Publications by authors named "J F Spear"

Background: The high burden of malaria in Africa is largely due to the presence of competent and adapted Anopheles vector species. With invasive Anopheles stephensi implicated in malaria outbreaks in Africa, understanding the genomic basis of vector-parasite compatibility is essential for assessing the risk of future outbreaks due to this mosquito. Vector compatibility with P.

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The item-based directed-forgetting effect is explained as a difference in how strongly people encode remember-cued over forget-cued targets. In contrast, the production effect is typically explained as a difference in the distinctiveness of the memory of produced over unproduced targets. The procedural alignment of the two effects - directing participants to remember or forget, produce or not - coupled with their different theoretical explanations (i.

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The evolution of suspensory locomotion in primates has been of great interest to biological anthropologists since the early 20th century due to the contentious hypothesis that suspension in hominoids may have been a preadaptation for bipedalism. Studies of fossil hominoids regularly look for traits (or lack thereof) indicative of suspension, but many fossils exhibit potentially confusing mosaics of traits, and there is ongoing debate regarding whether certain traits are truly associated with suspension or whether they might more accurately represent allometric trends, developmental byproducts, or adaptation to cautious climbing. Here, I test the association between 27 morphological traits and forelimb suspension in extant primates using phylogenetically informed comparative methods, a broad comparative sample (nearly 1500 individuals representing 74 genera), and a systematic review of behavioral literature.

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Background: The high burden of malaria in Africa is largely due to the presence of competent and adapted vector species. With invasive implicated in malaria outbreaks in Africa, understanding the genomic basis of vector-parasite compatibility is essential for assessing the risk of future outbreaks due to this mosquito. Vector compatibility with arises from ancient coevolution and involves genes like in and P47Rec in .

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Article Synopsis
  • Silicifying environments, like hot springs, are key for preserving microbial life, providing insights into microbial existence throughout Earth's history and potentially on other planets.* -
  • Research at Steep Cone Geyser in Yellowstone analyzed microbial materials from living systems, silicified areas, and lithified samples to understand how biosignatures change during the processes of silicification and burial.* -
  • The study revealed the presence of distinct microbial communities, especially Cyanobacteria, whose biosignatures changed from living samples to lithified ones, indicating that microbial preservation and community dynamics are complex and significant for understanding past life.*
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