Results 71 to 80 of about 2,164,175 (301)

Imaging Spectrum of Unusual Pineal Region Masses: A Short Series of Four Cases

open access: yesIndian Journal of Neurosurgery, 2017
Pineal tumors are rare intracranial neoplasm with germ cell tumors and pineal parenchymal tumors being the predominant type, seen in 80 to 90% of cases. Only a few cases of glioblastomas have been reported.
Anandamoyee Dhar   +4 more
doaj   +1 more source

The weather is never neutral: Then and now

open access: yesPacific Journalism Review, 2021
Reporting on the weather may seem at first glance to be a very light story, but it can actually be a serious reflection of how we see ourselves and our changing perception of the world.
Jeremy Rees
doaj   +1 more source

Are the hosts of VLBI selected radio-AGN different to those of radio-loud AGN?

open access: yes, 2016
Recent studies have found that radio-AGN selected by radio-loudness show little difference in terms of their host galaxy properties when compared to non-AGN galaxies of similar stellar mass and redshift.
Herrera-Ruiz, N.   +4 more
core   +1 more source

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

open access: yesFEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman   +2 more
wiley   +1 more source

Space weather impact on the equatorial and low latitude F-region ionosphere over India [PDF]

open access: yesAnnales Geophysicae, 2006
For a detailed study of the space weather impact on the equatorial and low latitude F-region, the ionospheric response features are analysed during the periods of three recent and most severe magnetic storm events of the present solar cycle which ...
R. S. Dabas   +3 more
doaj   +1 more source

New Mechanism of Pulsar Radio Emission

open access: yesPhysical Review Letters, 2002
It is shown that pulsar radio emission can be generated effectively through a streaming motion in the polar-cap regions of a pulsar magnetosphere causing nonresonant growth of waves that can escape directly. As in other beam models, a relatively low-energy high-density beam is required. The instability generates quasi-transverse waves in a beam mode at
Gedalin, M., Gruman, E., Melrose, D. B.
openaire   +3 more sources

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

open access: yesFEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva   +5 more
wiley   +1 more source

Transarterial Chemoembolization in Unresectable Hepatocellular Carcinoma with Portal Vein Thrombosis: A Perspective on Survival

open access: yesOman Medical Journal, 2014
Objective: Portal vein thrombosis is considered a relative contraindication for transarterial chemoembolization (TACE) in hepatocellular carcinoma. The purpose of our study was to evaluate the efficacy of TACE treatment in patients with hepatocellular ...
Yadav Ajit   +7 more
doaj   +1 more source

The new class of FR0 radio galaxies [PDF]

open access: yes, 2015
Are the FRI and FRII radio galaxies representative of the radio-loud (RL) AGN population in the local Universe? Recent studies on the local low-luminosity radio sources cast lights on an emerging population of compact radio galaxies which lack extended ...
Allen   +33 more
core   +2 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

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