Temperatuuri määramine spektraalsel meetodil argooni atmosfäärirõhulises kõrgsagedusplasmas

http://tartu.ester.ee/record=b2654164~S1*es

Üliõpilaste praktikad ja motivatsioon nutiseadmest uudiste jälgimisel

https://www.ester.ee/record=b5238479*es

Kuude rahvapärased nimetused eesti keeles läänemeresoome taustal

http://www.ester.ee/record=b4582862*es

Temporal and spectral characteristics of atmospheric pressure argon plasma jet

An investigation of atmospheric pressure argon DBD plasma jet generated at 6 kHz sinusoidal voltage was carried out. On the basis of recorded electrical, optical and spectral characteristics spatiotemporal evolution of plasma jet in negative and positive half-cycles of voltage was studied. It was found that the dynamics of argon jet propagation outside the tube differs considerably from that found by other authors in the case of helium jet. The difference was explained with the influence of Penning reactions between metastable state He atoms and air molecules in He jet. On the basis of radiative transitions N2 (C-B, 0-0) and OH(A-X, 0-0) the rotational temperatures of N2(C, 0) and OH(A, 0) were estimated along jet axis. In regions where Ar-air mixing was negligible or low, the rotational temperatures of both molecules coincide and were close to the gas temperature

Physical inactivity and its associated disease prevalence among civil servants in Accra, Ghana: a retrospective study

Background: Disease prevalence has been documented in many professions across the world with varying prevalence rates. Studies have been done on disease prevalence among nurses, market women and traders, however, little is found on disease prevalence among the civil servants working at the Ministries in Ghana.Objectives: 1. To determine the disease prevalence among Ghanaian civil servants who patronize the civil service polyclinic, Accra.2. To determine the age distribution of disease prevalence among civil servants at the Ministries.3. To determine the gender distribution of disease prevalence among civil servants at the Ministries.Study design: A retrospective study design was used for this study.Methods: Records of civil servants were reviewed from the data storage system of the civil service polyclinic from January 2014 to December 2017. A sample size of 135 records was found eligible and included in the study as appropriate.Results: Out of a total of 135 sampled for the study, 56.3% were females, and 43.7% were males. The ages of the sampled population ranged from 27 to 70 years with a mean age of 52 years. Hypertension was more prevalent among the civil servants' with a record of 36.4%, followed by diabetes mellitus accounting for 19.1%. Prevalence of hypertension and diabetes were higher in females (59.3%) than in males (40.7%) and also increased with increasing age.Conclusion: Hypertension and diabetes are more prevalent among Ghanaian civil servants at the Ministries who patronize the civil service polyclinic. Preventive measures aimed at curbing high incidence rate of above conditions are advised

Opinion on Not Terminating Control Animals in the Recovery Phase of Non-rodent Toxicology Studies

Nonclinical toxicology studies required to support human clinical trials of new drug candidates are generally conducted in a rodent and a non-rodent species. These studies typically contain a vehicle control group and low, intermediate, and high dose test article treatment groups. In addition, a dosing-free recovery phase is sometimes included in toxicity studies to demonstrate reversibility of toxicities observed during the dosing phase and may include additional animals in the vehicle control and one or more dose groups. Typically, reversibility is determined by comparing the test article-related changes in the dosing phase animals to concurrent recovery phase animals at the same dose level. Therefore, for interpretation of reversibility, it is not always essential to terminate the recovery vehicle control animals. In the absence of recovery vehicle control tissues, the pathologist’s experience, historical control database, digital or glass slide repositories, or literature can be used to interpret the findings in the context of background pathology of the species/strain/age. Therefore, in most studies, the default approach could be not to terminate recovery vehicle control animals. This manuscript provides opinions on scenarios that may or may not necessitate termination of recovery phase vehicle control animals in nonclinical toxicology studies involving dogs and nonhuman primates