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Search Results: 1 - 10 of 9970 matches for " Patricia;Monroy "
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Nuevos registros del tepezcuintle (Agouti paca) para el norte del estado de Oaxaca, México New records of the tepezcuintle (Agouti paca) in the north of Oaxaca state, Mexico
Francisco Botello,Patricia Illoldi,Miguel Linaje,Gabriela Monroy
Revista mexicana de biodiversidad , 2005,
Abstract: Mediante fototrampas se obtuvieron dos nuevos registros del tepezcuintle (Agouti paca) en el norte de Oaxaca, en Julio de 2004, con los cuales se amplia el rango aproximadamente 60 km al oeste de la distribución anteriormente propuesta para esta especie. Using camera-traps in July 2004, two new records of the tepezcuintle (Agouti paca) were obtained in the north of the state of Oaxaca, Mexico. This records widen the distributional range approximately 60 km west of the previous distribution proposed for this species.
Nuevos registros del ?tepezcuintle? (Agouti paca) para el norte del estado de Oaxaca, México
Botello, Francisco;Illoldi, Patricia;Linaje, Miguel;Monroy, Gabriela;Sánchez-Cordero, Víctor;
Revista mexicana de biodiversidad , 2005,
Abstract: using camera-traps in july 2004, two new records of the tepezcuintle (agouti paca) were obtained in the north of the state of oaxaca, mexico. this records widen the distributional range approximately 60 km west of the previous distribution proposed for this species.
Sistematización de imágenes obtenidas por fototrampeo: una propuesta de ficha Systematic images from camera-traps: a proposal of data card
Francisco Botello,Gabriela Monroy,Patricia Illoldi-Rangel,Ivan Trujillo-Bolio
Revista mexicana de biodiversidad , 2007,
Abstract: Las colecciones científicas desempe an un papel fundamental en la acumulación del conocimiento biológico. Recientemente, el uso de fototrampas para realizar inventarios y estudios ecológicos en mamíferos se ha incrementando notablemente. Sin embargo, la información básica asociada a las imágenes no se ha organizado de manera formal y sistemática, como en el caso de los especímenes en una colección científica. Aquí, se propone un formato para producir fichas digitales de fotocolecta en donde la imagen de la especie fotografiada esté asociada a la misma información básica que se registra en una colecta tradicional, lo que permitirá que éstas sean fácilmente incluidas en colecciones científicas, con lo que se documentará la información disponible proveniente de todos aquellos sitios que actualmente estén monitoreándose mediante este método. The main objective of biological collections is to accumulate biological data. The use of camera-traps for inventories and ecological studies of mammals has shown a noteworthy recent increase. However, the basic information associated with the images is not organized in a formal or systematic way, like the specimens of a scientific collection. Here, we propose a format to produce digital photosampling cards where the image of the photographed species is associated with the same basic information that is recorded for a traditional sample; in this way, they can be easily inorporated in scientific collections, thus documenting the available information for the sites that are sampled by this method.
Hunting, Swimming, and Worshiping: Human Cultural Practices Illuminate the Blood Meal Sources of Cave Dwelling Chagas Vectors (Triatoma dimidiata) in Guatemala and Belize
Lori Stevens ,M. Carlota Monroy,Antonieta Guadalupe Rodas,Patricia L. Dorn
PLOS Neglected Tropical Diseases , 2014, DOI: 10.1371/journal.pntd.0003047
Abstract: Background Triatoma dimidiata, currently the major Central American vector of Trypanosoma cruzi, the parasite that causes Chagas disease, inhabits caves throughout the region. This research investigates the possibility that cave dwelling T. dimidiata might transmit the parasite to humans and links the blood meal sources of cave vectors to cultural practices that differ among locations. Methodology/Principal Findings We determined the blood meal sources of twenty-four T. dimidiata collected from two locations in Guatemala and one in Belize where human interactions with the caves differ. Blood meal sources were determined by cloning and sequencing PCR products amplified from DNA extracted from the vector abdomen using primers specific for the vertebrate 12S mitochondrial gene. The blood meal sources were inferred by ≥99% identity with published sequences. We found 70% of cave-collected T. dimidiata positive for human DNA. The vectors had fed on 10 additional vertebrates with a variety of relationships to humans, including companion animal (dog), food animals (pig, sheep/goat), wild animals (duck, two bat, two opossum species) and commensal animals (mouse, rat). Vectors from all locations fed on humans and commensal animals. The blood meal sources differ among locations, as well as the likelihood of feeding on dog and food animals. Vectors from one location were tested for T. cruzi infection, and 30% (3/10) tested positive, including two positive for human blood meals. Conclusions/Significance Cave dwelling Chagas disease vectors feed on humans and commensal animals as well as dog, food animals and wild animals. Blood meal sources were related to human uses of the caves. We caution that just as T. dimidiata in caves may pose an epidemiological risk, there may be other situations where risk is thought to be minimal, but is not.
The number of families of Triatoma dimidiata in a Guatemalan house
Melgar, Sergio;Chávez, Juan José;Landaverde, Patricia;Herrera, Franklin;Rodas, Antonieta;Enríquez, Eunice;Dorn, Patricia;Monroy, Carlota;
Memórias do Instituto Oswaldo Cruz , 2007, DOI: 10.1590/S0074-02762007005000001
Abstract: triatoma dimidiata is an important vector of chagas disease in guatemala. to help understand the biology and population dynamics of the insect, we estimated the number of full sibling families living in one house. forty one families with an average size of 2.17 individuals were detected using random amplification of polymorphic dna-polymerase chain reaction genetic markers. this result suggests high levels of migration of the vector, polyandry, and a significant capability for spreading the disease.
Airborne Laser Scanning Quantification of Disturbances from Hurricanes and Lightning Strikes to Mangrove Forests in Everglades National Park, USA
Keqi Zhang,Marc Simard,Michael Ross,Victor H. Rivera-Monroy,Patricia Houle,Pablo Ruiz,Robert R. Twilley,Kevin Whelan
Sensors , 2008, DOI: 10.3390/s8042262
Abstract: Airborne light detection and ranging (LIDAR) measurements derived before and after Hurricanes Katrina and Wilma (2005) were used to quantify the impact of hurricanes and lightning strikes on the mangrove forest at two sites in Everglades National Park (ENP). Analysis of LIDAR measurements covering 61 and 68 ha areas of mangrove forest at the Shark River and Broad River sites showed that the proportion of high tree canopy detected by the LIDAR after the 2005 hurricane season decreased significantly due to defoliation and breakage of branches and trunks, while the proportion of low canopy and the ground increased drastically. Tall mangrove forests distant from tidal creeks suffered more damage than lower mangrove forests adjacent to the tidal creeks. The hurricanes created numerous canopy gaps, and the number of gaps per square kilometer increased from about 400~500 to 4000 after Katrina and Wilma. The total area of gaps in the forest increased from about 1~2% of the total forest area to 12%. The relative contribution of hurricanes to mangrove forest disturbance in ENP is at least 2 times more than that from lightning strikes. However, hurricanes and lightning strikes disturb the mangrove forest in a related way. Most seedlings in lightning gaps survived the hurricane impact due to the protection of trees surrounding the gaps, and therefore provide an important resource for forest recovery after the hurricane. This research demonstrated that LIDAR is an effective remote sensing tool to quantify the effects of disturbances such as hurricanes and lightning strikes in the mangrove forest.
Cambios en algunas variables hematológicas, en un grupo de mujeres mayores de 55 a?os, luego de un programa de entrenamiento aeróbico
PéREZ G.,JAIME ALBERTO; MONROY DE PE?A,ALCIRA; DíAZ H.,DIANA PATRICIA; FLóREZ MANRIQUE,RUBIELA;
Iatreia , 2003,
Abstract: objective: to evaluate changes in some hematologic variables after a four-month program of aerobic physical activity, in a group of healthy women, older than 55 years. methods: 14 healthy sedentary women, older than 55 years were studied; they participated in a program of aerobic physical activity, three times per week, during four months, with an intensity between 60-85% of the maximal heart rate and with 60 minutes of duration per session. before and after the program blood specimens were obtained to evaluate changes of hemoglobin, hematocrite, red blood cells count, average corpuscular volume, average corpuscular hemoglobin, and average concentration of corpuscular hemoglobin; by means of a maximal test in treadmill the maximal oxygen uptake (vo2max) was determined. results: significant increase was found in hemoglobin (p<0.01), hematocrite (p<0.001), average corpuscular volume (p<0.001), average corpuscular hemoglobin (p<0.01) and vo2max (p<0.05). there were no changes in red blood cell count and average concentration of corpuscular hemoglobin. conclusion: in the studied group, a program of regular physical activity, with an intensity between 60-85% of the maximal heart rate, increased hemoglobin and hematocrite. this results suggest that aerobic training increases the transport of oxygen to tissues.
Sistematización de imágenes obtenidas por fototrampeo: una propuesta de ficha
Botello, Francisco;Monroy, Gabriela;Illoldi-Rangel, Patricia;Trujillo-Bolio, Ivan;Sánchez-Cordero, Víctor;
Revista mexicana de biodiversidad , 2007,
Abstract: the main objective of biological collections is to accumulate biological data. the use of camera-traps for inventories and ecological studies of mammals has shown a noteworthy recent increase. however, the basic information associated with the images is not organized in a formal or systematic way, like the specimens of a scientific collection. here, we propose a format to produce digital photosampling cards where the image of the photographed species is associated with the same basic information that is recorded for a traditional sample; in this way, they can be easily inorporated in scientific collections, thus documenting the available information for the sites that are sampled by this method.
Cambios en algunas variables hematológicas, en un grupo de mujeres mayores de 55 a os, luego de un programa de entrenamiento aeróbico Changes in some hematologic variables in a group of women older tan 55 years, after a program of aerobic training
Jaime Alberto Pérez Giraldo,Alcira Monroy de Pe?a,Diana Patricia Díaz Hernández,Rubiela Flórez Manrique
Iatreia , 2003,
Abstract: Objetivo: determinar los cambios en algunas variables hematológicas luego de un programa de actividad física aeróbica, por un período de cuatro meses, en un grupo de mujeres sedentarias sanas mayores de 55 a os. Método: se estudiaron 14 mujeres mayores de 55 a os, sedentarias, sanas, a quienes se les realizó un programa de actividad física aeróbica tres días a la semana, durante cuatro meses consecutivos, con una intensidad entre el 60 y el 85% de la FCmax y una duración de 60 minutos. Antes y después del programa de actividad física se obtuvieron muestras de sangre para evaluar el comportamiento de la hemoglobina (Hb), el hematocrito (Hct), el recuento de glóbulos rojos, el volumen corpuscular medio (VCM), la hemoglobina corpuscular media (HCM) y la concentración de hemoglobina corpuscular media (CHCM); mediante una prueba máxima, se realizó la medición del consumo máximo de oxígeno (VO2max). Resultados: se observó un incremento estadísticamente significativo de la Hb (p<0.01), el Hct (p<0.01), el VCM (p<0.001), la HCM (p<0.001) y el VO2max (p<0.05). No hubo cambio en el recuento de glóbulos rojos ni en la CHCM. Conclusión: un programa de actividad física regular, a intensidades entre el 60 y el 85% de la frecuencia cardíaca máxima, en la población estudiada, incrementó los valores de la hemoglobina y del hematocrito, lo que sugiere que el entrenamiento aeróbico mejora el aporte de oxígeno hacia los tejidos. Objective: to evaluate changes in some hematologic variables after a four-month program of aerobic physical activity, in a group of healthy women, older than 55 years. Methods: 14 healthy sedentary women, older than 55 years were studied; they participated in a program of aerobic physical activity, three times per week, during four months, with an intensity between 60-85% of the maximal heart rate and with 60 minutes of duration per session. Before and after the program blood specimens were obtained to evaluate changes of hemoglobin, hematocrite, red blood cells count, average corpuscular volume, average corpuscular hemoglobin, and average concentration of corpuscular hemoglobin; by means of a maximal test in treadmill the maximal oxygen uptake (VO2max) was determined. Results: significant increase was found in hemoglobin (p<0.01), hematocrite (p<0.001), average corpuscular volume (p<0.001), average corpuscular hemoglobin (p<0.01) and VO2max (p<0.05). There were no changes in red blood cell count and average concentration of corpuscular hemoglobin. Conclusion: in the studied group, a program of regular physical activity, with an intensity between 6
Use of Probiotics in Aquaculture
Patricia Martínez Cruz,Ana L. Ibá?ez,Oscar A. Monroy Hermosillo,Hugo C. Ramírez Saad
ISRN Microbiology , 2012, DOI: 10.5402/2012/916845
Abstract: The growth of aquaculture as an industry has accelerated over the past decades; this has resulted in environmental damages and low productivity of various crops. The need for increased disease resistance, growth of aquatic organisms, and feed efficiency has brought about the use of probiotics in aquaculture practices. The first application of probiotics occurred in 1986, to test their ability to increase growth of hydrobionts (organisms that live in water). Later, probiotics were used to improve water quality and control of bacterial infections. Nowadays, there is documented evidence that probiotics can improve the digestibility of nutrients, increase tolerance to stress, and encourage reproduction. Currently, there are commercial probiotic products prepared from various bacterial species such as Bacillus sp., Lactobacillus sp., Enterococcus sp., Carnobacterium sp., and the yeast Saccharomyces cerevisiae among others, and their use is regulated by careful management recommendations. The present paper shows the current knowledge of the use of probiotics in aquaculture, its antecedents, and safety measures to be carried out and discusses the prospects for study in this field. 1. Introduction Aquaculture is the farming of aquatic organisms by intervention in the rearing process to enhance production and private ownership of the stock being cultivated. Compared to fishing, this activity allows a selective increase in the production of species used for human consumption, industry or sport fishing. Due to overfishing of wild populations, aquaculture has become an economic activity of great importance around the world. Aquaculture’s contribution to world food production, raw materials for industrial and pharmaceutical use, and aquatic organisms for stocking or ornamental trade has increased dramatically in recent decades. The report World Aquaculture 2012 found that global production of fish from aquaculture grew more than 30 percent between 2006 and 2011, from 47.3 million tons to 63.6 million tons. It also forecasts that by 2012 more than 50 percent of the world’s food fish consumption will come from aquaculture, so it is expected to overtaking capture fisheries as a source of edible fish. This growth rate is due to several factors: (1) many fisheries have reached their maximum sustainable exploitation, (2) consumer concerns about security and safety of their food, (3) the market demand for high-quality, healthy, low-calorie, and high-protein aquatic products, and (4) aquatic breeding makes only a minimum contribution to carbon dioxide emission [1, 2].
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