Yamhill Community Action Partnership

Students enrolled in the Regional Interdisciplinary Internship course prepare final presentations covering all of their work during the spring semester and present their work to their colleagues, Linfield staff and faculty, community partners, and community sponsors of the internship programs. Kenja Wiseman interned with Yamhill Community Action Partnership (YCAP) and gave this presentation as part of his First Federal Internship during 2012

The effect of manuka honey on two-spotted lady beetle larvae, Adalia bipunctata L. (Coleoptera: Coccinellidae), infected with a microsporidian pathogen

1 online resource ( iii, 21 pages) : illustrationsIncludes abstract.Includes bibliographical references (pages 19-21).The full potential of biological control agents, such as the two-spotted lady beetle, Adalia bipunctata L., against insect pests greatly depends on the ability of the control agent to successfully mature to adulthood. Intracellular pathogens such as microsporidia, affect larval growth and development. Differences in food quality and quantity can also affect larval growth and development, as well as reproduction. The aim of this research is to determine whether the effects of the microsporidian pathogen, Nosema adaliae, is mitigated when its host, A. bipunctata, is reared on mixed diet of green peach aphid (Myzus persicae Sulzer) and antimicrobial manuka honey. Development and mortality of infected lady beetles were compared between four different treatment groups: the control group was provided aphids and water, whereas the three treatment groups were given aphids and three different dilutions of honey (5%, 10% and 15%), depending on the treatment. Larval development for the control was 15.9 ± 0.7 SE days, whereas larval development for the treatment groups was 13.8 ± 0.6, 13.8 ± 1.0, and 13.3 ± 0.9 days for larvae that were provided with 5%, 10% and 15% manuka honey, respectively. Our results indicated that the addition of manuka honey into the diet of infected A. bipunctata resulted in a decrease in larval development time while mortality and sex ratio were unaffected. This suggests that the addition of non-prey food such as manuka honey to an essential diet of M. persicae can shorten the larval development period. Further quantitative analysis would determine if there is a direct impact of manuka honey on the pathogen

Bitumlarning ekspluatatsion xossalari va ularni yaxshilash

Ushbu maqolada neftdan olinadigan bitumlarning turlari, tasnifi, asosiy xossalari va mahalliy ikkilamchi xom ashyolar asosida asfalt va bitumlarning mustahkamlik xossalarini yaxshilovchi va yaroqlilik muddatini oshiruvchi, import o`rnini bosuvchi ko`p funksiyali qo`ndirmalar ishlab chiqarish yoritilgan

HIV/AIDS Among Middle and Older Adults in Puerto Rico

Of all the AIDS cases reported through March 2004 in Puerto Rico, 34.8% were among the 40-59 age group, and 3.9% in persons 60 years and over. This represents 38.7% of all cases of AIDS in Puerto Rico. The percentage was higher among new AIDS cases diagnosed. Currently half of all new cases were 40 years and older. The most prevalent mode of exposure reported was related to sexual contact (heterosexual contact, male-male/bisexual sexual contact, male-male sexual contact and injection drug use). Injection drug use is identified as an important mode of exposure, particularly among males 40-59 years old. In the older generation, ignorance or the refusal to acknowledge their sexual interest and activity has resulted in a failure to adequately consider such health issues as sexually transmitted infections, including HIV in this population. Due to the increase of new AIDS cases and to the rapidly growing segment of the older adult population, middle and older adults are becoming an important group in need of HIV/AIDS prevention. With the intention of obtaining information on HIV risk factors among older adults a descriptive research was conducted. A non-probability sample of 157 men and 57 women 60 years and older from the San Juan Metropolitan Area was interviewed. The questionnaire included questions on HIV/AIDS knowledge, risk-perception, sexual practices, condom use and accessibility, HIV testing, alcohol and health and sociodemographic characteristics. The age range of the participants was 60-93 years old. The majority of respondents listed Social Security and food stamps as their primary source of income. Thirty-three percent of the male and 38.2% of the women perceived themselves as being at risk of HIV infection. Sexual relations during the last month were reported by 56.6% of the male and 13.2% of the women. They mention spouse, girl/boy friend as their usual partners; male also indicated casual partners and sex workers. The majority did not use condoms in their last sexual relation. Only 21% of males that reported sexual relations with sex worker always used condoms. Pharmacy was mentioned by the majority as the place where they obtain condoms. Forty five percent of female and 34% of the male had been tested for HIV. Gonorrhea was the most frequent sexually transmitted infection reported by males and trichomonas vaginalis by females. We are confronting a condition that affects the present population as well as future generations of older adults. Recommendations of health promotion and health education interventions that contribute to decrease the HIV/AIDS incidence and to eliminate stereotyping, discrimination and disparities in health care services for this population are identify

Community Engagement newsletter, Faculty of Veterinary Science, Summer, February 2018

Community education on small scale chicken farming / Mareli Smalberger -- Hluvukani experience / Elza Hollenbach, Melyssa van Heerden, Ivan van Wyk and Anke Venter -- Community engagement in stormy Cape Town / Lindi Smit, Carrea Greeff, Samantha Domenico and Fladia Buongiorno -- World Rabies Day: Faculty partners with GDARD and community partners at Temba Animal Clinic / Lesego Teffu (Public Relations Coordinator) and Dr Eugene Machimana (Senior Lecturer) -- Say bye to rabies, Mmammundu Primary School / Kenja-Lee MillarNews articles with colour photos about the various community engagement projects of the Faculty of Veterinary Science, University of Pretoria.ab201

Auxetic orthotropic materials: Numerical determination of a phenomenological spline-based stored density energy and its implementation for finite element analysis

Abstract Auxetic materials, which have negative Poisson’s ratio, show potential to be used in many interesting applications. Finite element analysis (FEA) is an important phase in implementing auxetic materials, but may become computationally expensive because simulation often needs microscale details and a fine mesh. It is also necessary to check that topological aspects of the microscale reflects not only micro but macromechanical behavior. This work presents a phenomenological approach to the problem using data-driven spline-based techniques to properly characterize orthotropic auxetic material requiring neither analytical constraints nor micromechanics, expanding on previous methods for isotropic materials. Hyperelastic energies of auxetic orthotropic material are determined from experimental data by solving the equilibrium differential functional equations directly, so no fitting or analytical estimation is necessary. This offers two advantages; (i) it allows the FEA study of orthotropic auxetic materials without requiring micromechanics considerations, reducing modeling and computational time costs by two to three orders of magnitude; (ii) it adapts the hyperelastic energies to the nature of the material with precision, which could be critical in scenarios where accuracy is essential (e.g. robotic surgery)