Results 41 to 50 of about 45,265 (301)

The role of intratidal oscillations in sediment resuspension in a diurnal, partially mixed estuary

, 2010
Using detailed observations of the mean and turbulent properties of flow, salinity and turbidity that spanned 2001/02, we examined the physical mechanisms underpinning sediment resuspension in the low-energy Swan River estuary, Western Australia. In this
O’Callaghan, J.M., J. M. O'Callaghan, Pattiaratchi, C.B., D. P. Hamilton, C. B. Pattiaratchi, Hamilton, David P.   +5 more
core   +1 more source

Diurnal variability---time to change asthma guidelines?

BMJ, 1999
Peak expiratory flow varies throughout the day in normal subjects, and this diurnal variation is increased in people with asthma.1 Current asthma guidelines recommend that diurnal variability of the peak expiratory flow rate should be calculated when diagnosing asthma and assessing its severity,2–7 including during exacerbations.34 Diurnal variability ...
H, Reddel, C, Jenkins, A, Woolcock
openaire   +3 more sources

Day-to-day Variability of The Migrating Diurnal Tide

, 2021
The migrating diurnal tide is a westward-propagating wave with a zonal wave number one and a period of one solar day. It is one of the dominant dynamical features in the mesosphere and lower thermosphere low latitude region, and represents the largest ...
Wang, Jack Chieh
core   +1 more source

A Novel Atmospheric Correction Algorithm to Exploit the Diurnal Variability in Hypertemporal Geostationary Observations

Remote Sensing, 2022
This study developed a new atmospheric correction algorithm, GeoNEX-AC, that is independent from the traditional use of spectral band ratios but dedicated to exploiting information from the diurnal variability in the hypertemporal geostationary ...
Weile Wang, Yujie Wang, Alexei Lyapustin, Hirofumi Hashimoto, Taejin Park, Andrew Michaelis, Ramakrishna Nemani   +6 more
doaj   +1 more source

Observational Evidence of Distinct Excitation Pathways for Migrating and Non-Migrating Tides in the Mesosphere-Lower Thermosphere During the 2021 Sudden Stratospheric Warming

Atmosphere
We investigate the excitation and variability of migrating and non-migrating diurnal and semi-diurnal tides in the mesosphere and lower thermosphere (MLT) during the 2021 Northern Hemisphere sudden stratospheric warming (SSW).
Reuben Acheampong Asamoah, Gizaw Mengistu Tsidu, Gemechu Fanta Garuma, Leonard Kofitse Amekudzi   +3 more
doaj   +1 more source

Determinants of short-period heart rate variability in the general population [PDF]

, 2001
Decreased heart rate variability (HRV) is associated with a worse prognosis in a variety of diseases and disorders. We evaluated the determinants of short-period HRV in a random sample of 149 middle-aged men and 137 women from the general population ...
Kuch, Bernhard, Sinnreich, R., Sapoznikov, D., Kark, J. D., Hense, H. W., Eckardstein, A. von, Bolte, H.-D.   +6 more
core   +1 more source

Recurrent Hypothermia and Autonomic Dysfunction Secondary to Shapiro Syndrome

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT A 44‐year‐old man presented with recurrent hypothermia, diaphoresis and hypertension. Extensive investigation for infectious, inflammatory, metabolic and endocrine aetiologies was negative. MR scan of the brain demonstrated no lesions but revealed callosal dysgenesis, consistent with Shapiro syndrome.
Naveen Kumar, Jeremy Johnson, Susanne Watkins, Eoin Mulroy   +3 more
wiley   +1 more source

Uncertainties in the Geostationary Ocean Color Imager (GOCI) Remote Sensing Reflectance for Assessing Diurnal Variability of Biogeochemical Processes

Remote Sensing, 2019
Short-term (sub-diurnal) biological and biogeochemical processes cannot be fully captured by the current suite of polar-orbiting satellite ocean color sensors, as their temporal resolution is limited to potentially one clear image per day.
Javier Concha, Antonio Mannino, Bryan Franz, Wonkook Kim   +3 more
doaj   +1 more source

FEATURES OF SHORT-PERIOD VARIABILITY OF TOTAL ELECTRON CONTENT AT HIGH AND MIDDLE LATITUDES

Solar-Terrestrial Physics, 2021
The study presents the results of comparative analysis of features of a short-period (with periods of internal gravity waves) variability of total electron content (TEC) in the ionosphere at middle (Novosibirsk) and high (Norilsk) latitudes over a long ...
A.S. Yasyukevich
doaj   +1 more source

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf, Hiba Shahulhameed, Bhabani Sankar Swain, Shengzhong (Frank) Liu, Adel Najar   +4 more
wiley   +1 more source