Miracle-dz/UniFAR-FTUs huggingface dataset:
MAC-aware routing in wireless sensor networks

Generally, the traditional layered protocol architecture is used to design protocols for wireless sensor networks in which MAC and Routing protocols act independently and this may cause counteraction between them. Cross-layer protocols are known to be more efficient. In this paper, we present MAR-WSN, a MAC-aware Routing protocol for Wireless Sensor Networks, in which the next hop decisions are made based on the TDMA scheduling and the two-hop neighbourhood knowledge. Coherent decisions in space, taken by the routing protocol, with those taken by the MAC protocol, in time, prove to be efficient against several metrics: delay, energy consumption and hop number. The simulation results show good performance of our strategy in medium and high density networks compared to the state of the art.
A neuronal network model for context-dependence of pitch change perception

Many natural stimuli have perceptual ambiguities that can be cognitively resolved by the surrounding context. In audition, preceding context can bias the perception of speech and non-speech stimuli. Here, we develop a neuronal network model that can account for how context affects the perception of pitch change between a pair of successive complex tones. We focus especially on an ambiguous comparison—listeners experience opposite percepts (either ascending or descending) for an ambiguous tone pair depending on the spectral location of preceding context tones. We developed a recurrent, firing-rate network model, which detects frequency-change-direction of successively played stimuli and successfully accounts for the context-dependent perception demonstrated in behavioral experiments. The model consists of two tonotopically organized, excitatory populations, Eup and Edown, that respond preferentially to ascending or descending stimuli in pitch, respectively. These preferences are generated by an inhibitory population that provides inhibition asymmetric in frequency to the two populations; context dependence arises from slow facilitation of inhibition. We show that contextual influence depends on the spectral distribution of preceding tones and the tuning width of inhibitory neurons. Further, we demonstrate, using phase-space analysis, how the facilitated inhibition from previous stimuli and the waning inhibition from the just-preceding tone shape the competition between the Eup and Edown populations. In sum, our model accounts for contextual influences on the pitch change perception of an ambiguous tone pair by introducing a novel decoding strategy based on direction-selective units. The model's network architecture and slow facilitating inhibition emerge as predictions of neuronal mechanisms for these perceptual dynamics. Since the model structure does not depend on the specific stimuli, we show that it generalizes to other contextual effects and stimulus types.
Probabilistic Entity-Relationship Models, PRMs, and Plate Models

We introduce a graphical language for re- lational data called the probabilistic entity- relationship (PER) model. The model is an extension of the entity-relationship model, a common model for the abstract repre- sentation of database structure. We con- centrate on the directed version of this model—the directed acyclic probabilistic entity-relationship (DAPER) model. The DAPER model is closely related to the plate model and the probabilistic relational model (PRM), existing models for relational data. The DAPER model is more expressive than either existing model, and also helps to demonstrate their similarity. dinary graphical models (e.g., directed-acyclic graphs and undirected graphs) are to flat data. In this paper, we introduce a new graphical model for relational data—the probabilistic entity-relationship (PER) model. This model class is more expressive than either PRMs or plate models. We concentrate on a particular type of PER model—the directed acyclic probabilistic entity-relationship (DAPER) model—in which all probabilistic arcs are directed. It is this ver- sion of PER model that is most similar to the plate model and PRM. We define new versions of the plate model and PRM such their expressiveness is equivalent to the DAPER model, and then (in the expanded tech report, Heckerman, Meek, and Koller, 2004) compare the new and old definitions. Consequently, we both demonstrate the similarity among the original lan- guages as well as enhance their abilities to express con- ditional independence in relational data. Our hope is that this demonstration of similarity will foster greater communication and collaboration among statisticians who mostly use plate models and computer scientists who mostly use PRMs. We in fact began this work with an effort to unify traditional PRMs and plate models. In the process, we discovered that it was important to make both entities and relationships (concepts discussed in de- tail in the next section) first class objects in the lan- guage. We in turn discovered an existing language that does this—the entity-relationship (ER) model—a commonly used model for the abstract representation of database structure. We then extended this language to handle probabilistic relationships, creating the PER model. We should emphasize that the languages we discuss are neither meant to serve as a database schema nor meant to be built on top of one. In practice, database schemas are built up over a long period of time as the needs of the database consumers change. Conse-
Angiopoietin-1 Treatment Reduces Inflammation but Does Not Prevent Ventilator-Induced Lung Injury

Background Loss of integrity of the epithelial and endothelial barriers is thought to be a prominent feature of ventilator-induced lung injury (VILI). Based on its function in vascular integrity, we hypothesize that the angiopoietin (Ang)-Tie2 system plays a role in the development of VILI. The present study was designed to examine the effects of mechanical ventilation on the Ang-Tie2 system in lung tissue. Moreover, we evaluated whether treatment with Ang-1, a Tie2 receptor agonist, protects against inflammation, vascular leakage and impaired gas exchange induced by mechanical ventilation. Methods Mice were anesthetized, tracheotomized and mechanically ventilated for 5 hours with either an inspiratory pressure of 10 cmH2O (‘low’ tidal volume ∼7.5 ml/kg; LVT) or 18 cmH2O (‘high’ tidal volume ∼15 ml/kg; HVT). At initiation of HVT-ventilation, recombinant human Ang-1 was intravenously administered (1 or 4 µg per animal). Non-ventilated mice served as controls. Results HVT-ventilation influenced the Ang-Tie2 system in lungs of healthy mice since Ang-1, Ang-2 and Tie2 mRNA were decreased. Treatment with Ang-1 increased Akt-phosphorylation indicating Tie2 signaling. Ang-1 treatment reduced infiltration of granulocytes and expression of keratinocyte-derived chemokine (KC), macrophage inflammatory protein (MIP)-2, monocyte chemotactic protein (MCP)-1 and interleukin (IL)-1β caused by HVT-ventilation. Importantly, Ang-1 treatment did not prevent vascular leakage and impaired gas exchange in HVT-ventilated mice despite inhibition of inflammation, vascular endothelial growth factor (VEGF) and Ang-2 expression. Conclusions Ang-1 treatment downregulates pulmonary inflammation, VEGF and Ang-2 expression but does not protect against vascular leakage and impaired gas exchange induced by HVT-ventilation.
Association between Virulence Factors and TRAF1/4-1BB/Bcl-xL Expression in Gastric Mucosa Infected with Helicobacter pylori

Objective. CagA+/vacAs1+/vacAm1+ Helicobacter pylori upregulates the expression of tumor necrosis factor receptor–associated factor 1 (TRAF1), tumor necrosis factor receptor superfamily member 9 (4-1BB), and B-cell lymphoma-extra large (Bcl-xL) in human gastric epithelial cells. We investigated the correlation between cagA/vacAs1/vacAm1 and TRAF1/4-1BB/Bcl-xL expression in gastric mucosal tissue of patients with gastric disorders. Methods. We collected gastric mucosa samples from 35 chronic, nonatrophic gastritis (CG) patients, 41 atrophic gastritis patients, 44 intestinal metaplasia with atypical hyperplasia (IM) patients, and 28 gastric carcinoma (Ca) patients. The expression of TRAF1, 4-1BB, and Bcl-xL was determined using western blotting. The expression of cagA, vacAs1, and vacAm1 in H. pylori was examined with polymerase chain reaction. Results. The expression of TRAF1, 4-1BB, and Bcl-xL was significantly upregulated in IM and Ca patients (P < 0.05 compared with CG). There were more cases of cagA+/vacAs1+/vacAm1+ H. pylori infection in samples with elevated TRAF1, 4-1BB, or Bcl-xL expression (P < 0.05). Additionally, there were a remarkably large number of samples with upregulated TRAF1/4-1BB/Bcl-xL expression in cases of cagA+/vacAs1+/vacAm1+ H. pylori infection (44 cases, 67.7%; P < 0.05). Conclusions. The pathogenesis of IM and Ca may be promoted by cagA+/vacAs1+/vacAm1+ H. pylori, possibly via upregulated TRAF1, 4-1BB, and Bcl-xL in gastric mucosal tissue.
Continuum and CO/HCO+ Emission from the Disk Around the T Tauri Star LkCa 15

We present Owens Valley Radio Observatory Millimeter Array λ = 3.4-1.2 mm dust continuum and spectral line observations of the accretion disk encircling the T Tauri star LkCa 15. The 1.2 mm dust continuum emission is resolved and gives a minimum diameter of 190 AU and an inclination angle of 57° ± 5°. There is a noticeable but, at present, poorly constrained decrease in the continuum spectral slope with frequency that may result from the coupled processes of grain growth and dust settling. Imaging of the fairly intense emission from the lowest rotational transitions of CO, 13CO, and HCO+ reveals a rotating disk substantially larger than that observed in the dust continuum. Emission extends to ~750 AU and the characteristic radius of the disk is determined to be ~425 AU (HWHM), based on model fits to the CO velocity field. The measured line ratios demonstrate that the emission from these species is optically thick, while that from C18O and H13CO+ is optically thin, or nearly so. The disk mass derived from the CO isotopologues with typical dense cloud abundances is still nearly 2 orders of magnitude less than that inferred from the dust emission, the most probable explanation being extensive molecular depletion in the cold, dense disk midplane. Thus, while CO, HCO+, and their isotopologues are excellent tracers of the disk velocity field, they are not reliable tracers of the disk mass. N2H+ 1 → 0 emission has also been detected which, along with HCO+, sets a lower limit to the fractional ionization of 10-8 in the near-surface regions of protoplanetary disks. This first detection of N2H+ in circumstellar disks has also made possible a determination of the N2/CO ratio (~2) that is at least an order of magnitude larger than those in the envelopes of young stellar objects and dense clouds. The large N2/CO ratio indicates that our observations probe disk layers in which CO is depleted but some N2 remains in the gas phase. Such differential depletion can lead to large variations in the fractional ionization with height in the outer reaches of circumstellar disks and may help to explain the relative nitrogen deficiency observed in comets.
AIDS mortality in African migrants living in Portugal: evidence of large social inequalities

Objective: To examine infectious disease and AIDS mortality among African migrants in Portugal, gender and socio-economic differences in AIDS mortality risk, and differences between African migrants to Portugal and to England and Wales. Methods: Data from death registrations, 1998–2002, and the 2001 Census were used to derive standardised death rates by country of birth, occupational class (men only), and marital status. Results: Compared with people born in Portugal, African migrants had higher mortality for infectious diseases including AIDS. There was considerable heterogeneity among Africans, with those from Cape Verde having the highest mortality. Death rates were more than five times higher among those who were unmarried than those who were. A larger proportion of Africans were unmarried accounting for some excess mortality. Death rates were also higher among men from manual occupational classes than among men from non-manual. A comparison with England and Wales shows that death rates for infectious disease and AIDS in Portugal are much higher and Africans in Portugal also fare worse than Africans in England and Wales. Conclusion: AIDS mortality rates were higher among Africans than those born in Portugal and were associated with socio-environmental factors. Further research is required to interpret the excess mortality among Africans and there is a need to ensure the inclusion of relevant data items on ethnicity in national monitoring and surveillance systems.
Rendering and Affect

Previous studies at the intersection between rendering and psychology have concentrated on issues such as realismand acuity. Although such results have been useful in informing development of realistic rendering techniques,studies have shown that the interpretation of images is influenced by factors that have little to do with realism. Inthis paper, we summarize a series of experiments, the most recent of which are reported in a separate paper, thatinvestigate affective (emotive) qualities of images. These demonstrate significant effects that can be utilized withininteractive graphics, particularly via non‐photorealistic rendering (NPR). We explain how the interpretation ofthese results requires a high‐level model of cognitive information processing, and use such a model to account forrecent empirical results on rendering and judgement.
Reasons of Preservice Teachers Attending the Pedagogical Formation Certificate Program for Choosing Teaching as a Profession

Sosyal, ekonomik ve kulturel sebeplerle ogretmen adaylarinin ogretmenlik meslegini tercih nedenleri ulkeden ulkeye farklilik gostermektedir. Bu arastirmanin amaci pedagojik formasyon ogrencilerinin, ogretmenlik meslegine yonelik tercihlerini etkileyen faktorleri belirlemektir. Calismanin katilimcilarini 2016-2017 egitim-ogretim yili bahar doneminde, pedagojik formasyon sertifika programina katilan ogrenciler arasindan tesadufi olarak secilen 230 gonullu ogretmen adayi olusturmaktadir. Pedagojik formasyon ogrencilerinin ogretmenligi tercih etmelerine yonelik motivasyon ve algilama duzeyleri Yapisal Esitlik Modellemesi (YEM) ile tespit edilmistir. Elde edilen modelin iyi uyum idenkslerine sahip oldugu gorulurken, YEM’e gore ogretmen adaylari cocuklarla/ ergenlerle calismak istemeleri ve isin guvenli olmasi yonunden daha cok onemserken; ogretmenligin transfer edilmesi ve aileye ayrilan zamanin kullanimi yonunden daha az onemsemektedir. Ayrica ogretmenligi secmelerine yonelik daha yuksek memnuniyet algisina sahip olduklari gorulurken; cevrelerindeki goruslerden daha az etkilendikleri anlasilmaktadir.
Digital Methods

In Digital Methods, Richard Rogers proposes a methodological outlook for social and cultural scholarly research on the Web that seeks to move Internet research beyond the study of online culture. It is not a toolkit for Internet research, or operating instructions for a software package; it deals with broader questions. How can we study social media to learn something about society rather than about social media use? How can hyperlinks reveal not just the value of a Web site but the politics of association? Rogers proposes repurposing Web-native techniques for research into cultural change and societal conditions. We can learn to reapply such "methods of the medium" as crawling and crowd sourcing, PageRank and similar algorithms, tag clouds and other visualizations; we can learn how they handle hits, likes, tags, date stamps, and other Web-native objects. By "thinking along" with devices and the objects they handle, digital research methods can follow the evolving methods of the medium. Rogers uses this new methodological outlook to examine the findings of inquiries into 9/11 search results, the recognition of climate change skeptics by climate-change-related Web sites, the events surrounding the Srebrenica massacre according to Dutch, Serbian, Bosnian, and Croatian Wikipedias, presidential candidates' social media "friends," and the censorship of the Iranian Web. With Digital Methods, Rogers introduces a new vision and method for Internet research and at the same time applies them to the Web's objects of study, from tiny particles (hyperlinks) to large masses (social media).
Emotional recognition in autism spectrum conditions from voices and faces

The present study reports on a new vocal emotion recognition task and assesses whether people with autism spectrum conditions (ASC) perform differently from typically developed individuals on tests of emotional identification from both the face and the voice. The new test of vocal emotion contained trials in which the vocal emotion of the sentence were congruent, incongruent, or neutral with respect to the semantic content. We also included a condition in which there was no semantic content (an ‘mmm’ was uttered using an emotional tone). Performance was compared between 11 adults with ASC and 14 typically developed adults. Identification of emotion from sentences in which the vocal emotion and the meaning of sentence were congruent was similar in people with ASC and a typically developed comparison group. However, the comparison group was more accurate at identifying the emotion in the voice from incongruent and neutral trials, and also from trials with no semantic content. The results of the vocal emotion task were correlated with performance on a face emotion recognition task. In decoding emotion from spoken utterances, individuals with ASC relied more on verbal semantics than did typically developed individuals, presumably as a strategy to compensate for their difficulties in using prosodic cues to recognize emotions.
The Influence of Ethical Orientation, Gender, and Religiosity on Ethical Judgment Accounting Students

This study aims to determine the effect Ethical orientation, Gender and Religiosity on Ethical JudgementAccounting Students. This research is a causative research. The population was Accounting students at Economic Faculty Universitas Negeri PAdang . There were 92 respondents in this study. The research data was obtained through questionnaires. Data was analyzed by using double regression analysis. The results of this study are: (1) Ethical orientation idealism has significant positive effect on ethical judgment, but relativism has no significant effect on ethical judgemnet. This study failed to prove Gender and religiosity has no significant effect on ethical judgement.
International Pricing of Emerging Market Corporate Debt: Does the Corporate Matter?

We examine risk spreads charged on corporate bonds placed by emerging market borrowers on international exchanges. While global developments have an important effect on spreads, changes in firm-level default risk also matter significantly in a way consistent with theory and experience in mature markets. In contrast, except during periods of financial crisis, country factors play a limited role. These findings go against the supposition that limited information on emerging market firms or significant agency problems prevent firm-level credit discrimination by international investors. The firm-level information capitalization into spreads possibly reflects protection afforded by the exchange listing on international markets.
Into the unknown: Treatment as a social arena for drug users’ transition into a non-using life

Background and aims: For people trying to stop using alcohol or other drugs (AOD), the process is often characterised by periods of abstinence followed by relapse into their previous drug-related way of life and subsequent re-entry into the treatment system. There is a call for greater attention to the how of these transitions, with a special focus on the phase of leaving treatment. The aim of this article was to get a better understanding of the transformation of practice when moving from a drug-using to a non-using lifestyle by exploring the experience of (1) the involvement in treatment settings, (2) the process of leaving treatment, and finally, (3) the early phase of changing everyday practice into a drug-free way of living. Method: The article takes on a social practice approach, in particular Bourdieu’s concepts of habitus, “doxa” and field to analyse 17 in-depth interviews with Norwegian men and women seeking treatment for problems resulting from the use of drugs and/or alcohol. Results: The study shows that the support of professionals operates as transitional relations that can bridge the transformation from a drug-using to a drug-free life, by providing a social web of relations, positions, settings and activities. However, leaving treatment and establishing AOD-free practice involves moving into something unknown in the sense that there is no embodied, taken-for-granted knowledge about how to relate to a world where drug use is not the focal point of existence. Conclusions: The process of change, then, involves being exposed to an existential feeling of maladjustment. To get beyond the feeling of maladjustment, and get into the doxic mode takes time, and involves reconfiguration of habitus through reorientation of social settings, relations and networks. The treatment system could potentially develop a continuum of support during these transformations.
Free Vibration Analysis of a Nonlinear Beam Using Homotopy and Modified Lindstedt-Poincare Methods

In this paper, homotopy perturbation and modified Lindstedt-Poincare methods are employed for nonlinear free vibrational analysis of simply supported and double-clamped beams subjected to axial loads. Mid-plane stretching effect has also been accounted in the model. Galerkin's decomposition technique is implemented to convert the dimensionless equation of the motion to nonlinear ordinary differential equation. Homotopy and modified Lindstedt-Poincare (HPM) are applied to find analytic expressions for nonlinear natural frequencies of the beams. Effects of design parameters such as axial load and slenderness ratio are investigated. The analytic expressions are valid for a wide range of vibration amplitudes. Comparing the semi-analytic solutions with numerical results, presented in the literature, indicates good agreement. The results signify the fact that HPM is a powerful tool for analyzing dynamic and vibrational behavior of structures analytically. © 2009 IAU, Arak Branch. All rights reserved.
A Family of M theory flows with four supersymmetries

We use the techniques of "algebraic Killing spinors" to obtain a family of holographic flow solutions with four supersymmetries in M-theory. The family of supersymmetric backgrounds constructed here includes the non-trivial flow to the (2+1)-dimensional analog of the Leigh-Strassler fixed point as well as generalizations that involve the M2-branes spreading in a radially symmetric fashion on the Coulomb branch of this non-trivial fixed point theory. In spreading out, these M2-branes also appear to undergo dielectric polarization into M5-branes. Our results naturally extend the earlier applications of the "algebraic Killing spinor" method and also generalize the harmonic Ansatz in that our entire family of new supersymmetric backgrounds is characterized by the solutions of a single, second-order, non-linear PDE. We also show that our solution is a natural hybrid of special holonomy and the "dielectric deformation" of the canonical supersymmetry projector on the M2-branes.