Late roman glass from the ‘great temple’ at Petra and Khirbet Et-Tannur, Jordan-Technology and Provenance

Forty-seven window and vessel glasses from the ‘Great Temple’ at Petra (Jordan), dating to the first/second and fourth centuries CE, were analysed by EPMA for major and minor elements. A subset of 29 samples from Petra and 15 samples from Khirbet et-Tannur were additionally analysed for trace elements, using LA–ICP–MS. Six compositional groups were identified on the basis of the presence of decolouring agents. The majority of the glasses derive ultimately from the Levantine coast, but most of the groups show evidence for highly selective recycling. The observed differences between the two sites could be related to different chronological ranges, functions, relative wealth and trade connections.status: publishe

Psychiatric comorbidity in the subtypes of adhd in children and adolescents with adhd according to dsm-iv [DSM-IV’e göre dikkat eksikliği hiperaktivite bozukluğu (DEHB) olan çocuk ve ergenlerde DEHB alt tiplerinde Psikiyatrik Eş Tanı Varlığı]

2-s2.0-85100418195Introduction: The prevalence rate of psychiatric comorbidity in children and adolescents with Attention Deficit Hyperactivity Disorder (ADHD) was 60–80%. The objective of this study was to examine comorbid disorders associated with ADHD and the subtypes of ADHD in children and adolescents with the diagnosis of ADHD. Method: The study included 326 children and adolescents aged between 8–15 years who were diagnosed with ADHD for the first time as a result of an interview by psychiatry, in a child adolescent psychiatry clinic in İzmir. Sociodemographic form, Turgay DSM-IV Disruptive Behavior Disorders Rating Scale and Kiddie Schedule for Affective Disorders and Schizophrenia for School-Age Children Present and Lifetime version were used to assess psychiatric comorbidity. Results: The comorbidities accompanied ADHD were disruptive behavior disorder (28.8%), depressive disorder (13.2%), obsessive-compulsive disorder (9.5%) and anxiety disorder (6.1%). When the subtypes of ADHD were assessed according to psychiatric comorbidity, oppositional defiant disorder and conduct disorder were frequently seen with ADHD combined type, whereas anxiety disorder was more frequent with ADHD inattentive type. Discussion: Comorbidity in ADHD Combined type increases the severity of disease, delays treatment response and exacerbates prognosis. Therefore, it is very important to determine which psychiatric diagnosis accompany with ADHD. © 2020 by Turkish Association of Neuropsychiatry

Corrosion resistance and mechanical properties of quenched and tempered 28MnCrB5 steel in two acidic environments

Korrosionwiderstand und mechanische Eigenschaften eines abgeschreckten 28MnCrB5-Stahles in zwei sauren Umgebungen. Die Mikrostruktur, die Härteverteilung, die Zugfestigkeit und das Bruchverhalten des angelassenen Stahles 28MnCrB5 wurden jeweils vor und nach Korrosionsversuchen untersucht. Das Korrosionsverhalten des angelassenen Stahles 28MnCrB5 wurde in zwei verschiedenen sauren Umgebungen analysiert, dabei wurde zum einen eine Salzsäurelösung mit einem 10 % molaren Anteil und zum anderen Döngemittel-haltige Erde verwendet. Die Proben wurden in beide Lösungen för 24, 48, 72, 96, 120, 144 und 168 Stunden und in die Döngemittel-haltige Erde zudem för 240 Tage getaucht. Es wurden die Korrosionsverluste mittels Gewichtsänderungsmessungen bestimmt und die entsprechenden Korrosionsraten berechnet. In der Probe des abgeschreckten Werkstoffes wurde vor und nach 168 Stunden in der Salzsäurelösung sowie in der Döngemittel-haltigen Erde duktiles Bruchverhalten beobachtet. Allerdings zeigte die Probe, die för 240 Tage der Korrosion in Döngemittel-haltiger Erde ausgesetzt war, sprödes Bruchverhalten und die Bruchoberfläche lies eine interkristalline Spaltbruchfläche erkennen. Nach dem 240-Tage-Korrosionsversuch in der Döngemittel-haltigen Erde nahm die Duktilität des Werkstoffes erheblich ab. Die Oberfläche der gehärteten Stahlproben wies am Ende des 168-Stunden-Korrosionsversuchs in Salzsäure Löcher, Risse und Abschälungen auf. Am Ende des 240-Tage-Tests in der Döngemittel-haltigen Erde zeigte die Oberfläche der Proben tiefe Abschälungen und Risse

CREATIVE THINKING SKILLS ANALYZES OF VOCATIONAL HIGH SCHOOL STUDENTS

Abstract Creativity consists of flexible, fluent, unique and unordinary thinking in different situations. In educational systems, one of the most important skills which students should gain is creative thinking. In this study, "creativity scale" (7 items) which is developed b

CREATIVE THINKING SKILLS ANALYZES OF VOCATIONAL HIGH SCHOOL STUDENTS

Abstract Creativity consists of flexible, fluent, unique and unordinary thinking in different situations. In educational systems, one of the most important skills which students should gain is creative thinking. In this study, "creativity scale" (7 items) which is developed b