Results 121 to 130 of about 43,942 (341)

Perovskite Light‐Emitting Diodes with Quantum Wires and Nanorods

open access: yesAdvanced Materials, EarlyView.
This review focuses on low‐dimensional perovskite materials and discusses their applications in light‐emitting diodes (LEDs). Special attention is given to the introduction of perovskite quantum wires and nanorods, two unique types of one‐dimensional (1D) materials, and their interesting optoelectronic properties.
Qianpeng Zhang   +11 more
wiley   +1 more source

Understanding conserved amino acids in proteins [PDF]

open access: yesarXiv, 2000
It has been conjectured that evolution exerted pressure to preserve amino acids bearing thermodynamic, kinetic, and functional roles. In this letter we show that the physical requirement to maintain protein stability gives rise to a sequence conservatism pattern that is in remarkable agreement with that found in natural proteins.
arxiv  

Synthetic Control of Water‐Stable Hybrid Perovskitoid Semiconductors

open access: yesAdvanced Materials, EarlyView.
Hybrid metal‐halide perovskites are promising semiconductors for optoelectronics, yet their water stability is problematic. A new synthesis method is developed using lead iodide and cysteamine under various pH conditions, forming stable perovskitoid structures.
Jiyoon Kim   +8 more
wiley   +1 more source

Intrinsic Optical Signals and Electrographic Seizures in the Rat Limbic System

open access: yesNeurobiology of Disease, 2001
We measured the intrinsic optical signals (IOSs) generated by rat hippocampus-entorhinal cortex (EC) slices in response to single shock electrical stimuli delivered in the EC deep layers during application of the convulsant drug 4-aminopyridine (50 μM ...
Giovanna D'Arcangelo   +2 more
doaj  

Amino acid substitution matrices for protein conformation identification [PDF]

open access: yesarXiv, 2004
Methods for alignment of protein sequences typically measure similarity by using substitution matrix with scores for all possible exchanges of one amino acid with another. Although widely used, the matrices derived from homologous sequence segments, such as Dayhoff's PAM matrices and Henikoff's BLOSUM matrices, are not specific for protein conformation
arxiv  

Agonists, antagonists and modulators of excitatory amino acid receptors in the guinea‐pig myenteric plexus [PDF]

open access: green, 1988
Simona Luzzi   +4 more
openalex   +1 more source

The Deepest Blue: Major Advances and Challenges in Deep Blue Emitting Quasi‐2D and Nanocrystalline Perovskite LEDs

open access: yesAdvanced Materials, EarlyView.
In this review, the recent development of deep‐blue (≤465 nm) perovskite light‐emitting diodes (PeLEDs) are summarized, using different perovskite nanomaterials, including nanocrystals (NCs), quantum dots (QDs), nanoplatelets (NPLs), quasi‐2D thin film, 3D bulk thin film, as well as lead‐free perovskite nanomaterials.
Pui Kei Ko   +6 more
wiley   +1 more source

THE CEREBRAL AND SYSTEMIC EFFECTS OF THE EXCITATORY AMINO ACID RECEPTOR ANTAGONIST MK-801 IN DOGS [PDF]

open access: bronze, 1988
William J. Perkins   +3 more
openalex   +1 more source

Pushing Radiative Cooling Technology to Real Applications

open access: yesAdvanced Materials, EarlyView.
Radiative cooling controls surface optical properties for solar and thermal radiation, offering solutions for global warming and energy savings. Despite significant advances, key challenges remain: optimizing optical efficiency, maintaining aesthetics, preventing overcooling, enhancing durability, and enabling scalable production.
Chongjia Lin   +8 more
wiley   +1 more source

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