Results 111 to 120 of about 5,343,913 (293)

Performance of an automated insulin‐glucagon delivery system versus automated insulin delivery system during challenging inpatient conditions. A single‐blind randomised controlled crossover trial

Diabetes, Obesity and Metabolism, Volume 28, Issue 5, Page 3955-3964, May 2026.
Abstract Aims To assess the efficacy and safety of an automated insulin‐glucagon delivery system (AIGD) compared with an automated insulin delivery system (AID). Materials and methods In a 33‐h, randomised, crossover, inpatient study, 13 participants with type 1 diabetes used the DiaCon system in AIGD and AID modes.
Ajenthen G. Ranjan PhD, Christian Laugesen PhD, Dimitri Boiroux PhD, Signe Schmidt PhD, Asbjørn T. Reenberg PhD, Jens Juul Holst DMSc, John B. Jørgensen PhD, Kirsten Nørgaard DMSc   +7 more
wiley   +1 more source

Cardiac arrhythmia prevalence and risk factors in 24‐h electrocardiograms of sedentary horses

Equine Veterinary Journal, Volume 58, Issue 3, Page 718-727, May 2026.
Abstract Background Cardiac arrhythmias are common in horses, but their clinical relevance remains controversial. Objectives To describe prevalence and identify risk factors for arrhythmias that may warrant additional screening in a sedentary mixed‐breed population of horses. Study Design Prospective cross‐sectional.
Lauren T. Maas, Elizabeth Williams Louie, Carrie J. Finno, Callum G. Donnelly, Joshua A. Stern, Ashley E. Hill, Jessica M. Morgan   +6 more
wiley   +1 more source

A preliminary comparison of Na lidar and meteor radar zonal winds during geomagnetic quiet and disturbed conditions

, 2018
We investigate the possibility that sufficiently large electric fields and/or ionization during geomagnetic disturbed conditions may invalidate the assumptions applied in the retrieval of neutral horizontal winds from meteor and/or lidar measurements. As
Kumar, G. Kishore, Tyssøy, H. Nesse, Williams, Bifford P.   +2 more
core   +1 more source

Observations of High‐Resolution Two‐Dimensional Ionospheric Flow Dynamics Associated With Poleward Boundary Intensifications

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Poleward boundary intensifications (PBIs) are one of the most common auroral disturbances and have been shown to play a key role in substorm dynamics. PBIs are commonly interpreted as the ionospheric signature of magnetotail reconnection, providing insight into X‐line evolution.
Katherine Davidson, Yukitoshi Nishimura, Larry Lyons, Eric Donovan, Vassilis Angelopoulos, Nozomu Nishitani   +5 more
wiley   +1 more source

A comparison of optical and coherent HF radar backscatter observations of a post-midnight aurora [PDF]

Annales Geophysicae, 1997
A poleward-progressing 630 nm optical feature is observed between approximately 0100 UT and 0230 UT (0400 MLT to 0530 MLT) by a meridian-scanning photometer (MSP) located at Ny Ålesund, Svalbard.
S. E. Milan, M. Lester, J. Moen
doaj   +1 more source

Influence of the Eccentric Geomagnetic Dipole on Longitude Variations of Compressional Upstream Wave Amplitudes in the Topside Ionosphere: Results From the MSS‐1A Satellite

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Based on 2‐year magnetic data from the Macau science satellite, we investigate the compressional Pc3‐4 pulsations (between 16 and 100 mHz) driven by upstream waves (UWs). Our results confirm larger UWs amplitudes in the South Atlantic Anomaly (SAA) longitudes, agreeing with previous missions.
Chao Xiong, Haibin Liu, Hermann Lühr, Chunyu Xu   +3 more
wiley   +1 more source

Impact of Non‐Classical Gravity‐Wave Dynamics on Middle‐Atmosphere Mean Flow and Solar Tides

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 8, 28 April 2026.
Abstract Conventional gravity‐wave (GW) parameterizations neglect three aspects of GW dynamics. Instead of momentum and entropy fluxes they use Eliassen‐Palm fluxes, thereby neglecting the possibility that resolved flow are not in geostrophic and hydrostatic balance.
T. Kühner, G. S. Völker, U. Achatz
wiley   +1 more source

Frequency‐Dependent Latitudinal Distributions of Plasmaspheric Plume Hiss Directionality and Amplitude

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Plasmaspheric plume hiss plays a crucial role in shaping Earth's electron radiation belts and influencing magnetosphere–ionosphere energy coupling. However, its generation mechanism remains contested between cyclic‐linear and localized‐nonlinear models. By analyzing over 64,000 high‐resolution plume hiss wave segments from the Van Allen Probes
Zhiyong Wu, Zhenpeng Su, Huinan Zheng, Yuming Wang   +3 more
wiley   +1 more source

NOx production due to energetic particle precipitation in the MLT region: Results from ion chemistry model studies

, 2014
Production of neutral species such as NOx(N, NO, and NO2) during particle‐induced ionization events plays an important role in the chemistry of the mesosphere and lower thermosphere (MLT) region, especially in high latitudes.
H. Nieder, H. Winkler, D. Marsh, M. Sinnhuber   +3 more
semanticscholar   +1 more source

Magnetopause Boundary Layers in Low Mach CME‐Driven Storm Environment

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Magnetopause boundary layers (BLs) play an important role mediating plasma and energy exchange between the solar wind/magnetosheath and Earth's magnetosphere. Energy exchange across the magnetopause is enhanced during storms, yet little work has been done investigating BLs during storms.
Rachel C. Rice, Li‐Jen Chen, Tai Phan, Brandon L. Burkholder, Stephen A. Fuselier, Roman Gomez, Cristian P. Ferradas, Jason M. H. Beedle, Megha Pandya   +8 more
wiley   +1 more source