Miracle-dz/UniFAR-FTUs huggingface dataset:
The Effect of Word Retrieval Therapy in Primary Progressive Aphasia: A Single-Case Study

Background: Anomia is a common symptom that can be detrimental to the everyday communication of patients with primary progressive aphasia (PPA). Studies on the anomia treatment in PPA demonstrate that re-learning is possible, but the maintenance and generalization of improvements are limited. The treatment of word retrieval in PPA has typically centered on the retrieval of single lexical items. Little is known about the effects of word-finding treatments in discourse tasks on lexical retrieval. Objectives: The purpose of this study was to introduce a combined semantic/phonological cueing treatment in the context of narrative discourse as a novel method for the treatment of word retrieval difficulty in a PPA patient and compare its effects with the effect of cueing treatment in the context of single words. Methods: One individual with PPA (FK) participated in this single-subject interventional study. FK was a 56-year-old woman with a one-year history of word finding difficulties following Frontotemporal dementia. She received 16 sessions of naming treatment over an eight-week period. The participant completed three baselines prior to treatment. The treatment used a semantic and phonological cueing hierarchy (four weeks, two times a week), followed by a cueing in a story-retelling context (four weeks, two times a week). The main outcome was the naming ability assessment score administered 10 times in order to examine the effectiveness of the therapy through statistical analysis. Results: The participant showed a significant improvement in the word retrieval ability in all stimuli and each set separately related to the therapies phases (P < 0.001). Nevertheless, no significant differences were observed between the therapies (P = 0.26). Following the integrated therapy, FK showed a slightly significant improvement in untreated words. Conclusions: Generally, without considering the type of therapy during this study, in spite of the progressive nature of the disease, word retrieval ability of the patient improved via both treatment programs. Furthermore, the generalization of untreated items and maintenance of treated items also were occurred to some extents. However, there was no evidence of integrated discourse context in cueing hierarchy protocol to make it elaborated and cause a greater effect in people with PPA. As the first known study to trial this issue in the context of PPA, its findings may warrant further investigations.
EXAMINATION OF THE DIFFERENCES BETWEEN ONLINE AND FACE-TO-FACE INTERVIEWS DURING A RECRUITMENT PROCESS IN TERMS OF CANDIDATES’ SELF-EFFICACY LEVELS

In today’s work conditions, time constraints and physical boundaries make it difficult to use face-to-face interviews during the recruitment process. Online interviews give the chance to cope with time and place limitations, but the interaction between the candidate and the interviewer is different than the case of sharing the same place. The aim of this study is to examine the differences between self-efficacy levels of participants, depending on their preferences about the type of recruitment interview. The results of the study showed that the participants preferring an online interview have significantly higher self-efficacy levels than participants preferring a face-to-face interview. In terms of gender, women preferring online interview have higher self-efficacy levels than men with the same preference. They also have higher self-efficacy than women and men preferring face-to-face interview. Findings regarding the differences in preference of the type of recruitment interview are discussed.
A Robust and Low-Complexity Source Localization Algorithm for Asynchronous Distributed Microphone Networks

In this paper, we propose a robust and low-complexity acoustic source localization technique based on time differences of arrival (TDOA), which addresses the scenario of distributed sensor networks in 3D environments. Network nodes are assumed to be unsynchronized, i.e., TDOAs between microphones belonging to different nodes are not available. We begin with showing how to select feasible TDOAs for each sensor node, exploiting both geometrical considerations and a characterization of the overall generalized cross correlation (GCC) shape. We then show how to localize sources in the space-range reference frame, where TDOA measurements have a clear geometrical interpretation that can be fruitfully used in the scenario of unsynchronized sensors. In this framework, in fact, the source corresponds to the apex of a hypercone passing through points described by the sole microphone positions and TDOA measurements. The localization problem is therefore approached as a hypercone fitting problem. Finally, in order to improve the robustness of the estimate, we include an outlier detection procedure based on the evaluation of the hypercone fitting residuals. A refinement of source location estimate is then performed ignoring the contributions coming from outlier measurements. A set of simulations shows the performance of individual blocks of the system, with particular focus on the effect of TDOA selection on source localization and refinement steps. Experiments on real data validate the localization algorithm in an everyday scenario, proving that good accuracy can be obtained while saving computational cost in comparison with state-of-the-art techniques.
BREATHE: a pilot study of a one-day retreat to reduce burnout among mental health professionals.

OBJECTIVE Staff burnout is a frequent problem for mental health providers and may be associated with negative outcomes for providers, consumers, and organizations. This study tested an intervention to reduce staff burnout. METHODS Community mental health providers were invited to participate in a day-long training session to learn methods to reduce burnout. A Web-based survey was given at time of registration, before the intervention, and again six weeks later. RESULTS Eighty-four providers participated in the training, and follow-up data were available for 74. Six weeks after the day-long training, staff reported significant decreases in emotional exhaustion and depersonalization and significant increases in positive views toward consumers. There were no significant changes in providers' sense of personal accomplishment, job satisfaction, or intention to leave their position. Ninety-one percent of the staff reported the training to be helpful. CONCLUSIONS This brief intervention is feasible, is acceptable to staff, and may improve burnout and staff attitudes.
Uncertainty and Investment Dynamics

This paper shows that, with (partial) irreversibility, higher uncertainty reduces the impact effect of demand shocks on investment. Uncertainty increases real option values making firms more cautious when investing or disinvesting. This is confirmed both numerically for a model with a rich mix of adjustment costs, time-varying uncertainty, and aggregation over investment decisions and time, and also empirically for a panel of manufacturing firms. These cautionary effects of uncertainty are large %u2013 going from the lower quartile to the upper quartile of the uncertainty distribution typically halves the first year investment response to demand shocks. This implies the responsiveness of firms to any given policy stimulus may be much lower in periods of high uncertainty, such as after major shocks like OPEC I and 9/11.
Anatomical Knee Variants in Discoid Lateral Meniscal Tears

Background: Discoid lateral meniscus was a common meniscal dysplasia and was predisposed to tear. There were some anatomical knee variants in patients with discoid lateral meniscus. The aim of this study was to analyze the relationship between anatomical knee variants and discoid lateral meniscal tears. Methods: There were totally 125 cases of discoid lateral meniscus enrolled in this study from February 2008 to December 2013. Eighty-seven patients who underwent arthroscopic surgery for right torn discoid lateral meniscus were enrolled in the torn group. An additional 38 patients who were incidentally identified as having intact discoid lateral menisci on magnetic resonance imaging (MRI) findings were included in the control group. All patients were evaluated for anatomical knee variants on plain radiographs, including lateral joint space distance, height of the lateral tibial spine, height of the fibular head, obliquity of the lateral tibial plateau, squaring of the lateral femoral condyle, cupping of the lateral tibial plateau, lateral femoral condylar notch, and condylar cutoff sign. The relationship between anatomical variants and meniscal tear was evaluated. These anatomical variants in cases with complete discoid meniscus were also compared with those in cases with incomplete discoid meniscus. Results: There were no significant differences between the two groups in lateral joint space distance (P = 0.528), height of the lateral tibial spine (P = 0.927), height of the fibular head (P = 0.684), obliquity of the lateral tibial plateau (P = 0.672), and the positive rates of squaring of the lateral femoral condyle (P = 0.665), cupping of the lateral tibial plateau (P = 0.239), and lateral femoral condylar notch (P = 0.624). The condylar cutoff sign was significantly different between the two groups, with the prominence ratio in the torn group being smaller than that in the control group (0.74 ± 0.11 vs. 0.81 ± 0.04, P = 0.049). With the decision value of the prominence ratio (0.78) in predicting discoid lateral meniscal tear, the sensitivity and specificity of the cutoff sign were 66% and 71%, respectively. There were no significant differences in radiographic variants between the complete and incomplete discoid lateral meniscal groups. Conclusions: The condylar cutoff sign observed on the tunnel view of the radiograph is helpful in predicting meniscal tear in adult patients with discoid lateral meniscus. As for these patients, further MRI test is recommended.
Repeating triplets of spikes and oscillations in the mitral cell discharges of freely breathing rats

The olfactory bulb responses to odours display evident temporal organization, both in the form of high‐frequency oscillations and precisely replicating triplets of spikes. In this study, the frequency of replicating triplets in a sample of 118 individual responses from 45 cells was compared with that in simulations of non‐homogeneous Poisson processes, constructed from the experimental post‐stimulus time histograms (PSTHs). In a large majority of the records, replicating triplets (to a precision of 0.5 ms) are found to be more numerous in the physiological records; in some of them, they are ∼ 10 times more abundant. An excess of precisely replicating triplets is also found in records where no oscillations are apparent in the autocorrelograms. Triplet replication thus seems a more robust phenomenon than transient oscillation. Not unlike fast oscillations observed in other preparations, replicating triplets produced by a given mitral cell are generally observed only during a restricted period of time of the respiratory cycle (at least in the case of the responses under olfactory stimulation). No relation was found, however, between the nature and strength of the olfactory stimulus and the frequency of replicating patterns. In the absence of olfactory stimulation, some mitral cell discharges also contain more replicating triplets than the non‐homogeneous Poisson simulations. Thus, replicating triplets in single‐cell discharges seem to play only an indirect role in the coding of olfactory information at the mitral cell output level.
Q A ] 8 A pr 2 00 2 Universality of Fedosov ’ s Construction for Star Products of Wick Type on Semi-Kähler Manilfolds

In this paper we construct star products on a semi-Kähler manifold (M, ω, I) using a modification of the Fedosov method based on a different fibrewise product similar to the Wick product on C. Having fixed the used connection to be the semi-Kähler connection these star products shall depend on certain data given by a formal series of closed two-forms on M and a certain formal series of symmetric contravariant tensor fields on M . In a first step we show that this construction is rich enough to obtain star products of every equivalence class by computing Deligne’s characteristic class of these products. Among these products we uniquely characterize the ones which have the additional property to be of Wick type which means that the bidifferential operators describing the star products only differentiate with respect to holomorphic directions in the first argument and anti-holomorphic directions in the second argument. These star products are in fact strongly related to star products with separation of variables introduced and studied by Karabegov. This characterization gives rise to special conditions on the data that enter the Fedosov procedure. Moreover, we compare our results that are based on an obviously coordinate independent construction to those of Karabegov that were obtained by local considerations and give an independent proof of the fact that star products of Wick type are in bijection to formal series of closed two-forms of type (1, 1) on M . Using this result we finally succeed in showing that the given Fedosov construction is universal in the sense that it yields all star products of Wick type on a semi-Kähler manifold. Due to this result we can make some interesting observations concerning these star products; we can show that all these star products are of Vey type and in addition we can uniquely characterize the ones that have the complex conjugation incorporated as an anti-automorphism. Nikolai.Neumaier@physik.uni-freiburg.de
STRONG NATURAL SELECTION IN A WARNING‐COLOR HYBRID ZONE

Frequency‐dependent selection on warning color can maintain narrow hybrid zones between unpalatable prey taxa. To measure such selection, we transferred marked Heliconius erato (Lepidoptera: Nymphalidae) in both directions across a 10‐km‐wide hybrid zone between Peruvian races differing in color pattern. These experimental H. erato were released at four sites, along with control H. erato of the phenotype native to each site. Survival of experimental butterflies was significantly lower than that of controls at two sites and overall. Most selection, measured as differences in survival, occurred soon after release. Selection against foreign morphs was 52% (confidence limits: 25–71 %) and was probably due to bird attacks on unusual warning‐color morphs (more than 10% of the recaptures had beak marks). Since only three major loci determine the color‐pattern differences, this suggests an average selection coefficient of 0.17 per locus, sufficient to maintain the narrow clines in H. erato.
Scalable Keyword Search on Large RDF Data

Keyword search is a useful tool for exploring large RDF data sets. Existing techniques either rely on constructing a distance matrix for pruning the search space or building summaries from the RDF graphs for query processing. In this work, we show that existing techniques have serious limitations in dealing with realistic, large RDF data with tens of millions of triples. Furthermore, the existing summarization techniques may lead to incorrect/incomplete results. To address these issues, we propose an effective summarization algorithm to summarize the RDF data. Given a keyword query, the summaries lend significant pruning powers to exploratory keyword search and result in much better efficiency compared to previous works. Unlike existing techniques, our search algorithms always return correct results. Besides, the summaries we built can be updated incrementally and efficiently. Experiments on both benchmark and large real RDF data sets show that our techniques are scalable and efficient.
Thirty-day mortality after percutaneous gastrostomy by endoscopic versus radiologic placement: a systematic review and meta-analysis

Background/Aims A percutaneous gastrostomy can be placed either endoscopically (percutaneous endoscopic gastrostomy, PEG) or radiologically (radiologically-inserted gastrostomy, RIG). However, there is no consistent evidence of the safety and efficacy of PEG compared to RIG. Recently, 30-day mortality has become considered as the most important surrogate index for evaluating the safety and efficacy of percutaneous gastrostomy. The aim of this meta-analysis was to compare the 30-day mortality rates between PEG and RIG. Methods Major electronic databases (MEDLINE, Embase, Scopus, and Cochrane library) were queried for comparative studies on the two insertion techniques of gastrostomy among adults with swallowing disturbance. The primary outcome was the 30-day mortality rate after gastrostomy insertion. Forest and funnel plots were generated for outcomes using STATA version 14.0. Results Fifteen studies (n=2,183) met the inclusion criteria. PEG was associated with a lower risk of 30-day mortality after tube placement compared with RIG (odds ratio, 0.60; 95% confidence interval [CI], 0.38–0.94; P=0.026). The pooled prevalence of 30-day mortality of PEG was 5.5% (95% CI, 4.0%–6.9%) and that of RIG was 10.5% (95% CI, 6.8%–14.3%). No publication bias was noted. Conclusions The present meta-analysis demonstrated that PEG is associated with a lower probability of 30-day mortality compared to RIG, suggesting that PEG should be considered as the first choice for long-term enteral tube feeding. Further prospective randomized studies are needed to evaluate and compare the safety of these two different methods of gastrostomy.
PROMPT HIGH-ENERGY EMISSION FROM PROTON-DOMINATED GAMMA-RAY BURSTS

The prompt emission of gamma-ray bursts (GRBs) is widely thought to be radiation from accelerated electrons, but an appreciably larger amount of energy could be carried by accelerated protons, particularly if GRBs are the sources of ultra-high-energy cosmic rays (UHECRs). We model the expected photon spectra for such “proton-dominated” GRBs in the internal shock scenario through Monte Carlo simulations, accounting for various processes related to high-energy electrons and protons. Besides proton and muon synchrotron components, emission from photomeson-induced secondary pair cascades becomes crucial, generally enhancing the GeV–TeV and/or eV–keV photons and offering a signature of UHE protons. In some cases, it can overwhelm the primary electron component and result in GRBs peaking in the 10 MeV–1 GeV range, which may be relevant to some bursts discussed in a recent re-analysis of EGRET TASC data. The dependence of the spectra on key quantities such as the bulk Lorentz factor, magnetic field, and proton-to-electron ratio is nontrivial due to the nonlinear nature of cascading and the interplay of electron- and proton-induced components. Observations by Fermi, ground-based telescopes, and other facilities should test these expectations and provide critical constraints on the proton acceleration efficiency.
Light deflection by gravitational waves from localized sources

We study the deflection of light (and the redshift, or integrated time delay) caused by the time-dependent gravitational field generated by a localized material source lying close to the line of sight. Our calculation explicitly takes into account the full, near-zone, plus intermediate-zone, plus wave-zone, retarded gravitational field. Contrary to several recent claims in the literature, we find that the deflections due to both the wave-zone $1/r$ gravitational wave and the intermediate-zone ${1/r}^{2}$ retarded fields vanish exactly. The leading total time-dependent deflection caused by a localized material source, such as a binary system, is proved to be given by the quasi-static, near-zone quadrupolar piece of the gravitational field, and therefore to fall off as the inverse cube of the impact parameter.
Derivation of Linear Hebbian Equations from a Nonlinear Hebbian Model of Synaptic Plasticity

A linear Hebbian equation for synaptic plasticity is derived from a more complex, nonlinear model by considering the initial development of the difference between two equivalent excitatory projections. This provides a justification for the use of such a simple equation to model activity-dependent neural development and plasticity, and allows analysis of the biological origins of the terms in the equation. Connections to previously published models are discussed.
Who Are the Doctoral Students Who Drop Out? Factors Associated with the Rate of Doctoral Degree Completion in Universities

The issue of considerable dropout rate in doctoral programs is well documented across a large number of countries. However, few studies address the factors associated with doctoral completion among Non-U.S. countries, multiple universities and fields of research. Nor do they investigate the interactions between these factors. The present paper aimed to overcome these limitations and analyzed the population of doctoral students in all disciplines of the two largest universities of the French-speaking Community of Belgium (N = 1509). Specifically, we focused on several factors: gender, nationality, marital status, master grade, whether students continued at the same university when transitioning to the doctoral degree, whether they continued in the same field, age at registration, research field and funding (i.e., type of funding and associated job requirements). Findings indicate that four factors (marital status, master grade, research field and funding) are directly associated with dropout rate when all factors are considered jointly in the same model. Furthermore, results indicate that some of these factors, such as the marital status and gender, interact. In addition, we found that an accumulation of risk factors leads to a massive increase in dropout rates. Finally, a time course analysis revealed that the highest dropout rate occurs during the first two years and is related to the absence of funding or scholarship. The results, limits and futures perspectives are discussed.
Does regenerated emission change the high-energy signal from gamma-ray burst afterglows?

We study regenerated high-energy emission from the γ-ray burst (GRB) afterglows, and compare its flux with the direct component from the same afterglow. When the intrinsic emission spectrum extends to the TeV region, these very high-energy photons are significantly absorbed by the cosmic infrared background (CIB) radiation field, creating electron-positron pairs; since these pairs are highly energetic, they can scatter the cosmic microwave background radiation up to GeV energies, which may change the intrinsic afterglow light curve in the GeV region. Using the theoretical models given in the literature and a reasonable choice of the relevant parameters, we calculate the expected light curve due to the regeneration mechanism. We find that the regenerated emission could only slightly change the original light curve, even if we take a rather large value for the CIB density, independently of the density profile of the surrounding medium, i.e. constant or wind-like profile. This ensures reliable estimation of the intrinsic GRB parameters when high-energy observation is accessible, regardless of the large amount of uncertainty concerning the CIB density as well as extragalactic magnetic field strength.