Transition probabilities in the X(5) candidate 122^{122}Ba

To investigate the possible X(5) character of 122Ba, suggested by the ground state band energy pattern, the lifetimes of the lowest yrast states of 122Ba have been measured, via the Recoil Distance Doppler-Shift method. The relevant levels have been populated by using the 108Cd(16O,2n)122Ba and the 112Sn(13C,3n)122Ba reactions. The B(E2) values deduced in the present work are compared to the predictions of the X(5) model and to calculations performed in the framework of the IBA-1 and IBA-2 models

Optimization of concentrations of Ca+ and Mg++ for myocardial protection for neonates and infants – an overview

IMSP Spitalul Clinic RepublicanÎn timpul clampării aortei (Ao) cu circulaţia extracorporeală (CEC), inima este izolată de perfuzia restului corp uman. Chirurgul este dator de a asigura protecţia adecvată a miocardului, şi în acelaş timp să dispună de cîmpul operator ideal pentru corecţia chirurgicală cît mai bună posibilă. Este importanta optimizarea concentraţiilor ionilor Ca+ şi Mg++ pentru prevenirea disfuncţiei postoperatorii a cordului. Acest reviu concretizează principiile protecţiei miocardului şi ultimele succese ale tehnicilor de protecţie a miocardului în timpul CEC- ului la copiii mici. During aortic clamp with extracorporeal circulation (ECC), the heart is isolated from the rest of the human body perfuzion. The surgeon is obliged to ensure the adequate protection of the heart muscle, and at the same time to have clean operating field for surgical correction as best possible. Optimisation of concentrations of Ca + and Mg ++ is important for prevention of postoperative cardiac insufficiency. This review embodies the principles of the protection of the heart muscle and recent successes of the chemical techniques of heart muscle perfusion during the ECC in small children

In-beam fast-timing measurements in 103,105,107Cd

Fast-timing measurements were performed recently in the region of the medium-mass 103,105,107Cd isotopes, produced in fusion evaporation reactions. Emitted gamma-rays were detected by eight HPGe and five LaBr3:Ce detectors working in coincidence. Results on new and re-evaluated half-lives are discussed within a systematic of transition rates. The $7/2_1^+$ states in 103,105,107Cd are interpreted as arising from a single-particle excitation. The half-life analysis of the $11/2_1^-$ states in 103,105,107Cd shows no change in the single-particle transition strength as a function of the neutron number

Nuclear photonics at ultra-high counting rates and higher multipole excitations

Next-generation gamma beams beams from laser Compton-backscattering facilities like ELI-NP (Bucharest)] or MEGa-Ray (Livermore) will drastically exceed the photon flux presently available at existing facilities, reaching or even exceeding 10^13 gamma/sec. The beam structure as presently foreseen for MEGa-Ray and ELI-NP builds upon a structure of macro-pulses (~120 Hz) for the electron beam, accelerated with X-band technology at 11.5 GHz, resulting in a micro structure of 87 ps distance between the electron pulses acting as mirrors for a counterpropagating intense laser. In total each 8.3 ms a gamma pulse series with a duration of about 100 ns will impinge on the target, resulting in an instantaneous photon flux of about 10^18 gamma/s, thus introducing major challenges in view of pile-up. Novel gamma optics will be applied to monochromatize the gamma beam to ultimately Delta E/E~10^-6. Thus level-selective spectroscopy of higher multipole excitations will become accessible with good contrast for the first time. Fast responding gamma detectors, e.g. based on advanced scintillator technology (e.g. LaBr3(Ce)) allow for measurements with count rates as high as 10^6-10^7 gamma/s without significant drop of performance. Data handling adapted to the beam conditions could be performed by fast digitizing electronics, able to sample data traces during the micro-pulse duration, while the subsequent macro-pulse gap of ca. 8 ms leaves ample time for data readout. A ball of LaBr3 detectors with digital readout appears to best suited for this novel type of nuclear photonics at ultra-high counting rates.Comment: 4 pages, 1 figure, 1 tabl

g factors of coexisting isomeric states in Pb-188

The $g$ factors of the ${12}^{+}$, {11}^{\ensuremath{-}}, and {8}^{\ensuremath{-}} isomeric states in $^{188}\mathrm{Pb}$ were measured using the time-differential perturbed angular distribution method as g({12}^{+})=\ensuremath{-}0.179(6), g({11}^{\ensuremath{-}})=+1.03(3), and g({8}^{\ensuremath{-}})=\ensuremath{-}0.037(7). The $g$ factor of the ${12}^{+}$ state follows the observed slight down-sloping evolution of the $g$ factors of the ${i}_{13/2}^{2}$ neutron spherical states with decreasing $N$. The $g$ factors of the {11}^{\ensuremath{-}} and {8}^{\ensuremath{-}} isomers proposed as oblate and prolate deformed states, respectively, were interpreted within the rotational model, using calculated and empirical $g$ factor values for the involved single-particle orbitals

Transition rates and nuclear structure changes in mirror nuclei 47Cr and 47V

Lifetime measurements in the mirror nuclei 47Cr and 47V were performed by means of the Doppler-shift attenuation method using the multidetector array EUROBALL, in conjunction with the ancillary detectors ISIS and the Neutron Wall. The determined transition strengths in the yrast cascades are well described by full pf shell model calculations.Comment: Latex2e, 11 pages, 3 figure

Surgical management of exudative pericarditis after open heart surgery

IMSP Spitalul Clinic RepublicanArticolul este dedicat problemelor de diagnostic şi tratament chirurgical al pericarditei exudative postoperatorii. Patogenia și evoluția postoperatorie a pacienților cu acumulări de lichid în pericard a fost analizată prin prizma prezenței bolilor concomitente, duratei circulației extracorporale, terapiei cu anticoagulante şi antiinflamatorii nesteroide, analizei bacteriologice a lichidului. A fost propus un management terapeutic în rezolvarea pericarditelor exudative după operaţiile pe cord deschis.The article is dedicated to postoperative exudative pericarditis, the diagnostic and surgical treatment problems. The postoperative evolution of the patients with accumulation of liquid in pericardium was analyzed through the presence of consequent pathologies, extracorporeal circulation duration, anticoagulant and anti-inflammatory therapy, bacteriologic analysis of the liquid. We proposed a therapeutic ma nagement of exudative pericarditis treatment after open heart operations

Synthesis of Multiwall Carbon Nanotubes by Inductive Heating CCVD

The CCVD syntheses of MWCNTs from acetylene on Fe:Co:CaCO 3 and Fe:Co:CaO were performed using two different methods of heating: outer furnace and inductive heating. The comparative analysis of the MWCNTs obtained by the two methods show that the tubes grown in inductive heating have smaller diameters (5-25 nm), with fewer walls and aspect ratio of the order of hundreds. The ratio of outer to inner diameter (od/id) is ranging between 2 and 2.5. Inductively assisted CCVD is a very attractive method because of the major advantages that it presents, like low energetic consumption, thinner, well crystallized and more uniform tubes

Surgical management of exudative pericarditis after open heart surgery

IMSP Spitalul Clinic RepublicanArticolul este dedicat problemelor de diagnostic şi tratament chirurgical al pericarditei exudative postoperatorii. Patogenia şi evoluţia postoperatorie a pacienţilor cu acumulări de lichid în pericard a fost analizată prin pizma prezenţei bolilor concomitente, duratei circulaţiei extracorporale, terapiei cu anticoagulante şi antiinflamatorii nesteroide, analizei bacteriologice a lichidului. A fost propus un management terapeutic în rezolvarea pericarditelor exudative după operaţiile pe cord deschis. The article is dedicated to postoperative exudative pericarditis, the diagnostic and surgical treatment problems. The postoperative evolution of the patients with accumulation of liquid in pericardium was analyzed through the presence of consequent pathologies, extracorporeal circulation duration, anticoagulant and anti-inflammatory therapy, bacteriologic analysis of the liquid. We proposed a therapeutic management of exudative pericarditis treatment after open heart operations

Half-life of the I Π = 4 - intruder state in 34 P: M 2 transition strengths approaching the island of inversion

The half-life of the 2305-keV, I?=4 (-) intruder state in 34P has been measured as t 1/2=2.0(1) ns using ?-ray coincidence, fast-timing techniques with the Bucharest HPGe and LaBr 3:Ce detector array. Excited states in 34P were populated using the 18O (18O,pn )34P fusion-evaporation reaction at a beam energy of 36 MeV. Reduced transition probabilities have been calculated for different values of the M2/E3 mixing ratio, ? E3/M2, and compared with shell-model estimates. For small values of the mixing ratio, the B(M2) value was found to be consistent with similar transitions associated with the occupation of neutron f 7/2 configurations in this mass region. � 2012 American Physical Society