Incorporation of Y2O3 Particles into 410L Stainless Steel by a Powder Metallurgy Route

Addition of yttria to steels has been proposed for the fabrication of oxide-dispersion-strengthened materials for nuclear power applications. We have investigated materials prepared from 12 Cr martensitic stainless steel, AISI 410L, produced by powder metallurgy. Materials were produced with and without yttria addition, and two different sizes of yttria were used, 0.9 µm and 50 nm. Tensile and mini-creep tests were performed to determine mechanical properties. Optical microscopy, SEM, TEM, and EDX analysis were used to investigate the microstructures and deformation mechanisms and to obtain information about non-metallic inclusion particles. SiO2, MnS, and Y2Si2O7 inclusion particles were observed. An SiO2 and Y2O3 interaction was seen to have occurred during the ball milling, which impaired the final mechanical properties. Small-angle neutron scattering experiments showed that the matrix chemistry prevented effective dissolution of the yttria. © The Author(s) 201

A taxonomical investigation into Turkey lichen genus Hypogymnia (Nyl.) Nyl. [Turkiye Likenlerinden Hypogymnia (Nyl.) Nyl. cinsi uzerinde taksonomik arastirma]

Six species are recorded: Hypogymnia bitteri, H. farinacea, H. laminisorediata, H. physodes, H. tubulosa and H. vitta. Distribution maps of these species are given. A key to the Turkish species is presented, as well as a morphological description of the species and their chemistry. -from English summar

Emanuel Sendromu

A 35 year old pregnant woman who had previous had a child by cesarean section and a previous abortion, was referred to our clinic because of an increased risk in a second trimester screening at 20 weeks. When we investigated with detailed ultrasonograpy, increased nuchal fold thickness, diaphragma hernia, complete endocardial cushion defect and truncus arteriosus were found. Amniosentesis was performed and the pregnancy was terminated medically with usage of vaginal and oral misoprostol. After chromosomal analysis, 47,.., +der(22) t(11,22) (q25;q13) was assigned. Although paternal chromosomes analysis was normal; maternal chromosomes corresponded with 46,XX t(11,22) (q25;q13), which is a carrier for this syndrome.35 yaşında daha önceden 1 aylık spontan abortusu bulunan ve miad sezaryen doğum ile 3300gr sağlıklı çocuğu olan hastada şimdiki gebeliğinde yapılan 2. düzey taramasında ; nukal foldda kalınlaşma, diafragma hernisi, komplet endokardial yastık defekti ve trunkus arteriosis saptanması üzerine amniosentez yapıldı ve gebelik sonlandırılmasına gidildi. Misoprostol 200mg 6x1 uygulandı. Yapılan genetik incelemede 47, .. , +der(22) t(11,22) (q25;q13) saptandı. Aileye yapılan kromozom analizinde annede 46,XX t(11,22) (q25;q13) bulunurken baba normal karyotipe sahipti

Transumbilical single-incision total laparoscopic hysterectomy: Technique and initial experience in Turkey

PubMed ID: 23342880Objectives: The aim of the study is to determine the results of our initial experience of 32 cases who underwent single incision total laparoscopic hysterectomy. Materials and Methods: Thirty-two patients who underwent transumbilical single incision total laparoscopic hysterectomy between March 2009 and February 2011 were reviewed retrospectively at the Department of Obstetrics and Gynecology, Ege University Faculty of Medicine, Izmir, Turkey. Articulating and rigid instruments, 30 degrees 10 mm telescope, SILS™ port and advanced bipolar and mechanical energy modalities were used during the procedure. Duration of surgery, length of hospital stay, mean blood loss and postoperative complications were assessed. Results: Mean age of patients and mean operation time were 48 years (ranged 42-55) and 108 minutes (ranged 80-180), respectively. In all cases vaginal cuff s were closed with either intracorporeal or extracorporeal separate sutures. There were no intraoperative complications. All patients were discharged within 48 hours postoperatively. The mean length of hospital stay and mean blood loss were as 1.6 days (range 1-2) and 45 ml (range 30-100), respectively. Conclusions: Total laparoscopic hysterectomy performed through transumbilical single incision is technically feasible and safe. Development of advanced fl exible instrumentation and visualization platform may facilitate this new operative approach. © Polskie Towarzystwo Ginekologiczne

On the Chemistry of Lichens from Turkey. Structure of Nemetzon, the Pigment of the Apothecia from Haematomme nemetzii [Zur Chemie von Flechten aus der Türkei. Struktur von Nemetzon, dem Apothecienpigment von Haematomma nemetzii]

[No abstract available

On the Chemistry of Lichens From Turkey - Structure of Nemetzon, the Pigment of the Apothecia From Haematomma-Nemetzii

WOS: A1994PU30200018The lichens Haematomma nemetzii, a Ramalina species, and Tornabena scutellifera from Turkey have been analysed chemically. Nemetzon is a new anthraquinone from the apothecia of Haematomma nemetzii

using 3D modeling techniques in computerized tomography

Sex determination is a major area of investigation in forensic anthropology. As technology has advanced, imaging methods such as computed tomography and magnetic resonance imaging are being investigated as alternatives to conventional forensic anthropological research techniques. This study aimed to investigate the suitability of three-dimensional (3D) modeling of volumetric cranial computed tomography (CCT) images for sex estimation from skull morphology. In this study, CCT angiography images from the Department of Radiology 2017 archives were used retrospectively, and 3D images were obtained after the reconstruction of 85 cases of CCT images. The sex-dependent morphological characteristics of the skull were evaluated by three blinded observers and scored on a scale of 1-5 points according to the "Standards for Data Collection from Human Skeletal Remains". The accurate sex estimation rates of the first, second and third observers were 91.8, 92.9 and 92.9%, respectively. The rate of accurate sex estimation for males was 98-100%, while this rate varied between 83.3-86.1% for females. Consistency in sex estimation between the three observers was 83.5%, with a Kappa value of 0.763 (z = 12.2; p = 0.0001*). The glabella was the most effective morphological trait used to estimate sex. The results of this study show that sex can be estimated from morphological features in volume-rendered CCT 3D images. Thus, sex can be estimated by digital images without the need for maceration processes, and the transfer of digital data in place of physical material will make it possible to gain expert opinions in forensic anthropology