890 research outputs found
RadioSource.NET: Case-study of a Collaborative Land-Grant Internet Audio Project
RadioSource.NET (http://radiosource.net) is a Web-portal news site for land-grant university radio programming. The project is a collaborative venture among university communication departments with the following goals: to share resources; increase online distribution; and promote access to agricultural and natural and life science research.
This article is a case study of RadioSource.NET. The evolution of the RadioSource.NET project is examined with emphasis on the process of establishing and maintaining online collaborative partnerships within academia. The project’s development is described and discussed, and Wheeler, Valacich, Alavi, and Vogel’s (1995) framework for technology-mediated interinstitutional relationships for collaborative learning is used to help organize information and evaluate the project’s effectiveness.
RadioSource.NET project is an example of successful university collaboration in new media. By utilizing a flexible system design, RadioSource.NET capitalizes on collaborative strengths such as increased innovation and efficiency, and it is anticipated that the project model can serve as a useful resource for other online collaborative endeavors utilizing emerging technologies
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A Multi-Criteria Evaluation Model for Rapid Assessment and GIS Mapping of Ecological Values for Informed Land Use in Small-Island Developing States
Small-island developing states (SIDS) contain some of the most biodiverse ecosystems on earth (Churchyard et al., 2014), yet these countries suffer from pandemic sustainable policy failure (Mycoo, 2006), leading to significant losses in ecological assets and ecosystem services (Albuquerque & McElroy, 1992; McElroy, 2003). Many sustainability issues in SIDS arise from uninformed development practices due to a lack of economic and human resources to inform sustainable land use planning (Ghina, 2003; Douglas, 2006; Global Conference on the Sustainable Development of Small Island Developing States, 1994).
I developed a multi-criteria evaluation model (MCEM) to assess biodiversity and ecosystem service values and to address the resource limitations of SIDS. The applied MCEM combined literature review, remote sensing, rapid ecological assessment, GIS mapping and data analysis. Procedures were standardized for ease of implementation and affordability for SIDS. Presence/absence of 16 evaluation criteria, recorded during field studies, provided objective data for the MCEM, which can be applied to any land or marine area and employs readily available open-access software and imagery, thus being particularly relevant to the needs and resource limitations of SIDS.
I implemented the MCEM as a case study on East Caicos, the largest uninhabited island in the Caribbean, located in the Turks and Caicos Islands (TCI) and currently experiencing pressure from proposed tourism development (Turks and Caicos Sun, 2013). Results indicate that the island possesses some of the most significant conservation interests in the Caribbean region. The entire island and surrounding marine habitats is an intact landscape-level ecosystem mosaic, with some of the best-preserved coral reefs, estuarine and palustrine wetlands and tropical dry forest, woodland and shrubland formations in the Lucayan Archipelago. Numerous rare, threatened, endangered and endemic species include, but are not limited to, the largest known population of the TCI endemic and IUCN Critically Endangered Caroline’s pink (Stenandrium carolinae); significant populations of IUCN Endangered and Critically Endangered coral species staghorn (Acropora cervicornis), elkhorn (A. palmata) and boulder star (Orbicella annularis complex); and significant nesting populations of IUCN Critically Endangered and Endangered sea turtles Eretmochelys imbricata and Chelonia mydas. Symbolic and experiential cultural values occur throughout the island and include Lucayan archaeological sites, areas of outstanding natural beauty and areas of scientific interest. The East Caicos multi-criteria evaluation also identified wide distributions of all other MCEM criteria.
Results suggest that the best land use for this remote island would be facilitated by the development of a multi-faceted, sustainable ecotourism plan that provides culturally appropriate, economic opportunities for local human populations, while at the same time conserving and sustaining the island’s outstanding biodiversity and ecosystem values
Inpatient urine cultures are frequently performed without urinalysis or microscopy: Findings from a large academic medical center
OBJECTIVETo describe the frequency of urine cultures performed in inpatients without additional testing for pyuriaDESIGNRetrospective cohort studySETTINGA 1,250-bed academic tertiary referral centerPATIENTSHospitalized adultsMETHODSThis study included urine cultures drawn on 4 medical and 2 surgical wards from 2009 to 2013 and in the medical and surgical intensive care units (ICUs) from 2012 to 2013. Patient and laboratory data were abstracted from the hospital’s medical informatics database. We identified catheter-associated urinary tract infections (CAUTIs) in the ICUs by routine infection prevention surveillance. Cultures without urinalysis or urine microscopy were defined as “isolated.” The primary outcome was the proportion of isolated urine cultures obtained. We used multivariable logistic regression to assess predictors of isolated cultures.RESULTSDuring the study period, 14,743 urine cultures were obtained (63.5 cultures per 1,000 patient days) during 11,820 patient admissions. Of these, 2,973 cultures (20.2%) were isolated cultures. Of the 61 CAUTIs identified, 31 (50.8%) were identified by an isolated culture. Predictors for having an isolated culture included male gender (adjusted odds ratio [aOR], 1.22; 95%; confidence interval [CI], 1.11–1.35], urinary catheterization (aOR, 2.15; 95% CI, 1.89–2.46), ICU admission (medical ICU aOR, 1.72; 95% CI, 1.47–2.00; surgical ICU aOR, 1.82; 95% CI, 1.51–2.19), and obtaining the urine culture ≥1 calendar day after admission (1–7 days aOR, 1.91; 95% CI. 1.71–2.12; >7 days after admission aOR, 2.81; 95% CI, 2.37–3.34).CONCLUSIONSIsolated urine cultures are common in hospitalized patients, particularly in patients with urinary catheters and those in ICUs. Interventions targeting inpatient culturing practices may improve the diagnosis of urinary tract infections.Infect Control Hosp Epidemiol2017;38:455–460</jats:sec
A Post-AGB Star in the Small Magellanic Cloud Observed with the Spitzer Infrared Spectrograph
We have observed an evolved star with a rare combination of spectral
features, MSX SMC 029, in the Small Magellanic Cloud (SMC) using the
low-resolution modules of the Infrared Spectrograph on the Spitzer Space
Telescope. A cool dust continuum dominates the spectrum of MSX SMC 029. The
spectrum also shows both emission from polycyclic aromatic hydrocarbons (PAHs)
and absorption at 13.7 micron from C2H2, a juxtaposition seen in only two other
sources, AFGL 2688 and IRAS 13416-6243, both post-asymptotic giant branch (AGB)
objects. As in these sources, the PAH spectrum has the unusual trait that the
peak emission in the 7-9 micron complex lies beyond 8.0 micron. In addition,
the 8.6 micron feature has an intensity as strong as the C-C modes which
normally peak between 7.7 and 7.9 micron. The relative flux of the feature at
11.3 micron to that at 8 micron suggests that the PAHs in MSX SMC 029 either
have a low ionization fraction or are largely unprocessed. The 13-16 micron
wavelength region shows strong absorption features similar to those observed in
the post-AGB objects AFGL 618 and SMP LMC 11. This broad absorption may arise
from the same molecules which have been identified in those sources: C2H2,
C4H2, HC3N, and C6H6. The similarities between MSX SMC 029, AFGL 2688, and AFGL
618 lead us to conclude that MSX SMC 029 has evolved off the AGB in only the
past few hundred years, making it the third post-AGB object identified in the
SMC.Comment: 4 figures, Fig. 4 color; to appear in the 20 November 2006
Astrophysical Journal Letter
Public Scholarship at Indiana University-Purdue University
Community engagement is a defining attribute of the campus, and the
current Strategic Plan identifies a number of strategic actions to “Deepen
our Commitment to Community Engagement.” In May 2015, A Faculty
Learning Community (FLC) on Public Scholarship was established in
May, 2015 to address the campus strategic goals to “recognize and reward
contributions to community engagement” and “define community
engagement work…in Faculty Annual Reports and promotion and tenure
guidelines.” At IUPUI, scholarly work occurs in research and creative
activity, teaching, and/or service. In terms of promotion and tenure, faculty
members must declare an area of excellence in one of these three domains.
The FLC on Public Scholarship is a 3-year initiative co-sponsored by
Academic Affairs and the Center for Service and Learning (CSL). Seven
faculty members from across campus were selected to be part of the
2015-2016 FLC, and two co-chairs worked closely with CSL staff to plan
and facilitate the ongoing work. The FLC is charged with defining public
scholarship, identifying criteria to evaluate this type of scholarship, assist
faculty in documenting their community-engaged work, and working with
department Chairs and Deans in adapting criteria into promotion and
tenure materials. The intended audiences for this work includes faculty,
community-engaged scholars, public scholars, promotion and tenure
committees, external reviewers, and department Chairs and Deans. The
following provides background to the campus context and a brief summary
of work to date, including definition and proposed criteria to evaluate public
scholarship.IUPUI Center for Service and Learning; IUPUI Office of Academic Affair
A Dysregulated Endocannabinoid-Eicosanoid Network Supports Pathogenesis in a Mouse Model of Alzheimer's Disease
SummaryAlthough inflammation in the brain is meant as a defense mechanism against neurotoxic stimuli, increasing evidence suggests that uncontrolled, chronic, and persistent inflammation contributes to neurodegeneration. Most neurodegenerative diseases have now been associated with chronic inflammation, including Alzheimer's disease (AD). Whether anti-inflammatory approaches can be used to treat AD, however, is a major unanswered question. We recently demonstrated that monoacylglycerol lipase (MAGL) hydrolyzes endocannabinoids to generate the primary arachidonic acid pool for neuroinflammatory prostaglandins. In this study, we show that genetic inactivation of MAGL attenuates neuroinflammation and lowers amyloid β levels and plaques in an AD mouse model. We also find that pharmacological blockade of MAGL recapitulates the cytokine-lowering effects through reduced prostaglandin production, rather than enhanced endocannabinoid signaling. Our findings thus reveal a role of MAGL in modulating neuroinflammation and amyloidosis in AD etiology and put forth MAGL inhibitors as a potential next-generation strategy for combating AD
R CrB Candidates in the Small Magellanic Cloud: Observations of Cold, Featureless Dust with the Spitzer Infrared Spectrograph
We observed 36 evolved stars in the Small Magellanic Cloud (SMC) using the
low-resolution mode of the Infrared Spectrograph (IRS) on the Spitzer Space
Telescope. Two of these stars, MSX SMC 014 and 155, have nearly featureless
spectral energy distributions over the IRS wavelength range (5.2-35 um) and
F_nu peaking at ~8-9 um. The data can be fit by sets of amorphous carbon shells
or by single 600-700 K blackbodies. The most similar spectra found in extant
spectral databases are of R CrB, although the spectral structure seen in R CrB
and similar stars is much weaker or absent in the SMC sources. Both SMC stars
show variability in the near-infrared. Ground-based visual spectra confirm that
MSX SMC 155 is carbon-rich, as expected for R CrB (RCB) stars, and coincides
with an object previously identified as an RCB candidate. The temperature of
the underlying star is lower for MSX SMC 155 than for typical RCB stars. The
strength of the C_2 Swan bands and the low temperature suggest that it may be a
rare DY Per-type star, only the fifth such identified. MSX SMC 014 represents a
new RCB candidate in the SMC, bringing the number of RCB candidates in the SMC
to six. It is the first RCB candidate discovered with Spitzer and the first
identified by its infrared spectral characteristics rather than its visual
variability.Comment: Accepted by ApJ Letters 25 August, 2005, 4 pages (emulateapj), 5
figure
Spectropathology for the Next Generation: Quo vadis?
Although the potential of vibrational spectroscopy for biomedical applications has been well demonstrated, translation into clinical practice has been relatively slow. This Editorial assesses the challenges facing the field and the potential way forward. While many technological challenges have been addressed to date, considerable effort is still required to gain acceptance of the techniques among the medical community, standardise protocols, extend to a clinically relevant scale, and ultimately assess the health economics underlying clinical deployment. National and international research networks can contribute much to technology development and standardisation. Ultimately, large-scale funding is required to engage in clinical trials and instrument development
Do the photometric colors of Type II-P Supernovae allow accurate determination of host galaxy extinction?
We present infrared photometry of SN 1999em, plus optical photometry,
infrared photometry, and optical spectroscopy of SN 2003hn. Both objects were
Type II-P supernovae. The V-[RIJHK] color curves of these supernovae evolved in
a very similar fashion until the end of plateau phase. This allows us to
determine how much more extinction the light of SN 2003hn suffered compared to
SN 1999em. Since we have an estimate of the total extinction suffered by SN
1999em from model fits of ground-based and space-based spectra as well as
photometry of SN 1999em, we can estimate the total extinction and absolute
magnitudes of SN 2003hn with reasonable accuracy. Since the host galaxy of SN
2003hn also produced the Type Ia SN 2001el, we can directly compare the
absolute magnitudes of these two SNe of different types.Comment: 24 pages, 6 figure
Research Needs for Effective Transition in Lifelong Care of Congenital Genitourinary Conditions: A Workshop Sponsored by the National Institute of Diabetes and Digestive and Kidney Diseases
Over the last 5 decades, health-care advances have yielded quantum improvements in the life expectancy of individuals with congenital genitourinary conditions (CGCs), leading to a crisis of care. Many individuals with CGC enter adulthood unprepared to manage their condition. Pediatric CGC specialists lack training to manage adulthood-related health-care issues, whereas adult genitourinary specialists lack training within the context of CGCs. To address these challenges, the National Institutes of Diabetes and Digestive and Kidney Diseases convened individuals with CGCs and experts from a variety of fields to identify research needs to improve transitional urology care. This paper outlines identified research needs
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