2,563 research outputs found
Effects of lender decisions on farm financial planning : some solutions to problems arising from credit limitations set by commercial lenders
Bibliography: p. 20
Development of Newly Built Chirped-pulsed Fourier Transform Microwave (CP-FTMW) Spectrometer for Studying Biomolecules in the Gas Phase
Recent advances in the technology of oscilloscopes and digital waveform generators have made it possible to shorten collection times, increase scan bandwidths and improve the overall sensitivity of microwave spectroscopy. Thus, microwave spectroscopy has become a powerful tool for the determination of the structures of molecules. The Pate group, at the University of Virginia, has developed a new technique called chirped-pulse Fourier transform microwave (CP-FTMW) spectroscopy that has the ability to measure the broadband pure rotational spectra of large molecules. Working in collaboration with the Pate group, we have developed, at the University of Pittsburgh, a small version of the UVa spectrometer. This version of the CP-FTMW spectrometer uses a narrower bandwidth pulse, ~500 MHz, which makes it possible to record a spectrum using lower power amplifiers at significantly reduced cost. Using this new spectrometer the pure rotational spectra of N,N΄-dimethylaniline, 4,4'-dimethylaminobenzonitrile, o-toluidine, m-toluidine, 4-fluorobenzyl alcohol, valeric acid, and δ-valerolactam were collected and studied. From these spectra, their three-dimensional structure, bonding properties, and intermolecular interactions were determined
Competing Quantum Orderings in Cuprate Superconductors: A Minimal Model
We present a minimal model for cuprate superconductors. At the unrestricted
mean-field level, the model produces homogeneous superconductivity at large
doping, striped superconductivity in the underdoped regime and various
antiferromagnetic phases at low doping and for high temperatures. On the
underdoped side, the superconductor is intrinsically inhomogeneous and global
phase coherence is achieved through Josephson-like coupling of the
superconducting stripes. The model is applied to calculate experimentally
measurable ARPES spectra.Comment: 5 pages, 4 eps included figure
Financial services misconduct and the corporations act 2001
This working paper is the second published output of an eighteen-month (December 2014 – June 2016) research project conducted by staff at the Melbourne Law School that examines enforcement and penalties regimes under legislation administered by the Australian Securities and Investments Commission (ASIC).
The paper follows Working Paper 1’s scoping of penalties under ASIC administered legislation by discussing enforcement under the Corporations Act2 through the lens of a study of court-based enforcement by ASIC of financial services misconduct. The paper is in three parts. Part I considers current debates about penalties regimes available to ASIC. Part II discusses the provisions and penalties presently operating under the Corporations Act for financial services misconduct. Part III examines the actual penalties handed down for corporate wrongdoing for financial services misconduct in Australian Courts by way of a small case study of ASIC court based enforcement cases from 2011-2013. Part IV concludes
Practical Broad-Band Tuning of Dye Lasers by Solvent Shifting
We have operated a dye laser over a broad wavelength range (593.8-667.0nm) by shifting the dye emission profile with incremental changes of solvent composition. This was accomplished with the laser operating continuously, and only minor adjustment of the laser optics was required. Solvent tuning was facilitated by the critical dependence of the optimum laser wavelength on concentration of the second solvent. Using the known solvent-sensitive laser dye 9-diethylaminobenzo[a]phenoxaz-5-one (DBP), 87% of the tuning range from pure xylenes to pure methanol was covered by cumulative addition of 24 vol. % methanol to the starting xylenes solution. The optimum dye concentration was found to be independent of solvent composition, so that maximum laser power could be maintained by mixing equimolar dye solutions in the two solvents. These results establish the practicality of solvent-tuning as a method of conducting laser experiments over a broad wavelength range
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Supplemental peri-operative intravenous crystalloids for postoperative nausea and vomiting: an abridged Cochrane systematic review.
We conducted a Cochrane systematic review on the effectiveness of supplemental intravenous crystalloid administration in preventing postoperative nausea and vomiting. We included randomised controlled trials of patients undergoing surgery under general anaesthesia and given supplemental peri-operative intravenous crystalloid. Our primary outcomes were the risk of postoperative nausea and the risk of postoperative vomiting. We assessed the risk of bias for each included study and applied the Grading of Recommendations, Assessment, Development and Evaluations (GRADE) framework for the certainty of evidence. We included 41 studies. We found that the intervention probably reduces the overall risk of postoperative nausea, the risk ratio (95%CI) being 0.62 (0.51-0.75) (I2 = 57%, p < 0.00001, 18 studies; 1766 participants; moderate-certainty evidence). It also probably reduces the risk of postoperative nausea within 6 h of surgery, with a risk ratio (95%CI) of 0.67 (0.58 to 0.78) (I2 = 9%, p < 0.00001, 20 studies; 2310 participants; moderate-certainty evidence) and by around 24 h, the risk ratio (95%CI) being 0.47 (0.32-0.69) (I2 = 38%, p = 0.0001, 17 studies; 1682 participants; moderate-certainty evidence). Supplemental intravenous crystalloid probably also reduces the overall risk of postoperative vomiting, with a risk ratio (95%CI) of 0.50 (0.40-0.63) (I2 = 31%, p < 0.00001, 20 studies; 1970 participants; moderate-certainty evidence). The beneficial effect on vomiting was seen both within 6 h and by around 24 h postoperatively
Soil properties under different orchard floor management systems for organic apple production
Orchard floor management impacts soil conditions and thus tree performance. This research was initiated to investigate the effects of alternative orchard floor management systems compatible with organic production on soil parameters using the“Pacific Gala” apple cultivar (Malus × domestica Borkh.) on three rootstocks of varying vigor. Alfalfa hay mulch, propane flame burner, and Swiss sandwich system(combination of resident vegetation and tilled strips)were compared from 2001 to 2005. These treatments were applied to tree rows which provided different vegetation-free areas. Contrasting additions of organic matter were evaluated for their effect on soil organic matter (SOM), C content, nitrate and ammonium availability, moisture, and soil food web through nematode
populations. Laboratory incubations to determine C and N mineralization potentials were performed. During this time period, SOM increased under the mulched soil and slightly less under the Swiss sandwich system (SSS) but in this last case without external inputs. Carbon and N pools were not impacted by flame burning (FL) but were enhanced by alfalfa hay mulch (MU) and to a lesser extent by SSS. Nitrate-N content in soil under MU increased between five and ten times compared to SSS and FL. Total number of nematodes was
higher for SSS and MU compared with FL treatment; however, SSS had the most structured soil food web, an important sustainability trait, while MU had the leas
The deep look onto the hard X-ray sky: The Swift - INTEGRAL X-ray (SIX) survey
The super-massive black-holes in the centers of Active Galactic Nuclei (AGNs)
are surrounded by obscuring matter that can block the nuclear radiation.
Depending on the amount of blocked radiation, the flux from the AGN can be too
faint to be detected by currently flying hard X-ray (above 15 keV) missions. At
these energies only ~1% of the intensity of the Cosmic X-ray Background (CXB)
can be resolved into point-like sources that are AGNs. In this work we address
the question of the undetected sources contributing to the CXB with a very
sensitive and new hard X-ray survey: the SIX survey that is obtained with the
new approach of combining the Swift/BAT and INTEGRAL/IBIS X-ray observations.
We merge the observations of both missions. This enhances the exposure time and
reduces systematic uncertainties. As a result we obtain a new survey over a
wide sky area of 6200 deg^2 that is more sensitive than the surveys of
Swift/BAT or INTEGRAL/IBIS alone. Our sample comprises 113 sources: 86 AGNs
(Seyfert-like and blazars), 5 galaxies, 2 clusters of galaxies, 3 Galactic
sources, 3 previously detected unidentified X-ray sources, and 14 unidentified
sources. The scientific outcome from the study of the sample has been properly
addressed to study the evolution of AGNs at redshift below 0.4. We do not find
any evolution using the 1/V_max method. Our sample of faint sources are
suitable targets for the new generation hard X-ray telescopes with focusing
techniques.Comment: ApJS accepte
Life history, natural enemies, and management of Disholcaspis quercusvirens (Hymenoptera:Cynipidae) on live oak trees
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