nils-herrmann/clean_scirepeval huggingface dataset:
Motion based detection and tracking in 3D LiDAR scans
Venue: 2016 IEEE International Conference on Robotics and Automation (ICRA)

Robots are expected to operate autonomously in increasingly complex scenarios such as crowded streets or heavy traffic situations. Perceiving the dynamics of moving objects in the environment is crucial for safe and smart navigation and therefore a key enabler for autonomous driving. In this paper we present a novel model free approach for detecting and tracking dynamic objects in 3D LiDAR scans obtained by a moving sensor. Our method only relies on motion cues and does not require any prior information about the objects. We sequentially detect multiple motions in the scene and segment objects using a Bayesian approach. For robustly tracking objects, we utilize their estimated motion models. We present extensive quantitative results based on publicly available datasets and show that our approach outperforms the state of the art.
Management of the critically ill patient with cirrhosis: A multidisciplinary perspective.
Venue: Journal of hepatology

a r Management of the critically ill patient with cirrhosis: A multidisciplinary perspective Mitra K. Nadim1, Francois Durand, John A. Kellum, Josh Levitsky, Jacqueline G. O'Leary, Constantine J. Karvellas, Jasmohan S. Bajaj, Andrew Davenport, Rajiv Jalan, Paolo Angeli, Stephen H. Caldwell, Javier Fernandez, Claire Francoz, Guadalupe Garcia Tsao, Pere Gines, Michael G. Ison, David J. Kramer, Ravindra L. Mehta, Richard Moreau, David Mulligan, Jody C. Olson, Elizabeth A. Pomfret, Marco Senzolo, Randolph H. Steadman, Ram M. Subramanian, Jean Louis Vincent, Yuri S. Genyk
MOCVD growth and characterization of multi stacked InAs/GaAs quantum dots on misoriented Si(100) emitting near 1.3 mm

We report near 1.3 mm strong photoluminescence (PL) emission from 5 stacked InAs/GaAs quantum dots (QDs) monolithically grown on Si (1 0 0) substrates with 4deg miscut towards [110] direction by metal organic chemical vapor deposition (MOCVD) The metamorphic QD samples on Si were grown by three step method, in which bottom Al0.8Ga0.2As cladding and GaAs waveguide layers were simultaneously incorporated in order to fabricate Si based QD light emitting devices later. In particular, the GaAs waveguide layer grown with low and high temperature alternated significantly suppresses the upwards propagating of threading dislocations (TDs) into QD region and flattens the surface for latter adjacent nucleation of QDs. As a result, room temperature photoluminescence intensity of as grown Si based InAs/GaAs QD sample attains 87% of that on GaAs and its PL peak as long as 1280 nm with the full width at half maximum value up to 78 nm (i.e. 60 meV) Our study shows the great opportunity of using MOCVD grown Si based metamorphic QDs for 1.3 mm band light emitting devices.
An improved weakly compressible SPH method for simulating free surface flows of viscous and viscoelastic fluids
Venue: Comput. Phys. Commun.

In this paper, an improved weakly compressible smoothed particle hydrodynamics (SPH) method is proposed to simulate transient free surface flows of viscous and viscoelastic fluids. The improved SPH algorithm includes the implementation of (i) the mixed symmetric correction of kernel gradient to improve the accuracy and stability of traditional SPH method and (ii) the Rusanov flux in the continuity equation for improving the computation of pressure distributions in the dynamics of liquids. To assess the effectiveness of the improved SPH algorithm, a number of numerical examples including the stretching of an initially circular water drop, dam breaking flow against a vertical wall, the impact of viscous and viscoelastic fluid drop with a rigid wall, and the extrudate swell of viscoelastic fluid have been presented and compared with available numerical and experimental data in literature. The convergent behavior of the improved SPH algorithm has also been studied by using different number of particles. All numerical results demonstrate that the improved SPH algorithm proposed here is capable of modeling free surface flows of viscous and viscoelastic fluids accurately and stably, and even more important, also computing an accurate and little oscillatory pressure field.
A multiscale SPH method for simulating transient viscoelastic flows using bead spring chain model

In this article, a multiscale smoothed particle hydrodynamics (SPH) method is proposed to simulate transient viscoelastic flows by using a bead spring chain description of polymer molecule. This methodology couples macroscopic conservation equations for mass and momentum with a stochastic differential equation for bead spring chain dynamics, which can be solved by a three step semi implicit algorithm to obtain the polymeric stress. Accordingly, a closed form constitutive equation is not required. The multiscale SPH method is firstly verified by the plane Couette flow with Hookean and finitely extendable non linear elastic (FENE) bead spring chain models with the number of beads M 2, which correspond to Hookean and FENE dumbbell models, respectively. Results for the velocity and shear stress are in excellent agreement with the available numerical and analytical solutions in literature. Then, the numerical method is extended to simulate the plane Couette flow and Poiseuille flow with FENE bead spring chain model with M 2. In particular, some molecular information of bead spring chain such as the molecular stretch, the orientation angle and the mean configuration thickness are displayed. The influence of the number of beads M on the evolutions of the molecular information is also analyzed in detail. It is demonstrated that the multiscale SPH method proposed here is a promising computational tool for the multiscale simulations of transient viscoelastic flows.
A Study on Productivity Improvement in Narrow Gap TIG Welding

Adoption of narrow gap welding shall be increased for the butt joint of thick plate, because the deformation and welding cost is reduced by decrease of cross sectional area. However, sometimes narrow gap causes defects such as lack of fusion since it has small groove angle and narrow groove width. Therefore, GMAW, GTAW and SAWprocess shall be adopted to narrow gap welding with small bead hight and low deposition rate. In this study, Super TIG welding using C type strip was applied to semi narrow gap butt joint in order toincrease the welding productivity. High deposition rate 10kg/hr was obtained by high current 600A without undercut, humping bead and other welding defects. Measuring the mean and standard deviation of the meltingdepth to evaluate the developed processes, the fusion line type was determined by measuring the difference betweenmaximum and minium melting depth. Furthermore, a model on arch fusion line and linear fusion line was suggested in order to prevent LF on groove wall in narrow gap butt welding. Key Words Narrow gap, Butt welding, TIG welding, Super TIG welding, Deposition rate, Melting depth, Fusion lineISSN 1225 6153Online ISSN 2287 8955
A Multimodal Dataset for Interactive and Incremental Learning of Object Models

This work presents an incremental object learning framework oriented to human robot assistance and interaction. To learn new object models from interactions with a human user, the robot needs to be able to perform multiple recognition tasks: (a) recognize the type of interaction, (b) segment regions of interest from acquired data, and (c) learn and recognize object models. The contributions on this work are focused on the recognition modules of this human robot interactive framework. First, we illustrate the advantages of multimodal data over camera only datasets. We present an approach that recognizes the user interaction by combining simple image and language features. Second, we propose an incremental approach to learn visual object models, which is shown to achieve comparable performance to a typical offline trained system. We utilize two public datasets, one of them presented and released in this work. This dataset contains synchronized recordings from user speech and three cameras mounted on a robot, which captured the user teaching object names to the robot.
Borderline personality disorder in youth: The prospective impact of child abuse on non suicidal self injury and suicidality.
Venue: Comprehensive psychiatry

Borderline personality disorder (BPD) is characterized by greater engagement in non suicidal self injury (NSSI) and suicidality. The aim of the study is to test whether the occurrence of child abuse contributes to these high risk behaviors in BPD youth.  BPD female youth aged 13 21years with (n=29) and without (n=29) a history of child abuse were administered clinical interviews assessing diagnostic history, child abuse, NSSI and suicidality (i.e. ideation, plans, and attempts) NSSI and suicidality were subsequently reevaluated at the 1 and 2 month follow up assessments.  Several findings emerged. First, relative to BPD youth without abuse, the abuse group reported greater past NSSI; however, no significant differences emerged in the follow up period. Second, the occurrence of child abuse was associated with a 5 fold increase in the rate of lifetime suicide attempts relative to the no abuse group and additionally, prospectively predicted suicide ideation (but not attempts) Last, exploratory analyses indicated that the co occurrence of physical and sexual abuse was associated with greater past NSSI and suicidality as compared to the no abuse and sexual abuse only participants.  As a whole, child abuse particularly co occurring physical and sexual abuse increases risk for NSSI and suicidality among BPD youth, which may have important treatment implications in this high risk population.
The Impact of Child Abuse Severity on Adult Attachment Anxiety and Avoidance in College Women: The Role of Emotion Dysregulation
Venue: Journal of Family Violence

Recent evidence suggests a significant and unique effect of child abuse experiences on attachment related anxiety and avoidance in adult romantic relationships, although mechanisms underlying this relationship have yet to be identified. The current study examined the relation between three forms of child abuse (sexual, physical, and psychological) severity, emotion dysregulation, and attachment related anxiety and avoidance among 830 college women. Results indicated that emotion dysregulation significantly mediated the relationship between child abuse severity and attachment related anxiety and avoidance. Future directions for research and implications for intervention are discussed.
Longer term associations of preschool education: The predictive role of preschool quality for the development of mathematical skills through elementary school

This study investigates the longer term associations of preschool quality with the development of mathematical skills during elementary school, taking into account early and subsequent learning environments at home and at elementary school. The arithmetic skills of a German sample of 554 children in grades 1 3 (ages 7:5 9:3 years) were analyzed using latent linear growth curve models to test the extent to which the quality of preschool math instruction is related to entry skills in grade 1 and rates of change over time from grades 1 3. In addition, we asked whether preschool quality interacted with quality of the home environment (HLE) during early or middle childhood in predicting math skills. Results show that initial mathematical skills at grade 1 were predicted by numerical skills at preschool age, and socio economic status of the family. Moderator analyses revealed that middle childhood HLE moderated the preschool quality effect on the initial status of mathematical skills in grade 1 in such a way that preschool quality was associated with mathematical skills at grade 1 when middle childhood HLE was in the higher range. Growth in mathematical skills between grade 1 and 3 of elementary school was positively predicted by preschool quality even when controlling for the quality of the subsequent learning environments. Furthermore, elementary school quality was positively related to growth in mathematical skills during the observed period between grade 1 and 3. Moderator analyses revealed that effects of elementary school and preschool are additive as no significant interactive effects between quality in elementary school and preschool have been found. The study highlights the importance of high quality preschools for child development during elementary school.
Laser machining of Kevlar fiber reinforced laminates Effect of polyetherimide versus polypropylene matrix

Kevlar (r) fabric reinforced plastics (KFRPs) are specialized composites with multiple layers of fabrics ~ranging from 20 to 50 layers) designed for high impact applications. In this work, Kevlar 129 fiber was reinforced with polyetherimide (PEI) and polypropylene (PP) to obtain two groups of laminates in three configurations i.e. 16, 24 and 30 layers. Holes of diameter 11.6 mm were profile cut using fiber laser machining system operating at 1070 nm wavelength. Effects of polymeric matrix on the failure of the Kevlar polyetherimide (K PEI) and Kevlar polypropylene (K PP) laminates were characterized by studying the following: (i) threshold laser power required to make the holes (ii) surface morphology using scanning electron microscopy (iii) damage zone along the laser cut path using scanning acoustic microscopy and optical microscopy. K PEI laminates underwent material separation at much lesser line energy (ratio of laser power to velocity) than K PP laminates during laser machining. Scanning electron microscopy (SEM) was used to further analyze the laser cut surfaces. A prominent observation on the laser irradiated surface was: less recast/resolidified polymer covered the Kevlar fabric in K PEI as compared to a thicker polymeric layer in K PP. Heat affected zone and damage factors were evaluated using scanning acoustic microscopy (SAM) Surface roughness and kerf width were also analyzed to understand the effect of laser machining of Kevlar laminates.
Surgical outcomes following encephaloduroarteriosynangiosis in adult moyamoya disease associated with Type 2 diabetes.
Venue: Journal of neurosurgery

Debate exists regarding the merits and shortcomings of an indirect bypass procedure for treating adult patients with moyamoya disease (MMD) Considerable variation in neovascularization occurs among different organs in patients with diabetes mellitus. Here, the effect of encephaloduroarteriosynangiosis on MMD associated with Type 2 diabetes mellitus (T2DM) is evaluated.  A retrospective and 1:2 matched case control study was conducted in moyamoya patients with or without T2DM (n 180) Postoperative collateral formations were graded according to the Modified Collateral Grading System that originated from the Matsushima Angiographic Stage Classification. Neurological function outcomes before and after the operation were evaluated according to the modified Rankin Scale. Univariate and multivariate logistic regression analyses were performed to determine the risk factors for clinical outcome.  There was no statistically significant difference in the constituent ratios of initial symptom and preoperative Suzuki stage between patients with and without T2DM. Progression of angiopathy around the circle of Willis was postoperatively observed in bilateral internal carotid arteries in both groups. Patients with T2DM had a higher postoperative Suzuki stage (p 0.01) and more frequent development of collateral angiogenesis germinating from the external carotid after indirect revascularization procedures in the surgical cerebral hemisphere (82.7% vs 72.2% p 0.05) The extent of postoperative collateral formation in patients with diabetes mellitus was significantly higher (p 0.01) Postoperative clinical improvement in the diabetes group was more common after revascularization procedures (p 0.05) and the diabetes group had lower modified Rankin Scale scores (p 0.05) in comparison with the nondiabetes group. Late postoperative stroke and posterior cerebral artery involvement were identified as predictors of unfavorable clinical outcome in both groups, while T2DM was associated with a favorable clinical outcome.  Encephaloduroarteriosynangiosis is an efficacious treatment for adult patients with MMD. Patients with T2DM could achieve better collateral circulation and clinical improvement following surgery.
Hemodialysis Tunneled Catheter Noninfectious Complications
Venue: Canadian journal of kidney health and disease

Noninfectious hemodialysis catheter complications include catheter dysfunction, catheter related thrombus, and central vein stenosis. The definitions, causes, and treatment strategies for catheter dysfunction are reviewed below. Catheter related thrombus is a less common but serious complication of catheters, requiring catheter removal and systemic anticoagulation. In addition, the risk factors, clinical manifestation, and treatment options for central vein stenosis are outlined.
Hemodialysis Tunneled Catheter Related Infections
Venue: Canadian journal of kidney health and disease

Catheter related bloodstream infections, exit site infections, and tunnel infections are common complications related to hemodialysis central venous catheter use. The various definitions of catheter related infections are reviewed, and various preventive strategies are discussed. Treatment options, for both empiric and definitive infections, including antibiotic locks and systemic antibiotics, are reviewed.
Complex Regional Pain Syndrome Practical Diagnostic and Treatment Guidelines

This is the fourth edition of diagnostic and treatment guidelines for complex regional pain syndrome (CRPS; aka reflex sympathetic dystrophy) Methods. Expert practitioners in each discipline traditionally utilized in the treatment of CRPS systematically reviewed the available and relevant literature; due to the paucity of levels 1 and 2 studies, less rigorous, preliminary research reports were included. The literature review was supplemented with knowledge gained from extensive empirical clinical experience, particularly in areas where highquality evidence to guide therapy is lacking.  The research quality, clinical relevance, and "state of the art" of diagnostic criteria or treatment modalities are discussed, sometimes in considerable detail with an eye to the expert practitioner in each therapeutic area. Levels of evidence are mentioned when available, so that the practitioner can better assess and analyze the modality under discussion, and if desired, to personally consider the citations. Tables provide details on characteristics of studies in different subject domains described in the literature.  In the humanitarian spirit of making the most of all current thinking in the area, balanced by a careful case by case analysis of the risk/cost vs benefit analysis, the authors offer these "practical" guidelines.
Solidification of laser deposition shaping for TC4 alloy based on cellular automation

Solidification process of molten pool during laser deposition shaping (LDS) were investigated to simulate the temperature transient and microstructural evolution for TC4 alloy with grain nucleation and growth model based on cellular automation method. The experiments conducted on the corresponding process parameters were compared with the simulation results and the microstructures were analyzed. The results showed that microstructure in the molten pool preferred to form coarse b columnar grains and acicular a' martensite among the intracrystalline. The direction of grain growth was found to be opposite to the temperature transient, and the columnar grain trends to transform equiaxed microstructure. In the solidification process of molten pool, the preferred orientation of grain growth was <110> direction. Finally, it is verified that the simulation results agree well with the experimental results.
The impact of age stereotypes on source monitoring in younger and older adults.
Venue: Psychology and aging

In 2 experiments, we examined reliance on age stereotypes when reconstructing the sources of statements. Two sources presented statements (half typical for a young adult, half for an old adult) Afterward, the sources' ages 23 and 70 years were revealed and participants completed a source monitoring task requiring attribution of statements to the sources. Multinomial model based analyses revealed no age typicality effect on source memory; however, age typicality biased source guessing: When not remembering the source, participants predominantly guessed the source for whose age the statement was typical. Thereby, people retrospectively described the sources as having made more statements that fit with stereotypes about their age group than they had truly made. In Experiment 1, older (60 84 years) participants' guessing bias was stronger than younger (17 26 years) participants' but they also had poorer source memory. Furthermore, older adults with better source memory were less biased than those with poorer source memory. Similarly, younger adults' age stereotype reliance was larger when source memory was impaired in Experiment 2. Thus, age stereotypes bias source attributions, and individuals with poor source memory are particularly prone to this bias, which may contribute to the maintenance of age stereotypes over time.
Negative Stereotypes of Ethnic Out groups: A Longitudinal Examination Among Palestinian, Israeli Jewish, and Israeli Arab Youth.
Venue: Journal of research on adolescence the official journal of the Society for Research on Adolescence

Ethno political conflict impacts thousands of youth globally and has been associated with a number of negative psychological outcomes. Extant literature has mostly addressed the adverse emotional and behavioral outcomes of exposure while failing to examine change over time in social cognitive factors in contexts of ethno political conflict. Using cohort sequential longitudinal data, the present study examines ethnic variation in the development of negative stereotypes about ethnic out groups among Palestinian (n=600) Israeli Jewish (n=451) and Israeli Arab (n=450) youth over three years. Age and exposure to ethno political violence were included as covariates for these trajectories. Findings indicate important ethnic differences in trajectories of negative stereotypes about ethnic out groups, as well as variation in how such trajectories are shaped by prolonged ethno political conflict.
Dispersion in cognitive functioning: Age differences over the lifespan
Venue: Journal of clinical and experimental neuropsychology

A growing body of research suggests that intraindividual variability (IIV) may bring specific information on cognitive functioning, additional to that provided by the mean. The present paper focuses on dispersion, that is IIV across tasks, and its developmental trend across the lifespan.  A total of 557 participants (9 89 years) were administered a battery of response time (RT) tasks and of working memory (WM) tasks. Dispersion was analyzed separately for the two types of tasks.  Dispersion across RT tasks showed a U shaped age differences trend, young adults being less variable than both children and older adults. Dispersion across WM tasks (using accuracy scores) presented an opposite developmental trend. A cluster analysis revealed a group of individuals showing relatively little dispersion and good overall performance (faster in RTs and better in WM) contrasted with a group of individuals showing a large dispersion in the RT tasks as well as poorer overall performance. All young adults were grouped in the first cluster; children and older adults were distributed in both clusters.  It is concluded that (a) across task IIV is relatively large in the entire sample and should not be neglected, (b) children and older adults show a larger dispersion than young adults, but only as far as the RT tasks are concerned, (c) variability in RTs and variability in WM performance do not reflect the same phenomenon.