Miracle-dz/UniFAR-FTUs huggingface dataset:
MBER Space-Time Decision Feedback Equalization Assisted Multiuser Detection for Multiple Antenna Aided SDMA Systems

This paper proposes a space-time decision feedback equalization (ST-DFE) assisted multiuser detection (MUD) scheme for multiple receiver antenna aided space division multiple access systems. A minimum bit error rate (MBER) design is invoked for the MUD, which is shown to be capable of improving the achievable bit error rate performance and enhancing the attainable system capacity over that of the standard minimum mean square error (MMSE) design. An adaptive implementation of the MBER ST-DFE assisted MUD is proposed using a stochastic gradient-based least bit error rate algorithm, which is demonstrated to consistently outperform the classical least mean square (LMS) algorithm, while achieving a lower computational complexity than the LMS algorithm for the binary signalling scheme. Our simulation results demonstrate that the MBER ST-DFE assisted MUD is more robust to channel estimation errors as well as to potential error propagation imposed by decision feedback errors, compared to the MMSE ST-DFE assisted MUD
Beyond S-DSM: Shared State for Distributed Systems

InterWeave is a distributed middleware system that attempts to do for computer programs what the World Wide Web did for human beings: make it dramatically simpler to share information across the Internet. Specifically, InterWeave allows processes written in multiple languages, running on heterogeneous machines, to share arbitrary typed data structures as if they resided in local memory. In C, operations on shared data, including pointers, take precisely the same form as operations on non-shared data. Sharing at all levels is supported seamlessly---InterWeave can accommodate hardware coherence and consistency within multiprocessors (level-1 sharing), software distributed shared memory (SDSM) within tightly coupled clusters (level-2 sharing), and version-based coherence and consistency across the Internet (level-3 sharing). Application-specific knowledge of minimal coherence requirements is used to minimize communication. Consistency information is maintained in a manner that allows scaling to large amounts of shared data. pp We discuss the implementation of InterWeave in some detail, with a particular emphasis on memory management; coherence and consistency; and communication and heterogeneity. We then evaluate the performance and usability of the system. Anecdotal evidence suggests that the InterWeave prototype significantly simplifies the construction of important distributed applications. Quantitative evidence demonstrates that it achieves this simplification at acceptably modest cost.
Warning signs of suicide among young men

When young men unexpectedly take their own lives, those close to the deceased will ask themselves whether there were any signs that might have indicated suicide in the near term. Ten young men, aged 18–30, were selected from a psychological autopsy study of suicides among individuals with no prior psychiatric treatment and no previous suicide attempts. In-depth interviews with mothers, fathers, friends, siblings and ex-partners for each suicide, as well as six suicide notes, were analysed. Guided by interpretative phenomenological analysis, we explored possible warning signs of suicide. According to these informants, the young men did not disclose any direct plans of suicide or request for help prior to their death. Rather four indirect signs, related to the psychological condition of the young men in the period prior to ending their life, emerged: (1) repeatedly pointing to the irreversibility of a mistaken decision, (2) the desperation they felt in this respect, (3) using their own death as a threat and (4) referring to death as a place to go. Talk or actions indicating suicidality, as well as worrisome indirect appeals for emotional support, should be investigated directly with the person, as appropriate responses to these signs may have the potential to save lives.
Partnership in Working with Young Offenders with Substance Misuse Problems

This article describes the quality of the partnerships between youth offending teams and substance misuse projects working with young offenders. It draws on local evaluations of 25 projects funded by the Youth Justice Board's Development Fund from 1999 to 2002. For the most part, the relationships were described in mainly positive terms but a number of areas of potential and actual conflict were identified, notably confidentiality, referral criteria and enforcement. The findings are compared with previous research on partnerships between criminal justice and voluntary agencies, which generally indicate similar advantages and tensions. To some extent, YOTs and projects were able to avoid some of the predictable tensions by careful liaison and planning. However, the speed of the tendering process and the practical complexities of setting up the projects at the same time as the YOTs themselves were coming into being made this difficult for some projects.
Stereospecificity of the Siderophore Pyochelin Outer Membrane Transporters in Fluorescent Pseudomonads*

Pyochelin (Pch) and enantio-pyochelin (EPch) are enantiomer siderophores that are produced by Pseudomonas aeruginosa and Pseudomonas fluorescens, respectively, under iron limitation. Pch promotes growth of P. aeruginosa when iron is scarce, and EPch carries out the same biological function in P. fluorescens. However, the two siderophores are unable to promote growth in the heterologous species, indicating that siderophore-mediated iron uptake is highly stereospecific. In the present work, using binding and iron uptake assays, we found that FptA, the Fe-Pch outer membrane transporter of P. aeruginosa, recognized (Kd = 2.5 ± 1.1 nm) and transported Fe-Pch but did not interact with Fe-EPch. Likewise, FetA, the Fe-EPch receptor of P. fluorescens, was specific for Fe-EPch (Kd = 3.7 ± 2.1 nm) but did not bind and transport Fe-Pch. Growth promotion experiments performed under iron-limiting conditions confirmed that FptA and FetA are highly specific for Pch and EPch, respectively. When fptA and fetA along with adjacent transport genes involved in siderophore uptake were swapped between the two bacterial species, P. aeruginosa became able to utilize Fe-EPch as an iron source, and P. fluorescens was able to grow with Fe-Pch. Docking experiments using the FptA structure and binding assays showed that the stereospecificity of Pch recognition by FptA was mostly due to the configuration of the siderophore chiral centers C4″ and C2″ and was only weakly dependent on the configuration of the C4′ carbon atom. Together, these findings increase our understanding of the stereospecific interaction between Pch and its outer membrane receptor FptA.
Text Rewriting Improves Semantic Role Labeling

Large-scale annotated corpora are a prerequisite to developing high-performance NLP systems. Such corpora are expensive to produce, limited in size, often demanding linguistic expertise. In this paper we use text rewriting as a means of increasing the amount of labeled data available for model training. Our method uses automatically extracted rewrite rules from comparable corpora and bitexts to generate multiple versions of sentences annotated with gold standard labels. We apply this idea to semantic role labeling and show that a model trained on rewritten data outperforms the state of the art on the CoNLL-2009 benchmark dataset.
Differential Genetic and Functional Markers of Second Neoplasias in Hodgkin's Disease Patients

Purpose: The mechanisms involved in the appearance of a second neoplasia in patients with Hodgkin's disease (HD) are probably related to the genomic damage induced by the treatments administered and its repair. Here, we searched for some constitutive molecular mechanisms that in a basal manner may influence the behavior of HD patients. Experimental Design: We aimed to evaluate with the Comet Assay whether baseline, induced, and unrepaired DNA damage differ between HD patients who did not develop a second neoplasia (HD-NST), HD patients who developed a second tumor (HD-ST), and healthy individuals; and to identify, through cDNA microarray hybridization, an expression signature of genes that could discriminate between the three groups. Results: Baseline, induced, and unrepaired DNA damage was higher in HD-ST than in HD-NST and higher in the second group than in healthy donors. The genomic approach revealed two sets of genes that discriminated between healthy subjects and patients and between the three sets of individuals. Hsp40, RAD50, TPMT, Rap2a, E2F2, EPHX2, TBX21, and BATF were validated by reverse transcription-PCR. Conclusions: Functional and genomic techniques revealed that alterations in cell cycle, repair, detoxification, and stress response pathways could be involved in the development of HD and in the occurrence of a primary second neoplasia in these patients. Both approaches may be useful as biological markers in the clinical setting.
Are human-computer interaction design patterns really used?

This paper describes the outcoming of an online survey which focuses on the usage of Human-Computer Interaction (HCI) design patterns. The results should clarify if HCI patterns are currently used in academic and especially in industrial environments. Furthermore, we want to investigate the shortcomings of the design pattern concept from the users point of view. The results are incorporated in the design of an formalized HCI design pattern structure.
Involvement of Children With Autism Spectrum Disorder (ASD) in the Child Protection System

The present study provides information about children with autism spectrum disorder (ASD) who are involved in the child protection system in a large, Midwestern state. Findings revealed that children with ASD (and children with other disabilities) were more likely to receive services from the child protection system (CPS) than children without disabilities. Children with ASD in CPS were more likely to be elementary school-age (6–10 years) and Caucasian than other children involved in CPS. Children diagnosed with ASD and other disabilities were significantly overrepresented for physical abuse as the primary reason for involvement in CPS. Parental mental health issues were more evident than was expected for families of children with ASD (17%) as compared with children diagnosed with other disabilities (10%) and children not diagnosed with any disability (10%). The implications of these findings as they relate to interventions for children with ASD in CPS are discussed.
Hopf's Lemma and two dimensional domains with corners

Let IR 2 be a b ounded domain that is smooth except for a nite number of corners. The aim of this paper is to obtain conditions such that the solution of the Poisson problem ;u = f 0 in (f 6 = 0), with zero Dirichlet boundary condition, behaves similarly at the boundary as does the rst eigenfunction 1. That is: there exist c 1 c 2 > 0 such that c 1 1 (x) u (x) c 2 1 (x) : As a consequence we can improve some results for smooth domains to domains with corners, such as: the maximum principle for an equation with a potential which is unbounded near the boundaryy the anti-maximum of Cl ement and Peletierr a Green function estimate of Zhao.
Heat-mapping: A robust approach toward perceptually consistent mesh segmentation

3D mesh segmentation is a fundamental low-level task with applications in areas as diverse as computer vision, computer-aided design, bio-informatics, and 3D medical imaging. A perceptually consistent mesh segmentation (PCMS), as defined in this paper is one that satisfies 1) in-variance to isometric transformation of the underlying surface, 2) robust to the perturbations of the surface, 3) robustness to numerical noise on the surface, and 4) close conformation to human perception. We exploit the intelligence of the heat as a global structure-aware message on a meshed surface and develop a robust PCMS scheme, called Heat-Mapping based on the heat kernel. There are three main steps in Heat-Mapping. First, the number of the segments is estimated based on the analysis of the behavior of the Laplacian spectrum. Second, the heat center, which is defined as the most representative vertex on each segment, is discovered by a proposed heat center hunting algorithm. Third, a heat center driven segmentation scheme reveals the PCMS with a high consistency towards human perception. Extensive experimental results on various types of models verify the performance of Heat-Mapping with respect to the consistent segmentation of articulated bodies, the topological changes, and various levels of numerical noise.
Passive radar via LTE signals of opportunity

Passive radars relying on signals of opportunity enable new applications based on stealth tracking of targets without the need of radar signals emissions. Long term evolution (LTE) base stations employing orthogonal frequency division multiplexing (OFDM) signals are excellent candidates as illuminators of opportunity thanks to their wide availability. The tracking accuracy of such passive radars depends on prior knowledge (e.g., the wireless environment) and signal processing (e.g., clutter mitigation and tracking algorithm). This paper proposes passive radar systems exploiting LTE base stations as illuminators of opportunity to detect and track moving targets in a monitored environment. We analyze such systems based on a Bayesian framework for detection of moving targets and estimation of their position and velocity. A case study accounting for the LTE extended pedestrian model is presented, with various settings in terms of network configuration, wireless propagation, and signal processing.
Assessment of in vitro cytotoxicity and in vivo antitumor activity of Sphaeranthus amaranthoides burm.f

Background: A number of plants have been used in Indian system of medicine such as ayurveda, unani and siddha, but most of these plants were not explored properly. Sphaeranthus amaranthoides (SA) Burm.f. , is one such plant used as an energizer in siddha. Objective: To evaluate the anticancer effect of chloroform extract of the whole plant of SA Burm.f. against Ehrlich ascites carcinoma bearing Swiss albino mice. Materials and Methods: The anticancer effect of chloroform extract was investigated in Swiss albino mice bearing Ehrlich ascites carcinoma at two different dose levels. Acute toxicity studies were also performed to determine the safety of the extract. Mice injected with Ehrlich ascites carcinoma cells were treated with the extract of doses 200 and 400 mg/kg body weight and standard 5-fluorouracil 20 mg/kg body weight for 15 consecutive days. Animals were sacrificed on day 15 for determination of anticancer activity by evaluating tumor volume, nonviable and viable tumor cell count and hematological parameters. Results: Mice treated with the extract showed a significant decrease in tumor volume and viable cell count and an increase in nonviable cell count and mean survival time. The hematological parameters were also found to be restored to a normal level. Conclusion: The results indicate that the chloroform extract was producing anticancer activity comparable with that of the standard 5-fluorouracil.
An Adaptive-Filter-Based Torque-Ripple Minimization of a Fuzzy-Logic Controller for Speed Control of IPM Motor Drives

This paper presents an adaptive-filter-based torque-ripple minimization (TRM) of a fuzzy-logic controller (FLC) for speed control of an interior permanent magnet (IPM) motor drive. A simple and effective first-order digital infinite impulse response filter is utilized to reduce the torque ripples introduced by the FLC. The gain of the filter is adapted online based on the magnitude of the torque ripple. The optimal position of the filter in the complete drive is also determined for effective TRM. The various sources of torque pulsations in a practical electric-machine drive are described. The main causes of the torque ripple in an FLC are also explained. A simulation model for closed vector control of an FLC-based IPM motor drive incorporating the proposed TRM technique is developed in Matlab/Simulink. The complete drive is also experimentally implemented using digital signal processor board DS1102 for a laboratory 1-hp IPM motor. The effectiveness of the proposed technique is investigated, both in simulation and experiment, at different operating conditions. It is found that the performance of the FLC-based IPM drive is improved significantly with the proposed TRM technique.
Environmental Risks in the News: Issues, Sources, Problems, and Values

Studies of news media reports of environmental risks generally have observed that environmental news tends to be dramatic and ambiguous with little information that would help the public understand the risks that exist in communities. This analysis was designed to identify differences between environmental news stories that report risks with those that do not. The sample of 841 news stories was drawn from 12,000 stories published between 1 September 1997 and 31 August 1998 in 93 Pennsylvania daily newspapers. Nearly 60% of the news stories and releases did not mention risk. The findings suggest that the environmental issues and the environmental values supporting those issues predicted whether a news story would report risks. Sources, problem definitions, and traditional news values were less useful in differentiating risk from non-risk news stories and releases. The stories provided limited information that would facilitate public understanding of environmental risks.
Imagery and Motor Processes — When Are They Connected? The Mental Rotation of Body Parts in Development

Motor influences on the mental transformation of body parts have been observed in both children and adults. Previous findings indicated that these influences were more pronounced in children than in adults, suggesting a stronger link between motor processes and imagery in children. The present series of two experiments casts doubt on the general validity of such an interpretation. Kindergartners' (aged 5–6 years), first graders' (aged 7 years), and adults' performance in the mental rotation of pictures of body parts was monitored for influences of internal representations of motor constraints (motor effect). In both experiments, evidence for mental rotation was obtained for each group. Unexpectedly, kindergarten boys made significantly more errors than kindergarten girls. A motor effect was only found in the second experiment, where it was least pronounced in the youngest age group. Our results suggest that mental transformations of body parts do not necessarily involve motor processes and that embodiment may become stronger with development rather than weaker with certain tasks.
Analysis and Control of Aircraft Longitudinal Dynamics with Large Flight Envelopes

The paper contributes towards the development of a unified control approach for longitudinal aircraft dynamics with large flight envelopes. Prior to the control design, we analyze the existence and the uniqueness of the equilibrium orientation along a reference velocity. We show that shape symmetries and aerodynamic stall phenomena imply the existence of the equilibrium orientation irrespective of the reference velocity. The equilibrium orientation, however, is not in general unique, and this may trigger an aircraft loss-of-control for specific reference velocities. Conditions that ensure the local and the global uniqueness of the equilibrium orientation are stated. We show that the uniqueness of the equilibrium orientation is intimately related to the so-called spherical equivalency, i.e. the existence of a thrust change of variable rendering the direction of the transformed external force independent of the vehicle's orientation, as in the case of spherical shapes. Once this transformation is applied, control laws for reference velocities can be designed. These laws extend the so-called vectored--thrust control paradigm %developed for systems subject to orientation-independent external forces, e.g. spherical shapes, to the case of generic body shapes subject to steady aerodynamics.
Staff Members’ Ideas about Visitors’ Learning at Science and Technology Centres

This study investigates staff members’ ideas and assumptions about visitors’ learning at science and technology centres. It also aims to explore in what ways their reasoning intersect with existing theories about learning within the field of science and technology centre research. The results of the study reveal that the staff members allude to learning processes differently by distinguishing organized from non‐organized learning, theoretical learning from practical hands‐on learning, and serious from non‐serious learning. According to most of the staff members, these also conclude with different learning outcomes. Further, a majority of the staff members state that they do not have any scientific knowledge about learning despite the fact that they work with the construction of new exhibitions. When discussing visitors’ learning, the staff members instead refer to personal experiences, professional experiences, professional education, and external references. When it comes to how they reason about the natural scientific content, nearly all express that they use references from the natural science community and researchers’ knowledge. The article moreover discusses in what ways a socio‐cultural approach may be used in order to understand how learning arises when visitors interact with exhibits.
Believing and Belonging in Europe: Cross-National Comparisons of Longitudinal Trends (1981-2007) and Determinants

This paper investigates (trends and determinants of) individual combinations of religious believing and belonging in Europe from a cross-national and longitudinal perspective. Individual level data for the period 1981-2007 in 42 countries derived from the European Values Survey and the European Social Survey are harmonised and enriched with contextual characteristics, constituting a more comprehensive data base for Europe than any previous research. Complementary hypotheses from modernization and market theories are derived systematically and tested rigorously.We find differential trends. In western societies, the popularity of secularity and consistent religiosity has persisted. In former communist societies, the popularity of consistent religiosity has increased whereas secularity has decreased. In both western and former communist societies, solitary religiosity has been a clear yet small phenomenon, somewhat increasing in western societies and somewhat decreasing in former communist societies. A crucial hypothesis derived from modernization theories, stating that financial and social security would decrease consistent religiosity, is empirically supported.