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Brigham Young University

1997

Articles 1 - 16 of 16

Full-Text Articles in Life Sciences

A Fluid In Contact With A Semipermeable Surface: Second-Order Integral Equation Approach, Douglas Henderson, Pawel Bryk, Stefan Sokolowski Aug 1997

A Fluid In Contact With A Semipermeable Surface: Second-Order Integral Equation Approach, Douglas Henderson, Pawel Bryk, Stefan Sokolowski

Faculty Publications

An integral equation approach for a binary hard-sphere mixture interacting with a planar semipermeable wall (membrane) is formulated by using the second-order nonuniform or pair Ornstein–Zernike equation as well as the usual singlet Ornstein–Zernike equation. The results of the pair theory are compared with those obtained from the singlet theory and with computer simulation data. The pair approach is more accurate than the singlet theory.

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Grand Canonical Monte Carlo And Modified Singlet Integral Equations For The Density Profile Of A Yukawa Fluid Near A Planar Wall, Douglas Henderson, Wilmer Olivares-Rivas, Leo Degreve, Jacqueline Quintana May 1997

Grand Canonical Monte Carlo And Modified Singlet Integral Equations For The Density Profile Of A Yukawa Fluid Near A Planar Wall, Douglas Henderson, Wilmer Olivares-Rivas, Leo Degreve, Jacqueline Quintana

Faculty Publications

Results for the density profile for Yukawa molecules near a hard wall and an exponential attractive wall are presented for Grand Canonical Monte Carlo (GCMC) simulations, for the singlet hypernetted chain (HNC) integral equation and for a modified version of the Lovett–Mou–Buff–Wertheim (LMBW-1) which uses the exact contact value theorem. The results of the standard singlet HNC are quite poor. If the LMBW equation is modified (but still using the bulk direct correlation function) the results at high temperature become reasonable. However, the results at low temperatures, close to the bulk coexistence curve, are only a partial improvement. The contact …

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Density, Distribution, And Habitat Of Flammulated Owls In Idaho, Craig Groves, Terry Frederick, Glenn Frederick, Eric Atkinson, Melonie Atkinson, Jay Shepherd, Gregg Servheen May 1997

Density, Distribution, And Habitat Of Flammulated Owls In Idaho, Craig Groves, Terry Frederick, Glenn Frederick, Eric Atkinson, Melonie Atkinson, Jay Shepherd, Gregg Servheen

Great Basin Naturalist

From 1990 to 1992 we surveyed for Flammulated Owls (Otus flammeolus) in 3 areas in Idaho: Salmon National Forest (SNF), Payette National Forest and adjacent Hells Canyon National Recreation Area (PNF-HCNRA), and Nez Perce National Forest (NPNF). We also collected and summarized information on all historic and modern records of Flammulated Owls in Idaho. Flammulated Owls were detected on 65% of 68 routes (2–16 km in length) surveyed at densities ranging from 0.04 to 1.25 singing males/40 ha. Owls were detected on survey routes as early as 10 May and as late as 23 July. Mean percent canopy …

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Diplostomiasis In Native And Introduced Fishes From Yellowstone Lake, Wyoming, Victor H. Inchausty, Michael Foutz, Richard A. Heckmann, Claudete Ruas, Paulo Ruas May 1997

Diplostomiasis In Native And Introduced Fishes From Yellowstone Lake, Wyoming, Victor H. Inchausty, Michael Foutz, Richard A. Heckmann, Claudete Ruas, Paulo Ruas

Great Basin Naturalist

Totals of 101 native Yellowstone cutthroat (Oncorhynchus clarki bouvieri), 27 introduced lake trout (Salvelinus namaycush), and 40 introduced longnose sucker (Catostomus catostomus) from Yellowstone Lake, Wyoming, USA, were examined for eye flukes. Metacercariae of the trematode fluke Diplostomum were in vitreous humor and/or lens of 94% of Yellowstone cutthroat trout, 92% of lake trout, and 78% of longnose sucker. Longnose sucker had 7% prevalence of infection in both lens and vitreous humor of metacercariae, while Yellowstone cutthroat trout had 3% and lake trout 8%. Diplostomum spathaceum was in lens tissue of 5% of infected …

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Natural Variability Of Vegetation, Soils, And Physiography In The Bristlecone Pine Forest Of The Rocky Mountains, Brigitte M. Ranne, William L. Baker, Tom Andrews, Michael G. Ryan Mar 1997

Natural Variability Of Vegetation, Soils, And Physiography In The Bristlecone Pine Forest Of The Rocky Mountains, Brigitte M. Ranne, William L. Baker, Tom Andrews, Michael G. Ryan

Great Basin Naturalist

Pinus aristata Engelm. forest vegetation in Colorado was studied to determine vegetation composition and the relationship between vegetation and environment. Species percent cover, tree size class, and environmental variables were recorded for 49 plots. Previously collected data for 4 plots from New Mexico were included. Environmental variables included latitude, longitude, elevation, slope, aspect, topographic position, parent material, percent rock cover, mean rock size, litter depth, estimated plot age class, and evidence of anthropogenic disturbance. Soils were analyzed for texture, depth, and percent carbon and nitrogen. Pinus aristata foliage was analyzed for percent nitrogen and phosphorus. Direct and indirect gradient analyses …

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The Nutritional Characterization Of The Carob Tree In The Department Of Cochabamba, Karem Khaterine Loma Mercado Jan 1997

The Nutritional Characterization Of The Carob Tree In The Department Of Cochabamba, Karem Khaterine Loma Mercado

Theses and Dissertations

The nutritional value for the following species have been determined: P.pallida, P.laevigata var. andicola, P.flexuosa, P.nigra, P.alba of the genus Proposis. To obtain this purpose surveys were done about the use and consumption of the Carob Tree in the High and Central Valleys of the Cochabamba Department. As a result of the surveys it was determined that the consumption of the pods made up for 54% of human nourishment. The species that were consumed the most were P.pallida and P.laevigata var. andicola. Within the uses of these leguminous pods, the pods are directly consumed in their raw form and on …

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Food And Nutrition Situation In The Villa Santa Chacoma, Hancara, Hichuraya Grande And Pan De Azucar Communities Of The Ingavi Province In The Department Of La Paz, Bolivia 1996, Teresa Beatriz Iglesias Sandoval Jan 1997

Food And Nutrition Situation In The Villa Santa Chacoma, Hancara, Hichuraya Grande And Pan De Azucar Communities Of The Ingavi Province In The Department Of La Paz, Bolivia 1996, Teresa Beatriz Iglesias Sandoval

Theses and Dissertations

A diagnosis of the Food and Nutrition situation was made of the populations of the communities of Villa Santa Chacoma, Hancara, Hichuraya Grande and Pan de Azúcar, pertaining to the Ingavi province of the La Paz department. The principle objective was to: identify the Nutritional Food Situation of these communities, the secondary objectives were to: Identify the nutritional state of the inhabitants of the communities, identify the physical availability of food, identify the habits of breastfeeding and supplementary feeding, identify the level of ingestion, establish the consumption of food and identify the level of education of householders; to these ends …

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Diagnosis Of Livestock Production In Three Communities (La Inmaculada, Tunshi San Miguel, And Ela Guano) Using The Chambo Irrigation System - Guano, Egresado José Orozco Cruz Jan 1997

Diagnosis Of Livestock Production In Three Communities (La Inmaculada, Tunshi San Miguel, And Ela Guano) Using The Chambo Irrigation System - Guano, Egresado José Orozco Cruz

Theses and Dissertations

The purpose of this research was to implement a stratifying sampling system in the communities of La Inmaculada, Tunshi San Miguel, and Ela Guano, part of the Chambo-Guano irrigation system. The domesticated animal population in these communities consisted of cattle, sheep, swine, guinea pigs, and poultry. The animal feed used in these communities included alfalfa, grass, corn stalks, banana, weeds, kitchen residue, hulk, hard and soft corn, barley, wheat and other feed preparations. In general, animal management in these communities is technically deficient and most animals exhibited diseases that are controllable by veterinarians. Study recommendations to improve conditions for rural …

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Nutritional Situation Of The Communities Pan De Azucar, Hancara, Villa Santa Chacoma And Hichuraya Grande, Department Of La Paz, Ingavi Province, Bolivia 1996, Teresa Beatriz Iglesias Sandoval Jan 1997

Nutritional Situation Of The Communities Pan De Azucar, Hancara, Villa Santa Chacoma And Hichuraya Grande, Department Of La Paz, Ingavi Province, Bolivia 1996, Teresa Beatriz Iglesias Sandoval

Theses and Dissertations

The present research work is a transverse and descriptive study, which had as its principal objective to determine the Food and Nutritional Situation of the communities of Villa Santa Chacoma, Hancara, Hichuraya Grande and Pan de Azucar of the Ingavi province of the department of the La Paz. The most relevant part of the study was in finding the elevated percentage of infant population that presents an elevated prevalence and different levels of malnutrition. In adults what calls the attention is the physical exhaustion and the loss of muscle tissue, this situation was seen as a consequence of poverty, food …

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Determination Of The Presence Of Antibiotics And Bacterial Pathogens With Their Susceptibility In Fresh Milk From The San Nicolas Community And The Cities Of Penipe, Guano, And Chambo In The Chimborazo Province, Lupe Marín Jan 1997

Determination Of The Presence Of Antibiotics And Bacterial Pathogens With Their Susceptibility In Fresh Milk From The San Nicolas Community And The Cities Of Penipe, Guano, And Chambo In The Chimborazo Province, Lupe Marín

Theses and Dissertations

This study is entitled, “determination of the presence of antibiotics and bacterial pathogens with their susceptibility in fresh milk from the San Nicolas community and the cities of Penipe, Guano, and Chambo in the Chimborazo province”. It was funded by the Benson Institute of Brigham Young University and Nestle. The objectives were: 1) to determine the presence of antibiotics in fresh milk from the San Nicolas community and the cities of Penipe, Guano, and Chambo, 2) to determine the presence of bacterial pathogens in milk from the places previously mentioned, and 3) to detect the susceptibility of the isolated bacteria …

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Nutritional And Food Situation Of Five Communities Of Canaviri, Colina Blanca, Villa Arriendo, Puente Arriba And Pocohata, Department Of La Paz, Bolivia, Juana F. Moraima Gonzáles Tapia Jan 1997

Nutritional And Food Situation Of Five Communities Of Canaviri, Colina Blanca, Villa Arriendo, Puente Arriba And Pocohata, Department Of La Paz, Bolivia, Juana F. Moraima Gonzáles Tapia

Theses and Dissertations

The following work seeks to address the necessity that the inhabitants of the impoverished regions in Bolivia experience, as is the case of the highland region of Paceno, which is the understanding of their nutritional and alimentary situation. We studied the communities of Canavari, Pocohata, Colina Blanca, Puente Arriba, and Villa Arriendo de la Provincia Ingavi, in the province of la Paz.
The studied variable was the nutritional sta te, having as parameters: physical and economical availability of the food, food consumption, nutritional habits, biological usage of the food, basic sanitary conditions, and the educationallevel of the heads of family. …

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Vitamin A Content In Preparations Of Plant Foods With The Highest Consumption In The Beneficiary Communities Of The Benson Institute, Ana Luisa Méndez Hernández Jan 1997

Vitamin A Content In Preparations Of Plant Foods With The Highest Consumption In The Beneficiary Communities Of The Benson Institute, Ana Luisa Méndez Hernández

Theses and Dissertations

One of the main nutrient deficiencies in Guatemala is vitamin A, mainly in pregnant women and children under the age of five. The consumption of plant material can improve vitamin A ingestion levels. It is necessary to research consumption frequency and preparation methods of the most commonly available plant materials, as well as the vitamin A content of these plant materials. This research took place in San Juan Ermita, Chiquimula in the communities of Chancó, Corral de Piedra, and Salitrón. The results demonstrated that the most commonly consumed plant material preparations were mulberry soup, chatate soup, toasted maize soup, chipilin …

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Diagnosis Of Livestock Production In Three Communities (Tunshi San Javier, San Antonio And Maria Auxiliadora) Using The Chambo Irrigation System - Guano, Egresado ÁNgel Montalvo Silva Jan 1997

Diagnosis Of Livestock Production In Three Communities (Tunshi San Javier, San Antonio And Maria Auxiliadora) Using The Chambo Irrigation System - Guano, Egresado ÁNgel Montalvo Silva

Theses and Dissertations

During 43 weeks three communities belonging to the Chambo-Guano irrigation system (María Auxiliadora, San Antonio, and Tunshi San Javier) were studied. Each family had 0.662 ± 0.149 producing cows, 0.115 ± 0.048 dry cows, 0.381 ± 0.095 heifers, 0.252 ± 0.068 young bulls, 0.158 ± 0.052 bulls, and 0.568 ± 0.096 calves. The age at first mounting (21.696 ± 9.28 months) showed that the cows enter reproduction late. Of the cows, 71.94 ± 5.26% were of household varieties. To feed them, alfalfa was used at 79.86 ± 4.5%, undergrowth 56.83 ± 5.62%, corn stalks 48.2 ± 6.02%, kikuyu 19.42 ± …

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Processing And Conservation Of The Little Corn In Aiquile Province In The Cochabamba Department: Use Of Antioxidants, Organic And Industrial Evaluation, Saul Victor Miranda Fernandez Jan 1997

Processing And Conservation Of The Little Corn In Aiquile Province In The Cochabamba Department: Use Of Antioxidants, Organic And Industrial Evaluation, Saul Victor Miranda Fernandez

Theses and Dissertations

The present work was conducted in order to determine an adequate variety in the processing of small corn, in which a monitoring of all the cycle in cultivation was conducted. The behavior of the small corn was analyzed in the laboratory before the presence of three antioxidants, ascorbic acid, acetic acid and sodium sulfate in two concentrations in addition to subjecting them to thermal treatments that allows us to obtain a pleasant product for the consumer that is both resistant to treatment and nutritious for the health. The results indicate that the best variety of corn is muruchi yellow, the …

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Study Of Livestock Production Levels In Three Communities Near The City Of Riobamba, Raul Rolando Nuñez Lopez Jan 1997

Study Of Livestock Production Levels In Three Communities Near The City Of Riobamba, Raul Rolando Nuñez Lopez

Theses and Dissertations

This study was done by administering household surveys to 50% of the families in the three communities. Families were selected through stratified random sampling. This allowed us to determine how much families are exploiting species that have a significant level of production as well as whether they use them for a commercial activity or subsistence. With regard to cows, 60.40 ± 4.72% of families use them. Each family has an average of 1.68 ± 0.21 cows. Productive cows make up 36.9% of the above percentage, which is a majority. The measured rate of production was 6.48 ± 0.25 L/cow/day. Overall, …

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Tests On The Elaboration Of Soybean Milk, Derivatives, And Industrial Feasibility Project, Ciro Pablo Kopp Valdivia Jan 1997

Tests On The Elaboration Of Soybean Milk, Derivatives, And Industrial Feasibility Project, Ciro Pablo Kopp Valdivia

Theses and Dissertations

This work was done with the purpose of evaluating different forms of soybean milk processing, the product acceptance by the public, and to do a study on the feasibility for the production of milk at a small scale to be used as a nutritional supplement in school breakfasts. The soybean milk was prepared with 2 varieties "(Cristalina and Doko)" and two periods of enzymatic inactivation (Before and After) of the grain mush. The "organoleptic" quality was evaluated through surveys and its posterior statistical analysis. Parameter quality was also considered just as did the microbiologic analysis and the conservation tests. The …

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