Miracle-dz/UniFAR-FTUs huggingface dataset:
Fermion analysis of IR modified Hořava–Lifshitz gravity: tunneling and perturbation perspectives

In this paper, we investigate the fermion Hawking radiation and quasinormal (QN) modes in infrared (IR) modified Hořava–Lifshitz (HL) gravity under tunneling and perturbation perspectives. Firstly, through the fermion tunneling in IR modified HL gravity, we obtain the Hawking radiation emission rate, tunneling temperature and entropy for the Kehagias–Sfetsos black hole. It is found that the results of fermion tunneling are consistent with the thermodynamics results obtained by calculating surface gravity. Secondly, we numerically calculate the low-lying QN mode frequencies of fermion perturbations by using WKB formulas including the third-order and sixth-order approximations simultaneously. It turns out that the actual frequency of fermion perturbation is larger than that in the Schwarzschild case, and the damping rate is smaller than that for the pure Schwarzschild. The results of fermion perturbation suggest the QN modes could live longer in HL gravity.
Multiperiodic Procurement Problem with Option Contracts under Inflation

This paper studies the problem of the multiperiod replenishment decisions for the retailer under inflation. In order to manage the risks of price and demand caused by inflation, the retailer has an opportunity to order products and purchase options from the supplier in each period. We formulate the multiperiod inventory model for the retailer with option contracts and then derive his myopic ordering policy in each period and his myopic expected total discounted profit over the entire time horizon. By taking the case without option contracts as a benchmark, we explore the effect of option contracts on the retailer’s decisions and performance under inflation. We find that the application of option contracts might induce the retailer to reduce the firm order and increase the total order in each period under inflation. We also find that the application of option contracts might benefit the retailer under inflation.
Anti-intellectual political rhetoric: a grounded theory on twitter echo chambers

BACKGROUND: Separating the pursuit of knowledge and scientific endeavors from politics is impossible. Through the advancement of technology, especially social media, it has become easier for politicians to dismiss science and intellectuals through anti-intellectual rhetoric at an unprecedented rate. Critical thinking in analyzing policies is discouraged and dismissed in favor of uncritical common sense. OBJECTIVE: This thesis sets out to explore how political anti-intellectual rhetoric is spread by politicians in the US and UK through social media, specifically Twitter. METHODOLOGY: This study applies a Mixed MethodsGrounded Theory approach to develop an emergent theory on anti-intellectualism in political tweets grounded in data. The data analyzed was taken from ten members of parliament in the United Kingdom and 11 politicians in the United States. A total of approx. 50,000 tweets were included in the raw dataset. The data was analyzed and sorted using CAQDAS as well as manual coding methods. FINDINGS: Through empirical analysis of the data the study found that politicians who tweet anti-intellectual tweets will disengage from the Twitter conversation afterward. However, Twitter’s method of displaying Twitter replies increases the probability of supporters seeing the message and multiplying it through an echo chamber. JUSTIFICATION FOR THEORY: The theory is grounded in the data presented in this thesis. Data was collected until further analysis resulted in theoretical saturation and failing to reject the emergent theory. IMPLICATIONS: As the politician has disengaged from the conversation, he or she can reject responsibility for the conversations that follow their tweet. In this manner a tweet that makes an uncritical claim can be morphed into a fully anti-science narrative through the echo chamber without the politician’s further involvement.
Physical-Chemical Effects of Nanoparticles on Electropolymerized Polyaniline

The incorporation of nanoparticles on polymer films is possible to obtain materials with desired properties. In the present work, we address the physical-chemical influence of nanoparticles in polymer films by producing and characterizing polyaniline hybrids with SiO2 and Au nanoparticles and comparing them with films with TiO2 nanoparticles. The hybrid films were characterized by SEM, EDS, UV-Vis, AFM, Raman, and cyclic voltammetry. Unlike TiO2 nanoparticles, SiO2 and Au nanoparticles do not promote any noticeable change in polyaniline oxidation state in less acid environments (pH 5.9 and 6.15). However, in those environments, the presence of nanoparticles significantly increases the film's conductivity. At a pH of 1.5 and 3.9, all three kinds of nanoparticles are screened by ions from the solution diminishing their physical-chemical effects on polyaniline. Thus, our results suggest that, in general, nanoparticles don't have any physical-chemical effects on polyaniline films when deposited in acid enough environments but can change their physical and chemical properties when deposited in less acid environments.
Vitamin D 3 receptor is highly expressed in Hodgkin ’ s lymphoma

Background Hodgkin lymphoma (HL) is one of the most frequent lymphoma in the western world. Despite a good overall prognosis, some patients suffer relapsing tumors which are difficult to cure. Over a long period Vitamin D has been shown to be a potential treatment for cancer. Vitamin D acts via the vitamin D receptor, a nuclear receptor, acting as an inducible transcription factor. We aimed to investigate the expression of vitamin D receptor as a possible diagnostic marker and potential therapeutic target in HL as well as in B-cell derived non-Hodgkin lymphoma (B-NHL).
Analyzing Enterprise System Post-Implementation Use of Manufacturing Processes in Greek SMEs

This exploratory study assesses the maturity of the use of manufacturing processes by Small and MediumSized Enterprises (SMEs) which run enterprise information systems (ESs). The chapter considers a reference set of manufacturing best practice processes and analyzes which of these processes are used and which are not on a sample of 15 Greek SMEs. It explores the causes of process non-use from the ES implementer’s perspective. The analysis shows that several production planning, scheduling, execution, and costing processes, which could in principle add value to the sample companies, are not used, even after 7 years on the average of ES operation. Most deficiencies can be attributed to the companies’ lack of process-specific knowledge. An implication is that the analysis of the use of detailed processes should be part of the process and ES maturity assessments, and should precede the evaluation of higher-level business process orientation metrics. DOI: 10.4018/978-1-4666-3664-4.ch006
Aalborg Universitet Towards Semantic Understanding of Surrounding Vehicular Maneuvers

This paper proposes the use of multiple low-cost visual sensors to obtain a surround view of the ego-vehicle for semantic understanding. A multi-perspective view will assist the analysis of naturalistic driving studies (NDS), by automating the task of data reduction of the observed sequences into events. A user-centric vision-based framework is presented using a vehicle detector and tracker in each separate perspective. Multi-perspective trajectories are estimated and analyzed to extract 14 different events, including potential dangerous behaviors such as overtakes and cut-ins. The system is tested on ten sequences of real-world data collected on U.S. highways. The results show the potential use of multiple low-cost visual sensors for semantic understanding around the ego-vehicle.
An Automatic Hole-Filling Algorithm for Polygon Meshes

AbstractThis paper addresses the problem of automatic hole-filling on polygon meshes based on radial basis functions (RBFs). Firstly, we use the topology connectivity of a watertight triangle mesh to detect the undesired holes. Secondly, 2 or 3-ring vertexes of the boundary of the holes are sampled from the original mesh. Thirdly, a surface patch is reconstructed from the sampled interpolation points by using RBFs. In order to stitch the surface patch and the original mesh with holes, we project the surface patch and the boundary polygon of the holes onto a plane with maximum areas, which can reduce the complexity by converting the problem from 3D into 2D. After we blend the projected polygons and the projected surface patches, then they are remapped into 3D space to finish the stitch operation. Lots of experiments reveal the efficiency and accuracy of our proposed algorithm.
Deep Chandra and XMM–Newton X-ray observations of AWM 7 – I. Investigating X-ray surface brightness fluctuations

We investigate the levels of small-scale structure in surface brightness images of the core of the X-ray bright cool-core galaxy cluster AWM 7. After subtraction of a model of the smooth cluster emission, we find a number of approximately radial surface brightness depressions which are not present in simulated images and are seen in both the Chandra and XMM–Newton data. The depressions are most strongly seen in the south of the cluster and have a magnitude of around 4 per cent in surface brightness. We see these features in both an energy band sensitive to the density (0.6–5 keV) and a band more sensitive to the pressure (3.5–7.5 keV). Histograms of surface brightness in the data, when compared to realizations of a smooth model, reveal stronger surface brightness variations. We use the Δ-variance technique to characterize the magnitude of the fluctuations as a function of length scale. We find that the spectrum in the 0.6–5 keV band is flatter than expected for Kolmogorov index fluctuations. If characterized by a power spectrum, on large scales it would have an index around −1.7, rather than −3.7. The implied three-dimensional (3D) density fluctuations have a standard deviation of around 4 per cent. The implied 3D pressure variations are at most 4 per cent. Most of the longer scale power in the density spectrum is contributed by the southern half of the cluster, where the depressions are seen. The density variations implied by the spectrum of the northern sector have a standard deviation of about 2 per cent.
Online Information Seeking: A Review of the Literature in the Health Domain

— The development of the information technology and Internet has been transforming the healthcare industry. The internet is continuously accessed to seek for health information and there are variety of sources, including search engines, health websites, and social networking sites. Providing more and better information on health may empower individuals, however, ensuring a high quality and trusted health information could pose a challenge. Moreover, there is an ever-increasing amount of information available, but they are not necessarily accurate and up to date. Thus, this paper aims to provide an insight of the models and frameworks related to online health information seeking of consumers. It begins by exploring the definition of information behavior and information seeking to provide a better understanding of the concept of information seeking. In this study, critical factors such as performance expectancy, effort expectancy, and social influence will be studied in relation to the value of seeking health information. It also aims to analyze the effect of age, gender, and health status as the moderator on the factors that influence online health information seeking, i.e. trust and information quality. A preliminary survey will be carried out among the health professionals to clarify the research problems which exist in the real world, at the same time producing a conceptual framework. A final survey will be distributed to five states of Malaysia, to solicit the feedback on the framework. Data will be analyzed using SPSS and SmartPLS 3.0 analysis tools. It is hoped that at the end of this study, a novel framework that can improve online health information seeking is developed. Finally, this paper concludes with some suggestions on the models and frameworks that could improve online health information seeking.
Infection par Helicobacter pylori: prévalence et facteurs associés dans une population tout venant d’après une recherche par test respiratoire à l’urée marquée au carbone 14

Introduction l´infection à Helicobacter pylori (H. pylori) est fréquente dans les pays en voie de développement comme le Bénin. Ce germe peut favoriser la survenue d´affections gastroduodénales, allant de la gastrite au cancer gastrique. Les différentes études réalisées au Bénin sur cette bactérie ont utilisé des méthodes telles que la sérologie, l´étude anatomo-pathologique de biopsies ou la recherche d´antigène dans les selles. La présente étude avait pour but d´évaluer la prévalence d´infection par H. pylori et les facteurs associés à cette infection en utilisant un test respiratoire. Méthodes il s´agissait d´une étude prospective descriptive sur 150 patients qui ont réalisé le test respiratoire à l´urée marquée au carbone 14. Seul les patients admis pour test respiratoire et ayant donné leur consentement étaient inclus. Une fiche d´enquête a été remplie au fur et à mesure. Une analyse univariée par régression logistique simple a permis d´identifier les facteurs associés à l´infection par H. pylori à un seuil de 0,05. La stratégie d´analyse multivariée a consisté à inclure dans le model toutes les variables dont la valeur de p est inférieure à 0,20. La procédure manuelle descendante a été utilisée jusqu´à obtenir le modèle final qui a permis de retenir de facteurs associés avec des rapports de cotes ajustés. Résultats l´âge moyen était de 44,4±15,8 ans; avec des extrêmes de 5 ans et 84 ans. Les hommes représentaient 54% de la population d´étude. Des 150 sujets, 82 (57,8%) avaient un niveau d´instruction supérieur contre 8 (5,6%) non scolarisés, 116 (80,6 %) vivaient en couple, 24 (36%) vivaient dans une chambre de plus de 10 personnes et 84 (59,6%) étaient des chrétiens. Les principaux motifs ayant conduit à la réalisation de test respiratoire étaient: douleurs abdominales mal systématisées (53,3%; 70/150), douleurs épigastriques provoquées (35,3%; 53/150), les épigastralgies (20,7%; 31/150), un syndrome ulcéreux (16%; 24/150). La prévalence d´H. pylori par test respiratoire au sein de la population étudiée était de 34,7% (52/150). En analyse multivariée, les variables significativement associées à l´infection à l´H. pylori étaient: l´âge moyen [AOR (95%IC) = 1,02; OR (95% IC) = 1,00-1,05 et p = 0,01] et la notion d´un traitement antérieur d´éradication de l´H. pylori[AOR (95%IC) = 4,79; OR (95% IC) = 1,50-13,86 et p = 0,006]. Aucune comorbidité étudiée n´était associée à l´infection par H. pylori dans notre série. Conclusion la prévalence d´H. pylori trouvée par cette méthode est faible (34,7%). Elle est significativement associée à l´âge moyen et à la notion d´un traitement antérieur d´éradication de l´H. pylori.
The personality profi les of early adopters of energy-efficient technology

This study investigates whether energy efficiency investments are driven by differences in personality traits among homeowners. Using data on nearly 3,000 households in Germany, we estimate that compared to the median level, homeowners in the lowest quartile of Openness to Experience have 5.0%-23.4% lower propensity to invest in capital-intensive energy efficiency measures, while homeowners in the highest quartile of Agreeableness are 7.7%-18.0% less likely to do so. Splitting the energy efficiency investments into two groups yields stronger effects of the same two personality traits for window modernisations and thermal insulation installations, whereas no impact of the personality traits is observed for solar energy and other alternative energy systems, possibly because subsidies for the latter were introduced much earlier in Germany, overriding any effects of personality traits in the investment decisions. These findings may also suggest that personality traits are of greater significance for marginal investors.
Quadrupolar quantum criticality on a fractal

We study the ground state ordering of quadrupolar ordered $S=1$ magnets as a function of spin dilution probability $p$ on the triangular lattice. In sharp contrast to the ordering of $S=1/2$ dipolar N\'eel magnets on percolating clusters, we find that the quadrupolar magnets are quantum disordered at the percolation threshold, $p=p^*$. Further we find that long-range quadrupolar order is present for all $p<p^*$ and vanishes first exactly at $p^*$. Strong evidence for scaling behavior close to $p^*$ points to an unusual quantum criticality without fine tuning that arises from an interplay of quantum fluctuations and randomness.
The Role of Trust in European Food Chains: Theory and Empirical Findings

In Europe, consumer trust in food has become one of the most important factors for the stability of the food sector. An essential prerequisite for the ability to communicate the trustworthiness of food to consumers (B2C) is the creation, maintenance, and communication of trust between companies across the entire food value chain (B2B). For the management and preservation of trust in food chains it is important to know whether differences occur across European countries or whether distinct product chains show variations regarding trust. Based on a survey in five European countries with 747 respondents, this paper assesses the current level of trust between companies together with its influencing structural factors in European food chains and determines criteria allowing the active management of the level of trust in business relations in food chains by estimating a structural equation model.
Staphylococcal Pyoderma and Methicillin Resistance Staphylococcal

Staphylococcal Pyoderma Bacteria of the genus Staphylococcus are gram-positive cocci that exist as part of the normal cutaneous flora of mammals. However, due to a disruption in the skin’s natural defense mechanisms, these bacteria can proliferate and cause infection. Dogs harbor coagulase-positive staphylococcus on non-lesional skin and mucosal surfaces (carriage sites). Studies have shown that such carriage sites may be the source of pathogenic staphylococcus in dogs, resulting in the lesions of bacterial folliculitis.
POTENTIAL ICE CRYSTAL MARKS FROM PENNSYLVANIAN–PERMIAN EQUATORIAL RED-BEDS OF NORTHWEST COLORADO, U.S.A.

Abstract: The Pennsylvanian–Permian Maroon Formation of northwest Colorado is an up to 4,600 m thick succession of mainly siliciclastic continental red-beds deposited in equatorial intermontane basins of the Ancestral Rocky Mountains. Sedimentary surfaces of fluvio-lacustrine to eolian siltstones and fine-grained sandstones from various stratigraphic levels within the Maroon Formation preserve cm-sized straight to gently curved sediment-filled acicular structures referred to five morphological groups: single, branched, stellate, rosette, and bunched. Depositional environment, shape, and size of the structures are most similar to ice crystal marks that result from freezing of water-saturated fine-grained substrate at the sediment-air interface. They differ from other syngenetically produced crystals and crystal pseudomorphs in sedimentary rocks mainly by crystal shape and environmental conditions. The potential ice crystal marks of the Maroon Formation are notable for the fidelity and morphological diversity of the crystal casts and could be a key for the understanding of similar but hitherto often only called enigmatic structures of the sedimentary rock record. The ice crystal mark occurrences in the Maroon Formation suggest that night frost affected lower elevation equatorial areas during the climax of the Late Paleozoic Ice Age and may stimulate research on evolutionary adaptations of early terrestrial biota to overcome significant air temperature fluctuations.
THE CENTER FOR AGRICULTURAL ECONOMIC RESEARCH

In many arid and semi-arid regions whether or not to use desalinated water has long been a non-issue and policy debates are focused on the timing and extent of the desalination activities. We offer a model to analyze how water scarcity and demand structure, on the one hand, and cost reduction via R&D activities, on the other hand, affect the desirable development of desalination technologies and the optimal time profiles of fresh and desalinated water suppliesrhe optimal R&D policy is found to follow a Non-Standard Most Rapid Approach Path (NSMRAP): The state of desalination technology—the accumulated knowledge from R&D activities—should approach a prespecified target process as rapidly as possible and proceed along it forever. The NSMRAP property enables a complete characterization of a comprehensive water policy in terms of a simple and tractable set of rules. 'Department of Agricultural Economics and Management, The Hebrew University of Jerusalem, P.O. Box 12, Rehovot, 76100, Israel (tsur@agri.huji.ac.i1) and Department of Applied Economics, University of Minnesota, 1994 Buford Avenue, St. Paul, MN 55108, USA (ytsur@deptagecon.umn.edu) b Center for Energy and Environmental Physics, The Jacob Blaustein Institute for Desert Research, Ben Gurion University of the Negev, Sede Boker Campus, 84990, Israel and Department of Industrial Engineering and Management, Ben Gurion University of the Negev, Beer Sheva, 84105, Israel (amos@bgumail.bgu.ac.i1)
A New Continuous Model for Deep Submicron MOSFETs

ABSTRACT A 1-D model is developed to account for mobile charges in the Source/Drain junction regions of a MOSFET. 2-D effects such as Threshold Roll-off and Drain Induced Barrier Lowering are accounted for with an empirical function Γ constructed by fitting our equations to measured data. The model is scalable, and only one round of fitting to measured data is needed for each process technology. The resulting drain current is continuous over the entire operating range of the transistor.
Soil Heat and Water Flow With a Partial Surface Mulch

A computer model using the alternating direction implicit (ADI) finite difference method to study two-dimensional coupled soil heat and water flow with a partial surface mulch cover is developed. A new, simplified computational procedure, which has only tridiagonal matrix problems, for the ADI method is introduced. The model uses a soil surface energy balance equation to determine soil surface boundary conditions for both heat and water flow. The inputs required for the computer simulations are weather data, soil thermal and hydraulic properties, and mulch data. Numerical experiments are performed to examine the effects of soil type, mulch width, and weather conditions on soil heat and water movement. For continuous evaporation and drainage, 10-day simulations were performed for each combination of clay, loam, and sand soil and fractions of mulch cover of 0, 0.5, 0.8, and 1.0 of the row interval width. For repetitive evaporation and infiltration, 15-day simulations were performed. The mulch cover greatly reduces evaporation loss and the amplitude of daily soil temperature, water content, and pressure head variations. Large spatial variations in temperature and soil water content are predicted near the interface of mulch and bare soil surface. The soil hydraulic properties have important roles in controlling soil surface water content. The present model reasonably describes the soil thermal and hydrologic environments and thus can be applied successfully in soil science and groundwater hydrology and can be extended to related disciplines.