Results 111 to 120 of about 116,363 (312)

South American fire activity in spring is linked to Antarctic sea ice variability

open access: yesCommunications Earth & Environment
Fires in South America exert substantial social, economic, and environmental impacts, and are becoming more severe. While tropical oceanic variability is widely recognized as a key driver of fire-conducive conditions, potential influences from mid- and ...
Hongyi Hou   +5 more
doaj   +1 more source

When the River Runs Low: Heterogeneous Impacts of Transportation Disruptions on Local Grain Basis

open access: yesAgribusiness, EarlyView.
ABSTRACT A substantial share of U.S. soybean and corn exports from the Midwest moves by barge along the Mississippi River system to export terminals in the Louisiana Gulf. Transportation costs between Midwestern grain elevators and export terminals create a wedge between prices at these locations, and shocks to these costs are partially passed on to ...
Yuan Zhang   +3 more
wiley   +1 more source

Dissolved manganese in the Atlantic sector of the Southern Ocean [PDF]

open access: yes, 2011
The first comprehensive dataset (492 samples) of dissolved Mn in the Southern Ocean shows extremely low values of 0.04 up to 0.64 nM in the surface waters and a subsurface maximum with an average concentration of 0.31 nM (n=20; S.D.=0.08 nM).
Middag, R.   +19 more
core   +1 more source

Total Chemical Synthesis of Interleukin‐15 and Interleukin‐2: Taming Protein Hydrophobicity and Aggregation by a Versatile Solubilizing Strategy

open access: yesAngewandte Chemie, EarlyView.
A reducible solubilizing tag strategy (RST‐2.0) enables the synthesis, purification and ligation of difficult peptides while being readily removable just during folding, which overcomes the common challenges from protein hydrophobicity and aggregation. With this method, we achieved the first total synthesis of native and N‐glycosylated IL‐15 as well as
Jingwen Zeng   +4 more
wiley   +2 more sources

Subpolar North Atlantic Ocean heat content drives 21st-century Arctic multi-decadal variability in CESM1 LE

open access: yesScientific Reports
Arctic surface temperatures exhibit a pronounced multi-decadal oscillation superimposed on the long-term anthropogenic warming trend, yet its drivers remain poorly understood.
Di Cai, Xianyao Chen
doaj   +1 more source

A Review on Recent Trends of Bioinspired Soft Robotics: Actuators, Control Methods, Materials Selection, Sensors, Challenges, and Future Prospects

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This article reviews the current state of bioinspired soft robotics. The article discusses soft actuators, soft sensors, materials selection, and control methods used in bioinspired soft robotics. It also highlights the challenges and future prospects of this field.
Abhirup Sarker   +2 more
wiley   +1 more source

Modelling wind-driven inter-ocean exchange in the greater Agulhas with the regional ocean modelling system [PDF]

open access: yes, 2014
Includes bibliographical references.Two Regional Ocean Modelling System configurations, AGIO and ARC112, are developed to investigate (1) the structure of the Agulhas leakage, (2) the dynamical link between the leakage and the Agulhas Current, and (3 ...
Loveday, Benjamin
core  

Could changing ocean circulation have destabilized methane hydrate at the Paleocene/Eocene boundary? [PDF]

open access: yes, 2002
During the Paleocene-Eocene Thermal Maximum (PETM, ~55 Ma), marine and terrestrial carbon isotope values exhibit a negative shift of at least 2.5‰, indicative of massive destabilization of marine methane hydrates, releasing ~1100 gigatonnes of methane ...
Marotzke, J. ; https://orcid.org/   +3 more
core   +1 more source

Sustainable Pd‐Catalyzed Aminations “on Dirty Water”

open access: yesAngewandte Chemie, EarlyView.
Aminations, done safely yet neat, and therefore, quickly, using low levels of Pd, in “dirty water” that must contain 30% KOH; not NaOH, and not at 5%,10%, 20%, 40%, or 50% KOH. Moreover, no base sensitivity of functional groups! Very cool. Thank you, Nature.
Erfan Oftadeh   +4 more
wiley   +2 more sources

Human-induced intensified seasonal cycle of sea surface temperature

open access: yesNature Communications
Changes in the seasonal cycle of sea surface temperature (SST) have far-reaching ecological and societal implications. Previous studies have found an intensified SST seasonal cycle under global warming, but whether such changes have emerged in historical
Fukai Liu, Fengfei Song, Yiyong Luo
doaj   +1 more source

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