Digital Commons Network^™

Radiation Exposure Levels In Relatives Of Patients After Radioiodine Therapy, Bererhi H, Constable A. R

Sultan Qaboos University Medical Journal

Objective – To assess whether the level of radioactivity received by relatives of patients treated with radioiodine (131I) is low enough to allow the patients leave the hospital earlier, thus reducing their hospital stay. Method – Forty seven relatives of thyrotoxic patients and 23 relatives of thyroid cancer patients treated with 131I therapy were monitored for 7 days for radiation after discharging the patients at 30 MBq residual 131I. Results – The doses measured in spouses and children were less than 1 mSv except for one child who received 1.46 mSv. Conclusion – In view of the low radiation doses …

Evaluation Of Applicability Of Standard Growth Curves To Healthy Native Omani Women By Fetal Biometry At Selected Gestational Ages, Machado Ls M, Vaclavinkova V, Gibb

Sultan Qaboos University Medical Journal

Objective – To verify the applicability of standard fetal growth curves proposed for Western populations to an Omani population. Method – Ultrasound scans were performed at selected stages of gestation on 165 healthy Omani pregnant women to measure fetal growth parameters of biparietal diameter, head circumference, cephalic index, abdominal circumference and femur length. The data were compared with the commonly recommended standards of Hadlock, Campbell, Sabbagha, Wexler, Jeanty and others. Results – None of the standard charts agreed with the data in the present study except those of Sabbagha and Wexler for biparietal diameter and of Jeanty for femur length. …

Psychological Morbidity In Primary Health Care In Oman : A Preliminary Study, Al-Lawati J, Al-Lawati N, Al-Siddiqui X, Antony S., Al-Naamani A, Martin R. G, Kolbe R, Theodorsson T, Osman Y, Al-Hussaini A. A, Al-Adawi S

Sultan Qaboos University Medical Journal

Objective – To assess the prevalence of somatization and psychological morbidity presenting to primary health care in Oman and to examine the correlation between the indices of somatization and psychological disorders. Method – Consecutive primary care patients (n = 100) were screened with Bradford Somatic Inventory which gauges psychosomatic morbidity, and Self Reporting Questionnaire, which measures psychological distress. Result – Somatization disorder as defined by Bradford, and psychological morbidity were relatively common in primary care settings. There was significant positive correlation between indices of somatization and psychological morbidity. Conclusion – Omani patients seeking primary health care equally experience both psychological …

Outcome Of Pregnancy In Patients Possessing Anticardiolipin Antibodies, Al Abri S, Vaclavinkova V, Richens E.

Sultan Qaboos University Medical Journal

Objective – To analyse the outcome of pregnancy in a sample of patients with a history of fetal loss, and possessing anticardiolipin antibodies (ACAs), and to assess the effectiveness of therapy with aspirin and prednisolone. Method – Data on a cohort of 21 Arab and 4 other Asian patients who had one or more episodes of fetal loss associated with raised levels of ACAs were analysed retrospectively. Statistical analysis was performed using χ2 test for assessment of isotype data and the Fischer test for assessment of the effects of therapeutic intervention. Results –Where immunoglobulin G (IgG) ACAs were found alone, …

Microtopography Of Microbiotic Crusts On The Colorado Plateau, And Distribution Of Component Organisms, D. B. George, D. W. Davidson, K. C. Schliep, L. J. Patrell-Kim

Western North American Naturalist

We analyzed the microtopography of microbiotic soil crusts at 3 sites on the Colorado Plateau of southern Utah and investigated distributions of cyanobacteria and several lichens in distinctive microhabitats created by this topography. At all 3 sites the long axes of linear soil mounds were oriented nonrandomly in a NNW–SSE direction. The conspicuous and consistent orientation of soil mounds may result from a combination of physical and biotic processes. Subtle differences across sites in mound orientation and organismal distribution suggest that these variables may be useful in comparing disturbance histories of crusts retrospectively.

Differences in colonization frequencies, abundances, and distributions …

Facilitation Of Yucca Brevifolia Recruitment By Mojave Desert Shrubs, Steve Brittingham, Lawrence R. Walker

Western North American Naturalist

Patterns of recruitment for Yucca brevifolia (Joshua tree) were investigated on 3 elevational transects, 1000–2000 m, in the Spring and Sheep Mountain ranges of southern Nevada. Yucca brevifolia is distributed throughout a broad range of plant communities dominated by Larrea tridentata and Ambrosia dumosa at low elevations, Coleogyne ramosissima at middle elevations, and an Artemisia-Pinus-Juniperus community at upper elevations. The density of Y. brevifolia gradually increased from the lowest elevations, peaked at 1600 m, and remained at intermediate levels at high elevations until reaching an abrupt upper elevational limit at 2000 m. Open substrate dominated the study areas; however, a …

Breeding Behavior Of The Plumbeous Vireo In New Mexico, Timothy E. Demarco, Christopher B. Goguen, David R. Curson, Nancy E. Mathews

Western North American Naturalist

The Plumbeous Vireo (Vireo plumbeus) is a poorly studied songbird species that breeds within the interior western United States and Mexico. We studied the breeding behavior of Plumbeous Vireos within pinyon-juniper habitats in northeastern New Mexico in 1996 and 1997. Over both years we located and monitored 40 nests and conducted behavioral observations throughout the nesting cycle. From these observations we described and compared basic behavioral traits of male and female vireos during their nest-building, egg-laying, incubation, and nestling stages, and their response to potential predators near the nest. Male vireos displayed potential nest sites to females, but …

Response Of Wintering Buteos To Plague Epizootics In Prairie Dogs, David B. Seery, Daniel J. Matiatos

Western North American Naturalist

Several species of raptors winter at Rocky Mountain Arsenal National Wildlife Refuge (Refuge) including the Bald Eagle (Haliaeetus leucocephalus), Ferruginous Hawk (Buteo regalis), Red-tailed Hawk (Buteo jamaicensis), and Rough-legged Hawk (Buteo lagopus). Raptors were monitored each winter from 1988–89 to 1996–97 using a standardized road survey. Black-tailed prairie dogs (Cynomys ludovicianus) form a major component of the prey base for wintering raptors on the Refuge, with 1850 ha of active prairie dog towns mapped in 1988. Prairie dog town areas and population data were determined by mapping active towns and …

Status Of Descurainia Torulosa (Brassicaceae), Jerald S. Bricker, Gregory K. Brown, Tricia L. Patts Lewis

Western North American Naturalist

Descurainia torulosa was established in 1983 based on material collected in northwestern Wyoming. The species is now known from 2 disjunct populations in southwestern Wyoming, and recent collections have expanded the known distribution within the northern portion of its range. The north-south disjunct distribution and apparent habitat differences have stimulated questions concerning the degree of relatedness between the disjunct elements to the point that the southern populations have been suggested to be a distinct taxon. Recognition of D. torulosa as a distinct species has also been questioned. This paper is based on field examination of D. torulosa populations, study of …

Oreohelices Of Utah, I. Rediscovery Of The Uinta Mountainsnail, Oreohelix Eurekensis Uinta Brooks, 1939 (Stylommatophora: Oreohelicidae), George V. Oliver, William R. Bosworth Iii

Western North American Naturalist

Oreohelix eurekensis uinta had not been found since its original discovery and had never been reported as a living taxon, and this had led to speculation that it is extinct. However, searches for O. e. uinta had been confounded by multiple errors in the original definition of the type locality. The type locality has now been relocated and is here redefined, and O. e. uinta is reported for the 1st time as a living taxon. Although the holotype has been lost, existing specimens believed to be paratypes have been examined, and correction of errors in the literature concerning its size …

C3 And C4 Species Changes Identified By Δ13C Values Of Soil Organic Matter In A Colorado Prairie, Penelope Sinton, Tim Seastedt, Barry Bennett, Carl Bock, Jane Bock

Western North American Naturalist

We measured carbon isotope signatures (δ¹³C) from 0–10 cm and 10–20 cm soil depth intervals for grassland soils near Boulder, Colorado. These grasslands included tall-, short-, and mixed-grass prairies that were grazed, ungrazed, or hayed. Soils exhibited δ¹³C signatures consistent with observations that current sites are a mix of C₃ and C₄ species, with C₃ plants more abundant in mixed-grass than in native tall- or shortgrass prairies. The δ¹³C signatures were not significantly different for grassland types; however, management treatments (grazing, no grazing, haying) significantly influenced changes in soil δ^{13 …}

Singing Stone, A Natural History Of The Escalante Canyons By Thomas Lowe Fleischner, C. Riley Nelson

Western North American Naturalist

No abstract provided.

Index [And Table Of Contents] To Volume 60

Western North American Naturalist

No abstract provided.

Front Matter, Vol. 60 No. 4

Western North American Naturalist

No abstract provided.

End Matter, Vol. 60 No. 4

Western North American Naturalist

No abstract provided.

Ddasaccident328, Hd-Aid

Global CWD Repository

The Section Commander was not looking at the Supervisor at the time of the accident and couldn’t witness the accident. When he turned around, he saw that [the Victim] was in the uncleared area, between the two rows of mines. The Section Commander called for assistance. The mine involved in the accident was a blast anti-personnel mine type PMA-2.

Variability Among Five Riparian Cottonwood (Populus Fremontii Wats.) Populations: An Examination Of Size, Density, And Spatial Distribution, Diane L. Rowland, Beth Biagini, Ann S. Evans

Western North American Naturalist

Various abiotic and biotic factors are known to affect tree size, including age, genetics, and environment. Knowledge of size variation within natural riparian tree populations has both ecological and restorative importance. We determined tree sizes, basal area densities, and spatial distributions of 5 Populus fremontii Wats. populations within the Rio Grande watershed in New Mexico. At each site 10 randomly spaced plots, perpendicular to the river and extending from the river to the end of the forest, were established. Diameter at breast height (DBH) and distance to the river were determined for 1803 trees within the 5 populations, and stand …

Executive Committee - Meeting Minutes, 10/31/2000, Academic Senate

Academic Senate Minutes

No abstract provided.

Practical Proof Of The Validity Of The Target Theory By Simulating Cellular Targets, Salih F. M

Sultan Qaboos University Medical Journal

Objective – To practically prove the validity of the target theory as a mathematical model to describe and understand themechanisms involved in cell killing by ionising radiation. Method – Experimental validation of the target theory was attempted using Bacillus megaterium spores. Sets of 100 vials containing averages of 1, 2, 5, 50 and 500 spores per vial was exposed to varying gamma radiation doses in presence (oxic) and absence (anoxic) of oxygen (O2). The percentage of the vials that exhibited bacterial growth after 6 days of incubation was taken as containing one spore or more, which survived a given dose. …

Executive Committee - Agenda, 10/31/2000, Academic Senate

Academic Senate Agendas

No abstract provided.

Montana Kaimin, October 31, 2000, Associated Students Of The University Of Montana

Montana Kaimin, 1898-present

Student newspaper of the University of Montana, Missoula.

Geographic Distribution, Morphological And Molecular Characterization, And Relationships Of Lathrocasis Tenerrima (Polemoniaceae), Leigh A. Johnson, Terri L. Weese

Western North American Naturalist

Lathrocasis is a recently recognized genus of Polemoniaceae that circumscribes the species first named Gilia tenerrima A. Gray. This species, distributed primarily in the Great Basin and Rocky Mountain floristic regions, has previously escaped thorough taxonomic scrutiny. Surveys of herbarium specimens and living material show that some features of this species have been inaccurately characterized in the past, while other characteristics have not been previously considered in assessing its relationships. Lathrocasis possesses a distinct suite of morphological features that, considered as a whole, distinguish this taxon at the generic level. This suite of characters includes the mostly entire, nonmucronate leaves, …

10-31-00 (The Liberty Champion, Volume 18, Issue 8)

2000 -- 2001

No abstract provided.

Recognition Of Left Atrial Aneurysm By Fetal Echocardiography., R R. Fountain-Dommer, H B. Wiles, C O. Shuler, S M. Bradley, Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

No abstract provided.

Breeding Ecology Of White-Faced Ibis (Pleagadis Chihi) In The Upper Klamath Basin, California, Michael R. Taft, David M. Mauser, Todd W. Arnold

Western North American Naturalist

The White-faced Ibis (Plegadis chihi) is a California state and U.S. Fish and Wildlife Service species of special management concern. We studied White-faced Ibis breeding ecology from May through July 1995 on Lower Klamath National Wildlife Refuge (NWR) in the upper Klamath Basin of California. A total of 2029 pairs nested in 3 colonies exclusively in early-successional hardstem bulrush (Scirpus acutus). Nest initiation dates ranged from 10 May to 12 June, and mean clutch size was 3.16. Reproductive success averaged 87% apparent nest success (n = 115), 82% hatchability, 97% whole and partial brood survival, …

Algae Of Devils Hole, Nevada, Death Valley National Park, William D. Shepard, Dean W. Blinn, Ray J. Hoffman, Paul T. Kantz

Western North American Naturalist

We examined algal flora in the aquatic system of Devils Hole, Nevada. The water is seasonally warm, near neutral in pH, and rich in dissolved carbonate, indicative of deeply circulating groundwater flowing through carbonate rock. Most algae were benthic, with only a few planktonic representatives. Eighty-four terminal identifications in 44 genera were recorded, with diatoms and blue-green algae the most speciose groups. Diatoms were major contributors to the grazing food web. Large, mat-forming filamentous algae have an important influence on the physicochemical and general structure of the benthic substrates in Devils Hole.

Full Issue, Vol. 60 No. 4

Western North American Naturalist

No abstract provided.

Ecological Impacts Of Seed Harvester Ants On Soil Attributes In A Larrea-Dominated Shrubland, Simon A. Lei

Western North American Naturalist

The influence of seed harvester ant (Pogonomyrmex rugosus) colonies on soil properties and soil surface and moisture characteristics was investigated through comparison of adjacent, nonnest (reference, 4 m beyond ant colony) areas in Las Vegas, Nevada. Effects of ant colonies on both terrace and slope sites were investigated. Soil moisture content and soil bulk density in a creosote bush (Larrea tridentata)–dominated shrubland were significantly lower, while soil temperature, soil organic matter, and percent pore space were significantly higher in soils with ant nests relative to adjacent reference soils. Soil pH and texture did not differ significantly …

A Confirmed Record Of The Ephemeroptera Genus Baetisca From West Of The Continental Divide And An Annotated List Of The Mayflies Of The Humboldt River, Nevada, Richard W. Baumann, Boris C. Kondratieff

Western North American Naturalist

No abstract provided.

Egg Mass Deposition By Arizona Toads, Bufo Microscaphus, Along A Narrow Canyon Stream, Andrew Dahl, Michael P. Donovan, Terry D. Schwaner

Western North American Naturalist

No abstract provided.