Miracle-dz/UniFAR-FTUs huggingface dataset:
Improving quality of service in application clusters

Quality of service (QoS) requirements, which include availability, integrity, performance and responsiveness are increasingly needed by science and engineering applications. Rising computational demands and data mining present a new challenge in the IT world. As our needs for more processing, research and analysis increase, performance and reliability degrade exponentially. In this paper we present a software system that manages quality of service for Unix based distributed application clusters. Our approach is synthetic and involves intelligent agents that make use of static and dynamic ontologies to monitor, diagnose and correct faults at run time, over a private network. Finally, we provide experimental results from our pilot implementation in a production environment.
Influence of Issue Decision Salience on Vote Choice: Linking Agenda Setting, Priming, and Issue Ownership

This study introduces issue decision salience as a mechanism for understanding how issue ownership processes impact vote choice, using panel data from the 2006 Swedish national elections. A model is developed probing the multiple influences of news attention and discussion on issue decision salience, party evaluation, candidate evaluation, and vote decision. The results suggest that a synthesis of agenda setting and priming with issue ownership offers a valuable framework for documenting how issue salience might affect ballot choice.
Interhemispheric Integration of Visual Processing during Task-Driven Lateralization

The mechanisms underlying interhemispheric integration (IHI) remain poorly understood, particularly for lateralized cognitive processes. To test competing theories of IHI, we constructed and fitted dynamic causal models to functional magnetic resonance data from two visual tasks that operated on identical stimuli but showed opposite hemispheric dominance. Using a systematic Bayesian model selection procedure, we found that, in the ventral visual stream, which was activated by letter judgments, interhemispheric connections mediated asymmetric information transfer from the nonspecialized right to the specialized left hemisphere when the latter did not have direct access to stimulus information. Notably, this form of IHI did not engage all areas activated by the task but was specific for areas in the lingual and fusiform gyri. In the dorsal stream, activated by spatial judgments, it did not matter which hemisphere received the stimulus: interhemispheric coupling increased bidirectionally, reflecting recruitment of the nonspecialized left hemisphere. Again, not all areas activated by the task were involved in this form of IHI; instead, it was restricted to interactions between areas in the superior parietal gyrus. Overall, our results provide direct neurophysiological evidence, in terms of effective connectivity, for the existence of context-dependent mechanisms of IHI that are implemented by specific visual areas during task-driven lateralization.
The UZH System Combination System for WMT 2011

This paper describes the UZH system that was used for the WMT 2011 system combination shared task submission. We participated in the system combination task for the translation directions DE--EN and EN--DE. The system uses Moses as a backbone, with the outputs of the 2--3 best individual systems being integrated through additional phrase tables. The system compares well to other system combination submissions, with no other submission being significantly better. A BLEU-based comparison to the individual systems, however, indicates that it achieves no significant gains over the best individual system.
Emotional inertia contributes to depressive symptoms beyond perseverative thinking

The autocorrelation or inertia of negative affect reflects how much negative emotions carry over from moment to moment and has been associated with increased depressive symptoms. In this study, we posed three challenges to this association by examining: (1) whether emotional inertia is relevant for depressive symptoms when assessed on a longer timescale than usual; (2) whether inertia is uniquely related to depressive symptoms after controlling for perseverative thoughts; and (3) whether inertia is related to depressive symptoms over and above the within-person association between affect and perseverative thoughts. Participants (N = 101) provided ratings of affect and perseverative thoughts for 100 days; depressive symptoms were reported before and after the study, and again after 2.5 years. Day-to-day emotional inertia was related to depressive symptoms over and above trait and state perseverative thoughts. Moreover, inertia predicted depressive symptoms when adjusting for its association with perseverative thoughts. These findings establish the relevance of emotional inertia in depressive symptoms independent of perseverative thoughts.
Functional changes in patients with internet addiction disclosed by adenosine stressed cerebral blood flow perfusion imaging (99m)Tc-ECD SPET.

OBJECTIVE To investigate the abnormal cerebral blood flow (CBF) perfusion in patients with internet addiction (IA) and its possible association with IA severity. SUBJECTS AND METHODS Thirty-five adolescents who met the criteria for IA and 12 matched healthy volunteers were recruited for (99m)Tc-ethylcysteinate dimer based CBF perfusion imaging with single photon emission tomography (SPET) both at rest and in adenosine-stressed state. Regional CBF (rCBF) was measured and compared between IA subjects and the controls. Correlation analysis between those abnormal rCBF in adenosine-stressed state and the duration of IA was performed. RESULTS At the resting state, the IA individuals showed significantly increased rCBF in the left mid-frontal gyrus and left angular gyrus, but significantly decreased in the left paracentral lobule, compared to the controls. In adenosine-stressed state, more cerebral regions with abnormal rCBF were identified. Specifically, increased rCBF was identified in the right paracentral lobule, right mid-frontal gyrus and left superior temporal gyrus, while decreased rCBF were demonstrated in right transverse temporal gyrus, left inferior frontal gyrus and left precuneus. Those rCBF in rCBF-increased regions in stress state were positively correlated with the duration of IA, while those in rCBF-decreased regions were negatively correlated with the duration of IA. CONCLUSION We present specific functional changes in behaviour that may appear in IA patients related to the CBF findings in IA patients. Adenosine can be used as a pharmacological agent for stress CBF perfusion imaging in patients with IA, by which more cerebral regions of abnormal rCBF can be identified compared to the state at rest. These abnormal rCBF may indicate the neurological mechanism in IA patients.
Identifying MiRNA and Imaging Features Associated with Metastasis of Lung Cancer to the Brain

MicroRNAs are small non-coding RNAs of 21-25 nucleotides that might impact regulatory mechanisms in cancer. Due to their influence on cell physiology, alteration of miRNA regulation can be implicated in carcinogenesis and disease progression. In general, one miRNA is predicted to regulate several hundred genes, and as a result, miRNA profiling could serve as a better classifier than gene expression profiling.More than 50% of brain metastasis (brain mets) are associated with non-small cell lung cancer (NSCLC). As miRNAs can regulate certain genes, the presence or absence of certain miRNA could lead to oncogene potential for brain mets. In this study, we combine validated miRNA expression values with imaging features to separate NSCLC brain mets from non-brain mets and identify biomarkers that may indicate possibility of brain mets. This research involves comprehensive miRNA expression profiling, validation of miRNA with qRT-PCR, correlation of miRNA with imaging features such as PET/CT and CT Scan. Eleven statistically significant miRNA were identified and matched with imaging features to yield a class separation of brain mets and non-brain mets.
Formation of three-dimensional Parylene C structures via thermoforming

The thermoplastic nature of Parylene C is leveraged to enable the formation of three-dimensional structures using a thermal forming (thermoforming) technique. Thermoforming involves the heating of Parylene films above its glass transition temperature while they are physically confined in the final desired conformation. Micro and macro scale three-dimensional structures composed of Parylene thin films were developed using the thermoforming process, and the resulting chemical and mechanical changes to the films were characterized. No large changes to the surface and bulk chemistries of the polymer were observed following the thermoforming process conducted in vacuum. Heat treated structures exhibited increased stiffness by a maximum of 37% depending on the treatment temperature, due to an increase in crystallinity of the Parylene polymer. This study revealed important property changes resulting from the process, namely (1) the development of high strains in thermoformed areas of small radii of curvature (30–90 µm) and (2) ∼1.5% bulk material shrinkage in thermoformed multilayered Parylene–Parylene and Parylene–metal–Parylene films. Thermoforming is a simple process whereby three-dimensional structures can be achieved from Parylene C-based thin film structures with tunable mechanical properties as a function of treatment temperature.
Adolescent–Parent Relationships in the Context of Adolescent Chronic Pain Conditions

ObjectiveThis study explored adolescent–parent relationships in families of adolescents with chronic pain. MethodsA retrospective review was conducted on 112 adolescents with chronic pain who presented for clinical evaluation at an outpatient pediatric multidisciplinary pain management clinic. Adolescents reported on pain severity and duration, functional disability, and psychological distress. Parents responded to a measure of adolescent–parent relationship distress. ResultsThe findings show that as a group, parents of adolescents with chronic pain syndromes reported less adolescent–parent relationship distress compared to normative data. Adolescent–parent relationship distress was inversely correlated with pain severity. A multiple regression model containing indicators of global psychological distress, pain severity, and adolescent–parent relationship distress predicted levels of adolescents' functional disability. Pain severity and functional disability were more closely linked at the low end of Adolescent–Parent Relationship Domain scores. DiscussionThe findings suggest important directions for future research to advance our understanding of the role of adolescent–parent relationships in the pain–disability cycle.
Follower Beliefs in the Co-Production of Leadership

Drawing on a role-based approach to followership, we investigate followers’ beliefs about the co-production of leadership and examine the association of these beliefs with upward communication behaviors. We also investigate the potential moderating effects of leader consideration, leader-follower relationship quality, and autonomous work climate on the relationship between co-production beliefs and upward communication. The findings show a positive relationship between co-production beliefs and upward communication with leaders (i.e., voice and constructive resistance). Findings also show that leadership style, overall relationship quality, and autonomous work climate moderate the relationship between co-production beliefs and voice, but not constructive resistance. Interactions show that followers with weaker co-production beliefs use significantly less voice when leadership and contextual conditions were unfavorable, but that contextual conditions did not diminish the voice behaviors of those with stron.
Testing software defined and cognitive radios using software defined synthetic instruments

Software Defined Radios (SDRs) are wireless communication systems in which many of the radios' important functional elements, including filtering, frequency translation and modulation/demodulation, are implemented in software via Digital Signal Processing (DSP) techniques using embedded processors and Field Programmable Gate Arrays (FPGA) as described by Harris and Lowdermilk in 2010 [1]. SDRs differ from traditional radios that typically employ custom silicon to implement such functions. SDRs exhibit several advantages over traditional radios, including re-configurability and reduced development costs and time-to-market since they do not require custom silicon. SDRs also enjoy long life cycles, since they can readily be adapted to meet future needs. Cognitive Radios (CRs) are a special class of SDRs that employ adaptive DSP technologies to implement spectral management. This enables CRs to deliver improved effective bandwidth, quality of service, and enhanced security, which have become increasingly important in modern commercial and military wireless communications applications.
“pq theory” control applied to wind turbine trapezoidal PMSG under symmetrical fault

The permanent magnet synchronous generators (PMSG) used in wind turbines usually are machines with trapezoidal electromotive force (EMF) waveforms. The control techniques based on Park's transformation, decomposing the voltages and currents into d and q axes, are not fully satisfactory when applied to such machines. For this reason, this paper proposes to realize the control of a permanent magnet generator with nonsinusoidal EMF using the “pq” or “instantaneous active and reactive power” theory. The objective is to reduce fluctuations of the generator's torque and power, and this is done by comparison between the dq and the pq control. On the other hand, the grid-side converter control is still done using the dq technique. The low voltage ride through (LVRT) requirements is considered in the design of the generator control on the case of symmetrical faults. A control technique is used in which the responsibility of maintaining the DC link voltage constant belongs to the generator-side converter and not to the network side converter as usual. Simulations using Matlab/Simulink show the effectiveness of the techniques proposed here in two cases: one where the wind turbine experiences a step increase in the wind speed and the other when a symmetrical voltage sag occurs at the network connection terminals.
Calculation of the Variance in Surveys of the Economic Climate

Public opinion surveys have become progressively incorporated into systems of official statistics. Surveys of the economic climate are usually qualitative because they collect opinions of businesspeople and/or experts about the long-term indicators described by a number of variables. In such cases the responses are expressed in ordinal numbers, that is, the respondents verbally report, for example, whether during a given trimester the sales or the new orders have increased, decreased or remained the same as in the previous trimester. These data allow to calculate the percent of respondents in the total population (results are extrapolated), who select every one of the three options. Data are often presented in the form of an index calculated as the difference between the percent of those who claim that a given variable has improved in value and of those who claim that it has deteriorated. As in any survey conducted on a sample the question of the measurement of the sample error of the results has to be addressed, since the error influences both the reliability of the results and the calculation of the sample size adequate for a desired confidence interval. The results presented here are based on data from the Survey of the Business Climate (Encuesta de Clima Empresarial) developed through the collaboration of the Statistical Institute of Catalonia (Institut d’Estadistica de Catalunya) with the Chambers of Commerce (Camaras de Comercio) of Sabadell and Terrassa.
Deep Decentralized Multi-task Multi-Agent Reinforcement Learning under Partial Observability

Many real-world tasks involve multiple agents with partial observability and limited communication. Learning is challenging in these settings due to local viewpoints of agents, which perceive the world as non-stationary due to concurrently-exploring teammates. Approaches that learn specialized policies for individual tasks face problems when applied to the real world: not only do agents have to learn and store distinct policies for each task, but in practice identities of tasks are often non-observable, making these approaches inapplicable. This paper formalizes and addresses the problem of multi-task multi-agent reinforcement learning under partial observability. We introduce a decentralized single-task learning approach that is robust to concurrent interactions of teammates, and present an approach for distilling single-task policies into a unified policy that performs well across multiple related tasks, without explicit provision of task identity.
Analytical derivation of the vegetation optical depth from the microwave polarization difference index

A numerical solution for the canopy optical depth in an existing microwave-based land surface parameter retrieval model is presented. The optical depth is derived from the microwave polarization difference index and the dielectric constant of the soil. The original procedure used an approximation in the form of a logarithmic decay function to define this relationship and was derived through a series of lengthy polynomials. These polynomials had to be recalculated when the scattering albedo or antenna incidence angle changes. The new procedure is computationally more efficient and accurate.
Study on the Idle Mode Capability with LoS and NLoS Transmissions

In this paper, we study the impact of the base station (BS) idle mode capability (IMC) on the network performance in dense small cell networks (SCNs). Different from existing works, we consider a sophisticated path loss model incorporating both line-of-sight (LoS) and non- line-of-sight (NLoS) transmissions. Analytical results are obtained for the coverage probability and the area spectral efficiency (ASE) performance for SCNs with IMCs at the BSs. The upper bound, the lower bound and the approximate expression of the activated BS density are also derived. The performance impact of the IMC is shown to be significant. As the BS density surpasses the UE density, thus creating a surplus of BSs, the coverage probability will continuously increase toward one. For the practical regime of the BS density, the results derived from our analysis are distinctively different from existing results, and thus shed new light on the deployment and the operation of future dense SCNs.
The C. elegans homolog of nucleoporin Nup98 is required for the integrity and function of germline P granules

is enriched in P granules and associates with the translationally repressed, P granule-enriched mRNA nos-2 ( nanos homolog). Loss of CeNup98 causes P granules to disperse in the cytoplasm and to release nos-2 mRNA. Embryos depleted for CeNup98 express a nos-2 3 (cid:2) UTR reporter prematurely. In the mouse, Nup98 immunoprecipitates with the germ granule component MVH. Our findings suggest that, in germ cells, the function of Nup98 extends beyond transport at the nuclear pore to include mRNA regulation in the cytoplasm.
Iliofemoral deep venous thrombosis: aggressive therapy with catheter-directed thrombolysis.

PURPOSE To evaluate the efficacy of catheter-directed thrombolysis with urokinase in treating symptomatic iliofemoral deep venous thrombosis (DVT). MATERIALS AND METHODS Twenty-one consecutive patients with iliofemoral DVT underwent treatment for 27 affected limbs (acute DVT, n = 20; chronic DVT, n = 7). The average urokinase dose was 4.9 million IU (range, 1.4 million to 16.0 million IU) infused over an average of 30 hours (range, 15-74 hours). RESULTS Lysis was complete in 18 (72%), partial in five (20%), and not achieved in two (8%) of 25 treated limbs. Two chronically occluded iliac veins could not be crossed with a guide wire and did not receive urokinase. Sixteen limbs had underlying venous stenoses (> 50%) that were treated with angioplasty (n = 2) or angioplasty and stent placement (n = 14). There were no major complications or clinically detectable pulmonary emboli. The technical and clinical success rates were 85%. CONCLUSION This initial experience suggests that catheter-directed thrombolysis with urokinase for treatment of symptomatic iliofemoral DVT is safe and effective.
TCP Performance Enhancement Using ECN and Snoop Protocol for Wi-Fi Network

Providing Internet services over wireless links has grown rapidly in recent years. TCP (Transmission Control Protocol) has been performing well over the traditional wired networks where packet losses occur mostly because of congestion, it cannot react efficiently in wireless networks, which suffer from significant non-congestion-related losses due to reasons such as bit errors and handoffs. The paper shows how Explicit Congestion Notification (ECN), Snoop protocol and their combination can be used to improve the performance of TCP in Wi-Fi Bi-directional Network and in Handoff. ECN will help in congestion control and SNOOP will retransmit the packets that are lost from nodes in between, saving nearly half the retransmission time and avoiding the decreasing in transmission speed. This paper investigates the performance of above mentioned protocols over Wi-Fi wireless scenario which improves the various parameters of TCP such as throughput and goodput. The results of the same can be demonstrated on NS2 simulator.
Conceptual issues concerning mediation, interventions and composition

Concepts concerning mediation in the causal inference literature are reviewed. Notions of direct and indirect effects from a counterfactual approach to mediation are compared with those arising from the standard regression approach to mediation of Baron and Kenny (1986), commonly utilized in the social science literature. It is shown that concepts of direct and indirect effect from causal inference generalize those described by Baron and Kenny and that under appropriate identification assumptions these more general direct and indirect effects from causal inference can be estimated using regression even when there are interactions between the primary exposure of interest and the mediator. A number of conceptual issues are discussed concerning the interpretation of identification conditions for mediation, the notion of counterfactuals based on hypothetical interventions and the so called consistency and composition assumptions.
Triple Graph Grammars : Concepts , Extensions , Implementations , and Application Scenarios

Triple Graph Grammars (TGGs) are a technique for defining the correspondence between two different types of models in a declarative way. The power of TGGs comes from the fact that the relation between the two models cannot only be defined, but the definition can be made operational so that one model can be transformed into the other in either direction; even more, TGGs can be used to synchronize and to maintain the correspondence of the two models, even if both of them are changed independently of each other; i. e. , TGGs work incrementally.
New adaptive sliding observers for position- and velocity-sensorless controls of brushless DC motors

A new adaptive sliding observer is proposed for position- and velocity-sensorless controls of a cylindrical brushless DC motor. Stability of the proposed observer is guaranteed easily, because it is based on a linear model of the motor. Sliding mode is applied for the current estimation. Under the sliding mode, the order of the observer's error equation is reduced. This makes the stability analysis easier, so that robust position and velocity estimations might be achieved by the pole assignment. Experimental results show that the proposed method is very effective.