Results 61 to 70 of about 40,502 (295)

Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park   +5 more
wiley   +1 more source

How Weyl stumbled across electricity while pursuing mathematical justice [PDF]

open access: yes, 2008
It is argued that Weyl’s theory of gravitation and electricity came out of ‘mathematical justice’: out of the equal rights direction and length. Such mathematical justice was manifestly at work in the context of discovery, and is enough (together with a ...
Afriat, Alexander
core  

Routing in multi-sink sensor networks based on gravitation field

open access: yesTongxin xuebao, 2008
The process of data forwarding in sensor networks was analogy to electric charge moving in electrostatic field. By this analogy, a method which abstracted a sensor networks to a Gravitation Field was proposed.
doaj   +2 more sources

Analysis of Factors Affecting Kiwifruit Export [PDF]

open access: yesE3S Web of Conferences, 2019
The Trade Gravitation Model was used to empirically analyze the trade flows and directions of kiwifruit in 9 countries for 5 years. The results showed that the economic scale (GDP) and institutional arrangements of trading partners were significant ...
Xu Wei
doaj   +1 more source

Changes in Immune‐Inflammation Status and Prognosis in Pregnancy‐Related Cerebral Venous Thrombosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Distinguishing pathological changes from physiological adaptations in pregnancy‐related cerebral venous thrombosis (CVT) is clinically challenging. This study aimed to characterize coagulation, immune‐inflammation, and dehydration status in these patients and assess their prognostic value.
Xiaoming Zhang   +7 more
wiley   +1 more source

An Objective Classification Scheme for Solar-System Bodies Based on Surface Gravity

open access: yesGalaxies
We introduce succinct and objective definitions of the various classes of objects in the solar system. Unlike the formal definitions adopted by the International Astronomical Union in 2006, group separation is obtained from measured physical properties ...
Dimitris M. Christodoulou   +2 more
doaj   +1 more source

Discordance Between Systemic Lupus Erythematosus Disease Activity Index Domain Weights and Their Association With Organ Damage Accrual

open access: yesArthritis Care &Research, EarlyView.
Objective Studies of damage accrual in patients with systemic lupus erythematosus (SLE) show associations with disease activity measured by the SLE Disease Activity Index 2000 (SLEDAI‐2K), but these associations are imperfect. SLEDAI scores are powerfully influenced by weightings (1–8) assigned to each domain.
Kevin Zhang   +8 more
wiley   +1 more source

Generative AI Utilization and Perspectives Among Reproductive‐Age Women with Systemic Autoimmune and Rheumatic Diseases

open access: yesArthritis Care &Research, Accepted Article.
Objective Reproductive‐age women with systemic autoimmune and rheumatic diseases (SARDs) have unique information needs related to their SARDs and reproductive health. We sought to understand their use of and receptivity to current and hypothetical generative artificial intelligence (AI) tools for health information‐seeking. Methods We conducted a cross‐
Mariam Arif   +5 more
wiley   +1 more source

Post-Newtonian limit: second-order Jefimenko equations

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
The purpose of this paper is to get second-order gravitational equations, a correction made to Jefimenko’s linear gravitational equations. These linear equations were first proposed by Oliver Heaviside in [1], making an analogy between the laws of ...
David Pérez Carlos   +2 more
doaj   +1 more source

Gravitational lensing [PDF]

open access: yesProceedings of the National Academy of Sciences, 2013
Since Galileo, the arrays of lenses in telescopes have revolutionized the way we see planets, moons, and the universe. Now gravitational lenses made of warped spacetime are helping astronomers peer into the farthest corners of the cosmos.
openaire   +2 more sources

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