Results 111 to 120 of about 172,406 (286)

Thermal, Elastic and Seismic Signature of High-Resolution Mantle Circulation Models [PDF]

open access: yes, 2009
A long-standing question in the study of Earth’s deep interior is the origin of seismic mantle heterogeneity. The challenge is to efficiently mine the wealth of information available in complex seismic waveforms and to separate the potential ...
Schuberth, Bernhard
core   +1 more source

Stability of (Mg,Fe)SiO3 perovskite and the structure of the lowermost mantle [PDF]

open access: yes, 1992
Thermodynamic analysis shows that (Mg,Fe)SiO3 perovskite is stable throughout the likely pressure, temperature and compositional regime of the Earth's mantle.
Bukowinski, MST, Stixrude, L
core  

Heterogeneous Exhumation Mechanisms in Neoproterozoic Collisional Metamorphism: P–T Constraints From Pelotas and Punta del Este Terranes, Southern Brazil and Uruguay

open access: yesGeological Journal, EarlyView.
Petrography, thermobarometry, and pseudosection modelling reveal peak metamorphic conditions of 3–7.5 kbar and 520°C–800°C in Tonian‐Cryogenian orthogneisses of the Dom Feliciano Belt. Metamorphic field gradients of 27°C/km–39°C/km and variable exhumation mechanisms support correlation of these units as remnants of a Himalayan‐type Piratini Orogeny ...
Thaiane Niederauer‐Santos   +6 more
wiley   +1 more source

Miocene to Quaternary Tectonostratigraphic Evolution of the Northern Section of the Burdur‐Fethiye Shear Zone, South‐Western Türkiye

open access: yesGeological Journal, EarlyView.
New zircon ages reveal that lacustrine sedimentation initiated in the Late Miocene (Messinian), revising earlier Pliocene age assignments. The study results support the interpretation of the northern BFSZ as a broad left‐lateral transtensional shear zone rather than a discrete sinistral fault or simple extensional graben array.
İrem Elitez   +3 more
wiley   +1 more source

Human biomarker navigator

open access: yesiMeta, EarlyView.
The Human Biomarker Navigator integrates the disease continuum, biomarker dynamics, cross‐organ biomarker networks, biomarker classification, and technology‐driven paradigms. It maps how biomarkers link multi‐system physiology and pathology across the nervous, respiratory, endocrine, circulatory, immune, digestive, urinary, reproductive, and ...
Meng‐Yao Li   +29 more
wiley   +1 more source

Comparison of Cranial Ultrasound and Amplitude‐Integrated Electroencephalography in Predicting Neurodevelopmental Outcomes in Neonates With Hypoxic–Ischemic Encephalopathy: A Systematic Review and Meta‐Analysis

open access: yesJournal of Clinical Ultrasound, EarlyView.
In neonates with hypoxic–ischemic encephalopathy (HIE), adverse neurodevelopmental outcomes (NDO) remain common. Amplitude‐integrated EEG demonstrates strong prognostic value for early prediction, while cranial ultrasound (cUS) provides complementary but less definitive information.
Meirong Shu   +6 more
wiley   +1 more source

Amyloid‐β–Related Cortical Susceptibility Alterations in Individuals Under Assessment for Alzheimer's Disease: A χ‐Separation Study

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Assessment of amyloid‐β (Aβ) burden and associated iron deposition and neurodegeneration is important for Alzheimer's disease (AD) management. Although quantitative susceptibility mapping (QSM) detects iron and myelin changes, conventional metrics suffer from signal cancelation between paramagnetic and diamagnetic components ...
Hiroyuki Tatekawa   +14 more
wiley   +1 more source

Study on the Influence of Mantles on Plants’ Water Economizing Effects in Stereo Virescence

open access: yesShuitu baochi yanjiu, 2006
As a form of virescence,stereo virescence needs less investment but takes effect quicker,and its effect is marvelous especially in cloverleaf junction projects.But it’s difficult to maintain cloverleaf junctions,especially in adding soil water content.It
QU Zhi-qiang~1   +2 more
doaj  

P-Wave Arrival-Time Tomography of the Middle East Using ISC-EHB and Waveform Data

open access: yesSeismica
High-resolution seismic images are essential to gain insights into tectonic and geodynamical processes and assess seismic hazards. We constructed a P-wave model, MEPT (Middle East P-wave Travel-time), of the upper mantle beneath the Middle East and the ...
Ebru Bozdağ   +8 more
doaj   +1 more source

Decoupling glacier retreat and surface stabilization on the Snežnik Plateau (Slovenia), insights from in situ cosmogenic 36Cl exposure and depth‐profile ages

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Glaciokarst landscapes pose distinctive challenges for cosmogenic dating because meltwater and runoff can be rapidly rerouted into ponors and conduit networks, weakening glacier–river coupling and promoting local sediment storage. We reconstruct glacier retreat and postglacial stabilization on the Snežnik Plateau (SW Slovenia) using in situ ...
Onur Altınay   +6 more
wiley   +1 more source

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