Miracle-dz/UniFAR-FTUs huggingface dataset:
Yamagushi Decomposition Based on the Compact Polarimetry Mode Using RADARSAT2 Data

Recently, dual-mode partially polarimetric SAR modes (DP) called compact polarimetry have been proposed. In these polarimetric configurations, only one transmit/receive cycle is required instead of two in a full quad-pol system, reducing the pulse repetition frequency and data rates by a factor of two for a given swath width. Souyris et al. introduced the π/4 compact polarimetric mode, in which the transmitted polarization is the superposition of linear horizontal and vertical polarizations H + V, resulting in a linear polarization oriented at 45° with respect to the horizontal. The radar receives returns in horizontal and vertical polarizations. Another hybrid dual-pol mode is the circular transmit, linear receive (CTLR) mode. In these new polarimetric modes, an equivalent covariance or coherency matrix may be reconstructed to produce the so-called pseudo quad-pol data that accurately reproduces the full quad-pol data. The compact polarimetry was proposed to assess various architecture designs that could be implemented on lowcost/low-mass. In that context, the comparison between full polarimetry (fp) versus dual polarimetry (dp) is a subject of most importance. This paper provides a comparison of the information content of full quad-pol data and the pseudo quad-pol data derived from compact polarimetric SAR modes. Both the polarimetric signatures based on the kennaugh matrix and the Four component decomposition in the context of this compact polarimetry mode are explored. We illustrate our results by using the polarimetric SAR images of Algiers city in Algeria acquired by the RadarSAT2 in C-band.
Robust Airfoil Optimization Using Maximum Expected Value and Expected Maximum Value Approaches

Deterministic engineering design often leads to unexpected or physically unrealizable results. This is due to the fact that deterministic design is not able to capture the effects of even slight natural fluctuations of parameters. Deterministic transonic shape optimization is no exception: deterministic designs can result in dramatically inferior performance when the actual operating conditions are different from the design conditions used during a deterministic optimization procedure. The goal of this paper is to overcome the off-design performance degradation of deterministic transonic shape optimization by using two different optimization approaches to produce robust designs. Two criteria, the well-known maximum/minimum expected value criterion (MEV) and the alternative expectedmaximum/minimumvalue criterion (EMV), are studied and applied to improve an initial RAE2822 design. It turns out that EMV is much easier to implement than MEV, given a deterministic optimization code, and may provide a promising method for optimizing design shapes under uncertainty.
ADHD Symptoms and peer problems: Mediation of executive function and theory of mind

Abstract Background: The social maladjustment suffered by many children with attention deficit hyperactivity disorder (ADHD) is maintained over time, increasing the risk of subsequent adverse outcomes. The objectives of the study were to explore the mechanisms that operate between ADHD symptoms and social problems with peers, considering the mediation of FE and ToM. Method: 35 children with ADHD and 37 with typical development matched in age and IQ were compared. Parents assessed ToM skills and relationships with peers, and teachers provided EF ratings. Results: The analyses showed statistically significant indirect mediation effects of EF in the relationship between ADHD symptoms and problems in relationships with peers, whereas ToM did not show these effects. Conclusions: EF impairments contribute to the social difficulties of children with ADHD. Resumen Síntomas de TDAH y problemas con los compañeros: mediación del funcionamiento ejecutivo y de la teoría de la mente. Antecedentes: el desajuste social de muchos niños con Trastorno por Déficit de Atención con Hiperactividad (TDAH) se mantiene con el tiempo, aumentando el riesgo de resultados adversos. Los objetivos del estudio fueron explorar los mecanismos que operan entre los síntomas del TDAH y los problemas sociales con los compañeros, teniendo en cuenta el papel de FE y ToM. Método: se compararon 35 niños con TDAH y 37 con desarrollo típico de edad y QI. Los padres evaluaron las habilidades y las relaciones con los compañeros, y los maestros proporcionaron calificaciones EF. Resultados: los análisis mostraron efectos de mediación indirecta estadísticamente significativos de EF en la relación entre los síntomas del TDAH y los problemas en las relaciones con los compañeros, mientras que ToM no mostró estos efectos. Conclusiones: los déficits en EF contribuyen a las dificultades sociales de los niños con TDAH. Palabras clave: síntomas del ADHD, funcionamiento ejecutivo, problemas con los compañeros, teoría de la Mente.
Cyclic Equilibria in Markov Games

Although variants of value iteration have been proposed for finding Nash or correlated equilibria in general-sum Markov games, these variants have not been shown to be effective in general. In this paper, we demonstrate by construction that existing variants of value iteration cannot find stationary equilibrium policies in arbitrary general-sum Markov games. Instead, we propose an alternative interpretation of the output of value iteration based on a new (non-stationary) equilibrium concept that we call "cyclic equilibria. " We prove that value iteration identifies cyclic equilibria in a class of games in which it fails to find stationary equilibria. We also demonstrate empirically that value iteration finds cyclic equilibria in nearly all examples drawn from a random distribution of Markov games.
2 APK File Dynamic Analysis Emulator Android OS Dalvik VM Analysis Report Static Analysis Post Processing Network Protocols Code Coverage

The smartphone industry has been one of the fastest growing technological areas in recent years. Naturally, the considerable market share of the Android OS and the diversity of app distribution channels besides the official Google Play Store has attracted the attention of malware authors. To deal with the increasing numbers of malicious Android apps in the wild, malware analysts typically rely on analysis tools to extract characteristic information about an app in an automated fashion. While the importance of such tools has been addressed by the research community [8], [25], [26], [28], the resulting prototypes remain limited in terms of analysis capabilities and availability. In this paper we present ANDRUBIS, a completely automated, publicly available and comprehensive analysis system for Android applications. ANDRUBIS combines static analysis techniques with dynamic analysis on both Dalvik VM and system level, as well as several stimulation techniques to increase code coverage.
RADIATIVE MAGNETOHYDRODYNAMIC SIMULATION OF SUNSPOT STRUCTURE

Results of a three-dimensional MHD simulation of a sunspot with a photospheric size of about 20 Mm are presented. The simulation has been carried out with the MURaM code, which includes a realistic equation of state with partial ionization and radiative transfer along many ray directions. The largely relaxed state of the sunspot shows a division in a central dark umbral region with bright dots and a penumbra showing bright filaments of about 2–3 Mm length with central dark lanes. By a process similar to the formation of umbral dots, the penumbral filaments result from magnetoconvection in the form of upflow plumes, which become elongated by the presence of an inclined magnetic field; the upflow is deflected in the outward direction while the magnetic field is weakened and becomes almost horizontal in the upper part of the plume near the level of optical depth unity. A dark lane forms owing to the piling up of matter near the cusp-shaped top of the rising plume that leads to an upward bulging of the surfaces of constant optical depth. The simulated penumbral structure corresponds well to the observationally inferred interlocking-comb structure of the magnetic field with Evershed outflows along dark-laned filaments with nearly horizontal magnetic field and overturning perpendicular (“twisting”) motion, which are embedded in a background of stronger and less inclined field. Photospheric spectral lines are formed at the very top and somewhat above the upflow plumes, so that they do not fully sense the strong flow as well as the large field inclination and significant field strength reduction in the upper part of the plume structures.
ANÁLISE DO PROCESSO DE INTERNACIONALIZAÇÃO DAS MICRO E PEQUENAS EMPRESAS DE CAMPINAS/SP À LUZ DAS TEORIAS COMPORTAMENTAIS

A globalizacao tem mudado a dinâmica dos mercados, afetando empresas do mundo todo. Neste cenario altamente competitivo, a internacionalizacao torna-se um caminho natural para a sobrevivencia das empresas, inclusive as Micro e Pequenas Empresas (MPE’s), as quais devem se adequar a essa realidade, sob risco de ficarem a margem desse mercado. Este processo, conforme as teorias de internacionalizacao, pode ser explicado sob duas abordagens distintas: uma economica e outra comportamental. O objetivo desse artigo e analisar a influencia das teorias comportamentais no processo de internacionalizacao das MPE´s de Campinas/SP. Foi realizado um estudo de caso exploratorio envolvendo 32 empresas do municipio que tiveram experiencias com a exportacao – estagio inicial do processo de internacionalizacao – nos ultimos cinco anos. Apos a analise dos dados, constatou-se que, entre as teorias estudadas, o Modelo de Uppsala foi aquela que melhor explicou o processo de internacionalizacao destas empresas uma vez que, as empresas tem mantido proximidade com mercados externos que se caracterizam por menores distâncias psiquicas e como consequencia, por menores riscos.
Stickbreaking: A Novel Fitness Landscape Model That Harbors Epistasis and Is Consistent with Commonly Observed Patterns of Adaptive Evolution

In relating genotypes to fitness, models of adaptation need to both be computationally tractable and qualitatively match observed data. One reason that tractability is not a trivial problem comes from a combinatoric problem whereby no matter in what order a set of mutations occurs, it must yield the same fitness. We refer to this as the bookkeeping problem. Because of their commutative property, the simple additive and multiplicative models naturally solve the bookkeeping problem. However, the fitness trajectories and epistatic patterns they predict are inconsistent with the patterns commonly observed in experimental evolution. This motivates us to propose a new and equally simple model that we call stickbreaking. Under the stickbreaking model, the intrinsic fitness effects of mutations scale by the distance of the current background to a hypothesized boundary. We use simulations and theoretical analyses to explore the basic properties of the stickbreaking model such as fitness trajectories, the distribution of fitness achieved, and epistasis. Stickbreaking is compared to the additive and multiplicative models. We conclude that the stickbreaking model is qualitatively consistent with several commonly observed patterns of adaptive evolution.
APT detection system using honeypots

Recently emerged threat type of Advanced Persistent Threats (APTs). APTs continuously gather information and data on specific targets, using various attack techniques examine the vulnerabilities of the target and then perform the data obtained by hacking. APTs are very precise and intelligent. Perform specific attacks on specific targets, and so differs from traditional forms of hacking. APT is precisely focused on specific targets, according to the knowledge of the environment and selects appropriate types of attacks. Therefore, it is very difficult to detect APT attacks. This article describes the methods and procedures APT attacks, analysed and proposes solutions to detect these threats using honeypots system. Key-Words: APT, honeypot, computer security, attack, Advanced Persistent Threat
A response time-driven server selection substrate for application replica hosting systems

This paper presents a server selection approach that relies on a response time estimator and a scalable monitoring infrastructure that provides the utilization measures for replica server hosts. The big challenge rises from the difficulty to capture, both accurately and efficiently, the dynamic state of the hosts and network resources in a large-scale replication context. The monitoring infrastructure can be tuned such as to minimize the network traffic while maintaining the estimation accuracy high
A comparison of the theory of moisture diffusion in plastic encapsulated microelectronics with moisture sensor chip and weight-gain measurements

In this paper, the issues pertaining to moisture diffusion in PEMs are explored and discussed. The existing models of moisture diffusion in plastic molding compounds and PEMS are reviewed. Results, modeling and analysis of moisture sorption experiments performed in this study are presented. The moisture sorption experiments were conducted on a set of PEM samples with a common type of encapsulant material to 1) characterize sorption behavior; 2) compare weight gain measurement to the measurement of moisture concentration using a moisture sensor device at the die surface; 3) assess the moisture sensor measurement method. In the case of PEM samples tested in this study, simple Fickian diffusion was shown to agree closely with the experimental results. In one case, a relatively small anomaly from Fickian diffusion was observed and was attributed to swelling and relaxation phenomena at later stages of moisture sorption in the molding compound. The calibration constants determined for the sensors in this study were found to be significantly different from those collected by the manufacturer prior to the encapsulation of the devices. This problem is believed to be degradation in sensitivity of the moisture sensor due to exposure to high temperatures and storage conditions.
Regenerative potential of leucocyte‐ and platelet‐rich fibrin. Part B: sinus floor elevation, alveolar ridge preservation and implant therapy. A systematic review

Abstract Aim To analyse the effect of leucocyte‐ and platelet‐rich fibrin (L‐PRF) on bone regeneration procedures and osseointegration. Materials and Methods An electronic and hand search was conducted in three databases (MEDLINE, EMBASE and Cochrane). Only randomized clinical trials, written in English where L‐PRF was applied in bone regeneration and implant procedures, were selected. No follow‐up restrictions were applied. Results A total of 14 articles were included and processed. Three subgroups were created depending on the application: sinus floor elevation (SFE), alveolar ridge preservation and implant therapy. In SFE, for a lateral window as well as for the trans‐alveolar technique, histologically faster bone healing was reported when L‐PRF was added to most common xenografts. L‐PRF alone improved the preservation of the alveolar width, resulting in less buccal bone resorption compared to natural healing. In implant therapy, better implant stability over time and less marginal bone loss were observed when L‐PRF was applied. Meta‐analyses could not be performed due to the heterogeneity of the data. Conclusions Despite the lack of strong evidence found in this systematic review, L‐PRF might have a positive effect on bone regeneration and osseointegration.
Energetic and Exergetic Analysis of a Heat Exchanger Integrated in a Solid Biomass-Fuelled Micro-CHP System with an Ericsson Engine

A specific heat exchanger has been developed to transfer heat from flue gas to the working fluid (hot air) of the Ericsson engine of a solid biomass-fuelled micro combined heat and power (CHP). In this paper, the theoretical and experimental energetic analyses of this heat exchanger are compared. The experimental performances are described considering energetic and exergetic parameters, in particular the effectiveness on both hot and cold sides. A new exergetic parameter called the exergetic effectiveness is introduced, which allows a comparison between the real and the ideal heat exchanger considering the Second Law of Thermodynamics. A global analysis of exergetic fluxes in the whole micro-CHP system is presented, showing the repartition of the exergy destruction among the components.
Slow-food-seeking behaviour, authentic experience, and perceived slow value of a slow-life festival

This study examines the antecedents and consequences of perceived “slow” value in a structural model – specifically, the role authenticity plays for visitors who seek slow food and participate in slow-life-related programme activities. Data were collected from participants in a slow-life festival in South Korea. Results show that slow-food-seeking behaviour has a significant effect on the authentic experience, and both concepts affect the perception of “slow” value of the event. Attitude and the intention to revisit were significant consequences of “slow” value. This study extends the knowledge about tourist behaviour in slow-life-related activities, particularly in a non-Western context, and suggests that a slow-life-related event should consider visitors’ preference for slow food and a programme that stages authentic experiences.
Prevalence of Chronic Kidney Disease and Associated Factors in Senegalese Populations: A Community-Based Study in Saint-Louis.

Background: Chronic kidney disease (CKD) is an emerging worldwide epidemic but littledata concerning African populations are available. Objectives: We aimed to assess prevalence of CKD in adult populations of Saint-Louis, northern Senegal. Patients and Methods: In a population-based survey between January and May 2012, we included 1037 adults ≥ 18 years of age who resided in Saint-Louis. Socio-demographic, clinical, and biologic data were collected during household visits. Serum creatinine was measured by Jaffé method. We estimated glomerular filtration rate (eGFR) using the four-variable Modification of Diet in Renal Disease (MDRD) equation and CKD was defined by eGFR< 60 mL/min/1.73 m2 and/or albuminuria > 1 g/L. A multivariate logistic regression was performed to identify factors associated with CKD. Results: The mean of participants’ age was 47.9 ± 16.9 years (range, 18-87) and sex ratio (male to female) was 0.52. Majority of participants lived in urban areas (55.3%) and had school education (65.6%). Hypertension, diabetes, and obesity were present respectively in 39.1%, 12.7%, and 23.4% of participants. Overall CKD prevalence was 4.9% (95% CI, 3.5-6.2) with eGFR< 30 mL/min/1.73 m2 in 0.9%. Albuminuria > 1 g/L was found in 3.5% of patients. CKD was significantly more frequent among hypertensive patients in comparison with normotensive ones. Risk factors associated with CKD were hypertension (12% of risk excess) and age (3% of risk excess). Conclusions: CKD is frequent in adult population living in Northern Senegal. Main associated factors are hypertension and age. Prevention strategies are urgently needed to raise public awareness and promote early CKD detection and treatment in both urban and rural areas.
Combining Knowledge from Different Sources in Causal Probabilistic Models

Building probabilistic and decision-theoretic models requires a considerable knowledge engineering effort in which the most daunting task is obtaining the numerical parameters. Authors of Bayesian networks usually combine various sources of information, such as textbooks, statistical reports, databases, and expert judgement. In this paper, we demonstrate the risks of such a combination, even when this knowledge encompasses such seemingly population-independent characteristics as sensitivity and specificity of medical symptoms. We show that the criteria ``do not combine knowledge from different sources'' or ``use only data from the setting in which the model will be used'' are neither necessary nor sufficient to guarantee the correctness of the model. Instead, we offer graphical criteria for determining when knowledge from different sources can be safely combined into the general population model. We also offer a method for building subpopulation models. The analysis performed in this paper and the criteria we propose may be useful in such fields as knowledge engineering, epidemiology, machine learning, and statistical meta-analysis.
Distinct behavioural profiles in frontotemporal dementia and semantic dementia

OBJECTIVE To test predictions that frontotemporal dementia and semantic dementia give rise to distinct patterns of behavioural change. METHODS An informant based semistructured behavioural interview, covering the domains of basic and social emotions, social and personal behaviour, sensory behaviour, eating and oral behaviour, repetitive behaviours, rituals, and compulsions, was administered to carers of 41 patients with semantic dementia and with apathetic (FTD-A) and disinhibited (FTD-D) forms of frontotemporal dementia. RESULTS Consistent with prediction, emotional changes differentiated FTD from semantic dementia. Whereas lack of emotional response was pervasive in FTD, it was more selective in semantic dementia, affecting particularly the capacity to show fear. Social avoidance occurred more often in FTD and social seeking in semantic dementia. Patients with FTD showed reduced response to pain, whereas patients with semantic dementia more often showed exaggerated reactions to sensory stimuli. Gluttony and indiscriminate eating were characteristic of FTD, whereas patients with semantic dementia were more likely to exhibit food fads. Hyperorality, involving inedible objects, was unrelated to gluttony, indicating different underlying mechanisms. Repetitive behaviours were common in both FTD and semantic dementia, but had a more compulsive quality in semantic dementia. Behavioural differences were greater between semantic dementia and FTD-A than FTD-D. A logistic regression analysis indicated that emotional and repetitive, compulsive behaviours discriminated FTD from semantic dementia with 97% accuracy. CONCLUSION The findings confirm predictions regarding behavioural differences in frontotemporal and semantic dementia and point to differential roles of the frontal and temporal lobes in affect, social functioning, eating, and compulsive behaviour.
NSSR SSR RBP time to fill pipe

TCP congestion avoidance mechanisms are based on adjustments to the congestion-window size, triggered by the ACK clock. These mechanisms are not well matched to large but intermittent bursts of traffic, such as responses from a HTTP/1.1-based web server. Idle periods between bursts (web page replies) stop the ACK clock and hence disrupt even data flow. When restarting data flow after an idle period, current implementations either enforce slow start (SSR) or use the prior congestion window (NSSR). The former approach, while conservative, leads to low effective throughput in cases like P-HTTP. The latter case optimistically sends a large burst of back-to-back packets, risking router buffer overflow and subsequent packet loss. This paper proposes a third alternative: pacing some packets at a certain rate until the ACK clock can be restarted. We describe the motivation and implementation of this third alternative and present simulation results which show that it achieves the elapsed-time performance comparable to NSSR and loss behavior of SSR.