The role of the family in attributing meaning to living with HIV and its stigma in Turkey

Stigma attached to HIV/AIDS remains a global problem, with severe negative consequences for people living with HIV (PLHIV). Family support is fundamental for PLHIV’s psychological and physical well-being. HIV-related stigma is high in Turkey, where HIV/AIDS prevalence is low and the epidemic is not considered a priority. Based on qualitative data generated with HIV-positive women and men, this article explores the process of stigmatization, as experienced and perceived by PLHIV in Turkey, focusing on the institution of the family. Results indicated that enacted stigma from family members is lower than anticipated. While most participants’ narratives showed patterns of support rather than rejection from families, the strong expectations around the cultural value attributed to “the family” are found to be the main facilitators of internalized stigma. The article critically discusses the meaning and implications of family support, addressing the role of patriarchal values attributed to womanhood, manhood, and sexuality in Turkey

Understanding atmospheric organic aerosols via factor analysis of aerosol mass spectrometry: a review

Organic species are an important but poorly characterized constituent of airborne particulate matter. A quantitative understanding of the organic fraction of particles (organic aerosol, OA) is necessary to reduce some of the largest uncertainties that confound the assessment of the radiative forcing of climate and air quality management policies. In recent years, aerosol mass spectrometry has been increasingly relied upon for highly time-resolved characterization of OA chemistry and for elucidation of aerosol sources and lifecycle processes. Aerodyne aerosol mass spectrometers (AMS) are particularly widely used, because of their ability to quantitatively characterize the size-resolved composition of submicron particles (PM1). AMS report the bulk composition and temporal variations of OA in the form of ensemble mass spectra (MS) acquired over short time intervals. Because each MS represents the linear superposition of the spectra of individual components weighed by their concentrations, multivariate factor analysis of the MS matrix has proved effective at retrieving OA factors that offer a quantitative and simplified description of the thousands of individual organic species. The sum of the factors accounts for nearly 100% of the OA mass and each individual factor typically corresponds to a large group of OA constituents with similar chemical composition and temporal behavior that are characteristic of different sources and/or atmospheric processes. The application of this technique in aerosol mass spectrometry has grown rapidly in the last six years. Here we review multivariate factor analysis techniques applied to AMS and other aerosol mass spectrometers, and summarize key findings from field observations. Results that provide valuable information about aerosol sources and, in particular, secondary OA evolution on regional and global scales are highlighted. Advanced methods, for example a-priori constraints on factor mass spectra and the application of factor analysis to combined aerosol and gas phase data are discussed. Integrated analysis of worldwide OA factors is used to present a holistic regional and global description of OA. Finally, different ways in which OA factors can constrain global and regional models are discussed

Choroidal thickness in asymptomatic patients with carotid artery stenosis

Aim: To measure the choroidal thickness (CT) with enhanced-depth imaging optic coherence tomography (EDI-OCT) in patients with internal carotid artery (ICA) stenosis and to investigate the relationship between the CT and ICA stenosis. Material and methods: We included 36 eyes of 25 asymptomatic patients with 50% or higher ICA stenosis and 36 eyes of 21 healthy controls in the study. The CT was measured with EDI-OCT from a total of 6 points in both groups. The results were compared statistically between the groups. Results: There were no significant differences between patients with asymptomatic ICA stenosis and non-stenotic healthy individuals at subfoveal CT (P = 0.085), at 500 μm nasal to the fovea (P = 0.076), at 1,000 μm nasal to the fovea (P = 0.052), at 500 μm temporal to the fovea (P = 0.182), at 1,000 μm temporal to the fovea (P = 0.115) and at 1,500 μm temporal to the fovea (P = 0.174). Additionally, no significant difference was observed in CT values measured from 6 points between the stenotic side and the non-stenotic side in 14 patients with unilateral ICA stenosis (P > 0.05 for all points). Conclusion: The CT may not alter in asymptomatic ICA stenosis compared with healthy non-stenotic individuals. However, more studies are needed to corroborate our findings. © 2020, Czech Medical Association J.E. Purkyne. All rights reserved

Detector design studies for Turkish accelerator center

Bu çalışma, 06-09, Eylül 2016 tarihlerinde Bodrum[Türkiye]’de düzenlenen 32. International Physics Congress of Turkish-Physical-Society (TPS) Kongresi‘nde bildiri olarak sunulmuştur.The proposed Particle Factory detector at Turkish Accelerator Center (TAC-PF) aims to search for charm physics, CP violation and mixing of D-0 mesons as well as new physics effects by investigating head-on collisions of 1 GeV electron from Energy Recovery Linac (ERL) with 3.56 GeV positrons from synchrotron storage ring. In this work, we constructed the TAC-PF detector design by using a recently developed framework namely Detector Description for High Energy Physics (DD4hep). The baseline TAC-PF detector design and its qualifications were summarized, followed by a general description.Türk Fizik Derneğ

Light Higgs bosons and muon g-2 in THDM

Bu çalışma, 06-09, Eylül 2016 tarihlerinde Bodrum[Türkiye]’de düzenlenen 32. International Physics Congress of Turkish-Physical-Society (TPS) Kongresi‘nde bildiri olarak sunulmuştur.As well as having a significant impact on models beyond the Standard Model, the Higgs boson discovery has opened a new era in both experimental and phenomenological searches. For instance, observed anomalies in Higgs decays into two photons and four leptons and muon anomalous magnetic moment (muon g - 2) may imply more Higgs-like scalars. In this work, we study Two Higgs Doublet Model-TypeIII, in which one Higgs doublet develops a zero vacuum expectation value. we find the mass spectrum include five Higgs bosons each of which is lighter than about 350 GeV. We consider the contributions to muon g - 2 from these light extra Higgs bosons, and we find that the discrepancy between the SM and the experimental measurements can be resolved if m(H), m(A), m(H perpendicular to) less than or similar to 150 GeV.Türk Fizik Derneğ

Production of scalar and vector bileptons in polarized e(-)gamma and gamma gamma colliders

Bu çalışma,06-09 Eylül 2016 tarihlerinde Bodrum[Türkiye]’de düzenlenen 32. International Physics Congress of Turkish-Physical-Society (TPS) Kongresi‘nde bildiri olarak sunulmuştur.We study the production of doubly charged scalar and vector bileptons which are predicted several beyond the Standard Model scenarios, in polarized high energy e gamma and gamma gamma collisions with the photon originating from Compton backscattering. We analyze the discovery potential and show how the use of polarized beams is to distinguish between scalar and vector bileptons in model-independent framework.Türk Fizik Derneğ