Results 131 to 140 of about 11,557,211 (324)

A Trans‐1,2‐Diphenyl‐Substituted EDTA Platform for High‐Relaxivity Mn(II) MRI Probes

Chemistry – A European Journal, EarlyView.
Symmetric diphenyl substitution of the EDTA backbone enhances the rigidity of the Mn(II) complex and enables strong multisite interactions, providing a versatile platform for further functionalisation and conjugation towards high‐performance Mn(II)‐based MRI contrast agents.
Federico Forgione, Alessandro Nucera, Marco Ricci, Attila Benyei, Mariangela Boccalon, Zsolt Baranyai, Giovanni B. Giovenzana, Mauro Botta   +7 more
wiley   +1 more source

Embryonic development of the Mediterranean starfish Hacelia attenuata

Developmental Dynamics, EarlyView.
Abstract Background Starfish play essential ecological roles as predators and ecosystem regulators; however, detailed developmental descriptions exist for only a handful of species, none of which are from the Mediterranean Sea. Results In this study, we provide the first full account of the development of the Mediterranean starfish Hacelia attenuata ...
Silvia Caballero‐Mancebo, Laurent Gilletta, Janet Chenevert, Stefania Castagnetti   +3 more
wiley   +1 more source

Zebrafish ventral gastrula fate map reveals neural crest progenitor domain

Developmental Dynamics, EarlyView.
Abstract Background Fate maps relate progenitor cell positions to later fates and locations of their progeny, revealing early embryonic organization. Previous zebrafish fate maps identified the origin of germ layers and derivative cell fates, but ventral gastrula progenitor domains were not fully resolved. In particular, the neural crest, a multipotent
Elaine E. Kushkowski, Victoria E. Prince
wiley   +1 more source

VHF-radar observations of layered structure of the equatorial spread-F: Implications to the spatial resonance effect [PDF]

, 1976
Recently the spatial resonance rnechanism of gravity waves and plasma drifts was assumed to be responsible for the modulation of the macro­scale structure of the equatorial spread-F (Beer, 1974; Rottger, 1975a).
Röttger, J., Woodman Pollitt, Ronald Francisco   +1 more
core  

Hydride Materials for Advanced Electrochemical Energy Storage: Progress and Perspectives

EcoEnergy, EarlyView.
Hydrides are emerging as functional materials for low‐carbon electrochemical energy storage. Complex hydrides provide polyanionic electrolyte frameworks for all‐solid‐state, Li–S, and multivalent batteries; hydride ion conductors enable H− transport for emerging hydride‐based cells; and metal hydrides offer established electrode chemistries for Ni–MH ...
Taehyun Kim, Taegyoung Lee, Huijeong Oh, Shin‐ichi Orimo, Sangryun Kim   +4 more
wiley   +1 more source

Global patterns of treeline predictability and the gap between the forest and the treeline

Ecography, EarlyView.
The alpine treeline is the highest elevation at which trees can grow, which is assumed to be controlled by temperature and globally predictable. However, many upper forest limits (UFLs) do not reach this elevation, due natural factors and human disturbance.
Erickson G. Urquiaga‐Flores, Michael Kessler, Maaike Y. Bader   +2 more
wiley   +1 more source

Axial Chirality Control Through Palladium‐Catalyzed Alkenylation Reactions for the Atroposelective Synthesis of 4‐Arylquinolin‐2‐ones

European Journal of Organic Chemistry, EarlyView.
Palladium(II)‐catalyzed intramolecular C─H alkenylation of cinnamides allows the atroposelective synthesis of axially chiral 4‐arylquinolones, with the chirality being installed by ring formation. DFT studies have shown that the reaction proceeds by prior activation of the alkene and the enantioselectivity is determined during the β‐hydride elimination
Brenda Fundora, Asier Carral‐Menoyo, Mikel Martinez‐Nunes, Sheila Brown, Yeray Ferrero, Yaneris Martinez‐Mendizábal, Nuria Sotomayor, Enrique Gómez‐Bengoa, Esther Lete   +8 more
wiley   +1 more source

Research progress in photo‐controlled radical involved luminescence materials

FlexMat, EarlyView.
This review systematically dissects radical generation mechanisms, triplet‐exciton photophysics, material design strategies, and cutting‐edge applications in smart encryption, environmental sensing, and 3D printing. Abstract In recent years, photo‐controlled radical room‐temperature phosphorescent (RTP) materials have shown significant application ...
Sichen Meng, Shengwen Bao, Xiang Li, Shuaishuai Lu, Danfeng Ye, Ying Liu, Deli Sun, Hongwei Wu, Liangliang Zhu   +8 more
wiley   +1 more source

Equatorial spread-F characteristics using HF Doppler shift measurements: results from upgraded Doppler sounder system in Tucuman, Argentina

Earth, Planets and Space
Horizontals drifts of equatorial Spread F (ESF) at post-sunset and post-midnight are investigated by analyzing six ESF events observed during the period of November 2022–March 2023.
Habtamu Marew, Jaroslav Chum, Maria Graciela Molina, Uma Ashrani, Carlos Martinis   +4 more
doaj   +1 more source

Pollen Morphology of Crucianella L. (Rubiaceae) Based on Light and Scanning Electron Microscope Data and Implications for Taxonomy

Microscopy Research and Technique, EarlyView.
This study provides the palynological analysis of 12 Crucianella L. taxa using LM and SEM. Variations in pollen size, aperture number, and exine ornamentation were identified as key traits, demonstrating their taxonomic value for distinguishing closely related species and subspecies within the genus. ABSTRACT Crucianella L.
Sevcan Celenk, Zelal Kücük, Gülşah Bağcıvan, Ruziye Daşkın   +3 more
wiley   +1 more source