Results 71 to 80 of about 965,634 (312)

Charge‐Polarized Ni─S4 Single‐Atom Sites Drive Selective Photoreforming of Poly(lactic acid) to Lactate and Hydrogen

open access: yesAdvanced Functional Materials, EarlyView.
Atomically dispersed Ni–S4 sites on CdS nanorods induce interfacial charge polarization, directing photogenerated electrons to H2 evolution and holes to selective ester‐bond cleavage of poly(lactic acid). Without sacrificial reagents, this charge‐coupled system produces lactate while suppressing overoxidation, achieving an H2 evolution rate of 41.74 ...
Yu Yao   +8 more
wiley   +1 more source

A New Strategy for Creating Quantum Light Emitters Via Post‐Growth Hydrogen‐Ion Irradiation of III‐V Nanowires

open access: yesAdvanced Functional Materials, EarlyView.
A post‐growth method is demonstrated to realize energy‐tunable quantum emitters in GaAs/GaAsN/GaAs core–multishell nanowires on a Si substrate. By combining the N‐induced bandgap reduction with H‐ion irradiation, the GaAsN potential landscape is engineered, enabling isolated, narrow emission lines that function as single‐photon sources with g(2)(0) ∼ 0.
Akant Sagar Sharma   +10 more
wiley   +1 more source

Beatty Recreation Center photograph

open access: yes, 1950
This photograph shows the Beatty Recreation Center building in Beatty Park in Columbus. This item is part of a collection of photographs from the Columbus Recreation and Parks Department.
Columbus (Ohio). Recreation and Parks Department
core  

Guanosine‐Quadruplex Hydrogels as Dynamic, Mechanically Tunable and Ion Conductive 3D Scaffolds for Cell Culture Applications

open access: yesAdvanced Functional Materials, EarlyView.
Versatile guanosine‐quadruplex (GQ) hydrogels are developed as dynamic biomatrices for cell culture. These scaffolds are fabricated under mild aqueous conditions, present improved stability, tunable mechanical properties within physiological ranges; fibrillar, porous microstructure, ion conductivity, and cytocompatibility.
Neha Thakur   +10 more
wiley   +1 more source

Yaşam Doyumunun Yordayıcısı Olarak Boş Zaman Tatmini

open access: yesSelçuk Üniversitesi Sosyal Bilimler Meslek Yüksekokulu Dergisi, 2019
Bu araştırmanın amacı bir sayfiye yeri olan Alanya’da üniversite okuyan öğrencilerin, boş zaman tatminlerinin yaşam doyumuna etkisinin belirlenmesi ve bunlar arasındaki ilişkinin incelenmesidir.
Tolga Gül
doaj   +1 more source

Oxygen Evolution Electrocatalysts with Trinuclear, Mixed‐Valence Iron Motifs on Electronically Aligned Carbon Dots

open access: yesAdvanced Functional Materials, EarlyView.
Trinuclear iron oxo‐bridged catalytic ensembles stabilized by aspartic‐acid‐derived carbon dots provide an effective platform for alkaline oxygen evolution. Mixed‐valence charge balancing, inner‐sphere charge transport, and work‐function alignment within the N/O‐rich carbon framework promote cooperative Fe‐site chemistry and efficient OER ...
Megha A. Deshmukh   +13 more
wiley   +1 more source

Recreation Suitability Assessment and Conservation-Compatible Spatial Screening in Sanjiangyuan National Park

open access: yesLand
Recreation suitability in national parks refers to the capacity of a place to support low-impact recreation while maintaining ecological integrity and complying with conservation objectives.
Yuan Kang   +3 more
doaj   +1 more source

Investigation of university students attitudes toward leisure time activities (ardahan university sample)

open access: yesTürk Spor ve Egzersiz Dergisi, 2019
The aim of this research is to identify the attitudes of university students towards leisure activities, their levels of participation in activities and the state of adequate opportunities.
Fatih Murathan   +2 more
doaj   +1 more source

Indian Mound Recreation Center photograph

open access: yes, 1975
This photograph shows the new Indian Mound Recreation Center in Columbus. This item is part of a collection of photographs from the Columbus Recreation and Parks Department.
Columbus (Ohio). Recreation and Parks Department
core  

Self‐Powered, Ultra‐Sensitive InGaAs/ITO Nanowire Radial Junction Infrared Photodiode for Low Flux Imaging at Room Temperature

open access: yesAdvanced Functional Materials, EarlyView.
This study reports a self‐powered InGaAs nanowire photodetector achieving single‐photon‐level sensitivity in the shortwave infrared at non‐cryogenic temperatures. The device demonstrates high‐speed imaging capabilities even under extremely low‐flux conditions.
Kosala Dhanawansha   +10 more
wiley   +1 more source

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