Index Catalog // ScholarsArchive@OSU

Using Community Gardens To Help Solve the Hunger Crisis in San Diego County, CA

Creator:: Dusek, Daniel
Abstract:: The World Health Organization defines food security as “all people at all times have access to sufficient, safe, nutritious food to maintain a healthy and active life.” The reality is that one in six Americans are not food secure, even though the US produces enough food to feed its national...
Resource Type:: Capstone Project
Full Text:: Microsoft Word - DusekDanielP2016.docx Daniel

Clostridium difficile Spore-Macrophage Interactions: Spore Survival

Creator:: Paredes-Sabja, Daniel, Cofre-Araneda, Glenda, Brito-Silva, Christian, Pizarro-Guajardo, Marjorie, and Sarker, Mahfuzur R.
Abstract:: Background: Clostridium difficile is the main cause of nosocomial infections including antibiotic associated diarrhea, pseudomembranous colitis and toxic megacolon. During the course of Clostridium difficile infections (CDI), C. difficile undergoes sporulation and releases spores to the colonic environment. The elevated relapse rates of CDI suggest that C. difficile spores has...
Resource Type:: Article
Full Text:: Interactions: Spore Survival Daniel Paredes-Sabja1,2*, Glenda Cofre-Araneda1, Christian Brito-Silva1, Marjorie

Estimating the absolute wealth of households

Creator:: Hruschka, Daniel J., Gerkey, Drew, and Hadley, Craig
Abstract:: The estimation of the economic status of individuals and their households is central to much work in epidemiology and the social sciences. Wealth is a key determinant of health and social achievement and an indicator of well-being in its own right. For this reason, the development and testing of novel...
Resource Type:: Article
Full Text:: .14.147082 Research 483 Estimating the absolute wealth of households Daniel J Hruschka,a Drew Gerkeyb

Analysis and Expansion of the Role of the Escherichia coli Protein ProQ

Creator:: Sheidy, Daniel T. and Zielke, Ryszard A.
Abstract:: The decrease in proline transport by the proline porter ProP in a Delta proQ strain has been well documented; however, the reason for this phenotype remains undefined. Previous studies have speculated that ProQ facilitates translation of proP mRNA. Here, we demonstrate that ProQ is enriched in the polysome fractions of...
Resource Type:: Article
Full Text:: Protein ProQ Daniel T. Sheidy1*, Ryszard A. Zielke2 1 Department of Molecular, Cellular, and

Interaction-induced conducting–non-conducting transition of ultra-cold atoms in one-dimensional optical lattices

Creator:: Chien, Chih-Chun, Gruss, Daniel, Di Ventra, Massimiliano, and Zwolak, Michael
Abstract:: The study of time-dependent, many-body transport phenomena is increasingly within reach of ultra-cold atom experiments. We show that the introduction of spatially inhomogeneous interactions, e.g., generated by optically controlled collisions, induce negative differential conductance in the transport of atoms in one-dimensional optical lattices. Specifically, we simulate the dynamics of interacting...
Resource Type:: Article
Full Text:: of ultra-cold atoms in one-dimensional optical lattices Chih-Chun Chien1,4, Daniel Gruss2

High-Density SNP Genotyping of Tomato (Solanum lycopersicum L.) Reveals Patterns of Genetic Variation Due to Breeding

Creator:: Sim, Sung-Chur, Van Deynze, Allen, Stoffel, Kevin, Douches, David S., Zarka, Daniel, Ganal, Martin W., Chetelat, Roger T., Hutton, Samuel F., Scott, John W., Gardner, Randolph G., Panthee, Dilip R., Mutschler, Martha, Myers, James R., and Francis, David M.
Abstract:: The effects of selection on genome variation were investigated and visualized in tomato using a high-density single nucleotide polymorphism (SNP) array. 7,720 SNPs were genotyped on a collection of 426 tomato accessions (410 inbreds and 16 hybrids) and over 97% of the markers were polymorphic in the entire collection. Principal...
Resource Type:: Article
Full Text:: Deynze2, Kevin Stoffel2, David S. Douches3, Daniel Zarka3, Martin W. Ganal4, Roger T. Chetelat5, Samuel F

Estimating heterotrophic respiration at large scales: challenges, approaches, and next steps

Creator:: Bond-Lamberty, Ben, Epron, Daniel, Harden, Jennifer, Harmon, Mark E., Hoffman, Forrest, Kumar, Jitendra, David McGuire, Anthony, and Vargas, Rodrigo
Abstract:: Heterotrophic respiration (HR), the aerobic and anaerobic processes mineralizing organic matter, is a key carbon flux but one impossible to measure at scales significantly larger than small experimental plots. This impedes our ability to understand carbon and nutrient cycles, benchmark models, or reliably upscale point measurements. Given that a new...
Resource Type:: Article
Full Text:: -Lamberty,1,† Daniel Epron,2 Jennifer Harden,3 Mark E. Harmon,4 Forrest Hoffman,5 Jitendra Kumar,5 Anthony

Predicting foundation bunchgrass species abundances: model-assisted decision-making in protected-area sagebrush steppe

Creator:: Rodhouse, Thomas J., Irvine, Kathryn M., Sheley, Roger L., Smith, Brenda S., Hoh, Shirley, Esposito, Daniel M., and Mata-Gonzalez, Ricardo
Abstract:: Foundation species are structurally dominant members of ecological communities that can stabilize ecological processes and influence resilience to disturbance and resistance to invasion. Being common, they are often overlooked for conservation but are increasingly threatened from land use change, biological invasions, and over‐exploitation. The pattern of foundation species abundances over...
Resource Type:: Article
Full Text:: ., Sheley, R. L., Smith, B. S., Hoh, S., Esposito, D. M., & Mata-Gonzalez, R. (2014). Predicting foundation

Biotic and Human Vulnerability to Projected Changes in Ocean Biogeochemistry over the 21st Century

Creator:: Mora, Camilo, Wei, Chih-Lin, Rollo, Audrey, Amaro, Teresa, Baco, Amy R., Billett, David, Bopp, Laurent, Chen, Qi, Collier, Mark, Danovaro, Roberto, Gooday, Andrew J., Grupe, Benjamin M., Halloran, Paul R., Ingels, Jeroen, Jones, Daniel O. B., Levin, Lisa A., Nakano, Hideyuki, Norling, Karl, Ramirez-Llodra, Eva, Rex, Michael, Ruhl, Henry A., Smith, Craig R., Sweetman, Andrew K., Thurber, Andrew R., Tjiputra, Jerry F., Usseglio, Paolo, Watling, Les, Wu, Tongwen, and Yasuhara, Moriaki
Abstract:: Ongoing greenhouse gas emissions can modify climate processes and induce shifts in ocean temperature, pH, oxygen concentration, and productivity, which in turn could alter biological and social systems. Here, we provide a synoptic global assessment of the simultaneous changes in future ocean biogeochemical variables over marine biota and their broader...
Resource Type:: Article

The WAIS Divide deep ice core WD2014 chronology - Part 2: Annual-layer counting (0-31 ka BP)

Creator:: Sigl, Michael, Fudge, Tyler J., Winstrup, Mai, Cole-Dai, Jihong, Ferris, David, McConnell, Joseph R., Taylor, Ken C., Welten, Kees C., Woodruff, Thomas E., Adolphi, Florian, Bisiaux, Marion, Brook, Edward J., Buizert, Christo, Caffee, Marc W., Dunbar, Nelia W., Edwards, Ross, Geng, Lei, Iverson, Nels, Koffman, Bess, Layman, Lawrence, Maselli, Olivia J., McGwire, Kenneth, Muscheler, Raimund, Nishiizumi, Kunihiko, Pasteris, Daniel R., Rhodes, Rachael H., and Sowers, Todd A
Abstract:: We present the WD2014 chronology for the upper part (0–2850 m; 31.2 ka BP) of the West Antarctic Ice Sheet (WAIS) Divide (WD) ice core. The chronology is based on counting of annual layers observed in the chemical, dust and electrical conductivity records. These layers are caused by seasonal changes...
Resource Type:: Article

Footprint of Positive Selection in Treponema pallidum subsp. pallidum Genome Sequences Suggests Adaptive Microevolution of the Syphilis Pathogen

Creator:: Giacani, Lorenzo, Chattopadhyay, Sujay, Centurion-Lara, Arturo, Jeffrey, BrendanM., Le, Hoavan T., Molini, Barbara J., Lukehart, Sheila A., Sokurenko, Evgeni V., and Rockey, Daniel D.
Abstract:: In the rabbit model of syphilis, infection phenotypes associated with the Nichols and Chicago strains of Treponema pallidum (T. pallidum), though similar, are not identical. Between these strains, significant differences are found in expression of, and antibody responses to some candidate virulence factors, suggesting the existence of functional genetic differences...
Resource Type:: Article
Full Text:: . Molini1, Sheila A. Lukehart1,4, Evgeni V. Sokurenko2, Daniel D. Rockey3 1 Department of Medicine

Genetic and Functional Diversification of Small RNA Pathways in Plants

Creator:: Xie, Zhixin, Johansen, Lisa K., Gustafan, Adam M., Kasschau, Kristin D., Lellis, Andrew D., Zilberman, Daniel, Jacobsen, Steven E., and Carrington, James C.
Abstract:: Multicellular eukaryotes produce small RNA molecules (approximately 21–24 nucleotides) of two general types, microRNA (miRNA) and short interfering RNA (siRNA). They collectively function as sequence-specific guides to silence or regulate genes, transposons, and viruses and to modify chromatin and genome structure. Formation or activity of small RNAs requires factors belonging...
Resource Type:: Article
Full Text:: . Kasschau 1 , Andrew D. Lellis 1 , Daniel Zilberman 2 , Steven E. Jacobsen 2,3 , James C. Carrington 1

Catalyst selective and regiodivergent O- to C- or N-carboxyl transfer of pyrazolyl carbonates: synthetic and computational studies

Creator:: Gould, Eoin, Walden, Daniel M., Kasten, Kevin, Johnston, Ryne C., Wu, Jiufeng, Slawin, Alexandra M., Mustard, Thomas J. L., Johnston, Brittany, Davies, Tony, Cheong, Paul Ha-Yeon, and Smith, Andrew D.
Abstract:: The regiodivergent O- to C- or N-carboxyl transfer of pyrazolyl carbonates is described, with DMAP giving preferential N-carboxylation and triazolinylidenes promoting selective C-carboxylation (both with up to >99 : 1 regioselectivity). An enantioselective O- to C-carboxyl variant using NHC catalysis is demonstrated (up to 92% ee), while mechanistic and DFT studies outline...
Resource Type:: Article
Full Text:: and computational studies Gould, E., Walden, D. M., Kasten, K., Johnston, R. C., Wu, J., Slawin, A. M

The Genome of Tolypocladium inflatum: Evolution, Organization, and Expression of the Cyclosporin Biosynthetic Gene Cluster

Creator:: Bushley, Kathryn E., Raja, Rajani, Jaiswal, Pankaj, Cumbie, Jason S., Nonogaki, Mariko, Boyd, Alexander E., Owensby, C. Alisha, Knaus, Brian J., Elser, Justin, Miller, Daniel, Di, Yanming, McPhail, Kerry L., and Spatafora, Joseph W.
Abstract:: The ascomycete fungus Tolypocladium inflatum, a pathogen of beetle larvae, is best known as the producer of the immunosuppressant drug cyclosporin. The draft genome of T. inflatum strain NRRL 8044 (ATCC 34921), the isolate from which cyclosporin was first isolated, is presented along with comparative analyses of the biosynthesis of...
Resource Type:: Article
Full Text:: Owensby1, Brian J. Knaus1, Justin Elser1, Daniel Miller1, Yanming Di4, Kerry L. McPhail2, Joseph W

Complete genome sequence of Nitrosomonas sp. Is79, an ammonia oxidizing bacterium adapted to low ammonium concentrations

Creator:: Bollmann, Annette, Sedlacek, Christopher J., Norton, Jeanette, Laanbroek, Hendrikus J., Suwa, Yuichi, Stein, Lisa Y., Klotz, Martin G., Arp, Daniel J., Sayavedra-Soto, Luis, Lu, Megan, Bruce, David, Detter, Chris, Tapia, Roxanne, Han, James, Woyke, Tanja, Pitluck, Sam, Pennacchio, Len, Nolan, Matt, Land, Miriam L., Huntemann, Marcel, Deshpande, Shweta, Han, Cliff, Chen, Amy, Kyrpides, Nikos, Movromatis, Konstantinos, Markowitz, Victor, Szeto, Ernest, Ivonova, Natalia, Mikhailova, Natalia, Pagani, Ioanna, Pati, Amrita, Peters, Lin, Ovchinnikova, Galina, Goodwin, Lynne A., and Lucas, Susan M.
Abstract:: Nitrosomonas sp. Is79 is a chemolithoautotrophic ammonia-oxidizing bacterium that belongs to the family Nitrosomonadaceae within the phylum Proteobacteria. Ammonia oxidation is the first step of nitrification, an important process in the global nitrogen cycle ultimately resulting in the production of nitrate. Nitrosomonas sp. Is79 is an ammonia oxidizer of high...
Resource Type:: Article
Full Text:: , Lisa Y. Stein5, Martin G. Klotz6, Daniel Arp7, Luis Sayavedra-Soto7, Megan Lu8, David Bruce8, Chris

Catching the Right Wave: Evaluating Wave Energy Resources and Potential Compatibility with Existing Marine and Coastal Uses

Creator:: Kim, Choong-Ki, Toft, Jodie E., Papenfus, Michael, Verutes, Gregory, Guerry, Anne D., Ruckelshaus, Marry H., Arkema, Katie K., Guannel, Gregory, Wood, Spencer A., Bernhardt, Joanna R., Tallis, Heather, Plummer, Mark L., Halpern, Benjamin S., Pinsky, Malin L., Beck, Michael W., Chan, Francis, Chan, Kai M. A., Levin, Phil S., and Polasky, Stephen
Abstract:: Many hope that ocean waves will be a source for clean, safe, reliable and affordable energy, yet wave energy conversion facilities may affect marine ecosystems through a variety of mechanisms, including competition with other human uses. We developed a decision-support tool to assist siting wave energy facilities, which allows the...
Resource Type:: Article
Full Text:: . Arkema1, Gregory Guannel1, Spencer A. Wood1, Joanna R. Bernhardt1,4, Heather Tallis1, Mark L. Plummer5

Comparison of fixatives and fixation time for PCR detection of Mycobacterium in zebrafish Danio rerio

Creator:: Peterson, Tracy S., Kent, Michael L., Ferguson, Jayde A., Watral, Virginia G., and Whipps, Christopher M.
Abstract:: Mycobacteriosis is a common disease of laboratory zebrafish Danio rerio. Different infection patterns occur in zebrafish depending on mycobacterial species. Mycobacterium marinum and M. haemophilum produce virulent infections associated with high mortality, whereas M. chelonae is more widespread and is not associated with high mortality. Identification of mycobacterial infections to...
Resource Type:: Article
Full Text:: statistical analyses were conducted with R ver- sion 2.7.2 (R Development Core Team). Significance was set at

Isotopic constraints on the pre-industrial oceanic nitrogen budget

Creator:: Somes, C. J., Oschlies, A., and Schmittner, A.
Abstract:: The size of the bioavailable (i.e., “fixed”) nitrogen inventory in the ocean influences global marine productivity and the biological carbon pump. Despite its importance, the pre-industrial rates for the major source and sink terms of the oceanic fixed nitrogen budget, N₂ fixation and denitrification, respectively, are not well known. These...
Resource Type:: Article
Full Text:: Seafloor R NSTD NRMSE Sinking Seafloor Seafloor R NSTD NRMSE (µM NO−3 ) (‰) PON full data- PON full data

Amplification and dampening of soil respiration by changes in temperature variability

Creator:: Sierra, C. A., Harmon, M. E., Thomann, E., Perakis, S. S., and Loescher, H. W.
Abstract:: Accelerated release of carbon from soils is one of the most important feedbacks related to anthropogenically induced climate change. Studies addressing the mechanisms for soil carbon release through organic matter decomposition have focused on the effect of changes in the average temperature, with little attention to changes in temperature variability....
Resource Type:: Article
Full Text:: Grosso et al.(2005). Equation Second derivative Range of convexity onT Comments R= aebT ab2ebT −∞

Mapping Migratory Bird Prevalence Using Remote Sensing Data Fusion

Creator:: Swatantran, Anu, Dubayah, Ralph, Goetz, Scott, Hofton, Michelle, Betts, Matthew G., Sun, Mindy, Simard, Marc, and Holmes, Richard
Abstract:: Background: Improved maps of species distributions are important for effective management of wildlife under increasing anthropogenic pressures. Recent advances in lidar and radar remote sensing have shown considerable potential for mapping forest structure and habitat characteristics across landscapes. However, their relative efficacies and integrated use in habitat mapping remain largely...
Resource Type:: Article
Full Text:: facilitating fine-scale studies at both stand and landscape level. Citation: Swatantran A, Dubayah R, Goetz S

Mutualistic Co-evolution of Type III Effector Genes in Sinorhizobium fredii and Bradyrhizobium japonicum

Creator:: Kimbrel, Jeffrey A., Thomas, William J., Jiang, Yuan, Creason, Allison L., Thireault, Caitlin A., Sachs, Joel L., and Chang, Jeff H.
Abstract:: Two diametric paradigms have been proposed to model the molecular co-evolution of microbial mutualists and their eukaryotic hosts. In one, mutualist and host exhibit an antagonistic arms race and each partner evolves rapidly to maximize their own fitness from the interaction at potential expense of the other. In the opposing...
Resource Type:: Article
Full Text:: defense is effector-triggered immunity (ETI) in which resistance (R) proteins surveil for corresponding

Does wildfire likelihood increase following insect outbreaks in conifer forests?

Creator:: Meigs, Garrett W., Campbell, John L., Zald, Harold S. J., Bailey, John D., Shaw, David C., and Kennedy, Robert E.
Abstract:: Although there is acute concern that insect-caused tree mortality increases the likelihood or severity of subsequent wildfire, previous studies have been mixed, with findings typically based on stand-scale simulations or individual events. This study investigates landscape- and regional-scale wildfire likelihood following outbreaks of the two most prevalent native insect pests...
Resource Type:: Article
Full Text:: ., & Kennedy, R. E. (2015). Does wildfire likelihood increase following insect outbreaks in conifer forests

Does wildfire likelihood increase following insect outbreaks in conifer forests?

Creator:: Meigs, Garrett W., Campbell, John L., Zald, Harold S. J., Bailey, John D., Shaw, David C., and Kennedy, Robert E.
Abstract:: Although there is acute concern that insect‐caused tree mortality increases the likelihood or severity of subsequent wildfire, previous studies have been mixed, with findings typically based on stand‐scale simulations or individual events. This study investigates landscape‐ and regional‐scale wildfire likelihood following outbreaks of the two most prevalent native insect pests...
Resource Type:: Article
Full Text:: ., & Kennedy, R. E. (2015). Does wildfire likelihood increase following insect outbreaks in conifer forests

Does wildfire likelihood increase following insect outbreaks in conifer forests?

Creator:: Meigs, Garrett W., Campbell, John L., Zald, Harold S. J., Bailey, John D., Shaw, David C., and Kennedy, Robert E.
Abstract:: Although there is acute concern that insect‐caused tree mortality increases the likelihood or severity of subsequent wildfire, previous studies have been mixed, with findings typically based on stand‐scale simulations or individual events. This study investigates landscape‐ and regional‐scale wildfire likelihood following outbreaks of the two most prevalent native insect pests...
Resource Type:: Article
Full Text:: ., & Kennedy, R. E. (2015). Does wildfire likelihood increase following insect outbreaks in conifer forests

The Level of Residual Dispersion Variation and the Power of Differential Expression Tests for RNA-Seq Data

Creator:: Mi, Gu and Di, Yanming
Abstract:: RNA-Sequencing (RNA-Seq) has been widely adopted for quantifying gene expression changes in comparative transcriptome analysis. For detecting differentially expressed genes, a variety of statistical methods based on the negative binomial (NB) distribution have been proposed. These methods differ in the ways they handle the NB nuisance parameters (i.e., the dispersion...
Resource Type:: Article
Full Text:: estimating the level of residual dispersion variation sigma is implemented as an R package named SeqDisp

Delayed Cutaneous Wound Healing and Aberrant Expression of Hair Follicle Stem Cell Markers in Mice Selectively Lacking Ctip2 in Epidermis

Creator:: Liang, Xiaobo, Bhattacharya, Shreya, Bajaj, Gaurav, Guha, Gunjan, Wang, Zhixing, Jang, Hyo-Sang, Leid, Mark, Indra, Arup Kumar, and Ganguli-Indra, Gitali
Abstract:: Background: COUP-TF interacting protein 2 [(Ctip2), also known as Bcl11b] is an important regulator of skin homeostasis, and is overexpressed in head and neck cancer. Ctip2(ep-/-) mice, selectively ablated for Ctip2 in epidermal keratinocytes, exhibited impaired terminal differentiation and delayed epidermal permeability barrier (EPB) establishment during development, similar to what...
Resource Type:: Article
Full Text:: /journal.pone.0029999 Editor: Marlon R. Schneider, University of Munich, Germany Received October 15, 2011

Predation on an Upper Trophic Marine Predator, the Steller Sea Lion: Evaluating High Juvenile Mortality in a Density Dependent Conceptual Framework

Creator:: Horning, Markus and Mellish, Jo-Ann E.
Abstract:: The endangered western stock of the Steller sea lion (Eumetopias jubatus) - the largest of the eared seals - has declined by 80% from population levels encountered four decades ago. Current overall trends from the Gulf of Alaska to the Aleutian Islands appear neutral with strong regional heterogeneities. A published...
Resource Type:: Article

Search Constraints

Search Results

Limit your search