Index Catalog // ScholarsArchive@OSU

Development and Application of Tools for Genetic Analysis of Clonal Populations

Creator:: Kamvar, Zhian N.
Abstract:: Research on the population genetics of microbial organisms requires the use of specialized analyses designed for clonal organisms to avoid violating the assumptions of traditional population genetic models. The tools necessary for performing these analyses existed as a set of unrelated software with non-overlapping capabilities and did not cover all...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Zhian N. Kamvar for

Spatial and Temporal Analysis of Populations of the Sudden Oak Death Pathogen in Oregon Forests

Creator:: Kamvar, Z. N., Larsen, M. M., Kanaskie, A. M., Hansen, E. M., and Grünwald, N. J.
Abstract:: Sudden oak death caused by the oomycete Phytophthora ramorum was first discovered in California toward the end of the 20th century and subsequently emerged on tanoak forests in Oregon before its first detection in 2001 by aerial surveys. The Oregon Department of Forestry has since monitored the epidemic and sampled...
Resource Type:: Article

First Report of the EU1 Clonal Lineage of Phytophthora ramorum on Tanoak in an Oregon Forest

Creator:: Grünwald, N. J., Larsen, M. M., Kamvar, Z. N., Reeser, P. W., Kanaskie, A., Laine, J., and Wiese, R.
Abstract:: Initially reported in California as the causal agent of sudden oak death (SOD), efforts to limit spread of Phytophthora ramorum in Oregon natural forests have concentrated on quarantine regulations and eradication of the pathogen from infested areas. P. ramorum has four clonal lineages: NA1; NA2; EU1; and EU2 (Grünwald et...
Resource Type:: Article
Full Text:: ramorum on Tanoak in an Oregon Forest N. J. Grünwald , M. M. Larsen, and Z. N. Kamvar, USDA ARS

Computing entropy for Z²-actions

Creator:: Pierce, Larry A.
Abstract:: For a certain class of Z²-actions, we provide a proof of a conjecture that the ratio of the Perron eigenvalues of the transfer matrices of the free boundary restrictions converge to the entropy of that action. Also, a novel method for computing the entropy of Z²-actions is conjectured.
Resource Type:: Dissertation
Full Text:: for computing the entropy of Z 2-actions is conjectured. Computing Entropy for Z2-actions by

Assays to determine tolerance of cherry rootstock to bacterial canker caused by Pseudomonas syringae pv. syringae

Creator:: Krzesinska, Elzbieta Z.
Abstract:: Bacterial canker, caused by Pseudomonas syringae pv. syringae is recognized as one of the greatest limiting factors in cherry production in Oregon. Disease incidence may be decreased when susceptible cultivars are high-grafted onto tolerant/resistant rootstocks. This research was begun to develop a rapid screening method which could be used to...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Elzbieta Z. Krzesinska for the

Poppr: an R package for genetic analysis of populations with clonal, partially clonal, and/or sexual reproduction

Creator:: Kamvar, Zhian N., Tabima, Javier F., and Grünwald, Niklaus J.
Abstract:: Many microbial, fungal, or oomcyete populations violate assumptions for population genetic analysis because these populations are clonal, admixed, partially clonal, and/or sexual. Furthermore, few tools exist that are specifically designed for analyzing data from clonal populations, making analysis difficult and haphazard. We developed the R package poppr providing unique tools...
Resource Type:: Article
Full Text:: analysis of populations with clonal, partially clonal, and/or sexual reproduction Kamvar, Z. N., Tabima

Error control techniques for the Z-channel

Creator:: Oprisan, Paul
Abstract:: The asymmetric nature of bit errors in several practical applications provides grounds for efficient error control techniques. The Z-channel model and special classes of codes like asymmetric error detection codes and t-asymmetric error correcting/d-asymmetric error detecting codes can be successfully used in ARQ protocols for feedback error control enhancement. This...
Resource Type:: Dissertation
Full Text:: )V max (i + WCSm,n ) z (1 - q)iqk_z_i(1 (3.6) 26 Equation (3.6) gives a lower bound for P

Calculation of Z-center energy levels

Creator:: Johnson, Wilbur Vance
Resource Type:: Dissertation
Full Text:: to account for the different Z bands consist of n alkaline earth cation wIth or without associated

Chandler Loop Model for the Development of Dynamic Hemocompatibility Assays

Creator:: Hasbrook, AnneMarie V.
Abstract:: A common issue with extracorporeal medical devices is blood clotting due to bio-incompatibility. Systemic anticoagulants are often prescribed to mitigate the coagulation issues. However, such drugs can lead to further complications, for example hemorrhaging. One solution to improve the hemocompatibility of blood-contacting medical devices are biomaterials, such as slippery liquid...
Resource Type:: Honors College Thesis
Full Text:: _____________________________________________________________________ Adam Z. Higgins, Committee Member, representing Bioengineering

Active learning of constraints for semi-supervised clustering

Creator:: Xiong, Sicheng
Abstract:: Semi-supervised clustering aims to improve clustering performance by considering user supervision in the form of pairwise constraints. In this paper, we study the active learning problem of selecting pairwise must-link and cannot-link constraints for semisupervised clustering. We consider active learning in an iterative manner where in each iteration queries are...
Resource Type:: Masters Thesis
Full Text:: Constraints for Semi-Supervised Clustering Abstract approved: Xiaoli Z. Fern Semi-supervised clustering

ScholarsArchive@OSU

Development and Application of Tools for Genetic Analysis of Clonal Populations

Spatial and Temporal Analysis of Populations of the Sudden Oak Death Pathogen in Oregon Forests

First Report of the EU1 Clonal Lineage of Phytophthora ramorum on Tanoak in an Oregon Forest

Computing entropy for Z²-actions

Assays to determine tolerance of cherry rootstock to bacterial canker caused by Pseudomonas syringae pv. syringae

Poppr: an R package for genetic analysis of populations with clonal, partially clonal, and/or sexual reproduction

Error control techniques for the Z-channel

Calculation of Z-center energy levels

Chandler Loop Model for the Development of Dynamic Hemocompatibility Assays

Active learning of constraints for semi-supervised clustering

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