995 research outputs found
A Multi-Institutional Partnership Catalyzing the Commercialization of Medical Devices and Biotechnology Products.
The commercialization of medical devices and biotechnology products is characterized by high failure rates and long development lead times particularly among start-up enterprises. To increase the success rate of these high-risk ventures, the University of Massachusetts Lowell (UML) and University of Massachusetts Medical School (UMMS) partnered to create key academic support centers with programs to accelerate entrepreneurship and innovation in this industry. In 2008, UML and UMMS founded the Massachusetts Medical Device Development Center (M2D2), which is a business and technology incubator that provides business planning, product prototyping, laboratory services, access to clinical testing, and ecosystem networking to medical device and biotech startup firms. M2D2 has three physical locations that encompass approximately 40,000 square feet. Recently, M2D2 leveraged these resources to expand into new areas such as health security, point of care technologies for heart, lung, blood, and sleep disorders, and rapid diagnostics to detect SARS-CoV-2. Since its inception, M2D2 has vetted approximately 260 medical device and biotech start-up companies for inclusion in its programs and provided active support to more than 80 firms. This manuscript describes how two UMass campuses leveraged institutional, state, and Federal resources to create a thriving entrepreneurial environment for medical device and biotech companies
Tumor Drug Penetration Measurements Could Be the Neglected Piece of the Personalized Cancer Treatment Puzzle
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/150514/1/cpt1211.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/150514/2/cpt1211_am.pd
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A Novel Approach to Identifying Trajectories of Mobility Change in Older Adults
Objectives: To validate trajectories of late-life mobility change using a novel approach designed to overcome the constraints of modest sample size and few follow-up time points. Methods: Using clinical reasoning and distribution-based methodology, we identified trajectories of mobility change (Late Life Function and Disability Instrument) across 2 years in 391 participants age â„65 years from a prospective cohort study designed to identify modifiable impairments predictive of mobility in late-life. We validated our approach using model fit indices and comparing baseline mobility-related factors between trajectories. Results: Model fit indices confirmed that the optimal number of trajectories were between 4 and 6. Mobility-related factors varied across trajectories with the most unfavorable values in poor mobility trajectories and the most favorable in high mobility trajectories. These factors included leg strength, trunk extension endurance, knee flexion range of motion, limb velocity, physical performance measures, and the number and prevalence of medical conditions including osteoarthritis and back pain. Conclusions: Our findings support the validity of this approach and may facilitate the investigation of a broader scope of research questions within aging populations of varied sizes and traits
The impact of generation and socioeconomic status on the value of higher education in the UAE: A longitudinal study
© 2017 This study explores the differences between student and parentsâ value orientation for a college degree across a large sample in the UAE. The value of obtaining a higher education degree in the UAE is transgenerational. Salient benefits of a college degree can be categorized by economic, social and entrepreneurial factors and a model is set forth based on an intrinsic/extrinsic and self vs. other continuum. Education and income are related to valuing several educational outcomes. The most important factor identified across generations included both self-transcendence and self-enhancement values. From 2011â2015, the importance of higher education\u27s social benefits has increased
Constraining Exoplanet Metallicities and Aerosols with ARIEL: An Independent Study by the Contribution to ARIEL Spectroscopy of Exoplanets (CASE) Team
Launching in 2028, ESA's Atmospheric Remote-sensing Exoplanet Large-survey
(ARIEL) survey of 1000 transiting exoplanets will build on the legacies
of Kepler and TESS and complement JWST by placing its high precision exoplanet
observations into a large, statistically-significant planetary population
context. With continuous 0.5--7.8~m coverage from both FGS (0.50--0.55,
0.8--1.0, and 1.0--1.2~m photometry; 1.25--1.95~m spectroscopy) and
AIRS (1.95--7.80~m spectroscopy), ARIEL will determine atmospheric
compositions and probe planetary formation histories during its 3.5-year
mission. NASA's proposed Contribution to ARIEL Spectroscopy of Exoplanets
(CASE) would be a subsystem of ARIEL's FGS instrument consisting of two
visible-to-infrared detectors, associated readout electronics, and thermal
control hardware. FGS, to be built by the Polish Academy of Sciences' Space
Research Centre, will provide both fine guiding and visible to near-infrared
photometry and spectroscopy, providing powerful diagnostics of atmospheric
aerosol contribution and planetary albedo, which play a crucial role in
establishing planetary energy balance. The CASE team presents here an
independent study of the capabilities of ARIEL to measure exoplanetary
metallicities, which probe the conditions of planet formation, and FGS to
measure scattering spectral slopes, which indicate if an exoplanet has
atmospheric aerosols (clouds and hazes), and geometric albedos, which help
establish planetary climate. Our design reference mission simulations show that
ARIEL could measure the mass-metallicity relationship of its 1000-planet
single-visit sample to and that FGS could distinguish between
clear, cloudy, and hazy skies and constrain an exoplanet's atmospheric aerosol
composition to for hundreds of targets, providing
statistically-transformative science for exoplanet atmospheres.Comment: accepted to PASP; 23 pages, 6 figure
Two warm, low-density sub-Jovian planets orbiting bright stars in K2 campaigns 13 and 14
We report the discovery of two planets transiting the bright stars HD 89345
(EPIC 248777106, , ) in K2 Campaign 14 and HD 286123 (EPIC
247098361, , ) in K2 Campaign 13. Both stars are G-type
stars, one of which is at or near the end of its main sequence lifetime, and
the other that is just over halfway through its main sequence lifetime. HD
89345 hosts a warm sub-Saturn (0.66 , 0.11 , K)
in an 11.81-day orbit. The planet is similar in size to WASP-107b, which falls
in the transition region between ice giants and gas giants. HD 286123 hosts a
Jupiter-sized, low-mass planet (1.06 , 0.39 , K)
in an 11.17-day, mildly eccentric orbit, with . Given that
they orbit relatively evolved main-sequence stars and have orbital periods
longer than 10 days, these planets are interesting candidates for studies of
gas planet evolution, migration, and (potentially) re-inflation. Both planets
have spent their entire lifetimes near the proposed stellar irradiation
threshold at which giant planets become inflated, and neither shows any sign of
radius inflation. They probe the regime where inflation begins to become
noticeable and are valuable in constraining planet inflation models. In
addition, the brightness of the host stars, combined with large atmospheric
scale heights of the planets, makes these two systems favorable targets for
transit spectroscopy to study their atmospheres and perhaps provide insight
into the physical mechanisms that lead to inflated hot Jupiters.Comment: 16 pages, 12 figures; accepted for publication in A
Synaptic Vesicle Docking: Sphingosine Regulates Syntaxin1 Interaction with Munc18
Consensus exists that lipids must play key functions in synaptic activity but precise mechanistic information is limited. Acid sphingomyelinase knockout mice (ASMko) are a suitable model to address the role of sphingolipids in synaptic regulation as they recapitulate a mental retardation syndrome, Niemann Pick disease type A (NPA), and their neurons have altered levels of sphingomyelin (SM) and its derivatives. Electrophysiological recordings showed that ASMko hippocampi have increased paired-pulse facilitation and post-tetanic potentiation. Consistently, electron microscopy revealed reduced number of docked vesicles. Biochemical analysis of ASMko synaptic membranes unveiled higher amounts of SM and sphingosine (Se) and enhanced interaction of the docking molecules Munc18 and syntaxin1. In vitro reconstitution assays demonstrated that Se changes syntaxin1 conformation enhancing its interaction with Munc18. Moreover, Se reduces vesicle docking in primary neurons and increases paired-pulse facilitation when added to wt hippocampal slices. These data provide with a novel mechanism for synaptic vesicle control by sphingolipids and could explain cognitive deficits of NPA patients
Kepler-21b: A Rocky Planet Around a V = 8.25 Magnitude Star
HD 179070, aka Kepler-21, is a V = 8.25 F6IV star and the brightest exoplanet host discovered by Kepler. An early detailed analysis by Howell et al. (2012) of the first thirteen months (Q0 - Q5) of Kepler light curves revealed transits of a planetary companion, Kepler-21b, with a radius of about 1.60 ± 0.04 Râ and an orbital period of about 2.7857 days. However, they could not determine the mass of the planet from the initial radial velocity observations with Keck-HIRES, and were only able to impose a 2Ï upper limit of 10 Mâ. Here we present results from the analysis of 82 new radial velocity observations of this system obtained with HARPS-N, together with the existing 14 HIRES data points. We detect the Doppler signal of Kepler-21b with a radial velocity semi-amplitude K = 2.00 ± 0.65 m s-1, which corresponds to a planetary mass of 5.1 ± 1.7 Mâ. We also measure an improved radius for the planet of 1.639 +0.019/-0.015 Râ, in agreement with the radius reported by Howell et al. (2012). We conclude that Kepler-21b, with a density of 6.4 ± 2.1 g cm-3, belongs to the population of small, â€6 Mâ planets with iron and magnesium silicate interiors, which have lost the majority of their envelope volatiles via stellar winds or gravitational escape. The RV analysis presented in this paper serves as example of the type of analysis that will be necessary to confirm the masses of TESS small planet candidates.PostprintPeer reviewe
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