Results 181 to 190 of about 2,098,128 (254)

[Great Pyramid of Giza]

open access: yes
Photograph of the Great Pyramid of Giza. The stone step structure of the pyramid is visible in the foreground.
Gough, Ray
core  

Predicting the Reactivity of Acyclic Silylenes and Germylenes in Hydrogen Activation Using Machine Learning

open access: yesAdvanced Science, EarlyView.
Statistical models for the prediction of the energy profile of H2 activation by silylenes and germylenes were developed. A simple model based on increments of the elements in α‐position enabled robust energy prediction, extrapolation to new structures, and transferability to new tetrylenes and substrates.
Michelle Kleinhaus   +4 more
wiley   +1 more source

Distant view of the Great Pyramid and the Second Pyramid [transparency] /

open access: yes
Title from label on top edge of lantern slide.; Part of the Australian Inland Mission collection.; Condition: Cracked.; "Trade mark ; Photos of the Gt. Pyramid ; 23" -- Printed at top of slide.; Also available in an electronic version via the Internet at:
Smyth, C. Piazzi (Charles Piazzi), 1819-1900.
core  

Neonatal Sevoflurane Exposure Induces Long‐Term Cognitive Impairment via Epigenetically Mediated MMP9 Activation and Perineuronal Net Disruption in the Hippocampal CA2

open access: yesAdvanced Science, EarlyView.
Hippocampal CA2 perineuronal nets ensheathing excitatory pyramidal neurons are selectively vulnerable to repeated neonatal sevoflurane exposure. Epigenetic upregulation of MMP9 via reduced H3K27me3 disrupts PNN integrity, impairs BDNF–TrkB signaling, and causes synaptic protein loss and dendritic spine deficits, leading to persistent social and spatial
Lirong Liang   +11 more
wiley   +1 more source

The Great Pyramid and the Second Pyramid from the north [transparency] /

open access: yes
Title devised by cataloguer based on accompanying documentation.; Part of the Australian Inland Mission collection.; Condition: Good.; "Trade mark ; Photos of the Gt.
Smyth, C. Piazzi (Charles Piazzi), 1819-1900.
core  

Phosphine Coordination to Ce, Nd, Np, and Pu in ArBiAMPtBu‐Supported Complexes and Their 2H and 13C Isotopologues

open access: yesAdvanced Science, EarlyView.
A dianionic ligand designed to encourage metal‐phosphine coordination—bis((3,5‐dimethylphenyl)amidomethyl)tertbutylphosphine (ArBiAMPtBu)—was employed in the synthesis of paramagnetic complexes of Ce, Nd, Np, and Pu, producing MI(ArBiAMPtBu)(thf)3.
Novan A. G. Gray   +9 more
wiley   +1 more source

What are We Measuring in Anatomy Education? An Exploratory Mapping from Anatomical Learning to Clinical Competence. [PDF]

open access: yesAdv Med Educ Pract
Alzate-Mejia OA   +3 more
europepmc   +1 more source

Effects of Doping, Disorder, and Compensation on Electron Conduction in Si‐Doped k‐Ga2O3 Close to the Metal‐to‐Insulator Transition

open access: yesAdvanced Electronic Materials, EarlyView.
Self‐compensation effects attributed to doping‐dependent shift‐defects at APBs Validation of Hall data for VRH transport near the MIT Persistence of VRH transport for any SiH4 flow in Si‐doped κ‐Ga2O3 due to high compensation coupling transport and EPR data as strategy to study electronic properties and doping T‐dependence of transport data agrees with
Antonella Parisini   +9 more
wiley   +1 more source

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