Associations between Executive Functioning and Social Adjustment in Urban School Children Participating in a Mindful Yoga Practice

The present study is a preliminary investigation assessing the associations between socioemotional adjustment and executive functioning problems in a low-income, high-risk sample of elementary students who participated in a mindful yoga practice. Mindfulness is a concept that encompasses attention within the present moment and requires acceptance and nonjudgment. Rather than being an outcome-reliant principle, it emphasizes the individual’s present state of mind and being (Kabat-Zinn, 2003). Recently, mindfulness has become a popular phenomenon in research. It has shown to be a highly effective coping strategy and mediator for cognitive, emotional, and behavioral problems (Flook, 2010; Hayes & Feldman, 2004; Broderick & Metz, 2009; Mendelson et al., 2010). However, little research has been done to assess the role mindfulness plays in children. The objective for this study was to investigate the associations between contextual stress, mindfulness, executive functioning difficulties, emotion dysregulation, and aggression. Data for these variables was reported via self-report (n=21), parent-report, and teacher-report at one time towards the end of the yoga curriculum. Mindfulness was not associated with executive functioning or emotional dysregulation. However, parent and teacher reports did reveal significant links among more aggression, executive functioning difficulties, and emotion dysregulation. Discussion notes the limitations of the current study and recommendations for improving the study design to improve the study of positive interventions for children experiencing high-stress lifestyles

Controle de surtos de tristeza parasitária bovina.

No Brasil, os agentes causadores da Tristeza Parasitária Bovina (TPB) são dois protozoários (Babesia bovis e Babesia bigemina) e uma rickettsia (Anaplasma marginale), sendo que a doença pode ser causada por um, dois ou os três agentes juntos.bitstream/item/55746/1/CR26-02.pd

Controle/profilaxia da tristeza parasitária bovina.

O complexo de doenças que inclui a babesiose e a anaplasmose é conhecido, no Brasil, como Tristeza Parasitária Bovina (TPB).bitstream/item/55745/1/ct38-2001.pd

Left Ventricular Trabeculations Decrease the Wall Shear Stress and Increase the Intra-Ventricular Pressure Drop in CFD Simulations

The aim of the present study is to characterize the hemodynamics of left ventricular (LV) geometries to examine the impact of trabeculae and papillary muscles (PMs) on blood flow using high performance computing (HPC). Five pairs of detailed and smoothed LV endocardium models were reconstructed from high-resolution magnetic resonance images (MRI) of ex-vivo human hearts. The detailed model of one LV pair is characterized only by the PMs and few big trabeculae, to represent state of art level of endocardial detail. The other four detailed models obtained include instead endocardial structures measuring ≥1 mm2 in cross-sectional area. The geometrical characterizations were done using computational fluid dynamics (CFD) simulations with rigid walls and both constant and transient flow inputs on the detailed and smoothed models for comparison. These simulations do not represent a clinical or physiological scenario, but a characterization of the interaction of endocardial structures with blood flow. Steady flow simulations were employed to quantify the pressure drop between the inlet and the outlet of the LVs and the wall shear stress (WSS). Coherent structures were analyzed using the Q-criterion for both constant and transient flow inputs. Our results show that trabeculae and PMs increase the intra-ventricular pressure drop, reduce the WSS and disrupt the dominant single vortex, usually present in the smoothed-endocardium models, generating secondary small vortices. Given that obtaining high resolution anatomical detail is challenging in-vivo, we propose that the effect of trabeculations can be incorporated into smoothed ventricular geometries by adding a porous layer along the LV endocardial wall. Results show that a porous layer of a thickness of 1.2·10−2 m with a porosity of 20 kg/m2 on the smoothed-endocardium ventricle models approximates the pressure drops, vorticities and WSS observed in the detailed models.This paper has been partially funded by CompBioMed project, under H2020-EU.1.4.1.3 European Union’s Horizon 2020 research and innovation programme, grant agreement n◦ 675451. FS is supported by a grant from Severo Ochoa (n◦ SEV-2015-0493-16-4), Spain. CB is supported by a grant from the Fundació LaMarató de TV3 (n◦ 20154031), Spain. TI and PI are supported by the Institute of Engineering in Medicine, USA, and the Lillehei Heart Institute, USA.Peer ReviewedPostprint (published version

Profilaxia da tristeza parasitária bovina: por quê, quando e como fazer.

A tristeza parasitária bovina - TPB, é um sério entrave econômico na pecuária bovina, pois além de apresentar altos índices de mortalidade e morbidade, é motivo de perdas de oportunidade e de mercado também, por parte dos produtores, de desestímulo em melhorar a produção.bitstream/item/55691/1/CR28-02.pd

Evidence for Variable, Correlated X-ray and Optical/IR Extinction toward the Nearby, Pre-main Sequence Binary TWA 30

We present contemporaneous XMM-Newton X-ray and ground-based optical/near-IR spectroscopic observations of the nearby ($D \approx 42$ pc), low-mass (mid-M) binary system TWA 30A and 30B. The components of this wide (separation $\sim$3400 AU) binary are notable for their nearly edge-on disk viewing geometries, high levels of variability, and evidence for collimated stellar outflows. We obtained XMM-Newton X-ray observations of TWA 30A and 30B in 2011 June and July, accompanied (respectively) by IRTF SpeX (near-IR) and VLT XSHOOTER (visible/near-IR) spectroscopy obtained within $\sim$20 hours of the X-ray observations. TWA 30A was detected in both XMM-Newton observations at relatively faint intrinsic X-ray luminosities ($L_{X}$$\sim$$8\times10^{27}$ $erg$ $s^{-1}$) compared to stars of similar mass and age . The intrinsic (0.15-2.0 keV) X-ray luminosities measured in 2011 had decreased by a factor 20-100 relative to a 1990 (ROSAT) X-ray detection. TWA 30B was not detected, and we infer an upper limit of ($L_{X}$ $\lesssim$ 3.0 $\times$ $10^{27}$ erg s$^{-1}$). We measured a large change in visual extinction toward TWA 30A (from $A_V \approx 14.9$ to $A_V \approx 4.7$) between the two 2011 observing epochs, and we find evidence for a corresponding significant decrease in X-ray absorbing column ($N_H$). The apparent correlated change in $A_V$ and $N_H$ is suggestive of variable obscuration of the stellar photosphere by disk material composed of both gas and dust. However, in both observations, the inferred $N_{H}$ to $A_{V}$ ratio is lower than that typical of the ISM, suggesting that the disk is either depleted of gas or is deficient in metals in the gas phase.Comment: 10 pages, 7 figures, Accepted for publication in MNRA

Advancing fetal therapy in the United Kingdom

Fetal therapy is a rapidly advancing sub-specialty, encompassing direct fetal treatment or the administration of substances to the mother to achieve fetal benefit. The goal of all fetal therapies is to improve the prognosis for a condition where there is evidence of pathology developing in utero. In this article we briefly examine all major types of fetal therapy and their current evidence