Computer programs for calculating potential flow in propulsion system inlets

Calculational procedure evolved in process of designing inlets. Douglas axisymmetric potential flow program called EOD calculates incompressible potential flow about arbitrary bodies. Program SCIRCL generates input for EOD from inlet components. Program COMBYN takes basic solutions output by EOD and combines them into solutions of interest and applied compressibility correction

Beyond the Crossroads: Shackled by Liberty, Tyrannized by Equality (Book Review: Slouching Towards Gomorrah)

Review of SLOUCHING TOWARDS GOMORRAH by Robert Bor

Alexitimia e Atitudes de Procura de Ajuda em Estudantes Universitários

Aim: This epidemiological study focused on prevalence of the personality trait, alexithymia – the inability to recognize and describe one’s own emotions – among college-aged students. Method: Levels of normative alexithymia (measured by the NMAS), clinical alexithymia (measured by the TAS), as well as attitudes towards help seeking behavior (measured by the ATSPPH) were assessed. Results: A total of 547 participants were collected from over 48 colleges and universities, primarily in Western New York. Results indicated that 89.5% of college students displayed moderate to high levels of normative alexithymia and 48.7% displayed moderate to high levels of clinical alexithymia. Additionally, there were no significant differences between the scores of men and women on either alexithymia measure. Significant findings indicated that there was a positive relationship between clinical alexithymia scores and attitudes toward help-seeking. Conclusion: These results call into question previous literature, which states that there is no correlation between alexithymia and help-seeking behavior (Berger et al., 2005, https://doi.org/10.1037/1524-9220.6.1.73). The results of this study suggest a shift in culture, as well as a need for more research regarding alexithymia.Objetivo: Este estudo epidemiológico focou-se na prevalência do traço de personalidade alexitimia – incapacidade de reconhecer e descrever as próprias emoções – entre estudantes em idade universitária. Método: Níveis de alexitimia normativa (medidos através do NMAS), alexitimia clínica (medida através do TAS), assim como atitudes em relação a comportamentos de procura de ajuda (medidos através do ATSPPH) foram medidos. Resultados: Foram incluídos um total de 547 participantes de 48 colégios e universidades, maioritariamente da zona Ocidental de Nova Iorque. Os resultados indicaram que 89.5% dos estudantes universitários apresentaram níveis moderados a elevados de alexitimia, e 48.7% apresentaram níveis moderados a elevados de alexitimia clínica. Adicionalmente, não foram encontradas diferenças significativas entre os resultados de homens e mulheres em ambas as medidas de alexitimia. Os resultados significativos indicaram a existência de uma relação positiva entre resultados clínicos de alexitimia e atitudes em relação à procura de ajuda. Conclusão: Estes resultados questionam a literatura existente, que afirma não existir correlação entre alexitimia e comportamentos de procura de ajuda (Berger et al., 2005, https://doi.org/10.1037/1524-9220.6.1.73). Os resultados deste estudo sugerem uma mudança cultural, bem como a necessidade de mais investigação na área da alexitimia

Interacting Factors Associated With Adult Male Drowning In New Zealand

Objectives: i) to identify factors that contribute to the global trend of the higher incidence of male drowning relative to females, and; ii) to explore relationships between such factors from mortality data in New Zealand. Methods: Drownings from 1983 to 2012 were examined for: Age, Ethnicity, Site, Activity, Buoyancy and Alcohol. Conditional frequency tables presented as mosaic plots were used to assess the interactions of these factors. Results: Alcohol was involved in a high proportion of Accidental Immersion drownings (61%) and was highest for males aged 20-24 years. When alcohol was involved there were proportionally more incidences where a life jacket was Available But Not Worn and less incidences where a life jacket was Worn. Many 30-39 year old males drowned during underwater activities (e.g., snorkeling, diving). Older men (aged +55 years old) had a high incidence of drowning while boating. Different ethnicities were over-represented in different age groups (Asian men aged 25-29, and European men aged 65-74) and when involved in different activities. Conclusions: Numerous interacting factors are responsible for male drownings. In New Zealand, drowning locations and activities differ by age and ethnicity which require targeted intervention strategies

1-3 Piezocomposite design optimised for high frequency kerfless transducer arrays

Piezocomposites that can operate at frequencies above 30 MHz without spurious modes are required in order to develop sufficiently sensitive high frequency arrays for high resolution imaging. However, scaling down of conventional piezocomposite fabrication techniques becomes increasingly difficult as dimensions decrease with increasing frequency. The approach presented here is to use micro-moulded 1-3 piezocomposites and a distribution of piezoelectric segment size and separation. Innovative approaches to composite pattern design, based on a randomized spatial distribution, are presented. Micro-moulding techniques are shown to be suitable for fabricating composites with dimensions required for high frequency composites. Randomized piezocomposite patterns are modeled and are shown to suppress spurious modes

Rapeseed. 2. Insect control

RAPESEED crops are highly susceptible to attack from a number of insects and, in most cases, some crop protection measures will be necessary to achieve satisfactory yields. This article discusses the insects that have been a problem in rapeseed crops in Western Australia to date

Insect pest and their control - Potato moth control

THE potato moth, Gnorimoschema operculella Zell., is almost world-wide in its distribution and can cause considerable damage to both potato crops and stored potatoes. The adult insect is a small inconspicuous, grey moth. The caterpillars cause the damage and they are, when fully grown, about half an inch long and pale greenish white in colour. They eat into the leaf and feed between the leaf surfaces and even work down the leaf stalks into the stems. Tubers may be damaged in the ground by caterpillars entering through cracks in the soil