Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2001

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 4801 - 4830 of 8288

Full-Text Articles in Entire DC Network

Research News: 2001, No. 1, University Of Mississippi. School Of Pharmacy Jan 2001

Research News: 2001, No. 1, University Of Mississippi. School Of Pharmacy

Research News: Grants and Publications (2000-2014)

Grants, publications, technology transfer, special announcements


The New Hampshire, Vol. 90 [91], No. 28 (Jan. 30, 2001), The New Hampshire Jan 2001

The New Hampshire, Vol. 90 [91], No. 28 (Jan. 30, 2001), The New Hampshire

The New Hampshire Print Edition

An independent student produced newspaper from the University of New Hampshire. This volume was printed as 90, but it is the 91st volume in the series. This was corrected in pencil.


Exercise And Menopausal Symptoms., Tracy Anne Northrup Jan 2001

Exercise And Menopausal Symptoms., Tracy Anne Northrup

Theses and Dissertations

This project was aimed at improving our understanding of how exercise impacts the menopausal transition in order to offer women guidance and understanding in managing their own passage through menopause. Participants included 90 healthy midlife women between the ages of 45–55. They were asked to complete demographic information regarding their menstrual history and two questionnaires including the Kaufert and Syrotuik Symptom Index-Revised and the Exercise Inventory. The Symptom Index-Revised was given to each respondent twice; first for symptoms experienced since turning 40, and secondly for symptoms directly attributable to menopause. Double administration of this symptom checklist allowed for participants to …


The Genetic Mating System And Population Structure Of The Green -Rumped Parrotlet., Rebecca Renae Melland Jan 2001

The Genetic Mating System And Population Structure Of The Green -Rumped Parrotlet., Rebecca Renae Melland

Theses and Dissertations

The population genetic structure and extra-pair paternity were investigated using microsatellite markers in a Neotropical parrot, the Green-rumped Parrotlet (Forpus pesserinus). Blood samples were taken from adults at 6 natural populations from the Llanos of Venezuela and 160 families from the Hato Masaguaral population. Adult samples were screened at 10 microsatellite loci. Offspring were screened at 3 loci. Parentage analysis of 827 offspring revealed an extra-pair fertilization (EPF) rate of 7.7% young (n = 64) in 14.4% of nests (n = 23). No offspring resulted from intra-specific parasitism. Identification of genetic paternity was attempted for all extra-pair young. Comparisons of …


Localization Of Endothelial Cells And Their Precursors In The Embryonic Chick Heart During Coronary Vasculogenesis Utilizing An Mrna Specific Probe., Michelle Lynn Slover Jan 2001

Localization Of Endothelial Cells And Their Precursors In The Embryonic Chick Heart During Coronary Vasculogenesis Utilizing An Mrna Specific Probe., Michelle Lynn Slover

Theses and Dissertations

The definitive origin(s) of endothelial cell precursors involved in establishing the endothelial lining of intramural coronary vasculature within the subepicardial space of the embryonic chick heart have not been fully characterized. This vasculogenic process is suggested to derive from reciprocal tissue interactions between the myocardium, dorsal mesocardium, and continuous epicardium. These developmental processes occur in chick embryos, staged 16–25 (2 to 4.5–5 days). In the current study, presumptive endothelial precursor cells have been located amongst the surface epithelial cells of the dorsal mesocardium and villi of the proepicardial organ, both of which contribute to the epicardial epithelium. Endothelial precursor cells …


Mustang Daily, January 30, 2001 Jan 2001

Mustang Daily, January 30, 2001

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.


The Amicus Curiae (Vol. 11, Issue 5) Jan 2001

The Amicus Curiae (Vol. 11, Issue 5)

Student Newspaper (Amicus, Advocate...)

No abstract provided.


Ekupdate, January 29, 2001, Eastern Kentucky University, Public Relations Jan 2001

Ekupdate, January 29, 2001, Eastern Kentucky University, Public Relations

EKU Update

No abstract provided.


The Statesman, V. 44, I. 60, State University Of New York At Stony Brook Jan 2001

The Statesman, V. 44, I. 60, State University Of New York At Stony Brook

Stony Brook Statesman-Sucolian

v. 44, i. 60


Fortnightly - January 29, 2001 Jan 2001

Fortnightly - January 29, 2001

Fortnightly

No abstract provided.


The Collegian (2001-01-29), Armando Flores Jan 2001

The Collegian (2001-01-29), Armando Flores

UTB/TSC Archives - The Collegian [Newspaper]

Vol. 53, No. 18


January 29, 2001 Reporter, University Of Alabama At Birmingham Jan 2001

January 29, 2001 Reporter, University Of Alabama At Birmingham

eReporter (campus newsletter)

No abstract provided.


Faculty Newsnotes 2001 No. 335, Office Of The Provost Jan 2001

Faculty Newsnotes 2001 No. 335, Office Of The Provost

Faculty Newsnotes (1972-2010)

No abstract provided.


Erv41p And Erv46p New Components Of Copii Vesicles Involved In Transport Between The Er And Golgi Complex, Stefan Otte, William J. Belden, Matthew Heidtman, Jay Liu, Ole N. Jensen, Charles Barlowe Jan 2001

Erv41p And Erv46p New Components Of Copii Vesicles Involved In Transport Between The Er And Golgi Complex, Stefan Otte, William J. Belden, Matthew Heidtman, Jay Liu, Ole N. Jensen, Charles Barlowe

Dartmouth Scholarship

Proteins contained on purified COPII vesicles were analyzed by matrix-assisted laser desorption ionization mass spectrometry combined with database searching. We identified four known vesicle proteins (Erv14p, Bet1p, Emp24p, and Erv25p) and an additional nine species (Yip3p, Rer1p, Erp1p, Erp2p, Erv29p, Yif1p, Erv41p, Erv46p, and Emp47p) that had not been localized to ER vesicles. Using antibodies, we demonstrate that these proteins are selectively and efficiently packaged into COPII vesicles. Three of the newly identified vesicle proteins (Erv29p, Erv41p, and Erv46p) represent uncharacterized integral membrane proteins that are conserved across species. Erv41p and Erv46p were further characterized. These proteins co- localized to …


The George-Anne, Georgia Southern University Jan 2001

The George-Anne, Georgia Southern University

The George-Anne

  • Announcements
  • Police Beat
  • Georgia News Brief
  • Opinions Sports
  • Lifestyles
  • Sports
  • Classifieds


Branchinecta Hiberna, A New Species Of Fairy Shrimp (Crustacea: Anostraca) From Western North America, D. Christopher Rogers, Michael Fugate Jan 2001

Branchinecta Hiberna, A New Species Of Fairy Shrimp (Crustacea: Anostraca) From Western North America, D. Christopher Rogers, Michael Fugate

Western North American Naturalist

Branchinecta hiberna, a new species of fairy shrimp, is described from temporary pools in the Great Basin region of south central Oregon, northeastern California, and adjacent Nevada. The new species shares several characters with Branchinecta cornigera Lynch, 1958: males bear a similar large patch of small spines on the basal segment of antenna 2, and females bear the similar robust antenna 2 with medial spur, brood pouch shape, and resting egg (cyst) morphology. The new species differs from B. cornigera in the shape of the distal segment of antenna 2 and the number and size of spines on the …


Spruce Beetle (Dendroctonus Rufipennis) Outbreak In Engelmann Spruce (Picea Engelmannii) In Central Utah, 1986–1998, Alan D. Dymerski, John A. Anhold, Allen S. Munson Jan 2001

Spruce Beetle (Dendroctonus Rufipennis) Outbreak In Engelmann Spruce (Picea Engelmannii) In Central Utah, 1986–1998, Alan D. Dymerski, John A. Anhold, Allen S. Munson

Western North American Naturalist

Extensive Engelmann spruce (Picea engelmannii Parry ex Engelm.) mortality caused by the spruce beetle (Dendroctonus rufipennis Kirby) has been occurring at the southern end of the Wasatch Plateau in central Utah. This spruce beetle outbreak is the largest recorded in Utah history. An extensive ground survey was conducted in 1996 on the Manti-LaSal National Forest, Sanpete and Ferron Ranger Districts, to document mortality and impact of a major spruce beetle outbreak on post-outbreak forest composition. In 1998 the same sites were resurveyed. Survey results indicate Engelmann spruce basal area (BA) loss averaged 78% in trees ≥5 inches diameter …


Experimental Manipulations Of Fertile Islands And Nurse Plant Effects In The Mojave Desert, Usa, Lawrence R. Walker, Daniel B. Thompson, Fredrick H. Landau Jan 2001

Experimental Manipulations Of Fertile Islands And Nurse Plant Effects In The Mojave Desert, Usa, Lawrence R. Walker, Daniel B. Thompson, Fredrick H. Landau

Western North American Naturalist

In a mixed desert shrub community we removed and added shrub canopies to examine above- and belowground influences of 3 species of shrubs on islands of soil fertility and the survival of transplanted Ambrosia dumosa seedlings. Soils sampled under shrubs in the wet season had higher pH, water content, organic matter, and both total and mineralizable nitrogen than soils in adjacent open areas, confirming a widely established pattern in arid lands. However, we also found species differences in soil parameters. Soils under Coleogyne ramosissima had highest pH, soils under A. dumosa had highest water content and nitrogen mineralization rates, and …


The Role Of Dietary Fiber In Dung Size Of Bushy-Tailed Woodrats, Neotoma Cinerea: Its Potential Application To Paleoclimatic Interpretation, Jennifer C. Hallett, Peter E. Wigand Jan 2001

The Role Of Dietary Fiber In Dung Size Of Bushy-Tailed Woodrats, Neotoma Cinerea: Its Potential Application To Paleoclimatic Interpretation, Jennifer C. Hallett, Peter E. Wigand

Western North American Naturalist

A laboratory study was conducted to examine causes underlying variation in woodrat dung size. Eight bushy-tailed woodrats, Neotoma cinerea, were captured and sequentially fed 2 diets of 46% and 63% neutral detergent fiber (NDF). Dung pellets were collected for 2 days following 7 days of acclimation to each diet. Length and width of oven-dried pellets ranged, respectively, from 8.3 to 10.2 mm and 3.2 to 4.9 mm for diet 1, and 8.9 to 12.4 mm and 3.6 to 4.7 mm for diet 2. Body weight ranged from 232.0 to 504.5 g and did not significantly affect dung size. A …


Taphonomy And Significance Of Jefferson's Ground Sloth (Xenarthra: Megalonychidae) From Utah, H. Gregory Mcdonald, Wade E. Miller, Thomas H. Morris Jan 2001

Taphonomy And Significance Of Jefferson's Ground Sloth (Xenarthra: Megalonychidae) From Utah, H. Gregory Mcdonald, Wade E. Miller, Thomas H. Morris

Western North American Naturalist

While a variety of mammalian megafauna have been recovered from sediments associated with Lake Bonneville, Utah, sloths have been notably rare. Three species of ground sloth, Megalonyx jeffersonii, Paramylodon harlani, and Nothrotheriops shastensis, are known from the western United States during the Pleistocene. Yet all 3 are rare in the Great Basin, and the few existing records are from localities on the basin margin. The recent discovery of a partial skeleton of Megalonyx jeffersonii at Point-of-the-Mountain, Salt Lake County, Utah, fits this pattern and adds to our understanding of the distribution and ecology of this extinct species. Its occurrence …


Nitrogen Acquisition From Different Spatial Distributions By Six Great Basin Plant Species, Sara E. Duke, Martyn M. Caldwell Jan 2001

Nitrogen Acquisition From Different Spatial Distributions By Six Great Basin Plant Species, Sara E. Duke, Martyn M. Caldwell

Western North American Naturalist

Plants of different growth form may utilize soil nutrients in various spatial distributions through different scales of foraging. In this study we evaluated the ability of 6 species commonly found in the Great Basin to utilize nitrogen (N) distributed in different patterns. Three growth forms were represented by these 6 species.

We applied 15N-labeled nitrogen in concentrated patches and over broader uniform areas (at approximately 1% the concentration of the patches) in large, outdoor sand-culture plots. Six weeks after N was applied, 2 plants adjacent to the patch (Patch Treatment) and 2 plants within the uniform application (Uniform Treatment) …


Shrews Of The La Sal Mountains, Southeastern Utah, Eric A. Rickart, Lawrence R. Heaney Jan 2001

Shrews Of The La Sal Mountains, Southeastern Utah, Eric A. Rickart, Lawrence R. Heaney

Western North American Naturalist

We conducted a trapping survey of small mammals along an elevational gradient in the La Sal Mountains and documented 4 species of shrews (Sorex), the largest number inhabiting any mountain range in Utah. Sorex palustris was restricted to very moist microhabitats near open water at mid- to high elevations where it was relatively common. Occurring in nearly all habitats across the entire sampling gradient, S. monticolus was the numerically dominant small mammal at many sites. Sorex nanus, a new record for the La Sals, was found in areas of rockfall at high elevations and in a rocky …


Seed Banks Of Bromus Tectorum-Dominated Communities In The Great Basin, L. David Humphrey, Eugene W. Schupp Jan 2001

Seed Banks Of Bromus Tectorum-Dominated Communities In The Great Basin, L. David Humphrey, Eugene W. Schupp

Western North American Naturalist

Many shrub-steppe communities of the Great Basin have been converted to Bromus tectorum–dominated communities. Seed production and seed bank traits of native perennials may be poorly suited to conditions of communities dominated by this introduced annual, and native perennials may be lost from the seed banks. Seed banks of former shrub-steppe communities now dominated by annuals were quantified on 3 sites in western Utah to determine if seeds of native perennials were present and to track changes in Bromus tectorum seed densities and species composition of seed banks after fire. Burned and unburned plots on 1 site were sampled …


Scatter-Hoarding Behavior Of Deer Mice (Peromyscus Maniculatus), Stephen B. Vander Wall, Theodore C. Thayer, Jennifer S. Hodge, Maurie J. Beck, Julie K. Roth Jan 2001

Scatter-Hoarding Behavior Of Deer Mice (Peromyscus Maniculatus), Stephen B. Vander Wall, Theodore C. Thayer, Jennifer S. Hodge, Maurie J. Beck, Julie K. Roth

Western North American Naturalist

Deer mice (Peromyscus maniculatus) are known to larder hoard food, but their scatter-hoarding behavior is poorly documented. Eleven deer mice were each presented with 150 Jeffrey pine (Pinus jeffreyi) seeds in 10 × 10-m enclosures in Jeffrey pine forests on the east slope of the Sierra Nevada. Subjects made a mean ±1 s of 31.2 ± 30.0 caches per trial. Caches were shallow (most 2–12 mm deep) and usually contained only 1 or 2 seeds. Most caches were made at the edge of antelope bitterbrush (Purshia tridentata) shrubs in mineral soil or in thin …


Relationships Between Centaurea Maculosa And Indigenous Plant Assemblages, Susan A. Kedzie-Webb, Roger L. Sheley, John J. Borkowski, James S. Jacobs Jan 2001

Relationships Between Centaurea Maculosa And Indigenous Plant Assemblages, Susan A. Kedzie-Webb, Roger L. Sheley, John J. Borkowski, James S. Jacobs

Western North American Naturalist

Ecological impacts of invasive plants include displacement of indigenous species and declines in species richness and diversity. The objective of this study was to characterize the functional relationship between plant community composition and Centaurea maculosa Lam. (spotted knapweed) within a Festuca idahoensis / Pseudoroegneria spicatum habitat type in Montana. Density, cover, and biomass of all species were collected along a gradient of spotted knapweed cover ranging from 0% to about 100%. Step-down regression was used to determine the relationship among C. maculosa, indigenous species, species richness, and Shannon-Weavers diversity index. Regressions showed that indigenous perennial grass cover, species richness, …


Natural History And Invasion Of Russian Olive Along Eastern Montana Rivers, Peter Lesica, Scott Miles Jan 2001

Natural History And Invasion Of Russian Olive Along Eastern Montana Rivers, Peter Lesica, Scott Miles

Western North American Naturalist

Russian olive (Elaeagnus angustifolia) is an exotic tree considered invasive in the western U.S. There is concern it will replace native riparian forests, resulting in a loss of biological diversity. We studied the dynamics of Russian olive invasion on the Marias River in north central Montana and the lower Yellowstone River in southeastern Montana to determine where and in what habitats it occurs, how it is interacting with plains cottonwood (Populus deltoides) and green ash (Fraxinus pennsylvanica), the dominant native riparian trees, and how these interactions will alter future riparian forests. We measured size, …


Microhabitat Partitioning By Two Chipmunk Species (Tamias) In Western Colorado, J. Jeffrey Root, Charles H. Calisher, Barry J. Beaty Jan 2001

Microhabitat Partitioning By Two Chipmunk Species (Tamias) In Western Colorado, J. Jeffrey Root, Charles H. Calisher, Barry J. Beaty

Western North American Naturalist

We examined microhabitat use of sympatrically occurring Tamias minimus (least chipmunk) and T. rufus (Hopi chipmunk) in a piñon-juniper/sagebrush vegetative community near Molina, western Colorado, from October 1994 to June 1999. This community is dominated by 2 major microhabitat types: shrub (sage; Artemisia spp.) and tree (pine and juniper; Pinus edulis and Juniperus scopulorum). Small mammals were live-trapped, marked, and released throughout this study. When it was the most abundant Tamias species on the study plots (1994–1997), Tamias minimus captures were associated with trees. Tamias rufus also exhibited this association but was captured at very low abundances during this …


Biology And Management Of Noxious Rangeland Weeds Roger L. Sheley And Janet K. Petroff, Editors, Larry D. Howery Jan 2001

Biology And Management Of Noxious Rangeland Weeds Roger L. Sheley And Janet K. Petroff, Editors, Larry D. Howery

Western North American Naturalist

No abstract provided.


Survival And Development Of Phoradendron Californicum And Acacia Greggii During A Drought, Simon A. Lei Jan 2001

Survival And Development Of Phoradendron Californicum And Acacia Greggii During A Drought, Simon A. Lei

Western North American Naturalist

Survival and development of parasitic and autoparasitic Phoradendron californicum (desert mistletoe) and their Acacia greggii (catclaw) hosts were quantitatively investigated during the 1997 drought in southern Nevada. Phoradendron californicum was parasitic on other individuals of the same species (autoparasitic), and these in turn were parasitic on A. greggii hosts. An extensive drought from February 1995 to mid-July 1997 was characterized by extremely low seasonal rainfall and high summer air temperatures. Extensively mistletoe-infested hosts had significantly less canopy volume and produced significantly fewer leaves, flowers, and fruits than uninfested (control) or lightly infested hosts. Mistletoe plants on A. greggii hosts with …


Accidental Mass Mortality Of Migrating Mule Deer, Vernon C. Bleich, Becky M. Pierce Jan 2001

Accidental Mass Mortality Of Migrating Mule Deer, Vernon C. Bleich, Becky M. Pierce

Western North American Naturalist

No abstract provided.