Results 81 to 90 of about 8,152 (200)

Planar cell polarity genes Frizzled3a, Vangl2, and Scribble are required for spinal commissural axon guidance [PDF]

open access: yes, 2016
Background A fundamental feature of early nervous system development is the guidance of axonal projections to their targets in order to assemble neural circuits that control behavior.
Purdy, Ashley M.   +2 more
core   +2 more sources

Atractocybeloides, eine kleinwüchsige Trilobitengattung aus baltoskandischen Geschieben und ihrem Anstehenden [PDF]

open access: yesFossil Record, 2002
Aus mittel- bis oberordovizischen Geschieben werden fünf Taxa der kleinwüchsigen Trilobitengattung Atractocybeloides vorgestellt, davon die beiden neuen Arten Atractocybeloides nebeni n. sp. und Atractocybeloides oepiki n. sp.
H.-H. Krueger
doaj   +1 more source

Tectonics, geology and origins of Te Riu‐a‐Māui / Zealandia

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 68, Issue 4, Page 531-567, December 2025.
ABSTRACT Te Riu‐a‐Māui / Zealandia is a 95% submerged, five million square km southern hemisphere continent that includes the islands of New Zealand and New Caledonia. For the last 45 million years (Ma) Zealandia has been cut by the Pacific‐Australian plate boundary which today changes character from a west‐dipping subduction zone in the north to ...
Nick Mortimer
wiley   +1 more source

Ichnological discrimination of hemipelagic‐dominated slope versus basin‐floor mudstones: Insights from early Viséan successions of a distally steepened ramp, northern Iran

open access: yesThe Depositional Record, Volume 11, Issue 5, Page 1563-1595, November 2025.
This study integrates sedimentological and ichnological data to reveal the depositional processes and environmental conditions of deep‐water muddy gravity flows in the Mobarak Formation. It highlights distinct ichnocoenoses and bioturbation patterns, offering insights into basin‐floor versus slope mudstones and their implications for hydrocarbon ...
Aram Bayet‐Goll   +2 more
wiley   +1 more source

Geometry and Kinematics of the Hormuz Salt at Jebel Al Dhanna, United Arab Emirates: Implications for Salt Tectonics and Subsurface Storage

open access: yesTectonics, Volume 44, Issue 11, November 2025.
Abstract The United Arab Emirates government is assessing the potential of Hormuz Salt domes for subsurface storage, aligning with the transition toward clean energy systems and carbon reduction goals. However, the geometry, kinematics, and halokinetic evolution of these salt structures remain poorly constrained.
M. Ali, Hamda Alshehhi, Mohammed Y. Ali
wiley   +1 more source

Late Cambrian acritarchs from the Santa Rosita Formation: implications for the Cambrian-Ordovician boundary in the eastern Cordillera of northwest Argentina [PDF]

open access: yes, 2003
Marine phytoplankton from the Late Cambrian are described for the first time in the Eastern Cordillera of northwest Argentina. The acritarch assemblage was recovered from an offshore lower mudstone unit towards the base of the Casa Colorada Member (Santa
Buatois, Luis Alberto   +2 more
core  

Orbitally‐Driven Nutrient Pulses Linked to Early Cambrian Periodic Oxygenation and Animal Radiation

open access: yesGeophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract During the Cambrian Explosion, episodic radiations of major animal phyla occurred in concert with repeated coupled carbon‐sulfur isotope excursions. These isotope patterns are thought to reflect oscillations in atmospheric and shallow‐marine O2, which promoted animal diversification events. However, the driver for oxygenation pulses is unclear.
Yinggang Zhang   +6 more
wiley   +1 more source

Spin-Interaction Effects for Ultralong-range Rydberg Molecules in a Magnetic Field

open access: yes, 2018
We investigate the fine and spin structure of ultralong-range Rydberg molecules exposed to a homogeneous magnetic field. Each molecule consists of a $^{87}$Rb Rydberg atom whose outer electron interacts via spin-dependent $s$- and p-wave scattering with ...
Fey, Christian   +2 more
core   +1 more source

CAMBRIAN CONODONTS ACROSS THE PRE-FURONGIAN TO FURONGIAN INTERVAL IN THE GSSP SECTION AT PAIBI, HUNAN, SOUTH CHINA

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2006
The conterminant base of the Furongian Series and Paibian Stage (Cambrian), as ratified in 2003, is in dark carbonate slope deposits of the Paibi section, Hunan, China, at the FAD of the agnostid trilobite Glyptagnostus reticulatus.
QI YU-PING   +2 more
doaj   +1 more source

Declining Volatility, a General Property of Disparate Systems: From Fossils, to Stocks, to the Stars

open access: yes, 2013
There may be structural principles pertaining to the general behavior of systems that lead to similarities in a variety of different contexts. Classic examples include the descriptive power of fractals, the importance of surface area to volume ...
ADRAIN   +72 more
core   +1 more source

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