Miracle-dz/UniFAR-FTUs huggingface dataset:
Coordinate Dependence of Chern-Simons Theory on Noncommutative AdS(3)

We investigate the coordinate dependence of noncommutative theory by studying the solutions of noncommutative U(1, 1)× U(1, 1) Chern-Simons theory on AdS3 in polar and rectangular coordinates. We assume that only the space coordinates are noncommuting. When the two coordinate systems are equivalent only up to first order in the noncommutativity parameter θ, we investigate the effect of this non-exact equivalence between the two coordinate systems for two cases, a conical solution and a BTZ black hole solution in noncommutative AdS3, by using the Seiberg-Witten map. In each case, the noncommutative solutions in the two coordinate systems obtained from the same corresponding commutative solution turn out to be different even to the first order in θ.
The Design of the Mobile Phone Module Information Encryption System Based on FPGA

Today's society is more and more tends to the development of information technology and the popularity of mobile phones also makes personal information security issues concerned. The security transmission of mobile phone text messaging is particularly important. This article mainly designs a hardware encryption system based on GSM FPGA module and uses RSA public key encryption algorithm and implements the design of SMS encryption system. Currently RSA public encryption algorithm has become the most important password, which making up the RSA encryption algorithm slowly and exerting vital advantage of the large space of RSA algorithm key because of the speediness of hardware encryption, excellent reliability and good stability. Experiments show that FPGA-based RSA encryption system of this article proposing can guarantee the secure transmission of information and enhance the security of SMS transmission.
A retrieval model for question in community question answering system

Studies of Community-based question and answer services (cQA) have grown to be one of the emerging trends in Web information services. And one of the main tasks is to retrieve similar questions. To identify the fact that some questions with different expressions though may indeed have the same, or very similar, meaning, the similar questions are defined in syntactic, semantic and pragmatic aspects according to user retrieval intention. Five models including Language Model, Translation-based Language Model, Parser-based model, LDA and WordNet source-based model are selected as baselines. Integrated models which linearly combine WordNet, Stanford Parser and Language Model and further weighted by syntactic feature are proposed to integrate features of the three aspects. Experiment results show that our integrated models perform better than the basic models, especially when the linear combination of the WordNet model and the Stanford Parser model is weighted by syntactic information with proper noun phrases as representative. The integrated models are further verified by logistic analysis.
Computational intelligence in games

Computational Intelligence and Games is a rather young but fast growing application domain where evolutionary computation is been widely applied. This tutorial aims at giving a brief overview of this area, highlighting the several opportunities for genetic and evolutionary computation methods, and providing some in-depth discussion of specific class of problems where evolutionary computation has proved very successful. The proposed tutorial is related to the Digital Entertainment Technologies and Arts (DETA) track, an attempts to bring together people and concepts from related areas, e.g. music and games, but also visual arts. Connecting these different domains is of growing importance for game production and CI techniques can play an important role here.
Multilevel models for meta-analysis

Meta-analysis can be considered a multilevel statistical problem, since information within studies is combined in the presence of potential heterogeneity between studies. Here a general multilevel model framework is developed for meta-analysis to combine either summary data or individual patient outcome data from each study, and to include either study or individual level covariates that might explain heterogeneity. Classical and Bayesian approaches to estimation are contrasted. These methods are applied to a meta-analysis of trials of thrombolytic therapy after myocardial infarction. Subgroups within the trials were available, categorised by the time delay until treatment, so that a three level random effects model that includes time delay as a covariate is proposed. In addition it was desired to represent the treatment effect as an absolute risk reduction, rather than the conventional odds ratio. We show how this can be achieved within a Bayesian analysis, while still recognising the binary nature of the original outcome data.
FORMLESS: scalable utilization of embedded manycores in streaming applications

Variants of dataflow specification models are widely used to synthesize streaming applications for distributed-memory parallel processors. We argue that current practice of specifying streaming applications using rigid dataflow models, implicitly prohibits a number of platform oriented optimizations and hence limits portability and scalability with respect to number of processors. We motivate Functionally-cOnsistent stRucturally-MalLEabe Streaming Specification, dubbed FORMLESS, which refers to raising the abstraction level beyond fixed-structure dataflow to address its portability and scalability limitations. To demonstrate the potential of the idea, we develop a design space exploration scheme to customize the application specification to better fit the target platform. Experiments with several common streaming case studies demonstrate improved portability and scalability over conventional dataflow specification models, and confirm the effectiveness of our approach.
Tip of the Iceberg: Meaning, Identity, and Literacy in Preteen Virtual Worlds

Every day millions of children ages four to 12 login to shared virtual environments (SVEs) where they play, socialize, create, and explore a digital landscape as avatars, or "virtual characters. " While much of the research and media attention has been focused on adult virtual environments such as Second Life, or massive multiplayer games like World of Warcraft, children's virtual worlds comprise the largest and fastest growing segments of this online genre. Virtual environments are quickly becoming an important aspect of children's out-of-school lives. The challenge for educators is to see how virtual spaces may be leveraged for learning and literacy. This article provides an overview of children's virtual environments and presents a four-part framework for further analyzing these spaces. The author posits that SVEs may be viewed as (1) an identity space; (2) a new "literacy"; (3) a problem-solving context; and (4) an online community. The article concludes by suggesting a research program for the continued exploration of SVEs and the rich array of information practices that surround their use by young people.
EEG Brainwaves Synchronization Comparison between Electrical Engineering and Sports Science Students : Pre and Post Horizontal Motion Intervention

Zunairah Hj. Murat, Mohd Nasir Taib, Zodie Mohamed Hanafiah, Sahrim Lias , Ros Shilawani S. Abdul Kadir, Norlida Buniyamin and Aisah Mohamed 1 1 Fac. of Elec. Eng., Uni. Teknologi. MARA, S.Alam, Malaysia Abstract. The purpose of this research is to compare the brainwave patterns between Electrical Engineering students (EE) and Sport Science students (SS) of Universiti Teknologi MARA using Electroencephalogram (EEG) before and after undergoing five sessions of Horizontal Rotation (HR) procedure. EEG signals were captured from 21 EE, 21 SS participants and the signals were filtered, classified into the four frequency bands, and analyzed using paired T test. It was observed that, before HR, EE had higher brainwave synchronization compared to SS for all frequency bands. However, after 5 sessions of HR, SS had overtake EE in three out of four frequency bands namely for Delta, Alpha and Beta. Furthermore, Both EE and SS showed improvement in brainwave synchronization after HR implying existence of evidence that HR could balance brainwaves.
Coordinated modulation of the fibroblast growth factor dual receptor mechanism during transformation from human colon adenoma to carcinoma

Basic fibroblast growth factor (bFGF) is dependent on heparan sulphate for its ability to activate the cell surface signal transducing receptor. We have investigated the FGF dual receptor mechanism in a novel model of the transformation from human colon adenoma to carcinoma in vitro. Reverse transcription‐polymerase chain reaction showed that mRNA for FGF receptors 1 and 2 were expressed in both the adenoma and carcinoma cells whereas immunocytochemistry showed that the expression of the FGF R1 was reduced significantly in the carcinoma cells. We have reported previously that the composition and sequence of human colon adenoma and carcinoma heparan sulphate (HS) differ in a defined and specific manner. The functional significance of these changes was assessed by affinity co‐electrophoresis, which showed that the affinity of adenoma HS for bFGF was 10‐fold greater than that of the carcinoma HS (Kd 220 nM vs. 2493 nM, respectively). In addition, Northern studies of the expression of syndecan 1 and 4 mRNA showed that proteoglycan core protein expression was reduced significantly in the carcinoma cells. These findings were associated with a reduced biological response to bFGF in the carcinoma cells that could be partially reversed by the addition of exogenous heparin, suggesting that both the proteoglycan and signal transducing receptor control the cells' response to bFGF. Int. J. Cancer 82:298–304, 1999. © 1999 Wiley‐Liss, Inc.
Random-walk based approach to detect clone attacks in wireless sensor networks

Wireless sensor networks (WSNs) deployed in hostile environments are vulnerable to clone attacks. In such attack, an adversary compromises a few nodes, replicates them, and inserts arbitrary number of replicas into the network. Consequently, the adversary can carry out many internal attacks. Previous solutions on detecting clone attacks have several drawbacks. First, some of them require a central control, which introduces several inherent limits. Second, some of them are deterministic and vulnerable to simple witness compromising attacks. Third, in some solutions the adversary can easily learn the critical witness nodes to start smart attacks and protect replicas from being detected. In this paper, we first show that in order to avoid existing drawbacks, replica-detection protocols must be non-deterministic and fully distributed (NDFD), and fulfill three security requirements on witness selection. To our knowledge, only one existing protocol, Randomized Multicast, is NDFD and fulfills the requirements, but it has very high communication overhead. Then, based on random walk, we propose two new NDFD protocols, RAndom WaLk (RAWL) and Table-assisted RAndom WaLk (TRAWL), which fulfill the requirements while having only moderate communication and memory overheads. The random walk strategy outperforms previous strategies because it distributes a core step, the witness selection, to every passed node of random walks, and then the adversary cannot easily find out the critical witness nodes. We theoretically analyze the required number of walk steps for ensuring detection. Our simulation results show that our protocols outperform an existing NDFD protocol with the lowest overheads in witness selection, and TRAWL even has lower memory overhead than that protocol. The communication overheads of our protocols are higher but are affordable considering their security benefits.
Estimating the simulator sickness in immersive virtual reality with optical flow analysis

Recently, Virtual Reality (VR) has shown the ability of providing immersive experience to users and taking them to travel around the virtual environment. Sometimes when traveling in a large-scale virtual environment, the tracking space may not be large enough to fit the virtual environment. Several moving approaches such as virtual jumping and flying are proposed to overcome this limitation. Nevertheless, inappropriate design of moving approaches will cause serious simulator sickness. Intensive visual flow can be one of the major factors that cause the simulator sickness. According to Oculus Best Practices [Oculus 2017], it is necessary to avoid an intensive display of visual flow while developing VR application. There are several researches trying to combat simulator sickness through reducing optical flow. FOV restrictor [Fernandes and Feiner 2016] is one of the successful ways. By decreasing the FOV of the HMD, it can effectively reduce optical flow from peripheral vision and make users feel more comfortable. However, the immersiveness in VR will be declined due to the limited size of FOV.
Work-related crisis exposure : psychological trauma and PTSD in news journalists

I avhandlingen undersoktes hur journalister sjalva reagerar efter att ha arbetat med en plotslig krissituation, samt vilka faktorer som kan bidra till en forhojd risk for allvarliga langsiktiga stressymptom. Temat undersoktes (1) genom att se pa hur journalisters tidigare erfarenheter av krisuppdrag och traumatiska upplevelser i privatlivet var relaterade till stressymptom (posttraumatiskt stressyndrom, sekundar traumatisk stress, depression och utmattningssyndrom), och (2) genom att studera riskfaktorer i en identifierad typ av kris, de finlandska skolskjutningarna 2007-08. Avhandlingens resultat baserades pa enkatsvar fran finlandska nyhetsjournalister (N = 503) och intervjuer med personer som jobbat pa plats vid skolskjutningar (N = 28). En klar majoritet av journalisterna hade inte allvarliga langsiktiga stressymptom vid tiden for undersokningen. De som varit pa ett tidigare krisuppdrag dar man bevittnat manga obehagliga detaljer hade fler allvarliga stressymptom. En annan riskfaktor var att ha ett forflutet med fler traumatiska handelser i privatlivet. Bland de som arbetat med skolskjutningar var starka kortsiktiga reaktioner, t.ex. hjalploshet och chock, relativt vanliga. Reaktionerna horde anda oftast till den normala aterhamtningsprocessen, och ledde inte till en langsiktig forsamring av maendet. Journalister som i hog grad identifierade sig med krisen, t.ex. personer med egna barn, hade storre risk for att drabbas av allvarliga symptom pa lang sikt. Detsamma gallde de som pa plats upplevt journalistiska etiska dilemman, t.ex. att beordras av overordnade till uppdrag som gick emot egna principer. For att forebygga psykisk stress bland journalister ar det viktigt att inom branschen sprida kunskap om stressreaktioner och utveckla rekommendationer for etisk krisjournalistik. Darmed kan journalister fa battre verktyg for att minimera risken att via sitt yrkesutovande orsaka ytterligare skada at krisdrabbade.
Region 8q24 is a susceptibility locus for nonsyndromic oral clefting in Brazil.

BACKGROUND Nonsyndromic cleft lip with or without cleft palate is a relatively common craniofacial defect with multifactorial inheritance. The association of the rs987525 single nucleotide variant, located in a gene desert at 8q24.21 region, has been consistently replicated in European populations. We performed a structured association approach combined with transcriptional analysis of the MYC gene to dissect the role of rs987525 in oral clefting susceptibility in the ethnically admixed Brazilian population. METHODS We performed the association study conditioned on the individual ancestry proportions in a sample of 563 patients and 336 controls, and in an independent sample of 221 patients and 261 controls. The correlation between rs987525 genotypes and MYC transcriptional levels in orbicularis oris muscle mesenchymal stem cells was also investigated in 42 patients and 4 controls. RESULTS We found a significant association in the larger sample (p = 0.0016; OR = 1.80 [95% confidence interval {CI}, 1.21-2.69], for heterozygous genotype, and 2.71 [95% CI, 1.47-4.96] for homozygous genotype). We did not find a significant correlation between rs987525 genotypes and MYC transcriptional levels (p = 0.14; r = -0.22, Spearman Correlation). CONCLUSIONS We present a positive association of rs987525 in the Brazilian population for the first time, and it is likely that the European contribution to our population is driving this association. We also cannot discard a role of rs987515 in MYC regulation, because this locus behaves as an expression quantitative locus of MYC in another tissue.
Further evidence for importance of the subunit combination of silk fibroin in its efficient secretion from the posterior silk gland cells

A locus responsible for the Nd-s mutation of the silkworm, Bombyx mori, has been mapped very close to or within the fibroin light (L) chain gene on the 14th chromosome (Takei, F., K. Kimura, S. Mizuno, T. Yamamoto, and K. Shimura, 1984, Jpn. J. Genet., 59:307-313). A strain of B. mori carrying the homozygous Nd-sD mutation (Nd-sD/Nd-sD; Nd-sD is allelic to Nd-s) secretes less than 0.3% of fibroin into the lumen of the posterior silk gland compared with a strain carrying the homozygous wild-type alleles (+/+). The small amount of fibroin that is secreted in the Nd-sD/Nd-sD strain consists of the heavy (H) chain only and lacks the L chain, although the L chain mRNA and the proteins that are cross-reactable with the anti-L chain serum are present in the posterior silk gland cells. In the hybrid silkworm, Nd-sD/+, the H chain derived from either the Nd-sD or + allele forms disulfide linkage with the L chain derived from the + allele and these fibroins are secreted into the lumen with an equal efficiency, but the L chain derived from the Nd-sD allele remains in the cell unbound to the H chain. Some evidence suggesting structural abnormality of the L chain derived from the Nd-sD allele is presented. These results, together with the previous results on the effect of the H chain gene-linked Nd(2) mutation (Takei, F., F. Oyama, K. Kimura, A. Hyodo, S. Mizuno, and K. Shimura, 1984, J. Cell Biol., 99:2005-2010), strongly suggest that the H-L subunit combination of silk fibroin is important for its efficient secretion.
Individual GP: an Alternative Viewpoint for the Resolution of Complex Problems

An unususal GP implementation is proposed, based on a more "economic" exploitation of the GP algorithm: the "individual" approach, where each individual of the population embodies a single function rather than a set of functions. The final solution is then a set of individuals. Examples are presented where results are obtained more rapidly than with the conventional approach, where all individuals of the final generation but one are discarded.
Simultaneous Localisation and Planning

This paper proposes an algorithm for the solution of the Simultaneous Localisation and Planning problem. The solution is based on statistical inference in a Hidden Markov Model which proceeds in separate phases of localisation and planning. Each requires access to the same contextual model operationalised via the `prior dynamics', and is implemented using forward (localisation) and forward and backward (planning) message passing. I propose that this formalism provides a useful computational-level description of aspects of Hippocampal function.
Computerized electrocardiogram in agoutis (Dasyprocta prymnolopha Wagler, 1831) anesthetized with ketamine and midazolam

An electrocardiogram is a test that assesses heart electrical activity and is applied more frequently in the veterinary care of wild animals. The present study aimed to define the electrocardiogram pattern of agoutis ( Dasyprocta prymnolopha Wagler, 1831) anesthetized with ketamine and midazolam. Eighteen clinically healthy agoutis ( D. prymnolopha ) were used from the Nucleus for Wild Animal Studies and Conservation (NEPAS) of the Federal University of Piaui, Brazil. The animals were chemically restrained with 5% ketamine hydrochloride at a dose of 15mg/kg and midazolam at a dose of 1mg/kg by intramuscular injection. Electrocardiogram tests were carried out by a computerized method with the veterinary electrocardiogram [Acquisition Model for Computer (ECG - PC version Windows 95) Brazilian Electronic Technology (TEB) consisting of an electronic circuit externally connected to a notebook computer with ECGPC-VET (TEB) software installed on the hard disc. In analysing the EKG results, significant differences were observed for QRS complex duration, PR and QT intervals and for R wave millivoltage between the genders; but we observed a significant influence of weight despite the gender. In the present experiment, the anaesthetic protocol was shown to be well tolerated by the agoutis, and no arrhythmias occurred during the time the animals were monitored. The reference values obtained should be used to better understand the cardiac electrophysiology of the species and for its clinical and surgical management.
Hepatitis A vaccine versus immune globulin for postexposure prophylaxis.

BACKGROUND Hepatitis A vaccine administered to persons after exposure to the hepatitis A virus has not been compared directly with immune globulin, which is known to be highly effective in preventing hepatitis A when given within 2 weeks after exposure to the virus. METHODS We randomly assigned household and day-care contacts, 2 to 40 years of age, in Almaty, Kazakhstan, to receive one standard age-appropriate dose of hepatitis A vaccine or immune globulin within 14 days after exposure to patients with hepatitis A. Instances of laboratory-confirmed, symptomatic hepatitis A infection occurring between 15 and 56 days after exposure were then assessed during active follow-up of all susceptible contacts. RESULTS Of 4524 contacts who underwent randomization, 1414 (31%) were susceptible to hepatitis A virus and 1090 were eligible for the per-protocol analysis. Among these contacts, 568 received hepatitis A vaccine and 522 received immune globulin. Most contacts were children (average age, 12 years), and most received prophylaxis during the second week after exposure (average interval after exposure, 10 days). The baseline characteristics of the contacts were similar in the two groups. Symptomatic infection with hepatitis A virus was confirmed in 25 contacts receiving vaccine (4.4%) and in 17 contacts receiving immune globulin (3.3%) (relative risk, 1.35; 95% confidence interval, 0.70 to 2.67). CONCLUSIONS Low rates of hepatitis A in both groups indicate that hepatitis A vaccine and immune globulin provided good protection after exposure. Although the study's prespecified criterion for noninferiority was met, the slightly higher rates of hepatitis A among vaccine recipients may indicate a true modest difference in efficacy and might be clinically meaningful in some settings. Vaccine has other advantages, including long-term protection, and it may be a reasonable alternative to immune globulin for postexposure prophylaxis in many situations. (ClinicalTrials.gov number, NCT00139139 [ClinicalTrials.gov].).
Compressive Sensing for Reducing Feedback in MIMO Broadcast Channels

We propose a generic feedback channel model, and compressive sensing based opportunistic feedback protocol for feedback resource (channels) reduction in MIMO Broadcast Channels under the assumption that both feedback and downlink channels are noisy and undergo block Rayleigh fading. The feedback resources are shared and are opportunistically accessed by users who are strong (users above a certain fixed threshold). Strong users send same feedback information on all shared channels. They are identified by the base station via compressive sensing. The proposed protocol is shown to achieve the same sum-rate throughput as that achieved by dedicated feedback schemes, but with feedback channels growing only logarithmically with number of users.