751 research outputs found
Understanding the accelerator from resources-based perspective
Purpose - This study aims to explore Accelerators and their practices in sustaining start-ups within their innovative programs for these companies based on the resource-based perspective. Moreover, with an ever-increasing demand for Accelerators amongst start-up companies, this study also demonstrates the importance of Accelerators, as it pertains to new venture creation. Design/methodology/approach - This research uses an exploratory case study approach to examine a comparative view of leading Accelerator companies in the USA and Korea based on resource support. Findings - The results of this study show that there are a number of differences between Accelerators of the two countries in terms of the resources they support for early-stage start-ups. The findings also show some similarities. However, in Korea, the Accelerator landscape is limited, where mentorship, resources and investments are not readily accessible, resulting in low success rates for Korean start-up companies. These limitations have had a negative trickle-down effect when providing entrepreneurs with strong access to resources and investors, which highly affects the success rates of early-stage start-ups. Practical implications - In terms of the resource-based theory, this study contributes to the growth of early start-ups by emphasizing the role of the accelerator and suggesting the extent and impact that entrepreneurs have access to resources and investors. Originality/value - With significant growth in start-ups around the world, the necessity for start-up funding and mentorship has increased drastically. Start-up companies need various types of assets, systems, knowledge and information to achieve their goals. In Accelerators, start-ups receive all the aforementioned resources while also improving their entrepreneurial skills. Start-up companies have many options in seeking investors who support both tangible and intangible resources to boost growth. While there is a wealth of information on traditional funding methods, there are few studies that shed light on the role of Accelerators from the resource-based point of view
Configuration for Micro pH Sensor
A fully integrated pH sensor with a built-in reference electrode is proposed. An iridium oxide microelectrode and a pH-insensitive field-effect transistor are used as a pH sensor and a reference electrode, respectively. The sensitivity of the proposed device matches well with the estimated value to within 0.3 mV/pH deviation
Distance and Reddening of the Isolated Dwarf Irregular Galaxy NGC 1156
We present a photometric estimation of the distance and reddening values to
the dwarf irregular galaxy NGC 1156, which is one of the best targets to study
the isolated dwarf galaxies in the nearby universe. We have used the imaging
data sets of the Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS)
High Resolution Channel (HRC) of the central region of NGC 1156 (26" X 29")
available in the HST archive for this study. From the (U-B, B-V) color-color
diagram, we first estimate the total (foreground + internal) reddening toward
NGC 1156 of E(B-V) =0.35 +/- 0.05 mag, whereas only the foreground reddening
was previously known to be E(B-V)=0.16 mag (Burstein & Heiles) or 0.24 mag
(Schlegel, Finkbeiner, & Davis). Based on the brightest stars method, selecting
the three brightest blue supergiant (BSG) stars with mean B magnitude of
= 21.94 mag and the three brightest red supergiant (RSG) stars with
mean V magnitude of = 22.76 mag, we derive the distance modulus to NGC
1156 to be (m-M)_{0,BSG} = 29.55 mag and (m-M)_{0,RSG} = 29.16 mag. By using
weights of 1 and 1.5 for the distance moduli from using the BSGs and the RSGs,
respectively, we finally obtain the weighted mean distance modulus to NGC 1156
(m-M)_0 = 29.39 +/- 0.20 mag (d = 7.6 +/- 0.7 Mpc), which is in very good
agreement with the previous estimates. Combining the photometry data of this
study with those of Karachentsev et al. gives smaller distance to NGC 1156,
which is discussed together with the limits of the data.Comment: 18 pages, 8 figures, Accepted by PASJ (2012 Apr issue
In Antimyosin Monoclonal Antibody in the Detection of Doxorubicin Cardiotoxicity: a Comparison with Histology and 99mTc Pyrophosphate
Recently, lllIn-antimyosin monoclonal antibidies (IllIn-AMAb) have
been introduced for the diagnosis of myocardial infarction. The purpose of this
study was to investigate the feasibility of using this agent for the early detection
of cardiac damage induced by doxorubicin. The degree of drug induced change in
the myocardium was evaluated histologically. 99mTc pyrophosphate (99mTc-PYP),
known to preferentially accumulate in Adriamycin caused lesions, was used as a
control radiopharmaceutical. Myocardial uptake of 111In-AMAb and 99mTc-PYP
was measured in 12 controls and 10 Adriamycin treated rabbits. The results
indicated the following: 1) 111In-AMAb uptake in the heart correlated well with
the degree of pathology (r=O.95); 2) 99mTc-PYP uptake was also correlated with
cardiac damage (r=O.77); 3) The uptake ratio (expressed as percent injected dose
per gram myocardial tissue) of Adriamycin treated animals vs. controls was 2.7: 1
for 111In-AMAb and 9.2 for 99mTc-PYP nt 24 and 2 hours after intravenous
injection, respectively; 4) considerable non-specific 99mTc_PYP accumulation was
measured in the lungs and kidneys and was significantly higher in drug treated
animals compared to controls. 111In-AMAb accumulation remained unchanged in
these organs. We conclude that 111In-AMAb accurately detects cardiac toxicity
induced by Adriamycin but that 99mTc_PYP still remains an acceptable agent in
part because, of its availability and higher tracer concentration in the cardiac
lesions
Lotus leaf-inspired CVD grown graphene for a water repellant flexible transparent electrode
By simply heating commercial copper foil under an oxygen atmosphere and subsequently annealing CuO under a hydrogen atmosphere, the 3D Cu structures in the form of double hierarchical bumps are generated. The contact angle of a lotus leaf-inspired graphene grown on the reconstructed 3D Cu structures is 154.2 degrees.close2
The Globular Cluster System of M60 (NGC 4649). I. CFHT MOS Spectroscopy and Database
We present the measurement of radial velocities for globular clusters in M60,
giant elliptical galaxy in the Virgo cluster. Target globular cluster
candidates were selected using the Washington photometry based on the deep
16\arcmin \times 16\arcmin images taken at the KPNO 4m and using the
photometry derived from the HST/WFPC2 archive images. The spectra of the target
objects were obtained using the Multi-Object Spectrograph (MOS) at the
Canada-France-Hawaii Telescope (CFHT). We have measured the radial velocity for
111 objects in the field of M60: 93 globular clusters (72 blue globular
clusters with and 21 red globular clusters with
), 11 foreground stars, 6 small galaxies, and the nucleus of
M60. The measured velocities of the 93 globular clusters range from
km s to km s, with a mean value of
km s, which is in good agreement with the velocity of the nucleus of M60
( km s). Combining our results with data in the
literature, we present a master catalog of radial velocities for 121 globular
clusters in M60. The velocity dispersion of the globular clusters in the master
catalog is found to be km s for the entire sample,
km s for 83 blue globular clusters, and
km s for 38 red globular clusters.Comment: 29 pages, 8 figures. To appear in Ap
- …