We have carried out a thorough forensic analysis of the national-level Venezuelan electoral processes held during the — period to assess these complaints. Building effective international, multicultural alliances for restoration of ejido forests in the Sierra Madre Occidental. Effective NGO-government-community alliances are the key to overcoming the complex socio-political obstacles to conservation in the Sierra Madre Occidental.
Over 80 percent of the territory in the Sierra Madre Occidental is communally owned. Agrarian and other socio-economic conditions present both opportunities and obstacles to conservation. Elevated mercury concentrations in humans of Madre de Dios, Peru. The enormous increase in practically unregulated mining in Madre de Dios Peru is leading to massive release of liquid elemental mercury to the environment. Rapidly increasing global prices for gold are causing a massive upsurge in artisanal mining in the Peruvian Amazon, considered to be one of the most biodiverse places on the planet.
This study identifies the current levels of mercury in the human population, through identifying levels of total mercury in human hair in mining zones of Madre de Dios Department and in the nearby city of Puerto Maldonado. A regression analysis reveals that fish consumption, gender, and location of residence were significant indicators of mercury levels; while duration of residence and age had no significant relationship to mercury levels.
Increased fish consumption levels were the strongest indicators of increased total mercury levels across the entire population. In both areas men had significantly higher levels than women, likely due to a difference in metabolism or varying levels of direct involvement in gold mining- a male predominated industry. This is the first study to show the health threat that mercury poses to this region, however further research needs to be done to gain a more refined understanding of the predominant routes of exposure in this population.
Laguna Madre is an important lagoon in the coast of Texas. It is one of the seven hypersaline lagoons in the world. Due to inflow of water with extreme amounts of phosphorus and nitrates and the low inflow of freshwater, the lagoon has high amount of phosphorus and nitrates which can be harmful for fish and plants situated in the lagoon. The goal is to be able to perform a filtration method with citrus peels biochar, and then to evaluate and compare the produced biochar, zeolite, and activated carbon as an infiltration filter by assessing reductions of nitrogen and phosphorus compounds, as well as sum selected trace elements.
Furthermore, the current research will investigate how long the cleaning capacity of biochar lasts and how the performance of the filter changes under an increased load of contaminants. The performance of biochar from different parent materials and recycling options for the used filter materials are also included in this research.
Photo series for quantifying forest fuels in Mexico: Single wide-angle and stereo photographs display a range of forest ecosystems conditions and fuel loadings in montane subtropical forests of the Sierra Madre del Sur and temperate forests and montane shrubland of the northern Sierra Madre Oriental of Mexico.
Each group of photographs includes inventory information summarizing overstory vegetation composition and World class Devonian potential seen in eastern Madre de Dios basin. The Madre de Dios basin in northern Bolivia contains thick, laterally extensive, organic-rich Upper Devonian source rocks that reached the oil-generative stage of thermal maturity after trap and seal formation. Despite these facts, less than one dozen exploration wells have been drilled in the Madre de Dios basin, and no significant reserves have been discovered.
Mobil geoscientists conducted a regional geological, geophysical, and geochemical study of the Madre de Dios basin. The work reported here was designed to assess the distribution, richness, depositional environment, and thermal maturity of Devonian source rocks. Source potential also exists in Cretaceous, Mississippian, and Permian intervals. The results of this study have important implications for future exploration in Bolivia and Peru.
Redhead duck behavior on lower Laguna Madre and adjacent ponds of southern Texas. Behavior of redheads Aythya americana during winter was studied on the hypersaline lower Laguna Madre and adjacent freshwater to brackish water ponds of southern Texas. Water depth was least where they fed by dipping 16 cm , greatest where diving 75 cm , and intermediate where tipping 26 cm. Feeding sequences averaged 5.
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Redheads usually were present on freshwater to brackish water ponds adjacent to Laguna Madre only during daylight hours, and use of those areas declined as winter progressed. Because redheads fed almost exclusively on shoalgrass while dipping and tipping in shallow water and shoalgrass meadows have declined in the lower Laguna Madre , proper management of the remaining shoalgrass habitat is necessary to ensure that this area remains the major wintering area for redheads. This article examines the historical and contemporary role of Latina madres in the educational lives of their children and communities.
Latinas, in their work as mother-activists, have played critical roles in the schooling lives of their children, seeking educational equality for their communities in general, amidst the growing racial politics…. Jain, Shailesh; Carmody, Thomas J. A consecutive sample of patients with depression receiving ECT in the North East of Scotland was assessed by retrospective chart review. Scores on extracted factor subscales, clinical and demographic characteristics were assessed for association with response and subsequent ECT treatment within 12 months.
Where more than 1 variable was associated with response or subsequent ECT, logistic regression analysis was applied. MADRS symptom subtypes formed 3 separate factors in both samples. Logistic regression revealed older age and high "Despondency" subscale score predicted response in the nonpsychotic group. Older age alone predicted response in the group with psychotic features. No association of variables emerged with subsequent ECT treatment in the group with psychotic features.
Being of older age and the presence of psychotic features predicted response. Presence of psychotic features alone predicted subsequent retreatment. Subscale scores of the MADRS are of limited use in predicting which patients with depression will respond to ECT, with the exception of "Despondency" subscale scores in patients without psychotic features.
Equipercentile linking with the CGI using a company database of mirtazapine studies. Our results confirm the validity of the commonly used measures for response in MDD trials: Torn between two colonial powers, Macau has long existed as a peripheral region in Lusophone studies. With a focus on a contemporary Macau that seeks to resolve its fundamental duality through investigation of gender,…. From humble beginnings in Yuma, Arizona This study focuses on the Central Sierra Madre Fault CSMF in an effort to provide numeric dating on surfaces with ages previously estimated from soil development alone.
We have refined previous geomorphic mapping conducted in the western portion of the CSMF near Pasadena, CA, with the aid of new lidar data. This progress report focuses on our geochronology strategy employed in collecting samples and interpreting data to determine a robust suite of terrace surface ages. Sample sites for terrestrial cosmogenic nuclide and luminescence dating techniques were selected to be redundant and to be validated through relative geomorphic relationships between inset terrace levels.
Additional sample sites were selected to evaluate the post-abandonment histories of terrace surfaces. We will combine lidar-derived displacement data with surface ages to estimate slip rates for the CSMF. A new species of Rhadinella Serpentes: We describe a new species of Rhadinella from the Sierra Madre del Sur of Guerrero, Mexico, a region where the genus was previously unknown.
This diminutive species is a member of a group of snakes previously allocated in the Rhadinaea godmani group, and more recently transferred to the genus Rhadinella. These snakes may have conspicuous dark longitudinal striping on a pale brown to orange background or may have dark brown to blackish dorsal ground coloration, which mostly or completely obfuscates a pattern of longitudinal striping.
The new species is mostly dark with barely discernible slightly paler or darker striping depending on how striping is interpreted. The closest relative of the new species, on the basis of morphological similarities and biogeography, appears to be Rhadinella donaji which occurs to the east in the Sierra Madre del Sur of Oaxaca about km from the type-locality of the new species.
Madres para la Salud: Weight gain in young women suggests that childbearing may be an important contributor to the development of obesity in women. Depressive symptoms can interfere with resumption of normal activity levels following childbirth or with the initiation of or adherence to physical activity programs essential for losing pregnancy weight. Depression symptoms may function directly to promote weight gain through a physiologic mechanism.
Obesity and its related insulin resistance may contribute to depressed mood physiologically. Although physical activity has well-established beneficial effects on weight management and depression, women tend to under participate in physical activity during childbearing years. Further, the mechanisms underpinning the interplay of overweight, obesity, physical activity, depression, and inflammatory processes are not clearly explained.
This report describes the theoretical rationale, design considerations, and cultural relevance for " Madres para la Salud" [Mothers for Health]. Madres para la Salud is a 12 month prospective, randomized controlled trial exploring the effectiveness of a culturally specific intervention using "bouts" of physical activity to effect changes in body fat, systemic and fat tissue inflammation, and postpartum depression symptoms in sedentary postpartum Latinas.
The significance and innovation of Madres para la Salud includes use of a theory-driven approach to intervention, specification and cultural relevance of a social support intervention, use of a Promotora model to incorporate cultural approaches, use of objective measures of physical activity in post partum Latinas women, and the examination of biomarkers indicative of cardiovascular risk related to physical activity behaviors in postpartum Latinas.
The vinyl ether benzyloxycarbonyl VeZ protecting group is selectively cleaved by treatment with tetrazines via an inverse electron-demand Diels-Alder reaction. Soilscapes in the dynamic tropical environments: The case of Sierra Madre del Sur. The paper gives an analysis of the pattern of soil cover of the Sierra Madre del Sur, one of the most complex physiographic regions of Mexico. It presents the results of the study of four latitudinal traverses across the region. We show that the distribution of soils in the Sierra Madre del Sur is associated with major climatic gradients, namely by vertical bioclimatic zonality in the mountains and by the effect of mountain shadow.
Altitudinal distribution of soil-bioclimatic belts is complex due to non-uniform gradients of temperature and rainfall, and varies with the configuration of the mountain range. The distribution of soils is associated with the erosion and accumulation rates both on mountain slopes and in river valleys. The abundance of poorly developed soils in semi arid areas was ascribed to high erosion rate rather than to low pedogenetic potential. The formation of soil mosaic at a larger scale might be ascribed to the complex net of gully erosion and to the system of seismically triggered landslides of various ages.
In the valleys, the distribution of soils depends upon the dynamics of sedimentation and erosion, which eventually exposes paleosols. Red-colored clayey sediments are remains of ancient weathering and pedogenesis. Their distribution is associated mainly with the intensity of recent slope processes. The soil cover pattern of the Sierra Madre del Sur cannot be explained by simplified schemes of bioclimatic zonality.
The soil ranges can be explained by the distribution of climates, lithology, complex geological history of the region, and recent geomorphological processes. Design of a Theory-based Intervention for Postpartum Latinas. Background Weight gain in young women suggests that childbearing may be an important contributor to the development of obesity in women. Summary The significance and innovation of Madres para la Salud includes use of a theory-driven approach to intervention, specification and cultural relevance of a social support intervention, use of a Promotora model to incorporate cultural approaches, use of objective measures of physical activity in post partum Latinas women, and the examination of biomarkers indicative of cardiovascular risk related to physical activity behaviors in postpartum Latinas.
Emplacement dynamics and hydrothermal alteration of the Atengo ignimbrite, southern Sierra Madre Occidental, northwestern Mexico.
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Agarwal, Amar; Alva-Valdivia, L. The Sierra Madre Occidental is a thick continental arc related to the subduction of the Farallon plate beneath North America resulting in a very intense and widespread Cretaceous to Cenozoic magmatic and tectonic activity. From 12 sites that belong to various pyroclastic and lava flows emplaced during two pulses in the Oligocene ca. The mineralogical and rock magnetic properties of the Atengo ignimbrite are compared with the surrounding volcanic rocks to identify the eruption mechanism, and with the El Castillo Ignimbrite, Veracruz, Mexico, to understand the depositional conditions.
The comparisons reveal that the Atengo ignimbrite erupted from a single source, but less violently than the El Castillo ignimbrite, and cooled rapidly, inhibiting the formation of subhedral grains. The source of the Atengo Ignimbrite was a Plinian-type eruption, and the characteristic mineralogical and textural properties of each flow are related to different stages of the Plinian-type eruption.
Further more, hydrothermal fluids were active during the last stages of volcanism, and caused moderate to intense alteration, especially in the ignimbrites, where high permeability aided the movement of hydrothermal fluids. Federal Register , , , , This article describes the Latina mother's experience as…. Assessment of post-fire forest structural diversity using neighborhood parameter in the Sierra Madre Oriental, Mexico. The objective of this research was to characterize the spatial structure patterns of a Pinus hartwegii forest in the Sierra Madre Oriental, affected by a fire in Sampling was stratified by fire severity.
A total of three fire severity classes low, medium and high were defined. Three sample plots of 40m x 40m were established for each Influence of climate and land use on historical surface fires in pine-oak forests, Sierra Madre Occidental, Mexico. The rugged mountains of the Sierra Madre Occidental, in north-central Mexico, support a mosaic of diverse ecosystems.
Of these, the high-elevation, temperate pine-oak forests are ecologically significant for their extensiveness and biodiversity. Little is known on the existing environmental status of the LLM. This study focuses on the trace metal chemistry of four micronutrient metals, Fe, Mn, Cu, and Zn, and two non-essential metals, Pb and As, in the globally important seagrass Thalassia testudinum.
Seasonal trends show that concentrations of most essential trace metals increase in the tissue during the summer months. With the exception of 1 Cu in the vertical shoot and root, and 2 Mn in the roots, no significant positive correlation exists between the rhizosphere sediment and T. Iron indicates a negative correlation between the morphological units and the rhizosphere sediments. No other significant relationship was found between the sediments and the T.
Mn was enriched up to fold in the leaf tissue relative to the other morphological units and also enriched relative to the rhizosphere sediments. Both Cu and Mn appear to be enriched in leaf tissue compared to other morphological units and also enriched relative to the Cu and Mn in the rhizoshpere sediments. Sediments cores taken in barren areas were slightly elevated in Zn relative to the rhizosphere sediments, whereas no other metals showed statistical differences between barren sediment cores and rhizosphere sediments. However, no correlation was measured in T. The results from this study show that the LLM contains trace metal.
The reemergence of malaria in the last decade in Madre de Dios, southern Peruvian Amazon basin, was accompanied by ecological, political, and socioeconomic changes related to the proliferation of illegal gold mining. We conducted a secondary analysis of passive malaria surveillance data reported by the health networks in Madre de Dios between and We calculated the number of cases of malaria by year, geographic location, intensity of illegal mining activities, and proximity of health facilities to the Peru-Brazil Interoceanic Highway.
During , , febrile cases were identified in Madre de Dios, of which 30, Transmission of malaria in Madre de Dios is unstable, geographically heterogeneous, and strongly associated with illegal gold mining. These findings highlight the importance of spatially oriented interventions to control malaria in Madre de Dios, as well as the need for research on malaria transmission in illegal gold mining camps. Christian; Asencios, Jorge L. We calculated the number of cases of malaria by year, geographic location, intensity of illegal mining activities, and proximity of health facilities to the Peru—Brazil Interoceanic Highway.
During —, , febrile cases were identified in Madre de Dios, of which 30, Cases of malaria rose rapidly between and , reached 4, cases in , and then declined after to pre levels. Response of shoal grass, Halodule wrightii, to extreme winter conditions in the Lower Laguna Madre , Texas. Effects of a severe freeze on the shoal grass, Halodule wrightii, were documented through analysis of temporal and spatial trends in below-ground biomass.
The coincidence of the second lowest temperature C in years of record, 56 consecutive hours below freezing, high winds and extremely low water levels exposed the Laguna Madre , TX, to the most severe cold stress in over a century. Annual pre- and post-freeze surveys indicated that below-ground biomass estimated from volume was Unaffected by the freeze event.
Nor was there any post-freeze change in biomass among intertidal sites directly exposed to freezing air temperatures relative to subtidal sites which remained submerged during the freezing period. The Bolivian source rocks: A complete study of source rocks has been carried out in the Bolivian foothills and foreland Sub Andean Zone, Chaco and Madre de Dios in order to quantify the petroleum potential of the area.
Besides the classical mid-Devonian source rocks Tequeje Formation in the north, Limoncito Formation in the center and Los Monos Formation in the south , others are important: The Latest Cretaceous Flora Formation present locally a high potential but is very thin. Almost all the source rocks matured during the Neogene due to the subsidence in the Andean foreland and in the piggyback basins, and are thus involved on the current petroleum system.
Silurian and Lower Paleozoic units also contain thick shale beds, but these source rocks were mature before the Jurassic in the south of the country. In the center, the Silurian is not nowadays overmature and may play an important role. Since these two areas remain almost unexplored, these results allow us to be optimistic about the possibilities for future exploration.
The mid-Tertiary ignimbrites of the Sierra Madre Occidental of western Mexico constitute the largest continuous rhyolitic province in the world. The rhyolites appear to represent part of a continental magmatic arc that was emplaced when an eastward-dipping subduction zone was located beneath western Mexico.
In the Batopilas region of the northern Sierra Madre Occidental the mid-Tertiary Upper Volcanic sequence is composed predominantly of rhyolitic ignimbrites, but volumetrically minor lava flows as mafic as basaltic andesite are also present. The entire series plots as coherent and continuous trends on variation diagrams involving major and trace elements, and the trends are distinct from those of geographicallyassociated rocks of other suites. We interpret these and other geochemical variations to indicate that the rocks are comagmatic.
Mineral chemistry, Sr isotopic data, and REE modelling support this interpretation. Least squares calculations show that the major element variations are consistent with formation of the basaltic andesite to rhyolite series by crystal fractionation of observed phenocryst phases in approximate modal proportions. In addition, calculations modelling the behavior of Sr with the incompatible trace element Th favor a fractional crystallization origin over a crustal anatexis origin for the rock series. Patterns of tree species diversity in relation to climatic factors on the Sierra Madre Occidental, Mexico.
Biological diversity can be defined as variability among living organisms from all sources, including terrestrial organisms, marine and other aquatic ecosystems, and the ecological complexes which they are part of. This includes diversity within species, between species, and of ecosystems. Numerous diversity indices combine richness and evenness in a single expression, and several climate-based explanations have been proposed to explain broad-scale diversity patterns.
However, climate-based water-energy dynamics appears to be an essential factor that determines patterns of diversity. The Mexican Sierra Madre Occidental occupies an area of about 29 million hectares and is located between the Neotropical and Holarctic ecozones. It shelters a high diversity of flora, including 24 different species of Pinus ca. The annual aridity index was the variable most closely related to the diversity indices analyzed.
Contemporary climate was found to have moderate to strong effects on the minimum, median and maximum tree species diversity. Because water-energy dynamics provided a satisfactory explanation for the patterns of minimum, median and maximum diversity, an understanding of this factor is critical to future biodiversity research.
Quantile regression of the data showed that the three diversity parameters of tree species are generally higher in cold. You Only Live Once: Although Latinos living in the United States are disproportionately affected by HIV, the development, implementation, and evaluation of HIV prevention, testing, and linkage to care interventions lag behind efforts occurring in other communities.
To address sociocultural barriers to testing, we developed a multilevel intervention. This study is a pilot evaluation of the individual-level component of the intervention-animated video modules that address specific barriers to HIV testing common among foreign-born Latino men. We conducted a survey assessing HIV risk and barriers to testing with a convenience sample of foreign-born Latino men in Baltimore, MD, who had not tested for HIV within the past year. Intention to test in the next 3 months was measured before and after viewing an intervention module selected based on survey responses.
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Of the participants who had previously tested for HIV, the mean time since their last test was 3. Middle Precambrian miogeosynclinal metasedimentary rocks o the Sierra Madre and Medicine Bow Mountains of southeastern Wyoming contain radioactive quartz-pebble conglomerates of possible economic interest. These conglomerates do not contain ore-grade uranium in surface outcrops, but an earlier report on the geochemistry of the Arrastre Lake area of the Medicine Bow Mountains shows that ore-grade deposits may be present in the subsurface.
This report describes the stratigraphy of the host metasedimentary rocks and the stratigraphic setting of the radioactive conglomerates in both the Sierra Madre and Medicine Bow Mountains, and compares these rock units with those of the Blind River-Elliot Lake uranium district in Canada. The location of radioactive.
To determine the distribution and abundance of wintering plovers in the Laguna Madre of Texas and Tamaulipas, surveys were conducted in December and February , along a km stretch of barrier islands in Mexico and- 40 km of shoreline on South Padre Island, Texas. Altogether, 5, individuals, representing six plover species, were recorded during the surveys. Numbers of Piping Charadriusm elodu, Snowy C. In Tamaulipas, most plover species were observed more often on algal flats than any other substrate.
These results provide evidence of the value of these systems as wintering areas for plover species and indicate the need for more extensive survey efforts to determine temporal and spatial variation in the distribution of these species within the Laguna ecosystem. Stratigraphic and tectonic implications. Results from the first detailed radiolarian biostratigraphic study conducted in Luzon are reported.
The data were obtained from cherts associated with the Casiguran Ophiolite, a dismembered ophiolite mass consisting of serpentinized peridotites, gabbros, dolerite dikes and pillow basalts exposed along the eastern coast of the Northern Sierra Madre , Luzon, Philippines. Cherts and limestone interbeds conformably overlie the ophiolite. The radiolarian assemblages from the cherts constrain the stratigraphic range of the cherts to the Lower Cretaceous upper Barremian-lower Aptian to Albian. This new biostratigraphic result is in contrast with the Upper Cretaceous stratigraphic range previously reported in the region.
Radiolarian biostratigraphic results from the Casiguran Ophiolite provide additional evidence for the existence of Mesozoic oceanic substratum upon which Luzon and neighboring regions within the Philippine archipelago were likely built. Interestingly, the result closely resembles those reported for the ophiolite in southeastern Luzon as well as the oceanic crust of the Huatung Basin situated east of Taiwan and the ophiolites in eastern Indonesia.
In light of this, along with previously gathered geochemical data from the ophiolites, a common provenance is being looked into for these crust-upper mantle sequences in the western Pacific region. A new middle Miocene vertebrate fauna from Peruvian Amazonia is described. It yields the marsupials Sipalocyon sp. Hathliacynidae and Marmosa Micoureus cf.
Apatite Fission Track provides a detrital age Put together, both the mammalian assemblage and lithology of the fossil-bearing level point to a mixture of tropical rainforest environment and more open habitats under a monsoonal-like tropical climate. The fully fluvial origin of the concerned sedimentary sequence suggests that the Amazonian Madre de Dios Subandean Zone was not part of the Pebas mega-wetland System by middle Miocene times. This dissertation investigates the limnology of the southwestern Peruvian Amazon centered on the Madre de Dios department by examining first the geomorphology and then the ecology and biogeochemistry of the region's fluvial systems.
Madre de Dios, Peru is world renowned for its prolific biodiversity and its location within the Andes biodiversity hotspot. It is also a site of study regarding the development of the Fitzcarrald Arch and that feature's geomorphological importance as the drainage center for the headwaters of the Madeira Riverthe Amazon's largest tributary and as well as its role as a physical divider of genetic evolution in the Amazon.
Though each of these has been studied by a variety of prominent researchers, the ability to investigate all the aspects of this unique region is hampered by the lack of a regional geomorphological map. This study aims to fill that gap by using remote sensing techniques on digital elevation models, satellite imagery and soil, geology and geoecological maps already in publication to create a geomorphological map.
The resulting map contains ten distinct landform types that exemplify the dominance of fluvial processes in shaping this landscape. The river terraces of the Madre de Dios River are delineated in their entirety as well as the various dissected relief units and previously undefined units. The demarcation of the boundaries of these geomorphic units will provide invaluable assistance to the selection of field sites by future researchers as well as insights into the origin of the high biodiversity indices of this region and aid in planning for biodiversity conservation.
Secondly this study examines 25 tropical floodplain lakes along km of the Manu River within the Manu National Park in the Madre de Dios department. Alternative stable state and regime shifts in shallow lakes typically have been examined in lakes in temperate and boreal regions and within anthropogenically disturbed basins but have rarely been. Accurate monitoring of the effectiveness of protected areas PAs in decreasing deforestation is increasingly important given the vital role of forest protection in climate change mitigation.
Recent studies on PA effectiveness have used remote-sensing imagery to compare deforestation rates within PAs to surrounding areas. However, remote-sensing data used in isolation provides limited information on the factors contributing to effectiveness. We used landscape-modelling techniques to estimate the effectiveness of ten PAs in Madre de Dios, Peru. Factors influencing PA effectiveness were investigated using in situ key-informant interviews. Although all of the PAs studied had positive effectiveness scores, those with the highest scores were ecotourism and conservation concessions, where monitoring and surveillance activities and good relations with surrounding communities were reported as possible factors in decreasing deforestation rates.
Native community areas had the lowest scores, with deforestation mainly driven by internal resource use and population growth. Weak local governance and immigration were identified as underlying factors decreasing the effectiveness of protection, whereas good relations with surrounding communities and monitoring activity increased effectiveness.
The results highlight the need to combine remote sensing with in situ information on PA management because identification of drivers and deterrents of deforestation is vital for improving the effectiveness of protection. The effectiveness of contrasting protected areas in preventing deforestation in Madre de Dios, Peru. Graben calderas of the Sierra Madre Occidental: The case of Guanajuato, central Mexico. The Sierra Madre Occidental SMO volcanic province is characterized by voluminous silicic ignimbrites that reach an accumulated thickness of to m.
A single ignimbrite can reach up to m thick in its outflow facies. This ignimbrite sequence formed mostly within Ma, building up a total estimated volume of ca.
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We have showed that several and probably most of the SMO ignimbrites were erupted from fissures associated to Basin and Range fault systems or grabens Geology, , thus naming these volcano-tectonic structures as graben calderas Caldera Volcanism book, Elsevier, Fallout deposits, plinian or non-plinian, are not observed in the sequence. Thus, onset of caldera collapse represented by the major ignimbrite must occur just after deposition of continental sediments within the graben domain.
A similar volcano-tectonic development is observed in pull-apart grabens. Therefore, extensional or transtensional tectonics, before and during caldera collapse, and the emplacement of a subgraben shallow silicic magma chamber are the necessary conditions for the development of graben calderas. We describe here the case of the Guanajuato graben caldera, located in the central part of Mexico and in the southeastern portion of the SMO volcanic province. The caldera is part of the economically important mining district of Guanajuato, with 28 silver mines, some active since the 16th century.
The caldera structure, a rectangle of 10 x 16 km, was controlled by NW and NE regional fault systems. Observational study for scale validation. Validity criteria were used to determine the severity cut-off points of the tool. Taking into account sensitivity and specificity values, those cut points were contrasted with ICD criteria for depression severity.
A a factor analysis was performed. The internal consistencY was determined with the same sample of patients used for the validity criteria. Inter-rater reliability was assessed by evaluating the 22 records of the patients that consented to a video interview.
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Sensitivity to change was established through a second application of the scale in 28 subjects after a lapse of 14 to 28 days. The instrument has a good sensitivity to change. Physical activity and sedentary behaviors in postpartum Latinas: Madres para la Salud. To describe the physical activity PA and sedentary behaviors of postpartum Latinas who are overweight or obese before initiating Madres para la Salud, a social support-mediated walking intervention to promote postpartum weight loss. One hundred thirty-nine postpartum women Most time was spent in sedentary Consistent with objective PA measures, PA records showed more time spent in light-intensity PA such as home care, cooking, child care and self-care tasks, occupation, religious events, and watching television.
This demographic should be the focus of PA interventions to increase PA to health-enhancing levels. Herein, we report the isolation, complete genome sequence, genetic characterization, and phylogenetic analysis of an OROV species reassortant, Madre de Dios virus MDDV , obtained from a sick monkey Cebus olivaceus Schomburgk collected in a forest near Atapirire, a small rural village located in Anzoategui State, Venezuela. This textbook in partial differential equations has been adopted as course material by the Moscow State University.
The theoretical foundations of PDE are explained rigorously and clearly in such a way that their importance on applications is also taken into account. The presentation of materials has been arranged to be conducive to promoting students' interest in mathematical experiments. El poeta mueve con mano maestra la variedad infinita de elementos que nombra y que lo acompanan siempre en los ritos de vida que celebra. Brazos de mar y el tropico como telon de fondo, como paisaje, como orden y como caos. Viajes y Ensayos I. Nueva Memoria del Tigre: Los Sentidos al Aire.
Las Voces del Tiempo. Are you sure you want to delete this list? ALL Paperback Hardcover ALL Spanish English Display - from results. Local courier delivery with tracking number or collect from 90 lockers islandwide. Add to My List. Tablero de Divagaciones, II. Aura de La Estatua.
Vida imaginada, a novelized autobiography that tells the detailed story of his childhood and early youth: