Results 181 to 190 of about 2,684,140 (341)

A força do empresariado no Brasil e na Argentina [PDF]

open access: diamond, 1998
Iris Walquiria Campos, Mónica Arroyo
openalex   +1 more source

A Redox‐Tunable Carborane Crown: Toward Highly Selective Electrochemical Lithium Capture

open access: yesChemistry – A European Journal, EarlyView.
Electrochemical reduction transforms a new carborane–crown into a potent 2e− reduced nido anion with a redox‐tunable cavity that captures Li⁺ selectively over Na⁺ and K⁺. The coupling of electronic control and size‐matched binding offers a blueprint for selective, rapid lithium recovery for next‐generation direct lithium extraction. Abstract Lithium is
Shannon Heinrich   +6 more
wiley   +1 more source

A predictive model for early intubation in patients with COVID-19-induced acute hypoxemic respiratory failure under awake prone position. [PDF]

open access: yesAnn Intensive Care
Morales-Quinteros L   +10 more
europepmc   +1 more source

Restricted Tweedie stochastic block models

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract The stochastic block model (SBM) is a widely used framework for community detection in networks, where the network structure is typically represented by an adjacency matrix. However, conventional SBMs are not directly applicable to an adjacency matrix that consists of nonnegative zero‐inflated continuous edge weights.
Jie Jian, Mu Zhu, Peijun Sang
wiley   +1 more source

Optimal dividends for a NatCat insurer in the presence of a climate tipping point

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract We study optimal dividend strategies for an insurance company facing natural catastrophe claims, anticipating the arrival of a climate tipping point after which the claim intensity and/or the claim size distribution of the underlying risks deteriorates irreversibly.
Hansjörg Albrecher   +2 more
wiley   +1 more source

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