Miracle-dz/UniFAR-FTUs huggingface dataset:
Convergence and Density Evolution of a Low-Complexity MIMO Detector based on Forward-Backward Recursion over a Ring

Convergence and density evolution of a low com- plexity, iterative MIMO detection based on belief propagation (BP) over a ring-type pair-wise graph are presented in this paper. The detection algorithm to be considered is effectively a forward- backward recursion and was originally proposed in (13), where the link level performance and the convergence for Gaussian input were analyzed. Presented here are the convergence proof for discrete alphabet and the density evolution framework for binary input to give an asymptotic performance in terms of average SINR and bit error rate (BER) without channel coding. The BER curve obtained via density evolution shows a good match with simulation results, verifying the effectiveness of the density evolution analysis and the performance of the detection algorithm. Index Terms—MIMO detection, Belief propagation, Density evolution, Pair-wise graphs, Forward-backward recursion.
The legal implications of dementia in the workplace: establishing a cross-disciplinary research agenda

ABSTRACT Dementia is a growing issue in the United Kingdom (UK) with over 800,000 people affected. Of these people, in excess of 40,000 are aged under 65 years. Thus, a significant number of individuals may be experiencing symptoms of dementia while in employment. In addition, as working lives extend, the potential impact of dementia on the workplace could be substantial. However, to date, there has been little research on experiences of dementia in the workplace. The research that exists highlights the lack of support for workers with dementia. Dementia may be considered to be a disability under the Equality Act 2010. Therefore, the legislation potentially provides a framework for individuals to request that their employer make reasonable adjustments to support their continued employment. International human rights law is potentially another tool that could be utilised to obtain necessary adjustments. This paper argues that in developing the evidence base on workplace experiences of dementia, it is important that the legal framework be considered. This paper reviews the existing literature on dementia in the workplace and embeds this in the legislative framework in order to establish a cross-disciplinary research agenda. While the paper focuses on the UK legal context, the argument presented in the paper is still relevant to other national contexts.
An RNS based reconfigurable FIR filter design using shift and add approach

In this work, an efficient finite impulse response (FIR) filter using Residue Number System (RNS) is proposed. The chosen moduli set offers the advantage of shift and add approach. The proposed filter architecture is compared with an earlier proposed version of reconfigurable RNS FIR filter. The filters are synthesized using Cadence RTL compiler in UMC 90 nm technology. The performance of the filters are compared in terms of Area (A), Power (P), and Delay (T). The results show that the proposed architecture offers significant improvement in terms of area, delay and area-delay product(AT). Proposed approach is also verified functionally using Altera DSP Builder.
National identification and intergroup attitudes of Chinese youth towards Americans, Japanese, and South Koreans

ABSTRACT The study explored the strength of national identification and intergroup attitudes of Chinese youth (n = 591, aged 12–15) toward the Chinese, the Americans, the Japanese, and the South Koreans. The participants were asked to fill in a questionnaire and write down reasons why they ‘like’ or ‘dislike’ the four groups. The results showed a consistency in in-group favoritism. Gender and age were both related to Chinese youths’ national identifications and their national intergroup attitudes. Confucian ethics, media influence and historical complex were identified as main factors that may contribute to their attitudes toward the four groups.
Dickkopf‐3 is regulated by the MYCN‐induced miR‐17‐92 cluster in neuroblastoma

Neuroblastoma (NB) is a paediatric tumour with a remarkable diverse clinical behaviour. Approximately half of the high stage aggressive tumours are characterized by MYCN gene amplification but our understanding of the role of MYCN in NB oncogenesis is incomplete. Previous studies have shown that MYCN expression is inversely correlated with expression of Dickkopf‐3 (DKK3), a gene encoding an extracellular protein with presumed tumour suppressor activity, but direct MYCN regulation of DKK3 was excluded leaving the mechanism of regulation unexplained. Given the recently established role of MYCN‐regulated miRNAs in downregulation of protein‐coding genes and predicted seeds for miR‐17‐92 cluster members within the DKK3 3′UTR, we hypothesized that this mechanism would act in MYCN regulation of DKK3. To investigate this, we used a validated miR‐17‐92‐inducible cellular system and could demonstrate robust downregulation of DKK3 mRNA and protein levels upon miR‐17‐92 overexpression. Next, two of the three predicted miRNAs, miR‐19b and miR‐92a, were shown to lower DKK3 protein levels, in addition to measurable DKK3 mRNA knock‐down by miR‐92a. Direct interaction between miR‐19b or miR‐92a and the 3′UTR of DKK3 was validated using luciferase reporter assays. In conclusion, this study demonstrates that the MYCN‐induced downregulation of DKK3 results from direct upregulation of miR‐17‐92 components effecting both DKK3 mRNA stability and translation which further contributes to the pleiotropic oncogenic effect of elevated MYCN levels. The strict MYCN‐mediated regulation of DKK3 is suggestive for an important downstream function of the MYCN protein and thus warrants further investigations to unravel the role of DKK3 in NB.
Orientation Formed by a Spot's Trajectory: A Two-Dimensional Population Approach in Primary Visual Cortex

There exist a large number of visual illusions indicating that perception differs from pure representation of physical input. For example, a spot of light can be characterized by its position, but it does not contribute any information about orientation. However, when moved fast enough, a continuous streak along its trajectory is perceived that helps to determine the orientation of the movement path. The question arises whether the processing of the trajectory and its orientation are simultaneously represented in the primary visual cortex. Here I show that decoding neural population activity within a two-dimensional parameter space represents both (1) physical input given by the actual position of the moving spot and (2) orientation. This latter parameter has no physical counterpart in the stimulus but must be actively formed by spatiotemporal integration of the spot's trajectory.
Kinematic modeling and singularity treatment of steerable wheeled mobile robots with joint acceleration limits

Non-holonomic omnidirectional mobile robots have higher load carrying capacity than their holonomic counterparts. Once the steer joint configuration is initialized, they can perform arbitrarily complex three-dimensional trajectories in the plane of motion and, as such, are more suitable for industrial contexts. However, their kinematic model presents representational and structural singularities, solutions to which must respect actuator performance limits. Recent research efforts have provided either simple restricting of the velocity space (among which few considered hardware limits) or complex non-restricting (no hardware limits considered) solutions. Most of these efforts are providing solutions at the kinematic control level. Instead, here we propose both a representational singularity free kinematic model, and a simple numeric treatment for the kinematic singularity. We further provide a method to tune the latter, to respect the actuator acceleration limits. Thanks to its steer rate damping behavior, the method can be further extended, to respect joint limits. Another benefit is the treatment of the singularity at the level of the kinematic model, which enhances real time capabilities. The developed method has been tested successfully on the Neobotix-MPO700 mobile robot and shown superior results as compared to the embedded controller.
Parsing the Internal Structure of Words: A New Paradigm for Chinese Word Segmentation

Lots of Chinese characters are very productive in that they can form many structured words either as prefixes or as suffixes. Previous research in Chinese word segmentation mainly focused on identifying only the word boundaries without considering the rich internal structures of many words. In this paper we argue that this is unsatisfying in many ways, both practically and theoretically. Instead, we propose that word structures should be recovered in morphological analysis. An elegant approach for doing this is given and the result is shown to be promising enough for encouraging further effort in this direction. Our probability model is trained with the Penn Chinese Treebank and actually is able to parse both word and phrase structures in a unified way.
How Do I-Deals Influence Client Satisfaction? The Role of Exhaustion, Collective Commitment, and Age Diversity

This paper introduces a multilevel perspective on the relationships of idiosyncratic deals (i-deals) with organizational outcomes (i.e., client satisfaction) and investigates how and under which conditions these relationships manifest. On the basis of contagion theory, we proposed that the positive effects of i-deals will spill over within organizational units (indicated by reduced emotional exhaustion and enhanced collective commitment), which leads to increased customer satisfaction. Moreover, we postulated that the effects of i-deals would be more prominent in units with high age diversity, as i-deals are more important in units where people’s work-related needs are more heterogeneous due to the higher diversity in employee age. A study among 19,780 employees and 17,500 clients of a German public service organization showed support for the contagion model and that i-deals were negatively related to individual emotional exhaustion and subsequently positively related to collective commitment within units and client satisfaction measured 6 months later. Emotional exhaustion and collective commitment mediated the relationships between i-deals and client satisfaction. Finally, we found that the relationships between i-deals and emotional exhaustion / client satisfaction were more strongly negative in units with high age diversity, rather than in units with low age diversity, indicating the benefits of i-deals within units with high age diversity to reduce emotional exhaustion and enhance client satisfaction.
A Fractal Analogy Approach to the Raven's Test of Intelligence

We present a fractal technique for addressing geometric analogy problems from the Raven's Standard Progressive Matrices test of general intelligence. In this method, an image is represented fractally, capturing its inherent self-similarity. We apply these fractal representations to problems from the Raven's test, and show how these representations afford a new method for solving complex geometric analogy problems. We present results using the fractal algorithm on all 60 problems from the Standard Progressive Matrices version of the Raven's test.
Prosodic awareness and children’s multisyllabic word reading

Abstract Prosodic awareness (the rhythmic patterning of speech) accounts for unique variance in reading development. However, studies have thus far focused on early readers and utilised literacy measures which fail to distinguish between monosyllabic and multisyllabic words. The current study investigated the factors that are specifically associated with multisyllabic word reading in a sample of 50 children aged between 7 and 8 years. Prosodic awareness was the strongest predictor of multisyllabic word reading accuracy, after controlling for phoneme awareness, morphological awareness, vocabulary and short-term memory. Children also made surprisingly few phonemic errors while, in contrast, errors of stress assignment were commonplace. Prosodic awareness was also the strongest predictor of stress placement errors, although this finding was not significant. Prosodic skills may play an increasingly important role in literacy performance as children encounter more complex reading materials. Once phoneme-level skills are mastered, prosodic awareness is arguably the strongest predictor of single word reading.
A Unified Theory of Underreaction, Momentum Trading and Overreaction in Asset Markets

We model a market populated by two groups of boundedly rational agents: "newswatchers" and "momentum traders. " Each newswatcher observes some private information, but fails to extract other newswatchers' information from prices. If information diffuses gradually across the population, prices underreact in the short run. The underreaction means that the momentum traders can profit by trendchasing. However, if they can only implement simple (i.e., univariate) strategies, their attempts at arbitrage must inevitably lead to overreaction at long horizons. In addition to providing a unified account of under- and overreactions, the model generates several other distinctive implications.
Specificity Neurotropism Independent of Coreceptor from Brain and Lymphoid Tissues Predicts Immunodeficiency Virus Type 1 Isolates Macrophage Tropism of Human

10.1128/JVI.75. 21.10073-10089.2001. 2001, 75(21):10073. DOI: J. Virol. Wolinsky and Dana Gabuzda Schols, Erik De Clercq, Kevin Kunstman, Steven M. Norbert Bannert, Keith Crawford, Hui Wang, Dominique Ritola, Ronald Swanstrom, Chris J. Birch, Jeanne E. Bell, Paul R. Gorry, Greg Bristol, Jerome A. Zack, Kimberly Specificity Neurotropism Independent of Coreceptor from Brain and Lymphoid Tissues Predicts Immunodeficiency Virus Type 1 Isolates Macrophage Tropism of Human
Expression and Functional Roles of Kv7/KCNQ/M-Channels in Rat Medial Entorhinal Cortex Layer II Stellate Cells

The medial entorhinal cortex (MEC) is important for spatial navigation and memory. Stellate cells (SCs) of MEC layer II provide major input to the hippocampus, and are thought to be the neuronal correlate of the grid cells. Their electrophysiological properties have been used to explain grid field formation. However, little is known about the functional roles of potassium channels in SCs. M-current is a slowly activating potassium current, active at subthreshold potentials. Although some studies have suggested that Kv7/M-channels may affect subthreshold resonance in SCs, others have found no Kv7/M-current in these cells, so the expression and roles of Kv7/M-channels in SCs are still debated. Using whole-cell voltage-clamp, we have identified a typical M-current with pharmacological properties characteristic of Kv7/M-channels in rat MEC SCs. Current-clamp experiments showed that the specific Kv7/M-channel blocker XE991 increased SCs excitability, and reduced spike frequency adaptation. Our results demonstrate that Kv7/M-channels are expressed in SCs and contribute substantially to regulation of excitability in these cells.
Service oriented architecture for VoIP conferencing

Most current Voice/Video over IP (VoIP) systems are either highly centralized or dependent on IP multicast. We propose the Global Multimedia Collaboration System as a scalable, integrated and service‐oriented VoIP conferencing system, based on a SOAP‐based collaboration framework and advanced messaging oriented middleware. This system can provide media and session services to heterogeneous endpoints including H.323, SIP, Access Grid, and RealPlayer as well as accommodating diverse clients such as cellular phones. We suggest that our approach opens up new opportunities for extending classic VoIP systems by using these new technologies designed for scalable Internet based service‐oriented computing. Copyright © 2006 John Wiley & Sons, Ltd.
Peer-production system or collaborative ontology engineering effort: what is Wikidata?

Wikidata promises to reduce factual inconsistencies across all Wikipedia language versions. It will enable dynamic data reuse and complex fact queries within the world's largest knowledge database. Studies of the existing participation patterns that emerge in Wikidata are only just beginning. What delineates most of the contributions in the system has not yet been investigated. Is it an inheritance from the Wikipedia peer-production system or the proximity of tasks in Wikidata that have been studied in collaborative ontology engineering? As a first step to answering this question, we performed a cluster analysis of participants' content editing activities. This allowed us to blend our results with typical roles found in peer-production and collaborative ontology engineering projects. Our results suggest very specialised contributions from a majority of users. Only a minority, which is the most active group, participate all over the project. These users are particularly responsible for developing the conceptual knowledge of Wikidata. We show the alignment of existing algorithmic participation patterns with these human patterns of participation. In summary, our results suggest that Wikidata rather supports peer-production activities caused by its current focus on data collection. We hope that our study informs future analyses and developments and, as a result, allows us to build better tools to support contributors in peer-production-based ontology engineering.
Metastable supergravity vacua with F and D supersymmetry breaking

We study the conditions under which a generic supergravity model involving chiral and vector multiplets can admit viable metastable vacua with spontaneously broken supersymmetry and realistic cosmological constant. To do so, we impose that on the vacuum the scalar potential and all its first derivatives vanish, and derive a necessary condition for the matrix of its second derivatives to be positive definite. We study then the constraints set by the combination of the flatness condition needed for the tuning of the cosmological constant and the stability condition that is necessary to avoid unstable modes. We find that the existence of such a viable vacuum implies a condition involving the curvature tensor for the scalar geometry and the charge and mass matrices for the vector fields. Moreover, for given curvature, charges and masses satisfying this constraint, the vector of F and D auxiliary fields defining the Goldstino direction is constrained to lie within a certain domain. The effect of vector multiplets relative to chiral multiplets is maximal when the masses of the vector fields are comparable to the gravitino mass. When the masses are instead much larger or much smaller than the gravitino mass, the effect becomes small and translates into a correction to the effective curvature. We finally apply our results to some simple classes of examples, to illustrate their relevance.
A complete carrier-based non-charge-sheet analytic theory for nano-scale undoped surrounding-gate MOSFETs

A complete carrier-based non-charge-sheet analytic theory for the nano-scale undoped surrounding-gate MOSFETs is presented in this paper based on the basic device physics. The formulation is based on the Poisson's equation to solve directly for the mobile carrier-the electron concentration. Therefore, the distribution of the potential, the field and the charge density in the channel away from the surface is also expressed in terms of the carrier concentration, giving a carrier-based non-charge-sheet model for nano-scale undoped surrounding-gate MOSFETs including the short-channel effects. The formulated theory has an analytic form that does not need to solve the transcendent equation as in the conventional surface potential model or classical Pao-Sah formulation. As a result, the theory can analytically predict the analytical IV and CV characteristics of the undoped surrounding-gate MOSFETs. The validity of the theory results has also been demonstrated by extensive comparison with 3D numerical simulation
Homology-Dependent Maternal Inhibition of Developmental Excision of Internal Eliminated Sequences inParamecium tetraurelia

ABSTRACT Thousands of single-copy internal eliminated sequences (IESs) are excised from the germ line genome of ciliates during development of the polygenomic somatic macronucleus, following sexual events.Paramecium IESs are short, noncoding elements that frequently interrupt coding sequences. No absolutely conserved sequence element, other than flanking 5′-TA-3′ direct repeats, has been identified among sequenced IESs; the mechanisms of their specific recognition and precise elimination are unknown. Previous work has revealed the existence of an epigenetic control of excision. It was shown that the presence of one IES in the vegetative macronucleus results in a specific inhibition of the excision of the same element during the development of a new macronucleus, in the following sexual generation. We have assessed the generality and sequence specificity of this transnuclear maternal control by studying the effects of macronuclear transformation with 13 different IESs. We show that at least five of them can be maintained in the new macronuclear genome; sequence specificity is complete both between genes and between different IESs in the same gene. In all cases, the degree of excision inhibition correlates with the copy number of the maternal IES, but each IES shows a characteristic inhibition efficiency. Short internal IES-like segments were found to be excised from two of the IESs when excision between normal boundaries was inhibited. Available data suggest that the sequence specificity of these maternal effects is mediated by pairing interactions between homologous nucleic acids.
Domestic tourists to Sardinia: motivation, overall attitude, attachment, and behavioural intentions

Abstract Using place attachment theory, we test a conceptual model that postulates tourist motivation, overall attitude, and place attachment as significant predictors of tourists’ intentions to recommend a destination. Existing studies fail to evaluate the influence of both motivation and overall attitude on place attachment. The conceptual model is tested on a sample of 275 domestic visitors to the island of Sardinia, Italy. The results show that motives such as socialization, novelty and learning, and escape and relaxation have positive relationships with overall attitude and place attachment. Both overall attitude and place attachment are significant predictors of intention to recommend. The findings have several theoretical and managerial implications for destination marketing and the development of place attachment.
A retrospective study of 171 patients with oral lichen planus in the East Bohemia - Czech Republic – single center experience

Objectives: Oral lichen planus is chronic inflammatory disease with a high prevalence in the population. This study describes the epidemiological and clinical characteristics of group of patients with oral lichen planus in the Czech Republic. Material and Methods: Data was taken from the medical records of 171 patients referred to the Oral Medicine Unit at the University Hospital in Hradec Králové with histologically confirmed clinical diagnosis of oral lichen planus in the period 2003 – 2013. The data were retrospectively reviewed. Results: Of the 171 patients, 116 (67.8%) were women and 55 (32.2%) were men. The mean age was 55.2 ± 12.4 years (range of 85.0 – 20.9). The reticular form was the most frequent 93.6% (160 pts.), desquamative gingivitis was 12.9% (22). The buccal mucosa was the site most affected 89.5% (153 pts.). The lesions were asymptomatic in 52 patients (30.4%). Extraoral lesions were observed in 20.5% (35 pts.) of the patients, skin involvement was in 16.4% (28 pts.). Smokers were 29 patients. Local treatment used 116 (67.8%), only 6 patients used systemic short tome corticoid therapy. No evidence between OLP and malignant transformation was observed. Conclusions: This retrospective study show very similar profile and clinical features of the patients with OLP as in other studies. Key words:Oral lichen planus, clinical features, extraoral manifestation.