Results 181 to 190 of about 3,568,336 (394)

Cuffed vs. uncuffed tracheal tubes in children: a randomised controlled trial comparing leak, tidal volume and complications

open access: yesAnaesthesia, 2018
N. Chambers   +10 more
semanticscholar   +1 more source

Whitings in the Red Sea

open access: yesThe Depositional Record, EarlyView.
We present the first documentation of whitings in the Red Sea, observed in a lagoonal environment. These events are linked to cascading offshore dense waters that liberate trapped sea floor nutrients, triggering algal blooms and elevating alkalinity, which is buffered by direct CaCO3 precipitation—contributing to the accumulation of aragonite mud in ...
Manuel Ariza‐Fuentes   +8 more
wiley   +1 more source

Carbonate sedimentology: An evolved discipline

open access: yesThe Depositional Record, EarlyView.
Abstract Although admired and examined since antiquity, carbonate sediment and rock research really began with Charles Darwin who, during a discovery phase, studied, documented and interpreted their nature in the mid‐19th century. The modern discipline, however, really began after World War II and evolved in two distinct phases.
Noel P. James, Peir K. Pufahl
wiley   +1 more source

Influence of tidal volume on left ventricular stroke volume variation measured by pulse contour analysis in mechanically ventilated patients [PDF]

open access: bronze, 2003
Daniel A. Reuter   +6 more
openalex   +1 more source

Polygonal tepee structures of Arabia

open access: yesThe Depositional Record, EarlyView.
Tepee structures on Sheybarah Island form polygonal microbial cemented crusts in the intertidal. Radiocarbon dating suggests they formed in the Holocene and reflect minor sea‐level changes, highlighting their value as palaeoenvironmental indicators. Satellite surveys identified 126 polygonal features, including coral reefs that may have developed on ...
Pauline Falkenberg   +6 more
wiley   +1 more source

Comparative Evaluation of Changes of Cardiac Output and Stroke Volume due to the Increase of Tidal Volume in Mechanical Ventilation of Pulmonary during Controlled Hypotension by Nitroglycerine and Na Nitroprusside

open access: yesMajallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Bābul, 2014
BACKGROUND AND OBJECTIVE: Mechanical ventilation affects heart and hemodynamic function. Nitroglycerine (NG) and Na Nitroprusside (NPS) are used to apply as deliberate hypotension by decreasing the preload and afterload of heart, respectively. This study
Mohammad Golparvar   +3 more
doaj  

Trends in marine species distribution models: a review of methodological advances and future challenges

open access: yesEcography, EarlyView.
Correlative species distribution models (SDMs) are quantitative tools in biogeography and macroecology. Building upon the ecological niche concept, they correlate environmental covariates to species presence to model habitat suitability and predict species distributions.
Moritz Klaassen   +3 more
wiley   +1 more source

Electrospun Carbon‐Based Materials for Conventional and Hybrid Supercapacitors: Progress and Prospects

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review summarizes recent advances in electrospun carbon‐based electrodes for conventional and hybrid supercapacitors. It introduces electrospinning technology, then systematically examines the design, performance, and applications of various electrospun carbon materials.
Shuhua Yang, Wenqing Fu
wiley   +1 more source

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