PubMed Journals Articles About "Amazon Corporation" RSS

00:42 EDT 18th July 2018 | BioPortfolio

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Showing "Amazon Corporation" PubMed Articles 1–25 of 139

PBMs: Will the Amazon Cometh?

PBM consultant Linda Cahn says that if Amazon gets into the PBM business it could insist that drugmakers simultaneously submit the net discount price for each of their drugs for the subsequent six months. Amazon could then publicize every drug's actual price, by drug and by therapeutic category.

Impact of the biomass burning on methane variability during dry years in the Amazon measured from an aircraft and the AIRS sensor.

The present study examines the spatiotemporal variability and interrelations of the atmospheric methane (CH4), carbon monoxide (CO) and biomass burning (BB) outbreaks retrieved from satellite data over the Amazon region during the 2003-2012 period. In the climatological context, we found consistent seasonal cycles of BB outbreaks and CO in the Amazon, both variables showing a peak during the dry season. The dominant CO variability mode features the largest positive loadings in the southern Amazon, and descr...

First report of Panstrongylus megistus (Hemiptera, Reduviidae, Triatominae) in the State of Scre and Rondônia, Amazon, Brazil.

This article reports, for the first time, the occurrence of Panstrongylus megistus in the Brazilian Western Amazon.

First report of Triatoma sordida Stål, 1859 (Hemiptera, Reduviidae, Triatominae) in the State of Acre and Brazilian Western Amazon.

The occurrence of Triatoma sordida in the Brazilian Western Amazon is reported for the first time.

Prevention of Maternal-Child Transmission of HIV in Pregnant Women and Mothers of the Awajun and Wampis Communities in the Amazon Region of Peru.

To identify the barriers that limit compliance with the prevention of mother-to-child transmission (PMTCT) of HIV measures in two indigenous communities of the Amazon region of Peru.

Impacts of land-use and land-cover change on stream hydrochemistry in the Cerrado and Amazon biomes.

Studies on the impacts of land-use and land-cover change on stream hydrochemistry in active deforestation zones of the Amazon agricultural frontier are limited and have often used low-temporal-resolution datasets. Moreover, these impacts are not concurrently assessed in well-established agricultural areas and new deforestations hotspots. We aimed to identify these impacts using an experimental setup to collect high-temporal-resolution hydrological and hydrochemical data in two pairs of low-order streams in ...

A new species of Anchoviella (Clupeiformes: Engraulidae) from the western Amazon River in Peru, with comments on congeners in the Peruvian Amazon River.

Anchoviella hernanni sp. nov. is described from the upper Amazon River basin, in tributaries of the Marañon, Ucayali and Madre de Dios river drainages that drain the Peruvian Andes. The new taxon can be distinguished from all congeners except Anchoviella jamesi, Anchoviella manamensis and Anchoviella perezi, by having 12-15 gill rakers in the lower branch of the first gill arch (v·16-35) and from those species by the distance between verticals through the posterior margin of the orbit to the posterior mar...

Meanings of 'Tuberculosis' in Rural Indigenous Communities from a Municipality in the Colombian Amazon.

The purpose herein was to describe the meanings on tuberculosis (TB) in rural indigenous communities from a municipality in the Colombian Amazon.

Eosinophilic Esophagitis Through the Flexible Endoscope and the Lens of a Photographer in the Amazon.

Eosinophilic esophagitis (EoE) is a disorder that has been identified recently, thus knowledge about it, its pathogenesis, and potential etiologies has spread in an era where the medical community and the public are receiving the information and discussing it as it appears in the medical literature. Because physiology, pathology, and pathophysiology are difficult to explain in layman terms, the author has used photographs taken in remote areas of the Amazon to create visual similes within a narrative that b...

Barriers For The Quality of Information in Health Facilities of Amazon Region.

. To identify the barriers to the quality of information in health facilities in the Amazon region, exploring the case of three health information systems: the epidemiological vigilance, the daily recording of service, and the registry of deaths linked to HIV/AIDS, hepatitis B, and congenital syphilis.

Critical linkages between land use change and human health in the Amazon region: A scoping review.

Land use change (LUC) is a main cause of global environmental change, and is an important activity to be studied. Our research aims to examine the current state of evidence on the link between LUC and human health in the Amazon region. We conducted a scoping review of literature in two research databases, resulting in 14 papers for analysis. Our analysis demonstrated a lack of clear definitions for LUC, a wide variety of negative health effects from LUC, the lack of qualitative articles, a lack of studies e...

Large emissions from floodplain trees close the Amazon methane budget.

Wetlands are the largest global source of atmospheric methane (CH4), a potent greenhouse gas. However, methane emission inventories from the Amazon floodplain, the largest natural geographic source of CH4 in the tropics, consistently underestimate the atmospheric burden of CH4 determined via remote sensing and inversion modelling, pointing to a major gap in our understanding of the contribution of these ecosystems to CH4 emissions. Here we report CH4 fluxes from the stems of 2,357 individual Amazonian flood...

Reduced solar-induced chlorophyll fluorescence from GOME-2 during Amazon drought caused by dataset artifacts.

Yang et al. (2018) reported an increase in enhanced vegetation index (EVI) and incoming solar radiation, together with a decreased solar-induced chlorophyll fluorescence (SIF) signal in Amazon forest during the 2015/2016 El Niño event, and suggested that although the greenness of the forest increased, the reduced SIF signal demonstrated an reduced of photosynthetic capacity during the drought. We argue that the decreased SIF signal may be caused by the artifacts of the datasets and does not necessarily su...

Molecular taxonomy and evolutionary relationships in the Oswaldoi-Konderi complex (Anophelinae: Anopheles: Nyssorhynchus) from the Brazilian Amazon region.

Recent studies have shown that Anopheles oswaldoi sensu lato comprises a cryptic species complex in South America. Anopheles konderi, which was previously raised to synonymy with An. oswaldoi, has also been suggested to form a species complex. An. oswaldoi has been incriminated as a malaria vector in some areas of the Brazilian Amazon, Colombia, Peru and Venezuela, but was not recognized as a vector in the remaining regions in its geographic distribution. The role of An. konderi as a malaria vector is unkno...

The impact of channel capture on estuarine hydro-morphodynamics and water quality in the Amazon delta.

Due to progressive erosion of the new Urucurituba Channel, the Amazon River has recently captured almost all discharge from the lower Araguari River (Amapá-AP, Brazil), which previously flowed directly to the Atlantic Ocean. These recent geomorphological changes have caused strong impacts on the landscape and hydrodynamic patterns near the Araguari River mouth, especially the alteration of the riverine drainage system and its water quality. Landsat images were used to assess the estuarine landscape morphod...

Self-reported Health Status Differs for Amazon's Mechanical Turk Respondents Compared With Nationally Representative Surveys.

Amazon's Mechanical Turk (MTurk) platform has become a data source for peer-reviewed academic research publications, with over 24,000 Google Scholar search results. Although well-developed and supportive in other disciplines, the literature in health and medicine comparing results from samples generated on MTurk to gold standard, nationally representative health and medical surveys is beginning to emerge.

Surveillance of seroepidemiology and morbidity of Chagas disease in the Negro River, Brazilian Amazon.

Chagas disease in the Brazilian Amazon Region was previously regarded as an enzootic disease of wild animals. More recently, in situations where humans have penetrated the wild ecotope or where triatomines and/or wild animals (marsupials) have invaded human homes resulting in disease transmission, Chagas disease has come to be regarded as an anthropozoonosis. We found that the highest incidence of infection due to Trypanosoma cruzi and Chagas disease occurred among piassaba fibre gatherers and their familie...

Role of the floodplain lakes in the methylmercury distribution and exchanges with the Amazon River, Brazil.

Seasonal variability of dissolved and particulate methylmercury (F-MeHg, P-MeHg) concentrations was studied in the waters of the Amazon River and its associated Curuai floodplain during hydrological year 2005-2006, to understand the MeHg exchanges between these aquatic systems. In the oxic white water lakes, with neutral pH, high F-MeHg and P-MeHg concentrations were measured during the rising water stage (0.70±0.37pmol/L, n=26) and flood peak (14.19±9.32pmol/g, n=7) respectively, when the Amazon River wa...

New records of tick-associated spotted fever group Rickettsia in an Amazon-Savannah ecotone, Brazil.

Human rickettsiosis has been recorded in the Amazon Biome. However, the epidemiological cycle of causative rickettsiae has not been fully accounted for in the Amazon region. This study investigates the presence of spotted fever group (SFG) Rickettsia spp. in free-living unfed ticks of the Amblyomma genus. The study was conducted in seven municipalities in Rondonia State, Brazil, where the main biomes are Amazon forest, Brazilian Savannah and their ecotones (areas of ecological tension between open ombrophil...

Amazon's cloud on the healthcare horizon.

Persistence of Yellow fever virus outside the Amazon Basin, causing epidemics in Southeast Brazil, from 2016 to 2018.

Yellow fever (YF) is endemic in the Brazilian Amazon Basin, and sporadic outbreaks take place outside the endemic area in Brazil. Since 2016, YF epidemics have been occurring in Southeast Brazil, with more than 1,900 human cases and more than 1,600 epizooties of non-human primates (NHPs) reported until April 2018. Previous studies have demonstrated that Yellow fever virus (YFV) causing outbreaks in 2017 formed a monophyletic group.

Ants’ higher taxa as surrogates of species richness in a chronosequence of fallows, old-grown forests and agroforestry systems in the Eastern Amazon, Brazil.

Deforestation in Amazon forests is one of the main causes for biodiversity loss worldwide. Ants are key into the ecosystem because act like engineers; hence, the loss of ants’ biodiversity may be a guide to measure the loss of essential functions into the ecosystems. The aim of this study was to evaluate soil ant’s richness and to estimate whether higher taxa levels (Subfamily and Genus) can be used as surrogates of species richness in different vegetation types (fallows, old-growth forests and agrofore...

Biological processes dominate seasonality of remotely sensed canopy greenness in an Amazon evergreen forest.

Satellite observations of Amazon forests show seasonal and interannual variations, but the underlying biological processes remain debated. Here we combined radiative transfer models (RTMs) with field observations of Amazon forest leaf and canopy characteristics to test three hypotheses for satellite-observed canopy reflectance seasonality: seasonal changes in leaf area index, in canopy-surface leafless crown fraction and/or in leaf demography. Canopy RTMs (PROSAIL and FLiES), driven by these three factors c...

Novel Henneguya spp. (Cnidaria: Myxozoa) from cichlid fish in the Amazon basin cluster by geographic origin.

We describe three new Henneguya spp. (Myxobolidae) found parasitizing two species of cichlid fish from the Amazon basin, Brazil: H. tucunarei n. sp. from gill filaments of Cichla monoculus and H. tapajoensis n. sp. from gill filaments of Cichla pinima, both from the Tapajós River, Pará State and H. jariensis n. sp. in the fins of Cichla monoculus from the Jari River, Amapá State. We based descriptions on myxospore morphology and small subunit ribosomal DNA sequences, and used a phylogenetic analysis to c...

Community public health practicum in the Amazon region of Peru: Student experiences.

This article presents the experience of a community public health practicum in the Amazon region of Peru. The intervention model is based on the social determinants of health within a participatory approach illustrating the impact of the practicum on the students and on the families and communities. This experience can be instructive for developing countries that do not have an established infrastructure to ensure healthcare within their communities; in these countries, students can help to improve health b...

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