Results 191 to 200 of about 41,950 (279)

Colóquio comemorativo do centenário do nascimento do Professor Salvador Dias Arnaut

open access: yesRevista de História da Sociedade e da Cultura, 2013
Margarida Sobral Neto
doaj   +1 more source

Gamma‐Ray Glows Commonly Followed by Lightning: A Statistical Study of the Spatio‐Temporal Relationship

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Gamma‐ray glows are prolonged enhancements of gamma rays from thunderclouds, which are often linked to large‐scale electric fields rather than individual lightning. The link between glows and lightning remains poorly understood. Here, we analyzed 300 glows observed during the ALOFT aircraft campaign and optical lightning detected by GLM.
Chu‐Nan Zhang   +10 more
wiley   +1 more source

Iron‐Catalyzed Hydrodecarboxylation of Fatty Acids From Vegetable Oils for Drop‐In Biofuel Production

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 39, 22 October 2026.
An iron‐catalyzed hydrodecarboxylation for renewable hydrocarbon production is reported, featuring an alternative hydrogen source and a commercially available iron salt as the catalyst. The protocol enabled efficient one‐pot Cn–1 hydrocarbon synthesis from vegetable oils under mild and open‐air conditions.
José H. A. da Silva   +7 more
wiley   +1 more source

Detection and Analysis of an Upward Jet‐Like Electrical Discharge Intercepting a High‐Altitude Research Aircraft

open access: yesGeophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract During a 2023 field campaign, a NASA ER‐2 research aircraft intercepted an upward jet‐like electrical discharge at 20 km altitude over an intense tropical thunderstorm. This event was analyzed using airborne multispectral optical sensors, electric field mills, X‐band radar, passive microwave, and ground‐based radio networks.
T. J. Lang   +19 more
wiley   +1 more source

Novel UHMWPE sleeve for stabilizing loose suture anchors in rotator cuff repair. [PDF]

open access: yesArch Orthop Trauma Surg
Lin CK   +6 more
europepmc   +1 more source

Biotechnological valorization of rice waste from Trichoderma production through the development of a streptomyces-based biological soil conditioner. [PDF]

open access: yesBraz J Microbiol
Melo N   +8 more
europepmc   +1 more source

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