Results 111 to 120 of about 165,800 (306)

Rapid determination of organic carbon in carbonate rocks.

Journal of the Japanese Association for Petroleum Technology, 1990
A rapid method for determination of organic carbon in carbonate rocks has been developed to replace the normal procedure in which carbonate samples are pretreated with hydrochloric acid to decompose carbonate minerals. The method involves dry combustion of organic material in an oxygen stream and subsequent measuring of carbon dioxide (CO2) generated ...
Makoto YAMADA, Tsutomu MACHIHARA
openaire   +2 more sources

Lymphoid‐Tissue‐on‐Chip Recapitulates Human Antibody Responses In Vitro

Advanced Science, EarlyView.
The presented lymphoid‐tissue‐on‐chip system allows culture of primary human tonsil cells at organotypic high density under perfusion for up to 4 weeks, emulates immune response to soluble vaccines and vaccination via peripheral antigen‐presenting cells and represents a useful tool to assess cellular interactions during homeostasis, immune responses ...
Claudia Teufel, Anna‐Sophie Schlemmer, Andrea W. Eiken, Zachary W. Wagoner, Dennis Vöhringer, Lena Christ, Alex Dulovic, Patrick Marsall, Madeleine Fandrich, Eduardo J. S. Brás, Julia Marzi, Friederike Bärhold, Julia Philipp, Sven Becker, Lisa E. Wagar, Peter Loskill   +15 more
wiley   +1 more source

Stacked ensemble machine learning for porosity and absolute permeability prediction of carbonate rock plugs. [PDF]

Sci Rep, 2023
Kalule R, Abderrahmane HA, Alameri W, Sassi M.   +3 more
europepmc   +1 more source

AN APPARATUS FOR STUDYING THE DISSOCIATION OF CARBONATE ROCKS [PDF]

Journal of the American Ceramic Society, 1919
n ...
openaire   +2 more sources

Endoplasmic Reticulum Geometry Dictates Neuronal Bursting via Calcium Store Refill Rates and Exposes Selective Neuronal Vulnerability

Advanced Science, EarlyView.
The ER's continuous tubular network is maintained by ER‐shaping proteins whose mutation or dysregulation contributes to neurodegenerative diseases. Here, we show that ER morphology sets the speed of Ca2+ store replenishment between firing events. Disrupting ER continuity slows intra‐ER Ca2+ redistribution from extracellular refill (SOCE) sites, driving
Valentina Davi, Pierre Parutto, Yuyi Zhang, Tasuku Konno, Cecile Crapart, Raquel Pereira, John P. Franklin, Mosab Ali Awadelkareem, Daniel C Maddison, Michael J. Devine, Edgar R. Gomes, Joseph Chambers, Elena Koslover, Edward Avezov   +13 more
wiley   +1 more source

Atmospheric Evolution

, 2017
Earth's atmosphere has evolved as volatile species cycle between the atmosphere, ocean, biomass and the solid Earth. The geochemical, biological and astrophysical processes that control atmospheric evolution are reviewed from an "Earth Systems ...
AA Pavlov, AE Isley, AJ Ridgwell, AJ Watson, AJ Watson, AJ West, AL Roberson, AP Ingersoll, B Byrne, B Byrne, B Marty, B Marty, B Mills, BW Johnson, BW Johnson, C Dessert, C Goldblatt, C Goldblatt, C Goldblatt, C Goldblatt, C Goldblatt, C Sagan, C Sagan, C Sagan, CL Blattler, DAD Evans, DC Catling, DC Catling, DE Ibarra, DL Royer, DM Hunten, DR Hitchcock, DS Abbot, DV Kent, EE Stüeken, EG Nisbet, EG Nisbet, ET Wolf, G Feulner, GC Simpson, GE Bebout, HC Urey, HD Holland, J Farquhar, J Hartmann, J Leconte, JCG Walker, JCG Walker, JCG Walker, JD Haqq-Misra, JE Lovelock, JE Lovelock, JE Lovelock, JF Kasting, K Hamano, K Wallmann, KJ Zahnle, KJ Zahnle, KJ Zahnle, KR Anderson, L Li, L Li, LM Och, LR Kump, M Komabayashi, M Popp, M Voyer Le, ND Sheldon, R Barnes, R Buick, R Rye, R Wordsworth, RA Berner, RA Berner, RA Berner, RD Wordsworth, RE Zeebe, RT Pierrehumbert, S Chapman, S Nakajima, T Matsui, T Owen, TM Donahue, TM Lenton, TM Lenton, TW Lyons, VI Vernadsky, VI Vernadsky, WR Kuhn, Y Goddéris   +89 more
core   +1 more source

Stress History Establishes a Transient Tolerant State That Shapes Antibiotic Survival Upon Resuscitation

Advanced Science, EarlyView.
High‐throughput single‐cell analysis of resuscitating bacteria reveals a starvation‐history‐dependent transiently tolerant subpopulation that survives β$\beta$‐lactam exposure by temporarily reducing growth. Distinct from classical persisters, these actively growing yet dynamically modulated cells dominate survival across clinically relevant antibiotic
Kieran Abbott, Georgeos Hardo, Ruizhe Li, Jack Bradley, Ashraf Zarkan, Somenath Bakshi   +5 more
wiley   +1 more source

New discovery in geotechnics: calcium carbonate induced by plateau freshwater algae

Yantu gongcheng xuebao
Since the research field of calcium carbonate induced by freshwater algae in the plateau is still in the early stage of exploration, this paper focuses on the biological mineralization of freshwater algae on the rock surface under the unique environment ...
SUN Yinlei1 , LI Zhifei1, ZHANG Xianwei2
doaj   +1 more source

Does substrate matter in the deep sea? A comparison of bone, wood, and carbonate rock colonizers. [PDF]

PLoS One, 2022
Pereira OS, Gonzalez J, Mendoza G, Le J, McNeill M, Ontiveros J, Lee RW, Rouse GW, Cortés J, Levin LA.   +9 more
europepmc   +1 more source

Bioinspired Adaptive Leg‐Claw Enables Robust Perching and Grasping for UAVs

Advanced Science, EarlyView.
Inspired by owl limb morphology and bat roosting behavior, this study presents a bioinspired adaptive leg‐claw mechanism that enables UAVs to perform robust and versatile perching and grasping. The design integrates a four‐link tibial structure, tension‐driven deformable feet, and active control, enabling stable perching on various branches and ...
Tianyu Cheng, Shaokun Wang, Jiehan Zou, Guiwen Shi, Zhongxue Gan, I‐Ming Chen, Guo‐Niu Zhu   +6 more
wiley   +1 more source