Results 11 to 20 of about 711,618 (267)
Microorganisms, 2022 Here, we report the emergence of the variant lineage B.1.1.523 that contains a set of mutations including 156_158del, E484K and S494P in the spike protein.
Lukas Zemaitis +6 more
doaj +1 more source
Spreading speeds and spreading sets of reaction-diffusion equations
, 2021 This paper deals with the large time dynamics of bounded solutions of reaction-diffusion equations with unbounded initial support in $\mathbb{R}^N$. We prove a variational formula for the spreading speeds in any direction, and we also describe the asymptotic shape of the level sets of the solutions at large time.
Hamel, François, Rossi, Luca
openaire +2 more sources
Introduction to Mediumband Wireless Communication
IEEE Open Journal of the Communications Society, 2023 The multipath is unavoidable in radio frequency (RF) wireless communication, and affects almost every element of the communication systems. The impact of multipath on the received signal depends on whether the delay spread (i.e., spread of time delays ...
Dushyantha A. Basnayaka
doaj +1 more source
Preventing the Spread of Pertussis in Pediatric Healthcare Settings [PDF]
Journal of the Pediatric Infectious Diseases Society, 2014 The surge in pertussis incidence in recent years underscores a critical need for effective plans to prevent transmission in pediatric healthcare settings. Adolescents and adults are common sources of infection for unimmunized or incompletely immunized infants and children with waning immunity.
Tirza A, Calderón +2 more
openaire +2 more sources
Agriculture, 2021 Fusarium solani, a soil-borne pathogen of stored potato may be disseminated, and thus, the damage caused by the pathogen may be aggravated by the grazing activities of arthropods.
Anett Mészárosné Póss +3 more
doaj +1 more source
Modelling wildland fire propagation by tracking random fronts [PDF]
Natural Hazards and Earth System Sciences, 2014 Wildland fire propagation is studied in the literature by two alternative approaches, namely the reaction–diffusion equation and the level-set method.
G. Pagnini, A. Mentrelli
doaj +1 more source
Affine sets arising from spreads [PDF]
Innovations in Incidence Geometry: Algebraic, Topological and Combinatorial, 2008 Certain affine sets arising from spreads of the projective space [math] are investigated. The affine set arising from a Lüneburg spread is studied in detail.
COSSIDENTE A +2 more
openaire +4 more sources
Evaluate the impact of COVID-19 prevention policies on supply chain aspects under uncertainty
Transportation Research Interdisciplinary Perspectives, 2020 Supply chain operations are disrupted due to natural disasters or epidemics. In the recent period, the supply chain suffers from obstacles and major challenges that affect its stages directly due to the spread of the COVID-19 epidemic around the world ...
Mohamed Grida +2 more
doaj +1 more source
Integrated Waveform Design Based on UAV MIMO Joint Radar Communication
Information, 2023 The problem of orthogonal waveform construction in multiple input/multiple output (MIMO) radar communication integration greatly limits the realization of integration technology.
Hao Ma, Jun Wang, Xin Sun, Wenxin Jin
doaj +1 more source
Towards Assessing Spread in Sets of Software Architecture Designs
, 2023 Several approaches have recently used automated techniques to generate architecture design alternatives by means of optimization techniques. These approaches aim at improving an initial architecture with respect to quality aspects, such as performance, reliability, or maintainability.
Vittorio Cortellessa +3 more
openaire +2 more sources