3,853 research outputs found
From Student to Scholar: Publishing Your Thesis and Dissertation
Publishing your academic work is easier when you start with an understanding of how to write for publication. Join faculty from the NSU Department of Communication, Media, and the Arts to learn about how to approach writing your thesis or dissertation in the way most likely to lead to publication
A Mock Data and Science Challenge for Detecting an Astrophysical Stochastic Gravitational-Wave Background with Advanced LIGO and Advanced Virgo
The purpose of this mock data and science challenge is to prepare the data
analysis and science interpretation for the second generation of
gravitational-wave experiments Advanced LIGO-Virgo in the search for a
stochastic gravitational-wave background signal of astrophysical origin. Here
we present a series of signal and data challenges, with increasing complexity,
whose aim is to test the ability of current data analysis pipelines at
detecting an astrophysically produced gravitational-wave background, test
parameter estimation methods and interpret the results. We introduce the
production of these mock data sets that includes a realistic observing scenario
data set where we account for different sensitivities of the advanced detectors
as they are continuously upgraded toward their design sensitivity. After
analysing these with the standard isotropic cross-correlation pipeline we find
that we are able to recover the injected gravitational-wave background energy
density to within for all of the data sets and present the results
from the parameter estimation. The results from this mock data and science
challenge show that advanced LIGO and Virgo will be ready and able to make a
detection of an astrophysical gravitational-wave background within a few years
of operations of the advanced detectors, given a high enough rate of compact
binary coalescing events
Inbred Strain-Specific Effects of Exercise in Wild Type and Biglycan Deficient Mice
Biglycan (bgn)-deficient mice (KO) have defective osteoblasts which lead to changes in the amount and quality of bone. Altered tissue strength in C57BL6/129 (B6;129) KO mice, a property which is independent of tissue quantity, suggests that deficiencies in tissue quality are responsible. However, the response to bgn-deficiency is inbred strain-specific. Mechanical loading influences bone matrix quality in addition to any increase in bone mass or change in bone formation activity. Since many diseases influence the mechanical integrity of bone through altered tissue quality, loading may be a way to prevent and treat extracellular matrix deficiencies. C3H/He (C3H) mice consistently have a less vigorous response to mechanical loading vs. other inbred strains. It was therefore hypothesized that the bones from both wild type (WT) and KO B6;129 mice would be more responsive to exercise than the bones from C3H mice. To test these hypotheses at 11 weeks of age, following 21 consecutive days of exercise, we investigated cross-sectional geometry, mechanical properties, and tissue composition in the tibiae of male mice bred on B6;129 and C3H backgrounds. This study demonstrated inbred strain-specific compositional and mechanical changes following exercise in WT and KO mice, and showed evidence of genotype-specific changes in bone in response to loading in a gene disruption model. This study further shows that exercise can influence bone tissue composition and/or mechanical integrity without changes in bone geometry. Together, these data suggest that exercise may represent a possible means to alter tissue quality and mechanical deficiencies caused by many diseases of bone
Muon spin rotation measurements of the superfluid density in fresh and aged superconducting PuCoGa
We have measured the temperature dependence and magnitude of the superfluid
density via the magnetic field penetration depth
in PuCoGa (nominal critical temperature K) using the muon
spin rotation technique in order to investigate the symmetry of the order
parameter, and to study the effects of aging on the superconducting properties
of a radioactive material. The same single crystals were measured after 25 days
( K) and 400 days ( K) of aging at room temperature.
The temperature dependence of the superfluid density is well described in both
materials by a model using d-wave gap symmetry. The magnitude of the muon spin
relaxation rate in the aged sample, , where is the effective mass, is reduced by
about 70% compared to fresh sample. This indicates that the scattering from
self-irradiation induced defects is not in the limit of the conventional
Abrikosov-Gor'kov pair-breaking theory, but rather in the limit of short
coherence length (about 2 nm in PuCoGa) superconductivity.Comment: 11 page
Corn, 1984
Harry C. Minor is an Associate Professor of Agronomy and State Extension Specialist; Carl G. Morris is a Senior Research Specialist; and Delbert Knerr, Eric Lawman, and Virgil Sparks are Research Specialists.Includes experimental procedures, cultural practices, rainfall and temperature, charts, maps and tables and seed corn company addresses.Experimental procedures -- Cultural practices -- Rainfall and temperature -- Summary of results -- Irrigation charts -- Northern locations -- Central locations -- Southeast locations -- Irrigated locations -- Summary of entries and 1984 test locations -- Seed corn company addresses
Corn, 1982
Harry C. Minor is an Associate Professor of Agronomy and State Extension Specialist; Carl G. Morris is a Senior Research Specialist; and Delbert Knerr, Eric Lawman, and Virgil Sparks are Research Specialists.Compares hybrids and includes experimental procedures, cultural practices, rainfall and temperature, charts, maps and tables and seed corn company addresses.Comparing hybrids -- Experimental procedures -- Cultural practices -- Rainfall and temperature -- Summary of results -- Irrigation charts -- Northern locations -- Central locations -- Southeast locations -- Irrigated locations -- Summary of entries and 1982 test locations -- Seed corn company addresses
- …