Centrifugal stretching from lifetime measurements in the 170Hf ground state band

Centrifugal stretching in the deformed rare-earth nucleus 170Hf is investigated using high-precision lifetime measurements, performed with the New Yale Plunger Device at Wright Nuclear Structure Laboratory, Yale University. Excited states were populated in the fusion-evaporation reaction 124Sn(50Ti,4n)170Hf at a beam energy of 195 MeV. Recoil distance doppler shift data were recorded for the ground state band through the J=16+ level. The measured B(E2) values and transition quadrupole moments improve on existing data and show increasing β deformation in the ground state band of 170Hf. The results are compared to descriptions by a rigid rotor and by the confined β-soft rotor model. © 2013 American Physical Society

Low-energy structure of the even-A 96−104 Ru isotopes via g-factor measurements

The transient-field-perturbed angular correlation technique was used with Coulomb excitation in inverse kinematics to perform a systematic measurement of the g factors of the first excited 21+ states in the stable even-A isotopes Ru96-104. The measurements have been made relative to one another under matched kinematic conditions and include a measurement of g(21+)=+0.47(3) in Ru96

Enhanced Mixing of Intrinsic States in Deformed Hf Nuclei

Excited low-spin, nonyrast states in 170,172,174Hf were populated in β + /∈decay and studied through off-beam γ-ray spectroscopy. New coincidence data allowed for a substantial revision of the level schemes of Hf170,172 and a confirmation of the level scheme of 174Hf. The Hf isotopes represent a unique situation in which a crossing of collective intrinsic excitations occurs, enhancing significantly the effects of mixing. Using branching ratios from excited 2+ states, this mixing is followed and studied. The resulting mixing matrix elements are found to be ∼30 keV—an order of magnitude larger than estimated previously for nearby nuclei. In the case of 170Hf, the 2+β and 2+γlevel are shown to be completely mixed

Review of body image and some of contributing factors in Iranian population

Body image is the perception of individuals of their own body and it can be affected by many variables such as culture, social pressure, and media, but it is not limited to these factors. Body image disturbances are important because they lead to severe physical or psychological health problems. Development of body image dissatisfaction in Eastern communities has been increased in the past years. Despite many studies in Asian societies, In Iran, studies are scattered and limited. Our goal is a better understanding of this matter in Iran. A review of scientific literature about Body Image and Iran was conducted inPubMed, Web of Science, Science Direct, Scopus, and ProQuest, also in Persian scientific databases such as Scientific Information Database (SID) and Thematic Guide to Iranian Publications (MAGIRAN). This search has been conducted in January 2018. Out of 389 articles, 44 of them were selected. In these articles, study period, sample characteristics, type of study, contributing variables, type of statistical analysis, and the main result of each article were extracted. Despite using different methods for detection of body dissatisfaction, results showed that this problem has a high prevalence in Iranian population. Contributing factors were also similar to the world findings. Review of studies regarding body dissatisfaction in Iran, revealed a high prevalence of this problem. It seems there is a need for interventional programs to prevent the negative consequences of body dissatisfaction, especially in teenagers and young people. Future studies with scientific or longitudinal design, which lead to better results, are recommended. © 2019 International Journal of Preventive Medicine | Published by Wolters Kluwer - Medknow

First experimental test of X(5) critical-point symmetry in the A ∼ 130 mass region: Low-spin states and the collective structure of 130 Ce

Excited, low-spin states in Ce130 are populated in the ?+/? decay of Pr130 and studied through off-beam ?-ray spectroscopy at the Yale moving tape collector. New coincidence data lead to the construction of a substantially revised level scheme. The low-lying states of Ce130 are compared with the predictions of the X(5) critical-point model and the X(5)-?4 model, and the latter is found to give better agreement with the data in terms of energies. Discrepancies in the relative B(E2) values in Ce130 and the geometrical models suggest that the ? degree of freedom may play an important role in this mass region. � 2008 The American Physical Society

β decay spectroscopy of light Nd isotopes

Excited states in 132,134Nd were populated in the ?+/? decay of 132,134Pm and studied through off-beam ?-ray spectroscopy. Level spins and multipole mixing ratios of transitions were determined through an angular correlation analysis. In 132Nd, a new excited 0+ state is identified and in 134Nd the level scheme is significantly extended. Differences in the location of the 02+ state and the ? bandhead above and below N=82 suggest that the lighter isotopes are much more ?-soft than the heavier Nd and that a first-order phase transitional description is not applicable in the N<82 region. � 2013 American Physical Society

β decay spectroscopy of light Nd isotopes

Excited states in 132,134Nd were populated in the β+/ε decay of 132,134Pm and studied through off-beam γ-ray spectroscopy. Level spins and multipole mixing ratios of transitions were determined through an angular correlation analysis. In 132Nd, a new excited 0+ state is identified and in 134Nd the level scheme is significantly extended. Differences in the location of the 02+ state and the γ bandhead above and below N=82 suggest that the lighter isotopes are much more γ-soft than the heavier Nd and that a first-order phase transitional description is not applicable in the