Search results for "2ND"
showing 10 items of 38 documents
Factors influencing caries status and treatment needs among pregnant women attending a maternity hospital in Udaipur city, India.
2012
To estimate the prevalence and severity of dental caries along with the treatment needs; to determine the factors that influence dental caries status among pregnant women attending a district maternity hospital in Udaipur, India. Study design: Study sample comprised of 206 pregnant women attending a district maternity hospital in Udaipur, India. Clinical data were collected on dental caries by DMFT and treatment needs as described in World Health Organization Dentition status and Treatment needs. Results: The overall caries prevalence was 87%. Mean caries experience differed significantly among women in various trimesters, it was found to be 3.59 and 3.00 in 1st and 2nd trimester subjects r…
Statue ritratto "ideali" a Gortina
2018
The paper deals with the category of the “statua - rischen Idealporträts”, treating the few specimens until now recognizable within the large corpus of Roman sculptures collected in the city of Gortyn at Crete. A high-quality example of Hadrianic age was found by Prof. Antonino Di Vita, head of the large scale excavations in the site, during the 1988–1990 field season in the area NW of the “Praetorium”, adjoining the Caput aquae of the Roman aqueduct. Beside this spectacular find, two acephalous torsos of the “Diomedes” type are suitable to have been used for portrait statues, most probably for a couple of emperors. These latter are old surface finds in an area (W of the theatre near the Py…
Computational determination of the dominant triplet population mechanism in photoexcited benzophenone
2014
In benzophenone, intersystem crossing occurs efficiently between the S-1(n pi(star)) state and the T-1 state of dominant n pi(star) character, leading to excited triplet states after photoexcitation. The transition mechanism between S-1(n pi(star)) and T-1 is still a matter of debate, despite several experimental studies. Quantum mechanical calculations have been performed in order to assess the relative efficiencies of previously proposed mechanisms, in particular, the direct S-1 -> T-1 and indirect S-1 -> T-2(pi pi(star)) -> T-1 ones. Multiconfigurational wave function based methods are used to discuss the nature of the relevant states and also to determine minimum energy paths a…
Counter-propagating frequency mixing with Terahertz waves in diamond
2013
Frequency conversion by means of Kerr nonlinearity is one of the most common and exploited nonlinear optical processes in the UV, visible, IR, and mid-IR spectral regions. Here we show that wave mixing of an optical field and a terahertz wave can be achieved in diamond, resulting in the frequency conversion of the terahertz radiation either by sum- or difference-frequency generation. In the latter case, we show that this process is phase matched and most efficient in a counterpropagating geometry.
« Dijon, ville ouverte », juin 1940 : le témoignage d’Henri Drouot
2016
National audience
Pétain n’était pas juif !
2016
National audience
Zvaigžņotā Debess: 2007, Rudens
2007
Latvijas Zinātnes padome, Latvijas Universitāte
2nd and 3rd graders' attitudes towards the English language : attitudes before and after studying English at school
2014
Oppilaat aloittavat Suomessa englannin opiskelun useimmiten 3. luokalla. Englannin kieli on kuitenkin vahvasti läsnä Suomessa esimerkiksi mediassa ja ulkomaalaisten kautta. Monet perheet myös matkustavat ulkomaille. Siksi onkin syytä olettaa, että lapsilla on asenteita englannin kieltä kohtaan jo ennen kuin he aloittavat sen opiskelun koulussa. Asenteilla on suuri merkitys englannin kielen oppimistuloksien kannalta. Tämän tutkimuksen tavoitteena oli tutkia millaisia asenteita lapsilla on englannin kieltä kohtaan 2. luokan keväällä ja kuinka asenteet ovat muuttuneet 3. luokan kevääseen mennessä, kun he ovat opiskelleet englantia suurin piirtein yhden lukuvuoden verran. Tutkimus käsittelee my…
Upper limits on the isotropic gravitational-wave background from Advanced LIGO and Advanced Virgo's third observing run
2021
We report results of a search for an isotropic gravitational-wave background (GWB) using data from Advanced LIGO's and Advanced Virgo's third observing run (O3) combined with upper limits from the earlier O1 and O2 runs. Unlike in previous observing runs in the advanced detector era, we include Virgo in the search for the GWB. The results are consistent with uncorrelated noise, and therefore we place upper limits on the strength of the GWB. We find that the dimensionless energy density $\Omega_{\rm GW}\leq 5.8\times 10^{-9}$ at the 95% credible level for a flat (frequency-independent) GWB, using a prior which is uniform in the log of the strength of the GWB, with 99% of the sensitivity comi…
Non-linear optical, electrochemical and spectroelectrochemical properties of amphiphilic inner salt porphyrinic systems
2016
Three zwitterionic meso-substituted A3B- and AB2C-porphyrins containing one sulfonato alkylpyridinium substituent and three or two alkoxy-substituted phenyl groups were synthesized in good yield and fully characterized as to their physicochemical properties by a variety of techniques. This new series of inner salt donor-acceptor meso-substituted porphyrin derivatives were prepared for possible application as amphiphilic probes for membrane insertion in the area of combined second-harmonic and two-photon fluorescence cellular microscopy. To this end, the linear and nonlinear optical properties of the compounds were characterized, together with their electrochemical and spectroelectrochemica…