Results 61 to 70 of about 28,240 (304)

Stem Cell Differentiation Disperses Transcriptional Clusters via a Conserved Surface‐Condensate Trajectory

open access: yesAdvanced Science, EarlyView.
Stem cell differentiation follows a conserved surface condensate trajectory: H3K27ac super enhancers nucleate large RNA polymerase II clusters that grow and unfold before transcriptional activity disperses them. This work reveals how biophysical forces at enhancer surfaces dynamically build and dismantle stem cell transcription hubs, reshaping cell ...
Tim Klingberg   +18 more
wiley   +1 more source

Basic lightning flash properties derived from lightning mapping array data [PDF]

open access: yes, 2016
The size and duration of lightning flashes are examined. Data from the Ebro Valley Laboratory Lightning Mapping Array is used as reference. Additional data from the VLF/LF LINET network is included.
Van der Velde, Oscar Arnoud   +7 more
core   +3 more sources

Thunderstorm total lightning activity behavior associated with transmission line trip events of power system

open access: yesnpj Climate and Atmospheric Science
High-voltage transmission lines are susceptible targets for lightning strikes. It is an interesting topic how the trip event of transmission line is related to the area, location, and intensity of thunderstorms occurring at that time and that place ...
Muzi Li   +6 more
doaj   +1 more source

Predictions of lightning activity at Neptune

open access: yesGeophysical Research Letters, 1989
Spacecraft observations of the seven innermost planets suggest that lightning is present on all planets with dense atmospheres. Thus lightning may be expected to occur on Neptune as well. Based on the level of lightning activity observed on Jupiter and on the assumption that the lightning energy dissipation rate is a constant fraction of the ...
openaire   +1 more source

Correlation vs. Causality in Other-Triggered Upward Lightning in Tower Flashes [PDF]

open access: yes
Upward lightning flashes from towers are sometimes preceded by other lightning activity in the vicinity of the tower. This observation has led to a classification of upward tower lightning into self-initiated, which are not preceded by nearby lightning ...
Rachidi, Farhad   +4 more
core   +1 more source

An Implantable Phototriggered Prodrug Depot Patch Enables Actively Programmable Drug Release for Post‐Myocardial Infarction Therapy

open access: yesAdvanced Science, EarlyView.
An implantable phototriggered prodrug depot patch (iPDP) is presented that enables actively programmable drug release post‐implantation. Covalently conjugated prodrug ensures minimal leakage; illumination parameters serve as a code to precisely control dose per release.
Haipeng Lu   +10 more
wiley   +1 more source

Seasonal Variability of Lightning Activity in Yakutia in 2009–2019

open access: yesAtmosphere, 2020
The instrumental continuous monitoring of lightning activity in Yakutia has been carried by the lightning direction finder since the 2000s. Devices for detection of sferic (very low frequency radio pulses emitted by lightning discharges) in Yakutia were ...
Lena Tarabukina, Vladimir Kozlov
doaj   +1 more source

Leading the Pack: Next‐Generation Batteries for Humanoid Robotics

open access: yesAdvanced Science, EarlyView.
Humanoid robots challenge traditional and anticipated energy technologies. Humanoid robot benchmarks of runtimes and energy demands for industry applications inform humanoid robot battery design choices at the cell level, pack level, and system level.
Matthew Bergschneider   +6 more
wiley   +1 more source

Detection of a Squall Line Event by DDW1 Total Lightning Locating System

open access: yes应用气象学报
At present, China's meteorological departments are gradually upgrading their lightning location networks from ADTD (Advanced TOA and Direction) system to DDW1 Total Lightning Location System.
Xu Shulin   +8 more
doaj   +1 more source

Анализ 11-летней динамики пространственного распределения плотности молний в Северной Азии

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2021
Проведен анализ 11-летних временных рядов количества грозовых разрядов суммарно по территориям двух крупных областей повышенной плотности молний (более 10 раз по сравнению со значениями на окружающем пространстве): условно обозначенных как восточный ...
Тарабукина, Л.Д.   +2 more
doaj   +1 more source

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