Search results for "Sphere"
showing 10 items of 2121 documents
Dichotic listening: elimination of the right ear advantage under a dual task procedure.
1997
The aim of this article is to investigate the attentional effect on the dichotic listening (DL) performance when doing a simultaneous right hemisphere task. A group of 30 right-handed male participants had a standard DL test followed by a dual task procedure that consisted of a manipulospatial discrimination through the left hand and performed while doing the DL test. Participants showed the typical right ear advantage (REA), which lost its significance when they were confronted with the dual task, presumably due to the manipulospatial performance. The elimination of the REA was mainly due to facilitation of the left ear responses. Results are discussed in terms of Kinsbourne's model and ot…
cGMP MODULATES STEM CELLS DIFFERENTIATION TO NEURONS IN BRAIN IN VIVO
2010
During brain development neural stem cells may differentiate to neurons or to other cell types. The aim of this work was to assess the role of cGMP (cyclic GMP) in the modulation of differentiation of neural stem cells to neurons or non-neuronal cells. cGMP in brain of fetuses was reduced to 46% of controls by treating pregnant rats with nitroarginine-methylester (L-NAME) and was restored by co-treatment with sildenafil.Reducing cGMP during brain development leads to reduced differentiation of stem cells to neurons and increased differentiation to non-neuronal cells. The number of neurons in the prefrontal cortex originated from stem cells proliferating on gestational day 14 was 715 +/- 14/…
Recent advances and disputes about curcumin in retinal diseases
2021
Abstract Curcumin belongs to the group of so-called phytocompounds, biologically active molecules produced by plants exerting a beneficial effect on health. Curcumin shows a wide spectrum of different properties, being an anti-inflammatory, antioxidant, antimicrobial and antimutagenic molecule. The purpose of the review is to examine what literature reported on the characteristics of curcumin, particularly, on the beneficial and controversial aspects of this molecule, aiming for a better therapeutic management of retinal diseases. The retina is a constant target of oxidative stress, this tissue being characterized by cells rich in mitochondria and by vessels and being, obviously, continuous…
The so-called one-and-a-half syndrome, type II: a new syndrome?
1999
Objective: The term one-and-a-half syndrome, type II, was recently coined and has been applied to two somewhat different eye movement disorders: the loss of voluntary horizontal eye movements except for adduction in one eye (one patient with two lesions, one in the cerebral hemisphere and the other in the cavernous sinus) and the loss of all voluntary horizontal eye movements with adduction nystagmus in the right eye on attempted gaze to the left and preserved abduction in both eyes with the doll’s head maneuver (one patient with infarction of the midbrain). The justification of the term ‘one-and-a-half syndrome, type II’ is questioned. Design: Retrospective analysis of 9000 consecutive ele…
Rak - osobliwe metafory choroby
2016
W artykule zostały przedstawione metafory, jakimi obecnie posługujemy się, by opisać chorobę nowotworową. Ponieważ stała się ona chorobą publiczną i społeczną, i przestaje być tematem tabu, zatem wykreowała się wokół niej swoista metaforyka bliska terminologii wojskowej i fantastycznej. Artykuł zawiera także refleksję dotyczącą przemian w zakresie wspomnianej metaforyki i uwzględnia społeczne próby demitologizacji i złagodzenia dotychczasowego obrazu raka. Do tej pory uznawano raka za wroga, którego należy pokonać, obecnie natomiast zauważa się kuriozalną zmianę polegającą na podejmowaniu prób złagodzenia wizerunku choroby i odnajdywaniu w nim aspektów pozytywnych.
Model, software and database for line-mixing effects in the ν3 and ν4 bands of CH4 and tests using laboratory and planetary measurements-I: N2(and ai…
2006
International audience; Absorption spectra of the infrared ν3 and ν4 bands of CH4 perturbed by N2 over large ranges of pressure and temperature have been measured in the laboratory. A theoretical approach accounting for line mixing is proposed to (successfully) model these experiments. It is similar to that of Pieroni et al. [J Chem Phys 1999;110:7717–32] and is based on state-to-state rotational cross-sections calculated with a semi-classical approach and a few empirical parameters. The latter, which enable switching from the state space to the line space, are deduced from a fit of a single room temperature spectrum of the ν3 band at 50 atm. The comparisons between numerous measured and ca…
Osobliwosti profesinoj pidgotowki fachiwciw socjalnoj sfery w Ukraini
2018
In the statistics, the actual nutrition of the training equipment of the social sphere. The analysis of the results of the further training of fahіvtsіv, scho held on the basis of the NPU and the names of MP Drahomanov. Awarded in the form of children a yak by a methodical-practical workshop, including a field of training for students in the internship by students of the field of technical skills for the development of professional competencies of social issues of social sciences in the field of art and business, for a new professional foundation for a new career for a new professional for professional development.
Chemical-Based Methodologies to Extend the Shelf Life of Fresh Fish—A Review
2021
Due to its characteristics, fresh fish is a highly perishable food with a very short shelf-life under refrigeration. Several methods have been introduced to slow down its deterioration, such as by means of oxygen depletion of the food package (vacuum packaging), or by changing the natural atmosphere that is in contact with the fresh fish (modified atmosphere packaging), or by the use of chemicals generally recognized as safe: such compounds can be directly applied (by dipping or spraying) or incorporated into packaging materials and slowly migrate to the product, exerting a hurdle effect against microbial development and lipid oxidation (active packaging). This review aims to cover the most…
An Emulator Toolbox to Approximate Radiative Transfer Models with Statistical Learning
2015
Physically-based radiative transfer models (RTMs) help in understanding the processes occurring on the Earth’s surface and their interactions with vegetation and atmosphere. When it comes to studying vegetation properties, RTMs allows us to study light interception by plant canopies and are used in the retrieval of biophysical variables through model inversion. However, advanced RTMs can take a long computational time, which makes them unfeasible in many real applications. To overcome this problem, it has been proposed to substitute RTMs through so-called emulators. Emulators are statistical models that approximate the functioning of RTMs. Emulators are advantageous in real practice because…
Design and implementation of the AMIGA embedded system for data acquisition
2021
The successful installation, commissioning, and operation of the Pierre Auger Observatory would not have been possible without the strong commitment and effort from the technical and admin-istrative staff in Malargtie. We are very grateful to the following agencies and organizations for financial support: Comision Nacional de Energla Atomica, Agencia Nacional de Promocion Cientffica y Tec-nologica (ANPCyT) , Consejo Nacional de Investigaciones Cientfficas y Tecnicas (CONICET) , Gobierno de la Provincia de Mendoza, Municipalidad de Malargtie, NDM Holdings and Valle Las Leilas, in gratitude for their continuing cooperation over land access, Argentina; the Australian Research Council; Conselho…