Search results for "XE"
showing 10 items of 9661 documents
Excess electronic recoil events in XENON1T
2020
We report results from searches for new physics with low-energy electronic recoil data recorded with the XENON1T detector. With an exposure of 0.65 t-y and an unprecedentedly low background rate of $76\pm2$ events/(t y keV) between 1 and 30 keV, the data enables sensitive searches for solar axions, an enhanced neutrino magnetic moment, and bosonic dark matter. An excess over known backgrounds is observed at low energies and most prominent between 2 and 3 keV. The solar axion model has a 3.4$\sigma$ significance, and a 3D 90% confidence surface is reported for axion couplings to electrons, photons, and nucleons. This surface is inscribed in the cuboid defined by $g_{ae}<3.8 \times 10^{-12}$,…
Rasizm w Polsce w kontekście problemów migracyjnych. Próba diagnozy
2017
Tekst dotyczy zjawiska rasizmu we wspó³czesnej Polsce, które zgodnie z tezą autora tekstu, w ostatnich latach się nasila. W wyniku co najmniej dwóch istotnych procesów społecznych (migracje z Ukrainy oraz rozwój współpracy międzynarodowej w obszarze szkolnictwa wyższego) znacząco wzrosła liczba obcokrajowców w raczej monokulturowej do tej pory Polsce. Oprócz tego w związku z tzw. kryzysem uchodźczym oraz zamachami terrorystycznymi w Zachodniej Europie, obcokrajowcy, zwłaszcza zaś muzułmanie, stali się mocno widoczni w polskich mediach. Kontekst ich przedstawiania i bezpośrednie łączenie Islamu z terroryzmem sprawia, że rosną w Polsce nastroje ksenofobiczne i rasistowskie. Zjawisko rasizmu j…
New floristic data of alien vascular plants from Sicily
2019
New records of Commelina communis, Euphorbia hypericifolia, Melia azedarach, Nicotiana tabacum, and Xanthoceras sorbifolium are reported for the Sicilian flora.
Valutazione degli effetti del dimetilamino-partenolide (DMAPT) in vivo in xenotrapianti di cellule di carcinoma mammario MDA-MB231
2014
Obiettivo degli studi condotti in questa tesi è stato quello di valutare l’efficacia del Partenolide in vivo in xenotrapianti ottenuti da cellule di carcinoma mammario triplo negativo MDA-MB231 in topi immunodeficienti. Lo studio è stato condotto impiegando il dimetilamino-partenolide (DMAPT), un analogo del partenolide più solubile. I risultati delle ricerche hanno dimostrato che la somministrazione di DMAPT a topi immunodeficienti portatori di xenotrapianti di cellule MDA-MB231 determina una significativa inibizione della crescita dei tumori e un incremento della sopravvivenza degli animali. Analisi immunoistochimiche condotte su preparati istologici ottenuti dai tumori hanno anche dimost…
Efecto del clorhidrato de pilocarpina como estimulante de la producción salival en pacientes sometidos a radioterapia de cabeza y cuello
2004
Objetivo: Estudiar los efectos del clorhidrato de pilocarpina sobre la producción salival total en pacientes mexicanos con hiposalivación secundaria a radioterapia de la región de cabeza y cuello. Diseño del estudio: Previo consentimiento informado, 20 pacientes con hiposalivación secundaria a radioterapia de la región de cabeza y cuello (> 40 Gy) fueron evaluados mediante el Test de Saliva Global (TSG) antes, durante y al final de 10 semanas de tratamiento con clorhidrato de pilocarpina (5 mg 3 veces al día). La sintomatología relacionada a la hiposalivación fue evaluada mediante un cuestionario con escala ordinal de 0 a 10. La cantidad de saliva producida al final del tratamiento se compa…
Espectro de las manifestaciones orales de VIH/SIDA en la región de Perm (Rusia) e identificación de lesiones orales linguales ulceronecrotizantes ind…
2004
-Objetivo: estudiar la frecuencia y el espectro de las manifestaciones orales de consumidores de drogas infectados por VIH en la región de Perm. -Sujetos: 104 consumidores de droga seropositivos (69 hombres, 35 mujeres; edades desde 15 a 32; 13 co-infectados con virus de la hepatitis) y 13 consumidores de droga con SIDA (7 hombres, 6 mujeres; edades entre 16 y 37; 12 co-infectados con virus de la hepatitis). -Resultados: las formas más frecuentes de lesiones de la mucosa oral en el grupo de pacientes infectados por el VIHcandidiasis (32.7%), lesiones herpéticas (15.4%), queilitis glandular (3.9%), estomatitis aftosa recidivante (2%). La linfadenopatía regional fue observada en el 31% de los…
Groups as Persons? : A Suggestion for a Hegelian Turn
2017
Christian List and Philip Pettit have recently argued for a performative theory of personhood in which all agents who manage to perform in the space of obligations are taken as persons. Based on this account they claim that group agents are also persons. This theory has been challenged on the grounds of its historical accuracy, lack of political relevance, and contestability of the concept of personhood. This paper aims to take a new perspective on the debate by approaching it through the Hegelian idea of recognition. The claim is that recognition theory provides a multi-dimensional view of personhood that gives a clearer account of what is at stake with collective personhood. peerReviewed
Physical activity from adolescence to young adulthood: patterns of change, and their associations with activity domains and sedentary time
2021
Background Longitudinal studies demonstrate an average decline in physical activity (PA) from adolescence to young adulthood. However, while some subgroups of adolescents decrease activity, others increase or maintain high or low activity. Activity domains may differ between subgroups (exhibiting different PA patterns), and they offer valuable information for targeted health promotion. Hence, the aim of this study was to identify PA patterns from adolescence to young adulthood; also to explore the associations of (i) changes in PA domains and in sedentary time, (ii) sociodemographic factors, and (iii) self-rated health with diverging PA patterns. Methods The observational cohort study data …
The importance of social skills in the integration of young people : an analysis through a mixed approach
2021
International audience
Cadmium Metal–Organic Frameworks Based on Ditopic Triazamacrocyclic Linkers: Unusual Structural Features and Selective CO 2 Capture
2017
International audience; Two three-dimensional cadmium metal organic frameworks with general formula [Cd-2(L-1)(H2O)(3)](NO3)(0.7)(HCOO)(0.2)Br-0.1 (Cd2L1, L-1 = 1,4,7-tris(4-carboxybenzy1)-1,4,7-triazacyclononane) and Cd(HL2)(H2O)(2) (CdL2, L-2 = 1,4,7-tris(3-(4-benzoate)prop-2-yn-1-yl)-1,4,7-triazacydononane) based on 1,4,7-triazacyclononane N-functionalized by different arylcarboxylic acids were prepared under solvothermal conditions and characterized by single crystal X-ray analysis and porosity measurements. The crystal structure of Cd2L1 reveals a cationic net with a bcs topology,. and nodes are constituted by dinuclear cadmium complexes, in which each cadmium atom adopts a hexacoordin…