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2012

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Mice Deficient In Gem Gtpase Show Abnormal Glucose Homeostasis Due To Defects In Beta-Cell Calcium Handling, Jenny E. Gunton, Mary Sisavanh, Rebecca A. Stokes, Jon Satin, Leslie S. Satin, Min Zhang, Sue M. Liu, Weikang Cai, Kim Cheng, Gregory J. Cooney, D. Ross Laybutt, Trina So, Juan-Carlos Molero, Shane T. Grey, Douglas A. Andres, Michael S. Rolph, Charles R. Mackay Jan 2012

Mice Deficient In Gem Gtpase Show Abnormal Glucose Homeostasis Due To Defects In Beta-Cell Calcium Handling, Jenny E. Gunton, Mary Sisavanh, Rebecca A. Stokes, Jon Satin, Leslie S. Satin, Min Zhang, Sue M. Liu, Weikang Cai, Kim Cheng, Gregory J. Cooney, D. Ross Laybutt, Trina So, Juan-Carlos Molero, Shane T. Grey, Douglas A. Andres, Michael S. Rolph, Charles R. Mackay

Pharmacology and Toxicology Publications

Aims and Hypothesis

Glucose-stimulated insulin secretion from beta-cells is a tightly regulated process that requires calcium flux to trigger exocytosis of insulin-containing vesicles. Regulation of calcium handling in beta-cells remains incompletely understood. Gem, a member of the RGK (Rad/Gem/Kir) family regulates calcium channel handling in other cell types, and Gem over-expression inhibits insulin release in insulin-secreting Min6 cells. The aim of this study was to explore the role of Gem in insulin secretion. We hypothesised that Gem may regulate insulin secretion and thus affect glucose tolerance in vivo.

Methods

Gem-deficient mice were generated and their metabolic phenotype characterised by …


Annual Reports Of The Selectmen, Treasurer, Town Clerk, And Tax Collector Of The Town Of Warner, New Hampshire Together With The Reports Of The Warner Village Water District, Vital Statistics, Etc. For The Fiscal Year Ending December 31, 2011., Warner Town Representatives Jan 2012

Annual Reports Of The Selectmen, Treasurer, Town Clerk, And Tax Collector Of The Town Of Warner, New Hampshire Together With The Reports Of The Warner Village Water District, Vital Statistics, Etc. For The Fiscal Year Ending December 31, 2011., Warner Town Representatives

Warner, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.


2011 Annual Report Of The Town Of Windsor, Nh., Windsor Town Representatives Jan 2012

2011 Annual Report Of The Town Of Windsor, Nh., Windsor Town Representatives

Windsor, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.


Town Of Waterville Valley, Nh Annual Report Of The Officers Year Ended December 31, 2011., Waterville Valley Town Representatives Jan 2012

Town Of Waterville Valley, Nh Annual Report Of The Officers Year Ended December 31, 2011., Waterville Valley Town Representatives

Waterville Valley, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.


Town Of Wilmot, New Hampshire Annual Reports Of The Town Officers, Boards, And Other Agencies For The Year Ending December 31, 2011., Wilmot Town Representatives Jan 2012

Town Of Wilmot, New Hampshire Annual Reports Of The Town Officers, Boards, And Other Agencies For The Year Ending December 31, 2011., Wilmot Town Representatives

Wilmot, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.


Evaluation Of Δd And Δ18o As Natural Markers Of Invertebrate Source Environment And Dispersal In The Middle Mississippi River-Floodplain Ecosystem, David J. Myers, Gregory Whitledge, Matt R. Whiles Jan 2012

Evaluation Of Δd And Δ18o As Natural Markers Of Invertebrate Source Environment And Dispersal In The Middle Mississippi River-Floodplain Ecosystem, David J. Myers, Gregory Whitledge, Matt R. Whiles

Publications

Movement of invertebrates among large rivers, tributaries, and floodplain lakes or dispersal of adult aquatic insects from riverine or floodplain habitats may provide important subsidies to food webs in receiving habitats. Intensive sampling at habitat interfaces and artificial labeling are two approaches to assess freshwater invertebrate dispersal, but these are difficult to implement at a landscape scale. Natural chemical tracers have been used to track dispersal of fishes and marine invertebrates, but the potential applicability of stable isotope ratios as natural tracers of invertebrate dispersal in freshwater environments has not been assessed. We evaluated stable hydrogen and oxygen isotopes (δD …


Atrazine Exposure In Public Drinking Water And Preterm Birth, Jessica L. Rinsky, Claudia Hopenhayn, Vijay Golla, Steven R. Browning, Heather M. Bush Jan 2012

Atrazine Exposure In Public Drinking Water And Preterm Birth, Jessica L. Rinsky, Claudia Hopenhayn, Vijay Golla, Steven R. Browning, Heather M. Bush

Epidemiology and Environmental Health Faculty Publications

Objectives

Approximately 13% of all births occur prior to 37 weeks gestation in the U.S. Some established risk factors exist for preterm birth, but the etiology remains largely unknown. Recent studies have suggested an association with environmental exposures. We examined the relationship between preterm birth and exposure to a commonly used herbicide, atrazine, in drinking water.

Methods

We reviewed Kentucky birth certificate data for 2004–2006 to collect duration of pregnancy and other individual-level covariates. We assessed existing data sources for atrazine levels in public drinking water for the years 2000–2008, classifying maternal county of residence into three atrazine exposure groups. …


Aging And The Motor Unit, J. Bunn Jan 2012

Aging And The Motor Unit, J. Bunn

Physical Therapy

No abstract provided.


Exposure To Ozone Modulates Human Airway Protease/Antiprotease Balance Contributing To Increased Influenza A Infection, M. J. Kesic, M. Myer, R. Bauer, I. Jaspers Jan 2012

Exposure To Ozone Modulates Human Airway Protease/Antiprotease Balance Contributing To Increased Influenza A Infection, M. J. Kesic, M. Myer, R. Bauer, I. Jaspers

Physician Assistant Program

No abstract provided.


Attraction And Repulsion: Understanding Aristotle’S Poiein And Paschein, Marjolein Oele Jan 2012

Attraction And Repulsion: Understanding Aristotle’S Poiein And Paschein, Marjolein Oele

Philosophy

No abstract provided.


Mezonos, Hoffman And The Notion Of Intent, Jon Luke Dueltgen Jan 2012

Mezonos, Hoffman And The Notion Of Intent, Jon Luke Dueltgen

Louis Jackson National Student Writing Competition

In Mezonos, the National Labor Relations Board (NLRB) for the first time had the opportunity to factually distinguish from Hoffman Plastics a case where the employer, rather than the employee, violated the Immigration Reform and Control Act. The legislative history and prior case law shows that immigration control is clearly compatible with traditional labor rights, thus the Hoffman majority has no statutory basis for reading the purposes of IRCA as entirely displacing the traditional enforcement of the National Labor Relations Act. As correctly set forth in Hoffman, a plaintiff who has the intent to violate IRCA by providing fraudulent documents …


Ensembles Of Human Mtl Neurons "Jump Back In Time" In Response To A Repeated Stimulus, M. W. Howard, Indre Viskontas, K. H. Shankar, I. Fried Jan 2012

Ensembles Of Human Mtl Neurons "Jump Back In Time" In Response To A Repeated Stimulus, M. W. Howard, Indre Viskontas, K. H. Shankar, I. Fried

Psychology

Episodic memory, which depends critically on the integrity of the medial temporal lobe (MTL), has been described as ‘‘mental time travel’’ in which the rememberer ‘‘jumps back in time.’’ The neural mechanism underlying this ability remains elusive. Mathematical and computational models of performance in episodic memory tasks provide a specific hypothesis regarding the computation that supports such a jump back in time. The models suggest that a representation of temporal context, a representation that changes gradually over macroscopic periods of time, is the cue for episodic recall. According to these models, a jump back in time corresponds to a stimulus …


Parenting As Phenotype: A Behavioral Genetic Approach To Understanding Parenting, Shirley Mcguire, Nancy Segal, S. Hershberger Jan 2012

Parenting As Phenotype: A Behavioral Genetic Approach To Understanding Parenting, Shirley Mcguire, Nancy Segal, S. Hershberger

Psychology

This article discusses the behavioral genetic (BG) approach to parenting. Parenting is considered a phenotype that can be influenced by nature and nurture. Genetic contributions to parenting are conceptualized as evidence of genotype–environment correlation (rGE). Early BG studies focused on demonstrating that some parenting dimensions were heritable due to passive and evocative rGE processes. Current studies are investigating moderators and mediators of genetic and environmental contributions to parenting. The paper uses parent and child report data on parental warmth from the Twins, Adoptees, Peers, and Siblings study to illustrate the BG approach. Results show that heritability is …


Fish Assemblage Shifts And Population Dynamics Of Smallmouth Bass (Micropterus Dolomieu) In The Beaver Archipelago, Northern Lake Michigan: A Comparison Between Historical And Recent Time Periods Amidst Ecosystem Changes., Mark A. Kaemingk, Tracy L. Galarowicz, John A. Clevenger, David F. Clapp, Herbert L. Lenon Jan 2012

Fish Assemblage Shifts And Population Dynamics Of Smallmouth Bass (Micropterus Dolomieu) In The Beaver Archipelago, Northern Lake Michigan: A Comparison Between Historical And Recent Time Periods Amidst Ecosystem Changes., Mark A. Kaemingk, Tracy L. Galarowicz, John A. Clevenger, David F. Clapp, Herbert L. Lenon

School of Natural Resources: Faculty Publications

The ecological and economic importance of Great Lakes nearshore areas and the paucity of information on nearshore Lake Michigan fish assemblages prompted us to document changes that occurred from a historical time period (1969–1972, 1975, 1977, and 1984) to a recent period (2005–2008) in a nearshore northern Lake Michigan (Beaver Archipelago) fish assemblage, with an emphasis on smallmouth bass Micropterus dolomieu. From historical to recent periods, the Beaver Archipelago fish assemblage shifted from predominantly brown bullheads Ameiurus nebulosus to predominantly smallmouth bass. Relative abundance of brown bullheads and white suckers Catostomus commersonii declined from historical to recent time periods, as …


Phosphorus In Phoenix: A Budget And Spatial Representation Of Phosphorus In An Urban Ecosystem, Genevieve S. Metson, Rebecca L. Hale, David M. Iwaniec, Elizabeth M. Cook, Jessica R. Corman, Christopher S. Galletti, Daniel L. Childers Jan 2012

Phosphorus In Phoenix: A Budget And Spatial Representation Of Phosphorus In An Urban Ecosystem, Genevieve S. Metson, Rebecca L. Hale, David M. Iwaniec, Elizabeth M. Cook, Jessica R. Corman, Christopher S. Galletti, Daniel L. Childers

School of Natural Resources: Faculty Publications

As urban environments dominate the landscape, we need to examine how limiting nutrients such as phosphorus (P) cycle in these novel ecosystems. Sustainable management of P resources is necessary to ensure global food security and to minimize freshwater pollution. We used a spatially explicit budget to quantify the pools and fluxes of P in the Greater Phoenix Area in Arizona, USA, using the boundaries of the Central Arizona– Phoenix Long-Term Ecological Research site. Inputs were dominated by direct imports of food and fertilizer for local agriculture, while most outputs were small, including water, crops, and material destined for recycling. Internally, …


Bats In And Around Structures, Dennis M. Ferraro, Lisa Pennisi, Scott E. Hygnstrom, Stephen M. Vantassel Jan 2012

Bats In And Around Structures, Dennis M. Ferraro, Lisa Pennisi, Scott E. Hygnstrom, Stephen M. Vantassel

School of Natural Resources: Faculty Publications

No abstract provided.


Predation, Herbivory, And Parasitism, Alison N.P. Stevens Jan 2012

Predation, Herbivory, And Parasitism, Alison N.P. Stevens

School of Natural Resources: Faculty Publications

No abstract provided.


Planet Protectors, A.P. Stevens Jan 2012

Planet Protectors, A.P. Stevens

School of Natural Resources: Faculty Publications

No abstract provided.


Dynamics Of Predation, Alison N.P. Stevens Jan 2012

Dynamics Of Predation, Alison N.P. Stevens

School of Natural Resources: Faculty Publications

No abstract provided.


Factors Affecting Global Climate, Alison N.P. Stevens Jan 2012

Factors Affecting Global Climate, Alison N.P. Stevens

School of Natural Resources: Faculty Publications

No abstract provided.


Population Size Of Hatchery-Reared And Wild Pallid Sturgeon In The Lower Missouri River, Kirk D. Steffensen, Larkin A. Powell, Mark A. Pegg Jan 2012

Population Size Of Hatchery-Reared And Wild Pallid Sturgeon In The Lower Missouri River, Kirk D. Steffensen, Larkin A. Powell, Mark A. Pegg

School of Natural Resources: Faculty Publications

The population size of pallid sturgeon Scaphirhynchus albus is currently unknown throughout much of the Missouri River. Listed as federally endangered in 1990, the pallid sturgeon remains one of the rarest fishes in the Missouri and Mississippi River basins, and little to no natural recruitment occurs. Artificial population supplementation via a hatchery propagation program was initiated, necessitating the collection of sexually mature pallid sturgeon. Therefore, the Nebraska Game and Parks Commission maintained an intensive broodstock collection and mark– recapture effort from 2008 to 2010 to capture reproductively ready adults for the propagation program. Coordinated crews fished baited trotlines from the …


Attendance Patterns And Survival Of Western Meadowlark Nests, Larkin A. Powell, Matthew D. Giovanni, Scott R. Groepper, Mitchell Reineke, Walter H. Schacht Jan 2012

Attendance Patterns And Survival Of Western Meadowlark Nests, Larkin A. Powell, Matthew D. Giovanni, Scott R. Groepper, Mitchell Reineke, Walter H. Schacht

School of Natural Resources: Faculty Publications

Biologists have linked nest attendance and nestling feeding rates to nest predation risk. Patterns of nest attendance also influence the success of methods designed to find nests for research use, such as rope drags. Very little has been published with regard to variation of attendance during the nesting period, but advances in video nest monitoring allow continuous data collection to provide this information. Our objectives were to (1) document attendance patterns at Western Meadowlark (Stumella neglecta) nests, (2) identify predator species of meadowlark nests, and (3) assess the effects of our camera system on nest survival. We used a solar-powered, …


2012 Interior Least Tern And Piping Plover Monitoring, Research, Management, And Outreach Report For The Lower Platte River, Nebraska, Mary Bomberger Brown, Joel G. Jorgensen, Lauren R. Dinan Jan 2012

2012 Interior Least Tern And Piping Plover Monitoring, Research, Management, And Outreach Report For The Lower Platte River, Nebraska, Mary Bomberger Brown, Joel G. Jorgensen, Lauren R. Dinan

School of Natural Resources: Faculty Publications

This document reports on our monitoring, research, management, and outreach activities during the past 12 months (2012). We prepared it to inform our partners, cooperating agencies, funding sources, and other interested parties of our activities and to provide a preliminary summary of our results.

The Lower Platte River and its major tributaries provide important nesting habitat for two state and federally protected bird species, the Interior Least Tern (Sternula antillarum athalassos) and Piping Plover (Charadrius melodus). The Tern and Plover Conservation Partnership (TPCP), based at the University of Nebraska-School of Natural Resources, and the Nongame Bird …


Use Of Partially Fenced Fields To Reduce Deer Damage To Corn, Aaron M. Hildreth, Scott E. Hygnstrom, Erin E. Blankenship, Kurt C. Vercauteren Jan 2012

Use Of Partially Fenced Fields To Reduce Deer Damage To Corn, Aaron M. Hildreth, Scott E. Hygnstrom, Erin E. Blankenship, Kurt C. Vercauteren

School of Natural Resources: Faculty Publications

White-tailed deer (Odocoileus virginianus) damage agricultural crops, often leading to significant economic losses for farmers. We used poly-mesh fence with wings to separate good deer cover from agricultural fields where crop damage by deer occurred primarily along this edge. In these cases, complete enclosure of the field with fencing may be unnecessary. The design used a 2.13-m-high polypropylene mesh fence erected along the wooded edge of a field with either 50-m or 150-m wings extending perpendicular from the fence line and wooded habitat. Fences reduced deer damage in cornfields 13.5% (F1,6= ∞, P < 0.001). Average yield in fenced fields (10,211 kg/ha) was 1,708 kg/ha greater than in control fields, which, at US$0.155/kg, equals a net gain of US$265/ha. We found no difference in damage between fences with 50-m and 150-m wings (F …


Avian Influenza Virus Prevalence In Migratory Waterfowl In The Central Flyway, 2007–2009, Scott R. Groepper, Scott E. Hygnstrom, Mark P. Vrtiska, Thomas J. Deliberto Jan 2012

Avian Influenza Virus Prevalence In Migratory Waterfowl In The Central Flyway, 2007–2009, Scott R. Groepper, Scott E. Hygnstrom, Mark P. Vrtiska, Thomas J. Deliberto

School of Natural Resources: Faculty Publications

Highly pathogenic avian influenza (HPAI H5N1) poses risks to wild birds, poultry, and humans. Personnel with the United States Department of Agriculture, Animal and Plant Health Inspection Service, Wildlife Services, state game agencies, and tribal cooperators collected >36,000 migratory birds from 2007–2009 to test for HPAI virus. Species from the dabbling duck, diving duck, and geese and swans functional groups were collected in all 10 states of the Central Flyway. Numerous combinations of the 16 hemaglutinin (H) and 9 neuraminidase (N) subtypes were discovered, but no HPAI H5N1 was found. The dabbling duck functional group had significantly higher (p < 0.001) prevalence of AIV than other functional groups and should be the focus of future surveillance.


Utility Of Improvised Video-Camera Collars For Collecting Contact Data From White-Tailed Deer: Possibilities In Disease Transmission Studies, Michael J. Lavelle, Scott E. Hygnstrom, Aaron M. Hildreth, Tyler A. Campbell, David B. Long, David G. Hewitt, Jeff Beringer, K. C. Vercauteren Jan 2012

Utility Of Improvised Video-Camera Collars For Collecting Contact Data From White-Tailed Deer: Possibilities In Disease Transmission Studies, Michael J. Lavelle, Scott E. Hygnstrom, Aaron M. Hildreth, Tyler A. Campbell, David B. Long, David G. Hewitt, Jeff Beringer, K. C. Vercauteren

School of Natural Resources: Faculty Publications

Rapidly evolving electronic technology enables wildlife researchers to collect previously unobtainable data. To explore possibilities of using deer-borne cameras (DBCs) to collect behavioral data from an animal’s point of view, we constructed DBCs and deployed them on 26 adult male whitetailed deer (Odocoileus virginianus) within a closed population (405-ha fenced area) in southern Texas just prior to the breeding season during autumn 2010. Our DBCs consisted of global positioning system collars with attached motion-activated trail cameras. We obtained 21,474 video clips from 17 functional DBCs over a period of 14 days. Individual-based data are invaluable in disease and …


Environmental And Organismal Predictors Of Intraspecific Variation In The Stoichiometry Of A Neotropical Freshwater Fish, Rana W. El-Sabaawi, Tyler J. Kohler, Eugenia Zandona, Joseph Travis, Michael C. Marshall, Steven A. Thomas, David N. Reznick, Matthew Walsh, James F. Gilliam, Catherine Pringle, Alexander S. Flecker Jan 2012

Environmental And Organismal Predictors Of Intraspecific Variation In The Stoichiometry Of A Neotropical Freshwater Fish, Rana W. El-Sabaawi, Tyler J. Kohler, Eugenia Zandona, Joseph Travis, Michael C. Marshall, Steven A. Thomas, David N. Reznick, Matthew Walsh, James F. Gilliam, Catherine Pringle, Alexander S. Flecker

School of Natural Resources: Faculty Publications

The elemental composition of animals, or their organismal stoichiometry, is thought to constrain their contribution to nutrient recycling, their interactions with other animals, and their demographic rates. Factors that affect organismal stoichiometry are generally poorly understood, but likely reflect elemental investments in morphological features and life history traits, acting in concert with the environmental availability of elements. We assessed the relative contribution of organismal traits and environmental variability to the stoichiometry of an insectivorous Neotropical stream fish, Rivulus hartii. We characterized the influence of body size, life history phenotype, stage of maturity, and environmental variability on organismal stoichiometry in …


Common–Interest Community Agreements On Private Lands Provide Opportunity And Scale For Wildlife Management, Larkin A. Powell Jan 2012

Common–Interest Community Agreements On Private Lands Provide Opportunity And Scale For Wildlife Management, Larkin A. Powell

School of Natural Resources: Faculty Publications

Common–interest community agreements on private lands provide opportunity and scale for wildlife management.— Private lands are critical to conservation planning for wildlife, worldwide. Agriculture subsidies, tax incentives, and conservation easements have been successfully used as tools to convert cropland to native vegetation. However, uncertain economies threaten the sustainability of these incentives. The wildlife management profession is in need of innovative models that support effective management of populations. I argue that biologists should consider the option of facilitating the development of private reserves to reduce the dependence of conservation on public investment. Private reserves can be enhanced by creating common– interest …


Mid-Contract Management Of Conservation Reserve Program Grasslands Provides Benefits For Ring-Necked Pheasant Nest And Brood Survival, Ty W. Matthews, J. Scott Taylor, Larkin A. Powell Jan 2012

Mid-Contract Management Of Conservation Reserve Program Grasslands Provides Benefits For Ring-Necked Pheasant Nest And Brood Survival, Ty W. Matthews, J. Scott Taylor, Larkin A. Powell

School of Natural Resources: Faculty Publications

Conservation Reserve Program (CRP) fields may provide good habitat for nesting and brood-rearing ring-necked pheasants (Phasianus colchicus) during early stages of succession. But, the success of hens in early successional CRP, relative to late successional CRP and other grassland habitats, has yet to be evaluated. The reproductive period is especially critical for populations of pheasants, and CRP’s benefits to hens and chicks may decrease as fields age because of loss of vegetative diversity, decrease in vegetation density, and accumulation of residual litter. During 2005– 2006, we evaluated spatial and temporal variation in nest and brood survival for radio-marked hen pheasants …


Sharing A Vision For Biodiversity Conservation And Agriculture, John E. Quinn Jan 2012

Sharing A Vision For Biodiversity Conservation And Agriculture, John E. Quinn

School of Natural Resources: Faculty Publications

Conservation biology and agriculture share a common landscape and a future that demands novel research and practice. Inevitably, limited resources create conflict in the absence of a shared vision forward. Therefore, given the similarities in proximate and even ultimate goals, we must envision a joint path toward renewable and resilient agroecosystems. In this commentary, I highlight the root of past conflicts and share a vision of progress forward that encompasses mutually beneficial outcomes. I include six areas of anticipatory research and inquiry at the intersection of conservation biology and agriculture to better identify shared goals and facilitate more frequent communication …