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  1. 3921
    “…We administered measures of concern about the spread of COVID-19 (Coronavirus Threat Scale; CTS), health anxiety, and OCD symptoms to a large sample of community adults in the United States (n = 738) recruited through Amazon MTurk. Results revealed that concern about COVID-19 was moderately and positively correlated with both OCD and health anxiety symptoms, as well as IU. …”
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    Intolerance of uncertainty as a factor linking obsessive-compulsive symptoms, health anxiety and concerns about the spread of the novel coronavirus (COVID-19) in the United States
  2. 3922
    “…Sacha inchi (Plukenetia volubilis L.) is a shrub native to Amazon rainforests that’s of commercial interest as its seeds contain 35–60% edible oil (dry weight). …”
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    Transcriptome analyses reveals the dynamic nature of oil accumulation during seed development of Plukenetia volubilis L.
  3. 3923
    “…AI is already part of our daily life; it is behind face recognition technology, speech recognition in virtual assistants (such as Amazon Alexa, Apple's Siri, Google Assistant and Microsoft Cortana) and self‐driving cars. …”
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    Introduction to artificial intelligence in ultrasound imaging in obstetrics and gynecology
  4. 3924
    “…However, the emerging use of crowdsourcing platforms, such as Amazon Mechanical Turk (MTurk), can potentially reduce the cost of RE dataset construction, even if the same level of quality cannot be guaranteed. …”
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    A hybrid approach toward biomedical relation extraction training corpora: combining distant supervision with crowdsourcing
  5. 3925
    “…Here we analyzed 2 cm resolution RGB imagery collected by a Remotely Piloted Aircraft System (RPAS), also known as drone, together with two decades of bi-annual tree censuses for 2 ha of old growth forest in the Central Amazon. We delineated all crowns visible in the imagery and linked each crown to a tagged stem through field work. …”
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    Integrating high resolution drone imagery and forest inventory to distinguish canopy and understory trees and quantify their contributions to forest structure and dynamics
  6. 3926
    por Root, Eve, Caskie, Grace
    Publicado 2020
    “…A sample of 243 participants (M=63.33, range=55-80 years) were recruited online through Amazon Mechanical Turk to complete measures assessing eMental Health Literacy (eMHEALS) and mental health barriers (BMHSSS-R). …”
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    eMental Health Literacy and the Relationship to Barriers to Mental Health Care
  7. 3927
    “…Data were collected via Amazon’s Mechanical Turk. Chi-square tests were used to examine bivariate associations between pandemic time (pre vs. post) differences in CI and CB. …”
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    Exploration of COVID-19-Based Changes to Caregiver Burden and Caregiving Intensity among Informal Caregivers
  8. 3928
    “…METHODS: An institutional review board–approved, cross‐sectional survey of a non‐probability sample from Amazon Mechanical Turk was administered May 24–25, 2020. …”
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    Barriers to emergency department usage during the COVID‐19 pandemic
  9. 3929
    “…These studies have shown, among others, that Chachapoyas was a crossroads for Coast-Andes-Amazon interactions since very early times. In this study, we examine the following questions: 1) was there pre-Hispanic genetic population substructure in the Chachapoyas sample? …”
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    Genetic assessment reveals no population substructure and divergent regional and sex-specific histories in the Chachapoyas from northeast Peru
  10. 3930
    “…Each image has now been rated across 17 different attributes by a large general United States population sample via Amazon’s Mechanical Turk (n = 1054). Ratings included subjective attributes (e.g., tastiness, healthiness, and favorable texture) as well as estimates of nutrient content (e.g., fat and carbohydrate). …”
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    Food Folio by Columbia Center for Eating Disorders: A Freely Available Food Image Database
  11. 3931
    “…Paleoclimatic projections combined with the current model predicted stable climatic refugia in the central Amazon, Guyana, eastern Colombia, and Panama. We propose a data‐driven geographic range to complement the current IUCN range estimate and that despite its continental distribution, this tropical forest raptor is highly specialized to specific environmental requirements.…”
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    Geographic range estimates and environmental requirements for the harpy eagle derived from spatial models of current and past distribution
  12. 3932
    “…The 638 adults were in 25 states out of the 26 Brazilian states, with the only exception being Roraima, the least populated state in the Amazon. Of all the participating adults, 24%, 20%, and 18% of them were located in Rio de Janeiro state, Santa Catarina state, and São Paulo state respectively. …”
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    Early evidence and predictors of mental distress of adults one month in the COVID-19 epidemic in Brazil
  13. 3933
    “…METHODS: We recruited participants using Amazon’s Mechanical Turk (MTurk) and screened for disability status (n = 408). …”
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    A cross-sectional analysis of trust of information and COVID-19 preventative practices among people with disabilities
  14. 3934
    “…Procedures: An online Amazon mTurk survey about climate change and the perceived effects on client-owned dogs and cats was distributed to pet owners. …”
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    Client Choice May Provide an Economic Incentive for Veterinary Practices to Invest in Sustainable Infrastructure and Climate Change Education
  15. 3935
    “…Additionally, we also detected viral GUAPV RNA in a plasma sample of an individual febrile from the Amazon region (North of Brazil). Although GUAPV did not replicate in tested mammalian cells, 3′UTR secondary structures duplication and codon usage index were similar to pathogenic flavivirus.…”
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    Guapiaçu virus, a new insect-specific flavivirus isolated from two species of Aedes mosquitoes from Brazil
  16. 3936
    “…The bacterial microbiome of adult (males and females) and nymph Rhipicephalus microplus ticks collected from a collared peccary, Pecari tajacu, captured in the rural area of Botijón Village in the Amazon region of Madre de Dios, Peru, was evaluated using metagenomics. …”
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    Characterization of the bacterial microbiome of Rhipicephalus (Boophilus) microplus collected from Pecari tajacu “Sajino” Madre de Dios, Peru
  17. 3937
    “…Virola surinamensis is a forest species widely distributed in the estuaries of the Amazon. These ecosystems are susceptible to contamination by Cadmium (Cd), indicating that the plant has strategies for tolerating this metal. …”
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    Biochemical metabolism of young plants of Ucuúba (Virola surinamensis) in the presence of cadmium
  18. 3938
    “…We analyzed data on 11 metallic deposits throughout Ecuador and a major oilfield in the Ecuadorian Amazon basin. We used geographic information systems to analyze the spatial distribution of these reservoirs and their mineral compositions. …”
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    Artisanal and Small Gold Mining and Petroleum Production as Potential Sources of Heavy Metal Contamination in Ecuador: A Call to Action
  19. 3939
    “…In this study, the microalgal strain Chlamydomonas biconvexa Embrapa|LBA40, originally isolated from a sugarcane vinasse stabilization pond, was selected among 17 strains tested for growth in POME retrieved from anaerobic ponds of a palm oil industrial plant located within the Amazon rainforest region. During cultivation in POME, C. biconvexa Embrapa|LBA40 biomass productivity reached 190.60 mgDW • L(-1) • d(-1) using 15L airlift flat plate photobioreactors. …”
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    Biochemical and phylogenetic characterization of the wastewater tolerant Chlamydomonas biconvexa Embrapa|LBA40 strain cultivated in palm oil mill effluent
  20. 3940
    “…METHODS: Participants include 400 workers from Amazon’s Mechanical Turk aged ≥ 18 years and US residents. …”
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    The Role of Risk Perceptions and Affective Consequences in COVID-19 Protective Behaviors
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