Results 121 to 130 of about 321,610 (306)

The Quasi-Biennial Oscillation in atmospheric ozone [PDF]

open access: yes
Examination of the relationship between tropical stratosphere zonal wind and ozone indicate a variable response in latitude with Northern Hemisphere tropics and polar regions and Southern Hemisphere mid-latitudes showing the strongest response with ...
London, J., Oltmans, S. J.
core   +1 more source

Biogeochemical ecology of six species of Sphagnum in Costa Rica [PDF]

open access: yes, 1992
There is very little information on the biogeochemical ecology of Sphagnum species in tropical regions. The majority of the ecological information on Sphagnum species in the tropics consists of general habitat information and pH values that are reported ...
McQueen, Cyrus B., Wolfe, John
core  

Piomiosite tropical Tropical pyomyositis

open access: yesAnais Brasileiros de Dermatologia, 2005
Piomiosite tropical é infecção bacteriana do músculo esquelético, mais freqüente em homens e que se apresenta com edema e hiperestesia na área afetada. Staphylococcus aureus é o agente prevalente. É relatado caso de homem com piomiosite de músculo gastrocnêmio, secundário a pioderma gangrenoso em membro inferior direito.
Angélica de Oliveira Gonçalves   +1 more
openaire   +1 more source

Climate diagnostics [PDF]

open access: yes
Diagnoses of climate fluctuations is examined emphasizing the assemblage of a host of observations, to develop a clearer physical picture of the nature and causal interrelationships of the climate events.

core   +1 more source

Factorization Machine‐Based Active Learning for Functional Materials Design with Optimal Initial Data

open access: yesAdvanced Intelligent Discovery, EarlyView.
This work investigates the optimal initial data size for surrogate‐based active learning in functional material optimization. Using factorization machine (FM)‐based quadratic unconstrained binary optimization (QUBO) surrogates and averaged piecewise linear regression, we show that adequate initial data accelerates convergence, enhances efficiency, and ...
Seongmin Kim, In‐Saeng Suh
wiley   +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

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

Bibliography and checklist of foliicolous lichenized fungi up to 1992 [PDF]

open access: yes, 1993
Bibliographic records are presented of 324 scientific papers on foliicolous lichenized fungi published subsequent to Santesson’s survey of 1952. The 482 species presently known are listed in an alphabetical checklist, with references to important ...
Farkas, Edit E., Sipman, Harrie J. M.
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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