Self, identity and identity formation: From the perspectives of three major theories

This study revealed that there are three major perspectives in explaining the identity and identity formation. The first one is social identity theory where the founders see the group membership as the driving force for identity formation. The next theory is identity theory, in which the roles that are assigned to individuals are deemed as the major source for energy to identity formation. The last theory talks about the importance of personal values in explaining the identity and identity formation process (personal identity theory). This paper will talk about three of them separately and in the end the need to merge these theories will be stressed

Morphology of peripheral blood cells from various species of Turkish Herpetofauna

In this study, measurements of morphological and size parameters of peripheral blood cells (erythrocyte, leucocyte, thrombocyte) on blood smear preparation devices stained with Wright’s stain were given for 87 species from Turkish herpetofauna (19 amphibian species including 7 urodeles and 12 anurans as well as 68 reptile species including 4 turtles, 30 lizards and 34 snake. It was determined that erythrocyte and nucleus sizes showed great variations among the species of herpetofauna and even among the preparations of the same species; the largest blood cells (erythrocyte, leucocyte, thrombocyte) were found in urodeles; aquatic and semiaquatic species had larger erythrocytes than terrestrials, and the largest erythrocytes were in turtles among the reptile species examined. Lymphocytes were determined as the predominant cells among the blood leucocytes in blood smears of all the examined species

Case Report of An Incidental Unicentric Castleman Disease

DergiPark: 889347tmsjAims: To emphasize the hardship of diagnosing Castleman disease and present a potential treatment method. Case Report: A sixty-three-year-old male patient was admitted to the outpatient clinic with an attack of acute cholecystitis. The patient’s abdominal computed tomography revealed an incidentally detected lipid dense solid mass (64x53x37 mm) at the level of right renal hilum with 29x13 mm solid components in the middle. The patient was admitted to the urology department and underwent surgery where the mass was totally excised due to suspicion of a malignancy (liposarcoma). Histopathological examination later on resulted with unicentric Castleman disease, hyaline vascular subtype. Conclusion: Since unicentric Castleman disease has an asymptomatic clinical course and is quite rare, it is necessary to rule out many potential possibilities before reaching a proper diagnosis. However, unicentric Castleman disease usually exhibits a good prognosis after the removal of the affected lymph node. Still, Castleman disease should be a candidate considered in the differential diagnosis of patients with incidentally discovered lymphadenopathy. On the whole, for a better understanding of underlying pathophysiology, there still lies a gap to be filled with knowledge acquired through further studies

A Current Overview of Intensive Care Subspeciality Education in Turkey: What Do Educational Staff, Subspecialty Residents and Specialists Think?

Objective: Intensive care subspecialty programs have been opened in many medical faculties and training-research hospitals in our country, and intensivists who have graduated are working in the field. The aim of this study aimed to collect information about the status of intensive care subspecialty education and the working conditions of intensive care specialists working in the field. Materials and Methods: After obtaining the ethics committee approval, three questionnaires for intensive care subspecialty educational staff (ES), research assistants (RA), and graduated specialists (PG) were prepared through the Google Survey and published on social media. In the questionnaires, the status of education and working conditions in the field after graduation were questioned. The descriptive statistics method was used for analysis. Results: The questionnaires were answered by 38 ES, 99 RA, and 46 PG. Fifty-four percent of the ES were between the ages of 51 and 60 and 65.8% were women. Fifty-one percent of ES were working in a university hospital. Forty-seven percent of full-time ES were working in the department of anesthesiology and reanimation subdepartment of intensive care, and the rate of participation of all partner clinics in the program was 86.5%. Twenty-seven (71.1%) of the ES thought that the TUKMOS core training program should be changed. The main specialty of 54.5% of RAs were anesthesiology and reanimation, and 52% of them were studying at a state university. The rate of those who were on duty at the hospital was 87.8%, and the rate of those who described the rotation training as “medium” was 36.5%. Sixty-five percent of the PGs were anesthesiology and reanimation specialists, and 64.4% said that they would like to primarily work in training and research hospitals in terms of efficiency and qualit; 87% of them stated that intensive care specialists should be able to work in any kind of intensive care unit, 69.6% thinks that the education they receive is sufficient. Conclusion: We believe that evaluating and sharing the data of this study may cause positive changes in intensive care subspecialty education and post-graduate working conditions

Production of upgraded metallurgical-grade silicon for a low-cost, high-efficiency, and reliable PV technology

Upgraded metallurgical-grade silicon (UMG-Si) has the potential to reduce the cost of photovoltaic (PV) technology and improve its environmental profile. In this contribution, we summarize the extensive work made in the research and development of UMG technology for PV, which has led to the demonstration of UMG-Si as a competitive alternative to polysilicon for the production of high-efficiency multicrystalline solar cells and modules. The tailoring of the processing steps along the complete Ferrosolar’s UMG-Si manufacturing value chain is addressed, commencing with the purification stage that results in a moderately compensated material due to the presence of phosphorous and boron. Gallium is added as a dopant at the crystallization stage to obtain a uniform resistivity profile of ∼1 Ω cm along the ingot height. Defect engineering techniques based on phosphorus diffusion gettering are optimized to improve the bulk electronic quality of UMG-Si wafers. Black silicon texturing, compatible with subsequent gettering and surface passivation, is successfully implemented. Industrial-type aluminum back surface field (Al-BSF) and passivated emitter and rear cell (PERC) solar cells are fabricated, achieving cell efficiencies in the range of those obtained with conventional polysilicon substrates. TOPCon solar cell processing key steps are also tested to further evaluate the potential of the material in advanced device architectures beyond the PERC. Degradation mechanisms related to light exposure and operation temperature are shown to be insignificant in UMG PERC solar cells when a regeneration step is implemented, and PV modules with several years of outdoor operation demonstrated similar performance to reference ones based on poly-Si. Life cycle analysis (LCA) is carried out to evaluate the environmental impact of UMG-based PV technology when compared to poly-Si-based technology, considering different scenarios for both the manufacturing sites and the PV installations

Investigation of mechanical properties of laser welded dual-phase steels at macro and micro levels

MakaleWOS:000868919200001The current automotive industry uses new technology in materials processing and lightweight materials to minimize vehicle weight and fuel consumption. As a result, Tailor-Welded Blanks (TWB) are used in regions where additional strength or stiffness is necessary in body-in-white, thus decreasing weight. In this paper, TWB were produced by joining DP600 with 1.8 mm and DP800 with 0.8 mm and 1.5 mm using CO2 laser welding. The effects of laser power and welding speed on the mechanical properties of TWB were investigated. The flow behaviors of the TWB were obtained from tensile tests. The microstructures of the weld zones of the base ma-terials and TWB were revealed, and the numerical analyzes of the microstructures were performed by micro -mechanical modeling with a 2D representative volume element (RVE). Effective stress and plastic strain distributions in the microstructures and macroscopic flow curves of the base materials and the weld zones were obtained. The uniaxial tensile tests of the samples were modeled, and the flow behaviors of the TWB were ob-tained with micromechanical modeling. The results showed a significant change in stress distribution and strain localization depending on the grain size of constituents and the thickness ratios of the TWB at micro and macro scales, respectively. The numerical flow curves obtained using the RVE method were in good agreement with those of the experimental.Necmettin Erbakan Üniversites