reaction (LH-PCR), which discriminates products based on naturally occurring length diﬀerences. Analysis of LH-PCR proﬁles by multivariate ordination methods revealed diﬀerences in community composition along the estuarine gradient that were correlated with changes in environmental variables. Microbial community diﬀerences were also detected among diﬀerent rivers. Using partial 16S rRNA sequences, we identiﬁed members of dominant or unique gene fragment size classes distributed along the estuarine gradient. Gammaproteobacteria and Betaproteobacteria and members of the Bacteroidetes dominated in freshwater samples, while Alphaproteobacteria , Cyanobacteria and chloroplast genes dominated in marine samples. Changes in the microbial communities correlated most strongly with salinity and dissolved silicon, but were also strongly correlated with precipitation. We also identiﬁed speciﬁc gene fragments that were correlated with inorganic nutrients. Our data suggest that there is a signiﬁcant and predictable change in microbial species composition along an estuarine gradient, shifting from a more complex community structure in freshwater habitats to a community more typical of open ocean samples in the marine-inﬂuenced sites. We also demonstrate the resolution and power of LH-PCR and multivariate analyses to provide a rapid assessment of major community shifts, and show how these shifts correlate with environmental variables.
Emotional Intelligence and Psychopathology in Schizophrenia

Deficits in social cognition, emotion perception and thinking have been extensively documented in schizophrenia either during the course or even in prodromal phase and are associated with poor psychosocial functioning. The present study aimed to explore the associations among emotional intelligence and positive and negative syndromes in the patients with schizophrenia. A sample of 30 male patients with schizophrenia within age range of 18-45 years was taken. Patients were selected by purposive sampling on the basis of inclusion and exclusion criteria from the inpatient department of a psychiatry Institute. PANSS and MSREIS-R were administered on the patients to assess positive, negative symptoms and general symptoms and different components of emotional intelligence respectively. The results revealed that two components of emotional intelligence (a) ability to manage emotions in others (b) total score of MSREIS-R were significantly associated with negative and general symptoms. upper middle economics status. Mean and standard deviation of the continuous variable like, age, age of onset, and duration of illness were determined. The mean age of the sample is 34.60 with a standard deviation of 6.85. Minimum age of onset of the sample is 20.11 with maximum age of onset being 33.29. Duration of illness varies from 2.23 to 12.31.
BRI2 INTERACTS WITH APP AND REGULATES A β PRODUCTION

Transmembrane proteins BRI2 and APP co-localize with A β amyloid lesions in sporadic Alzheimer’s disease and mutations in both precursor proteins are linked to early-onset familial cases of cerebral amyloidosis associated with dementia and/or cerebral haemorrhage. A specific interaction between BRI2 and APP was unveiled by immunoprecipitation experiments using transfected and non-transfected cells. The use of deletion mutants further revealed that stretches 648-719 of APP751 and 46-106 of BRI2, both inclusive of the full transmembrane domains, are sufficient for the interaction. the and
Vitamin E: A Nutritional Supplementation for Curbing Age Related Neurodegenerative Diseases Progression

Background: Oxidative stress has been described as a well-established causative factor to deteriorate neurons and is associated with ageing and age related neurodegenerative disorders. Vitamin E is a lipophilic natural antioxidant and the generic term for tocopherols and tocotrienols. Vitamin E acts as an antioxidant which play a very important role for normal neurological function as well as in neurodegenerative disease that it is being treated. It is most effective in Alzheimer’s Disease (AD) and has been shown to play a central role in neuroprotection and found to be in effective for neuroprotection in Parkinson’s Disease (PD). Vitamin E is a chain breaking antioxidant which acts as a non-specific protective chemical shield for neurons and protects neurons through antioxidant-independent pathways; they are highly effective and further investigations on their activity might lead to an even more effective application of antioxidants. Reactive oxygen species and free radical generation can lead to neuronal damage associated with AD, PD, amyotrophic lateral sclerosis, Huntington Disease (HD) and cerebral ischemic stroke many signs of oxidative damage. From this review, we would like to highlight the importance of vitamin E in neuroprotection. Conclusion: Since, Vitamin E therapy has not proven promising results in clinical trial; it could suggest that if a person uses vitamin irregularly, as a nutritional supplement, they may have less progression of neurodegenerative disease.
Dislocated Negative Feedback Control with Partial Replacement between Chaotic Lorenz Systems

In order to obtain asymptotical synchronization, we combine negative feedback control and dislocated negative feedback control with partial replacement to the nonlinear terms of the response system, a coupling version that was less explored. All these unidirectional coupling schemes are applied between Lorenz systems where we consider some values for the control parameters that lead to chaotic behavior. The sufficient conditions for global stable synchronization are obtained from a different approach of the Lyapunov direct method for the transversal system. In one of the coupling we apply a result based on the classification of the symmetric matrix AT + A as negative definite, where A is characterizing the transversal system. In the other couplings presented here, the sufficient conditions are based on the derivative increase of an appropriate Lyapunov function. In fact, the effectiveness of the coupling between systems with equal dimension follows from the 338 Ros´ario D. Laureano, Diana A. Mendes and Manuel Alberto M. Ferreira analysis of the synchronization error, e(t), and, if the system variables can be bounded by positive constants, then the derivative of an appropriate Lyapunov function can be increased as required by the Lyapunov direct method.