Results 91 to 100 of about 4,369 (277)

Vers una teoria global de defensa química en plantes : el cas de alcaloides [PDF]

open access: yes, 1997
Els alcaloides són un grup de productes del metabolisme secundari altament divers i distribuït majoritàriament en les angiospermes. En les plantes se'ls atribueix com a principal funció la defensa química contra herbívors i patògens.
Castells, Eva, Peñuelas, Josep
core   +1 more source

RAMS: Residual‐Based Adversarial‐Gradient Moving Sample Method for Scientific Machine Learning in Solving Partial Differential Equations

open access: yesAdvanced Intelligent Discovery, EarlyView.
We propose a residual‐based adversarial‐gradient moving sample (RAMS) method for scientific machine learning that treats samples as trainable variables and updates them to maximize the physics residual, thereby effectively concentrating samples in inadequately learned regions.
Weihang Ouyang   +4 more
wiley   +1 more source

Electrolyte‐Replacement‐Free Continuous Electrocatalytic Desalination Coupled With CO2 Reduction at Record Throughput and Low Cost

open access: yesAngewandte Chemie, EarlyView.
A continuous electrocatalytic desalination system powered by CO2 electroreduction that eliminates electrolyte replacement through a self‐balancing circulating design. Using a five‐chamber architecture and an efficient cobalt‐based catalyst, it achieves ultrafast salt removal, high CO production efficiency, and stable long‐term operation, offering a ...
Man Liang   +8 more
wiley   +2 more sources

Brain regions controlling courtship behavior in the bluehead wrasse. [PDF]

open access: yesCurr Biol, 2023
Luong K   +4 more
europepmc   +1 more source

Tropical medicine in and out of the tropics

open access: yesThe Lancet, 1996
D.J. Weatherall   +20 more
openaire   +2 more sources

Liquid Jetting‐Based Miniature Robotic Navigation in Confined Fluidic Spaces

open access: yesAdvanced Intelligent Systems, EarlyView.
We introduce a new class of liquid‐jetting‐based miniature robots (JetBots) ranging in size from mm‐to‐cm, featuring a unified approach in design, fabrication, and actuation. They demonstrate fast locomotion (30.3 cm/s), rapid steering (648.8°/s), and diverse functions, such as puncturing soft materials and unlimited cargo sampling and delivery, paving
Debasish Roy, Tianlu Wang
wiley   +1 more source

Ictiofauna del Pliocè del barranc de sa Talaia (Mallorca, Illes Balears, Mediterrània Occidental). Implicacions paleoambientals [PDF]

open access: yes
S’estudien les restes fòssils de peixos, trobades al Pliocè del barranc de sa Talaia, situat al NW de la conca sedimentària de Palma (Mallorca). A partir de les característiques paleontològiques, actualisme biològic i entorn geològic, es realitza una ...
Mas, Guillem
core  

Biodièsel : impacte en origen del biodièsel consumit a Catalunya i a Espanya [PDF]

open access: yes, 2012
Actualment la situació del mercat espanyol i català del biodièsel es caracteritza per les grans importacions d'oli de palma africana. Per a produir aquesta matèria primera s'estan establint plantacions a gran escala d'Elaeis guineensis (palma africana) a
Figueras Alsius, Mireia   +2 more
core  

Evaluating the African arid corridor hypothesis: A meta‐analysis including the phylogenetic and biogeographical history of Sesamothamnus

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise We examined the African arid corridor (AAC) disjunction pattern of vascular plants between northeastern and southwestern Africa in the context of geological and climatic events since the late Miocene. We developed a phylogenetic and biogeographical framework for the arid‐adapted genus Sesamothamnus (Pedaliaceae), a classic example of ...
John G. Zaborsky   +6 more
wiley   +1 more source

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