Results 31 to 40 of about 2,033,720 (344)
Exact simulation of coined quantum walks with the continuous-time model
, 2016 The connection between coined and continuous-time quantum walk models has been addressed in a number of papers. In most of those studies, the continuous-time model is derived from coined quantum walks by employing dimensional reduction and taking ...
Philipp, Pascal, Portugal, Renato
core +1 more source
Digital marketing impact on tourism in Portugal: a quantitative study [PDF]
African Journal of Hospitality, Tourism and Leisure, 2020 Almost two decades have passed since the beginning of the millennium, digital marketing and mobile technology are evolving so fast that has changed the way tourists travel, plan and experience their holidays, even more so with the newer generations ...
José Magano, Maria Nascimento Cunha
doaj
Green Practices as a Path towards the Sustainability: Evidence from Portuguese Companies
Business Systems Research, 2020 Background: In the last years, the concept of sustainability has been receiving global attention from academics, the public sector and practitioners.
Alves Wellington +2 more
doaj +1 more source
Coupling Schemes for an n su(2) Spin System [PDF]
, 2004 In the framework of the Schwinger boson representation for the su(2)-algebra, the closed form is derived for the total spin eigenstates which result from the coupling of n su(2)-spins. In order to demonstrate its usefulness, the orthogonal set for the so(5)-algebra, which is reduced to four su(2)-spin systems, is obtained.
arxiv +1 more source
Robust Contract Evolution in a TypeSafe MicroServices Architecture [PDF]
The Art, Science, and Engineering of Programming, 2020, Vol. 4,
Issue 3, Article 10, 2020 Microservices architectures allow for short deployment cycles and immediate effects but offer no safety mechanisms when service contracts need to be changed. Maintaining the soundness of microservice architectures is an error-prone task that is only accessible to the most disciplined development teams.
arxiv +1 more source
Portugal: A Paradox in Productivity [PDF]
International Productivity Monitor, 2017 Portugal has a lower level of productivity than advanced economies but, paradoxically, the recent improvement in several of its determinants did not lead to convergence in productivity levels.
Ricardo Pinheiro Alves
doaj
Graellsia, 2020 El taquínido norteamericano Trichopoda pennipes (Fabricius, 1781) es una especie parasitoide introducida en Europa, a consecuencia de su uso en el control de hemípteros plaga como Nezara viridula (Linnaeus, 1758).
Antonio Ricarte +2 more
doaj +1 more source
Spontaneous magnetization in high-density quark matter [PDF]
, 2015 It is shown that the spontaneous magnetization occurs due to the anomalous magnetic moments of quarks in the high-density quark matter under the tensor-type four-point interaction. The spin polarized condensate for each flavor of quark appears at high baryon density, which leads to the spontaneous magnetization due to the anomalous magnetic moments of ...
arxiv +1 more source
Arthritis Care &Research, EarlyView.Objective Pediatric rheumatologic diseases (PRDs) are characterized by high rates of anxiety and depression known to impact health‐related outcomes. We present guidance statements to assess and manage mental health concerns for youth with PRDs in pediatric rheumatology practice.
Natoshia R. Cunningham +21 more
wiley +1 more source
Knowledge and Management of Aquatic Ecosystems, 1990 L'étude du comportement alimentaire d'une population de truites, Salmo trutta L., est abor-dée dans la rivière Estoräos, au nord du Portugal. L'étude des macroinvertébrés benthiques et en dérive montre une composition comparable à celle d'autres rivières
VALENTE A., HELAND M.
doaj +1 more source