Miracle-dz/UniFAR-FTUs huggingface dataset:
STABLE AND UNSTABLE REGIMES OF MASS ACCRETION ONTO RW AUR A

We present monitoring observations of the active T Tauri star RW Aur, from 2010 October to 2015 January, using optical high-resolution (R ≥ 10,000) spectroscopy with Canada–France–Hawaii Telescope/ESPaDOnS. Optical photometry in the literature shows bright, stable fluxes over most of this period, with lower fluxes (by 2–3 mag) in 2010 and 2014. In the bright period our spectra show clear photospheric absorption, complicated variation in the Ca ii λ8542 emission profile shapes, and a large variation in redshifted absorption in the O i λλ7772 and 8446 and He i λ5876 lines, suggesting unstable mass accretion during this period. In contrast, these line profiles are relatively uniform during the faint periods, suggesting stable mass accretion. During the faint periods, the photospheric absorption lines are absent or marginal, and the averaged Li i profile shows redshifted absorption due to an inflow. We discuss (1) occultation by circumstellar material or a companion and (2) changes in the activity of mass accretion to explain the above results, together with near-infrared and X-ray observations from 2011 to 2015. Neither scenario can simply explain all the observed trends, and more theoretical work is needed to further investigate their feasibilities.
Asset Prices in General Equilibrium with Recursive Utility and Illiquidity Induced by Transactions Costs

In this paper, we study the effect of proportional transaction costs on consumption-portfolio decisions and asset prices in a dynamic general equilibrium economy with a financial market that has a single-period bond and two risky stocks, one of which incurs the transaction cost. Our model has multiple investors with stochastic labor income, heterogeneous beliefs, and heterogeneous Epstein-Zin-Weil utility functions. The transaction cost gives rise to endogenous variations in liquidity. We show how equilibrium in this incomplete-markets economy can be characterized and solved for in a recursive fashion. We have three main findings. One, costs for trading a stock lead to a substantial reduction in the trading volume of that stock, but have only a small effect on the trading volume of the other stock and the bond. Two, even in the presence of stochastic labor income and heterogeneous beliefs, transaction costs have only a small effect on the consumption decisions of investors, and hence, on equity risk premia and the liquidity premium. Three, the effects of transaction costs on quantities such as the liquidity premium are overestimated in partial equilibrium relative to general equilibrium.
Pharmacological thromboprophylaxis and epidural anaesthesia

Neuraxial blocks after several benefits over General Anaesthesia (GA) in surgical practice, due to their effect on endocrine and metabolic activity during perioperative period. They are also known to provide improved outcome with regard to intra operative complications like bleeding,[1,2] high quality postoperative analgesia, greater patient comfort and reduced post-operative morbidity and mortality. [3] Few of the studies have shown reduction in Deep vein thrombosis (DVT)with neuraxial block compared to GA. [4] These distinct advantages and efficacy of these neuraxial techniques over GA force the anaesthetist to lean more in favor of these blocks, whenever possible. [5]
Introduction : History in Organisation Studies BEHLÜL ÜSDİKEN

There have been various calls in the literature more recently for engaging with history in the study of organisations and their management. They have been joined by a number of studies that have either had an explicit historical focus or that have clearly incorporated an historical perspective in their examination of organisational and managerial phenomena. The appeal for greater engagement with history has, for the most part, come as a reaction to the largely ahistorical character that organisation studies has gained during its development as a separate discipline in the second half of the twentieth century. As Kieser has also observed, this has turned out to be the case despite the fact that, in looking back to its roots, the study of organisations can claim a heritage that has been attentive to historical influences. The turn away from history can and has been attributed to the scientistic slant that has come to dominate the field since the 1960s, particularly in North America. As Zald has noted, with such detachment, organisation studies has remained aloof to the more recent debates around the connections of history to social science. Nevertheless, despite a disciplinary frame that has evolved in the way of discounting history, there are recent signs in the literature of a growing appreciation of historical research and/or an historical perspective in organisational analysis. The indications for a re-emergence of an historical bent have to do, partly at least, with some of the newer and influential research programmes within organisation theory. These include neo-institutionalism and, indeed, evolutionary approaches like population ecology that analyse the development of organisations and organisational populations over time and, thus, can hardly avoid dealing with history. The claims of these central approaches in present-day organisational theorising to incorporating ‘history’ have also spurred some controversy, however. Likewise, several authors have taken issue with the degree to which studies of organisation cultures have been historical or, for that matter, the place history has occupied in some of the post-modern writing that has been inspired by Foucault’s genealogical perspective. Indeed, as attentiveness to history seems to be rising, a considerable degree of diversity and debate appears to be emerging as to what contributions history can make to organisation studies, and how these benefits could be obtained.
Heterogeneous Effects of Housing Vouchers on the Mental Health of US Adolescents.

OBJECTIVES To assess the mental health effects on adolescents of low-income families residing in high-poverty public housing who received housing vouchers to assist relocation. METHODS We defined treatment effects to compare 2829 adolescents aged 12 to 19 years in families offered housing vouchers versus those living in public housing in the Moving to Opportunity experiment (1994-1997; Boston, MA; Baltimore, MD; Chicago, IL; Los Angeles, CA; New York, NY). We employed model-based recursive partitioning to identify subgroups with heterogeneous treatment effects on psychological distress and behavior problems measured in 2002. We tested 35 potential baseline treatment modifiers. RESULTS For psychological distress, Chicago participants experienced null treatment effects. Outside Chicago, boys experienced detrimental effects, whereas girls experienced beneficial effects. Behavior problems effects were null for adolescents who were aged 10 years or younger at baseline. For adolescents who were older than 10 years at baseline, violent crime victimization, unmarried parents, and unsafe neighborhoods increased adverse treatment effects. Adolescents who were older than 10 years at baseline without learning problems or violent crime victimization, and whose parents moved for better schools, experienced beneficial effects. CONCLUSIONS Health effects of housing vouchers varied across subgroups. Supplemental services may be necessary for vulnerable subgroups for whom housing vouchers alone may not be beneficial.
Odor-Based Navigational Strategies for Mobile Agents

Although most species are sensitive to various chemicals, and olfactory skills such as search strategies for finding nutritious substance are seemingly simple, these basic skills are still not fully understood. Traditionally, chemotaxis has been considered as the fundamental chemosensory navigational mechanism for most species. Previous studies have demonstrated, however, that biased random walk is the more fundamental navigational strategy in various types of diffusion fields. Biased random walk is a robust and slow search process, but it has been shown that its efficiency can be enhanced if it is combined with chemotaxis. The present article summarizes previous findings of the authors in olfactory navigation and extends the work to searching in dynamic flow fields, including turbulence. In addition, a cooperative, multi-agent search method has been investigated and shown to be successful in enhancing search efficiency. The significance of these findings is discussed in the context of future plans to implement these strategies in experimental mobile robots.
Additive genetic variance and covariance in some reproduetive disorders in Hungarian Holstein Friesian using multi-trait animal model

Abstract. Relationships between some reproduetive disorders in the first 3 lactations of Holstein Friesian cows were investigated for 1886 lactation records. Multiple-trait maximum likelihood procedure which included sire cow within sire as random effect and herd, parity, month and year of calving as fixed effects was used to estimate heritabilities and repeatabilities for the studied traits. Abortion within 60 days, retained placenta, ovarian cysts calving difficulty, dystocia, mastitis, and calving type were coded as 0 and 1 for heritability and repeatability estimations. Pooled and separate analysis were applied on the first 3 lactations. Abortion within 60 days retained placenta, ovarian cysts, calving difficulty, dystocia, mastitis, abortion no. and calving type had moderate heritability estimates which ranged from 0.15 to 0.24. Low heritability estimates and a weak sire variance component were obtained for milk fever. The most frequent disorder traits were mastitis, milk fever abortion no calving type and calving difficulty (0.37 to 0.72). Up word trend of heritability estimates with advancing order of lactation was observed for mastitis, abortion within 60 days, and abortion no. while heritability estimates for calving type, calving difficulty and dystocia had a back word trend. These results help in determining the suitable age of selection. Additive genetic variances and covariances among the studied traits have indicated reducing incidence rates if selection index procedure used in this filed. Strong negative genetic correlation between milk fever and abortion no. (−0.429) while negative phenotypic correlations between all studied traits were not more than −0.120 which was estimated for calving difficulty and abortion no.
Changes in exercise characteristics, maximal voluntary contraction, and explosive strength during prolonged tennis playing

Objectives: To examine changes in exercise characteristics, maximal voluntary contraction, and explosive strength during prolonged tennis playing. Methods: Maximal isometric voluntary contraction (MVC), leg stiffness (hopping), and peak power in squat (SJ) and countermovement (CMJ) jumps were measured before, every 30 minutes during, and 30 minutes after a three hour tennis match in 12 well trained players. Heart rate (HR), the effective playing time (EPT), rating of perceived exertion (RPE), and muscle soreness of knee extensors were also measured. Results: Decreases in MVC (−9%; p<0.05) and leg stiffness (−9%; p = 0.17) were observed after the match and were significantly correlated (r = 0.66; p = 0.05). Peak power in SJ and CMJ tests was maintained during the match but was lower (p<0.001) 30 minutes after. Average HR and EPT were 144 (8) beats/min and 21 (4)% respectively. A strong correlation was found between EPT and HR (r = 0.93; p<0.05). RPE and muscle soreness increased linearly during the exercise and were significantly correlated (r = 0.99; p<0.001). Conclusions: Progressive reductions in maximal voluntary strength and leg stiffness highly correlated with increases in perceived exertion and muscle soreness were observed throughout a three hour tennis match, whereas explosive strength was maintained and decreased only after the match. These alterations may result in less efficient on-court movement and stroke production. They are, however, lower than those reported during continuous exercise of the same duration. The intermittent pattern of tennis and the numerous stretch-shortening cycle movements partly explain these results.
Right frontal lobe glioma presenting as anorexia nervosa: further evidence implicating dorsal anterior cingulate as an area of dysfunction.

OBJECTIVE The association of anorexia nervosa (AN) with organic brain lesions may offer insight into underlying illness neuropathology. A systematic review reported an association between AN and lesions located in the right frontal lobe. To date, no studies have studied such a case longitudinally. A case of a male presenting with AN and a frontal lobe glioma is described. METHOD The clinical symptoms and subsequent medical and neuropsychological investigations before and after surgery are reviewed. RESULTS The remission of ED symptoms is observed at 2 year post-surgery follow up. DISCUSSION The features of this case are set into the context of recent conceptualizations of AN and the clinical implications for identifying individuals with underlying organic causes.
Efficacy of exercises to rehabilitate dysphagia: A critique of the literature

Abstract Purpose: This review critiques the benefit of commonly used rehabilitative exercises for dysphagia. Method: Common goals of rehabilitation for dysphagia and principles of neuroplasticity are introduced as they apply to swallowing and non-swallowing exercises. A critique of published studies is offered regarding their evidence for showing benefit from the exercise. Result: One of five swallow exercises had preliminary evidence for long-term benefit and two of four non-swallow exercises have strong evidence for long-term benefit. Conclusion: Only a minority of exercises prescribed for patients with dysphagia have sufficient evidence for long-term improvement in swallowing.
The Atkinson Inequality Index in Multiagent Resource Allocation

We analyse the problem of finding an allocation of resources in a multiagent system that is as fair as possible in terms of minimising inequality between the utility levels enjoyed by the individual agents. We use the well-known Atkinson index to measure inequality and we focus on the distributed approach to multiagent resource allocation, where new allocations emerge as the result of a sequence of local deals between groups of agents agreeing on an exchange of some of the items in their possession. Our results show that it is possible to design systems that provide theoretical guarantees for optimal outcomes that minimise inequality, but also that in practice there are significant computational hurdles to be overcome: finding an optimal allocation is computationally intractable---independently of the approach chosen---and large numbers of potentially highly complex deals may be required under the distributed approach. From a methodological point of view, while much work in multiagent resource allocation relies on combinatorial arguments, here we use insights from basic calculus.
Relaciones familiares y desarrollo adolescente

En este articulo se presentan los hallazgos mas relevantes de la investigacion realizada en las ultimas decadas sobre las relaciones familiares y el desarrollo adolescente, prestando una atencion especial a dos aspectos: los cambios en estas relaciones con la llegada a la adolescencia de los hijos, y su influencia sobre el desarrollo y el ajuste del adolescente. Siguiendo un enfoque dimensional, se analizan aspectos claves del estilo parental, como son el afecto, la comunicacion, los conflictos, el control y la promocion de la autonomia. La literatura empirica existente sobre este tema indica que los adolescentes se ven muy favorecidos cuando tienen padres que se muestran afectuosos, comunicativos y les animan a mostrarse autonomos. Tambien el control y los conflictos pueden ser positivos para el desarrollo adolescente, aunque en este caso es necesario introducir algunas matizaciones, pues las consecuencias son menos evidentes. Por otra parte, los datos disponibles nos alejan de la vision catastrofista de las relaciones entre padres y adolescentes, ya que con la excepcion de la primera etapa de la adolescencia, en que suelen surgir algunas dificultades y conflictos, estas relaciones suelen ser positivas y satisfactorias. A partir de estos datos, se destaca la importancia de ofrecer a padres y madres orientacion y recursos para que puedan ejercer su rol parental de la forma mas favorable para ellos y para sus hijos.
Peroxiredoxin II Regulates Effector and Secondary Memory CD8+ T Cell Responses

ABSTRACT Reactive oxygen intermediates (ROI) generated in response to receptor stimulation play an important role in cellular responses. However, the effect of increased H2O2 on an antigen-specific CD8+ T cell response was unknown. Following T cell receptor (TCR) stimulation, the expression and oxidation of peroxiredoxin II (PrdxII), a critical antioxidant enzyme, increased in CD8+ T cells. Deletion of PrdxII increased ROI, S phase entry, division, and death during in vitro division. During primary acute viral and bacterial infection, the number of effector CD8+ T cells in PrdxII-deficient mice was increased, while the number of memory cells were similar to those of the wild-type cells. Adoptive transfer of P14 TCR transgenic cells demonstrated that the increased expansion of effector cells was T cell autonomous. After rechallenge, effector CD8+ T cells in mutant animals were more skewed to memory phenotype than cells from wild-type mice, resulting in a larger secondary memory CD8+ T cell pool. During chronic viral infection, increased antigen-specific CD8+ T cells accumulated in the spleens of PrdxII mutant mice, causing mortality. These results demonstrate that PrdxII controls effector CD8+ T cell expansion, secondary memory generation, and immunopathology.
Motor disturbances during non‐REM and REM sleep in narcolepsy–cataplexy: a video‐polysomnographic analysis

Motor events during sleep can be frequently observed in patients with narcolepsy–cataplexy. We hypothesized that increased motor events and related arousals contribute to sleep fragmentation in this disease. We aimed to perform a detailed whole‐night video‐polysomnographic analysis of all motor events during non‐rapid eye movement and rapid eye movement sleep in a group of narcolepsy–cataplexy patients and matched controls, and to assess the association with arousals. Video‐polysomnographic registrations of six narcolepsy–cataplexy patients and six sex‐ and age‐matched controls were analysed. Each motor event in the video was classified according to topography, number of involved body parts, duration and its association with arousals. The mean motor activity index was 59.9 ± 23.0 h−1 in patients with narcolepsy–cataplexy compared with 15.4 ± 9.2 h−1 in controls (P = 0.004). Distribution of motor events was similar in non‐rapid eye movement and rapid eye movement sleep in the patient group (P = 0.219). In narcolepsy–cataplexy, motor events involved significantly more body parts (≥ 2 body regions: 38.2 ± 15.6 versus 14.9 ± 10.0; P = 0.011). In addition, the proportion of motor events lasting longer than 1 s was higher in patients than controls (88% versus 44.4%; P < 0.001). Both total and motor activity‐related arousal indices were increased in narcolepsy–cataplexy (total arousal index: 21.6 ± 9.0 versus 8.7 ± 3.5; P = 0.004; motor activity‐related arousal index: 17.6 ± 9.8 versus 5.9 ± 2.3; P = 0.002). Motor activity and motor activity‐related arousal indices are increased in both non‐rapid eye movement and rapid eye movement sleep in narcolepsy–cataplexy compared with controls. This supports the concept of a general sleep motor dysregulation in narcolepsy–cataplexy, which potentially contributes to or even underlies sleep fragmentation in this disease.
The Influence of a Continuum of Care Model on the Rehabilitation of Compensation Claimants With Soft Tissue Disorders

Study Design. Population-based before-and-after design with concurrent control group. Objective. As continuums of care have been little studied, we evaluated the impact of the Workers' Compensation Board of Alberta (WCB-Alberta) model on sustained return to work, satisfaction with care, and cost. Summary of Background Data. Musculoskeletal conditions, such as back pain, continue to be leading causes of disability and work loss. From 1996 through 1997, the WCB-Alberta implemented a continuum of care model to guide rehabilitation service delivery for claimants with soft tissue injury. The model was designed as a decision-making tool to promote a consistent, evidence-based approach to care within the jurisdiction. Methods. The model was implemented province-wide so the entire population of workers insured by the WCB-Alberta was studied. Data were extracted from the WCB-Alberta administrative database from 2 years before implementation (1994–1995) to 5 years after (1996–2000). An intervention group was created from patients filing soft tissue injury claims for the low back, ankle, knee, elbow, and shoulder. The comparison group was formed of workers experiencing fractures or other traumatic non-soft tissue injuries. Satisfaction was measured through surveys. Primary outcome was cumulative days receiving wage replacement benefits. Multivariable Cox regression was used to determine the model's effect. Results. Over the entire study period, 70,116 claimants filed soft tissue injury claims while 101,620 claimants experienced non-soft tissue injuries. Significant improvement was observed in intervention group return-to-work outcomes after model implementation (hazard ratio = 1.54). Median duration of benefits decreased from 13 to 8 days. Little change was seen in the control group's disability duration (median duration, consistently 10 days). The majority of claimants were satisfied with care received. Cost savings over a 2-year full implementation period was $21.5 million (Canadian). Conclusion. Implementation of a soft tissue injury continuum of care involving staged application of various types of rehabilitation services appears to have resulted in more rapid and sustained recovery.
The Radiocarbon Evidence for the Temporal Priority of Chavin de Huantar

A critical evaluation of radiocarbon measurements taken from recent excavations at Chavin de Huantar, Peru provides the basis for an absolute chronology for the Chavin culture at Chavin de Huantar which spans from 850 B.C. to 200 B.C. Radiocarbon measurements from four coastal sites stylistically related to Chavin de Huantar are reviewed and found to be generally prior in date to the earliest known occupation at Chavin de Huantar.