Results 61 to 70 of about 6,898 (176)

Source and exploration potential of the ultra-deep Cambrian petroleum in Well XT-1, Tarim Basin, NW China

Petroleum Exploration and Development
The ultra-deep (deeper than 8 000 m) petroleum in the platform-basin zones of the Tarim Basin has been found mainly in the Lower Paleozoic reservoirs located to the east of the strike-slip fault F5 in the north depression.
Jin SU, Xiaomei WANG, Chengdong Zhang, Xianzhang YANG, Jin LI, Yupeng YANG, Haizu ZHANG, Yu FANG, Chunlong YANG, Chenchen FANG, Yalong WANG, Caiyun WEI, Na WENG, Shuichang ZHANG   +13 more
doaj   +1 more source

In silico predictions of action potential propagation in doxorubicin cardiotoxicity: A parametric study using preclinical 3D magnetic resonance imaging‐based fibrotic left ventricle models

The Journal of Physiology, EarlyView.
Abstract figure legend Schematic overview of the study's methodology and key findings. In a preclinical swine model, doxorubicin administration induced cardiotoxicity, characterized by diffuse fibrotic remodelling and altered electrical function, as assessed by magnetic resonance (MR) imaging and electrophysiological mapping.
Javier Villar‐Valero, Jairo Rodríguez Padilla, Nicolas Cedilnik, Buntheng Ly, Juan F. Gomez, Maxime Sermesant, Mihaela Pop, Beatriz Trenor   +7 more
wiley   +1 more source

Clumped Isotope Temperature Reconstruction Using Stalagmite Drip Cups

Rapid Communications in Mass Spectrometry, Volume 40, Issue 8, 30 April 2026.
ABSTRACT Rationale Application of clumped isotope palaeothermometry to speleothems (carbonate cave deposits, e.g., stalagmites and flowstones) has been restricted largely to subaqueous samples because of kinetic fractionation processes that occur during subaerial speleothem formation, which lead to erroneously high inferred temperatures.
Stuart Umbo, Maria Box, Aviva Intveld, Jack Longman, Sevasti Modestou, Stacy A. Carolin, Daniel H. James, Alfredo Martínez‐García, Carlos Peraza Lope, Mark Brenner, David Hodell, Sebastian F. M. Breitenbach   +11 more
wiley   +1 more source

Limit cycles bifurcating from the periodic annulus of cubic homogeneous polynomial centers

Electronic Journal of Differential Equations, 2015
We obtain an explicit polynomial whose simple positive real roots provide the limit cycles which bifurcate from the periodic orbits of any cubic homogeneous polynomial center when it is perturbed inside the class of all polynomial differential systems
Jaume Llibre, Bruno D. Lopes, Jaime R. de Moraes   +2 more
doaj  

Renormalization group and isochronous oscillations

, 2011
We show how the condition of isochronicity can be studied for two dimensional systems in the renormalization group (RG) context. We find a necessary condition for the isochronicity of the Cherkas and another class of cubic systems.
A. Ghose Choudhury, A. Sarkar, A. Sarkar, A. Sarkar, C. Antón, C.J. Christopher, D. Banerjee, F. Calogero, F. Calogero, F. Calogero, F. Calogero, F. Calogero, J. Chavarriga, J.K. Bhattacharjee, J.M. Dixon, J.M. Hill, J.S.R. Chisholm, L.A. Cherkas, L.Y. Chen, L.Y. Chen, M. Asorey, M. Bardet, N.G. Lloyd, P.G.L. Leach, V.K. Chandrasekhar   +24 more
core   +1 more source

Imperfection in Semiconductors Leading to High Performance Devices

Advanced Science, Volume 13, Issue 13, 3 March 2026.
Crystalline perfection is typically pursued in semiconductors to enhance device performance. However, through modeling and experimental work, we show that defects can be strategically employed in a specific detection regime to increase sensitivity to extreme values. GaN diodes are demonstrated to effectively detect high‐energy proton beams at fluxes as
Jean‐Yves Duboz, Matilde Siviero, Lucas Lesourd, Eric Frayssinet, Sebastien Chenot, Petter Hofverberg, Sullivan Marafico, Marie Vidal, Maxime Hugues   +8 more
wiley   +1 more source

Direct photon emission in heavy ion collisions from microscopic transport theory and fluid dynamics : XLVIII International Winter Meeting on Nuclear Physics, BORMIO2010, January 25 - 29, 2010, Bormio, Italy [PDF]

, 2012
Direct photon emission in heavy-ion collisions is calculated within a relativistic micro+macro hybrid model and compared to the microscopic transport model UrQMD.
Bleicher, Marcus, Bäuchle, Björn
core  

Directed flow, a signal for the phase transition in Relativistic Nuclear Collisions?

, 2014
The sign change of the slope of the directed flow of baryons has been predicted as a signal for a first order phase transition within fluid dynamical calculations.
Auvinen, J., Bleicher, M., Petersen, H., Steinheimer, J., Stöcker, H.   +4 more
core   +1 more source

New Zealand Geological Timescale 2025

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
New Zealand Geological Timescale 2025 (NZGT 2025) is the first comprehensive update and revision of the New Zealand Geological Timescale in a decade. The criteria used to establish age ranges of New Zealand Stages within the NZGT have been reviewed, calibrated, and revised where required against the 2023/04 International Chronostratigraphic Chart and ...
Christopher D. Clowes, James S. Crampton, Kyle J. Bland, J. Ian Raine, Andrew F. Boyes, Hamish J. Campbell, Erica M. Crouch, Martin P. Crundwell, Neville Hudson, Elizabeth M. Kennedy, Donald A. B. MacFarlan, Hugh E. G. Morgans, Marcus D. Richards, Matthew W. Sagar   +13 more
wiley   +1 more source

Limit cycles in piecewise smooth perturbations of a quartic isochronous center

Electronic Journal of Differential Equations, 2019
This article concerns the bifurcation of limit cycles from a quartic integrable and non-Hamiltonian system. By using the first order averaging method and some mathematical technique on estimating the number of the zeros, we show that under a class of ...
Haifeng Song, Linping Peng, Yong Cui
doaj