Results 41 to 50 of about 1,107,392 (405)

Characterizing the zebrafish organizer: microsurgical analysis at the early-shield stage [PDF]

open access: yes, 1996
The appearance of the embryonic shield, a slight thickening at the leading edge of the blastoderm during the formation of the germ ring, is one of the first signs of dorsoventral polarity in the zebrafish embryo.
Fraser, Scott E., Shih, John
core  

Pipeline shield with single antiplatelet therapy in aneurysmal subarachnoid haemorrhage: multicentre experience

open access: yesJournal of NeuroInterventional Surgery, 2018
Background The Pipeline Embolisation Device with Shield technology (PED-Shield) is suggested to have reduced thrombogenicity. This reduced thrombogenicity may make it possible to use safely in the acute treatment of aneurysmal subarachnoid haemorrhage ...
N. Manning   +3 more
semanticscholar   +1 more source

Exploring lipid diversity and minimalism to define membrane requirements for synthetic cells

open access: yesFEBS Letters, EarlyView.
Designing the lipid membrane of synthetic cells is a complex task, in which its various roles (among them solute transport, membrane protein support, and self‐replication) should all be integrated. In this review, we report the latest top‐down and bottom‐up advances and discuss compatibility and complexity issues of current engineering approaches ...
Sergiy Gan   +2 more
wiley   +1 more source

Support at Home: Interventions to Enhance Life in Dementia (SHIELD) – evidence, development and evaluation of complex interventions

open access: yesProgramme Grants for Applied Research, 2017
Background: Dementia is a national priority and this research addresses the Prime Minister’s commitment to dementia research as demonstrated by his 2020 challenge and the new UK Dementia Research Institute. In the UK > 800,000 older people have dementia.
Martin Orrell   +15 more
doaj   +1 more source

Sun shield [PDF]

open access: yes, 1987
A shading device which is capable of compactly storing a flexible shade on a biased, window shade type spring roller is disclosed. It is controlled to deliver the shade selectively to either its operative shading or compact storage ...
Derespinis, Silvio F.   +2 more
core   +1 more source

Visualization of the HIV-1 Env glycan shield across scales

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2019
Significance The HIV-1 Env “glycan shield” masks the surface of the protein from immune recognition, yet intrinsic heterogeneity defies a typical structure–function description.
Z. Berndsen   +11 more
semanticscholar   +1 more source

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

open access: yesFEBS Letters, EarlyView.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

The deposition of miniature weaponry in Iron Age Lincolnshire

open access: yesPallas, 2011
To appreciate the significance of miniatures, we must remove them from the category of archaeological curiosities and return them to their wider social and landscape contexts.
Julia Farley
doaj   +1 more source

Proximity effect in a shielded symmetrical three-phase line [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2014
In this paper we present an approximate analysis of the proximity effect in a shielded symmetrical three-phase line with conductors of circular cross section.
Filipović Dragan, Dlabač Tatijana
doaj   +1 more source

Sound shield [PDF]

open access: yes, 1982
An improved test section for a supersonic or hypersonic wind tunnel is disclosed wherein the model tested is shielded from the noise normally radiated by the turbulent tunnel wall boundary layer.
Beckwith, I. E., Creel, T. R., Jr.
core   +1 more source

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