Results 71 to 80 of about 11,167 (196)

The peculiar B-type supergiant HD327083

open access: yes, 2001
Coude spectroscopic data of a poorly-studied peculiar supergiant, HD327083, are presented. Halpha and Hbeta line profiles have been fitted employing a non-LTE code adequate for spherically expanding atmospheres.
Almog   +22 more
core   +1 more source

Everyday understandings of drone incidents and misuse in the Mass Observation Archive

open access: yesThe Geographical Journal, Volume 191, Issue 2, June 2025.
Short Abstract As drones increasingly feature in everyday airspace, so too do concerns grow about drone incidents and misuse. Drawing on the development of a Mass Observation Archive directive and the testimony of correspondents, this article at once explores everyday stories of drone incidents and misuse and brings drone geographies into novel ...
Anna Jackman
wiley   +1 more source

A Novel Gene Synthesis Platform for Designing Functional Protein Polymers

open access: yesAdvanced Science, Volume 12, Issue 15, April 17, 2025.
A new gene synthesis method consisting of rolling‐circle amplification and seamless cloning facilitates the advanced design of protein polymers with repetitive sequences. This method is more cost‐effective and user‐friendly than conventional methods. Using this method, a library of polymers with different repeat units can be easily constructed.
Toshimasa Homma   +4 more
wiley   +1 more source

MiniCD4 protein resistance mutations affect binding to the HIV-1 gp120 CD4 binding site and decrease entry efficiency

open access: yesRetrovirology, 2012
Background Binding of the viral envelope protein (Env), and particularly of its gp120 subunit, to the cellular CD4 receptor is the first essential step of the HIV-1 entry process.
Grupping Katrijn   +8 more
doaj   +1 more source

Effects of mutation and some environmental factors on the physiology and pathogenicity of selected bacteria [PDF]

open access: yes
Studies with mutants of Staphylococcus aureus lacking some virulence factors suggest that the presence of deoxyribonuclease correlates with mouse pathogenicity of S.
Decicco, B. T.
core   +1 more source

Quang Tri Rain [PDF]

open access: yes, 2018
A Vietnam vet waits for another soldier in his therapy group to open up. Articles, stories, and other compositions in this archive were written by participants in the Mighty Pen Project. The program, developed by author David L.
Meier, Larry
core   +1 more source

Lessons Learned From Characterizing Long COVID Among US Medicare Beneficiaries

open access: yesPharmacoepidemiology and Drug Safety, Volume 34, Issue 2, February 2025.
ABSTRACT Purpose To characterize long‐term effects of COVID‐19 among older adults (aged ≥ 65 years). Methods This retrospective descriptive study utilized Medicare Fee‐for‐Service beneficiaries' claims to characterize post‐COVID condition diagnosis code usage, long COVID (defined as post‐COVID condition diagnoses made ≥ 28 days after an initial COVID ...
Yun Lu   +10 more
wiley   +1 more source

The Ephemeral Term “Sustainable Development” in Current EU Policies

open access: yesFolia Oeconomica Stetinensia
The term “sustainable development” is an omnipresent expression reaching the dimension of a command in the EU under the leadership of Ursula von der Leyen.
Zavřelová Veronika   +1 more
doaj   +1 more source

A non-commutative algorithm for multiplying 5x5 matrices using 99 multiplications

open access: yes, 2017
We present a non-commutative algorithm for multiplying 5x5 matrices using 99 multiplications. This algorithm is a minor modification of Makarov's algorithm which exhibit the previous best known bound with 100 ...
Sedoglavic, Alexandre
core  

Lithium abundances in the old open cluster NGC 3960 from VLT/FLAMES observations

open access: yes, 2007
Old open clusters are very useful targets to investigate mechanisms responsible for lithium (Li) depletion during the main sequence. Comparison of the Li abundances in clusters of different age allows us to understand the efficiency of the Li destruction
Prisinzano, Loredana, Randich, Sofia
core   +1 more source

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