Spectroscopy and characterisation of high multipolarity transitions depopulating the metastable state in ⁵³Fe

Spectroscopy and characterisation of high multipolarity transitions depopulating the metastable state in ⁵³Fe Abstract: This thesis reports the observation of high multipolarity transitions depopulating the T1=2 = 2.54 minute, Jπ = 19=2⁻ state in ⁵³Fe, populated via the ⁵¹V(⁶Li,4n) and ²⁴Mg(³²S,2pn) reactions at 50 and 90 MeV, respectively. Excited states were populated using beams pulsed on multi-minute timescales delivered from the ANU 14UD accelerator, with γ-ray decays collected over 20 minute cycles. A time subtraction of the latter 10 minutes of data collection from the first 10 minutes, obtained relatively clean spectra, free from background contamination. Sum-coincidence contributions to the weak E6 and M5 decay branches have been quantified using two different detector geometries, while several methods for the estimation and measurement of sum-coincidence intensity have been employed, obtaining final γ-ray branching ratios of 0.00059(7) and 0.0112(7) for the E6 andM5 transitions, respectively. A comprehensive reviewof E4,M5 and E6 transitions in atomic nuclei has been attempted and the nature of these transitions has been discussed within the shell model framework

Effect of students\u27 expectations

This research suggests that public disclosure of evaluations best be curtailed

Where we are on θ13\theta_{13}: addendum to "Global neutrino data and recent reactor fluxes: status of three-flavour oscillation parameters"

In this addendum to arXiv:1103.0734 we consider the recent results from long-baseline $\nu_\mu\to\nu_e$ searches at the T2K and MINOS experiments and investigate their implications for the mixing angle $\theta_{13}$ and the leptonic Dirac CP phase $\delta$. By combining the $2.5\sigma$ indication for a non-zero value of $\theta_{13}$ coming from T2K data with global neutrino oscillation data we obtain a significance for $\theta_{13} > 0$ of about $3\sigma$ with best fit points $\sin^2\theta_{13} = 0.013(0.016)$ for normal (inverted) neutrino mass ordering. These results depend somewhat on assumptions concerning the analysis of reactor neutrino data.Comment: 5 pages, 2 figures and 1 tabl

Nursing Pathway Project: Finding Solutions to the Underrepresentation of Men in Nursing

Only 10 percent of nurses are men. This panel presentation will interpret the results of a narrative review of the literature regarding the persistent underrepresentation of men in nursing, analyzing male high school students’ perceptions of nursing as a professional career choice, high school counselors’ perceptions of nursing as a professional career choice for secondary school students, and the factors affecting men’s decision-making toward Nursing as a profession. Plans for research leading to recommendations from the organization will also be discussed. The persistent underrepresentation of men in the profession is a critical issue. Talent from half the population is not being accessed to advance the nursing profession and nursing science. The Nursing Pipeline Project aims to extend and broaden the pipeline for men interested in the nursing profession

Global fits to neutrino oscillation data

I summarize the determination of neutrino oscillation parameters within the three-flavor framework from world neutrino oscillation data with date of May 2006, including the first results from the MINOS long-baseline experiment. It is illustrated how the determination of the leading "solar" and "atmospheric" parameters, as well as the bound on $\theta_{13}$ emerge from an interplay of various complementary data sets. Furthermore, I discuss possible implications of sub-leading three-flavor effects in present atmospheric neutrino data induced by $\Delta m^2_{21}$ and $\theta_{13}$ for the bound on $\theta_{13}$ and non-maximal values of $\theta_{23}$, emphasizing, however, that these effects are not statistically significant at present. Finally, in view of the upcoming MiniBooNE results I briefly comment on the problem to reconcile the LSND signal.Comment: 5 pages, 5 figures, talk presented at the SNOW2006 workshop, Stockholm, 2-6 May 200

Mixing divalent ionic liquids : effects of charge and side-chains

Funding Information: EB acknowledges UK Engineering and Physical Sciences Research Council for funding of doctoral studies, MCG and LP thank the Institute of Chemistry at Clermont-Ferrand for the use of the densimeter and the viscometer. MCG and AvdB acknowledge the financial support of the project IDEXLYON of the University of Lyon (ANR-16-IDEX-0005). TW acknowledges an ERC Advanced Investigator Grant for funding. Publisher Copyright: © the Owner Societies 2021.We have prepared novel divalent ionic liquids (ILs) based on the bis(trifluoromethylsulfonyl)imide anion where two charged imidazolium groups in the cations are either directly bound to each other or linked by a single atom. We assessed the influence of the side-chain functionality and divalency on their physical properties and on the thermodynamics of mixing. The results indicate that shortening the spacer of a divalent IL reduces its thermal stability and increases its viscosity. Mixtures of divalent and monovalent ILs show small but significant deviations from ideality upon mixing. These deviations appear to depend primarily on the (mis)match of the nature and length of the cation side-chain. The non-ideality imposed by mixing ILs with different side-chains appears to be enhanced by the increase in formal charge of the cations in the mixture.publishersversionPeer reviewe

Spectroscopy and excited-state g factors in weakly collective Cd 111: Confronting collective and microscopic models

Background: The even cadmium isotopes near the neutron midshell have long been considered among the best examples of vibrational nuclei. However, the vibrational nature of these nuclei has been questioned based on E2 transition rates that are not consistent with vibrational excitations. In the neighboring odd-mass nuclei, the g factors of the low-excitation collective states have been shown to be more consistent with a deformed rotational core than a vibrational core. Moving beyond the comparison of vibrational versus rotational models, recent advances in computational power have made shell-model calculations feasible for Cd isotopes. These calculations may give insights into the emergence and nature of collectivity in the Cd isotopes.This research was supported in part by the Australian Research Council Grants No. DP120101417, No. DP130104176, No. DP140102986, No. DP140103317, No. DP170101673, and No. LE150100064. B.J.C., A.A., J.T.H.D., M.S.M.G., and T.J.G. acknowledge support of the Australian Government Research Training Program. Support for the ANU Heavy Ion Accelerator Facility operations through the Australian National Collaborative Research Infrastructure Strategy (NCRIS) program is acknowledged

Perturbed angular distributions with LaBr3 detectors: The g factor of the first 10+ state in Cd 110 reexamined

The time differential perturbed angular distribution technique with LaBr3 detectors has been applied to the Iπ = 11-/2 isomeric state (Ex=846 keV, τ=107 ns) in 107Cd, which was populated and recoil-implanted into a gadolinium host following the 98Mo(^12C, 3n)^107Cd reaction. The static hyperfine field strength of Cd recoil implanted into gadolinium was thus measured, together with the fraction of nuclei implanted into field-free sites, under similar conditions as pertained for a previous implantation perturbed angular distribution g-factor measurement on the Iπ=10+ state in 110Cd. The 110Cdg(10+) value was thereby reevaluated, bringing it into agreement with the value expected for a seniority-two vh11/2 configuration.This research was supported in part by the Australian Research Council Grants No. DP120101417, No. DP130104176, No. DP140102986, No. DP140103317, No. DP170101673, No. LE150100064, and No. FT100100991, and by The Australian National University Major Equipment Committee Grant No. 15MEC14

Stand Establishment and Persistence of Perennial Cool-Season Grasses in the Intermountain West and the Central and Northern Great Plains

The choice of plant materials is an important component of revegetation following disturbance. To determine the utility and effectiveness of various perennial grass species for revegetation on varied landscapes, a meta analysis was used to evaluate the stand establishment and persistence of 18 perennial cool-season grass species in 34 field studies in the Intermountain and Great Plains regions of the United States under monoculture conditions. Combined across the 34 studies, stand establishment values ranged from 79% to 43% and stand persistence values ranged from 70% to 0%. Intermediate wheatgrass (Thinopyrum intermedium [Host] Barkworth & D. R. Dewey), tall wheatgrass (Thinopyrum ponticum [Podp.] Z.-W. Liu & R.-C. Wang), crested wheatgrass (Agropyron spp.), Siberian wheatgrass (Agropyron fragile [Roth] P. Candargy), and meadow brome (Bromus riparius Rehmann) possessed the highest stand establishment (≥69%). There were no significant differences among the 12 species with the largest stand persistence values. Basin wildrye (Leymus cinereus (Scribn. & Merr.) A. Love), Altai wildrye (Leymus angustus [Trin.] Pilg.), slender wheatgrass (Elymus trachycaulus [Link] Gould ex Shinners), squirreltail (Elymus spp.), and Indian ricegrass (Achnatherum hymenoides [Roem. & Schult.] Barkworth) possessed lower stand persistence (≤32%) than the majority of the other species, and Indian ricegrass (0%) possessed the lowest stand persistence of any of the species. Correlations between environmental conditions and stand establishment and persistence showed mean annual study precipitation to have the most consistent, although moderate effect (r=~0.40) for establishment and persistence. This relationship was shown by the relatively poor stand establishment and persistence of most species at sites receiving less than 310 mm of annual precipitation. These results will be a tool for land managers to make decisions concerning the importance of stand establishment, stand persistence, and annual precipitation for revegetation projects on disturbed sites

Solid serous adenoma of the pancreas: a rare form of serous cystadenoma

Serous cystadenomas (SC) of the pancreas are uncommon benign cystic neoplasms that were first differentiated from mucinous cystadenomas in 1978 by Compagno and Oertel (1-3). Serous cystadenomas characteristically have a spongy gross appearance and are composed of innumerable tiny cysts lined by flattened cuboidal or polygonal cells with clear to pale eosinophilic cytoplasm atop of thin fibrous septae. Since 1978, five unique SC subtypes have been identified (4-5). Here we report a case of a solid serous adenoma, a rare serous cystadenoma subtype