Search results for "IAD"
showing 10 items of 711 documents
Iepazīšanās portāla lietošanas motīvi un personības tumšā triāde
2020
Pētījuma mērķis bija noskaidrot kāda sakarība pastāv starp iepazīšanās portālu lietošanas motīviem un tumšās triādes personības iezīmēm. Pētījumā piedalījās 686 Latvijas iepazīšanās portāla Otrapuse.lv lietotāji, 420 sievietes un 266 vīrieši. Pētījumā tika uzmantotas divas aptaujas: Īsā tumšās triādes skala (Short Dark Triad Scale, Jones & Paulhus, 2014). Latvijā metodi adaptējusi Laima Baldiņa (Baldiņa, 2017); Iepazīšanās portāla Otrapuse.lv lietošanas motīvi aptauja ( Tinder Motives Scale (TMS), Timmermans & De Caluwé, 2017). Aptauja tika adaptēta maģistra darba ietvaros. Pētījumā izvirzītie jautājumi: 1. Kāda sakarība pastāv starp iepazīšanās portāla lietošanas motīviem un tumšās triādes…
El cerebro y la conciencia: una propuesta integradora entre Damásio y Zubiri
2021
El estudio del sistema nervioso y sus funciones es fascinante y complejo. Uno de los asuntos más intrigantes de este campo es cómo la neurobiología produce estados conscientes. Para el estudio del complejo problema de la conciencia, son necesarios conocimientos tanto de neuroanatomía y fisiología como de lingüística y filosofía, lo que lo convierte en un problema temido o sencillamente ignorado tanto por científicos como por filósofos. Pero este desprecio del problema, lejos de resolverlo, desemboca en una reflexión reduccionista, que trata de ver un dilema donde hay un problema. En este artículo pretendemos aproximar las neurociencias y la filosofía, en el sentido de comprender cuál es la …
Synchronization of optical photons for quantum information processing
2015
We observe the Hong-Ou-Mandel interference via homodyne tomography on two photons extracted from two quantum memories.
The Molecular Analysis of the Light Adaptation Reactions in the Yellow‐green Alga Pleurochloris meiringensis (Xanthophyceae)
1988
The xanthophycean alga Pleurochloris meiringensis was homocontinuously cultured under high light (16 W/m2) and low light (2 W/m2) conditions. In low light cells, the chlorophyll a content and the dry weight on per cell basis is increased, the maximal photosynthetic capacity per chlorophyll is decreased. The content of chlorophyll c, vaucheriaxanthin-ester and heteroxanthin is similar in both cultures, whereas the content of diadinoxanthin and s-carotene is twice as high in high light cultures. High light cells contain more photosystem I and cytochrome f per chlorophyll than low light cells, whereas the QB content is found to be unchanged. Therefore, the ratio reaction center II/reaction cen…
Demonstration of diamond nuclear spin gyroscope
2021
Description
Luminosity and Mass Function of the Galactic open cluster NGC 2422
2003
We present UBVRI photometry of the open cluster NGC 2422 (age $\sim 10^8$ yr) down to a limiting magnitude $V\simeq19$. These data are used to derive the Luminosity and Mass Functions and to study the cluster spatial distribution. By considering the color-magnitude diagram data and adopting a representative cluster main sequence, we obtained a list of candidate cluster members based on a photometric criterion. Using a reference field region and an iterative procedure, a correction for contaminating field stars has been derived in order to obtain the Luminosity and the Mass Functions in the $M=0.4-3.5 M_\odot$ range. By fitting the spatial distribution, we infer that a non-negligible number …
Deep X-ray survey of the young open cluster NGC 2516 with XMM-Newton
2006
We report on a deep X-ray survey of the young (~ 140 Myr), rich open cluster NGC 2516 obtained with the EPIC camera on board the XMM-Newton satellite. By combining data from six observations, a high sensitivity, greater than a factor 5 with respect to recent Chandra observations, has been achieved. We detected 431 X-ray sources and 234 of them have as optical counterparts cluster stars spanning the entire NGC 2516 Main Sequence. The X-ray luminosities of cluster stars span the range log Lx (erg/s) = 28.4 - 30.8. The representative temperatures span the 0.3 - 0.6 keV (3.5 - 8 MK) range for the cool component and 1.0 - 2.0 keV (12 -- 23 MK) for the hot one; similar values are found in other y…
Crystal time-reversal symmetry breaking and spontaneous Hall effect in collinear antiferromagnets
2020
Identification of a previously overlooked spontaneous Hall effect mechanism creates opportunities in low-dissipation spintronics.
ROSAT PSPC/HRI observations of the open cluster NGC 2422
2002
We present the results of a ROSAT study of NGC 2422, a southern open cluster at a distance of about 470 pc, with an age close to the Pleiades. Source detection was performed on two observations, a 10-ks PSPC and a 40-ks HRI pointing, with a detection algorithm based on wavelet transforms, particularly suited to detecting faint sources in crowded fields. We have detected 78 sources, 13 of which were detected only with the HRI, and 37 detected only with the PSPC. For each source, we have computed the 0.2-2.0 keV X-ray flux. Using optical data from the literature and our own low-dispersion spectroscopic observations, we find candidate optical counterparts for 62 X-ray sources, with more than 8…
Search for exotic spin-dependent interactions with a spin-based amplifier
2021
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