6 research outputs found
Six-fold in-plane magnetic anisotropy in Co-implanted ZnO (0001)
Magnetic anisotropies of Co-implanted ZnO (0001) films grown on
single-crystalline Al2O3 (11-20) substrates have been studied by ferromagnetic
resonance (FMR) technique for different cobalt implantation doses. The FMR data
show that the easy and hard axes have a periodicity of 60 degrees in the film
plane, in agreement with the hexagonal structure of the ZnO films. This
six-fold in-plane magnetic anisotropy, which is observed for the first time in
ZnO-based diluted magnetic semiconductors, is attributed to the substitution of
cobalt on Zn sites in the ZnO structure, and a clear indication for long range
ferromagnetic ordering between substitutional cobalt ions in the
single-crystalline ZnO films.Comment: 7 pages, 4 figure
Comparison of lymph node metastasis rates in breast cancer molecular subtypes; A retrospective clinical study
Breast cancer is the most common cancer in women. Axillary lymph node metastasis in breast cancer is the most important determinant of long-term prognosis, but isn't an independent risk factor for overall survival. Invasive breast cancer is divided into molecular subtypes according to the presence of estrogen, progesterone and Her2 receptors: these subtypes can guide systemic therapy. Our aim in the study is to compare the axillary lymph node metastasis rates statistically in breast cancer subtypes. Patients treated for breast cancer were retrospectively evaluated in Group1(LuminalA-likeERand/orPR+,Her2 -), Group2 (LuminalB-likeER and/or PR+,Her2-), Group3 (Her2+,ER and/or PR+), Group4 (Her2+,ER and/or PR-) and Group5 (Her2-,ER and PR-) analyzed for tumor type, pathological stage, lymph node metastasis.208 patients were included in the study, and the mean age of the patients was 57.3±12.8. Although the age distribution of the groups was similar, no significant difference was found between the groups in terms of menopausal status. While the lymph node distribution was highly proliferative in Group 2. Demonstrating metastasis organotropisms in the effect of molecular subtypes of breast cancer is necessary to understand tumor mechanisms. ER and PR positive tumors usually metastasize to bones, while Her2+ or triple-negative breast cancers usually tend to metastasize to the visceral system, including the central nervous system. As with distant metastasis habits, lymph node metastasis rates of molecular subtypes of breast cancer can also vary. Being aware of these metastasis possibilities is also helpful in understanding the clinical behavior of the disease. It is important to know the molecular subtypes and susceptibility of lymphatic metastases as well as trying to avoid unnecessary complications of axillary dissection using the sentinel lymph node sampling technique. [Med-Science 2023; 12(1.000): 52-7
functional outcome in late adolescence/early adulthood of patients with autism spectrum disorder and its relationships with parental burnout and depression: A preliminary multi-center, cross-sectional study.
The aim of this study is to determine the functioning of adults with autism spectrum disorders (ASDs) diagnosed in childhood and depression and burnout levels among their parents. A total of 261 adults with ASDs and their parents were recruited for the study. Both parents completed the Beck Depression and Maslach Burnout Inventories and reported the functioning of their adult offspring with ASDs. Only 5.4 % of our sample reported “good” or “very good” outcomes. The most common psychiatric comorbidities were intellectual disabilities and attention-deficit/hyperactivity disorder. Maternal burnout and depression scores were significantly elevated compared to those of fathers. There is an undeniable urgent need for more research to identify the needs of adults and families suffering from ASD. Modifications for those with ASD may have to be made for support in workplaces, achieving driving licenses, using public transportation and attendance at tertiary education
The prevalence of childhood psychopathology in Turkey: a cross-sectional multicenter nationwide study (EPICPAT-T).
Aim: The aim of this study was to determine the prevalence of childhood psychopathologies in Turkey
The prevalence of childhood psychopathology in Turkey: a cross-sectional multicenter nationwide study (EPICPAT-T)
Conclusion: This is the largest and most comprehensive epidemiological study to determine the prevalence of psychopathologies in children and adolescents in Turkey. Our results partly higher than, and partly comparable to previous national and international studies. It also contributes to the literature by determining the independent predictors of psychopathologies in this age group
Prevalence of Childhood Affective disorders in Turkey: An epidemiological study
Aim: To determine the prevalence of affective disorders in Turkey among a representative sample of Turkish population.
Methods: This study was conducted as a part of the "The Epidemiology of Childhood Psychopathology in Turkey" (EPICPAT-T) Study, which was designed by the Turkish Association of Child and Adolescent Mental Health. The inclusion criterion was being a student between the second and fourth grades in the schools assigned as study centers. The assessment tools used were the K-SADS-PL, and a sociodemographic form that was designed by the authors. Impairment was assessed via a 3 point-Likert type scale independently rated by a parent and a teacher.
Results: A total of 5842 participants were included in the analyses. The prevalence of affective disorders was 2.5 % without considering impairment and 1.6 % when impairment was taken into account. In our sample, the diagnosis of bipolar disorder was lacking, thus depressive disorders constituted all the cases. Among depressive disorders with impairment, major depressive disorder (MDD) (prevalence of 1.06%) was the most common, followed by dysthymia (prevalence of 0.2%), adjustment disorder with depressive features (prevalence of 0.17%), and depressive disorder-NOS (prevalence of 0.14%). There were no statistically significant gender differences for depression. Maternal psychopathology and paternal physical illness were predictors of affective disorders with pervasive impairment.
Conclusion: MDD was the most common depressive disorder among Turkish children in this nationwide epidemiological study. This highlights the severe nature of depression and the importance of early interventions. Populations with maternal psychopathology and paternal physical illness may be the most appropriate targets for interventions to prevent and treat depression in children and adolescents