Miracle-dz/UniFAR-FTUs huggingface dataset:
Nuevas tecnologías y redes sociales en la investigación en Humanidades

Uno de los aspectos más fascinantes de la World Wide Web es que hace el mundo al mismo tiempo asequible e impredecible. En este sentido, los ámbitos de interés y el conocimiento general de las personas han avanzado hacia nuevas expectativas. Este contexto digital ofrece múltiples posibilidades al investigador y a la comunidad científica que estén dispuestos a explorar estas herramientas. El trabajo colaborativo, la extensión de las redes de investigación, la visibilidad y los actuales cauces de comunicación y conversación, son algunas de las ideas que debemos plantearnos y tener presentes en la aplicación de las nuevas tecnologías y de las redes sociales a la investigación en Humanidades. El presente trabajo aporta algunas reflexiones sobre esta cuestión y trata de mostrar formas concretas en las que seguir avanzando a la hora de incorporar las posibilidades que las novedades técnicas nos ofrecen.
KMSGC: A Key Management Scheme for Clustered Wireless Sensor Networks Based on Group-oriented Cryptography

Key establishment in sensor networks is a challenging problem for the constrained energy, memory, and computational capabilities of the sensor nodes. In this paper, focusing on the management of encryption keys in clustered WSNs, We propose a novel distributed key management scheme based on Shamir secret sharing scheme and deployment knowledge(KMSGC). In KMSGC, the sensor nodes are divided into some group, inner group pairwise keys are setup by a group key, and intergroup pairwise keys are established by Shamir secret sharing scheme. We describe the details of our algorithm and compare it with other proposed schemes. Comparison and theory analysis show that the proposed scheme outperforms most of the existing key establishment schemes in terms of wireless sensor networks security and key connectivity.
COMPARING ALTERNATIVE MODELS OF HETEROGENEITY IN CONSUMER CHOICE BEHAVIOR

SUMMARY When modeling demand for differentiated products, it is vital to adequately capture consumer taste heterogeneity, But there is no clearly preferred approach. Here, we compare the performance of six alternative models. Currently, the most popular are mixed logit (MIXL), particularly the version with normal mixing (N-MIXL), and latent class (LC), which assumes discrete consumer types. Recently, several alternative models have been developed. The 'generalized multinomial logit' (G-MNL) extends N-MIXL by allowing for heterogeneity in the logit scale coefficient. Scale heterogeneity logit (S-MNL) is a special case of G-MNL with scale heterogeneity only. The 'mixed-mixed' logit (MM-MNL) assumes a discrete mixture-of-normals heterogeneity distribution. Finally, one can modify N-MIXL by imposing theoretical sign constraints on vertical attributes. We call this 'T-MIXL'. We find that none of these models dominates the others, but G-MNL, MM-MNL and T-MIXL typically outperform the popular N-MIXL and LC models. Copyright © 2012 John Wiley & Sons, Ltd.
A survey on medical digital imaging of endoscopic gastritis

This paper focuses on researches related to medical digital imaging of endoscopic gastritis. It provides suffice information on endoscopic procedure and types of gastritis. Besides that, it also briefly addressed feature extraction methods. Feature selection and Multiple Instance Learning (MIL) concept are also reviewed. As a conclusion, this paper become a basis to propose an improved artificial intelligence algorithm to perform endoscopic gastritis diagnosis.
Dissipative particle dynamics simulations for biological tissues: rheology and competition

In this work, we model biological tissues using a simple, mechanistic simulation based on dissipative particle dynamics. We investigate the continuum behavior of the simulated tissue and determine its dependence on the properties of the individual cell. Cells in our simulation adhere to each other, expand in volume, divide after reaching a specific size checkpoint and undergo apoptosis at a constant rate, leading to a steady-state homeostatic pressure in the tissue. We measure the dependence of the homeostatic state on the microscopic parameters of our model and show that homeostatic pressure, rather than the unconfined rate of cell division, determines the outcome of tissue competitions. Simulated cell aggregates are cohesive and round up due to the effect of tissue surface tension, which we measure for different tissues. Furthermore, mixtures of different cells unmix according to their adhesive properties. Using a variety of shear and creep simulations, we study tissue rheology by measuring yield stresses, shear viscosities, complex viscosities as well as the loss tangents as a function of model parameters. We find that cell division and apoptosis lead to a vanishing yield stress and fluid-like tissues. The effects of different adhesion strengths and levels of noise on the rheology of the tissue are also measured. In addition, we find that the level of cell division and apoptosis drives the diffusion of cells in the tissue. Finally, we present a method for measuring the compressibility of the tissue and its response to external stress via cell division and apoptosis.
Lower power data transport protection for Internet of Things (IoT)

The concerns over IoT (Internet of Things) data transport security impede the development of smart service. The current data are transported mainly in clear text with a lack of privacy protection. IoT equipment resources are limited, thus complex encryption and decryption are not applicable. Google disclosed a Randomized Aggregatable Privacy-Preserving Ordinal Response (RAPPOR) algorithm that provides strong privacy guarantees for data transport, which has been efficiently implemented in Chrome for privacy protection of anonymous reporting. However, the data restoration rate is still subject to 1 to 5% confidence error. In this study we improved the Randomized Response process and proposed a Time Based Dynamic Response method. Experimental results demonstrate that the data transport error rate can be reduced to 0% in a limited range. Moreover, the computational operations can save more than 90% of time cost as compared to the common encryption and decryption techniques (such as AES), which is suitable for the applications in data transport protection between lower-power lightweight IoT devices.
Robust discrete decentralized model-reference adaptive control

In this paper we examine the stability (boundedness) properties of a discrete model-reference adaptive operating in a decentralized system. In common with the continuous time case first examined by Ioannou & Kokotovic [1], we find that a modification is also required to ensure the boundedness property in the discrete case. The correspondence between the MRAC and STR approaches is readily apparent in discrete time and we examine this aspect with regard to the modification required for the MRAC algorithm. An application example of the practical efficacy of this algorithm is given through an implementation on a third-order hydraulic actuator.
Identification of the 10Sa RNA structural gene of Mycobacterium tuberculosis

In the course of screening a gene bank of Mycobacterium tuberculosis (1) with cDNA to RNA from M.tuberculosis, we have isolated a clone, pAK51, which contains significant sequence homology with Alcaligenes eutrophus lOSa RNA (57% identity) and Escherichia coli lOSa RNA (54% identity). The lOSa RNA has been described as a stable RNA (2, 3). The conservation of primary sequences does not end at the 3' end of the mature lOSa RNA but extends further downstream. The lOSa structural RNA gene is located within a 1 kb Pstl genomic fragment of DNA from M. tuberculosis H37Rv and M. tuberculosis H37Ra (Figure 1A). When total RNA isolated from M. tuberculosis H37Rv and M.tuberculosis H37Ra was probed with the putative lOSa RNAcoding region from pAK51, hybridization was obtained with RNA approximately 390—400 bases in length (Figure IB). Interestingly, the sequence located in the 3' terminal of lOSa RNA showed strong homology (4) with the pseudouridine arm of tRNA genes from several organisms (Figure 2).
Association Rule Pruning based on Interestingness Measures with Clustering

Association rule mining plays vital part in knowledge mining. The difficult task is discovering knowledge or useful rules from the large number of rules generated for reduced support. For pruning or grouping rules, several techniques are used such as rule structure cover methods, informative cover methods, rule clustering, etc. Another way of selecting association rules is based on interestingness measures such as support, confidence, correlation, and so on. In this paper, we study how rule clusters of the pattern Xi ∆ Y are distributed over different interestingness measures.
Truffle biogeography—A case study revealing ecological niche separation of different Tuber species

Abstract Ecology of hypogeic mycorrhizal fungi, such as truffles, remains largely unknown, both in terms of their geographical distribution and their environmental niches. Occurrence of true truffles (Tuber spp.) was therefore screened using specific polymerase chain reaction (PCR) assays and subsequent PCR amplicon sequencing in tree roots collected at 322 field sites across the Czech Republic. These sites spanned a wide range of climatic and soil conditions. The sampling was a priori restricted to areas thought to be suitable for Tuber spp. inasmuch as they were characterized by weakly acidic to alkaline soils, warmer climate, and with tree species previously known to host true truffles. Eight operational taxonomic units (OTUs) corresponding to Tuber aestivum, T. borchii, T. foetidum, T. rufum, T. indicum, T. huidongense, T. dryophilum, and T. oligospermum were detected. Among these, T. borchii was the OTU encountered most frequently. It was detected at nearly 19% of the sites. Soil pH was the most important predictor of Tuber spp. distribution. Tuber borchii preferred weakly acidic soils, T. foetidum and T. rufum were most abundant in neutral soils, and T. huidongense was restricted to alkaline soils. Distribution of T. aestivum was mainly dictated by climate, with its range restricted to the warmest sites. Host preferences of the individual Tuber spp. were weak compared to soil and climatic predictors, with the notable exception that T. foetidum appeared to avoid oak trees. Our results open the way to better understanding truffle ecology and, through this new knowledge, also to better‐informed trufficulture.
Role of Glia in Orofacial Pain

Several acute and chronic pain conditions in the face or mouth are very common, and some are unique to the orofacial region. However, the etiology and pathogenesis of most orofacial chronic pain conditions are unresolved, and they are difficult to diagnose and manage. This article provides a brief overview of the neural mechanisms underlying orofacial pain and then highlights recent findings indicating that nonneural cells, specifically satellite cells in the sensory ganglia and astroglia and microglia cells in the central nervous system, are important players in both acute and chronic inflammatory and neuropathic orofacial pain conditions and may offer new targets for management of these conditions.
The Nucleus Accumbens and Pavlovian Reward Learning

The ability to form associations between predictive environmental events and rewarding outcomes is a fundamental aspect of learned behavior. This apparently simple ability likely requires complex neural processing evolved to identify, seek, and use natural rewards and redirect these activities based on updated sensory information. Emerging evidence from both animal and human research suggests that this type of processing is mediated in part by the nucleus accumbens (NAc) and a closely associated network of brain structures. The NAc is required for a number of reward-related behaviors and processes specific information about reward availability, value, and context. In addition, this structure is critical for the acquisition and expression of most Pavlovian stimulus-reward relationships, and cues that predict rewards produce robust changes in neural activity in the NAc. Although processing within the NAc may enable or promote Pavlovian reward learning in natural situations, it has also been implicated in aspects of human drug addiction, including the ability of drug-paired cues to control behavior. This article provides a critical review of the existing animal and human literature concerning the role of the NAc in Pavlovian learning with nondrug rewards and considers some clinical ture concerning the role of the NAc in Pavlovian learning with nondrug implications of these findings. NEUROSCIENTIST 13(2):148—159, 2007.
Compact dual-fed slotted circular polarization antenna with reflector for RF energy harvesting

A compact dual-fed circular polarization (CP) antenna array with reflector is designed for radio frequency (RF) energy harvesting system. The antenna composed four patches with dual slots are placed underneath of radiating patches to reduce the antenna's sizes while the reflector is use to reflect the back radiation as well increase the gain. A narrow bandwidth (2.47 GHz - 2.53 GHz) with good axial ratio (AR) bandwidth (2.47 GHz - 2.49 GHz) and gain of 6.73 dB is presented. This antenna is suitable for application of WiMAX and rectenna for energy harvesting system.
Extracellular matrix fibronectin initiates endothelium‐dependent arteriolar dilatation via the heparin‐binding, matricryptic RWRPK sequence of the first type III repeat of fibrillar fibronectin

The local arteriolar dilatation produced by contraction of skeletal muscle is dependent upon multiple signalling mechanisms. In addition to the many metabolic signals that mediate this vasodilatation, we show here that the extracellular matrix protein fibronectin also contributes to the response. This vasodilatory signal requires the heparin‐binding matricryptic RWRPK sequence in the first type III repeat of fibrillar fibronectin. The fibronectin‐dependent component of the integrated muscle contraction‐dependent arteriolar vasodilatation is coupled through an endothelial cell‐dependent signalling pathway.
Cryptanalysis of Haraka

In this paper, we describe attacks on the recently proposed Haraka hash functions. First, for the two hash functions Haraka-256/256 and Haraka-512/256 in the family, we show how two colliding messages can be constructed in about 2 16 function evaluations. Second, we invalidate the preimage security claim for Haraka-512/256 with an attack finding one preimage in about 2 192 function evaluations. These attacks are possible thanks to symmetries in the internal state that are preserved over several rounds.
Regulation of isopropylmalate isomerase synthesis in Neurospora crassa

The capacity to synthetize isopropylmalate isomerase (EC 4.2.1.33) by Neurospora crassa increased during induction in the presence of cycloheximide but was inhibited by proflavine and other inhibitors of RNA synthesis. Turnover of the enzyme once formed appeared negligible, but the message (measured as enzyme-forming capacity) had a half-life of 4 to 8 min. A comparison of the kinetics of induction in the wild type and a newly isolated alpha-isopropylmalate-permeable strain suggested strongly that feedback control by leucine of alpha-isopropylmalate production can adequately serve as the primary physiological regulator of endogenous inducer concentration. Genetic data are presented which implicate the involvement of two unlinked genes, ipm-1 and ipm-2, in determining permeation of alpha-isopropylmalate.
XY chromosomal bivalent: Nucleolar attraction

Nucleolar organization by autosomal bivalents occurs during male meiotic prophase in mammalian species. During late leptotene–early zygotene stages, several autosomal bivalents are engaged in ribosomal RNA synthesis. At pachytene stage, nucleolar masses detach from the sites of primary autosomal origin, relocate close to the XY chromosomal pair, and nucleolar components become segregated. In early pachytene, an extensive synaptonemal complex at the pseudoautosomal region, links X and Y chromosomes in close juxtaposition along most of the length of the Y chromosome, except for a terminal region of the Y that diverges from the pairing region. As meiotic prophase advances, X and Y chromosomes progressively desynapse and, at diplotene, the XY pair is associated end‐to‐end. Xmr (Xlr‐related, meiosis regulated) is a protein component of the nucleolus associated to the XY pair and of the asynapsed portions of the X and Y axial cores. Xmr, like SCP3, is a component of the lateral element of the synaptonemal complex. Both share structural homology in their C‐terminal region. This region contains several putative coiled‐coil domains known to mediate heterodimeric protein–protein interactions and to provide binding sites to regulatory proteins. Like Xmr, the tumor repressor protein BRCA1 is present along the unsynapsed cores of the XY bivalent. Both Xmr and BRCA1 have been implicated in a mechanism leading to chromatin condensation and transcription inactivation of the XY bivalent. The BRCA1‐ATR kinase complex, as recent research suggests, triggers the phosphorylation of histone H2AX, which predominates in the condensed chromatin of the XY chromosomal pair. Xmr is not present in the XY bivalent when the expression of histone H2AX is deficient. The role of Xmr in chromatin condensation of the XY bivalent has not been determined. The partial structural homology of SCP3 and Xmr, their distribution along the unsynapsed axial cores of the X and Y chromosomes, and the presence of Xmr in the XY pair‐associated nucleolus raises the possibility that Xmr, and other proteins including protein kinases, may be recruited to the nucleolus to perform functions related to chromosomal synapsis, chromatin condensation and recombination processes, as well as cell cycle progression. Mol. Reprod. Dev. © 2005 Wiley‐Liss, Inc.
Swift Birth and Quick Death: Enabling Fast Parallel Guest Boot and Destruction in the Xen Hypervisor

The ability to quickly set up and tear down a virtual machine is critical for today's cloud elasticity, as well as in numerous other scenarios: guest migration/consolidation, event-driven invocation of micro-services, dynamically adaptive unikernel-based applications, micro-reboots for security or stability, etc. In this paper, we focus on the process of setting up/freeing the hypervisor and host control layer data structures at boot/destruction time, showing that it does not scale in current virtualization solutions. In addition to the direct overhead of long VM set-up/destruction times, we demonstrate by experimentation the indirect costs on real world auto scaling systems. Focusing on the popular Xen hypervisor, we identify three critical issues hindering the scalability of the boot and destruction processes: serialized boot, unscalable interactions with the Xenstore at guest creation time, and remote NUMA memory scrubbing at destruction time. For each of these issues we present the design and implementation of a solution in the Xen infrastructure: parallel boot with fine-grained locking, caching of Xenstore data, and local NUMA scrubbing. We evaluate these solutions using micro-benchmarks, macro-benchmarks, and real world datacenter traces. Results show that our work improves the current Xen implementation by a significant factor, for example macro-benchmarks indicate a speedup of more than 4X in high-load scenarios.
A Comprehensive Study of the Epidemiological Pattern of Malaria

Background and objectives: Malaria is one of the leading causes of morbidity and mortality in tropical countries. The objectives of the study are(1) to study epidemiological pattern of malaria. (2) to emphasis the accurate diagnosis or species identification of mixed-species malaria and consequences of underreporting of the same (3)to report a rare case of congenital malaria. Methods: The laboratory records of cases having malarial parasites positive in peripheral blood smear of year 2014 were analyzed retrospectively for epidemiological data. Results: Total 75 cases were studied, which shows maximum cases affected between 16-30 yrs age group, with male predominance.12% cases showed mixed malarial parasites infection. One case of Congenital malaria was reported in our study. Conclusions: Young adults are the most commonly affected age group for malaria. Mixed-malarial (falciparum and vivax) infections very often go unrecognized, or are often under reported, with a tendency to over report the more dangerous P. falciparum.
Previsão eleitoral para a Assembleia da República Portuguesa

Em trabalho anterior utilizaram-se tecnicas de Data Mining para predizer resultados eleitorais, sem utilizar sondagens, recorrendo a variaveis socioeconomicas, disponiveis publicamente sobre Portugal, no periodo abrangido pelas treze eleicoes para a Assembleia da Republica, entre 1974 e 2009. No entanto, o espectro politico considerado nesse trabalho nao abrange os 100% dos votos expressos, mas apenas os quatro partidos com assento parlamentar regular desde 1975 cuja votacao atinge cerca de 84%. Na abordagem anteriormente adoptada, cada um dos quatro partidos tradicionais foi tratado separadamente, resultando em previsoes independentes. Neste artigo analisa-se a extensao desse trabalho a previsao do intervalo restante dos resultados eleitorais e a sua utilizacao para garantir a restricao de que a percentagem total de votos expressos soma 100%. Os resultados mostraram que os metodos anteriormente aplicados permitem obter previsoes com resultados de qualidade similar para o conjunto das forcas partidarias complementares.
TRPV1 Deletion Enhances Local Inflammation and Accelerates the Onset of Systemic Inflammatory Response Syndrome

The transient receptor potential vanilloid 1 (TRPV1) is primarily localized to sensory nerve fibers and is associated with the stimulation of pain and inflammation. TRPV1 knockout (TRPV1KO) mice show enhanced LPS-induced sepsis compared with wild type (WT). This implies that TRPV1 may have a key modulatory role in increasing the beneficial and reducing the harmful components in sepsis. We investigated immune and inflammatory mechanisms in a cecal ligation and puncture (CLP) model of sepsis over 24 h. CLP TRPV1KO mice exhibited significant hypothermia, hypotension, and organ dysfunction compared with CLP WT mice. Analysis of the inflammatory responses at the site of initial infection (peritoneal cavity) revealed that CLP TRPV1KO mice exhibited: 1) decreased mononuclear cell integrity associated with apoptosis, 2) decreased macrophage tachykinin NK1-dependent phagocytosis, 3) substantially decreased levels of nitrite (indicative of NO) and reactive oxygen species, 4) increased cytokine levels, and 5) decreased bacteria clearance when compared with CLP WT mice. Therefore, TRPV1 deletion is associated with impaired macrophage-associated defense mechanisms. Thus, TRPV1 acts to protect against the damaging impact of sepsis and may influence the transition from local to a systemic inflammatory state.