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Energy flow structure and role of keystone groups in shallow water environments in Isla del Coco, Costa Rica, Eastern Tropical Pacific
(2019)
Isla del Coco (Costa Rica) forms part of the five oceanic islands of the Eastern Tropical Pacific and is well known for its high biodiversity and great endemism. While several marine biological and oceanographical surveys ...
Synthesis and characterization of new mixed-valent Mn(II)/Mn(III) and mixed metal Ni/Mn complexes
(2015)
Microwave assisted synthesis and bench-top reactions are compared for Mn and Mn/Ni reaction systems with substituted salicylic acid (2-hydroxy-6-isopropyl-3-methylbenzoic-acid (SALOH2). When Mn salts are used, the microwave ...
Diterpenes from Fleischmannia hymenophylla and Brickellia laciniata
(1989)
The aerial parts of Fleischmannia hymenolepis gave in addition to phytol and sesamin a new derivative of beyerene named hymenophylloide. The aerial parts of Brickellia laciniata afforded several new labdane derivatives and ...
Fungi for the bioremediation of pharmaceutical-derived pollutants: A bioengineering approach to water treatment
(2021-07-01)
The excessive amount of pharmaceutical compounds (PhCs) released into aquatic environments poses a risk to humans, wildlife, and environmental health. It is a serious problem that requires urgent attention. In this work, ...
Germacranolides and other constituents from ageratzna species
(1988)
The aerial parts of Ageratina anisochroma gave several thymol derivatives including five new ones, a hydroxypiperitol glucoside, some substituted benzyl benzoates and several germacranolides related to provincialin. From ...
Dopant-Free Hole-Transport Materials with Germanium Compounds Bearing Pseudohalide and Chalcogenide Moieties for Perovskite Solar Cells
(2020-10-04)
Hole-transport materials (HTMs) are key electronic components for the functioning of perovskite solar cells (PSCs) as they extract the photogenerated holes from the perovskite to be transported subsequently to the back ...
Taxonomic revision of the peculiar genus Xylopodia (Loasaceae) with a new species from Argentina and Bolivia demonstrating an atypical trans-Andean disjunction
(2022)
Loasaceae subfam. Loasoideae are a nearly exclusively American plant group with a center of diversity in Peru. Numerous new taxa have been described over the past decades; one of the most striking discoveries was that of ...
Formación Bagaces: caracterización de sus unidades para la identificación de depósitos y litofacies
Bagaces formation: characterization of units for identification of deposits and lithofacies
(2019-06-01)
La base de la cordillera volcánica de Guanacaste está conformada, en su mayoría, por una potente secuencia de depósitos piroclásticos de edades entre el Mioceno y el Pleistoceno, las cuales corresponden a las formaciones ...