ABSTRACT
Distributed generators (D.G.'s) enable us to generate, supply and be self-reliant on power while also allows us to supply power to meet the demand through virtual power plants. The virtual power plants also help us analyse, control, optimise, and help bridge the gap of demand and supply in these vast energy requirements. With this also comes challenges associated with securing physical systems, data protection and information privacy. Recent technological advancements have aided cybercriminals to disrupt operations by carrying out deliberate attacks on the energy sector. Though security researchers have tried to mitigate the risks, vulnerabilities, and it remains a challenge. This paper aims to present a comprehensive Edge-based security architecture to help reduce the risks and help secure the physical systems and ensure privacy and data protection.
ABSTRACT
OBJECTIVE: To examine urban, minority adolescents' preferences for receiving guidance for mental health (MH) issues from primary care providers (PCPs) or from mental health providers (MHPs). METHODS: Adolescents (13-21 years) from three community clinics and one school-based health center (SBHC) in the Bronx, N.Y. completed anonymous surveys. Characteristics of adolescents who preferred the PCP vs. MHP and adolescents' attitudes about the PCP vs. the MHP were compared. RESULTS: Adolescents (N=135), mean age 16 years, majority Hispanic participated. Although 85% strongly agreed or agreed that their PCP was knowledgeable about MH, 57% preferred to talk to a MHP. Those who preferred the MHP were younger, attend a SBHC, and trust information on MH from a MHP. Those who preferred the PCP were more likely to report feeling comfortable talking to their PCP about MH. CONCLUSIONS: Although the majority preferred a MHP, PCPs appeared to be an acceptable alternative for MH care.
Subject(s)
Counselors , Mental Health , Primary Health Care , Adolescent , Adolescent Health Services , Female , Health Personnel , Humans , Male , Mental Health Services , New York City , School Health Services , Young AdultABSTRACT
Ferroelectrics are widespread in technology, being used in electronics and communications, medical diagnostics and industrial automation. However, extension of their operational temperature range and useful properties is desired. Recent developments have exploited ultrathin epitaxial films on lattice-mismatched substrates, imposing tensile or compressive biaxial strain, to enhance ferroelectric properties. Much larger hydrostatic compression can be achieved by diamond anvil cells, but hydrostatic tensile stress is regarded as unachievable. Theory and ab initio treatments predict enhanced properties for perovskite ferroelectrics under hydrostatic tensile stress. Here we report negative-pressure-driven enhancement of the tetragonality, Curie temperature and spontaneous polarization in freestanding PbTiO3 nanowires, driven by stress that develops during transformation of the material from a lower-density crystal structure to the perovskite phase. This study suggests a simple route to obtain negative pressure in other materials, potentially extending their exploitable properties beyond their present levels.
