Publications by authors named "C Schwertner"
Cyrtomenus includes seven species arranged in two subgenera and belongs to the most diverse subfamily of burrower bugs, Cydninae. The species present polyphagous habits, and at least two species are considered crop pests. We conduct a phylogenetic analysis based on morphological characters and two weighting schemes to test its monophyly and the validation of the included subgenera, providing for the first time a phylogenetic hypothesis for the genus.
View Article and Find Full Text PDFOptimal Operation of Cryogenic Calorimeters Through Deep Reinforcement Learning.
Comput Softw Big Sci
May 2024
Cryogenic phonon detectors with transition-edge sensors achieve the best sensitivity to sub-GeV/c dark matter interactions with nuclei in current direct detection experiments. In such devices, the temperature of the thermometer and the bias current in its readout circuit need careful optimization to achieve optimal detector performance. This task is not trivial and is typically done manually by an expert.
View Article and Find Full Text PDFArticle Synopsis
- Latin America and the Caribbean (LAC) host a rich biodiversity, particularly with the vast variety of true bugs (Hemiptera: Heteroptera), which are important for ecosystems, agriculture, and public health.
- Between 1998 and 2022, a total of 1,651 studies on true bugs in LAC were identified, with significant growth observed, especially in 2021.
- Research mainly focused on taxonomy, faunistic inventories, pest species biology, and community ecology, highlighting the need for continued work on Heteroptera taxonomy to enhance understanding in related scientific fields.
Background: Soybean is the third-greatest global commodity crop with respect to grain production, Brazil is the largest soybean producer in the world. We performed the first extensive survey including all the five main soybean cultivation regions in Brazil over three seasons (2018/2019, 2019/2020, and 2020/2021). A total of 2386 localities were sampled, corresponding to 145 municipalities in 11 states.
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- Piezodorus guildinii is a significant soybean pest in the Americas, but its spread is not well understood.
- A phylogeographic study analyzed gene sequences from P. guildinii collected across Brazil, revealing that the species likely originated in the Caribbean around 0.97 million years ago, with no evidence of secondary spread to Brazil.
- The Brazilian populations exhibit genetic variation across soybean-producing regions and are experiencing demographic expansion, suggesting a growing impact on soybean farming in the future.