Results 241 to 250 of about 136,372 (305)

Optical Charge Trap Memory Based on Graphene/ZnO Heterostructures for Long‐Term Retention and Adaptive Learning

open access: yesAdvanced Electronic Materials, EarlyView.
A biocompatible graphene/ZnO optical charge trap memory (CTM) is reported with over 54 h retention, enabled by interfacial photodoping. Using transient absorption spectroscopy and electrical analysis, charge transfer quenching is elucidated and reveal that a large energy barrier at the interface is responsible for long‐term memory retention.
Seungmin Shin   +10 more
wiley   +1 more source

Exfoliated‐MoS2 Gradual Resistive Switching Devices as Artificial Synapses

open access: yesAdvanced Electronic Materials, EarlyView.
A vertical memristor based on untreated, exfoliated MoS2 is presented, revealing gradual resistive switching governed by Schottky barrier modulation at the MoS2/metal interface from the trapping/detrapping of charges. Furthermore, the device emulates synaptic‐like plasticity functions, including: potentiation, depression, and spike‐amplitude‐dependent ...
Deianira Fejzaj   +3 more
wiley   +1 more source

Emerging Memory and Device Technologies for Hardware‐Accelerated Model Training and Inference

open access: yesAdvanced Electronic Materials, EarlyView.
This review investigates the suitability of various emerging memory technologies as compute‐in‐memory hardware for artificial intelligence (AI) applications. Distinct requirements for training‐ and inference‐centric computing are discussed, spanning device physics, materials, and system integration.
Yoonho Cho   +6 more
wiley   +1 more source

Analog Weight Update Rule in Ferroelectric Hafnia, Using picoJoule Programming Pulses

open access: yesAdvanced Electronic Materials, EarlyView.
Resistive, ferroelectric synaptic weights based on BEOL‐compatible hafnia/zirconia nanolaminates are fabricated. Lateral downscaling the devices below 10 µm2 enables 20 ns programming with electrical pulses, dissipating ≤ 3 pJ. Experimental results show that final conductance state is set by pulse amplitude, and is largely independent of the initial ...
Alexandre Baigol   +7 more
wiley   +1 more source

A Dual‐Memory Ferroelectric Transistor Emulating Synaptic Metaplasticity for High‐Speed Reservoir Computing

open access: yesAdvanced Electronic Materials, EarlyView.
A CMOS‐compatible ferroelectric transistor harnesses the interplay between stable gate polarization memory and volatile non‐quasi‐static channel charge dynamics to emulate how biological synapses regulate their own plasticity. This brain‐inspired dual‐memory mechanism, realized in a single device, enables a physical reservoir computer that solves ...
Yifan Wang   +8 more
wiley   +1 more source

Why Didn't I Get a Payout? Understanding Farmer Choices, Index Insurance, and Basis Risk

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Index insurance, while heralded as a potential solution to alleviate poverty and food insecurity among agricultural households, has its own set of challenges, notably basis risk. Basis risk is the discrepancy between the insurance payout and losses incurred, posing a significant deterrent to the adoption of index insurance.
S. Lucille Blakeley   +4 more
wiley   +1 more source

Treatment of recurrent depression

Expert Review of Neurotherapeutics, 2006
Approximately eight out of ten people experiencing a major depressive episode will have one or more further episodes during their lifetime: a recurrent major depressive disorder. Prolongation or lifelong pharmacotherapy has emerged as the main therapeutic tool for preventing relapse in depression.
Giovanni A Fava, Nicoletta Sonino
exaly   +5 more sources

[Recurrent brief depression].

Minerva psichiatrica, 1995
The initial conception of manic depressive illness by Kraepelin included short and mild depressive and hypomanic states in the nosologic category of affective illness. The concept of recurrent brief depression was further confirmed in recent community and general practice studies.
AMORE, MARIO, RICCI M, GIORGETTI G.
openaire   +4 more sources

Recurrent Depressions and the Lithium Ion

American Journal of Psychiatry, 1968
Lithium was successfully used to treat five patients with recurrent depressions, three of whom had typical manic-depressive illnesses. Their clinical and also their characteristic subjective responses to lithium establish a very suggestive relationship between illnesses previously believed on observational grounds alone to be related. Some term such as
W L, Dyson, M, Mendelson
openaire   +2 more sources

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