Use of LANDSAT data to assess waterfowl habitat quality

The author has identified the following significant results. The capability of mapping ponds over a very large area was demonstrated, with multidate, multiframe LANDSAT imagery. A small double sample of aircraft data made it possible to adjust a LANDSAT large area census. Terrain classification was improved by using multitemporal LANDSAT data. Waterfowl production was estimated, using remotely determined pond data, in conjunction with FWS estimates of breeding population. Relative waterfowl habitat quality was characterized on a section by section basis

Transcending Institutions and Borders: 21st Century Digital Scholarship at K-State

Digital scholarship of the 21st century transcends institutions and borders with its freedom from print and physical locations. This case study reviews aspects of establishing a sustainable digital scholarship center, supporting open access through the institutional repository (K-State Research Exchange - K-REx) and an open access publishing platform (New Prairie Press – NPP) along with other outreach efforts. The Center for the Advancement of Digital Scholarship (CADS) at K-State Libraries serves our campus community, but digital scholarship extends K-State\u27s impact far beyond Manhattan, Kansas. Highlighting the scholarship at our campus is only one small piece of the landscape. Collaboration on campus with both faculty and students includes working with authors, editors, and site administrators; but our roles in educating, publishing, supporting, and managing open access, including data management, publishing funds and textbook initiatives, have broader implications. This paper illustrates strategies that support all types of digital scholarship and contends that single direct connections to K-State can translate into partnerships which have regional, national, and international reach

Features of Muon Arrival Time Distributions of High Energy EAS at Large Distances From the Shower Axis

In view of the current efforts to extend the KASCADE experiment (KASCADE-Grande) for observations of Extensive Air Showers (EAS) of primary energies up to 1 EeV, the features of muon arrival time distributions and their correlations with other observable EAS quantities have been scrutinised on basis of high-energy EAS, simulated with the Monte Carlo code CORSIKA and using in general the QGSJET model as generator. Methodically various correlations of adequately defined arrival time parameters with other EAS parameters have been investigated by invoking non-parametric methods for the analysis of multivariate distributions, studying the classification and misclassification probabilities of various observable sets. It turns out that adding the arrival time information and the multiplicity of muons spanning the observed time distributions has distinct effects improving the mass discrimination. A further outcome of the studies is the feature that for the considered ranges of primary energies and of distances from the shower axis the discrimination power of global arrival time distributions referring to the arrival time of the shower core is only marginally enhanced as compared to local distributions referring to the arrival of the locally first muon.Comment: 24 pages, Journal Physics G accepte

财务治理机制—审计委员会制度研究

本论文属于应用性与实务性的审计研究。 注册会计师对公司财务报告的审计厥为审计理论与实务研究的重心，但注册会计师的审计功能能否充分发挥，核与审计环境有直接且密切的关系。独立、客观与公正固为注册会计师执行业务的基本守则，但确保注册会计师恪守独立、客观、公正的审计环境如果不存在，则社会大众对注册会计师公信力的信任与要求，必然与实际产生差距。1987年，美国不实财务报告全国委员会针对愈来愈多的上市公司财务报告不实与舞弊着手调查，其调查报告即认为财务报告不实与企业内部控制不良、管理当局意图及注册会计师的独立性息息相关；而前二者正与审计环境有关，并且制约了注册会计师的独立性。笔者认为，改善审计环境乃提升...This dissertation studies the applicable auditing theory and practices. The center of auditing theory and practical studies lies in the CPA’s financial report audit. However, the audit environment plays a close and direct role in whether the CPA may fully perform the audit process. Independence, objectiveness and justice are the basic rules of CPAs professional. If such criteria cannot be ensu...学位：管理学博士院系专业：管理学院会计系_会计学学号：B19971101

Malabsorption syndrome in broilers

Malabsorption syndrome (MAS) is a multifactorial disease that causes intestinal disorders in broilers due to infection of the gastrointestinal tract with different infectious agents. The exact aetiology is unknown, although several viruses are isolated from MAS affected chickens. None of these isolated infectious agents alone inducted the malabsorption syndrome. MAS in broilers is characterised by poor growth and lesions in the Gl-tract, mainly in the small intestine. Experimentally, MAS can be induced in one-day old broilers by oral inoculation of homogenates obtained from digestive tract tissues of MAS affected broilers. Susceptibility to the MAS syndrome differs between broiler lines. The susceptibility to MAS is correlated with the severity of the lesions, apoptosis and heterophil infiltration of the jejunum. Susceptibility to MAS is also related to the frequency of CD4 and CDS positive T-cells in the intestinal villus and the mRNA expression level of different cytokines in control and in MAS induced broilers. With the use of micro-arrays differences in gene expression levels between broiler lines that differ in MAS susceptibility were observed. From these experiments genes that are immune and food absorption related were identified. If some of these genes or the T-cell population in the gut and the other MAS susceptible related parameters could predict or prevent MAS susceptibility in broilers needs to be further investigated but can be interestingly for breeding programmes

Signals for Lorentz Violation in Post-Newtonian Gravity

The pure-gravity sector of the minimal Standard-Model Extension is studied in the limit of Riemann spacetime. A method is developed to extract the modified Einstein field equations in the limit of small metric fluctuations about the Minkowski vacuum, while allowing for the dynamics of the 20 independent coefficients for Lorentz violation. The linearized effective equations are solved to obtain the post-newtonian metric. The corresponding post-newtonian behavior of a perfect fluid is studied and applied to the gravitating many-body system. Illustrative examples of the methodology are provided using bumblebee models. The implications of the general theoretical results are studied for a variety of existing and proposed gravitational experiments, including lunar and satellite laser ranging, laboratory experiments with gravimeters and torsion pendula, measurements of the spin precession of orbiting gyroscopes, timing studies of signals from binary pulsars, and the classic tests involving the perihelion precession and the time delay of light. For each type of experiment considered, estimates of the attainable sensitivities are provided. Numerous effects of local Lorentz violation can be studied in existing or near-future experiments at sensitivities ranging from parts in 10^4 down to parts in 10^{15}.Comment: 46 pages two-column REVTeX, accepted in Physical Review

Primary Proton Spectrum of Cosmic Rays measured with Single Hadrons

The flux of cosmic-ray induced single hadrons near sea level has been measured with the large hadron calorimeter of the KASCADE experiment. The measurement corroborates former results obtained with detectors of smaller size if the enlarged veto of the 304 m^2 calorimeter surface is encounted for. The program CORSIKA/QGSJET is used to compute the cosmic-ray flux above the atmosphere. Between E_0=300 GeV and 1 PeV the primary proton spectrum can be described with a power law parametrized as dJ/dE_0=(0.15+-0.03)*E_0^{-2.78+-0.03} m^-2 s^-1 sr^-1 TeV^-1. In the TeV region the proton flux compares well with the results from recent measurements of direct experiments.Comment: 13 pages, accepted by Astrophysical Journa