Superconductivity and magnetism in platinum-substituted SrFe2As2 single crystals

Single crystals of SrFe2-xPtxAs2 (0 < x < 0.36) were grown using the self flux solution method and characterized using x-ray crystallography, electrical transport, magnetic susceptibility, and specific heat measurements. The magnetic/structural transition is suppressed with increasing Pt concentration, with superconductivity seen over the range 0.08 < x < 0.36 with a maximum transition temperature Tc of 16 K at x = 0.16. The shape of the phase diagram and the changes to the lattice parameters are similar to the effects of other group VIII elements Ni and Pd, however the higher transition temperature and extended range of superconductivity suggest some complexity beyond the simple electron counting picture that has been discussed thus far.Comment: 6 pages, 6 figure

Effect of Special Fish Feed Prepared Using Food Industrial Waste on Labeo rohita

All food processing industries generate wastes of varying nature in significant quantities. Managing these wastes so as to minimize the impact on the environment is the prime concern. The concept of waste has undergone much change in recent times, with the focus being on utilizing the waste materials as inputs for generation of new or reusable products. Vegetable and fruit wastes are generated in significant quantities and are easily available at minimal charge. The comparative utilization of these wastes as a dietary ingredient was assessed employing the Labeo rohita fingerlings as the test species. The study was conducted over a period of 60 days. Orange peels and potato peels are characterized, and then, formulation of orange peel feed (OPF) and potato peel feed (PPF) was carried out. Market common fish feed (CFF) was taken as a control. The three test diets were designated as CFF, OPF and PPF. Feeding was done once daily. The water quality parameters such as dissolved oxygen, water temperature pH, total alkalinity, total hardness; calcium hardness and magnesium hardness as well as growth response were monitored at fortnightly intervals. The quality of water was maintained by periodic partial replenishment over the period of study. On termination of the trial, higher growth response was recorded in the PPF treatment. The initial and final weight and length of fishes was recorded. The results shows significant growth in PPF and OPF showed brighter body scales than other two feed. Fishes were very healthy and normal throughout the study period indicating no adverse effect on their health. No infection whatsoever was noted during 60 days of experimental period

Associations Between Major Depression, Health-risk Behaviors, and Medication Adherence Among Hiv-positive Adults Receiving Medical Care in Georgia

Background: There are approximately 1.2 million people in the United States living with HIV, and 25.6% of HIV-positive adults suffer from depression. The purpose of this study is to examine the contribution of depression to substance use and medication adherence among HIV-positive adults receiving medical care for HIV in Georgia. Methods: Secondary data with a probability sample of 775 HIV-positive adults who took part in the 2009-2013 Georgia Medical Monitoring Project (MMP) were analyzed. Descriptive analyses and multivariate logistic regressions were conducted to assess relationships between depression and current cigarette smoking, injection drug use, other non-injection drug use, and medication adherence, adjusting for sociodemographic covariates (age, gender, race, and education). All analyses accounted for non-response and complex sampling design. Results: Among HIV-positive adults in Georgia, 8.5% met the criteria for major depression, including 13.7% of women and 6.5% of men. Heterosexual adults had a higher percentage of major depression (10.7%) compared to adults who identified as bisexual (7.4%) or homosexual (5.8%). Major depression was also higher among adults with a high school diploma or GED (12.7%) compared to adults with a higher level of education (5.2%). Major depression was associated with a greater odds of current cigarette smoking (AOR 2.7; 95% CI: 1.5, 5.2) and other non-injection drug use (2.5; 95% CI: 1.4, 4.4), after adjusting for sociodemographic variables. The three measures of medication adherence were not statistically significantly associated with major depression. Conclusions: As previously observed for the general population, we found, among HIV-positive adults, significant associations between depression and smoking and other non-injection drug use. Because HIVpositive adults have ongoing encounters with healthcare providers, screening and treatment for depression and other co-morbid substance use is needed to reduce an additional health burden in this population

Metal-assisted red light-induced DNA cleavage by ternary L-methionine copper(II) complexes of planar heterocyclic bases

Ternary copper(II) complexes [Cu(L-met)B(Solv)](ClO4) (1-4), where B is a N,N-donor heterocyclic base like 2,2-bipyridine (bpy, 1), 1,10-phenanthroline (phen, 2), dipyrido[3,2-d:2',3'-f]quinoxaline (dpq, 3) and dipyrido[3,2-a:2',3'-c]phenazene (dppz, 4), are prepared and their DNA binding and photoinduced DNA cleavage activity studied (L-Hmet=L-methionine). Complex 2, structurally characterized by X-ray crystallography, shows a square pyramidal (4+1) coordination geometry in which the N,O-donor L-methionine and N,N-donor heterocyclic base bind at the basal plane and a solvent molecule is coordinated at the axial site. The complexes display a d-d band at ~600 nm in DMF and exhibit a cyclic voltammetric response due to the Cu(II)/Cu(I) couple near -0.1 V in DMF-Tris-HCl buffer. The complexes display significant binding propensity to the calf thymus DNA in the order: 4 (dppz) &gt; 3 (dpq) &gt; 2 (phen) » 1 (bpy). Control cleavage experiments using pUC19 supercoiled DNA and distamycin suggest major groove binding for the dppz and minor groove binding for the other complexes. Complexes 2-4 show efficient DNA cleavage activity on UV (365 nm) or red light (632.8 nm) irradiation via a mechanistic pathway involving formation of singlet oxygen as the reactive species. The DNA cleavage activity of the dpq complex 3 is found to be significantly more than its dppz and phen analogues

Entanglement via Barut-Girardello coherent state for suq(1,1)su_{q}(1, 1) quantum algebra: bipartite composite system

Using noncocommutative coproduct properties of the quantum algebras, we introduce and obtain, in a bipartite composite system, the Barut-Girardello coherent state for the q-deformed $su_{q}(1,1)$ algebra. The quantum coproduct structure ensures this normalizable coherent state to be entangled. The entanglement disappears in the classical $q \to 1$ limit, giving rise to a factorizable state.Comment: 12 page