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“Astropolitics” and weaponisation of space—Drawing past lessons to address space arms' escalation

open access: yesFrontiers in Political Science
Once a distant dream, today space is not only achievable, but has become the most important domain for both civilian and military purposes. Modern society and its economy have come to vitally rely on space assets for running crucial services, from ...
Francesco Ancona, Francesco Ancona
doaj   +1 more source

Da, pour and to clauses in gradually teleonomic verb constructions. A comparative approach to Serbian, French and English [PDF]

open access: yesJužnoslovenski Filolog, 2017
This paper examines how the Serbian “da” subordinate clause, the French preposition pour and the English particle to, mainly used in clauses expressing purpose, can become linguistic forms expressing temporal and oppositional values.
Ašić Tijana V.   +3 more
doaj   +1 more source

Spectral Gaps for Periodic Elliptic Operators with High Contrast: an Overview [PDF]

open access: yes, 2002
We discuss the band-gap structure and the integrated density of states for periodic elliptic operators in the Hilbert space $L_2(\R^m)$, for $m \ge 2$.
Hempel, Rainer, Post, Olaf
core   +2 more sources

New family of special numbers associated with finite operator [PDF]

open access: yesMathematica Moravica, 2020
Using the notion of the generating function of a function, we define an operator with whom we manage to build a large family of numbers and polynomials. This technique permits to give the closed formulae and interesting combinatorial identities.
Goubi Mouloud
doaj   +1 more source

Quantization of pseudo-differential operators on the torus [PDF]

open access: yes, 2008
Pseudo-differential and Fourier series operators on the n-torus are analyzed by using global representations by Fourier series instead of local representations in coordinate charts.
Ruzhansky, Michael, Turunen, Ville
core   +3 more sources

Some q‐Rung Orthopair Fuzzy Aggregation Operators and their Applications to Multiple‐Attribute Decision Making

open access: yesInternational Journal of Intelligent Systems, 2018
The q‐rung orthopair fuzzy sets (q‐ROFs) are an important way to express uncertain information, and they are superior to the intuitionistic fuzzy sets and the Pythagorean fuzzy sets.
Peide Liu, Peng Wang
semanticscholar   +1 more source

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

open access: yesFEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer   +7 more
wiley   +1 more source

Hölder-Type Inequalities for Power Series of Operators in Hilbert Spaces

open access: yesAxioms
Consider the power series with complex coefficients h(z)=∑k=0∞akzk and its modified version ha(z)=∑k=0∞|ak|zk. In this article, we explore the application of certain Hölder-type inequalities for deriving various inequalities for operators acting on the ...
Najla Altwaijry   +2 more
doaj   +1 more source

Outlines of presentations [PDF]

open access: yes, 1949
Illinois Custom Spray Operators' School Outline of Presentations. January 12-14, 1949.
Illinois Custom Spray Operators' School
core  

Operators quasisimilar to a normal operator [PDF]

open access: yesProceedings of the American Mathematical Society, 1975
A necessary and sufficient condition for an operator to be quasisimilar to a normal operator is given.
openaire   +2 more sources

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