Results 191 to 200 of about 133,403 (291)

Multimodal Magnetic Resonance Imaging and Machine Learning Uncovers Distinct Progression Patterns in Friedreich Ataxia

Movement Disorders, EarlyView.
Abstract Background Friedreich ataxia (FRDA) is a rare neurodegenerative disorder with heterogenous clinical progression, complicating prognosis and trial design. Neuroimaging offers objective biomarkers of disease progression, yet variability in progression patterns remains poorly understood.
Susmita Saha, Nellie Georgiou‐Karistianis, Vivienne Teo, Louise A. Corben, David J. Szmulewicz, Lachlan T. Strike, Marcondes C. França Jr., Thiago J.R. Rezende, Ian H. Harding   +8 more
wiley   +1 more source

Coherent control of quantum-dot spins with cyclic optical transitions. [PDF]

Nat Commun
Koong ZX, Haeusler U, Kaspari JM, Schimpf C, Dejen B, Hassanen AM, Graham D, Karli Y, Garcia AJ, Peter M, Clarke E, Hugues M, Gawełczyk M, Rastelli A, Reiter DE, Atatüre M, Gangloff DA.   +16 more
europepmc   +1 more source

PVmatAgent: A Large Language Model (LLM) Agent for Perovskite Photovoltaic Material Design and Analysis

Materials Genome Engineering Advances, EarlyView.
PVmatAgent, an LLM‐based autonomous agent integrating 13 domain‐specific tools, executes the complete photovoltaic materials discovery pipeline (from literature retrieval and crystal structure generation to efficiency prediction and commercial assessment), while preventing hallucination via an enforced output parser.
Hangyuan Deng, Yuyan Wu, Youle Wang, Lei Zhang   +3 more
wiley   +1 more source

Quantitative analysis of carrier concentration and electric field in non-uniform quantum well infrared photodetectors. [PDF]

Nanoscale Adv
Chen Z, Xin R, Yu L, Deng Z, Wang S, Cheng Y, Xia H, Yao S, Li T.   +8 more
europepmc   +1 more source

Saussurea × media (Asteraceae), a new natural hybrid between S. parviflora and S. controversa

Nordic Journal of Botany, EarlyView.
Saussurea × media Yusupovsky and E.Pjak (Asteraceae), a new nothospecies from the Altai‐Sayan Mountains, is described and illustrated. In this study, we sequenced the internal transcribed spacer of nuclear ribosomal DNA and the chloroplast intergenic spacers rsp16‐trnQ and ycf4‐cemA to verify the hypothesis of hybridization between Saussurea parviflora
Daniil V. Yusupovsky, Elizaveta A. Pyak
wiley   +1 more source

Casimir-mediated amplification of flexural modes in suspended graphene. [PDF]

Nanoscale Adv
Ribeiro S, Terças H.
europepmc   +1 more source

Photovoltaic Effect in a III‐IV‐V Compound Semiconductor

Progress in Photovoltaics: Research and Applications, EarlyView.
A large reduction of the GaAs band gap is obtained with incorporation of 6.5% Ge during epitaxy without introducing extended defects or composition inhomogeneity. Heterojunction solar cell devices were fabricated with 0.76‐V open circuit voltage and an internal quantum efficiency above 40% at energies below the bandgap of the GaAs emitter.
José M. Ripalda, Pablo Caño, Micaela Rodriguez‐Peña, Miguel Angel Sevillano‐Bendezú, Aurelia Trevisan, Raghavendra Juluri, Aitana Cano, Iván García, Alicia Gonzalo, Enrique Navarro, Jeronimo Buencuerpo, Paul Koenraad, Ana María Sanchez, Yolanda Gonzalez   +13 more
wiley   +1 more source

Hybrid integration of quantum dot single-photon sources with lithium tantalate photonics for on-chip routing. [PDF]

Nat Commun
Xiong K, Shan D, Li X, Ruan Z, Chen B, Wang Z, Wang J, Yu Y, Wu W, Chen P, Liu J, Liu L, Chen Y, Jiang T.   +13 more
europepmc   +1 more source

Impacts of Fermi Level Pinning at Hole‐Selective Contacts in CdSeTe/CdTe Solar Cells

Progress in Photovoltaics: Research and Applications, EarlyView.
Experimental measurements and SCAPS simulations consistently demonstrate dark–light J–V non‐superposition in CdSeTe/CdTe solar cells. The results indicate that donor‐like interface states at the ZnTe/CdTe contact pin the Fermi level, thereby producing a parasitic built‐in voltage that accounts for the observed non‐superposition (take‐off) behavior ...
Ariful Islam, Nathan D. Rock, Kh. Aaditta Arnab, Nicholas Miller, James Becker, Michael A. Scarpulla   +5 more
wiley   +1 more source

Correction: Reduced hot-electron energy-loss rate induced by finite-square confinement potential in GaN/AlN, GaAs/AlAs, and GaSb/InAs nanostructured materials. [PDF]

Nanoscale Adv
Dan HK, Tuan Vinh P, Long LP, Thuy HTP, Hien ND.   +4 more
europepmc   +1 more source