Miracle-dz/UniFAR-FTUs huggingface dataset:
Redshift asymmetry and color-velocity correlation in nearby galaxy groups : evidence of dust ?

An excess of higher redshift galaxies, relative to the brightest member, in loose groups, was discovered by Arp in 1970, and was later confirmed by several authors. We find this effect to be present also in nearby small groups, identified by Tully in the Nearby Galaxy Catalogue. The asymmetry found is not likely to be ascribed to contamination by interlopers. A significant anticorrelation has also been found between the color excess E(B−V) T 0 and the velocity difference, with an associated E(B−V) T 0 variation on the order of 0.1-0.2
Logarithmic asymptotics for the supremum of a stochastic process

Logarithmic asymptotics are proved for the tail of the supremum of a stochastic process, under the assumption that the process satisfies a restricted large deviation principle on regularly varying scales. The formula for the rate of decay of the tail of the supremum, in terms of the underlying rate function, agrees with that stated by Duffield and O’Connell [Math. Proc. Cambridge Philos. Soc. (1995) 118 363–374]. The rate function of the process is not assumed to be convex. A number of queueing examples are presented which include applications to Gaussian processes and Weibull sojourn sources.
The volume mean-value property of harmonic functions

Let D be an open subset of RN N ≧ 2, such that O ∊ D and λ(D) < + ∞, where λ denotes N-dimensional Lebesgue measure. If the mean-value equality holds for every integrable harmonic function h on D. then accoeding to a theorem of KuranD is a ball of centre O. Here we show that the same conclusion holds if we assume the above mean-value equality only for positive integrable harmonic functions. Further, if the mean-value equality is assumed only for bounded harmonic functions, then D = B=\E, when B is an open ball and E is a polar set.
Baseline free water within the visual processing system predicts future psychosis in Parkinson disease

As psychosis is associated with decreased quality of life, increased institutionalization, and mortality in Parkinson disease (PD), it is essential to identify individuals at risk for future psychosis. This longitudinal study aimed to investigate whether diffusion tensor imaging (DTI) metrics of white matter hold independent utility for predicting future psychosis in PD, and whether they could be combined with clinical predictors to improve the prognostication of PD psychosis.
Bipolar outflow in B335

The high-velocity (C-12)O (J = 1-0) emission in B335 with a high angular resolution of 16 arcsec has been mapped. The high-velocity emission shows distinct bipolar pattern centered at IRAS 19345+0727, toward which a strong high-velocity (C-12)O emission has been detected. The bipolar lobes delineate remarkable collimation toward the IRAS source, indicating that the flow is focused within 0.02 pc of the driving source. Each lobe is accompanied by significant wing emission with the opposite velocity shift, which clearly shows the association with IRAS 19345+0727. This feature is well explained as a bipolar flow the axis of which is nearly perpendicular to the line of sight. There is no evidence of another evolved bipolar flow which does not associate with any dense core as previously suggested. This suggests that B335 is a site of very recent star formation, containing a single bipolar flow with an age of about 30,000 yr. 15 references.
Anode Spot Instability I. The Homogeneous Short Gap Instability

If the current in a "vacuum arc" surpasses a certain critical value a conspicuous and destructive phenomenon occurs at the anode, the ANODE CONSTRICTION INSTABILITY or ANODE SPOT FORMATION [1 - 10]. This paper will give a quantitative analysis of this phenomenon within the limits of a model which can be characterized by lateral homogenity, collision dominance and small electrode separation. Matching the various model regions results in a differential equation for the anodic spot area which exhibits an anode constriction instability of the "explosive type". A marginal instability criterion is derived and evaluated for various materials. This yields extensive information about the dependence of the constriction instability on the parameters of the experimental set up. The findings are compared with the experimental results and show satisfactory agreement within the limitations of experiments and theory.
Experimental and Three-Dimensional Numerical Study of the Single/Multiple Sessile Droplets Evaporation

Abstract In this work, a three-dimensional numerical simulation, accompanied by an experimental study, of the evaporation of one or more nonaligned liquid droplets deposited on a solid substrate and surrounded by air was produced. In addition to the central droplet, the behavior of other neighboring droplets was tracked. Evaporation of a single droplet S was compared with that of multiple droplets (a droplet C surrounded by four nonaligned droplets). The shielding effect exerted by the four droplets on the droplet C increases the life of the latter by 83% as compared to a single droplet. Evaporated flow of the droplet C is reduced by 58% compared to the case of the isolated droplet S. The droplets at the extremities evaporate faster (compared to the droplet C, the evaporated volume can increase up to 57%), since they have less interaction with nearby droplets. A geometric coefficient F characterizing the ratio of the distance separating two neighboring droplets, to the diameter of a droplet was introduced. The shielding effect decreases with the increase of F. For F greater than 5, the behavior of the extremity droplets tends toward that of a single droplet.
Controversies in the Front-Line Treatment of Systemic Peripheral T Cell Lymphomas

Simple Summary Systemic peripheral T cell lymphomas (PTCL) are a rare and clinically and biologically heterogeneous group of disorders with scarce and generally low-quality evidence guiding their management. In this manuscript, we tackle the current controversies in the front-line treatment of systemic PTCL and give our thoughts vis-a-vis potential developments to come in the next few years. Abstract Systemic peripheral T cell lymphomas (PTCL) are a rare and clinically and biologically heterogeneous group of disorders with scarce and generally low-quality evidence guiding their management. In this manuscript, we tackle the current controversies in the front-line treatment of systemic PTCL including (1) whether CNS prophylaxis should be administered; (2) whether CHOEP should be preferred over CHOP; (3) what role brentuximab vedotin should have; (4) whether stem cell transplant (SCT) consolidation should be used and whether autologous or allogeneic; (5) how should molecular subtypes (including DUSP22 or TP63-rearranged ALCL or GATA3 or TBX21 PTCL, NOS) impact therapeutic decisions; and (6) whether there is a role for targeted agents beyond brentuximab vedotin.
Harmonic balance methods applied to computational fluid dynamics problems

In this paper, we briefly review the classical harmonic balance method, and describe the adaptation of the method required for its application to computational fluid dynamics models of unsteady time periodic flows. We describe several variations of the method including a classical balancing method with pseudo time relaxation, the nonlinear frequency domain form and the time spectral form. We show that the maximum stable Courant–Friedrichs–Lewy (CFL) number for explicit schemes is dependent on the grid reduced frequency, a non-dimensional parameter that depends on the cell size, characteristic wave speed, and the highest frequency retained in the harmonic balance analysis. We apply the harmonic balance methods to several nonlinear unsteady flow problems and show that even strongly nonlinear flows can be modelled accurately with a small number of harmonics retained in the model.
Towards Haptic-Based Dual-Arm Manipulation

Vision is the main component of current robotics systems that is used for manipulating objects. However, solely relying on vision for hand−object pose tracking faces challenges such as occlusions and objects moving out of view during robotic manipulation. In this work, we show that object kinematics can be inferred from local haptic feedback at the robot−object contact points, combined with robot kinematics information given an initial vision estimate of the object pose. A planar, dual-arm, teleoperated robotic setup was built to manipulate an object with hands shaped like circular discs. The robot hands were built with rubber cladding to allow for rolling contact without slipping. During stable grasping by the dual arm robot, under quasi-static conditions, the surface of the robot hand and object at the contact interface is defined by local geometric constraints. This allows one to define a relation between object orientation and robot hand orientation. With rolling contact, the displacement of the contact point on the object surface and the hand surface must be equal and opposite. This information, coupled with robot kinematics, allows one to compute the displacement of the object from its initial location. The mathematical formulation of the geometric constraints between robot hand and object is detailed. This is followed by the methodology in acquiring data from experiments to compute object kinematics. The sensors used in the experiments, along with calibration procedures, are presented before computing the object kinematics from recorded haptic feedback. Results comparing object kinematics obtained purely from vision and from haptics are presented to validate our method, along with the future ideas for perception via haptic manipulation.
Effect Of Quartz Particle Size and Cement Replacement on Portland Limestone Cement properties

This research focuses on investigating the effect of quartz particle sizeand cement replacement on their physicomechnical properties. Portlandlimestone cement (PLC) was employed and replaced with quartz powder(QP) at various particle sizes (1.19 mm, 425 µm, 300 µm, 212 µm, <212µm) and cement replacement between 2.5 wt. % ~ 15 wt. % at interval of2.5 wt. % to study their impact on the cement properties. The PLC chemical composition revealed a relatively low lime and high silica contentcompared to the conventional cement. QP revealed a high silica, lime andsulphur contents compared to natural sand. A high consistence, elongatedsetting times and lower strengths and specific gravities were observed ascement was replaced with QP at a given particle size respectively. Theeffect of replacing cement with QP content between 2.5 wt. % and 15 wt. %at various particle sizes resulted in average increments by 45.32%, 23.13%and 36.06% for initial setting time, final setting time and water demandrespectively. This increase could be related with clinker diminution coupled with enhanced QP surface area and clinker diminution. Similarly, anincrease in the QP surface area at a given cement replacement led to higherwater consistence, retarded setting times and lower strength. The effect ofenhancing the QP’ surface area between 1.19 mm and below 212 µm at agiven cement replacement resulted in average increments by 26.27%, 8.61%and 7.49% for initial and final setting times and water demand respectively.The strength gain of the QP cement blend diminished significantly above30% up to 15 wt. % cement replacement especially beyond 3 days. The lowstrength could be due to the high-water consistence linked with silica content resulting in setting time retardation. The optimal QP content was determined at 5 wt. % owing to the fact that the physicomechnical properties didnot significantly deviate from the properties of control.
Prion Mutations in Republic of Republic of Korea, China, and Japan

Prion gene (PRNP) mutations are associated with diverse disease phenotypes, including familiar Creutzfeldt–Jakob Disease (CJD), Gerstmann–Sträussler–Scheinker disease (GSS), and fatal familial insomnia (FFI). Interestingly, PRNP mutations have been reported in patients diagnosed with Alzheimer’s disease, dementia with Lewy bodies, Parkinson’s disease, and frontotemporal dementia. In this review, we describe prion mutations in Asian countries, including Republic of Republic of Korea, China, and Japan. Clinical phenotypes and imaging data related to these mutations have also been introduced in detail. Several prion mutations are specific to Asians and have rarely been reported in countries outside Asia. For example, PRNP V180I and M232R, which are rare in other countries, are frequently detected in Republic of Korea and Japan. PRNP T188K is common in China, and E200K is significantly more common among Libyan Jews in Israel. The A117V mutation has not been detected in any Asian population, although it is commonly reported among European GSS patients. In addition, V210I or octapeptide insertion is common among European CJD patients, but relatively rare among Asian patients. The reason for these differences may be geographical or ethical isolation. In terms of clinical phenotypes, V180I, P102L, and E200K present diverse clinical symptoms with disease duration, which could be due to other genetic and environmental influences. For example, rs189305274 in the ACO1 gene may be associated with neuroprotective effects in cases of V180I mutation, leading to longer disease survival. Additional neuroprotective variants may be possible in cases featuring the E200K mutation, such as KLKB1, KARS, NRXN2, LAMA3, or CYP4X1. E219K has been suggested to modify the disease course in cases featuring the P102L mutation, as it may result in the absence of prion protein-positive plaques in tissue stained with Congo red. However, these studies analyzed only a few patients and may be too preliminary. The findings need to be verified in studies with larger sample sizes or in other populations. It would be interesting to probe additional genetic factors that cause disease progression or act as neuroprotective factors. Further studies are needed on genetic modifiers working with prions and alterations from mutations.
The Learning Curve of Surgery of Diabetic Tractional Retinal Detachment—A Retrospective, Comparative Study

Background and Objectives: There are few data in the literature concerning the learning curve of tractional retinal detachment (TRD) surgery. We have analyzed the experience gained by a vitreoretinal surgeon over 10 years. Materials and Methods: A retrospective, comparative study of 34 TRD cases operated using 20G instruments between 2008 and 2011 (group A) and 94 cases operated using 23G instruments between 2015 and 2019 (group B). The preoperative characteristics, the type of endotamponade, and the anatomical and functional success were reviewed. Results: The group A patients had a significantly higher rate of concomitant vitreous hemorrhage (VH) at presentation (64.7% vs. 37.2%) and of non-macular retinal detachments (52.9% vs. 39.3%). The rate of silicone oil endotamponade was high in both groups (76.4% vs. 68.1%), but in group B 25.5% were left without a tamponade (vs. none in group A). A postoperative anatomical success was obtained in 76.5% of eyes in group A and 84.04% of eyes in group B (where it was improved to 89.3% by reinterventions). The presenting visual acuity (VA) was very low in both groups (0.01 and 0.05, respectively). The proportion of eyes with improved or stabilized VA was 85.3% in group A and 79.8% in group B (statistically non-significant difference). Conclusions: The anatomical success rate improves quite slowly with increasing surgeon experience and can be further improved by reinterventions. Visual improvement does not match the rate of anatomical improvement. With increasing experience and self-confidence, the surgeon will approach more difficult cases, a fact that may slow down the increase in surgical success rates.
Parameters and predictions for the x-ray emitting gas of Coma, Perseus, and Virgo

The range of acceptable models for the intracluster gas in the Coma, Perseus, and Virgo clusters is determined from previous observations of the spectrum, intensity, and size of the cluster X-ray sources. Standard hydrostatic, wind, and inflow models are considered. For Virgo, we propose a ''well'' model in which the gas is trapped in the gravitational potential of M87, assumed very massive (M>10/sup 13/M/sub sun/) and extended (.pi.approx. =100 kpc). The iron abundance in the intracluster gas is determined from the observed strength of the 7 keV line feature; the required abundances for all models and all clusters are approximately equal and solar in value (somewhat larger than the original determinations of Mitchell and of Serlemitsos). The similarity of the abundances derived for these three clusters suggests that the line emission probably arises from the intracluster gas. Predictions are given for the cosmic microwave diminution and the dependence of X-ray size on observed energy for acceptable models for the intracluster gas.
Mapping first to final uses for rare earth elements, globally and in the United States

Estimating the material flows of rare earth elements (REEs) is essential to understanding which industries are most vulnerable to potential REE supply disruptions which, in turn, may inform policy recommendations aimed at reducing the supply risk. However, the REEs are a group of mineral commodities characterized by highly uncertain estimates of supply and demand due to the REE market's complexity, opacity, and small size. In this study, a streamlined methodology was applied to map mineral commodity first‐use to final‐use applications and to estimate total requirements at the national level based on available industrial data for final‐use finished goods. This analysis examines REEs both as a group and individually, showing that total US requirements are between 15% and 16.5% of world requirements for the year 2015, the latest year with the most complete information available. The findings shed light on US industrial capabilities by revealing the discrepancy between the types of REEs that go into US raw material consumption and those that are contained in embedded consumption. For instance, given the United States’ large oil refining industry, US raw material consumption of lanthanum is quite high. In contrast, US raw material consumption of neodymium is relatively low, whereas embedded demand is comparatively high. This reflects the lack of industrial capacity to process REE concentrates into magnet material combined with the US's high imports of products that contain rare earth permanent magnets.
Effects of high vitamin and micro-mineral supplementation on growth performance and pork quality of finishing pigs under heat stress

The objective of this study was to determine the effects of heat stress (HS) on the production performance of fattening pigs and whether the supplementation of vitamins (C and E) and micro-minerals (Se and Zn) at increased concentrations can mitigate HS adverse effects. Thirty six Danbred hybrid barrows (65.1 ± 2.81 kg) were randomly distributed into four treatments 1) HS (28.9 ± 0.9 °C, RH- 60.4 ± 4.3 %) + control diet (HC), 2) HS + diet 1 (HT1), 3) HS + diet 2 (HT2), and 4) thermo-neutral conditions (19.5 ± 0.9 °C, RH- 85.9 ± 7.3 %) + control diet (TC). Bodyweight and feed intake were measured weekly for four weeks. After the experiment, six pigs from each treatment were slaughtered, and the longissimus lumborum muscle was sampled to evaluate meat quality. At week four, HS significantly affected pig body weight (p < 0.05). However, the other parameters were not significantly affected by HS,while slight improvements in these parameters were observed by supplementing vitamins and micro-minerals in the diet of the pigs despite exposure to HS. Therefore, the pigs used in the study showed resilience to adverse effects of HS on growth and meat quality parameters. The content of vitamins C and E and microminerals Se and Zn in the diet seems to play an important role in resilience to HS, therefore their requirement and supplementation should be carefully evaluated.
Association between Participation of Children with Disabilities and the Child, Family, and Environmental Factors in Shanghai, China: A Cross-Sectional Study

Participation is essential to a child’s health and well-being, whereas children with disabilities may lack the associated benefits because of physical restrictions. This study aims to examine the association between the participation of children with disabilities and the child, family, and environmental factors. A total of 433 children with disabilities aged 3–18 and their family caregivers were included. Three binary logistic regression models were respectively established to identify the significant factors associated with children’s home, school, and community participation. Our main empirical results showed that among 433 children with disabilities, 44.3%, 47.6%, and 58.7% of them never or seldom participated in home, school, and community activities. Child and family factors were found to be dominantly associated with children’s participation, and significant factors associated with the home, school, and community participation of children were different, including children’s disability type, sleep problems and emotional stability, caregivers’ education, mental HRQOL, rehabilitation belief, and number of children in the family. These results highlight that the participation of children with disabilities in mainland China urgently needs to be enhanced, and further research might be focused on validating the causal relationships between participation and significant child and family factors identified in this study.
Teach Me Fishing or Give Me the Fish: Differential Effects of Receiving Autonomous and Dependent Help on Task Performance

Research on workplace helping behavior highlights the need for a more balanced perspective that acknowledges both the positive and negative consequences of receiving help. The purpose of this study is to investigate how the mechanisms through which we receive autonomous and dependent help differentially impact recipient task performance, as well as the boundary condition for such effects. Drawing on social information theory, we examined the mediating role of task- and self-focused processes, and the moderating role of perceived prosocial motivation. Through a two-wave and two-source field survey, we collected matched data from 350 employees and their direct supervisors. We examined our hypothesized model with path analysis using Mplus 7.4. Results indicated that receiving autonomous help improved task performance by leading recipients into task-focused processes, and perceived prosocial motivation further strengthened this positive indirect relationship. In contrast, receiving dependent help reduced task performance by eliciting recipients to engage in self-focused processes, and perceived prosocial motivation further augmented this negative indirect relationship. Overall, we spotlight the differential consequences of receiving autonomous and dependent help on recipients and encourage further inquiry about the role of social information processing in the helping literature.