Search results for "HD"
showing 10 items of 4547 documents
The effect of hypothalamic stimulation during trace conditioning in rabbits
2001
Rehabilitative training of preterm children’s attention: a study on sustainability
2012
This article is concerned with the description of rehabilitative training aimed at severely and moderately preterm children at preschool age who display impairments of processes of selective attention, self-control and problem solving and who are at risk of Attention Deficit Hyperactivity Disorders. In line with a perspective of field study suggested by pediatric psychology, the treatment calls for the involvement of parents, teachers, neonatologists and children’s reference pediatricians. To be more precise, it is a study aimed at investigating the sustainability of the training path in terms of impact and transformative valence of the focalised processes. Involved in the study was a group…
The Effects of Transcutaneous Spinal Direct Current Stimulation on Neuropathic Pain in Multiple Sclerosis: Clinical and Neurophysiological Assessment
2019
Background: Central neuropathic pain represents one of the most common symptoms in multiple sclerosis (MS) and it seriously affects quality of life. Spinal mechanisms may contribute to the pathogenesis of neuropathic pain in MS. Converging evidence from animal models and neurophysiological and clinical studies in humans suggests a potential effect of transcranial direct current stimulation (tc-DCS) on neuropathic pain. Spinal application of DCS, i.e., transcutaneous spinal DCS (ts-DCS), may modulate nociception through inhibition of spinal reflexes. Therefore, ts-DCS could represents an effective, safe and well-tolerated treatment for neuropathic pain in MS, a largely unexplored topic. This…
Three-dimensional core-collapse supernovae with complex magnetic structures: I. Explosion dynamics
2021
Magnetic fields can play a major role in the dynamics of outstanding explosions associated to violent events such as GRBs and hypernovae, since they provide a natural mechanism to harness the rotational energy of the central proto-neutron star and power relativistic jets through the stellar progenitor. As the structure of such fields is quite uncertain, most numerical models of MHD-driven core-collapse supernovae consider an aligned dipole as initial magnetic field, while the field's morphology can actually be much more complex. We present three-dimensional simulations of core-collapse supernovae with more realistic magnetic structures, such as quadrupolar fields and, for the first time, an…
The impact of non-dipolar magnetic fields in core-collapse supernovae
2019
The magnetic field is believed to play an important role in at least some core-collapse supernovae if its magnitude reaches $10^{15}\,\rm{G}$, which is a typical value for a magnetar. In the presence of fast rotation, such a strong magnetic field can drive powerful jet-like explosions if it has the large-scale coherence of a dipole. The topology of the magnetic field is, however, probably much more complex with strong multipolar and small-scale components and the consequences for the explosion are so far unclear. We investigate the effects of the magnetic field topology on the dynamics of core-collapse supernovae and the properties of forming proto-neutron star (PNS) by comparing pre-collap…
Weight Reduction Behaviors Among European Adolescents : Changes From 2001/2002 to 2017/2018
2020
Purpose The purpose of this study was to analyze changes in the prevalence of weight reduction behaviors (WRBs) among European adolescents from 26 countries between 2001/2002 and 2017/2018. The impact of the perception of body weight on WLB was also analyzed, with particular attention being paid to overestimation. Methods The data of 639,194 European adolescents aged 11, 13, and 15 years who participated in the Health Behaviour in School-aged Children survey were analyzed. Age-standardized prevalence rates of WRB were estimated separately by survey round and gender for each country, using the overall 2017/2018 Health Behaviour in School-aged Children study population as the standard. Multiv…
Cleavage of Ge–Ge and Sn–Sn Triple Bonds in Heavy Group 14 Element Alkyne Analogues (EAriPr4)2 (E = Ge, Sn; AriPr4 = C6H3-2,6(C6H3-2,6-iPr2)2) by Rea…
2016
The reactions of heavier group 14 element alkyne analogues (EAriPr4)2 (E = Ge, Sn; AriPr4 = C6H3-2,6-(C6H3-2,6-iPr2)2) with the group 6 transition-metal carbonyls M(CO)6 (M = Cr, Mo, W) under UV irradiation resulted in the cleavage of the E–E triple bond and the formation of the complexes {AriPr4EM(CO)4}2 (1–6), which were characterized by single crystal X-ray diffraction as well as by IR and multinuclear NMR spectroscopy. Single-crystal X-ray structural analyses of 1–6 showed that the complexes have a nearly planar rhomboid M2E2 core with three-coordinate group 14 atoms. The coordination geometry at the group 6 metals is distorted octahedral formed by four carbonyl groups as well as two br…
Potential for large-bodied zooplankton and dreissenids to alter the productivity and autotrophic structure of lakes
2014
While limnological studies have emphasized the importance of grazers on algal biomass and primary production in pelagic habitats, few studies have examined their potential role in altering total ecosystem primary production and it’s partitioning between pelagic and benthic habitats. We modified an existing ecosystem production model to include biotic feedbacks associated with two groups of large-bodied grazers of phytoplankton (large-bodied zooplankton and dreissenid mussels) and estimated their effects on total ecosystem production (TEP), and the partitioning of TEP between phytoplankton and periphyton (autotrophic structure) across large gradients in lake size and total phosphorus (TP) co…
Truth in Fiction Reconsidered
2018
Possible and narrative worlds are traditionally the most influential tools for explaining our understanding of fiction. One obvious implication of this is considering fiction as a matter of pretence. The theory I offer claims that it is a mistake to take truth as a substantial notion. This view rejects possible worlds and pretence as decisive features in dealing with fiction. Minimalist theory of fiction offers a solution that gives a way to combine a philosophical theory of meaning and views of literary theory. Narrative worlds approach saves its usefulness since its focus is more in the psychological process of reading. Minimalist theory of fiction is based on the minimal theory of truth …
"Trollittaa niin että ihan lollittaa" : ttA-johtimiset uudisverbit
2014
Tutkimuksessani selvitän, miten ttA-johdinta käytetään nykypuhekielessä ja miten sen merkitys ja käyttö on muuttunut verrattuna aikaisempaan ja toisaalta yleiskieleen. ttA-johdin on nykypuhekielessä kuten yleiskielessäkin produktiivinen ja monikäyttöinen johdin. Kielioppi ja johtaminen muuttuvat yleensä sanastoa hitaammin, mutta ttA-johtimen nykyinen produktiivinen käyttö puhekielessä vaikuttaa eroavan esimerkiksi muutama vuosikymmen sitten tehdyistä johtimen kieliopillisista kuvauksista, joten ttA-johtimen nykytilan tarkastelu on perusteltua. Tutkimuskysymykseni on kaksiosainen, eli tarkasten ttA-johtimisten uudisverbien muotoa ja merkitystä ja lisäksi vertailen niitä yleiskieleen vakiintu…