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  1. 4221
    “…We investigated changes in the severity of obsessive-compulsive and related disorders (OCRDs) symptoms as a result of the COVID-19 pandemic. An Amazon Mechanical Turk sample of 829 individuals was evaluated with a series of instruments assessing the severity of the OCRDs before and during the pandemic. …”
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    Correlates of obsessive-compulsive and related disorders symptom severity during the COVID-19 pandemic
  2. 4222
    “…Total beta diversity and turnover portions were separated into two faunistic groups, one in northern and the other in southern Brazil. The Amazon has higher beta diversity than what was predicted by the null models. …”
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    Protected areas are not effective for the conservation of freshwater insects in Brazil
  3. 4223
    “…Methods: Respondents (N = 285; male = 172, female = 113) recruited from Amazon Mechanical Turk rated acceptability and priority that hypothetical persons representing nine target health conditions expected to influence transplant success (including a SUD) receive an organ transplant and resuscitation via a survey hosted by Qualtrics. …”
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    Attitudes Toward Organ Donation for Persons Who Have a Substance Use Disorder Relative to Other Health Conditions
  4. 4224
    “…BACKGROUND: Prior studies have demonstrated the safety risks when patients and consumers use conversational assistants such as Apple’s Siri and Amazon’s Alexa for obtaining medical information. OBJECTIVE: The aim of this study is to evaluate two approaches to reducing the likelihood that patients or consumers will act on the potentially harmful medical information they receive from conversational assistants. …”
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    Mitigating Patient and Consumer Safety Risks When Using Conversational Assistants for Medical Information: Exploratory Mixed Methods Experiment
  5. 4225
    “…Participants (N=156) aged 55+ completed a Qualtrics questionnaire via Amazon Mechanical Turk; demographic, social contact, and technology use data were collected. …”
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    Talking through Technology: Maintaining Essential Contacts with Older Adults During the Covid-19 Pandemic
  6. 4226
    “…Participants (N=652) aged 19+ completed a questionnaire via Amazon Mechanical Turk; demographic, socialization, and technology-use data were collected. …”
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    Effect of the SARS-CoV-2 Pandemic on Technology Use: In-Person versus Video-Chat Communication
  7. 4227
    por Yang, Zhisheng, Cheng, Jinyong
    Publicado 2021
    “…The proposed framework SSN_GATNE-T was tested for two different types of datasets, Amazon and YouTube, using three evaluation indices, ROC-AUC (receiver operating characteristic-area under curve), PR-AUC (precision recall-area under curve) and F1 (F1-score), and found that SSN_GATNE-T improved on all three evaluation indices compared to the mainstream recommendation models currently in existence. …”
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    Recommendation algorithm based on attributed multiplex heterogeneous network
  8. 4228
    “…Halvade Somatic can be executed on a variety of compute platforms, including Amazon EC2 and Google Cloud. CONCLUSIONS: To our knowledge, Halvade Somatic is the first somatic variant calling pipeline that leverages Big Data processing platforms and provides reliable, scalable performance. …”
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    Halvade somatic: Somatic variant calling with Apache Spark
  9. 4229
    “…Clones of Contanama, Iquitos, Marañon, Nanay and unknown derived from Upper Amazon parentage had less DI at the end of the study. …”
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    Field evaluation of the impact of cocoa swollen shoot virus disease infection on yield traits of different cocoa (Theobroma cacao L.) clones in Ghana
  10. 4230
    “…One sample (recruited via the Autism Spectrum Program of Excellence, n = 201) was enriched for autism traits while the other two (recruited via Amazon Mechanical Turk, n = 624 and Facebook, n = 929) drew from the general population. …”
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    Investigating the relationships between resilience, autism-related quantitative traits, and mental health outcomes among adults during the COVID-19 pandemic
  11. 4231
    “…The metagenomes with the most important viral sequences in the analyzed environmental models were 1) aquatic samples from the Amazon River, 2) sewage from Brasilia, and 3) soil from the state of São Paulo, while the models of animal transmission were detected in mosquitoes from Rio Janeiro and Bats from Amazonia. …”
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    Exploring Virome Diversity in Public Data in South America as an Approach for Detecting Viral Sources From Potentially Emerging Viruses
  12. 4232
    “…METHODS/STUDY POPULATION: Participants (N = 947) were young adults (<30 years old) recruited from Amazon’s Mechanical Turk based on smoking (never, former, and current smokers) and JUUL use status (never and current users), resulting in 6 use groups. …”
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    4367 Exploratory evaluation of an online educational intervention for JUUL use
  13. 4233
    “…Our outcomes revealed that the effective diversity (as well as the richness, abundance, and Shannon–Weaver index) for both birds and parasite lineages was higher in Amazon basin ecoregions. Furthermore, we also showed that ecoregions with greater diversity of bird species also had high parasite richness, hence suggesting that host community is crucial in explaining parasite richness. …”
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    Diversity and host assemblage of avian haemosporidians in different terrestrial ecoregions of Peru
  14. 4234
    “…A review was conducted on four major app databases (phase I): National Health Service (NHS) Apps Library, Google Play Store, Apple App Store and Amazon Appstore. A systematic literature review (phase II) was conducted to identify studies for included apps in phase I of our study. …”
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    A Review of Smartphone Apps Used for Toric Intraocular Lens Calculation and Alignment
  15. 4235
    “…METHODS: We recruited users of Amazon Mechanical Turk (Seattle, WA) to participate in a survey to elucidate perceptions of COVID-19 risk associated with a visit to the ED. …”
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    Populational Perceptions Regarding Decision to Visit the Emergency Room with Chest Pain During COVID-19
  16. 4236
    “…We conducted a longitudinal study using a convenience sample of participants recruited via Amazon's Mechanical Turk (MTurk) platform between March 30 and April 7, 2020, and 8 months into the outbreak, from November 2 to November 21, 2020. …”
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    Persistent effects of the COVID-19 pandemic on diet, exercise, risk for food insecurity, and quality of life: A longitudinal study among U.S. adults
  17. 4237
    “…In this study, we evaluated the performance of droplet digital PCR (ddPCR) to detect Plasmodium DNA obtained from saliva samples (whole saliva and buccal swab) of 157 individuals exposed to malaria transmission from the Brazilian Amazon region. We used the highly sensitive ddPCR method with non-ribosomal multicopy targets for Plasmodium vivax (Pvr47) and Plasmodium falciparum (Pfr364). …”
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    Improving the Molecular Diagnosis of Malaria: Droplet Digital PCR-Based Method Using Saliva as a DNA Source
  18. 4238
    “…The study population consists of 1000 individuals recruited from the crowdsourcing platforms, subreddits r/Health, r/SampleSize, and r/GeneticCounseling and Amazon Mechanical Turk. Eligible participants must be U.S. adults who know at least two first-degree relatives with at least one condition. …”
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    334 Web-based Methods for Family Health History Collection
  19. 4239
    “…METHODS: In this cross-sectional survey study, adult U.S. residents were surveyed using Amazon Mechanical Turk, a validated survey tool. Data included demographics and the relative importance of both pre-office and in-office factors that determine how patients select an orthopaedic sports medicine surgeon. …”
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    Surgeon Personality, Time Spent With the Patient, and Quality of Facilities Are the Most Important Factors to Patients in Selecting an Orthopaedic Sports Medicine Surgeon
  20. 4240
    “…Howard) is a tree of 10–27 m tall popularly known as “envira-bobó”, “envira-fofa”, “envireira”, “embira”, “embira-branca”, “embira-preta”, envira-branca”, and “envira-preta”, which can be found in the Brazilian Amazon biome. In this study, we evaluated the cytotoxic and antitumor effects of the essential oil (EO) obtained from the leaves of G. olivacea against liver cancer using HepG2 cells as a model. …”
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    Antitumor Effect of Guatteria olivacea R. E. Fr. (Annonaceae) Leaf Essential Oil in Liver Cancer
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