Results 131 to 140 of about 2,484,895 (385)

Revealing the True Nature of Double‐Peak Emission in 2D Perovskite Single Crystals Using Polariton Waveguides

open access: yesAdvanced Optical Materials, EarlyView.
Engineering structural distortion in Dion–Jacobson perovskites allows control over optical properties and electronic band structure, unveiling new structure‐property insights. Crystal microwires act as waveguides with strong light‐matter coupling, explaining the double peak emission.
Annalisa Coriolano   +14 more
wiley   +1 more source

Enhancing Amplified Spontaneous Emission in Perovskite Thin Films by Thickness Regulation: Insights into Carrier Distribution and Optical Confinement

open access: yesAdvanced Optical Materials, EarlyView.
This study reveals the critical influence of film thickness and excitation wavelength on the ASE threshold in metal halide perovskites. By optimizing these factors, the ASE threshold is significantly reduced, providing key insights into optical confinement and carrier distribution for advancing electrically pumped perovskite lasers.
Yulin Mao   +7 more
wiley   +1 more source

A rare nasopharyngeal foreign body (detached beverage can stay-tab): A case report

open access: yesRadiology Case Reports, 2022
Foreign body ingestion and inhalation is a very common problem in children while nasopharyngeal foreign body aspiration in children is rare but can present; therefore, timely diagnosis of the nasopharyngeal foreign body is crucial and vital for the ...
Hidayatullah Hamidi, MD   +1 more
doaj  

Work and well-being over time: lone mothers and their children [PDF]

open access: yes, 2008
This report provides findings from the third wave of a qualitative longitudinal study, which began in 2003, following a sample of lone mothers who elected to move into employment supported by tax credits following a period of unemployment in receipt of ...
Millar, Jane., Ridge, Tess
core  

Cation‐Engineered Post‐Treatment for Blue Perovskite Light‐Emitting Diodes

open access: yesAdvanced Optical Materials, EarlyView.
This work presents a cation‐engineered post‐treatment strategy for high‐performance mixed‐halide blue PeLEDs. By investigating the role of 4‐fluorophenylethylammonium (FPEA+) versus conventional phenylethylammonium (PEA+) organic cations in post‐treatment agents, it demonstrates that FPEA+ enables superior preservation of the 3D perovskite structure ...
Zheng Zhang   +7 more
wiley   +1 more source

Stories of Mothers and Child Welfare (SUMMARY REPORT) [PDF]

open access: yes, 2003
The voices we hear describing the lives of mothers who come into contact with child welfare agencies are usually those of service providers and researchers. How do mothers make sense of their own lives and what happened to their families when they became
Cameron, Gary, Hoy, S.
core   +1 more source

Stereotyped Subclones Revealed by High‐Density Single‐Cell Lineage Tracing Support Robust Development

open access: yesAdvanced Science, EarlyView.
Based on a well‐established in vitro directed differentiation model and an integrated analysis of high‐density cell lineage trees (CLTs) and single‐cell transcriptomes, it is demonstrated that many subclones are formed by sub‐CLTs resembling each other in terms of both cell type compositions and topological structures.
Xiaoyu Zhang   +14 more
wiley   +1 more source

Primary hydatid cyst of the neck – EPSC 101593

open access: yesJournal of Pediatric Surgery Case Reports, 2020
Hydatid cyst is a parasitic infection mostly caused by Echinococcus granulosis. The most frequent sites of the cyst are liver and lungs. Occurrence in the head and neck region is extremely rare.
Mohammad Tareq Rahimi   +3 more
doaj  

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