342 research outputs found
Omul in contextul relației cu divinitatea și biserica
No full textÎn articol este elucidată problema conștiinței religioase a populației în baza
investigațiilor și sondajelor sociologice din ultimul timp; este caracterizat impactul credinței în
Dumnezeu în întărirea simțului de bine al credincioșilor; este prezentată atitudinea oamenilor
față de Biserică și, totodată, unele cauze care influențează nivelul scăzut al frecventării
lăcașurilor de cult în Republica Moldova.The article clarifies the issue of the religious conscience of the population based on
recent sociological investigations and surveys. The impact of faith in God in strengthening the
believers' sense of well-being is also characterized. The author presents the attitude of the people
towards the Church and, at the same time, some causes that influence the low level of attendance
at places of worship in the Republic of Moldova
Diagnostic possibilities in endometriosis and their practical value
No full textIntroducere. Endometrioza profundă (EP), ca cea mai dureroasă formă de endometrioză, reprezintă o patologie debilitantă, adesea asociată cu erori de diagnostic şi un impact major asupra calităţii vieţii pacientelor. Laparoscopia nu mai este considerată standardul de aur în diagnosticarea endometriozei. Scop. Identificarea simptomelor clinice şi posibilităţilor ecografice în endometrioza profundă si endo-metriomele ovariene pentru implementarea diagnosticului neinvaziv al patologiei. Material şi metode. Am realizat un studiu prospectiv comparativ pe paciente diagnosticate laparoscopic cu endometrioză, în două loturi: L1 - 85 cu EP, L2 - 105 fără EP. Clasificarea #Enzian a fost utilizată pentru stratificarea cazurilor şi analiza simptomatologiei. S-au calculat sensibilitatea (Se) şi specificitatea (Sp) ecografiei transvaginale. Rezultate. Corelaţia statistică a fost confirmată între compartimentele #Enzian A, B, FA, FI şi semne de 4D, cu excepţia disuriei, între A, C şi tulburări de defecaţie, B şi tenesme rectale, FA şi menometroragii, tulburări de defe-caţie, FB şi disurie, hematurie, tenesme vezicale, FU şi dureri lombare, F... şi hemoptizie, dureri toracice, semn frenicus. Ecografia a demonstrat Se înaltă pentru endometriomele de 91,6%, IC95%: 86,1-95,5. Se ecografiei în EP: pentru FA -93,3%, A - 59,57%, B - 71,43%, FB - 33,33%, FI - 62,50%, F... - 72,73%. Sp ecografiei pentru endometrioză, indiferent de localizare, a fost înaltă de 92,1%, IC95%: 78,6-98,3. Concluzii. Valoarea înaltă a semnelor clinice în asociere cu eco-grafia demonstrată prin Sp de 90% pentru endometriom şi EP, Se de 90% pentru endometriom şi de 33-93% pentru EP necesită confirmare multidisciplinară (RMN), ce permite implementarea diagnosticului neinvaziv al endometriozei în practica cotidiană.Introduction. Deep infiltrating endometriosis (DIE), as the most painful fenotipe of endometriosis, is a debilitating condition which is often associated with diagnostic errors and a major impact on patients’ quality of life. Laparoscopy is no longer considered the gold standard for diagnosing endometriosis. Objective. Identification of clinical symptoms and ultrasound markers in deep endometriosis and ovarian endometriomas, in order to support the implementation of non-invasive diagnostic approaches. Material and methods. We conducted a prospective study on patients diagnosed laparoscopically with endometriosis, divided into two groups: L1 - 85 with DIE, and L2 - 105 without DIE. The #Enzian classification was used to stratify the cases and analyze symptomatology. Transvaginal ultrasound sensitivity (Se) and specificity (Sp) were calculated. Results. A statistically correlation was confirmed between Enzian compartments A, B, FA, FI and the presence of 4D symptoms (excluding dysuria); compartment A, C and defecation disorders, B and rectal tenesmus, FA and menometrorrhagia, defecation issues, FB and dysuria, hematuria, bladder tenesmus, FU and lumbar pain, F... and hemoptysis, chest pain, phrenic symptom. Ultrasound showed high Se for ovarian endome-triomas (91.6%, 95% CI: 86.1-95.5). Se for DIE: FA - 93.3%, A - 59.6%, B - 71.4%, FB - 33.3%, FI - 62.5%, F... - 72.7%. The overall Sp of ultrasound for endometriosis, regardless of location, was high at 92.1% (95% CI: 78.6-98.3). Conclusion. A high diagnostic value of clinical signs combined with ultrasound is demonstrated by Sp of 90% for endometrio-ma and DIE, Se of 90% for endometrioma, of 33-93% for DIE, which requires multidisciplinary confirmation by MRI, allowing the implementation of non-invasive diagnosis of endometriosis
The Q(2) evolution of the hadronic photon structure function F-2(gamma) at LEP RID C-2983-2009 RID C-4549-2008 RID C-5719-2008
No full textNew measurements at a centre-of-mass energy root s similar or equal to 183 GeV of the hadronic photon structure function F-2(gamma)(x) in the Q(2) interval, 9 GeV2 less than or equal to Q(2) less than or equal to 30 GeV2, are presented. The data, collected in 1997 with the L3 detector, correspond to an integrated luminosity of 51.9 pb(-1). Combining with the data taken at a centre-of-mass energy of 91 GeV, the evolution of F-2(gamma) With Q(2) is measured in the Q(2) range from 1.2 GeV2 to 30 GeV2. F-2(gamma) shows a linear growth with ln Q(2); the value of the slope alpha(-1)d F-2(gamma)(Q(2))/dlnQ(2) is measured in two x bins from 0.01 to 0.2 and is somewhat higher than predicted. (C) 1999 Published by Elsevier Science B.V. All rights reserved
Study of the hadronic photon structure function at LEP
No full textThe hadronic photon structure function is studied in the reaction at LEP with the L3 detector. The data, collected from 1991 to 1995 at a centre-of-mass energy \sqrt{s} \simeq 91 \GeV, correspond to an integrated luminosity of 140~pb. The photon structure function is measured in the interval 1.2 \GeV^2 \leq Q^2 \leq 9.0 \GeV^2 and the interval . \FF shows a linear growth with . The value of the slope \alpha^{-1}\mathrm{d}\FF(Q^2)/\mathrm{d}\ln{Q^2} is measured to be
Pentylcyanobiphenyl as test molecule for the acid sites of powdered titanium(IV) oxides: sensitivity of core levels to the local structure
No full textPentylcyanobiphenyl was used successfully as a test molecule to show the acid sites upon some commercial nanoscaled titanium dioxide materials. The surface interactions were investigated in detail using methods sensitive to the surface or to the bulk material, e.g., X-ray photoelectron spectroscopy (XPS), infrared spectroscopy, and thermal analysis. Different oxidation states of surface Ti ions were revealed. Several species were found: the majority were bonded through the nitrogen lone pair of the cyano group, but bonding to the surface OH groups by benzene π electrons might also appear. The N 1s lines of adsorbed 5CB were able to distinguish between Lewis acid and relatively weak Brønsted acid sites
Photon structure functions and azimuthal correlations of lepton pairs in tagged collisions
No full textMeasurements of the QED structure of the photon based on the reaction ee to ee gamma /sup (*)/(P/sup 2/) gamma *(Q/sup 2/) to ee mu mu are discussed. This review is an update of the discussion of the results on the QED structure of the photon and covers the published measurements of the photon structure functions F/sub 2//sup gamma /, F/sub A//sup gamma / and F/sub B//sup gamma / and of the differential cross-section d sigma /dx for the exchange of two virtual photons. (10 refs)
Test of CP invariance in decay
No full textWe report on the first test of CP invariance in Z decays with hard photon radiation. The data recorded with the L3 detector at centre-of-mass energies near the Z resonance are used to search for CP violation in the reaction \mathrm{e^+e^-}\rightarrow\mu^+\mu^-\gam ma. No evidence for CP violation is found and limits on the CP-violating form factors and are derived
The Q(2) evolution of the hadronic photon structure function F-2(gamma) at LEP
No full textNew measurements at a centre-of-mass energy of 183 GeV of the hadronic photon structure function F2(x) in the Q2 interval, 9 GeV2 Q2 30 GeV2, are presented. The data, collected in 1997, with the L3 detector, correspond to an integrated luminosity of 51.9 pb-1. Combining with the data taken at centre-of-mass energies of 91 GeV, the evolution of F2 with Q2 is measured in the Q2 range from 1.2 GeV2 to 30 GeV2. F2 shows a linear growth with ln(Q2); the value of the slope (alpha-1)dF2(Q2)/dln(Q2) is measured in two x bins from 0.01 to 0.2 and is higher than predictions
Final State in Two-Photon Collisions and Implications for Glueballs
No full textThe \mbox{K}^0_{\rm S}\mbox{K}^0_{\rm S} final state in two-photon collisions is studied with the L3 detector at LEP. The mass spectrum is dominated by the formation of the (1525) tensor meson in the helicity-two state with a two-photon width times the branching ratio into of . A clear signal for the formation of the f(1710) is observed and it is found to be dominated by the spin-two helicity-two state. No resonance is observed in the mass region around and an upper limit of at 95\% C.L. is derived for the two-photon width times the branching ratio into \mbox{K}^0_{\rm S}\mbox{K}^0_{\rm S} for the glueball candidate .The K 0 S K 0 S final state in two-photon collisions is studied with the L3 detector at LEP. The mass spectrum is dominated by the formation of the f ′ 2 (1525) tensor meson in the helicity-two state with a two-photon width times the branching ratio into K K ̄ of 76±6±11 eV. A clear signal for the formation of the f J (1710) is observed and it is found to be dominated by the spin-two helicity-two state. No resonance is observed in the mass region around 2.2 GeV and an upper limit of 1.4 eV at 95% C.L. is derived for the two-photon width times the branching ratio into K 0 S K 0 S for the glueball candidate ξ (2230).The K0s K0s final state in two-photon collisions is studied with the L3 detector at LEP. The mass spectrum is dominated by the formation of the f_2'(1525) tensor meson in the helicity-two state with a two-photon width times the branching ratio into K Kbar of 76 +- 6 +- 11 eV. A clear signal for the formation of the f_J(1710) is observed and it is found to be dominated by the spin-two helicity-two state. No resonance is observed in the mass region around 2.2 GeV and an upper limit of 1.4 eV at 95% C.L. is derived for the two-photon width times the branching ratio into K0s K0s for the glueball candidate xi(2230)
Light Resonances in and final states in collisions at LEP
No full textThe and final states are studied with the L3 detector at LEP using data collected at centre-of-mass energies from 183 GeV up to 202 GeV. The mass spectrum of the final state shows an enhancement around 1470 MeV, which is identified with the pseudoscalar meson . This state is observed in collisions for the first time and its two-photon width is measured to be eV. Clear evidence is also obtained for the formation of the axial vector mesons (1420) and (1285). In the channel the (1285)} is observed, and upper limits for the formation of and are obtained.The e + e − →e + e − K S 0 K ± π ∓ and e + e − →e + e − ηπ + π − final states are studied with the L3 detector at LEP using data collected at centre-of-mass energies from 183 GeV up to 202 GeV. The mass spectrum of the K 0 S K ± π ∓ final state shows an enhancement around 1470 MeV, which is identified with the pseudoscalar meson η (1440). This state is observed in γγ collisions for the first time and its two-photon width is measured to be Γ γγ (η(1440))× BR (η(1440)→ K K ̄ π)=212±50 ( stat. )±23 (sys.) eV. Clear evidence is also obtained for the formation of the axial vector mesons f 1 (1420) and f 1 (1285). In the ηπ + π − channel the f 1 (1285) is observed, and upper limits for the formation of η (1440) and η (1295) are obtained.The e+e- -> e+e- Ks K+- pi-+ e+e- -> e+e- eta pi+ pi- and final states are studied with the L3 detector at LEP using data collected at centre-of-mass energies from 183 GeV up to 202 GeV. The mass spectrum of the Ks K+- pi-+ final state shows an enhancement around 1470MeV, which is identified with the pseudoscalar meson eta(1440). This state is observed in gamma gamma collisions for the first time and its two-photon width is measured to be Gamma_gamma gamma(eta(1440))x BR(eta(1440)->KK pi)= 212 +/- 50(stat) +/- 23(sys)eV. Clear evidence is also obtained for the formation of the axial vector mesons f1(1420) and f1(1285). In the eta pi+ pi- channel the f1(1285) is observed, and upper limits for the formation of eta(1440) and eta(1295) are obtained
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