Prescribing stigma in mental disorders: A comparative study of Portuguese psychiatrists and general practitioners.

BACKGROUND: Physicians, including psychiatrists and general practitioners (GPs), have been reported as essential sources of stigma towards people diagnosed with a mental disorder (PDMDs), which constitutes an important barrier to recovery and is associated with poorer clinical outcomes. Therefore, psychiatrists and GPs are key populations where it is crucial to examine stigma, improve attitudes and reduce discrimination towards psychiatric patients. AIMS: This study is the first to explore mental health-related stigma among Portuguese psychiatrists and GPs, examining the differences between these two specialities and assessing whether sociodemographic and professional variables are associated with stigma. METHOD: A cross-sectional study was performed between June 2018 and August 2019. A consecutive sample of 55 Psychiatrists and 67 GPs working in Porto (Portugal) filled a 25-item self-report questionnaire to assess their attitudes towards PDMDs in clinical practice. The instrument was designed by the authors, based on previous mental health-related stigma studies and validated scales. The questionnaire includes 12 stigma dimensions (Autonomy, Coercion, Incompetence, Dangerousness, Permanence, Pity, Responsibility, Segregation, Labelling, Diagnostic Overshadowing, Shame and Parental Incompetence), and its total score was used to measure Overall Stigma (OS). Sample characteristics were examined using descriptive statistics, and the factors affecting stigma were assessed through regression analysis. RESULTS: GPs exhibit significantly higher OS levels than psychiatrists, and present higher scores in the dimensions of dangerousness, parental incompetence, diagnostic overshadowing and responsibility. Besides medical speciality, several other sociodemographic variables were associated with sigma, including age, gender, having a friend with a mental disorder, professional category, agreement that Psychiatry diverges from core medicine and physician's interest in mental health topics. CONCLUSIONS: Our data suggest that both psychiatrists and GPs hold some degree of stigmatizing attitudes towards PDMDs. Overall, these results bring new light to stigma research, and provide information to tailor anti-stigma interventions to Portuguese psychiatrists and GPs.

Ultra-Fast Microwave Synthesis of ZnO Nanorods on Cellulose Substrates for UV Sensor Applications.

In the present work, tracing and Whatman papers were used as substrates to grow zinc oxide (ZnO) nanostructures. Cellulose-based substrates are cost-efficient, highly sensitive and environmentally friendly. ZnO nanostructures with hexagonal structure were synthesized by hydrothermal under microwave irradiation using an ultrafast approach, that is, a fixed synthesis time of 10 min. The effect of synthesis temperature on ZnO nanostructures was investigated from 70 to 130 °C. An Ultra Violet (UV)/Ozone treatment directly to the ZnO seed layer prior to microwave assisted synthesis revealed expressive differences regarding formation of the ZnO nanostructures. Structural characterization of the microwave synthesized materials was carried out by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The optical characterization has also been performed. The time resolved photocurrent of the devices in response to the UV turn on/off was investigated and it has been observed that the ZnO nanorod arrays grown on Whatman paper substrate present a responsivity 3 times superior than the ones grown on tracing paper. By using ZnO nanorods, the surface area-to-volume ratio will increase and will improve the sensor sensibility, making these types of materials good candidates for low cost and disposable UV sensors. The sensors were exposed to bending tests, proving their high stability, flexibility and adaptability to different surfaces.