Search results for "FS"
showing 10 items of 1992 documents
The enigmatic young brown dwarf binary FU Tau: accretion and activity
2010
FU Tau belongs to a rare class of young, wide brown dwarf binaries. We have resolved the system in a Chandra X-ray observation and detected only the primary, FU Tau A. Hard X-ray emission, presumably from a corona, is present but, unexpectedly, we detect also a strong and unusually soft component from FU Tau A. Its X-ray properties, so far unique among brown dwarfs, are very similar to those of the T Tauri star TW Hya. The analogy with TW Hya suggests that the dominating soft X-ray component can be explained by emission from accretion shocks. However, the typical free-fall velocities of a brown dwarf are too low for an interpretation of the observed X-ray temperature as post-shock region. O…
Lay definitions of happiness across nations: The primacy of inner harmony and relational connectedness
2016
In well-being research the term happiness is often used as synonymous with life satisfaction. However, little is known about lay people's understanding of happiness. Building on the available literature, this study explored lay definitions of happiness across nations and cultural dimensions, analyzing their components and relationship with participants' demographic features. Participants were 2799 adults (age range = 30-60, 50% women) living in urban areas of Argentina, Brazil, Croatia, Hungary, India, Italy, Mexico, New Zealand, Norway, Portugal, South Africa, and United States. They completed the Eudaimonic and Hedonic Happiness Investigation (EHHI), reporting, among other information, th…
Analysis of the Structure and Dynamics of European Flight Networks
2022
We analyze structure and dynamics of flight networks of 50 airlines active in the European airspace in 2017. Our analysis shows that the concentration of the degree of nodes of different flight networks of airlines is markedly heterogeneous among airlines reflecting heterogeneity of the airline business models. We obtain an unsupervised classification of airlines by performing a hierarchical clustering that uses a correlation coefficient computed between the average occurrence profiles of 4-motifs of airline networks as similarity measure. The hierarchical tree is highly informative with respect to properties of the different airlines (for example, the number of main hubs, airline participa…
Jaucējfaktoru ietekme un to identifikācija
2021
Bakalaura darbā definēts jaucējfaktora jēdziens un salīdzinātas metodes to identifikācijai. Aprakstīta cēloņsakarību statistikas problēmas nostādne. Paskaidroti orientēti acikliski grafi. Definētas situācijas, kad jaucējfaktoru kontrolēšana ir nepieciešama. Apskatītas gan metodes, kas balstītas uz informāciju par asociāciju starp faktoriem, gan metodes, kas balstītas tikai uz datiem. Dažādās metodes pielietotas uz vairākiem simulētiem cēloņsakarību tīkliem un salīdzināta iegūto rezultātu precizitāte. Ar reāliem datiem apskatīts, kā metodes strādā situācijās, kuras potenciāli veido struktūru ar sadursmes virsotni.
"Je vais être malade de l’amiante, mais l’État, il n’en aura rien à foutre de moi". Ajustements collectifs et individuels aux impensés de la santé au…
2016
International audience
Cilvēka parvovīrusa B19 infekcijas marķieru un aktivīna B klātbūtne pacientiem ar ME/CF
2021
Mialģiskais encefalomielīts jeb hroniskā noguruma sindroms ir augsti heterogēna slimība ar nezināmu etiopatoģenēzi. Aktuāla ir nepieciešamība pēc ME/CFS biomarķieru atklāšanas un pacientu stratifikācijas. Iespējams, ME/CFS iedalījums varētu būt ar infekciju saistīta saslimšana. Tādēļ šajā darbā tika pārbaudīta B19 infekcijas marķieru klātbūtne un aktivīna B, potenciālā biomarķiera, koncentrācija ME/CFS pacientiem. Pētījuma ietvaros noteica B19 specifisko IgG/IgM klases antivielu klātbūtni, aktivīna B koncentrāciju, lietojot ELISA testus, un B19 NS genoma sekvences nPCR pilnu asiņu un no šūnām brīvas asins plazmas DNS paraugos ME/CFS pacientiem un praktiski veseliem asins donoriem (PVAD). Ie…
Déplacement et engagement dans l'œuvre "Al-rawda al-nu'maniyya fi siyahat Filastin" de Nu'man al-Qasatili (1854-1920)
2017
Au carrefour entre relèvement topographique, analyse sociologique et récit de voyage (riḥla), l’œuvre Al-rawḍa al-nu̔māniyya fī siyāḥat Filasṭīn de l’historien Nu̔mān al-Qasāṭilī al-Dimašqī (1854 – 1920) représent un témoignage important éclairant des aspects de la vie sociale et culturelle des territoires palestiniens qui, vers 1870, font encore partie de la province ottomane de Syrie (wilāyat al-Šām). À Jérusalem, ville qui veut constituer le cœur de notre analyse, le regard du voyageur se fixe non seulement sur le milieu social, d’ailleurs conditionné par la présence de différentes communautés religieuses (juifs, chrétiens, musulmans), mais aussi sur la réalité institutionnelle et cultur…
Scènes gourmandes
2006
Le marché, la cuisine, la table : scènes gourmandes, non au sens théâtral, mais comme lieux d'éveil de notre quête alimentaire, comme moments de vie qui s'organisent autour de notre alimentation. Scènes colorées, scènes contrastées, ouvertes à l'appétit du consommateur et l'imaginaire du mangeur. Tantôt le banal et l'ordinaire, pris dans le quotidien des choses, tantôt la liberté et la création, l'improvisation ou l'art le plus maîtrisé pour sublimer la matière, changer notre manière de voir les aliments et, au-delà, tout l'univers gourmand, gourmet. Un monde d'interdits et d'audaces, de bonnes manières et d'extravagances, au fil du temps, au plus profond des cultures et des traditions. Un …
Temperamentally inhibited children are at risk for poorer maths performance : self-concept as mediator
2020
AbstractIt has repeatedly been found that temperamental inhibition and low academic achievement are associated with each other: children with cautious and wary or shy behaviour are at risk for low academic achievement. Several suggestions about the mechanism behind this association have been made, these highlighting for example, the fewer learning opportunities of cautious and wary children and more negative interaction between teachers and inhibited children. However, the empirical studies about these mechanisms are rare and, thus, they have remained unclear. This study examined whether children’s maths-related self-concept of ability acts as a mediator between their temperamental inhibiti…
The complementary structural studies of the double metal cyanide type catalysts for the ring opening polymerization of the oxiranes
2016
Przeprowadzono badania strukturalne katalizatorów dimetalocyjankowych (DMC) z dwoma rodzajami ligandów organicznych. Zaproponowano wyjaśnienie etapów przebiegu krzywych otrzymanych metodą analizy termograwimetrycznej i różnicowej kalorymetrii skaningowej (TG/DSC) badanych katalizatorów. Wykazano obecność kilku stopni związania ligandów w kompleksach DMC. Na podstawie wyników badań z wykorzystaniem absorpcji rentgenowskiej (XAS) stwierdzono, że centrum aktywne katalizatora stanowi atom cynku. W bezpośrednim sąsiedztwie atomów Zn wykryto obecność atomów Cl, natomiast w najbliższych sferach koordynacyjnych atomu Zn nie wykryto atomów tlenu.