Results 71 to 80 of about 91,148 (312)

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

open access: yesAdvanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long   +26 more
wiley   +1 more source

Implementasi Akuntansi Lingkungan dan Size Terhadap Profitabilitas Usaha

open access: yesJurnal Akuntansi, 2022
The purpose of this study is to examine environmental accounting and company size, the effect on stock returns, and the role of profitability in moderating environmental accounting and company size on stock returns on the IDX Kompas100 Index.
Nunung Nurhayati, Verliani Dasmaran
doaj  

AI–Guided 4D Printing of Carnivorous Plants–Inspired Microneedles for Accelerated Wound Healing

open access: yesAdvanced Materials, EarlyView.
This work presents an artificial intelligence (AI)‐guided 4D‐printed microneedle platform inspired by carnivorous plants for wound healing. A thermo‐responsive shape memory polymer enables body temperature–triggered self‐coiling for autonomous wound closure.
Hyun Lee   +21 more
wiley   +1 more source

Sensitive and Spatially‐Resolved Electrochemiluminescence via Micropatterning

open access: yesAdvanced Materials Interfaces, EarlyView.
The use of a simple silica nanoparticle surface coating and patterning process can transform ordinary gold electrodes into multiplexed ECL sensing electrodes. Through spatially confined droplet formation and local ECL emission, it is possible to perform multiple analyses simultaneously from individual locations as well as intensify the ECL signal by as
Yuliang Shao   +12 more
wiley   +1 more source

Risk and Policy Uncertainty on Stock–Bond Return Correlations: Evidence from the US Markets

open access: yesRisks, 2020
This paper investigates dynamic correlations of stock–bond returns for different stock indices and bond maturities. Evidence in the US shows that stock–bond relations are time-varying and display a negative trend.
Thomas C. Chiang
doaj   +1 more source

Stock returns and volatility: Evidence from the Athens Stock market index

open access: yes, 2001
This paper investigates the volatility of the Athens Stock excess stock returns over the period 1990–1999 through the comparison of various conditional hetero-skedasticity models.
Apergis, Nicholas, Eleftheriou, Sofia
core  

Stock Liquidity and Stock Return

open access: yesEkspektra : Jurnal Bisnis dan Manajemen, 2019
This study aims to examine and analyze the effect of stock liquidity on stock returns on manufacturing companies listed on the Indonesia Stock Exchange. This study uses two control variables namely size and age and the study period from 2013 to 2017.
openaire   +3 more sources

Minimally Invasive Delivery of Optical Nanosensors Using Injectable Hydrogels

open access: yesAdvanced Materials Interfaces, EarlyView.
Injectable peptide hydrogels offer a minimally invasive delivery platform for single‐walled carbon nanotube (SWCNT)‐based near‐infrared fluorescent sensors, enabling real‐time measurement of drug concentrations. Encapsulated SWCNTs show a dose‐dependent fluorescence response across physiologically relevant concentrations and retain their fluorescence ...
Shirel Kleiner, Gili Bisker
wiley   +1 more source

Studying the effect of risk management on stock returns of companies listed in Tehran Stock Exchange

open access: yes, 2014
This study examines the relationship between risk management and stock returns of companies listed in Tehran Stock Exchange. To do this, 73 companies during the period of 2005 to 2010 were selected.
Asl Behbahani, Hossein Hasan   +1 more
core  

Ultrafast (1‐5 sec) Lamination of Perovskite Solar Cells With Self‐Encapsulation Using Rapid Joule Heating

open access: yesAdvanced Materials Technologies, EarlyView.
Halide perovskite solar cells are fabricated with self‐encapsulation by lamination between two glass substrates using rapid Joule heating, yielding a 99% reduction in lamination time compared to previous studies. An 18% efficient cell is laminated in 5 s, demonstrating the potential for scalable manufacturing. ABSTRACT Perovskite solar cells (PSCs) are
Oluka Okia   +9 more
wiley   +1 more source

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