Results 61 to 70 of about 2,180,154 (198)
Smart Molecules, EarlyView.The present study establishes a paradigm shift in synthetic mRNA delivery through the convergence of three orthogonal chemistries—perfluoro‐acylation, bio‐orthogonal click cross‐linking, and disulfide reduction—within a single, modular polymer architecture. Abstract A fundamental constraint of conventional messenger RNA (mRNA) delivery systems is their
Yue Wang +8 more
wiley +1 more source
Simultaneous Observations of Aurora with a Doppler-Radar and Sounding Rockets [PDF]
, 1981 P(論文)A 50MHz auroral doppler-radar was operated at Syowa Station, Antarctica, in 1978 in cooperation with sounding rocket experiments during the International Magnetospheric Study.
Igarashi, Kiyoshi +5 more
core +1 more source
Radio sounding of geospace plasmas = Radiosondeo de plasmas geoespaciales
, 2000 New techniques for the radio sounding of geospace plasmas are described. Advanced digital processing, including spread-spectrum and Fourier techniques, has been successfully deployed during the last decade.
Reinisch, B. W.
core
HF Doppler Observations of Ionospheric Disturbances over Taiwan
, 2015 Results of observations of traveling ionospheric disturbances (TIDs) by the multipath continuous HF Doppler sounding system operating in Taiwan are presented.
Fišer, Jiří
core
Dual Illumination Planar Doppler Velocimetry using a Single Camera [PDF]
, 2003 A Planar Doppler Velocimetry (PDV) illumination system has been designed which is able to generate two beams, separated in frequency by about 600 MHz. This allows a common-path imaging head to be constructed, using a single imaging camera instead of ...
Nobes, David S. +7 more
core +1 more source
Technology Assisted Intraoperative Anatomic Visualization: Surgeon Perspectives and Unmet Needs
World Journal of Surgery, EarlyView.Iatrogenic injury to critical anatomic structures remains a leading source of surgical morbidity, most commonly due to visual misperception rather than technical error. Despite a rapidly expanding ecosystem of intraoperative visualization adjuncts, the surgeon's perspective on current limitations and unmet needs has not been evaluated. The objective of
Yann Sakref +9 more
wiley +1 more source
A model for gravity-wave spectra observed by Doppler sounding systems [PDF]
, 1986 A model for Mesosphere - Stratosphere - Troposphere (MST) radar spectra is developed following the formalism presented by Pinkel (1981). Expressions for the one-dimensional spectra of radial velocity versus frequency and versus radial wave number are ...
Vanzandt, T. E.
core
Acousto-optic frequency switching for single-camera planar Doppler velocimetry [PDF]
, 2001 A single-camera Planar Doppler velocimetry system has been demonstrated, in which illumination beams at two closely-spaced optical frequencies are derived from a single Argon-ion laser.
Nobes, David S. +5 more
core +1 more source
Reproductive Challenges of the Ageing Female: A Comprehensive Narrative Review
BJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.ABSTRACT Changes in societal norms over the last few decades have resulted in novel family planning trends, notably delayed childbearing and increased maternal age at the birth of the first child. Despite advances in reproductive medicine, ageing poses significant challenges.
Sofia Bitzika +6 more
wiley +1 more source
Anaesthesia, EarlyView.Summary Introduction Cerebral computed tomography angiography (CTA) is increasingly incorporated into national guidelines to confirm cerebral circulatory arrest during the determination of death using neurological criteria. However, implementation remains limited due to studies showing variable sensitivity.
Romuald Bohatyrewicz +14 more
wiley +1 more source