Results 21 to 30 of about 141,714 (269)
Synthesis and Characterization of Magnetite Nanoparticles and the Effect of [Fe(sac)2(H2O)4].2H2O complex on its magnetic properties [PDF]
Kirkuk Journal of Science, 2019 A novel inorganic complex (shell)@metal oxide (core) was demonstrated by simple and highly efficient synthesis of Fe3O4 nanoparticles (Fe3O4NPs) coated by [Fe(sac)2(H2O)4] .2H2O complex through one-pot reaction of prepared Fe3O4 nanoparticles and [Fe(sac)
Ahmed Raoof +3 more
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Contractibility and NP‐completeness [PDF]
Journal of Graph Theory, 1987 AbstractFor a fixed graph H, let H‐CON denote the problem of determining whether a given graph is contractible to H. The complexity of H‐CON is studied for H belonging to certain classes of graphs, together covering all connected graphs of order at most 4.
A.E. Brouwer (Andries), H.J. Veldman
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Revista del Hospital Italiano de Buenos Aires, 2023 Introduction: The NPS (Net Promoter Score) is an indicator used in customer experience programs to measure the satisfaction of said target audience and their loyalty. Our purpose was to send the survey and consolidate the NPS for the first time in a high
Noelia S. De Masi +4 more
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LaserTank is NP-Complete [PDF]
, 2020 We show that the classical game LaserTank is $\mathrm{NP}$-complete, even when the tank movement is restricted to a single column and the only blocks appearing on the board are mirrors and solid blocks. We show this by reducing $3$-SAT instances to LaserTank puzzles.
Per Alexandersson, Petter Restadh
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NPS MedicineWise: 20 years of change
Journal of Pharmaceutical Policy and Practice, 2018 The cost and potential harms of medicines and other health technologies are issues of concern for governments and third party payers of health care. Various means have been demonstrated to promote appropriate evidence-based use of these technologies as a
Lynn Maria Weekes +3 more
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Управленческие науки, 2023 The purpose of the study is to consider the possibility of improving the G2C payment mechanism in the context of the digital transformation of the social sphere, as well as to develop a methodological concept for a model for implementing a centralized ...
S. A. Tomilina, M. L. Dorofeev
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Shellability is NP-complete [PDF]
Journal of the ACM, 2019 We prove that for every d ≥ 2, deciding if a pure, d -dimensional, simplicial complex is shellable is NP-hard, hence NP-complete. This resolves a question raised, e.g., by Danaraj and Klee in 1978. Our reduction also yields that for every d ≥ 2 and k
Xavier Goaoc +4 more
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Early fall and late winter diets of migratory caribou in northwest Alaska
Rangifer, 2018 Lichens are the primary winter forage for large herds of migratory caribou (Rangifer tarandus). Caribou select for lichens more than they are available across the landscape and they generally avoid, during winter, habitat that has been burned by ...
Kyle Joly, Matthew D. Cameron
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Theoretical Computer Science, 2018 Recently, due to the widespread diffusion of smart-phones, mobile puzzle games have experienced a huge increase in their popularity. A successful puzzle has to be both captivating and challenging, and it has been suggested that this features are somehow related to their computational complexity \cite{Eppstein}.
ALMANZA, Matteo, Leucci S., Panconesi A.
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BMC Genomics, 2019 Background Odorant receptor genes constitute the largest gene family in mammalian genomes and this family has been extensively studied in several species, but to date far less attention has been paid to the characterization of their mRNA 3′ untranslated ...
Mohamed Doulazmi +4 more
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