1,075 research outputs found
Case Study Of A Small Scale Polytechnic Entrepreneurship Capstone Course Sequence
A multidisciplinary entrepreneurial senior capstone has been created for engineering technology students at a research I land-grant university statewide extension. The two semester course sequence welcomes students from Mechanical Engineering Technology, Electrical Engineering Technology, Computer Graphics Technology, and Organizational Leadership. The goal was to provide an avenue for technology students to learn about, actively participate in, and form small scale startups in a multidisciplinary approach. Student are introduced to fundamental techniques and methodologies for effective product development, such as design thinking, technical data package, rapid prototyping, testing, and validation. As well as entrepreneurship concepts, such as product ideation, market research, capital exploration, customer acquisition, customer discovery, intellectual protection, marketing and branding, and leadership. The capstone has provided real-world, hands-on learning of the components and processes necessary to take a product idea from initial concept to successful business. Currently entering in to its third year, the capstone continues to evolve. This paper presents a brief description of the capstone, including formation, execution, and outcomes. The curriculums used are outlined and future changes are discussed. Lastly, the presentation of challenges, lessons learned, and course accomplishments will be discussed
Falling Incapacity Benefit claims in a former industrial city: policy impacts or labour market improvement?
This article provides an in-depth study of Incapacity Benefit (IB) claims in a major city and of the factors behind their changing level. It relates to the regime prior to the introduction of the Employment and Support Allowance (ESA) in 2008. Glasgow has had one of the highest levels of IB in Britain with a peak of almost one fifth of the working age population on IB or Severe Disablement Allowance (SDA). However, over the past decade the number of IB claimants in Glasgow, as in other high claiming areas, has fallen at a faster rate than elsewhere, and Glasgow now has twice the national proportion of working-age people on IB/SDA rather than its peak of three times. The rise in IB in Glasgow can be attributed primarily to deindustrialisation; between 1971 and 1991, over 100,000 manufacturing jobs were lost in the city. Policy response was belated. Lack of local statistics on IB led to a lengthy delay in official recognition of the scale of the issue, and targeted programmes to divert or return IB claimants to work did not begin on any scale until around 2004. Evidence presented in the article suggests that the reduction in claims, which has mainly occurred since about 2003, has been due more to a strengthening labour market than to national policy changes or local programmes. This gives strong support to the view that excess IB claims are a form of disguised unemployment. Further detailed evaluation of ongoing programmes is required to develop the evidence base for this complex area. However, the study casts some doubt on the need for the post-2006 round of IB reforms in high-claim areas, since rapid decline in the number of claimants was already occurring in these areas. The article also indicates the importance of close joint working between national and local agencies, and further development of local level statistics on IB claimants
Land-use controls for outdoor recreation areas
Land-use planning and control is fast becoming a major issue in the United States. Dwindling natural resources, a growing population, a recognized need for a quality environment, and several incidents of controversial resource management have brought land-use problems to the public eye. State land-use legislation, numerous court cases, and extensive debate have resulted. Central to the general debate is concern over the role of government in this area, formerly considered to be the realm of the individual and private firm. This paper is designed to help clarify the role of government in land-use planning and control by analyzing the powers available to government entities in providing opportunities for outdoor recreation.https://lib.dr.iastate.edu/specialreports/1074/thumbnail.jp
Capillary-gravity waves: The effect of viscosity on the wave resistance
The effect of viscosity on the wave resistance experienced by a 2d
perturbation moving at uniform velocity over the free surface of a fluid is
investigated. The analysis is based on Rayleigh's linearized theory of
capillary-gravity waves. It is shown in particular that the wave resistance
remains bounded as the velocity of the perturbation approches the minimun phase
speed, unlike what is predicted by the inviscid theory.Comment: Europhysics Letters, in pres
Evaluation of Syracuse Healthy Start’s Program for Abnormal Flora Management to Reduce Preterm Birth Among Pregnant Women
Randomized trials of bacterial vaginosis (BV) treatment among pregnant women to reduce preterm birth have had mixed results. Among non-pregnant women, BV recurs frequently after treatment. Randomized trials of early BV treatment for pregnant women in which recurrence was retreated have shown promise in reducing preterm birth. Syracuse’s Healthy Start (SHS) program began in 1997; in 1998 prenatal care providers for pregnant women living in high infant mortality zip codes were encouraged to screen for abnormal vaginal flora at the first prenatal visit. Vaginal swabs were sent to a referral hospital laboratory for Gram staining and interpretation. SHS encouraged providers to treat and rescreen women with bacterial vaginosis or abnormal flora (BV). We abstracted prenatal and hospital charts of live births between January 2000 and March 2002 for maternal conditions and treatments. We merged abstracted data with local electronic data. We evaluated the effect of BV screening before 22 weeks gestation, treatment, and rescreening using a retrospective cohort study design. Among 838 women first screened before 22 weeks, 346 (41%) had normal flora and 492 (59%) women had BV at a mean of 13 weeks gestation; 202 (24%) did not have treatment documented and 290 (35%) received treatment at a mean of 15 weeks gestation; 267 (92%) of those treated were rescreened. Among pregnant women with early BV, 42 (21%) untreated women and 28 (10%) treated women delivered preterm (Odds Ratio [OR] 0.4, 95% confidence interval [CI] 0.2–0.7)). After adjustment for age, race, prior preterm birth and other possible confounders, treatment remained associated with a reduced risk of preterm birth compared to no treatment (aOR = 0.5, 95% CI 0.3–0.9); the aOR for women with normal flora was not significantly different. Conclusion: Screening, treatment, and rescreening for BV/abnormal flora between the first prenatal visit and 22 weeks gestation showed promise in reducing preterm births and deserves further study
Electronic Structure and Magnetic Exchange Coupling in Ferromagnetic Full Heusler Alloys
Density-functional studies of the electronic structures and exchange
interaction parameters have been performed for a series of ferromagnetic full
Heusler alloys of general formula CoMnZ (Z = Ga, Si, Ge, Sn), RhMnZ (Z
= Ge, Sn, Pb), NiMnSn, CuMnSn and PdMnSn, and the connection
between the electronic spectra and the magnetic interactions have been studied.
Different mechanisms contributing to the exchange coupling are revealed. The
band dependence of the exchange parameters, their dependence on volume and
valence electron concentration have been thoroughly analyzed within the Green
function technique.Comment: 9 figures, 6 table
Soil biocrusts affect metabolic response to hydration on dunes in west Queensland, Australia
Soil biocrusts, formed from communities of microbes and their extracellular products are a common feature of dryland soil surfaces. Biocrust organisms are only intermittently metabolically active, but due to their ubiquity they make a significant contribution to the carbon cycle. Quantification of the controls and insights into the interlinked process of photosynthesis and respiration are essential to enhancing our understanding of the carbon cycle in the world’s drylands. Yet, there have been relatively few field studies investigating controls on both biocrust photosynthesis and respiration. We undertook field-based experiments at two dune sites during the dry season in Diamantina National Park in Queensland, Australia to determine how biocrust hydration and illumination affect soil CO2 flux and photosynthesis. Static chambers and an infra-red gas analyser were used to quantify soil CO2 flux, and a fluorometer and a CFImager were used to determine a range of photosynthetic parameters in the field and laboratory respectively. When dry, biocrust photosynthetic activity was not detected and soil CO2 flux was very low irrespective of biocrust cover. Hydration led to a large and immediate increase in CO2 flux, which was more pronounced in the presence of biocrusts and on the dune with thinner biocrusts. Hydration also initiated the onset of photosynthesis in some biocrusts, which was greatest under low light conditions and sustained with further hydration. There were only infrequent periods of net CO2 uptake to the soil, occurring when CO2 uptake due to photosynthetic activity was less than background soil CO2 flux. Chlorophyll fluorescence imaging indicated biocrust spatial heterogeneity was evident at the cm scale where microtopography creates a myriad of environments for different crust organisms. Our findings demonstrate that biocrusts are highly spatially heterogenetic at both landscape and small scale, which suggests the maintenance of biocrust spatial diversity is likely to be key to imparting resilience to changing climate and disturbance. As well as reaffirming the importance of biocrusts for the carbon cycle in dryland dune soils the study demonstrates that biocrust respiration and photosynthesis respond differently to hydration and shading. This adds an unpredictability to the distribution of soil carbon stocks and the gaseous exchanges of CO2 between the surface and atmosphere. Future changes to precipitation and increased temperatures are likely to reduce soil moisture across much of the Australian interior and consequently biocrusts may experience a decline in biomass, structure, and function which could have significant repercussions beyond carbon stocks.Natural Environment Research Counci
Hubble Space Telescope Images of Magellanic Cloud Planetary Nebulae
We present images and slitless spectra which were obtained in HST surveys of
Planetary Nebulae (PNe) in both the Large and Small Magellanic Clouds, using
the Space Telescope Imaging Spectrograph. These new data on 59 PNe (54 in the
LMC and five in the SMC) permit us to determine the nebular dimensions and
morphology in the monochromatic light of several emission lines: Halpha, [N II]
lambda 6583 and [O III] lambda 5007, plus others of varying ionization,
including [O I], He I, and [S II]. We describe the nebular morphology and
related features in detail. This survey, when combined with similar data from
our prior HST programs and other archived PN images, brings the total of
nebulae imaged with HST to 114 in the LMC and 35 in the SMC. We describe
various basic properties for the sample, including sizes, morphologies,
densities, and completeness. Trends in [O III] lambda 5007 flux, surface
brightness, and electron density with physical radius suggest that many
nebulae, particularly those with bipolar morphology, may be optically thick
even at large size. Bipolars also show the most extreme values of [N II]/Halpha
flux ratios, which is a rough indicator N enrichment.Comment: Accepted for publication in the Astrophysical Journal, 65 pages, 26
figures, 6 tables. For a high resolution version of Figs 4 to 19, see
http://archive.stsci.edu/hst/mcpn/home.htm
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