Results 61 to 70 of about 1,457,982 (311)

Spontaneous Pneumomediastinum: Report of a Case and Review of Literature [PDF]

open access: yes, 2003
Spontaneous pneumomediastinum, defined as the presence of free air in the mediastinal structures, is a rare disease that usually take a good course with conservative therapy.
Tsuji, Kenichiro   +5 more
core  

Spontaneous Symmetry Breaking in Quantum Systems: Emergence or Reduction? [PDF]

open access: yes, 2013
Beginning with Anderson (1972), spontaneous symmetry breaking (SSB) in infinite quantum systems is often put forward as an example of (asymptotic) emergence in physics, since in theory no finite system should display it. Even the correspondence between
Landsman, Nicolaas P.   +2 more
core   +2 more sources

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

open access: yesFEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil   +3 more
wiley   +1 more source

Reliability of "Google" for obtaining medical information

open access: yesIndian Journal of Ophthalmology, 2015
Internet is used by many patients to obtain relevant medical information. We assessed the impact of "Google" search on the knowledge of the parents whose ward suffered from squint.
Mihir Kothari, Samita Moolani
doaj   +1 more source

The Meaning of Spontaneous Symmetry Breaking (I): From a simple classical model [PDF]

open access: yes, 2002
This paper, part I of a two-part project, aims at answering the simple question 'what is spontaneous symmetry breaking?' by analyzing from a philosophical perspective a simple classical model.
Liu, Chuang
core  

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Spontaneous Splenic Rupture in an Ill Returned Traveller

open access: yesEuropean Journal of Case Reports in Internal Medicine, 2020
Spontaneous splenic rupture is a known, but rare and possibly fatal, complication of different infectious diseases. We present a case of a 38-year-old male patient who presented with fever, icterus and spontaneous splenic rupture after a visit to Vietnam
David FGJ Wolthuis   +2 more
doaj   +1 more source

Spontaneous carotid artery dissection-associated medial changes in a selected autopsy population [PDF]

open access: yes, 2008
Spontaneous carotid artery dissection (SCAD) is a major cause of stroke in young adults, yet its pathogenesis remains unclear. Hereditary connective tissue diseases, hormonal influences, sympathomimetic drugs or upper respiratory tract infections may ...
Frickey, Nathalie Alexandra
core  

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

open access: yesFEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux   +7 more
wiley   +1 more source

Examining the contributions of automatic speech transcriptions and metadata sources for searching spontaneous conversational speech [PDF]

open access: yes, 2007
The searching spontaneous speech can be enhanced by combining automatic speech transcriptions with semantically related metadata. An important question is what can be expected from search of such transcriptions and different sources of related metadata
Zhang, Ke   +3 more
core   +2 more sources

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