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Articles 4381 - 4410 of 5010
Full-Text Articles in Life Sciences
Determination Of The Botanical And Chemical Composition Of The Pasture Diet Selected By Llamas (Lama Glama) During The Rainy Season In The Community Of Pujrata, Cristóbal Achu Nina
Determination Of The Botanical And Chemical Composition Of The Pasture Diet Selected By Llamas (Lama Glama) During The Rainy Season In The Community Of Pujrata, Cristóbal Achu Nina
Theses and Dissertations
Llamas (Lama glama) take advantage of poor natural forage (grasses and others) due to their efficient digestive physiology that is adapted for this type of forage. The problem now faced is the gradual exhaustion of the native grassland (low phytomass production). The vegetation does not cover the dry matter consumption requirements, and less so the nutrient requirements, of these animals. Because of this there is the necessity of determining the botanical composition, pasture selection by plant parts, and chemical composition of what llamas ingest in order to improve these animals' nutrition in the pasture. This study occurred at the Larqa …
Determination Of Seric Retinol Levels In Relation To Consumed Diet And The Prevalence Of Anemia In Preschool- And School-Aged Children In The Communities Of Cuambo And La Rinconada, Imbabura Province, Verónica Chávez
Theses and Dissertations
In this investigation the seric retinol levels were determined in order to relate them with consumed diets by preschool- and school-aged children and the prevalence of anemia in the communities of Cuambo and La Rinconada, Imbabura province, in order to later compare them with reference values. Blood samples were taken from 74 children from the two communities, 30 in La Rinconada and 44 in Cuambo, beneficiaries of the Benson Institute, to determine retinol, ferritin, hemoglobin, and hematocrit. Also, a 24-hour record with frequency of food consumption survey was given to the studied children's parents, making a sample of 56 families. …
Digestibility Of Legumes And Grassy Forages In Guinea Pig Feeding, Javier Americo Campos Villarroel
Digestibility Of Legumes And Grassy Forages In Guinea Pig Feeding, Javier Americo Campos Villarroel
Theses and Dissertations
With the objective to determine guinea pig digestibility of the nutritive components of Vicia villosa, red clover, and Lolium multiflorum in relation to alfalfa, the digestibility coefficients were evaluated for fiber, protein, dry matter, energy, and dry matter consumption in these three species in a completely random block design with four repetitions. The results showed that for alfalfa digestibility coefficients of 85.7% of the protein and 2806.6 kcal/kg of digestible energy, plus an economic substitution value (ESV) of fiber, protein, and energy of US$0.41 and $0.38/kg and US$0.009/1000 kcal, respectively. Lolium multiflorum had the highest tendency toward digestibility with 60.7% …
Implementacion And Strengthening Of Family Orchards For The Diversification Of The Diet And To Improve The Consumption Of Vegetables And Available Fruits In The Communities Of The Rinconada And Cuambo In The Period 2001-2002, Guido Arellano
Theses and Dissertations
The general objective of this investigation was to implement and strengthen family orchards for the diversification of the diet and improvement of the consumption of vegetables and fruits available in the communities of the Rinconada and Cuambo. They collaborated in the implementation and strengthening of the family orchards and by means of focal group techniques determined the readiness, seasonal variance, and alimentary habits of the available vegetables and fruits. They made 10 nutritive preparations in each community in participating shops with the foods that were harvested in the orchards and with the help of consistent educational material as 2 three-page …
In Situ Degradability Of Native Pastures In Llamas (Lama Glama) In The Rainy Season In The Community Of Pujrata, Pacajes Province, Mario Acho Nina
In Situ Degradability Of Native Pastures In Llamas (Lama Glama) In The Rainy Season In The Community Of Pujrata, Pacajes Province, Mario Acho Nina
Theses and Dissertations
The llama (lama glama) in the Bolivian Highlands region is a most important potential resource from the socio-economic point of view for the dedicated producer to the management and exploitation of these Andean camelids, considered as national heritage of our country. The llama is completely adapted to the high plateau system, being considered a three purposed animal in this environment: producer of fiber, meat and work (load). However, due to the expansion of sheep and cattle, they have been marginalized to the poor areas, where they prosper well because they are rustic, sober and greatly efficient in the conversion of …
Determination Of Home Techniques For Storing And Conserving Food In The Homes Of Cuambo And La Rinconada In Imbabura Province, 2001-2002, Marisol Caicedo Barrios
Determination Of Home Techniques For Storing And Conserving Food In The Homes Of Cuambo And La Rinconada In Imbabura Province, 2001-2002, Marisol Caicedo Barrios
Theses and Dissertations
In Ecuador, there is a grave socioeconomic nutritional problem, and it is seen clearest in Imbabura province in the communities of Cuambo and La Rinconada. One of the biggest problems is inadequate food, due principally to the poor food storage and conservation habits. Considering this problem, it is necessary to deepen the knowledge of improved traditional techniques for storing and conserving food, through which families can store and manage their product better, controlling and avoiding losses due to insects, rodents, and climate, and guaranteeing conservation of the same. The investigation was oriented to implement alternative, improved storage and conservation technologies …
The Effectiveness Of Consuming Fortified Foods (Api) With Iron On The Anemia Ferropriva In Resident Students To Great Altitude Of The Rural Area Of The Departemento Of La Paz, Beatriz Julia Ramirez Copa
The Effectiveness Of Consuming Fortified Foods (Api) With Iron On The Anemia Ferropriva In Resident Students To Great Altitude Of The Rural Area Of The Departemento Of La Paz, Beatriz Julia Ramirez Copa
Theses and Dissertations
In many countries, the health and the development of a great number of people are compromised by the insufficient distribution of micro-nutrients. The deficiency of iron is one of the things that to a large extent contributes to the high rates of death and maternal and childhood mortality, affecting also a great percentage of school aged children. Bolivia, along with the majority of underdeveloped countries, presents high prevalence of anemia in the students. Recent studies confirm that anemia nutrients are a problem of public health of great magnitude to rural and urban level (Fernández et al, 1994). Before this situation …
Evaluation Of Quinoa (Chenopodium Quinoa Willd) At Different Spacings Between Furrows And Plants In The Mamani Community, José Ferrufino Miranda
Evaluation Of Quinoa (Chenopodium Quinoa Willd) At Different Spacings Between Furrows And Plants In The Mamani Community, José Ferrufino Miranda
Theses and Dissertations
This study addressed spacing between furrows and plants in the cultivation of the quinoa variety Patacamaya. This study took place from 1999 to 2000 in the Mamani community, Ingavi, La Paz, Bolivia. The Patacamaya variety is a cross between Samaranti (sweet) and Kaslala (bitter), with a vegetative cycle of 145 days (semi-early). It has large grains, is sweet, and has a high grain yield. The spaces between furrows were 40, 60, and 80 cm in an experimental design of randomly divided plots with four repetitions. The spaces between furrows were implemented in large plots and the plant spaces as sub-treatments …
Design And Application Of A Nutrition Education Program Based On A Test Of Improved Practices For Pregnant Women And Women Of Childbearing Age In La Rinconada And Cuambo, Odila Nicaragua
Theses and Dissertations
This study was done with the objective of designing and applying a nutrition education program based on a test of improved practices for pregnant women and women of childbearing age in the rural communities of Ibarra canton: La Riconada and Cuambo. For this, information was collected on knowledge, attitudes, and practices (KAP) regarding the eating habits of pregnant women. These results were used to identify content and recommendations to reinforce and/or instruct about eating during pregnancy. Nutrition education was based on the methodology of the improved practices test, which consisted of testing the recommendations in families' homes before recommending them …
Evaluation Of The Production Yield In Two Guinea Pig Populations Under Field Conditions And Project Mejocuy Cages, Elbert Alan Estevez Siles
Evaluation Of The Production Yield In Two Guinea Pig Populations Under Field Conditions And Project Mejocuy Cages, Elbert Alan Estevez Siles
Theses and Dissertations
The breeding of the guinea pig in Bolivia has always been important for the inhabitants of rural areas. Nevertheless, in recent years there has been broader acceptance for consumption of the guinea pig in the urban middle class, beginning to grow the market of the meat of guinea pig in the Departamentos of Bolivia, because the good flavor and high degree of nutrition of this meat, therefore offering a good option to improve nutrition in the diet of Bolivians. Currently the type of breeding found of the valleys of Bolivia in the great majority of the communities is family-based, with …
Control Of Tomato Late Blight (Phytophthora Infestans) With Biocides On Tomatoes (Lycopersicum Sculentum) In The Community Of Carmen Pampa, Belonging To Coroico Municipality (Nor Yungas, La Paz), Rosemary Gutiérrez Coarite
Control Of Tomato Late Blight (Phytophthora Infestans) With Biocides On Tomatoes (Lycopersicum Sculentum) In The Community Of Carmen Pampa, Belonging To Coroico Municipality (Nor Yungas, La Paz), Rosemary Gutiérrez Coarite
Theses and Dissertations
In Bolivia, tomato acreage is 6717 and has a yield of 12005 kg/ha and the total production is 80,636 TM. Departments that harvest tomato are Santa Cruz, Cochabamba and La Paz, Santa Cruz being the department that shows the highest rates of production with 40653 TM in comparison with La Paz which has a production of 3109 TM and Cochabamba of 2420 TM. The principle factors in affect are, the best climatic conditions in Santa Cruz, while Cochabamba and La Paz have differences in seasonal changes (National Institute of Statistics, 1998). The importance of the tomato harvest lies in consumption …
Red Series Reference Values In Healthy People From 15 To 60 Years Old Who Live Between 1700 And 1850 Meters Above Sea Level (Coroico - Nor Yungas - La Paz, 2001), Maria Eugenia Quispe Nina
Red Series Reference Values In Healthy People From 15 To 60 Years Old Who Live Between 1700 And 1850 Meters Above Sea Level (Coroico - Nor Yungas - La Paz, 2001), Maria Eugenia Quispe Nina
Theses and Dissertations
This study occurred in the area of Coroico at 1700 meters above sea level and in the community of Carmen Pampa, situated at 1850 meters above sea level. Coroico is the capital of Nor Yungas province, department of La Paz. This study hopes to contribute information on reference values for erythrocyte numbers, hemoglobin values, and hematocrits for people between 15 and 60 years old that live between 1700 and 1850 meters above sea level, with the goal of facilitating precise diagnosing of anemia. The study used samples of healthy people, residents with more than two months in Coroico, of middle …
Vascular Cell Dysfunction And Transendothelial Migration Of Neutrophils In Preeclampsia, Courtney Elizabeth Leik
Vascular Cell Dysfunction And Transendothelial Migration Of Neutrophils In Preeclampsia, Courtney Elizabeth Leik
Theses and Dissertations
Oxidative stress, hyperlipidemia, neutrophil activation and endothelial cell dysfunction are characteristic of women with preeclampsia. We used in vitro experiments to test if a combination of oxidative stress and linoleic acid favors a mechanism for neutrophil transendothelial migration. We used linoleic acid because it is one of the fatty acids elevated in preeclampsia and the precursor for arachidonic acid and its inflammatory metabolites. For these studies, we developed a methodology for isolating and Culturing human vascular smooth muscle cells from placental chorionic plate arteries. Treatment of these cells with an oxidizing solution enriched with linoleic acid, but neither component alone, …
Comparing Clustering Algorithms For Use With Genomic And Proteomic Data, Rebecca A. Olson
Comparing Clustering Algorithms For Use With Genomic And Proteomic Data, Rebecca A. Olson
Theses and Dissertations
The Human Genome Project and related projects have resulted in the development of a number of new experimental and analytic tools for use in genomic and proteomic research. In the area of toxicogenomics, researchers are concerned with how genes react to exposure to certain chemicals. The United States Air Force is interested in the effect of exposure to mission-essential chemicals. Although military personnel may come into contact with chemicals such as hydrazine, risk assessment is usually very limited. On the genomic level, risk assessment is a multi-stop and multi-disciplinary process. The process begins with an experiment that exposes cells to …
Characterization Of The Surface Morphology Of Bacillus Spores By Atomic Force Microscopy, Ruth A. Zolock
Characterization Of The Surface Morphology Of Bacillus Spores By Atomic Force Microscopy, Ruth A. Zolock
Theses and Dissertations
The surface morphology of Bacillus spores was resolved by atomic force microscopy in order to determine if characteristic surface features could be used to distinguish between closely related species. Four strains were studied: Bacillus anthracis Sterne strain, Bacillus thuringiensis var. kurstaki, Bacillus cereus strain 569, and Bacillus globigii var. niger. The spores were separated from a nutrient agar culture by filtering and centrifugation, suspended in deionized water, and immobilized on a graphite substrate by spin-coating. Atomic force microscopy imaging was done using intermittent contact mode, in air, under reduced humidity. Seven to ten spores of each species were fully characterized …
Cell Modeling, Matthew L. Campbell
Cell Modeling, Matthew L. Campbell
Theses and Dissertations
The Air Force is currently developing new products that incorporate a variety of chemicals which may come in contact with product users. To define which chemicals are dangerous to the user, toxicity studies have been performed. However, analysis of toxicity ultimately requires models of the exposed cellular systems. This thesis provides an introduction of how to model and analyze small and large cellular systems. Understanding the underlying behavior of small models and their relation to large systems will lead to a better understanding of how the Air Force should construct intracellular models to assist in future toxicology studies. Developing analysis …
Determination Of The Protein Fraction And Presence Of Antibodies In The Seminal Fluid Of Llama (Lama Glama), Francisco Flores Lopes
Determination Of The Protein Fraction And Presence Of Antibodies In The Seminal Fluid Of Llama (Lama Glama), Francisco Flores Lopes
Theses and Dissertations
At an international level, Bolivia possesses the largest population of llamas followed by Peru. This makes our country a power, in this renewable resource, to create and generate economic development primarily for the quality of llama meat which has nutritional properties superior to other species of animals used for food. The development of the investigation of llamas in our country has not been very far-reaching. In other countries, advances have been made for quite some time, specifically in the area of reproduction, which presents problems in bringing about an intensive repopulation due to the unique characteristics of llama copulation and …
Biochemical Components Of Seminal Plasma Of Llamas (Lama Glama) At Three Ages, Pedro Angel Delgado Callisaya
Biochemical Components Of Seminal Plasma Of Llamas (Lama Glama) At Three Ages, Pedro Angel Delgado Callisaya
Theses and Dissertations
This study was conducted at the installation of the Rural Academic Unit-Tiahuanaco of the BCU, located in the community of Achaca, third municipal section of Ingavi province, department of La Paz. It is 57 km from the La Paz-Desaguadero international highway, at 68 degrees 42 minutes 28 seconds latitude South by 16 degrees 35 minutes 41 seconds longitude West, at an altitude of 3856 meters above sea level. The study went from October 2000 to September 2001. The study consisted of determining the concentrations of the biochemical components in llama seminal plasma at three ages. Components studied were glucose, inorganic …
Determination Of Protein Profile And Presence Of Antibodies In Llama Seminal Plasma (Llama Glama), Francisco Flores Lópes
Determination Of Protein Profile And Presence Of Antibodies In Llama Seminal Plasma (Llama Glama), Francisco Flores Lópes
Theses and Dissertations
Internationally, Bolivia has the largest llama population followed by Peru. This makes our country a power in this renewable resource for working and generating economic development. This is mainly because of the quality of llama meat, which has nutritional properties superior to other animal species. The development and research in our country of llamas is not very significant. But in other countries advanced studies have been done for years, specifically in the area of reproduction, which represents problems for intensive repopulation because of singular characteristics of semen and copulation. The present research work was done at the UAC in Tiahuanacu …
Analysis Of Genetic Variability Of Quinoa (Chenopodium Quinoa Wild.) Germ Plasm Around Lake Titicaca, Milton Víctor Pinto Porcel
Analysis Of Genetic Variability Of Quinoa (Chenopodium Quinoa Wild.) Germ Plasm Around Lake Titicaca, Milton Víctor Pinto Porcel
Theses and Dissertations
With the goal of analyzing the genetic variability of quinoa (Chenopodium quinoa Willd) germ plasm around Lake Titicaca, which is conserved in the National Bank of High Andean Grains of the PROINPA Altiplano Regional Foundation, the agromorphological behavior of 432 quinoa samples from the surrounding area (both Bolivian and Peruvian) were characterized and evaluated. This activity occurred at agricultural step 99/2000 of Belén Agricultural Station (16°1' South by 68°42' West), with the San Andrés Higher University Faculty of Agronomy, which because of its proximity to the lake represents climate conditions like those of the studied material's origin. In order to …
Fiber Performance And Quality Of Angora Rabbits (Oryctolagus Cuniculus) In Different Trims, Juan Jaime Blacutt Toledo
Fiber Performance And Quality Of Angora Rabbits (Oryctolagus Cuniculus) In Different Trims, Juan Jaime Blacutt Toledo
Theses and Dissertations
In 132 rabbits belonging to the Cunicola La Esperanza Farm of the city of El Alto in the department of La Paz, the principle physical characteristics of the angora rabbit fiber were determined in a period of 3 shearings. As such they were organized into 2 groups, clearly differentiated by their sex (female and male). The obtained fiber of the different shearings were weighed in order to determine the performance of each animal and subsequently analyzed the wool in the Experimental Station of Patacamaya, where they determined the diameter, length of hair and marrow composition. The results were subjected to …
Elaboration Of Noodles, Enriched With Kidney Bean In The Communities Of Cuambo And The Rinconada Of The Canton Ibarra Province Of Imbabura, Irma Meneses
Theses and Dissertations
Currently in Ecuador, the evil and deteriorated nourishment constitutes a serious problem influenced by the high to prevail of malnutrition that each day is aggravated. Therefore it is important to know the adequate utilization of the regional products and new technological alternatives that help to reduce this problem. The accomplished investigation pipe as objective to elaborate noodles craftsmen enriched with kidney bean load fine to contribute to improve the quality protein of the diet in the communities of Cuambo and the Corner; this study was effected after accomplishing a consumption and production diagnosis of foods by the Institute BENSON. The …
Formulation Of Balanced Diets In Base Of Grains Of Left-Over Of Corn, Wheat, And Barley For Guinea Pigs (Cavia Porcellus), Egresado Hever Patricio Castro Calvache
Formulation Of Balanced Diets In Base Of Grains Of Left-Over Of Corn, Wheat, And Barley For Guinea Pigs (Cavia Porcellus), Egresado Hever Patricio Castro Calvache
Theses and Dissertations
The present investigation was carried out in the rural community La Rinconada, located in the canton Ibarra of the province of Imbabura. The field work was developed during 12 months. Previous activities were developed to the rehearsal like socialization of the program; training in areas of: poscosecha of grains, alfalfa cultivation and systems of growth of guinea pigs. The rehearsal lasted 70 days and it was developed in the property of three families of the community. The formulation of diets balanced based on grains of waste of corn, wheat and barley for the growth and increment of weight of guinea …
Biochemical Components In The Secretion Of The Bulb Urethral Glands Of Llama (Lama Glama) In Three Ages, Demetrio Laruta Flores
Biochemical Components In The Secretion Of The Bulb Urethral Glands Of Llama (Lama Glama) In Three Ages, Demetrio Laruta Flores
Theses and Dissertations
The present study was performed in the Zoo-Technical Engineering department of the Tiahuanaco Rural Academic Unit of the Bolivian Catholic University. The biochemical components of the secretions produced by the bulb urethral glands of male llama that were studied are glucose, inorganic phosphorus, creatinine, total proteins, albumin, total lipids, cholesterol, and triglycerides. Spectrophotometer standardized techniques were used in nine animals of three, four, and five years of age from communities of the Ingavi province. Groups comprised of three animals each were selected by age criteria. After dissecting and separating the pelvic urethra, gland secretion was obtained by finger pressure. The …
Spacing Between Rows And Plants In Two Ecotypes Of Kanawa (Chenopodium Pallidicaule Aellen) In The Northern Highlands, Wilfredo Pablo Marín Parra
Spacing Between Rows And Plants In Two Ecotypes Of Kanawa (Chenopodium Pallidicaule Aellen) In The Northern Highlands, Wilfredo Pablo Marín Parra
Theses and Dissertations
The study "Distance between rows and plants in two ecotypes of canihua (Chenopodium pallidicaule Aellen) in the northern Altiplano" was conducted during the agricultural period of 1999-2000 in the community of Achaca, Tiahuanaco canton, Ingavi province, department of La Paz, Bolivia. It was at 3854 meters above sea level, 16°35' South latitude by 68°41' West longitude. Precipitation was 474.6 mm and the soil was a loose sandy texture. The genetic material was composed of the ecotypes of yellow Lasta, red Lasta, yellow Saihua, and red Saihua, from the Belén Experimental Station, part of the Faculty of Agronomy, San Andrés Higher …
Creation Of Three Nutritional Mixes Based On Amaranth (Amaranthus Caudatus) And Other Andean Crops For School-Aged Children (Cochabamba-Bolivia), Sandra Carola Delgadillo Barriga
Creation Of Three Nutritional Mixes Based On Amaranth (Amaranthus Caudatus) And Other Andean Crops For School-Aged Children (Cochabamba-Bolivia), Sandra Carola Delgadillo Barriga
Theses and Dissertations
In Bolivia we have three very valuable Andean grains: amaranth (Amaranthus caudatus), quinoa (Chenopodium quinua), and canihua (Chenopodium pallidicaule), which combined with cereals and legumes can become a complete and balanced food in order to combat the malnutrition that is so widespread in our region. In this study, various nutritional mixes were formulated, based on amaranth and other Andean crops, and the three best were chosen according to nutrition, palatability, and cost. They were: Andean Baby Food, Mixicereal, and Amaranth Cookie, which have an amino acid complement between 79% and 100% and give satisfactory amounts of protein, energy, and minerals …
Comprehensive Isotachophoresis-Capillary Electrophoresis Coupled To Time-Of-Flight Mass Spectrometry, Christopher Ryan Bowerbank
Comprehensive Isotachophoresis-Capillary Electrophoresis Coupled To Time-Of-Flight Mass Spectrometry, Christopher Ryan Bowerbank
Theses and Dissertations
Isotachophoresis (ITP) coupled to capillary zone electrophoresis (CE) in a comprehensive manner was used to separate mixture components in both insufficient and sufficient concentrations without heart-cutting or splitting. Examples of comprehensive ITP-CE involving multiple CE injections of preconcentrated ITP zones are demonstrated. In the comprehensive arrangement, all of the sample in the first dimension (ITP) is subjected to analysis in the second dimension (CE), without significant sample loss or decrease in sample detectability resulting from removal of a portion of the sample. This is especially important for analytes at low concentrations which may form a single mixed zone instead of …
Pilot Mental Workload Calibration, Jeremy B. Noel
Pilot Mental Workload Calibration, Jeremy B. Noel
Theses and Dissertations
Predicting high pilot mental workload is important to the U.S. Air Force because lives and aircraft can be lost when errors are made during periods of mental overload and task saturation. Current research efforts use psychophysiological measures such as electroencephalography, cardiac, ocular, and respiration measures in an attempt to identify and predict mental workload levels. The primary focus of this effort is the development of a calibration scheme that allows a small subset of salient psychophysiological features developed using actual flight data for one pilot on a given day to accurately classify pilot mental workload for a separate pilot on …
Effects On The Red-Cockaded Woodpecker From Various Spatial And Temporal Applications Of Management Practices, Chad F. Schroeder
Effects On The Red-Cockaded Woodpecker From Various Spatial And Temporal Applications Of Management Practices, Chad F. Schroeder
Theses and Dissertations
The Red-Cockaded Woodpecker (RCW) is an endangered species endemic to southeastern pine forests in the United States. RCWs are cooperative breeding birds that live together in clusters of old-growth pine trees in which they construct their nesting cavities. The cavities are constructed in living pines, which are predominantly longleaf pines. RCWs also forage upon older pines, preferably longleaf pine. The Endangered Species Act, along with other DoD regulations, requires DoD installations to protect the RCWs and restore their habitat. A popular management practice converts off-site (non-native) pines back to a region's indigenous pines. Conversion provides the best long term RCW …
Processing And Conservation Of The Grain Of Corn (Zea Mays L.) And Project Of Industrial Feasibility, Marina Caballero Bautista
Processing And Conservation Of The Grain Of Corn (Zea Mays L.) And Project Of Industrial Feasibility, Marina Caballero Bautista
Theses and Dissertations
Since Pre-Colombian time corn already formed part of the diet in Aztec and Mayan cultures, and actually represented in them a fountain of wealth and power. The cultivation is utilized in the region in multiple forms, not only for the human diet, but also as feed for animals. Corn is third place in the world production, following wheat and rice. It is cultivated in a total surface of 106 million hectares, its yield is 215 million tons, that represents an average of 2 tons per hectare. The cultivation of corn has special importance, given that this cereal constitutes the basic …