Results 221 to 230 of about 1,856,713 (355)

Novel Histopathologic Features of Diffuse Blue‐Gray Hyperpigmentation Associated With Kratom Use: A Case Report and Literature Review

Journal of Cutaneous Pathology, EarlyView.
ABSTRACT Background Drug‐induced hyperpigmentation accounts for 10%–20% of acquired pigmentary disorders and can be misdiagnosed for other causes such as melasma, post inflammatory changes, or heavy metal deposition. Kratom (Mitragyna speciosa), a Southeast Asian plant with an opioid‐like profile, has been increasingly used in the United States for ...
Rita Kamoua, Kristen Paradine, Craig A. Rohan, Mary McDaniel, Diane Perkins   +4 more
wiley   +1 more source

Efficacy of Picosecond Laser in Clinical, Histopathology, and Immunohistochemistry Examination in Indonesian Wrinkled Skin. [PDF]

J Lasers Med Sci
Wardhani PH, Sigit Prakoeswa CR, Listiawan MY.   +2 more
europepmc   +1 more source

Global consensus on the management of melanin hyperpigmentation disorders

Journal of the European Academy of Dermatology and Venereology, EarlyView.
A global Delphi consensus of 10 dermatology experts established evidence‐based recommendations for melanin hyperpigmentation disorders, providing unified classification, photoprotection guidance and treatment algorithms. This framework harmonizes terminology and supports individualized management across diverse skin types and health systems.
Thierry Passeron, Seemal R. Desai, Marwa Abdallah, Firas Al‐Niaimi, Ncoza Dlova, Pearl E. Grimes, Jorge Ocampo‐Candiani, Rashmi Sarkar, Leihong Flora Xiang, Helio Amante Miot   +9 more
wiley   +1 more source

Non‐Statistical Assembly of Donor–Acceptor Cages for Light‐Induced Charge Separation

Angewandte Chemie, Volume 138, Issue 7, 9 February 2026.
Donor–acceptor functionalized cages [Pd2D2A2]4+ with defined stoichiometry and stereoconfiguration were assembled in a single step by employing the shape complementary assembly (SCA) strategy. While the redox functionalities remain largely independent in the ground state, photoexcitation results in ultrafast ligand‐to‐ligand charge transfer, as ...
Jacopo Tessarolo, Laura Neukirch, Kai Wu, Jan‐Hendrik Borter, Haeri Lee, Dirk Schwarzer, Guido H. Clever   +6 more
wiley   +2 more sources

Picosecond Laser Direct Writing of Micro-Nano Structures on Flexible Thin Film for X-Band Transmittance Function. [PDF]

Materials (Basel)
Feng J, Zhou J, Xu C, Yang B, Tian Z, Liu H, Zhang Y, Sun Z, Peng X, Tian Y.   +9 more
europepmc   +1 more source

Optical Emission Spectroscopy and Gas Kinetics of Picosecond Laser-Induced Chlorine Dissociation for Atomic Layer Etching of Silicon. [PDF]

J Phys Chem C Nanomater Interfaces
Li R, Eliceiri MH, Li J, Korakis V, Yang R, Rho Y, Blankenship BW, Grigoropoulos CP.   +7 more
europepmc   +1 more source

Observation of Betatron X-Ray Radiation in a Self-Modulated Laser Wakefield Accelerator Driven with Picosecond Laser Pulses.

Physical Review Letters, 2017
F. Albert, N. Lemos, N. Lemos, J. Shaw, B. Pollock, C. Goyon, W. Schumaker, A. Saunders, K. Marsh, A. Pak, J. Ralph, José Luís Martins, L. D. Amorim, L. D. Amorim, R. Falcone, S. Glenzer, J. Moody, C. Joshi   +17 more
semanticscholar   +1 more source

Wavelength Dependence of fs Laser Ablation Ionisation Mass Spectrometry: a Dedicated Study on NIST SRM 664

Rapid Communications in Mass Spectrometry, Volume 40, Issue 5, 15 March 2026.
ABSTRACT Rationale Laser ablation mass spectrometry provides fast and direct chemical information of solids with high spatial resolution without the need for complex sample preparation. It has been shown that reducing the laser pulse length below picoseconds improves the quantification of chemical composition measurements of solids. This study compares
Valentine Grimaudo, Andreas Riedo, Marek Tulej, Peter Wurz   +3 more
wiley   +1 more source

Singlet Fission in Push–Pull Para‐Azaquinodimethane Films under the Gaze of Time Resolved Optical and Magnetic Spectroscopy

Angewandte Chemie, Volume 138, Issue 6, 2 February 2026.
New push–pull para‐azaquinodimethane derivatives were synthetized through a sustainable protocol. Transient absorption results showed ultrafast intermolecular singlet fission (SF) in film and demonstrated for AsOMe higher triplet energy than for literature SF materials, with intriguing perspectives for photovoltaics toward silicon matched SF.
Martina Alebardi, Angelo Carella, Alessandro Grasso, Enrico Sorbelli, Francesco Lazzarin, Cristina Munzone, Cosimo Gianluca Fortuna, Fausto Elisei, Anna Spalletti, Carmela Bonaccorso, Marilena Di Valentin, Benedetta Carlotti   +11 more
wiley   +2 more sources

Dual-Method Characterization and Optimization of Drilling Parameters for Picosecond Laser Drilling Quality in CFRP. [PDF]

Polymers (Basel)
Zheng Z, Ma Y, Wang Z, Liu S, Wu C.
europepmc   +1 more source