Miracle-dz/UniFAR-FTUs huggingface dataset:
Quotients of orders in cyclic algebras and space-time codes

Let $F$ be a number field with ring of integers $\Oc_F$ and $\Dc$ a division $F$-algebra with a maximal cyclic subfield $K$. We study rings occurring as quotients of a natural $\Oc_F$-order $\Lambda$ in $\Dc$ by two-sided ideals. We reduce the problem to studying the ideal structure of $\Lambda/\qf^s\Lambda$, where $\qf$ is a prime ideal in $\Oc_F$, $s\geq 1$. We study the case where $\qf$ remains unramified in $K$, both when $s=1$ and $s>1$. This work is motivated by its applications to space-time coded modulation.
A 10-Gbit/s Wireless Communication Link Using 16-QAM Modulation in 140-GHz Band

This paper describes a 140-GHz wireless link whose maximum transmission data rate is 10 Gbit/s. A sub-harmonic mixer and multiplier based on Schottky barrier diodes, a waveguide H ladder bandpass filter, a Cassegrain antenna, and other components have been developed to construct a high-performance transmitting and receiving front end. 16 quadrature amplitude modulation has been adopted to improve the spectrum efficiency to 2.86-bit/s/Hz. A 32-way parallel demodulation architecture based on frequency-domain implementation of the matched filter and timing phase correction is proposed. An adaptive blind equalization algorithm is also realized to enhance the tolerance for channel distortion. The modulated signal is centered at 140.3 GHz with -5-dBm output power. This link succeeded in transmission of a 10-Gbit/s signal over a 1.5-km distance with a bit error rate of 1e-6 in non-real-time mode. The measured 99.99% power bandwidth of the 10-Gbit/s signal is 3.6 GHz. The lowest acceptable signal noise rate per bit (Eb/N0) is 15 dB. This link also transmitted a 2-Gbit/s real-time signal with lowest BER = 1.80e -11.
Why You Think Milan is Larger than Modena: Neural Correlates of the Recognition Heuristic

When ranking two alternatives by some criteria and only one of the alternatives is recognized, participants overwhelmingly adopt the strategy, termed the recognition heuristic (RH), of choosing the recognized alternative. Understanding the neural correlates underlying decisions that follow the RH could help determine whether people make judgments about the RH's applicability or simply choose the recognized alternative. We measured brain activity by using functional magnetic resonance imaging while participants indicated which of two cities they thought was larger (Experiment 1) or which city they recognized (Experiment 2). In Experiment 1, increased activation was observed within the anterior frontomedian cortex (aFMC), precuneus, and retrosplenial cortex when participants followed the RH compared to when they did not. Experiment 2 revealed that RH decisional processes cannot be reduced to recognition memory processes. As the aFMC has previously been associated with self-referential judgments, we conclude that RH decisional processes involve an assessment about the applicability of the RH.
Effects of intertrochanteric varus osteotomy on Norberg angle and percent coverage of the femoral head in displastic dogs

This study was conducted to assess the effects of femoral varus osteotomy on joint congruency in dogs affected by early stage hip dysplasia. Preoperative planning to move the femoral head within the acetabulum was carried out. Varisation of the femoral inclination angle (fIA) was achieved by Intertrochanteric Osteotomy (ITO). Norberg angle (NA), percent coverage (PC) of the femoral head by the acetabulum and fIA was measured from preoperative, immediate postoperative and first and second recheck radiographs of seven dogs that underwent an ITO (joint n = 9). There was significant (p < 0.05) improvement of both NA and PC in all patients as indicated by a change in the mean ± standard deviation of 78.9° ± 7.5 and 36.9% ± 5.2 to 92.2° ± 6.7 and 50.6% ± 8.3, respectively. No significant difference (p < 0.05) was observed between the values of the planned femoral inclination angle (pfIA) of the femur and the effective femoral inclination angle (efIA) obtained after surgery (115.9° ± 2.5 and 111.3° ± 6.4, respectively). These findings could encourage the use of ITO in veterinary practice and indicate that intertrochanteric varus osteotomy should be re-considered for the treatment of early stage hip dysplasia in dogs with radiological signs of joint incongruency.
Konrad-zuse-zentrum F ¨ Ur Informationstechnik Berlin Optimization Methods for Umts Radio Network Planning Optimization Methods for Umts Radio Network Planning

The UMTS radio network planning problem poses the challenge of designing a cost-effective network that provides users with sufficient coverage and capacity. We describe an optimization model for this problem that is based on comprehensive planning data of the EU project MOMENTUM. We present heuristic mathematical methods for this realistic model, including computational results.
Similar and Distinct Properties of MUPP1 and Patj, Two Homologous PDZ Domain-Containing Tight-Junction Proteins

ABSTRACT MUPP1 and Patj are both composed of an L27 domain and multiple PDZ domains (13 and 10 domains, respectively) and are localized to tight junctions (TJs) in epithelial cells. Although Patj is known to be responsible for the organization of TJs and epithelial polarity, characterization of MUPP1 is lacking. In this study, we found that MUPP1 and Patj share several binding partners, including JAM1, ZO-3, Pals1, Par6, and nectins (cell-cell adhesion molecules at adherens junctions). MUPP1 and Patj exhibited similar subcellular distributions, and the mechanisms with which they localize to TJs also appear to overlap. Despite these similarities, functional studies have revealed that Patj is indispensable for the establishment of TJs and epithelial polarization, whereas MUPP1 is not. Thus, although MUPP1 and Patj share several molecular properties, their functions are entirely different. We present evidence that the signaling mediated by Pals1, which has a higher affinity for Patj than for MUPP1 and is involved in the activation of the Par6-aPKC complex, is of principal importance for the function of Patj in epithelial cells.
Imagining their Future Selves: Children's Attitudes to Older People and their Expectations of Life at Age 70

Studies eliciting the views of children on ageing are rare, particularly those that focus on imagining a future self as an ‘old’ person and how this might be linked to current attitudes to older people. To address this gap, 2365 children participated in an online survey which included questions on ageing. Findings suggest that children who hold negative views about old people visualise poorer outcomes for themselves at age 70. Implications of the findings are discussed in the context of an ageing population and the need to develop strategies to prevent the formation of prejudices against older people from an early age.
Developmental trajectories of parents and infants from conception to 3 months postpartum: The singularity of twins

Background: Twin birth rates have increased worldwide in the last decades. Compared with the well-known health risks associated with twin pregnancy, relatively little is known about the psychological adjustment of couples during the transition to twin parenthood and twins’ early development. Aims: 1) To describe the trajectories of parents’ psychological adjustment during the transition to twin parenthood; 2) to determine whether parents of twins and parents of singletons differ on psychological adjustment trajectories; 3) to investigate whether psychological adjustment trajectories vary as a function of mode of conception and parent gender; 4) to examine twins’ fetal development (fetal movements and heart rate) and to investigate factors associated with it. Method: This prospective longitudinal study assessed 41 parent-twi-n pairs conceived spontaneously (n = 25) and after infertility treatment (n = 16) at multiple time points from the first trimester of pregnancy up to 3 months postpartum. A control sample of parents of singletons was derived from a larger longitudinal study. Parents’ psychological adjustment was assessed with self-report measures. Fetal movements were assessed from ultrasound recordings and fetal heart rate variability was assessed by computerized cardiotocography. Results: Using dyadic growth curve analyses, we found that parents of twins reported increasingly positive attitudes to pregnancy and the baby over time, a decrease in marital relationship and increasingly positive attitudes to sex from pregnancy to the postpartum period and over the postpartum period. Anxiety and depression trajectories varied as a function of type of pregnancy and mode of conception. While parents of singletons exhibited a significant
Explanatory models of mental disorders among traditional and faith healers in Ghana

ABSTRACT Traditional and alternative medicine is an integral part of the mental healthcare system of many African countries. The treatments and practices of these traditional and alternative healers will be influenced by their ideas about the causes and effects of mental disorders. With the concept of explanatory models of illness as a framework, we examined the notions of different categories of traditional and faith healers about mental disorders. Using case vignettes, we conducted interviews with 36 participants to explore their beliefs about the causes, course and effects of a serious mental disorder, a common mental disorder and a disorder driven by social circumstances. From our data, there was consensus about what constituted a serious mental disorder. However, the other disorders were not seen as mental disorders. Although there was an acknowledgement of biological and social causes of serious mental illness, the dominant view was that of supernatural causes. The most significant effect of mental illness reported was a loss of social connectedness and productivity. These models are discussed with reference to their implications for collaboration, mental health literacy efforts, as well as biomedical practice.
Common CFTR haplotypes and susceptibility to chronic pancreatitis and congenital bilateral absence of the vas deferens

CFTR mutations enhance susceptibility for idiopathic chronic pancreatitis (ICP) and congenital bilateral absence of the vas deferens (CBAVD); however, it is unknown why CFTR heterozygotes are at increased disease risk. We recently showed that common CFTR variants are associated with aberrantly spliced transcripts. Here, we genotyped for common CFTR variants and tested for associations in two ICP (ICP‐A: 126 patients, 319 controls; ICP‐B: 666 patients, 1,181 controls) and a CBAVD population (305 patients, 319 controls). Haplotype H10 (TG11‐T7‐470V) conferred protection (ICP‐A: OR 0.19, P<0.0001; ICP‐B: OR 0.78, P = 0.06; CBAVD OR 0.08, P<0.001), whereas haplotype H3 (TG10‐T7‐470M) increased disease risk (ICP‐A: OR 8.34, P = 0.003; ICP‐B: OR 1.88, P = 0.007; CBAVD: OR 5.67, P = 0.01). The risk of heterozygous CFTR mutations carriers for ICP (OR 2.44, P<0.001) and CBAVD (OR 14.73, P<0.001) was fully abrogated by the H10/H10 genotype. Similarly, ICP risk of heterozygous p.Asn34Ser SPINK1 mutation carriers (OR 10.34, P<0.001) was compensated by H10/H10. Thus, common CFTR haplotypes modulate ICP and CBAVD susceptibility alone and in heterozygous CFTR and p.Asn34Ser mutation carriers. Determination of these haplotypes helps to stratify carriers into high‐ and low‐risk subjects, providing helpful information for genetic counseling. Hum Mutat 32:1–9, 2011. © 2011 Wiley‐Liss, Inc.
The CP12 protein family: a thioredoxin-mediated metabolic switch?

CP12 is a small, redox-sensitive protein, representatives of which are found in most photosynthetic organisms, including cyanobacteria, diatoms, red and green algae, and higher plants. The only clearly defined function for CP12 in any organism is in the thioredoxin-mediated regulation of the Calvin–Benson cycle. CP12 mediates the formation of a complex between glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and phosphoribulokinase (PRK) in response to changes in light intensity. Under low light, the formation of the GAPDH/PRK/CP12 complex results in a reduction in the activity of both PRK and GAPDH and, under high light conditions, thioredoxin mediates the disassociation of the complex resulting in an increase in both GAPDH and PRK activity. Although the role of CP12 in the redox-mediated formation of the GAPDH/PRK/CP12 multiprotein complex has been clearly demonstrated, a number of studies now provide evidence that the CP12 proteins may play a wider role. In Arabidopsis thaliana CP12 is expressed in a range of tissue including roots, flowers, and seeds and antisense suppression of tobacco CP12 disrupts metabolism and impacts on growth and development. Furthermore, in addition to the higher plant genomes which encode up to three forms of CP12, analysis of cyanobacterial genomes has revealed that, not only are there multiple forms of the CP12 protein, but that in these organisms CP12 is also found fused to cystathionine-β-synthase domain containing proteins. In this review we present the latest information on the CP12 protein family and explore the possibility that CP12 proteins form part of a redox-mediated metabolic switch, allowing organisms to respond to rapid changes in the external environment.
A Simulation Environment for SCADA Security Analysis and Assessment

Simulation experiment is an important means of analyzing and assessing the security of SCADA (Supervisory Control and Data Acquisition) system, however, the existing simulation environments have some limitations in flexibility and extensibility. According to the type of industrial infrastructure and the structure of SCADA system, the abstract models of SCADA system are established, the reference architecture of SCADA system simulation environment is proposed, and the simulation environment for analyzing and assessing the security of SCADA system is designed and implemented. This simulation environment has the characteristics of extensibilities and adaptability, and integrated several components including the simulated enterprise network, OPC Client/HMI, industrial OPC server, SCADA protocol tester, SCADA RTUs, and the sensors and actuators, etc. Finally, experiment on the representative SCADA system attack scenario of has been conducted in this simulation environment to analyze and assess their security status, and the results demonstrate the effectiveness and practicability of the simulation environment.
Experiential Avoidance in Clinical and Non-Clinical Samples: AAQ-II Portuguese Version

The aim of the following paper was to adapt and validate the Portuguese version of the Acceptance and Action Questionnaire- II (AAQ-II), which measures Psychological Flexibility/Inflexibility, central components in Acceptance and Commitment Therapy. We assessed the psychometric properties of this scale in both general population and clinical samples. Exploratory Factor Analysis supported a single-factor structure with seven items and results from a Confirmatory Factor Analysis showed the goodness of fit of the model. This version also demonstrated a good level of internal consistency and good convergent and discriminant validity. Overall, the results stressed out that this Portuguese version of AAQ-II is a consistent and valid scale.
Fixed Point Theorems for Generalized Weakly Contractive Mappings in S-Metric Space

In this paper, we introduce the notion of generalized weakly contractive mappings in $ S $-metric spaces and prove the existence and uniqueness of fixed point for such mappings in complete $ S $ metric spaces. These theorems generalize many previously obtained fixed point results. An example is given to illustrate the main result.
Topology Preserving Digitization of Physical Prototypes Using Deformable Subdivision Models

Physical prototyping is an important stage of product design where designers have a chance to physically evaluate and alter digitally created surfaces. In these scenarios, designers generate a digital model, manufacture and alter the prototype as needed, and redigitize the prototype through scanning. Despite the variety of reverse engineering tools, redigitizing the prototypes into forms amenable to further digital editing remains a challenge. This is because current digitization methods cannot take advantage of the key elements of the original digital model such as the wireframe topology and surface flows. This paper presents a new reverse engineering method that augments conventional digitization with the knowledge of the original digital model’s curve topology to enhance iterative shape design activities. Our algorithm takes as input a curve network topology forming a subdivision control cage and a 3D scan of the physically modified prototype. To facilitate the digital capture of the physical modifications, our algorithm performs a series of registration, correspondence and deformation calculations to compute the new configuration of the initial control cage. The key advantage of the proposed technique is the preservation of the edge flows and initial topology while transferring surface modifications from prototypes. Our studies show that the proposed technique can be particularly useful for bridging the gap between physical and digital modeling in the early stages of product design. © 2014 ASME
Least squares based channel estimation approach and Bit Error Rate analysis of Cognitive Radio

Cognitive Radio (CR) is very essential in day-to-day life as there is a growing demand for usage of frequency spectrum for different wireless applications. Being an opportunistic communication scenario, cognitive radio performance analysis attains prime significance. Performance analysis of a cognitive radio scenario in a wireless channel is done by a well-known performance metric Bit Error Rate (BER). However, the wireless channel coefficients or channel state information (CSI) are always unknown in any practical cognitive scenario. Hence, it needs to be estimated by estimation approaches like least squares (LS), minimum mean square error (MMSE) and maximum likelihood (ML). Least squares approach of estimation of wireless channel coefficients satisfies linearity property and is simple in computation, however it produces a lesser Mean Square Error (MSE) in comparison to MMSE and ML based approaches. But MMSE and ML approaches are based on the probability density function (PDF) which generally leads to increased computational complexity to determine the estimate of the wireless channel. However, a moderate MSE performance is sufficient for performance analysis of a CR scenario due to spectrum sensing. Least squares based approach provides an estimate of the wireless channel with very less computational complexity. Hence, this paper uses LS to estimate the wireless channel coefficients. In addition bit error rate performance of a cognitive radio scenario is analyzed using the obtained LS estimate of the wireless channel. Simulation results are obtained to analyze the LS performance of CR scenario using mean square error and BER performance metric. The obtained simulation results can be used as a benchmark for analysis of cognitive radio environments.
Nonparametric semi-supervised learning of class proportions

The problem of developing binary classifiers from positive and unlabeled data is often encountered in machine learning. A common requirement in this setting is to approximate posterior probabilities of positive and negative classes for a previously unseen data point. This problem can be decomposed into two steps: (i) the development of accurate predictors that discriminate between positive and unlabeled data, and (ii) the accurate estimation of the prior probabilities of positive and negative examples. In this work we primarily focus on the latter subproblem. We study nonparametric class prior estimation and formulate this problem as an estimation of mixing proportions in two-component mixture models, given a sample from one of the components and another sample from the mixture itself. We show that estimation of mixing proportions is generally ill-defined and propose a canonical form to obtain identifiability while maintaining the flexibility to model any distribution. We use insights from this theory to elucidate the optimization surface of the class priors and propose an algorithm for estimating them. To address the problems of high-dimensional density estimation, we provide practical transformations to low-dimensional spaces that preserve class priors. Finally, we demonstrate the efficacy of our method on univariate and multivariate data.
Optimal Topology Control and Power Allocation for Minimum Energy Consumption in Consensus Networks

Consensus algorithms have generated a lot of interest due to their ability to compute globally relevant statistics by only exploiting local communications among sensors. However, when implemented over wireless sensor networks, the inherent iterative nature of consensus algorithms may cause a large energy consumption. Hence, to make consensus algorithms really appealing in sensor networks, it is necessary to minimize the energy necessary to reach a consensus, within a given accuracy. We propose a method to optimize the network topology and the power allocation over each active link in order to minimize the energy consumption. We consider two network models: a deterministic model, where the nodes are located arbitrarily but their positions are known, and a random model, where the network topology is modeled as a random geometric graph (RGG). In the first case, we show how to convert the topology optimization problem, which is inherently combinatorial, into a parametric convex problem, solvable with efficient algorithms. In the second case, we optimize the power transmitted by each node, exploiting the asymptotic distributions of the eigenvalues of the adjacency matrix of an RGG. We further show that the optimal power can be found as the solution of a convex problem. The theoretical findings are corroborated with extensive simulation results.
A Qualitative Study of Exemplary Parenting in Competitive Female Youth Team Sport

This study examined how exemplary youth sport parents support their daughters in competitive team sport. Individual interviews were first conducted with eight coaches (three women and five men). Coaches were then invited to nominate exemplary youth sport parents. Interviews were subsequently conducted with 10 nominated parents (seven mothers and three fathers). Interpretive description methodology (Thorne, 2016) was used. Results were organized around three categories: being autonomy supportive (represented by the themes of not forcing a direction, sharing goals, fostering independence, and emphasizing effort and having fun), building healthy relationships (trusting and communicating with coaches and supporting the team and club), and coping with emotional demands (assisting before competitions and monitoring emotions during and after competitions). Theoretically, the results highlight the value of autonomy-supportive parenting styles and parents’ emotional intelligence.
Distributed computing in practice: the Condor experience

Since 1984, the Condor project has enabled ordinary users to do extraordinary computing. Today, the project continues to explore the social and technical problems of cooperative computing on scales ranging from the desktop to the world‐wide computational Grid. In this paper, we provide the history and philosophy of the Condor project and describe how it has interacted with other projects and evolved along with the field of distributed computing. We outline the core components of the Condor system and describe how the technology of computing must correspond to social structures. Throughout, we reflect on the lessons of experience and chart the course travelled by research ideas as they grow into production systems. Copyright © 2005 John Wiley & Sons, Ltd.