Miracle-dz/UniFAR-FTUs huggingface dataset:
The Group Dynamics of Interorganizational Relationships

This paper examines how organizations collaborate with multiple partners, such as when they develop innovative and complex product platforms like smartphones, servers, and MRI machines that rely on technologies developed by organizations in three or more sectors. Research on multipartner alliances often treats them as a collection of independent dyads, neglecting the possibility of third-party influence and interference in dyads that can inhibit innovation. Using a multiple-case, inductive study of six groups, each composed of three organizations engaged in technology and product development in the computer industry, I examine the collaborative forms and processes that organizations use to innovate with multiple partners in groups. Groups that used the collaborative forms of independent parallel dyads or single unified triads generated mistrust and conflict that stemmed from expectations about third-party participation and overlapping roles and thus had low innovation performance and weaker ties. Other groups avoided these problems by using a dynamic collaboration process that I call “group cycling,” in which managers viewed their triad as a small group, decomposed innovative activities into a series of interlinked dyads between different pairs of partners, and managed third-party interests across time. By temporarily restricting participation to pairs, managers chose which ideas, technologies, and resources to incorporate from third parties into single dyads and ensured that the outputs of multiple dyads were combined into a broader innovative whole.
Poverty's latent effect on adiposity during childhood: evidence from a Québec birth cohort

Background Childhood poverty heightens the risk of obesity in adulthood, but the age at which this risk appears is unclear. We analysed the association between poverty trajectories with body mass index (BMI) Z-scores or the risk of being overweight or obese across four ages (6 years, 8 years, 10 years and 12 years) in childhood. Methods Data were from the 1998–2010 ‘Quebec Longitudinal Study of Child Development’ cohort (n=698). Poverty was defined using Statistics Canada's thresholds, and trajectories were characterised with a Latent Class Growth Analysis. Multivariable linear and logistic regression models adjusted for sex, whether the mother was an immigrant, maternal education and birth weight. Results Four income trajectories were identified: a reference group (stable non-poor), and 3 higher exposure categories (increasing likelihood of poverty, decreasing likelihood of poverty or stable poor). Compared with children from stable non-poor households, children from stable poor households had BMI Z-scores that were 0.39 and 0.43 larger than children from stable non-poor households at age 10 years and 12 years, respectively (p<0.05). Compared with children from stable non-poor households, children from stable poor households were 2.22, 2.34, and 3.04 times more likely to be overweight or obese at age 8 years, 10 years and 12 years, respectively (p<0.05). Conclusion A latency period for the detrimental effects of child poverty on the risk of overweight or obesity was detected. Whether the effects continue to widen with increasing duration of exposure to poverty as the children age should be investigated.
Cognitive and Noncognitive Measures as Predictors of Student Success at an Independent School

Predicting academic success is an important aspect of education, but is of particular interest for educators and admissions officers at independent schools. This study, conducted using archival data at an independent school in the Philadelphia suburbs, used hierarchical regression analysis to determine whether cognitive measures could predict student GPA, whether measures of noncognitive traits (Grit, Conscientiousness, Openness, and Emotional Intelligence) could improve the prediction of GPA, and whether cognitive skills predict to any of the noncognitive traits. The most significant finding (p < .01, f= .52) is that scores on the Wechsler scales combined with scores on noncognitive measures are good predictors of GPA. The noncognitive traits of Conscientiousness and Emotional Intelligence (as measured by the Understanding and Managing scales of the MSCEIT-YV) are the most predictive of GPA. Also of interest to those in independent schools will be that the number of years that students attend the school is a positive predictor of GPA, as well of Grit and Conscientiousness. Also of note is the negative relationship between Wechsler scores and Grit, and between Wechsler scores and Conscientiousness.
Simulation of DS-CDMA on the LOS multipath 60 GHz channel and performance with RAKE receiver

In this paper we investigate observed data of 60 Ghz channel impulse responses collected in IEMN. We first investigate the wide sense stationary and uncorrelated scatterers properties of the channel. We then develop a tapped delay line model and MC simulate a DS-CDMA transmission with a RAKE receiver. Results show the good performances of such a scheme and make DS-CDMA a good solution for high rate multi-media transmission at 60 GHz. Besides, the simulation rapidity allows to use this model for channel coding simulation.
Quantification of the expression of reference and alcohol dehydrogenase genes of some acetic acid bacteria in different growth conditions

Aims: The aim of this study was to develop a reliable system to analyse the expression of the pyrroloquinoline quinone (PQQ)–alcohol dehydrogenase (ADH) and test its ability to predict the growth and oxidative activity of some acetic acid bacteria (AAB).
A high-speed energy-efficient 64-bit reconfigurable binary adder

Datapaths for media signal processing are typically built using programmable computational elements such as adders and multipliers, which can be run-time reconfigured to operate on simple integers with 8, 16, or 32 bits of precision. In this brief, a new high-speed energy-efficient reconfigurable adder for media signal processing is presented. The proposed circuit is based on carry-propagation schemes and can be partitioned to perform one 64-, two 32-, four 16-, and eight 8-bit additions. When the Austria Mikro System (AMS) 0.35 /spl mu/m 2-poly 3-metal 3.3 V CMOS (CSD) process is used to produce layout, a worst propagation delay of about 4.9 ns and an average energy dissipation of about 181 /spl mu/W/MHz are obtained.
Local Similarity Search to Find Gene Indicators in Mitochondrial Genomes

Given a set of nucleotide sequences we consider the problem of identifying conserved substrings occurring in homologous genes in a large number of sequences. The problem is solved by identifying certain nodes in a suffix tree containing all substrings occurring in the given nucleotide sequences. Due to the large size of the targeted data set, our approach employs a truncated version of suffix trees. Two methods for this task are introduced: (1) The annotation guided marker detection method uses gene annotations which might contain a moderate number of errors; (2) The probability based marker detection method determines sequences that appear significantly more often than expected. The approach is successfully applied to the mitochondrial nucleotide sequences, and the corresponding annotations that are available in RefSeq for 2989 metazoan species. We demonstrate that the approach finds appropriate substrings.
Statistically Linearized State Estimation Algorithm with Correlated Noises

For the nonlinear state space model, it is difficult to obtain accurate closed-form solution from the recursive Bayesian framework. Therefore, in this case, through using the statistical linear regression, two algorithms with correlative noises are given based on the minimum mean-square-error estimation criterion in this paper. First, it proposes a statistical linear Kalman filter under the condition that the measurement noise and the process noise are correlated. And then it proposes a statistical linear fixed-point smoother based on the former filter. In fact, the combination of the statistical linear regression and unscented transform can ensure the development of such non-linear filter and smoother with wider scope of applicability.
A radicicol-related macrocyclic nonaketide compound, antibiotic LL-Z1640-2, inhibits the JNK/p38 pathways in signal-specific manner.

Macrocyclic nonaketide compounds, radicicol and its two analogues, 87-250904-F1 and LL-Z1640-2, have various biological activities. Here we show that these compounds inhibit signal-dependent transcriptional activation with different specificity with distinct mechanism. Although all three compounds inhibited PMA-induced AP-1 transcriptional activity in cell-based reporter assay, these compounds exhibited differential effects in separate transcriptional reporter assays for NF-kappaB and glucocorticoid receptor. Next we found that one of these compounds, LL-Z1640-2, was a signal-specific inhibitor of the JNK/p38 pathways. In contrast to LL-Z1640-2, radicicol and 87-250904-F1 did not inhibit JNK/p38 activation. Recently, radicicol was reported as an inhibitor of activated-Ras-induced ERK activation. These results indicated that radicicol and LL-Z1640-2 showed distinct specificity to various MAP kinase pathways despite their structural similarity. Furthermore, LL-Z-1640-2 inhibited anisomycin-induced but not TNF-induced JNK/p38 activation, indicating that the inhibition mechanism is signal-specific.
Look-ahead scheduling for energy-efficiency and low-latency in wireless sensor networks

The operation of a sensor node is limited by the initially equipped battery which is hard to be recharged or replaced. Thus reducing unnecessary energy consumption is one of the most important requirements. Most energy waste is from the always-on wireless interface and many new MAC protocols have been suggested to solve the problem. However, they sacrifice the MAC latency, especially, with multi-hop forwarding.In our approach, we designed a novel MAC protocol which has both low latency and power efficiency by separating channel reservation process and data transmission process. The sensor nodes having data to forward are efficiently scheduled during reservation process. The other nodes with no schedule go to sleep to save energy and only scheduled nodes are awake during scheduled time and transmit data. The performance of our protocol is evaluated through simulations.
Transformation de l'activité d'encadrement de proximité : que fait le pilotage par la performance à la "proximité" des cadres ? : Le cas d'une grande administration publique

Depuis les annees 2000, la France a mis en place d'importantes politiques de reformes de l'Etat. Ayant pour ambition affichee de moderniser la gestion de l'Etat en le recentrant sur ses missions prioritaires comme ameliorer le service rendu a l'usager et reduire les depenses publiques, ces reformes ont des repercussions sur l'ensemble des acteurs, et notamment sur les cadres de proximite. Pris en tenaille entre leur hierarchie qui fixe des objectifs de performance et leur equipe qui « fait » le travail, ces cadres traduisent au quotidien les objectifs en missions concretes.Dans le but de mieux comprendre cette posture d'equilibriste et ses consequences sur l'activite et la sante des cadres, cette these s'interesse a l'activite des cadres de proximite de la Direction Generale des Finances Publiques (DGFiP), creee en 2008 et qui s'inscrit dans la ligne du New Public Management. Ces cadres A encadrants sont issus des deux anciennes filieres distinguees avant la fusion, et dont les cultures respectives different au niveau de l'approche du pilotage par la performance et de la relation aux agents. Dans une administration en changement permanent, ils sont tirailles par des injonctions contradictoires, qui remettent continuellement en question leur positionnement vis-a-vis de la hierarchie versus equipe encadree, des objectifs de performance versus conditions de vie au travail, des logiques manageriales versus logiques de technicite du metier. Un detour par la litterature pluridisciplinaire (sciences de gestion, sociologie, psychologie), abondante notamment sur le role et le positionnement des cadres de proximite, pointe pourtant un creux sur le contenu-meme de ce travail. En ergonomie, les quelques recherches sur le travail des cadres de proximite s'interessent plutot a l'analyse des situations de travail. Nous proposons pour notre part d'analyser cette activite sous le prisme des parcours professionnels au sens de Gaudart & Ledoux (2013), c'est-a-dire comme une succession d'emplois ou de fonctions d'une part, et d'autre part un parcours de travail entendu comme un accroissement du temps vecu (Molinie, Gaudart & Pueyo, 2012) pointant les roles de l'experience. Notre objectif est de comprendre a la fois comment les transformations du travail impactent l'activite des cadres de proximite et en quoi l'experience peut etre une ressource dans la realisation de cette activite, notamment vis-a-vis de la regulation du couple distances/proximites par ces cadres.Notre strategie de recherche combine cinq methodes : l'analyse d'un dispositif existant denomme « espace de dialogue » et de ses contenus ; des entretiens notamment de reconstitution des parcours professionnels et sur le dialogue de gestion ; des observations de l'activite de 14 cadres de proximite ; des auto-confrontations a partir des traces de l'activite ; et l'organisation d'ateliers reflexifs.
A technique for the automatic estimation of ice thickness and bedrock properties from radar sounder data acquired at Antarctica

The rise in the temperature of the planet has a very negative impact on the subsurface dynamics of the Earth Polar Regions. This makes it crucial to investigate the features present in the ice subsurface. The analysis of these features is typically performed manually, by examining radargrams acquired by radar sounder (RS) instruments operated at the Polar Caps. However, in order to cope with the very large amount of data that RSs can acquire, it is necessary to develop data analysis techniques that can identify and extract subsurface features automatically. To address this problem, in this paper we propose a novel technique for the automatic estimation of the ice thickness and bedrock properties from RS data acquired in Antarctica. The proposed technique generates a statistical map of the subsurface by exploiting the statistical properties of the radar signal. Then, it applies a segmentation algorithm properly tuned to the characteristics of the investigated areas. In order to assess the effectiveness of the proposed technique, we analyzed its performance when applied to Multichannel Coherent Radar Depth Sounder (MCoRDS) data acquired in Antarctica.
Look-ahead path information based receding horizon control for backing-up tractor-trailer systems

On account of the backing-up tractor-trailer system with an off-axle connection, a mixed logical dynamics (MLD) approach and a receding horizon control (RHC) method have been addressed respectively for the purpose of modeling and control of such system. At first, Lyapunov theory is used to analyze the motion characteristics of the tractor-trailer system. Then, MLD approach is proposed to describe the kinematic of the tractor-trailer system. For the resulting MLD model, an extended cost function with quadratic form is addressed. To minimize the tracking error of the trailer, and smooth the behavior of the steering angle, an equivalent linear quadratic tracking problem is presented. In view of this problem, an explicit RHC controller is designed considering a look-ahead path information with finite horizon, by employing the multi-parametric mixed-integer quadratic programming (mp-MIQP) technique. Finally, the controller is evaluated through simulation, and achieves a desirable performance, even under the tracking of a non-smooth reference path.
Hidden Markov model-based occupancy grid maps of dynamic environments

For a reliable localization in dynamic environments, a robust representation is of vital importance to obtain an accurate position estimation. This paper introduces a hidden Markov model-based approach to obtain robust representations of dynamic environments. The model uses occupancy grid maps created at different times as observations. The approach involves a grid map registration process for pre-processing to align new observations impacting the robust representation. It uses a combined feature-based registration method and NDT-based refinement. For the robust representation, a hidden Markov model is used to estimate the probabilities of static and dynamic states of cells based on observations. The robust representation is updated with each new observation using an iterative propagation algorithm. Experiments on real world radar data demonstrate that a localization algorithm based on this method provides a more reliable localization performance than a standard approach.
Population studies

Population studies are concerned with the numbers of living organisms, and the factors controlling these numbers. Out of the vast range of organisms in the sea the only populations which have so far been studied in detail in this way are at the extreme ends of the food cycle—the phytoplankton (and to a much lesser extent the smaller zooplankton), and the larger fishes exploited by man. While the concentration of attention on to the commercial species and sizes of fish and whales is due in part to the importance of such studies in the field of conservations and fisheries regulations, another important reason is the much greater extent of data available. Studies of other marine populations depend on information gained at considerable trouble and expense from research vessels. For every research vessel (with time for population studies often strictly limited) there are a hundred fishing boats (all fishing full time), whose catches can fairly easily be examined to give information on the size and ages of the fish caught as well as the total quantities of each species. In addition the rough position and the amount of fishing required to obtain the catch will usually be known.
Sensitivity analysis for unmeasured confounding in principal stratification settings with binary variables

Within causal inference, principal stratification (PS) is a popular approach for dealing with intermediate variables, that is, variables affected by treatment that also potentially affect the response. However, when there exists unmeasured confounding in the treatment arms—as can happen in observational studies—causal estimands resulting from PS analyses can be biased. We identify the various pathways of confounding present in PS contexts and their effects for PS inference. We present model‐based approaches for assessing the sensitivity of complier average causal effect estimates to unmeasured confounding in the setting of binary treatments, binary intermediate variables, and binary outcomes. These same approaches can be used to assess sensitivity to unknown direct effects of treatments on outcomes because, as we show, direct effects are operationally equivalent to one of the pathways of unmeasured confounding. We illustrate the methodology using a randomized study with artificially introduced confounding and a sensitivity analysis for an observational study of the effects of physical activity and body mass index on cardiovascular disease. Copyright © 2012 John Wiley & Sons, Ltd.
Experiences of intimate relationships in young men who sexually offended during adolescence: interviews 10 years later

ABSTRACT Intimate relationships and sexuality are important, but often complicated, aspects of life. In this study we examined experiences of intimate relationships and sexuality in 20 young men, aged 22–31 years, who had sexually offended during adolescence. The participants were interviewed and the transcripts were thematically analysed. The main picture observed was that of young men with unfulfilled needs and a low capacity to meet those needs. Additionally, the men’s experiences of intimate relationships and sexuality seemed to be affected by their experience of having sexually offended. Some men longed for closeness with a partner but were afraid of getting too close. Others distanced themselves from relationships, claiming that they did not need others. These findings may demonstrate the men’s self-protective strategies for handling their identification as sexual offenders. These 20 men could also have been struggling with universal questions about closeness and sexuality while bearing other burdens, such as mistrust in others and feelings of shame, that interfered with this struggle.
Prolonged Enoxaparin Therapy to Prevent Venous Thromboembolism After Primary Hip or Knee Replacement

Background: Patients undergoing hip or knee joint replacement are at risk for venous thromboembolic complications for up to twelve weeks postoperatively. We evaluated the efficacy and safety of a prolonged post-hospital regimen of enoxaparin, a low-molecular-weight heparin, in this patient population. Methods: Following elective total hip or knee replacement, 968 patients received subcutaneous enoxaparin (30 mg twice daily) for seven to ten days, and 873 were then randomized to receive three weeks of double-blind outpatient treatment with either enoxaparin (40 mg once daily) or a placebo. The primary efficacy end point was the prevalence of objectively confirmed venous thromboembolism or symptomatic pulmonary embolism during the double-blind phase of treatment. Results: Of the 873 randomized patients, 435 underwent elective total hip replacement and 438 underwent elective total knee replacement. Enoxaparin was superior to the placebo in reducing the prevalence of venous thromboembolism in patients treated with hip replacement: 8.0% (eighteen) of the 224 patients treated with enoxaparin had venous thromboembolism compared with 23.2% (forty-nine) of the 211 patients treated with the placebo (p < 0.001; odds ratio, 3.62; 95% confidence interval, 2.00 to 6.55; relative risk reduction, 65.5%). Enoxaparin had no significant benefit in the patients treated with knee replacement: thirty-eight (17.5%) of the 217 patients treated with enoxaparin had venous thromboembolism compared with forty-six (20.8%) of the 221 patients treated with the placebo (p = 0.380; odds ratio, 1.24; 95% confidence interval, 0.76 to 2.02; relative risk reduction, 15.9%). Symptomatic pulmonary embolism developed in three patients, one with a hip replacement and two with a knee replacement; all had received the placebo. There was no significant difference in the prevalence of hemorrhagic episodes or other types of toxicity between the enoxaparin and placebo-treated groups. Conclusions: Prolonging enoxaparin thromboprophylaxis following hip replacement for a total of four weeks provided therapeutic benefit, by reducing the prevalence of venous thromboembolism, without compromising safety. A similar benefit was not observed in patients treated with knee replacement.
Characterization of near-wall turbulence in terms of equilibrium and periodic solutions

Near-wall turbulence in the buffer region is qualitatively characterized in terms of recentlyfound nonlinear three-dimensional solutions to the incompressible Navier–Stokes equation for wall-bounded shear flows. Jiménez & Simens’ (2001) traveling-wave solution for an autonomous wall flow, Nagata’s (1990) steady and Kawahara & Kida’s (2001) periodic solutions for a plane Couette flow are considered for characterization. These equilibrium and periodic solutions are classified into two families, of which one is dominated by streamwise vortices, and the other by streaks. The former family, which is composed of autonomous solutions, Nagata’s upper-branch solutions and time-periodic solutions, is similar to fully-turbulent simulationss in the near-wall region.