Search results for "ATC"
showing 10 items of 1982 documents
Mismatch negativity (MMN) in freely-moving rats with several experimental controls.
2014
Mismatch negativity (MMN) is a scalp-recorded electrical potential that occurs in humans in response to an auditory stimulus that defies previously established patterns of regularity. MMN amplitude is reduced in people with schizophrenia. In this study, we aimed to develop a robust and replicable rat model of MMN, as a platform for a more thorough understanding of the neurobiology underlying MMN. One of the major concerns for animal models of MMN is whether the rodent brain is capable of producing a human-like MMN, which is not a consequence of neural adaptation to repetitive stimuli. We therefore tested several methods that have been used to control for adaptation and differential exogenou…
Primera liberación de juveniles de mero Epinephelus marginatus (Lowe, 1834) (Serranidae: Teleostei) cultivados en criadero en arrecifes artificiales …
2008
A pilot experiment of stock enhancement based on the release of hatchery-reared juveniles of dusky grouper, Epinephelus marginatus, was carried out at two artificial reefs located 0.9 km offshore the south-western Sicilian coast (Central Mediterranean). The fish assemblages inhabiting the reefs were characterized using underwater visual census (UVC) surveys. Despite some differences in fish species richness, diversity and abundance, both artificial reefs provide suitable feeding resources and shelter opportunities for the settlement of dusky grouper juveniles. A total of 95 dusky grouper juveniles, which were 3 and 4 years old, were released. No stress-related effects on fish swimming or be…
Rayleigh Equation Anomaloscope from Commercially Available LEDs
2012
Most precise classification of CVD (color vision deficits) can be provided by using anomaloscope. Today anomaloscopes are available, which can evaluate red-green (Rayleigh) and blue-green (Moreland) color defects.DOI: http://dx.doi.org/10.5755/j01.ms.18.2.1928
Distributed Leadership and the Visibility/Invisibility Paradox in On-line Communities
2011
This paper analyzes the role of distributed leadership in three on-line communities, reflecting on an observed visibility/invisibility paradox in leadership within these communities. Leaders who downplay their seniority and assume a degree of invisibility, allocating discretionary powers to subordinate levels in an organizational hierarchy, may facilitate the emergence of distributed leadership. Yet, simultaneously, leader-led relations are enabled by high leadership visibility. This paradox—that leaders need to be both highly visible and also invisible, or hands-off, when the occasion requires it—was derived from prior research into e-learning communities and tested in the analysis of disc…
Double non-taxation and the use of hybrid entities
2017
La tesis analiza la interacción entre la doble no imposición y el uso de entidades híbridas dentro del contexto internacional, lo que incluye la aplicación de tratados internacionales para evitar la doble imposición. En este sentido, y contrariamente a la opinión mayoritaria de la doctrina fiscal internacional, el autor argumenta que la doble no imposición debería ser entendida de acuerdo a su naturaleza de resultado, es decir, no debería considerarse per se como un problema internacional ni menos utilizarse como un elemento fundamental en el diseño de normas específicas anti-híbridos. De la misma manera, y contrariamente a la tendencia internacional en cuanto a alinear resultados tributari…
The character name translations in the Finnish translation of Terry Pratchett’s Lords and Ladies
2009
Tämän proseminaarityön tarkoituksena oli tutkia minkälaisia käännösratkaisuja on hyödynnetty suomennettaessa henkilönimiä Terry Pratchettin kirjassa Lords and Ladies (suomeksi Herraskaista väkeä). Tarkoitus oli selvittää, onko käännösratkaisut valikoitu jonkin tietyn säännönmukaisuuden perusteella. Aineistona tässä tutkimuksessa oli asianomainen romaani, sekä alkuperäiskielisenä versiona että suomenkielisenä käännöksenä. Aineistosta kerättiin henkilönimet ja alkuperäisiä ja käännöksiä verrattiin keskenään. Lisäksi käännökset luokiteltiin käännösratkaisun mukaan seitsemään ryhmään. Lähestymistavaltaan tutkimus on laadullinen ja analyyttinen. Tutkimuksessa kävi ilmi, että saman teoksen sisäl…
Sunlit surface waters : exploring the photochemical reactivity of dissolved organic carbon
2017
In surface waters, solar radiation can photochemically mineralise the dissolved organic carbon (DOC, a measure of dissolved organic matter, DOM) to dissolved inorganic carbon (DIC). This DIC photoproduction constitutes an essential yet vague flux in the aquatic carbon cycling. The present thesis is based on the empirical assessment of the DOC photochemical reactivity, which was determined as the spectral apparent quantum yields (AQY) for DIC photoproduction. First, AQYs were determined in DOM solutions to quantify the impact of pH and DOM-associated iron. Then boreal lake waters were used for assessing the alteration of DOC photoreactivity due to water quality and catchment property. By sim…
Automatic Processing of Changes in Facial Emotions in Dysphoria: A Magnetoencephalography Study
2018
It is not known to what extent the automatic encoding and change detection of peripherally presented facial emotion is altered in dysphoria. The negative bias in automatic face processing in particular has rarely been studied. We used magnetoencephalography (MEG) to record automatic brain responses to happy and sad faces in dysphoric (Beck’s Depression Inventory ≥ 13) and control participants. Stimuli were presented in a passive oddball condition, which allowed potential negative bias in dysphoria at different stages of face processing (M100, M170, and M300) and alterations of change detection (visual mismatch negativity, vMMN) to be investigated. The magnetic counterpart of the vMMN was el…
Marine reserves : fish life history and ecological traits matter
2010
Copyright by the Ecological Society of America
Brain responses to sound intensity changes dissociate depressed participants and healthy controls.
2017
Depression is associated with bias in emotional information processing, but less is known about the processing of neutral sensory stimuli. Of particular interest is processing of sound intensity which is suggested to indicate central serotonergic function. We tested weather event-related brain potentials (ERPs) to occasional changes in sound intensity can dissociate first-episode depressed, recurrent depressed and healthy control participants. The first-episode depressed showed larger N1 amplitude to deviant sounds compared to recurrent depression group and control participants. In addition, both depression groups, but not the control group, showed larger N1 amplitude to deviant than standa…