Index Catalog // ScholarsArchive@OSU

Toward biologically meaningful net carbon exchange estimates for tall, dense canopies: Multi-level eddy covariance observations and canopy coupling regimes in a mature Douglas-fir forest in Oregon

Creator:: Thomas, Christoph K., Martin, Jonathan G., Law, Beverly E., and Davis, Kent
Abstract:: We sought to improve net ecosystem exchange (NEE) estimates for a tall, dense, mature Douglas-Fir forest in the Oregon Coast range characterized by weak flows, systematic wind directional shear, and limited turbulent mixing throughout the diurnal period. We used eddy covariance (EC) observations at two levels and concurrent biological measurements...
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Full Text:: turbulent mixing throughout the diurnal period. We used eddy covariance (EC) observations at two levels

The Soil Moisture Active Passive Marena, Oklahoma, In Situ Sensor Testbed (SMAP-MOISST): Testbed Design and Evaluation of In Situ Sensors

Creator:: Cosh, Michael H., Ochsner, Tyson E., McKee, Lynn, Dong, Jingnuo, Basara, Jeffrey B., Evett, Steven R., Hatch, Christine E., Small, Eric E., Steele-Dunne, Susan C., Zreda, Marek, and Sayde, Chadi
Abstract:: n situ soil moisture monitoring networks are critical to the development of soil moisture remote sensing missions as well as agricultural and environmental management, weather forecasting, and many other endeavors. These in situ networks utilize a variety of sensors and installation practices, which confounds the development of a unified reference...
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Full Text:: station configuration included the Stevens Water Hydra Probe, Campbell Scientific 616 and 229, Decagon EC

Does the Social Capital in Networks of ‘‘Fish and Fire’’ Scientists and Managers Suggest Learning?

Creator:: Fischer, A. Paige, Vance-Borland, Ken, Burnett, Kelly M., Hummel, S., Creighton, Janean H., Johnson, Sherri L., and Jasny, Lorien
Abstract:: Patterns of social interaction influence how knowledge is generated, communicated, and applied. Theories of social capital and organizational learning suggest that interactions within disciplinary or functional groups foster communication of knowledge, whereas interactions across groups foster generation of new knowledge. We used social network analysis to examine patterns of social...
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Full Text:: a g e v a ri a b le s O b se rv ed E x p ec te d (m ea n ) S D ex p ec te d O b se rv ed E x

Formation and Properties of Astrophysical Carbonaceous Dust. I. Ab-initio Calculations of the Configuration and Binding Energies of Small Carbon Clusters

Creator:: Mauney, Christopher, Nardelli, Marco Buongiorno, and Lazzati, Davide
Abstract:: The binding energies of n < 100 carbon clusters are calculated using the ab initio density functional theory code Quantum Espresso. Carbon cluster geometries are determined using several levels of classical techniques and further refined using density functional theory. The resulting energies are used to compute the work of cluster...
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Full Text:: given as the cohesive energy Ec = Eb/n to better illustrate the properties of various clusters and to

An inducible kras[superscript v]¹² transgenic zebrafish model for liver tumorigenesis and chemical drug screening

Creator:: Nguyen, Anh Tuan, Emelyanov, Alexander, Koh, Chor Hui Vivien, Spitsbergen, Jan M., Parinov, Serguei, and Gong, Zhiyuan
Abstract:: Because Ras signaling is frequently activated by major hepatocellular carcinoma etiological factors, a transgenic zebrafish constitutively expressing the kras(V12) oncogene in the liver was previously generated by our laboratory. Although this model depicted and uncovered the conservation between zebrafish and human liver tumorigenesis, the low tumor incidence and early mortality...
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Full Text:: Zhiyuan Gong1,‡ RESEARCH ARTICLE D ise as e M od el s & M ec ha ni sm s D M M

A comparison of daily water use estimates derived from constant-heat sap-flow probe values and gravimetric measurements in pot-grown saplings.

Creator:: McCulloh, Katherine A., Winter, Klaus, Meinzer, Frederick C., Garcia, Milton, Aranda, Jorge, and Lachenbruch, Barbara
Abstract:: Use of Granier-style heat dissipation sensors to measure sap flow is common in plant physiology, ecology and hydrology. There has been concern that any change to the original Granier design invalidates the empirical relationship between sap flux density and the temperature difference between the probes. Here, we compared daily water...
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Full Text:: : 138-150. Bucci, S.J., F.G. Scholz, G. Goldstein, EC. Meinzer, J. Hinojosa, W. Hoffmann and A

Runoff generation in a steep, tropical montane cloud forest catchment on permeable volcanic substrate

Creator:: Munoz-Villers, Lyssette E. and McDonnell, Jeffrey J.
Abstract:: Most studies to date in the humid tropics have described a similar pattern of rapid translation of rainfall to runoff via overland flow and shallow subsurface stormflow. However, study sites have been few overall, and one particular system has received very little attention so far: tropical montane cloud forests (TMCF)...
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Full Text:: d18O) analysis. Measurements of electrical conductivity (EC) were carried out in situ for each water

Leg 202 summary

Creator:: Mix, Alan C., Tiedemann, R., and Blum, P.
Abstract:: More than 7 km of long and relatively continuous sediment sequences from 11 sites in the southeast and equatorial Pacific were recovered during Leg 202 for the study of the Earth’s climate and biogeochemical systems on scales that range from tectonic (millions of years) to orbital (tens to hundreds of...
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Uplink Performance Characterization and Analysis of Two-Tier Femtocell Networks

Creator:: Chakchouk, Nessrine and Hamdaoui, Bechir
Abstract:: This paper provides a cross-layer analysis of uplink performance in femtocell networks. It characterizes the uplink physical interference in femtocell networks and studies its impact on the delay and data loss rate of constant-bit-rate (CBR) traffic, as well as on the maximum achievable femto-user throughput. Our work derives data-link layer...
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Full Text:: of the service process, denoted by Ec(u), where u > 0, is defined as [29]: Ec(u) , − Λc(−u) u

Assessing the carcinogenic potential of low-dose exposures to chemical mixtures in the environment: focus on the cancer hallmark of tumor angiogenesis

Creator:: Hu, Zhiwei, Brooks, Samira A., Dormoy, Valérian, Hsu, Chia-Wen, Hsu, Hsue-Yin, Lin, Liang-Tzung, Massfelder, Thierry, Rathmell, W. Kimryn, Xia, Menghang, Al-Mulla, Fahd, Al-Temaimi, Rabeah, Amedei, Amedeo, Brown, Dustin G., Prudhomme, Kalan R., Colacci, Annamaria, Hamid, Roslida A., Mondello, Chiara, Raju, Jayadev, Ryan, Elizabeth P., Woodrick, Jordan, Scovassi, A. Ivana, Singh, Neetu, Vaccari, Monica, Roy, Rabindra, Forte, Stefano, Memeo, Lorenzo, Salem, Hosni K., Lowe, Leroy, Jensen, Lasse, Bisson, William H., and Kleinstreuer, Nicole
Abstract:: One of the important ‘hallmarks’ of cancer is angiogenesis, which is the process of formation of new blood vessels that are necessary for tumor expansion, invasion and metastasis. Under normal physiological conditions, angiogenesis is well balanced and controlled by endogenous proangiogenic factors and antiangiogenic factors. However, factors produced by cancer...
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Thermal conductivities, thermal diffusivities, and volumetric heat capacities of core samples obtained from the Japan Trench Fast Drilling Project (JFAST)

Creator:: Lin, Weiren, Fulton, Patrick M., Harris, Robert N., Tadai, Osamu, Matsubayashi, Osamu, Tanikawa, Wataru, and Kinoshita, Masataka
Abstract:: We report thermal conductivities, thermal diffusivities, and volumetric heat capacities determined by a transient plane heat source method for four whole-round core samples obtained by the Japan Trench Fast Drilling Project/Integrated Ocean Drilling Program Expedition 343. These thermal properties are necessary for the interpretation of a temperature anomaly detected in...
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Full Text:: , Q11001, doi:10.1029/2011GC003751 Bullard EC (1954) The heat flow of heat through the floor of the

Fish use of turbulence around wood in winter: Physical experiments on hydraulic variability and habitat selection by juvenile coho salmon, Oncorhynchus kisutch

Creator:: Tullos, Desirée and Walter, Cara
Abstract:: Re-introduction of large wood for expanding hydraulic variability is an increasingly common practice, yet it is not yet known what elements of hydraulic variability are most beneficial to fish. In an experiment designed to emphasize the minimization of energy expenditure through controlled predation and drift, we investigated whether juvenile coho,...
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Full Text:: habitats. Trans Am Fish Soc 135:1681-1697 564 Enders EC, Boisclair D, Roy AG (2003) The effect of

Tree-ring analysis of the fungal disease Swiss needle cast in western Oregon coastal forests

Creator:: Lee, E. Henry, Beedlow, Peter A., Waschmann, Ronald S., Burdick, Connie A., and Shaw, David C.
Abstract:: Swiss needle cast (SNC), an important fungal disease of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), has increased in severity throughout its natural and introduced range over the last half century. The role of climate change and forest management practices in the increase is unclear. We analyzed tree-ring chronologies from six late-successional...
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Full Text:: . 55 * C as ca de H ea d 34 D ec –F eb ,7 .6 ±1 .1 3– 25 0. 70 * Ju n e– Ju ly ,1 21 ±6 2 0

Nonlinear ⁴⁰Ar/³⁹Ar age systematics along the Gilbert Ridge and Tokelau Seamount Trail and the timing of the Hawaii-Emperor Bend

Creator:: Koppers. Anthony A. P., Staudigel, Hubert, Morgan, Jason Phipps, and Dunca, Robert A.
Abstract:: Over the last three decades the first-order correlation in morphology and orientation of seamount trails has been called upon to support the concept of a ‘‘fixed’’ Pacific hot spot frame of reference and to explain the Hawaii-Emperor bend (HEB) by a dramatic change in Pacific plate motion. In this paper,...
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Full Text:: p le T y p e D u p li ca te N u m b er A g e S p ec tr u m T o ta l F u si o n In v er se Is

Genetic diversity within late-summer run and half-pounder steelhead (Oncorhynchus mykiss) in the Rogue River, Oregon

Creator:: Dayan, David I., Mazur, Steve, Green, Laura J., Wells, Andrew J., Johnson, Marc A., Van Dyke, Daniel J., Samarin, Peter A., Battleson, Ryan D., and O'Malley, Kathleen G.
Abstract:: Anadromous Oncorhynchus mykiss (steelhead) express diverse migratory behaviors and life history strategies. Adult migration timing diversity within steelhead is often categorized into divergent early- and late-migration phenotypes. On the Rogue River in Oregon, adult steelhead return from the ocean during distinct early-summer, late-summer, and winter runs. Additionally, some juvenile steelhead...
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Full Text:: , Anderson EC, Kardos M, Koch I, McKinney G, Miller MR, 581 Myers J, Naish K, Narum S, O'Malley KG, Pearse D

Labile dissolved organic carbon supply limits hyporheic denitrification

Creator:: Zarnetske, Jay P., Haggerty, Roy, Wondzell, Steven M., and Baker, Michelle A.
Abstract:: We used an in situ steady state ¹⁵N-labeled nitrate (¹⁵NO₃⁻) and acetate (AcO⁻) well-to-wells injection experiment to determine how the availability of labile dissolved organic carbon (DOC) as AcO⁻ influences microbial denitrification in the hyporheic zone of an upland (third-order) agricultural stream. The experimental wells receiving conservative (Cl⁻ and Br)...
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Suspended particulate matter transport of polycyclic aromatic hydrocarbons in the lower Columbia River and its estuary

Creator:: Gregg, Tiffany, Prahl, Fredrick G., and Simoneit, Bernd R. T.
Abstract:: Analysis of suspended particulate material (SPM) collected from the Columbia River and its estuary in 2007–2008 revealed the ubiquitous presence of polycyclic aromatic hydrocarbons (PAHs) from several distinct sources. The two dominant ones were: (1) a suite of non-alkylated, three to five-ringed compounds derived from high temperature combustion and (2)...
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Full Text:: 274 m/z 252 BaA Chry Ret Fl Pyr MP m/z 192 m/z 202 m/z 234 m/z 228 Retention Time S el ec

The interplay between chemistry and nucleation in the formation of carbonaceous dust in supernova ejecta

Creator:: Lazzati, Davide and Heger, Alexander
Abstract:: Core-collapse supernovae (CCSNe) are considered to be important contributors to the primitive dust enrichment of the interstellar medium in the high-redshift universe. Theoretical models of dust formation in stellar explosions have so far provided controversial results and a generally poor fit to the observations of dust formation in local supernovae....
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Full Text:: ( )+  + ++ - + C C C 11n n 1 ( )+  + C C C, 12n n 1 ( ) +- where eC - is a Compton electron consequence of the

Impacts of bovine spongiform encephalopathy and avian influenza on U.S. meat demand

Creator:: Mu, Jianhong E., McCarl, Bruce A., Hagerman, Amy, and Bessler, David
Abstract:: This paper examines the U.S. meat demand impacts of the announced outbreaks of bovine spongiform encephalopathy (BSE) and avian influenza (AI). Findings indicate that beef and chicken demand was negatively affected by BSE and AI disease outbreaks. Specifically, in the short run, U.S. consumers shift demand due to both outbreaks...
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Full Text:: %, indicating a quicker Table 6 Estimation results from the EC-IAIDS model1) Sample period Meat AI-U.S. AI

Dispersal strength determines meta-community structure in a dendritic riverine network

Creator:: Cañedo-Argüelles, Miguel, Boersma, Kate S., Bogan, Michael T., Olden, Julian D., Phillipsen, Ivan, Schriever, Tiffany A., and Lytle, David A.
Abstract:: AIM: Meta-community structure is a function of both local (site-specific) and regional (landscape-level) ecological factors, and the relative importance of each may be mediated by the dispersal ability of organisms. Here, we used aquatic invertebrate communities to investigate the relationship between local and regional factors in explaining distance decay relationships...
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Full Text:: Indicators, 218 Whatman International, Maidstone, England) and conductivity (Milwaukee waterproof 219 EC

Metagenomics: Microbial diversity through a scratched lens

Creator:: Temperton, Ben and Giovannoni, Stephen J.
Abstract:: Since nucleic acids were first extracted directly from the environment and sequenced, metagenomics has grown to one of the most data-rich and pervasive techniques for understanding the taxonomic and functional diversity of microbial communities. In the last decade, cheaper sequencing has democratized the application of metagenomics and generated billions of...
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Full Text:: , Rodriguez-Brito B, Wegley L, Haynes M, Breitbart M, 463 Peterson DM, Saar MO, Alexander S, Alexander EC

Modeling carbohydrate ballasting by Trichodesmium spp.

Creator:: White, Angelicque E., Spitz, Yvette H., and Letelier, Ricardo M.
Abstract:: We report the development of a numerical model simulating vertical movement of the cyanobacterium Trichodesmium spp. Given a range of physiological parameters derived from the literature, resultant model solutions allow us to explore the ecological significance of vertical migration by Trichodesmium colonies in a stratified oligotrophic oceanic system such as...
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Full Text:: , nutrient uptake, or loss pro- v gr A( ) / ( )= −2 9 2 ρ ρ φηc w PAR PAR0 PARz k z= ⋅ − ⋅e d d e ec PAR

Modeling multidisciplinary design with multiagent learning

Creator:: Hulse, Daniel, Tumer, Kagan, Hoyle, Christopher, and Tumer, Irem
Abstract:: Complex engineered systems design is a collaborative activity. To design a system, experts from the relevant disciplines must work together to create the best overall system from their individual components. This situation is analogous to a multiagent system in which agents solve individual parts of a larger problem in a...
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Carnivore conservation needs evidence-based livestock protection

Creator:: van Eeden, Lily M., Eklund, Ann, Miller, Jennifer R. B., Lopez-Bao, Jose Vicente, Chapron, Guillaume, Cejtin, Mikael R., Crowther, Mathew S., Dickman, Christopher R., Frank, Jens, Krofel, Miha, Macdonald, David W., McManus, Jeannine, Meyer, Tara K., Middleton, Arthur D., Newsome, Thomas M., Ripple, William J., Ritchie, Euan G., Schmitz, Oswald J., Stoner, Kelly J., Tourani, Mahdieh, and Treves, Adrian
Abstract:: Carnivore predation on livestock often leads people to retaliate. Persecution by humans has contributed strongly to global endangerment of carnivores. Preventing livestock losses would help to achieve three goals common to many human societies: preserve nature, protect animal welfare, and safeguard human livelihoods. Between 2016 and 2018, four independent reviews...
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Full Text:: landscape scales. The European Council Directive 98/ 58/EC, concerning protection of animals kept for

A Hierarchy of Models for Simulating Experimental Results 6 from a 3D Heterogeneous Porous Medium

Creator:: Vogler, Daniel, Ostvar, Sassan, Paustian, Rebecca, and Wood, Brian D.
Abstract:: In this work we examine the dispersion of conservative tracers (bromide and fluorescein) in an experimentally constructed three-dimensional dual-porosity porous medium, and in the absence of adjustable parameters. The medium is highly heterogeneous (σ2 Y = 5.7), and consists of spherical, low-hydraulic-conductivity inclusions embedded in a high-hydraulic-conductivity matrix. The bi-modal...
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Full Text:: nt vo lu m e sp he re . † D iff us io n va lu e fr om th e lit er at ur e, sp ec ifi c

Sediment size fractionation and focusing in the equatorial Pacific: Effect on ²³⁰Th normalization and paleoflux measurements

Creator:: Lyle, Mitchell, Marcantonio, Franco, Moore, Willard S., Murray, Richard W., Huh, Chih-An, Finney, Bruce P., Murray, David W., and Mix, Alan C.
Abstract:: We use flux, dissolution, and excess ²³⁰Th data from the Joint Global Ocean Flux Study and Manganese Nodule Project equatorial Pacific study Site C to assess the extent of sediment focusing in the equatorial Pacific. Measured mass accumulation rates (MAR) from sediment cores were compared to reconstructed MAR by multiplying...
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Phytophthora Have Distinct Endogenous Small RNA Populations That Include Short Interfering and microRNAs

Creator:: Fahlgren, Noah, Bollmann, Stephanie R., Kasschau, Kristin D., Cuperus, Josh T., Press, Caroline M., Sullivan, Christopher M., Chapman, Elisabeth J., Hoyer, J. Steen, Gilbert, Kerrigan B., Grunwald, Niklaus J., and Carrington, James C.
Abstract:: In eukaryotes, RNA silencing pathways utilize 20-30-nucleotide small RNAs to regulate gene expression, specify and maintain chromatin structure, and repress viruses and mobile genetic elements. RNA silencing was likely present in the common ancestor of modern eukaryotes, but most research has focused on plant and animal RNA silencing systems. Phytophthora...
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Motor Competence and its Effect on Positive Developmental Trajectories of Health

Creator:: Robinson, Leah E., Stodden, David F., Barnett, Lisa M., Lopes, Vitor P., Logan, Samuel W., Rodrigues, Luis Paulo, and D'Hondt, Eva
Abstract:: In 2008, Stodden and colleagues took a unique developmental approach toward addressing the potential role of motor competence in promoting positive or negative trajectories of physical activity, health-related fitness, and weight status. The conceptual model proposed synergistic relationships among physical activity, motor competence, perceived motor competence, health-related physical fitness, and...
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The impact of low-dose carcinogens and environmental disruptors on tissue invasion and metastasis

Creator:: Ochieng, Josiah, Nangami, Gladys N., Ogunkua, Olugbemiga, Miousse, Isabelle R., Koturbash, Igor, Odero-Marah, Valerie, McCawley, Lisa J., Nangia-Makker, Pratima, Ahmed, Nuzhat, Luqmani, Yunus, Chen, Zhenbang, Papagerakis, Silvana, Wolf, Gregory T., Dong, Chenfang, Zhou, Binhua P., Brown, Dustin G., Colacci, Annamaria, Hamid, Roslida A., Mondello, Chiara, Raju, Jayadev, Ryan, Elizabeth P., Woodrick, Jordan, Scovassi, A. Ivana, Singh, Neetu, Vaccari, Monica, Roy, Rabindra, Forte, Stefano, Memeo, Lorenzo, Salem, Hosni K., Amedei, Amedeo, Al-Temaimi, Rabeah, Al-Mulla, Fahd, Bisson, William H., and Eltom, Sakina E.
Abstract:: The purpose of this review is to stimulate new ideas regarding low-dose environmental mixtures and carcinogens and their potential to promote invasion and metastasis. Whereas a number of chapters in this review are devoted to the role of lowdose environmental mixtures and carcinogens in the promotion of invasion and metastasis...
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Geochemical evidence in the northeast Lau Basin for subduction of the Cook-Austral volcanic chain in the Tonga Trench

Creator:: Price, Allison A., Jackson, Matthew G., Blichert-Toft, Janne, Blusztajn, Jerzy, Conatser, Christopher S., Konter, Jasper G., Koppers, Anthony A. P., and Kurz, Mark D.
Abstract:: Lau Basin basalts host an array of geochemical signatures that suggest incorporation of enriched mantle source material often associated with intraplate hotspots, but the origin of these signatures remain uncertain. Geochemical signatures associated with mantle material entrained from the nearby Samoan hotspot are present in northwest Lau Basin lavas, and...
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Full Text:: ot op ic co m po si tio ns ar e co rr ec te d to th e La Jo lla va lu e of 0. 51 18 47 .S r

Disruptive chemicals, senescence and immortality

Creator:: Carnero, Amancio, Blanco-Aparicio, Carmen, Kondoh, Hiroshi, Lleonart, Matilde E., Martinez-Leal, Juan Fernando, Mondello, Chiara, Scovassi, A. Ivana, Bisson, William H., Amedei, Amedeo, Roy, Rabindra, Woodrick, Jordan, Colacci, Annamaria, Vaccari, Monica, Raju, Jayadev, Al-Mulla, Fahd, Al-Temaimi, Rabeah, Salem, Hosni K., Memeo, Lorenzo, Forte, Stefano, Singh, Neetu, Hamid, Roslida A., Ryan, Elizabeth P., Brown, Dustin G., Wise, John P., Sr., Wise, Sandra S., and Yasaei, Hemad
Abstract:: Cell death is a process of dying within biological cells that are ceasing to function. This process is essential in regulating organism development, tissue homeostasis, and to eliminate cells in the body that are irreparably damaged. In general, dysfunction in normal cellular death is tightly linked to cancer progression. Specifically,...
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Core Principles of Bacterial Autoinducer Systems

Creator:: Hense, Burkhard A. and Schuster, Martin
Abstract:: Autoinduction (AI), the response to self-produced chemical signals, is widespread in the bacterial world. This process controls vastly different target functions, such as luminescence, nutrient acquisition, and biofilm formation, in different ways and integrates additional environmental and physiological cues. This diversity raises questions about unifying principles that underlie all AI...
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The need to breed crop varieties suitable for organic farming using wheat, tomato and broccoli as examples: A review

Creator:: Lammerts van Bueren, E. T., Jones, S. S., Tamm, L., Murphy, K. M., Myers, J. R., Leifert, C., and Messmer, M. M.
Abstract:: It is estimated that more than 95% of organic production is based on crop varieties that were bred for the conventional high-input sector. Recent studies have shown that such varieties lack important traits required under organic and low-input production conditions. This is primarily due to selection in conventional breeding programmes...
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Resazurin as a “smart” tracer for quantifying metabolically active transient storage in stream ecosystems

Creator:: Haggerty, Roy, Martí, Eugénia, Argerich, Alba, von Schiller, Daniel, and Grimm, Nancy B.
Abstract:: We propose the experimental use of resazurin (Raz) and develop a metabolically active transient storage (MATS) model to include processes that may provide additional information on transient storage from a biogeochemical perspective in stream ecosystems. Raz is a phenoxazine compound that reduces irreversibly to resorufin (Rru) in the presence of...
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A web-based software tool for participatory optimization of conservation practices in watersheds

Creator:: Babbar-Sebens, Meghna, Mukhopadhyay, Snehasis, Singh, Vidya Bhushan, and Piemonti, Adriana Debora
Abstract:: WRESTORE (Watershed Restoration Using Spatio-Temporal Optimization of Resources) is a web-based, participatory planning tool that can be used to engage with watershed stakeholder communities, and involve them in using science-based, human-guided, interactive simulation–optimization methods for designing potential conservation practices on their landscape. The underlying optimization algorithms, process simulation models, and...
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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...
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Full Text:: : Coast Range; BM: Blue Mountains; WC: West Cascades; EC: East Cascades; KM: Klamath Mountains. We include

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...
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Full Text:: : Coast Range; BM: Blue Mountains; WC: West Cascades; EC: East Cascades; KM: Klamath Mountains. We include

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...
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Full Text:: : Coast Range; BM: Blue Mountains; WC: West Cascades; EC: East Cascades; KM: Klamath Mountains. We include

Influence of climate and land use in carbon biogeochemistry in lower reaches of rivers in central southern Chile: Implications for the carbonate system in river-influenced rocky shore environments

Creator:: Pérez, Claudia A., DeGrandpre, Michael D., Lagos, Nelson A., Saldías, Gonzalo S., Cascales, Emma-Karin, and Vargas, Cristian A.
Abstract:: Freshwater discharge affects the biogeochemistry of river-influenced nearshore environments by contributing with carbon and nutrients. An increase in human activities in river basins may alter the natural riverine nutrients and carbon export to coastal ecosystems. Along a wide latitudinal range (32° 55'S-40° 10'S), this study explores the role of climate...
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Short-Term Butterfly Response to Sagebrush Steppe Restoration Treatments

Creator:: McIver, James and Macke, Euell
Abstract:: As part of the Sagebrush Steppe Treatment Evaluation Project (SageSTEP), butterflies were surveyed pre-treatment and up to four years post-treatment at 16 widely distributed sagebrush steppe sites in the interior West. Butterfly populations and communities were analyzed in response to treatments (prescribed fire, mechanical, herbicide) designed to restore sagebrush steppe...
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Impacts on Natural Enemies and Competitor Thrips of Insecticides against the Western Flower Thrips (Thysanoptera: Thripidae) in Fruiting Vegetables

Creator:: Srivastava, Mrittunjai, Funderburk, Joe, Olson, Steve, Demirozer, Ozan, and Reitz, Stuart
Abstract:: Newer, selective insecticides with few negative impacts on natural enemies and competitor species are needed for effective, sustainable management of the western flower thrips, Frankliniella occidentalis (Pergande). The purpose of this study was to evaluate the impacts on natural enemies and competitor thrips species of insecticides used for control of...
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Thin Slice Judgments in the Clinical Context

Creator:: Slepian, Michael L., Bogart, Kathleen R., and Ambady, Nalini
Abstract:: Clinicians make a variety of judgments about their clients, from judging personality traits to making diagnoses, and a variety of methods are available to do so, ranging from observations to structured interviews. A large body of work demonstrates that from a brief glimpse of another’s nonverbal behavior, a variety of...
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Abandonment of Unaweep Canyon (1.4–0.8 Ma), western Colorado: Effects of stream capture and anomalously rapid Pleistocene river incision

Creator:: Aslan, Andres, Hood, William C., Karlstrom, Karl E., Kirby, Eric, Granger, Darryl E., Kelley, Shari, Crow, Ryan, Donahue, Magdalena S., Polyak, Victor, and Asmerom, Yemane
Abstract:: Cosmogenic-burial and U-series dating, identification of fluvial terraces and lacustrine deposits, and river-profile reconstructions show that capture of the Gunnison River by the Colorado River and abandonment of Unaweep Canyon occurred between 1.4-0.8 Ma. This event led to a rapid pulse of incision unlike any documented in the Rocky Mountains....
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Circumpolar Diversity and Geographic Differentiation of mtDNA in the Critically Endangered Antarctic Blue Whale (Balaenoptera musculus intermedia)

Creator:: Sremba, Angela L., Hancock-Hanser, Brittany, Branch, Trevor A., LeDuc, Rick L., and Baker, C. Scott
Abstract:: The Antarctic blue whale (Balaenoptera musculus intermedia) was hunted to near extinction between 1904 and 1972, declining from an estimated initial abundance of more than 250,000 to fewer than 400. Here, we describe mtDNA control region diversity and geographic differentiation in the surviving population of the Antarctic blue whale, using...
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Regulation of Motility of Myogenic Cells in Filling Limb Muscle Anlagen by Pitx2

Creator:: Campbell, Adam L., Shih, Hung-Ping, Xu, Jun, Gross, Michael K., and Kioussi, Chrissa
Abstract:: Cells of the ventrolateral dermomyotome delaminate and migrate into the limb buds where they give rise to all muscles of the limbs. The migratory cells proliferate and form myoblasts, which withdraw from the cell cycle to become terminally differentiated myocytes. The myogenic lineage colonizes pre-patterned regions to form muscle anlagen...
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Generalized Inversion of Tropical Atmosphere–Ocean Data and a Coupled Model of the Tropical Pacific

Creator:: Bennett, Andrew F., Chua, Boon S., Harrison, D. Ed, and McPhaden, Michael J.
Abstract:: It is hypothesized that the circulation of the tropical Pacific Ocean and atmosphere satisfies the equations of a simple coupled model to within errors having specified covariances, and that the Tropical Atmosphere–Ocean array (TAO) measures the circulation to within errors also having specified covariances. This hypothesis is tested by finding...
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Full Text:: 70 TOGA TAO moorings (see Fig. 2). Thus there are 689 SST data, 1248 wind components, and 687 Z20

A high level of liver-specific expression of oncogenic KrasV12 drives robust liver tumorigenesis in transgenic zebrafish

Creator:: Nguyen, Anh Tuan, Emelyanov, Alexander, Koh, Chor Hui Vivien, Spitsbergen, Jan M., Lam, Siew Hong, Mathavan, Sinnakaruppan, Parinov, Serguei, and Gong, Zhiyuan
Abstract:: Human liver cancer is one of the deadliest cancers worldwide, with hepatocellular carcinoma (HCC) being the most common type. Aberrant Ras signaling has been implicated in the development and progression of human HCC, but a complete understanding of the molecular mechanisms of this protein in hepatocarcinogenesis remains elusive. In this...
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Full Text:: Zhiyuan Gong1,* RESEARCH ARTICLE D ise as e M od el s & M ec ha ni sm s D M M

Age systematics of two young en echelon Samoan volcanic trails

Creator:: Koppers, Anthony A. P., Russell, Jamie A., Roberts, Jed, Jackson, Matthew G., Konter, Jasper G., Wright, Dawn J., Staudigel, Hubert, and Hart, Stanley R.
Abstract:: The volcanic origin of the Samoan archipelago can be explained by one of three models, specifically, by a hot spot forming over a mantle plume, by lithospheric extension resulting from complex subduction tectonics in the region, or by a combination of these two processes, either acting sequentially or synchronously. In...
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Full Text:: fo rt he ag e sp ec tr a. M S W D va lu es fo rt he ag e pl at ea us an d in ve rs e is oc hr on

Kinetic Mechanism of L-α-Glycerophosphate Oxidase from Mycoplasma pneumoniae

Creator:: Maenpuen, Somchart, Watthaisong, Pratchaya, Supon, Pacharee, Sucharitakul, Jeerus, Parsonage, Derek, Karplus, P. Andrew, Claiborne, Al, and Chaiyen, Pimchai
Abstract:: L-α-glycerophosphate oxidase is an FAD-dependent enzyme that catalyzes the oxidation of L-α-glycerophosphate (Glp) by molecular oxygen to generate dihydroxyacetone phosphate (DHAP) and hydrogen peroxide (H₂O₂). The catalytic properties of the recombinant His₆-GlpO from Mycoplasma pneumoniae (His₆-MpGlpO) were investigated with transient and steady-state kinetics and ligand binding. The results indicate that...
Resource Type:: Article
Full Text:: peroxidase. 31 Enzyme Commission number 32 L-α-glycerophosphate oxidase, EC 1.1.3.21 33 Keywords 34 L

Nature and Extent of the Deep Biosphere

Creator:: Colwell, Frederick S. and D’Hondt, Steven
Abstract:: In the last three decades we have learned a great deal about microbes in subsurface environments. Once, these habitats were rarely examined, perhaps because so much of the life that we are concerned with exists at the surface and seems to pace its metabolic and evolutionary rhythms with the overt...
Resource Type:: Article

Seismoturbidite record as preserved at core sites at the Cascadia and Sumatra–Andaman subduction zones

Creator:: Patton, J. R., Goldfinger, C., Morey, A. E., Romsos, C., Black, B., Djadjadihardja, Y., and Udrekh
Abstract:: Turbidite deposition along slope and trench settings is evaluated for the Cascadia and Sumatra-Andaman subduction zones. Source proximity, basin effects, turbidity current flow path, temporal and spatial earthquake rupture, hydrodynamics, and topography all likely play roles in the deposition of the turbidites as evidenced by the vertical structure of the...
Resource Type:: Article
Full Text:: +- 550 2,760 +- 70 02.5g/cc dn0255 SI X 10-50 50 re pe at ed s ec tio n re pe at ed s ec tio

State of the Art in Large-Scale Soil Moisture Monitoring

Creator:: Ochsner, Tyson E., Cosh, Michael H., Cuenca, Richard H., Dorigo, Wouter A., Draper, Clara S., Hagimoto, Yutaka, Kerr, Yann H., Larson, Kristine M., Njoku, Eni G., Small, Eric E., and Zreda, Marek
Abstract:: Soil moisture is an essential climate variable influencing land–atmosphere interactions, an essential hydrologic variable impacting rainfall–runoff processes, an essential ecological variable regulating net ecosystem exchange, and an essential agricultural variable constraining food security. Large-scale soil moisture monitoring has advanced in recent years, creating opportunities to transform scientific understanding of soil...
Resource Type:: Article

The beetle tree of life reveals that Coleoptera survived end-Permian mass extinction to diversify during the Cretaceous terrestrial revolution

Creator:: Mckenna, Duane D., Wild, Alexander L., Kanda, Kojun, Bellamy, Charles L., Beutel, Rolf G., Caterino, Michael S., Farnum, Charles W., Hawks, David C., Ivie, Michael A., Jameson, Mary Liz, Leschen, Richard A. B., Marvaldi, Adriana E., McHugh, Joseph V., Newton, Alfred F., Robertson, James A., Thayer, Margaret K., Whiting, Michael F., Lawrence, John F., S´lipin´ski, Adam, Maddison, David R., and Farrell, Brian D.
Abstract:: Here we present a phylogeny of beetles (Insecta: Coleoptera) based on DNA sequence data from eight nuclear genes, including six single-copy nuclear protein-coding genes, for 367 species representing 172 of 183 extant families. Our results refine existing knowledge of relationships among major groups of beetles. Strepsiptera was confirmed as sister...
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Full Text:: ) ,G ri m al di & E ng el (2 00 5) an d B ec ke m ey er & E ng el (2 00 8) C uc uj oi

State of the Climate in 2012

Creator:: Blunden, Jessica and Arndt, Derek S.
Abstract:: For the first time in several years, the El Niño-Southern Oscillation did not dominate regional climate conditions around the globe. A weak La Niña dissipated to ENSOneutral conditions by spring, and while El Niño appeared to be emerging during summer, this phase never fully developed as sea surface temperatures in...
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