125 research outputs found

    “My Name is My Password:” Understanding Children’s Authentication Practices

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    Children continue to use technology at an increasing rate, more and more of which require authentication via usernames and passwords.We seek to understand how children ages 5-11 years old create and use their credentials. We investigate children’s username and password understanding and practices from the perspective of both children and adults within the context of three security categories: credential composition (e.g. length of password), performance (e.g. time to enter), and credential mechanisms (e.g; a pattern or characters). We conducted a semi-structured interview with 22 children and an online survey with 33 adult participants (parents and teachers) to determine their practices and involvement in facilitating authentication for their children. Our study illustrates how children have a limited understanding of authentication, and that there are differences between children’s and adult’s understanding of good authentication and security practices, and what they actually do

    Developing Effective Faculty Competencies For Teaching International Business Topics

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    Faculty are increasingly called upon to teach topics in international business. To ensure teaching success, faculty need to develop knowledge of countries, international organizations, economies, culture, interpersonal skills in international settings, and foreign business practices. The purpose of the paper is to demonstrate how faculty can obtain the skills and knowledge necessary to teach international topics efficiently and cost effectively

    Searching for Spellcheckers: What Kids Want, What Kids Need

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    Misspellings in queries used to initiate online searches is an everyday occurrence. When this happens, users either rely on the search engine’s ability to understand their query or they turn to spellcheckers. Spellcheckers are usually based on popular dictionaries or past query logs, leading to spelling suggestions that often better resonate with adult users because that data is more readily available. Based on an educational perspective, previous research reports, and initial analyses of sample search logs, we hypothesize that existing spellcheckers are not suitable for young users who frequently encounter spelling challenges when searching for information online. We present early results of our ongoing research focused on identifying the needs and expectations children have regarding spellcheckers

    The Vehicle, February 1960, Vol. 2 no. 1

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    Vol. 2, No. 1 Table of Contents Editorialpage 2 A White Man\u27s BurdenRobert Mills Frenchpage 4 Passing TrainWayne Bakerpage 8 AutumnMajor Dan Ragainpage 8 Chaos in CulturevilleJ.B. Youngpage 9 Cure-allJerry N. Whitepage 13 Love-Long DistanceMary Ellen Mockbeepage 13 Metropolitan CaravanThomas McPeakpage 14 Ode to the Lion HuntersRichard Blairpage 16 ImmortalityM.E.M.page 16 EntranceSam Martinpage 16https://thekeep.eiu.edu/vehicle/1006/thumbnail.jp

    The Vehicle, February 1960, Vol. 2 no. 1

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    Vol. 2, No. 1 Table of Contents Editorialpage 2 A White Man\u27s BurdenRobert Mills Frenchpage 4 Passing TrainWayne Bakerpage 8 AutumnMajor Dan Ragainpage 8 Chaos in CulturevilleJ.B. Youngpage 9 Cure-allJerry N. Whitepage 13 Love-Long DistanceMary Ellen Mockbeepage 13 Metropolitan CaravanThomas McPeakpage 14 Ode to the Lion HuntersRichard Blairpage 16 ImmortalityM.E.M.page 16 EntranceSam Martinpage 16https://thekeep.eiu.edu/vehicle/1006/thumbnail.jp

    The Vehicle, June 1960, Vol. 2 no. 3

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    Vol. 2, No. 3 To the ReaderRobert Mills Frenchpage 2 Blue-Nosed RobinThomas McPeakpage 3 Forest EtudeJames M. Jenkinsonpage 7 Chant For The MenJerry Whitepage 8 It\u27s OK Now, Chief J.B. Youngpage 9 Magic WordsKathleen Ferreepage 11 SpurnedRay Hoopspage 12 Danger!A. Seerpage 13 GenecideGeorge Fosterpage 14 To a Stern ParentC.E.S.page 14 ReservationNeil O. Parkerpage 14 The Worm and IRichard Blairpage 15 One Way -- Non-TransferableRobert Mills Frenchpage 15 NorthlightEDSpage 16https://thekeep.eiu.edu/vehicle/1007/thumbnail.jp

    CO2 and CH4 exchanges between land ecosystems and the atmosphere in northern high latitudes over the 21st century

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    Author Posting. © American Geophysical Union, 2006. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 33 (2006): L17403, doi:10.1029/2006GL026972.Terrestrial ecosystems of the northern high latitudes (above 50oN) exchange large amounts of CO2 and CH4 with the atmosphere each year. Here we use a process-based model to estimate the budget of CO2 and CH4 of the region for current climate conditions and for future scenarios by considering effects of permafrost dynamics, CO2 fertilization of photosynthesis and fire. We find that currently the region is a net source of carbon to the atmosphere at 276 Tg C yr-1. We project that throughout the 21st century, the region will most likely continue as a net source of carbon and the source will increase by up to 473 Tg C yr-1 by the end of the century compared to the current emissions. However our coupled carbon and climate model simulations show that these emissions will exert relatively small radiative forcing on global climate system compared to large amounts of anthropogenic emissions.This study was supported by a NSF Biocomplexity (ATM-0120468) and ARCSS programs; the NASA Land Cover and Land Use Change and EOS Interdisciplinary Science (NNG04GJ80G) programs; and by funding from MIT Joint Program on the Science and Policy of Global Change, which is supported by a consortium of government, industry and foundation sponsors

    Human Reliability Analysis: A Review and Critique

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    Few systems operate completely independent of humans. Thus any study of system risk or reliability requires analysis of the potential for failure arising from human activities in operating and managing this. Human reliability analysis (HRA) grew up in the 1960s with the intention of modelling the likelihood and consequences of human error. Initially, it treated the humans as any other component in the system. They could fail and the consequences of their failure were examined by tracing the effects through a fault tree. Thus to conduct a HRA one had to assess the probability of various operator errors, be they errors of omission or commission. First generation HRA may have used some sophistication in accomplishing this, but in essence that is all they did. Over the years, methods have been developed that recognise human potential to recover from a failure, on the one hand, and the effects of stress and organisational culture on the likelihood of possible errors, on the other. But no method has yet been developed which incorporates all our understanding of individual, team and organisational behaviour into overall assessments of system risk or reliability

    Substituting abacavir for hyperlipidemia-associated protease inhibitors in HAART regimens improves fasting lipid profiles, maintains virologic suppression, and simplifies treatment

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    BACKGROUND: Hyperlipidemia secondary to protease inhibitors (PI) may abate by switching to anti-HIV medications without lipid effects. METHOD: An open-label, randomized pilot study compared changes in fasting lipids and HIV-1 RNA in 104 HIV-infected adults with PI-associated hyperlipidemia (fasting serum total cholesterol >200 mg/dL) who were randomized either to a regimen in which their PI was replaced by abacavir 300 mg twice daily (n = 52) or a regimen in which their PI was continued (n = 52) for 28 weeks. All patients had undetectable viral loads (HIV-1 RNA <50 copies/mL) at baseline and were naĂŻve to abacavir and non-nucleoside reverse transcriptase inhibitors. RESULTS: At baseline, the mean total cholesterol was 243 mg/dL, low density lipoprotein (LDL)-cholesterol 149 mg/dL, high density lipoprotein (HDL)-cholesterol 41 mg/dL, and triglycerides 310 mg/dL. Mean CD4+ cell counts were 551 and 531 cells/mm(3 )in the abacavir-switch and PI-continuation arms, respectively. At week 28, the abacavir-switch arm had significantly greater least square mean reduction from baseline in total cholesterol (-42 vs -10 mg/dL, P < 0.001), LDL-cholesterol (-14 vs +5 mg/dL, P = 0.016), and triglycerides (-134 vs -36 mg/dL, P = 0.019) than the PI-continuation arm, with no differences in HDL-cholesterol (+0.2 vs +1.3 mg/dL, P = 0.583). A higher proportion of patients in the abacavir-switch arm had decreases in protocol-defined total cholesterol and triglyceride toxicity grades, whereas a smaller proportion had increases in these toxicity grades. At week 28, an intent-to treat: missing = failure analysis showed that the abacavir-switch and PI-continuation arms did not differ significantly with respect to proportion of patients maintaining HIV-1 RNA <400 or <50 copies/mL or adjusted mean change from baseline in CD4+ cell count. Two possible abacavir-related hypersensitivity reactions were reported. No significant changes in glucose, insulin, insulin resistance, C-peptide, or waist-to-hip ratios were observed in either treatment arm, nor were differences in these parameters noted between treatments. CONCLUSION: In hyperlipidemic, antiretroviral-experienced patients with HIV-1 RNA levels <50 copies/mL and CD4+ cell counts >500 cells/mm(3), substituting abacavir for hyperlipidemia-associated PIs in combination antiretroviral regimens improves lipid profiles and maintains virologic suppression over a 28-week period, and it simplifies treatment
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