UNDERSTANDING FIRST-YEAR UNDERGRADUATE STUDENTS SAFETY, SAVVINESS, AND SOCIAL ETIQUETTE ONLINE

Student’s engagement and interaction online continue to grow as technological advancements increase. The ability to engage and connect is endless today compared to two decades ago. This mixed methods action research study examines the digital citizenship knowledge of first-year students at a private liberal arts work college. The study focuses on student’s understanding of digital citizenship through the lens of safety, savviness, and social engagement online. Additionally, the study seeks to explore students, staff, and faculty perceptions around more education about digital citizenship at the undergraduate level. This study discusses the problem of practice, methodological framework, and study plan in detail. Results from this study have the potential to help first-year undergraduate students better understand digital citizenship to increase their awareness of best practices of online engagement

Double Immunofluorescence Microscopy: A Method for Localizing Immune Deposits in Skin Diseases Associated with Linear Basement Membrane Zone Immunofluorescence

Direct immunofluorescence microscopy has shown that a linear pattern of immunoglobulin and/or complement deposition at the cutaneous basement membrane zone is a characteristic feature in a number of acquired bullous diseases and is occasionally observed in systemic lupus erythematosus. Immunoelectron microscopy has shown the linear pattern of immunofluorescence may be produced by immune deposits located either above the basal lamina (in the lamina lucida) or below the basal lamina (in the upper dermis). Distinguishing between these sites of immune reactant deposition may be of value in differential diagnosis. In this study we report a double immunofluorescent method by which skin biopsies with linear IgG immunofluorescence due to deposits above the basal lamina (bullous pemphigoid) could be distinguished from biopsies with deposits beneath the basal lamina (bullous systemic lupus erythematosus and epidermolysis bullosa acquisita). When skin sections were treated sequentially with rhodamine-labeled anti-human IgG followed by fluorescein-labeled antilamina lucida (pemphigoid) antibody and examined by fluorescence microscopy, the following results were obtained. In biopsies with IgG deposits in the lamina lucida, a single green fluorescent band was observed. In tissues with subbasal lamina deposits, either parallel and contiguous bands of green and yellow-orange fluorescence or a single band of yellow-orange fluorescence was observed. The method is simpler, quicker, and less expensive than immunoelectron microscopy and should be a useful technique for evaluating skin diseases with linear immunofluorescence at the basement membrane zone

Susceptibility of bulgur to infestation of five internally-feeding stored-grain insects at three relative humidities

Call number: LD2668 .T4 1969 L67Master of Scienc

Effects of Strip Cropping Cotton and Other Field Crops on the Abundance of Predatory and Injurious Insects in Cotton in Relation to Damage, Yield, and Lint Quality

Entomolog

Integrating Educational Technology to Increase Academic Performance of Sixth-Grade Mathematics Students

The purpose of this study was to determine if the use of educational software contributed to increasing the academic performance of 6th-grade students in mathematics. The specific programs used were the Florida Comprehensive Assessment Test (FCAT) Explorer and Promethean ActivBoard. This summative quantitative study was guided by 3 research questions: 1. What was the effect of technology, specifically the Promethean ActivBoard and the FCAT Explorer, on the achievement in mathematics of 6th-grade students, as measured by district benchmark assessments? 2. What was the difference in mathematics achievement, if any, between male and female 6th-grade students following the use of technology, specifically the Promethean ActivBoard and the FCAT Explorer, as measured by district benchmark assessments? 3. What was the effect of technology, specifically the Promethean ActivBoard and the FCAT Explorer, on the achievement in mathematics of African American 6th-grade students, as measured by district benchmark assessments? Participants were 6th-grade teachers and students in the experimental and control groups. Participants were 59 students in the experimental group and 61 in the control group. Students who used FCAT Explorer and the Promethean ActivBoard showed better scores on a posttest and larger percentage increase in scores than the control group. Male students in the experimental group showed the greatest increase in scores. African American students who also used FCAT Explorer and the Promethean ActivBoard scored higher than those African American students who did not use any form of technology as a supplement to learning

Purdue Conference on Active Nonproliferation

Design a small modular reactor that is easily transportable for use in disaster relief as well as remote military outposts. A rail shippable reactor gives quick and easy transportation from one part of a country to another. The reactor must have a three MWe production capacity to ensure the reactor has the performance to power larger government facilities, such as hospitals and water treatment plants. The reactor must have enough fuel for a six-month minimum fuel cycle. Atmospheric cooling only provides the ability to reject heat to the atmosphere, minimizing the weight requirements. Uranium fuel will have a maximum of 19.75% enrichment, to minimize proliferation concerns with the reactor

Ultraluminous infrared galaxies: mergers of sub-L* galaxies?

A sample of 27 low-redshift, mostly cool, ultraluminous infrared galaxies (ULIRGs) has been imaged at 1.6 μm with the Hubble Space Telescope (HST) Near-Infrared Camera and Multi-Object Spectrometer (NICMOS). The majority (67%) of the sample's galaxies are multiple-nucleus galaxies with projected separations of up to 17 kpc, and the rest of the sample (33%) are single-nucleus galaxies, as determined by the NICMOS angular resolution limit. The average observed, integrated (host+nucleus) H magnitude of our HST H sample ULIRGs is -24.3, slightly above that of an L* galaxy (MH = -24.2), and 52% of the sample's galaxies have sub-L* luminosities. The ULIRGs in the HST H sample are not generated as a result of the merging of two luminous (i.e., ≥L*) spiral galaxies. Instead, the interactions and mergers occur in general between two, or in some cases more, less massive sub-L* (0.3-0.5L*) galaxies. Only one out of the 49 nuclei identified in the entire HST H sample has the properties of a bright quasar-like nucleus. On average, the brightest nuclei in the HST H sample galaxies (i.e., cool ULIRGs) are 1.2 mag fainter than warm ULIRGs and low-luminosity Bright Quasar Survey quasars (BQS QSOs) and 2.6 mag fainter than high-luminosity BQS QSOs. Since the progenitor galaxies involved in the merger are sub-L* galaxies, the mass of the central black hole in these ULIRGs would be only about (1-2) × 107 M☉, if the bulge-to-black hole mass ratio of nearby galaxies holds for ULIRGs. The estimated mass of the central black hole is similar to that of nearby Seyfert 2 galaxies but at least 1 order of magnitude lower than the massive black holes thought to be located at the center of high-luminosity QSOs. Massive nuclear starbursts with constant star formation rates of 10-40 M☉ yr-1 could contribute significantly to the nuclear H-band flux and are consistent with the observed nuclear H-band magnitudes of the ULIRGs in the HST H sample. An evolutionary merging scenario is proposed for the generation of the different types of ULIRGs and QSOs on the basis of the masses of the progenitors involved in the merging process. According to this scenario, cool ULIRGs would be the end product of the merging of two or more low-mass (0.3L*-0.5L*) disk galaxies. Warm ULIRGs and low-luminosity QSOs would be generated by a merger involving intermediate-mass (0.5 L*) disk galaxies. Under this scenario, warm ULIRGs could still be the dust-enshrouded phases of UV-bright low-luminosity QSOs, but cool ULIRGs, which are most ULIRGs, would not evolve into QSOs