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Copyright of Turkish Journal of Psychiatry is the property of Turk Psikiyatri Dergisi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

TiO2-based mixed oxide–carbon composite support for Pt electrocatalysts provides higher stability and CO tolerance under the working conditions of polymer electrolyte membrane fuel cells compared to traditional carbon supports. Non-traditional carbon materials like graphene nanoplatelets and graphite oxide used as the carbonaceous component of the composite can contribute to its affordability and/or functionality. Ti(1−x)MoxO2-C composites involving these carbon materials were prepared through a sol–gel route; the effect of the extension of the procedure through a solvothermal treatment step was assessed. Both supports and supported Pt catalysts were characterized by physicochemical methods. Electrochemical behavior of the catalysts in terms of stability, activity, and CO tolerance was studied. Solvothermal treatment decreased the fracture of graphite oxide plates and enhanced the formation of a reduced graphene oxide-like structure, resulting in an electrically more conductive and more stable catalyst. In parallel, solvothermal treatment enhanced the growth of mixed oxide crystallites, decreasing the chance of formation of Pt–oxide–carbon triple junctions, resulting in somewhat less CO tolerance. The electrocatalyst containing graphene nanoplatelets, along with good stability, has the highest activity in oxygen reduction reaction compared to the other composite-supported catalysts. [ABSTRACT FROM AUTHOR]

OBJECTIVE: The aim of the study was to investigate whether sarcopenia had the potential to predict mortality by analyzing epicardial and visceral fat thickness measurements, which are among the radiological findings and scores known to be crucial in determining the prognosis and risk classification of patients diagnosed with acute pulmonary embolism (PE) in the emergency department. PATIENTS AND METHODS: The study included patients diagnosed with acute PE in the emergency department from January 2019 to December 2022 and involved the retrospective examination of their demographic characteristics, clinical parameters, and radiological data obtained from computed tomography pulmonary angiography (CTPA) [main pulmonary artery (MPA) diameter, pulmonary artery obstruction, right and left ventricular diameters, epicardial and visceral tissue thicknesses, and pectoralis muscle thickness (PMT)]. The primary endpoint was mortality during the hospitalized treatment and follow-up processes, and the secondary endpoint was mortality within 90 days after diagnosis. RESULTS: Of the 389 patients included in the study, 11.6% had a fatal outcome in the early period following hospitalization for treatment, and 22.6% had a fatal outcome within the 90-day (late) period after diagnosis. In patients with late-period mortality, pleural fluid (30.8%), pericardial fluid (16.7%), and atelectasis (32.6%) were found to be statistically significantly higher. Among the markers obtained from imaging examinations, only PMT - right: 9.4 [interquartile range (IQR): 6.0-14.0]; left: 9.1 (IQR: 5.4-13.8) - was associated with mortality. According to logistic regression analysis, the MPA diameter was associated with early-period mortality, and it was determined that the right ventricular diameter and the right and left PMT values had a predictive effect on late-period mortality. CONCLUSIONS: To predict mortality, CTPA-based scoring systems that include markers such as PMT, pericardial and pleural fluid, and atelectasis would be more effective; however, large-scale studies are needed to enrich these findings. [ABSTRACT FROM AUTHOR]

Copyright of Turk Psikiyatri Dergisi is the property of Turk Psikiyatri Dergisi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Turk Psikiyatri Dergisi is the property of Turk Psikiyatri Dergisi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Turk Psikiyatri Dergisi is the property of Turk Psikiyatri Dergisi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

OBJECTIVE: This study aimed to explore the relationship between admission complaints and brain computed tomography (CT) examinations. Also, we evaluated the relationship between age and CT scan results in centenarians admitted to the emergency department for non-traumatic reasons. PATIENTS AND METHODS: This study was a retrospective analysis of patients aged 100 years and older who presented to the tertiary hospital emergency department for non-traumatic reasons between 2012 and 2021. Demographic characteristics, admission complaints, and indications used for brain CT were evaluated. The Fazekas grade and Evans index were compared with a younger population aged 85-90 years. RESULTS: Brain CT was ordered in 41.1% (n: 15/34) of the patients due to their atypical symptoms. While no acute pathology was found in the CT scans, 23.5% of the patients had an incidental intracranial mass and/or chronic ischemic areas. When the leukoencephalopathy findings of the centenarian patients were compared to the patients aged 85-90, it was determined that the Fazekas grade increased with age (p = 0.002). Concerning the ventricle diameter, there was a significant difference between the two groups (p = 0.017), with larger values detected in the 85-90 years group. CONCLUSIONS: Although no acute pathology was found in the brain CT scans of the centenarian patients who presented to the emergency department for any reason other than trauma, CT plays a fundamental role in determining emergency diagnosis and management strategies in patients presenting with atypical symptoms. While the degree of leukoencephalopathy increased with age, the ventricle diameter was significantly larger in the younger age group than in the centenarian patients. [ABSTRACT FROM AUTHOR]