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

Digital Commons Network™

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

1999

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 1921 - 1950 of 7528

Full-Text Articles in Entire DC Network

July 24, 1999 (Pages 3823-4034), Pennsylvania Legislative Reference Bureau Jul 1999

July 24, 1999 (Pages 3823-4034), Pennsylvania Legislative Reference Bureau

Volume 29 (1999)

No abstract provided.


Tri-County Challenger, July 24, 1999, The Weekly Challenger, Et Al Jul 1999

Tri-County Challenger, July 24, 1999, The Weekly Challenger, Et Al

Weekly Challenger Newspaper Collection

The July 24, 1999, issue of Tri-County Challenger.


The Weekly Challenger, July 24, 1999, The Weekly Challenger, Et Al Jul 1999

The Weekly Challenger, July 24, 1999, The Weekly Challenger, Et Al

Weekly Challenger Newspaper Collection

The July 24, 1999, issue of The Weekly Challenger.


Volume 36, Number 41: July 23, 1999, University Of North Dakota Jul 1999

Volume 36, Number 41: July 23, 1999, University Of North Dakota

University Letter Archive

No abstract provided.


A Sound Study Of Conceptual Understanding During Constructivist Teaching, Terrijann MüLlerdahlberg Jul 1999

A Sound Study Of Conceptual Understanding During Constructivist Teaching, Terrijann MüLlerdahlberg

Theses and Dissertations

This study presents the results of an examination of changes in six fourth grade students thinking about the nature of sound during a nine lesson unit on sound. At the core of the curriculum was a teaching strategy called constructivist teaching (Bybee, 1993). Classroom observation, students' written work, and interviewing were the major data gathering procedures used to develop a coding system to categorize the patterns that emerged: (a) students' conceptual learning, and (b) the students' perceptions of factors leading to this understanding. Three patterns emerged that indicated students' conceptual learning: (a) students added new concepts to their existing cognitive …


The Parthenon, July 22, 1999, Marshall University Jul 1999

The Parthenon, July 22, 1999, Marshall University

The Parthenon

No abstract provided.


The Beta Subunit Determines The Nucleotide Specificity Of Atp-Specific And Gtp-Specific Succinyl-Coa Synthetases In Vertebrates., James Darwin Johnson Jul 1999

The Beta Subunit Determines The Nucleotide Specificity Of Atp-Specific And Gtp-Specific Succinyl-Coa Synthetases In Vertebrates., James Darwin Johnson

Theses and Dissertations

Two isoforms of succinyl-CoA synthetase (SCS) have been purified from breast muscle and liver in pigeon, one highly specific for adenine nucleotides (A-SCS), the other for guanine nucleotides (G-SCS), respectively. Nucleotide specificity studies demonstrated that A-SCS could not utilize guanine nucleotides and that G-SCS could not use adenine nucleotides. Enzymatic assays of tissue extracts detected both isoforms in kidney, heart, and brain, while only A-SCS was in breast muscle, and G-SCS in liver. Highly purified A-SCS and G-SCS each possessed the α and β subunits that are common to all previously purified SCSs. Characterization studies of the two isoforms by …


Middle School Advisory Program's Influence On The Perceptions And Needs Of Early Adolescent Females., Gail Catherine Ingwalson Jul 1999

Middle School Advisory Program's Influence On The Perceptions And Needs Of Early Adolescent Females., Gail Catherine Ingwalson

Theses and Dissertations

Advisory programs were designed to address the emotional and social aspect of education in an effort to enhance the cognitive development of our early adolescent students. This affective component acknowledges the importance of a developmentally responsive middle school education. Yet, this critical middle school component has been difficult to implement and even more challenging to maintain since the inception of the middle school movement. This qualitative study focuses on the experiences of six early adolescent females during their advisory time. The purpose of the study was to explore the advisory program's influence on the perceptions and psychological needs of these …


Cytotoxin Targeting Of Oxytocin (Ot) Receptive Cells: Ot Receptors And Salt Appetite., Trini Troy Vargas Jul 1999

Cytotoxin Targeting Of Oxytocin (Ot) Receptive Cells: Ot Receptors And Salt Appetite., Trini Troy Vargas

Theses and Dissertations

The targeting of oxytocin (OT) receptive cells with a novel cytoxin (ricin A-chain oxytocin conjugated to oxytocin; rAOT) has revealed a potential role for OT in the osmolality-related inhibition of salt appetite seen in two model systems. The experiments in this study were designed to test the hypothesis that intraventricular (icv) treatment with rAOT results in the loss of [I 125]-OVTA binding sites in the central amygdala in these two model systems (Experiment 1: Mannitol Challenge; Experiment 2 PEG/Mannitol Challenge). Experiment 1 (Mannitol Challenge; produces hyperosmotic/hyponatremic conditions in the rat) and Experiment 2 (PEG/Mannitol Challenge; produces hypovolemic/hyperosmotic/hyponatremic conditions in the …


July 22, 1999, The Daily Mississippian Jul 1999

July 22, 1999, The Daily Mississippian

Daily Mississippian (all digitized issues)

No abstract provided.


July 21, 1999 Cal Poly Report, Public Affairs Office Jul 1999

July 21, 1999 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.


The Impact Of Early Screening On Preschool Children Attending Camden City Head Start, Beverly M. Clement Jul 1999

The Impact Of Early Screening On Preschool Children Attending Camden City Head Start, Beverly M. Clement

Theses and Dissertations

Extensive published research supports comprehensive preschool programs for children and their families, especially for "At Risk" populations often found within inner cities. Programs such as Head Start prepare children for school entrance, provide them with a caring and nurturing environment and empower families with the skills and resources necessary for successful living. The Camden County Council On Economic Opportunity (CCCOEO, Inc.), grantee for the Camden County, New Jersey Head Start Program, provides comprehensive services for "At Risk" preschool children, ages three to five.

Starting in September 1998 to March 1999, sixty-seven preschoolers attending various CCCOEO Head Start Centers were given …


July 21, 1999, The Daily Mississippian Jul 1999

July 21, 1999, The Daily Mississippian

Daily Mississippian (all digitized issues)

No abstract provided.


Central Florida Future, July 21, 1999 Jul 1999

Central Florida Future, July 21, 1999

Central Florida Future

Justice impeachment overruled; SG leaders address students' concerns at Town Hall meeting.


Mental Health Coverage Parity: Separating Wheat From Chaff, Karl Polzer Jul 1999

Mental Health Coverage Parity: Separating Wheat From Chaff, Karl Polzer

National Health Policy Forum

This paper examines the issue of mandating parity in coverage of mental health services in the context of the growing use by private-sector employers of managed behavioral health care providers. Existing parity laws are reviewed, along with estimates of the costs of parity. The tools used by behavioral health care firms to manage care and costs are also discussed.


Bioactivities Of A Tumour Necrosis Like Factor Released By Chicken Rnacrophages, Silke Rautenschlein, Anuradha Subramanian, Jagdev M. Sharma Jul 1999

Bioactivities Of A Tumour Necrosis Like Factor Released By Chicken Rnacrophages, Silke Rautenschlein, Anuradha Subramanian, Jagdev M. Sharma

Papers in Biotechnology

To test for tumour necrosis-like factor (TNF) of chickens, supernatants of a lipopolysaccharide (LPS)-stimulated chicken macrophage cell line MQ-NCSU were analysed. A sequence of ion-exchange and gel-permeation chromatography was utilised to isolate TNF-like activity from the culture supernatant. The peak of TNF-like cytotoxic activity corresponded to the fractions with a nlolecular weight of 81 kDa or higher. Polyclonal anti-human TNF-a antiserum cross-reacted by Western blotting with a 17 kDa protein in the TNF-containing fraction ~ ~ n d e denaturing conditions. This result indicated that chicken TNF-like factor in the biologically active form may be a protein multimer of monomers …


Bioactivities Of A Tumour Necrosis Like Factor Released By Chicken Macrophages, Silke Rautenschlein, Anuradha Subramanian, Jagdev M. Sharma Jul 1999

Bioactivities Of A Tumour Necrosis Like Factor Released By Chicken Macrophages, Silke Rautenschlein, Anuradha Subramanian, Jagdev M. Sharma

Papers in Biotechnology

To test for tumour necrosis-like factor (TNF) of chickens, supernatants of a lipopolysaccharide (LPS)-stimulated chicken macrophage cell line MQ-NCSU were analysed. A sequence of ion-exchange and gel-permeation chromatography was utilised to isolate TNF-like activity from the culture supernatant. The peak of TNF-like cytotoxic activity corresponded to the fractions with a nlolecular weight of 81 kDa or higher. Polyclonal anti-human TNF-a antiserum cross-reacted by Western blotting with a 17 kDa protein in the TNF-containing fraction ~ ~ n d e denaturing conditions. This result indicated that chicken TNF-like factor in the biologically active form may be a protein multimer of monomers …


Waterfowl Population Status, 1999, Khristi Wilkins, Evan G. Cooch Jul 1999

Waterfowl Population Status, 1999, Khristi Wilkins, Evan G. Cooch

United States Fish and Wildlife Service: Publications

This report summarizes the most recent information on the status of North American duck populations to facilitate development of harvest regulations in the U.S. The results in this report differ from those published in the earlier •Trends in Duck Breeding Populations, 1955-99." Because of recent changes, tables from the Trend Report, not normally included in the Status Report, will be included this year. The 1999 estimate for total ducks in the traditional survey area was 43.4 million birds, the largest population size estimated since operational surveys began in 1955. This is an increase (P<0.01) of 11% over that of 1998, and 32% higher (P<0.01) than the 1955-98 average. Mallard (Anas platyrhynchos) abundance …


July 20, 1999, The Daily Mississippian Jul 1999

July 20, 1999, The Daily Mississippian

Daily Mississippian (all digitized issues)

No abstract provided.


Habitat Use Of Leatherside Chub (Gila Copei) In The Presence Of Predatory Brown Trout (Salmo Trutta), Chris A. Walser, Mark C. Belk, Dennis K. Shiozawa Jul 1999

Habitat Use Of Leatherside Chub (Gila Copei) In The Presence Of Predatory Brown Trout (Salmo Trutta), Chris A. Walser, Mark C. Belk, Dennis K. Shiozawa

Great Basin Naturalist

The objectives of this study were to (1) examine distribution and habitat use of leatherside chub (Gila copei) in a creek with high densities of predatory brown trout (Salmo trutta), and (2) compare study results with published accounts of leatherside chub habitat use in streams with few or no brown trout. A 14-km section of Diamond Fork Creek, Utah, was point-shocked to determine macrohabitat (main channel and lateral habitat) and microhabitat (current, depth, substrate, and cover) use of leatherside chub. At the macrohabitat level, leatherside chub were most common in lower reaches of Diamond Fork Creek …


Cheek Pouch Capacities And Loading Rates Of Deer Mice (Peromyscus Maniculatus), Stephen B. Vander Wall, William S. Longland Jul 1999

Cheek Pouch Capacities And Loading Rates Of Deer Mice (Peromyscus Maniculatus), Stephen B. Vander Wall, William S. Longland

Great Basin Naturalist

Eight deer mice (Peromyscus maniculatus were attracted to bait stations in the field and filled their cheek pouches with seeds. Pouch capacity of the deer mice, which have small, internal cheek pouches, was 0.45 ± 0.11 mL, about 12–27% of that carried by similar-sized heteromyid rodents. Cheek pouches of deer mice, although small, give them the capacity to carry 3–5 times more food than unspecialized mice. This presumably increases efficiency of deer mice in exploiting small, particulate food items that are patchily distributed.


Habitat Characteristics Of Reptiles In Pinyon-Juniper Woodland, Michael L. Morrison, Linnea S. Hall Jul 1999

Habitat Characteristics Of Reptiles In Pinyon-Juniper Woodland, Michael L. Morrison, Linnea S. Hall

Great Basin Naturalist

No abstract provided.


Full Issue, Vol. 59 No. 3 Jul 1999

Full Issue, Vol. 59 No. 3

Great Basin Naturalist

No abstract provided.


Limitations On Canada Goose Production At Fish Springs National Wildlife Refuge, Dorie S. Stolley, John A. Bissonette, John A. Kadlec Jul 1999

Limitations On Canada Goose Production At Fish Springs National Wildlife Refuge, Dorie S. Stolley, John A. Bissonette, John A. Kadlec

Great Basin Naturalist

At Fish Springs National Wildlife Refuge, only 18 to 34 Canada Goose goslings were fledged per year from 1989 to 1993. In addition to the number of breeding pairs, a wide variety of variables can influence goose production, including clutch size, and nest, egg, and fledging success. We examined these variables at Fish Springs in 1996 and 1997 by finding and monitoring nests, and then following broods. We found that despite a limited number of breeding pairs on the refuge, production was further limited by poor ground nest success and low fledging success. Only 51.2% (n = 22) of …


Ecological Review And Management Recommendations For Recovery Of The Endangered Gila Topminnow, W. L. Minckley Jul 1999

Ecological Review And Management Recommendations For Recovery Of The Endangered Gila Topminnow, W. L. Minckley

Great Basin Naturalist

Ecology of the endangered Gila topminnow is reviewed, described, and reconstructed; natural conditions are placed in perspective with human-altered habitats of today. In the natural state of waxing and waning of habitat size as a function of precipitation patterns and catastrophic events such as severe winter cold, the species in the past likely underwent dramatic expansions and contractions in population size and geographic range. Today, population expansions are unlikely because of constraints imposed by human activities. The original patterns of dispersal from refugia in "good" times and retreat in "bad" times, if they are to occur, must be re-created through …


Ecology Of Flannelmouth Sucker In The Lee's Ferry Tailwater, Colorado River, Arizona, Ted Mckinney, William R. Persons, Roland S. Rogers Jul 1999

Ecology Of Flannelmouth Sucker In The Lee's Ferry Tailwater, Colorado River, Arizona, Ted Mckinney, William R. Persons, Roland S. Rogers

Great Basin Naturalist

We investigated ecology of flannelmouth sucker (Catostomus latipinnis) from 1992 to 1997 in the 26-km Lee's Ferry reach of the Colorado River immediately below Glen Canyon Dam, Arizona. We captured by electrofishing a total of 212 fish and recaptured 52 previously tagged by others. Flannelmouth sucker were captured throughout the tailwater but tended to aggregate about 5 km of the dam, possibly reflecting blockage of historic migration routes. Catch per hour of electrofishing did not differ among years but was greater from November to February than other periods, suggesting seasonal movements of flannelmouth sucker into the tailwater. Mean …


Distribution Of The Species Phrynosoma Platyrhinos In Utah, Wilmer W. Tanner Jul 1999

Distribution Of The Species Phrynosoma Platyrhinos In Utah, Wilmer W. Tanner

Great Basin Naturalist

No abstract provided.


New Records And Habitat Information For Sorex Merriami In Nebraska, Russell A. Benedict, Jay D. Druecker, Hugh H. Genoways Jul 1999

New Records And Habitat Information For Sorex Merriami In Nebraska, Russell A. Benedict, Jay D. Druecker, Hugh H. Genoways

Great Basin Naturalist

We report the collection of 8 additional specimens of Sorex merriami from northwestern Nebraska; previously only 2 specimens had been collected in the state. The new specimens were captured in pitfall traps and Sherman live-traps from 1979 through 1996 in Dawes, Sheridan, and Sioux counties. These individuals were caught together with Sorex cinereus and several rodent species in a variety of grassland habitats, including disturbed roadsides dominated by native and introduced grasses and forbs, grassland openings in forests of ponderosa pine, and an open, dry grassland. Seven of the new specimens, captured in late May, early June, and December, were …


Characteristics Of Natal And Non-Natal Kit Fox Dens In The Northern Chihuahuan Desert, Penny J. Rodrick, Nancy E. Mathews Jul 1999

Characteristics Of Natal And Non-Natal Kit Fox Dens In The Northern Chihuahuan Desert, Penny J. Rodrick, Nancy E. Mathews

Great Basin Naturalist

We studied kit fox den characteristics of the northern McGregor Range of Fort Bliss Military Reservation, New Mexico, during 1994 and 1995. Twenty radio-collared kit foxes used 132 different dens, including 16 natal dens. Kit fox dens were located primarily in creosote-dominated habitat found in relatively flat, well-drained terrain. Natal dens were virtually indistinguishable from non-natal dens; however, natal den entrances were taller than non-natal den entrances. Entrances found at all dens were oriented more frequently toward the northwest and southeast. Kit foxes used more new dens during the breeding (January–February) and pup-rearing season (May–July) than during gestation.


July 19, 1999 Reporter, University Of Alabama At Birmingham Jul 1999

July 19, 1999 Reporter, University Of Alabama At Birmingham

eReporter (campus newsletter)

No abstract provided.