NEW PROGRAMS TO BENEFIT RURAL HOUSEHOLDS AND BUSINESSES

Consumer/Household Economics,

Creating UNICORNS: Teaching IEP Literacy and Accommodation Self-Advocacy Through Asynchronous Interactive Video Modules

Data indicate that individuals who disclose their disability status to self-advocate for accommodations at the postsecondary level may be as rare as the mythical unicorn. During the 2019–20 school year in the United States, 7.3 million public education students aged 3–21 years received some form of special education services. These students account for 14% of the nation’s public school enrollment (Irwin et al., 2021). In one study, only 20% of high school students reported having received any instruction on reading and understanding their own Individualized Education Program (IEP; Agran & Hughes, 2008). In another study, only 19% of postsecondary students reported receiving services or accommodations, while 87% of the same sample reported receiving services or accommodations at the secondary level (Raue et al., 2011). The current study explored the effects of a program designed to fill a research and instructional gap by teaching college-bound secondary students with hidden disabilities how to self-advocate for accommodations. The UNICORNS program delivered instruction via asynchronous interactive video modules (IVMs). The IVMs taught students about self-advocacy, and IEP literacy. The program used a mnemonic to teach eight target behaviors for self-advocating and requesting accommodations. The UNICORNS program included instruction on the four subskills within Test et al.’s (2005) conceptual model of self-advocacy. The study\u27s findings suggest that asynchronous IVMs positively impacted all participants. Implications for practice and future research are provided

High Efficiency Positron Accumulation for High-Precision Measurements

Positrons are accumulated within a Penning trap designed to make more precise measurements of the positron and electron magnetic moments. The retractable radioactive source used is weak enough to require no license for handling radioactive material and the radiation dosage one meter from the source gives an exposure several times smaller than the average radiation dose on the earth's surface. The 100 mK trap is mechanically aligned with the 4.2 K superconducting solenoid that produces a 6 tesla magnetic trapping field with a direct mechanical coupling.Comment: 7 pages, 9 figure

Building on Rural America's Competitiveness in a Global Marketplace

Food Consumption/Nutrition/Food Safety,

A 'p-n' diode with hole and electron-doped lanthanum manganite

The hole-doped manganite La0.7Ca0.3MnO3 and the electron-doped manganite La0.7Ce0.3MnO3 undergo an insulator to metal transition at around 250 K, above which both behave as a polaronic semiconductor. We have successfully fabricated an epitaxial trilayer (La0.7Ca0.3MnO3/SrTiO3/La0.7Ce0.3MnO3), where SrTiO3 is an insulator. At room temperature, i.e. in the semiconducting regime, it exhibits asymmetric current-voltage (I-V) characteristics akin to a p-n diode. The observed asymmetry in the I-V characteristics disappears at low temperatures where both the manganite layers are metallic. To the best of our knowledge, this is the first report of such a p-n diode, using the polaronic semiconducting regime of doped manganites.Comment: PostScript text and 2 figures, to be published in Appl. Phys. Lett

Using pentosidine and hydroxyproline to predict age and sex in an avian species

All living organisms are subject to senescence accompanied by progressive and irreversible physiological changes. The error damage and cross-linking theories suggest that cells and tissues are damaged by an accumulation of cross-linked proteins, slowing down bodily processes and resulting in aging. A major category of these cross-linked proteins are compounds called advanced glycation end products (AGEs). We investigated the relationship between accumulation of the AGE, pentosidine (Ps), and hydroxyproline (HYP) a post-translationally modified amino acid, with age, sex, and breeding status (breeder/ nonbreeder) from skin samples of known age (i.e., banded as fledglings), free-ranging Double-crested Cormorants (Phalacrocorax auritus, Lesson 1831). We developed multivariate models and evaluated the predictive capability of our models for determining age and breeding versus nonbreeding birds. We found significant relationships with Ps and HYP concentration and age, and Ps concentration and sex. Based on our two-class model using Ps and HYP as explanatory variables, we were able to accurately determine whether a cormorant was a breeder or nonbreeder in 83.5% of modeled classifications. Our data indicate that Ps and HYP concentrations can be used to determine breeding status of cormorants and potentially age of cormorants although sex-specific models may be necessary. Although the accumulation of Ps explained the greatest amount of variance in breeding status and age, importantly, Ps covaried with HYP and combined improved prediction of these demographics in cormorants. Our data support the error damage and cross-linking theories of aging. Both Ps and HYP increase predictably in cormorants and are predictive of age and breeding status. Given the ubiquity of these biomarkers across taxa, their use in estimating demographic characteristics of animals could provide a powerful tool in animal ecology, conservation, and management