Results 31 to 40 of about 26,422 (298)

Energy Landscapes in Chemical Reactions and Transport

ChemPhysChem, Volume 26, Issue 6, March 15, 2025.
Kinetics/dynamics of chemical reactivity and transport of chemical species in a solid are both determined by the energy landscape in which they take place. Discussing common grounds but also distinct differences may help in advancing the understanding in both fields.
Karl‐Michael Weitzel
wiley   +1 more source

Blood Vessel Occlusion by the Layperson Audiovisual Assist Tourniquet (LAVA TQ) Compared to the Combat Application Tourniquet: Randomized Controlled Trial

Western Journal of Emergency Medicine, 2023
Introduction: While windlass-rod style tourniquets stop bleeding in limbs when used by skilled responders, they are less successful in the hands of the untrained or not recently trained public.
Craig Goolsby, Nicole Dacuyan-Faucher, Keke Schuler, Annie Lee, Amit Shah, Jeremy Cannon, Curt Kothera   +6 more
doaj   +1 more source

Optimal mud pressure design using nonlinear failure criteria for wellbores in shaley sedimentary reservoir

Deep Underground Science and Engineering, EarlyView.
The present study uses the Modified Mohr‐Coulomb true‐triaxial failure criterion (MMC_TT), which predicts the strength of rock better than the MGC criterion in laboratory true‐triaxial tests to overcome the limitations. Moreover, based on the data from previously published five vertical wells in the Krishna‐Godavari basin (K‐G basin), an empirical ...
Ravindra K. Burnwal, Aditya Singh
wiley   +1 more source

Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)

Geological Journal, EarlyView.
Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito, Cristiano Leite Sombra, Davy Raeder Brandão, Cleverson Guizan Silva, Sidney Luiz de Matos Mello, Eugênio Vaz dos Santos Neto, Rui Jorge Fernandes Baptista, Ramsés Capilla, Luiz Antônio Pierantoni Gambôa   +8 more
wiley   +1 more source

Comparison of Microbial Diversity of Two Typical Volcanic Soils in Wudalianchi, China

Microorganisms
Volcanic lava is an excellent model of primary succession, in which basalt-associated microorganisms drive the cycling of different elements such as nitrogen, carbon, and other nutrients. Microbial communities in volcanic soils are of particular interest
Qingyang Huang, Fan Yang, Hongjie Cao, Jiahui Cheng, Mingyue Jiang, Maihe Li, Hongwei Ni, Lihong Xie   +7 more
doaj   +1 more source

Comparing the Last Interglacial (MIS 5e) with the present interglacial period (MIS 1) using a multidimensional functional diversity analysis: The marine molluscs from Santa Maria Island (Azores Archipelago, central Atlantic) as a case study

Journal of Quaternary Science, EarlyView.
ABSTRACT Marine fossil records hold outstanding importance for ecological, evolutionary and biogeographical studies. Santa Maria Island in the Azores Archipelago (central Atlantic) features a remarkable marine fossil record spanning from the Pliocene to recent times.
Sérgio P. Ávila, Samuel Arruda, Luís Silva, Ana Hipólito, Rui Quartau, Ricardo S. Ramalho, Patrícia Madeira, Carlos S. Melo, Lara Baptista, Ana Cristina Rebelo, Gustavo M. Martins, Gonçalo Castela Ávila, Mohamed Amine Doukani, Esther Martín‐González, Daniele Scarponi, Alfred Uchman, Markes Johnson   +16 more
wiley   +1 more source

Thermal impacts of basaltic lava flows to buried infrastructure: workflow to determine the hazard

Journal of Applied Volcanology, 2020
Lava flows can cause substantial physical damage to elements of the built environment. Often, lava flow impacts are assumed to be binary, i.e. cause complete damage if the lava flow and asset are in contact, or no damage if there is no direct contact ...
Sophia W. R. Tsang, Jan M. Lindsay, Ben Kennedy, Natalia I. Deligne   +3 more
doaj   +1 more source

Lava Flow Hazard and Its Implication in Geopark Development for the Active Harrat Khaybar Intracontinental Monogenetic Volcanic Field, Saudi Arabia

Land, 2023
Harrat Khaybar is an active monogenetic volcanic field in western Saudi Arabia that hosts spectacular monogenetic volcanoes and a Holocene volcanic cone with extensive lava fields.
Károly Németh, Mohammed Rashad Moufti
doaj   +1 more source

Biogenic Synthesis of Silver and Iron Nanoparticles Derived From Grewia Optiva Leaf Extract: A Novel Approach for Antidiabetic, Anticoagulant and Anti‐Inflammatory Therapies

International Journal of Chemical Kinetics, EarlyView.
ABSTRACT This study presents the green synthesis of silver (Ag‐NPs) and iron nanoparticles (Fe‐NPs) using aqueous leaf extract of Grewia optiva as a natural reducing and stabilizing agent. The extract was prepared using a Kjeldahl apparatus under controlled heating. Nanoparticle synthesis was optimized by varying pH, temperature, and salt concentration,
Muhammad Salman Khan, Khushbakht Asad, Sehrish Asad, Aulia Kanwal, Abdur Rahim, Mina Ziarati, Muhammad Bilal, Nolubabalo Matinise, Farhad Badshah   +8 more
wiley   +1 more source

Source(s) of the Smooth Caloris Exterior Plains on Mercury: Mapping, Remote Analyses, and Scenarios for Future Testing with BepiColombo Data

Remote Sensing
Mercury hosts widespread smooth plains that are concentrated in the Caloris impact basin, in an annulus surrounding the Caloris basin, and in the adjacent northern smooth plains.
Keenan B. Golder, Bradley J. Thomson, Lillian R. Ostrach, Devon M. Burr, Joshua P. Emery, Harald Hiesinger   +5 more
doaj   +1 more source