An X-ray investigation of Hickson 62

We studied the X-ray properties of the Hickson Compact Group HCG62, in order to determine the properties and dynamic and evolutionary state of its hot gaseous halo. Our analysis reveals that the X-ray diffuse halo has an extremely complex morphological, thermal and chemical structure. Two deep cavities, due to the presence of the AGN hosted by the central galaxy NGC 4778, are clearly visible in the group X-ray halo. The cavities appear to be surrounded by ridges of cool gas. The group shows a cool core associated with the dominant galaxy. In the outer regions the temperature structure is quite regular, while the metal abundance shows a more patchy distribution, with large Si/O and Si/Fe ratios.Comment: Published in the Proceedings of the "I Workshop of Astronomy and Astrophysics for Students", Eds. N.R. Napolitano & M. Paolillo, Naples, 19-20 April 2006 (astro-ph/0701577

Hickson 62.I. Kinematics of NGC4778

Detailed studies of the photometric and kinematical properties of compact groups of galaxies are crucial to understand the physics of galaxy interactions and to shed light on some aspects of galaxy formation and evolution. In this paper we present a kinematical and photometrical study of a member, NGC4778, of the nearest (z=0.0137) compact group: Hickson 62. Aims: The aim of this work was to investigate the existence of kinematical anomalies in the brightest group member, NGC4778 in order to constrain the dynamical status and the formation history of the group. Methods: We used long-slit spectra obtained with FORS1 at VLT, to measure line-of-sight velocity distributions by means of the Fourier Correlation Quotient method, and to derive the galaxy rotation curve and velocity dispersion profile. Results: Our analysis reveals that Hickson 62a, also known as NGC4778, is an S0 galaxy with kinematical and morphological peculiarities, both in its central regions (r < 5'') and in the outer halo. In the central regions, the rotation curve shows the existence of a kinematically decoupled stellar component, offset with respect to the photometric center. In the outer halo we find an asymmetric rotation curve and a velocity dispersion profile showing a rise on the SW side, in direction of the galaxy NGC4776. Conclusions: The nuclear counterrotation, the distorted kinematics in the outer halo and the X-ray properties of the group suggest that NGC4778 may be the product of a recent minor merger, more reliable with a small late-type galaxy.Comment: 18 pages, 8 figures, accepted for pubblication in Astronomy and Astrophysic

Second hematopoietic SCT in patients with thalassemia recurrence following rejection of the first graft

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Projecting prescribing issues and patient patterns on the way to therapeutic appropriateness at the community level through elderly hypertensives

Introduction: Despite treatment, up to 50% of older hypertensives have poorly controlled blood pressure in the community. Possibly, the management advice does not reach the intended. Who stands responsible; the prescriber, the system (social dynamics) or the patients themselves? The study aims to showcase various prescribing practices and patient behaviours that influence therapeutic delivery and thus patient care. Appropriate redressals to such practices and behaviours as and when required during health planning/practice could result in the percolation of the best possible care unto all socioeconomic strata within a community. Materials and Methods: Older patients on antihypertensives (n = 143) were interviewed by visits to various urban slums of a district in Western Maharashtra, India, between December 2018 and October 2020 for this cross-sectional, descriptive study. Demographic and clinical data were recorded on a predesigned pro forma with reasons for the patient's behavior concerning disease/treatment. Finally, available prescriptions and the latest blood/urine evaluations were recorded. Prescribing practices were recorded with available tools and data was analysed. Results: The mean age of the study population was 68 ± 7.39 years. Optimal control of the blood pressure was not achieved in 72.03% of patients (P < 0.0001%; 95% confidence interval [CI]: 32.94–53.54%), whereas adverse drug reactions (ADRs) occurred in 35.66% of patients. Physician's prescription was available in 101 patients for prescription quality assessment; however, 12 patients had never been prescribed and 30 lost their prescriptions. Even patients under regular follow-up with a physician failed to achieve the blood pressure targets or prevent an ADR. Finally, the patients' behavior was studied, wherein 41.22% became lost to follow-up and 64.13% of patients had old prescriptions. Forty-two patients could explain such behaviors. Conclusions: Both physicians and patients were responsible for poor blood pressure control. The means of assisting a physician on physician-patient communication would reduce physician workload (thus increasing efficiency) and reduce confusion/misconception (about drug/disease etc) that patient upholds (thus addressing counterproductive patient behaviours)