Karen Lopes

Karen Lopes
University of São Paulo | USP · Institute of Mathematical and Computer Sciences (ICMC) (São Carlos)

Master of Science

About

7
Publications
1,199
Reads
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17
Citations
Citations since 2017
7 Research Items
17 Citations
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201720182019202020212022202301234567
201720182019202020212022202301234567
Additional affiliations
December 2021 - present
XP Inc.
Position
  • Engineer
December 2019 - August 2021
Blueshift
Position
  • Engineer
Description
  • In charge of managing data workflows, pipelines, and ETL processes and data analysis. -Knowledge of Python and R -Experience with big data: Hadoop and Spark -Knowledge of Cloud technologies
Education
January 2021 - March 2022
University of São Paulo
Field of study
  • Data Science
March 2017 - March 2019
VALE
Field of study
  • Environmental Sciences
August 2013 - May 2014
University of Colorado Boulder
Field of study
  • Geology

Publications

Publications (7)
Article
Full-text available
Honey pollen samples of Melipona seminigra pernigraMoure & Kerr 1950 sampled between 2017 and 2019 from experimental apiaries installed in campo rupestre on canga (CRC) vegetation of the Serra dos Carajás aimed to evaluated seasonal floral availability of undisturbed and mining-influenced areas. Around one hundred pollen types were identified mainl...
Article
This study addresses paleoclimate influences in a southern Amazonia ecotone based on multiproxy records from lakes of the Carajás region during the last 45k cal a bp. Wet and cool environmental conditions marked the initial deposition in shallow depressions with detrital sediments and high weathering rates until 40k cal a bp. Concomitantly, forest...
Article
For accurate interpretations of palaeopalynological data, it is important to understand the influence of the current vegetation composition and characteristics on the formation of the palynological assemblage recorded in artificial or natural pollen traps. Therefore, in this study, modern pollen rain was characterized using artificial pollen traps...
Preprint
Full-text available
The pollen content of honey samples collected in the years 2017 and 2019 from experimental apiaries of Melipona seminigra pernigra Moure & Kerr 1950 installed in campo rupestre on canga (CRC) vegetation of the Serra dos Carajás, southeastern Amazonia, was analyzed to understand the local variability of floral resources occurring on natural and dist...
Preprint
Full-text available
Government and companies have tried to incorporate environmental consciousness into business over the last decades, especially in mining activities that may have irreversible impacts on the environment, especially in areas considered hotspots of endemism such as montane savanna (canga vegetation). Carajás region, southeastern Amazonia, presents the...
Preprint
Upland lakes (ULs) of the Carajás, southeastern Amazonia, have been intensively studied to their evolution during the Quaternary, as well as the development of the associated biota. In this review, several classical and modern approaches from structural geology to the pollen rain and sedimentary data which cover an area of around 41,300 km 2 were c...
Article
Full-text available
AAAS (the publisher of Science ) recently launched [www.forceforscience.org][1], a new website to facilitate science advocacy. The site offers news, resources, and information about upcoming events for both scientists and the public. By way of introduction, we asked these questions: Why is science

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