Results 81 to 90 of about 252,875 (288)

High Charge Carrier Mobility in Non‐Conjugated 3D Covalent Organic Frameworks

open access: yesAdvanced Materials, EarlyView.
A non‐conjugated 3D COF constructed via boronate ester linkages from tetraphenylene and pyrene‐based monomers is reported, which exhibits a high charge carrier mobility of 14 ± 1 cm2 V−1 s−1. ABSTRACT π‐Conjugation, π–π stacking, and long‐range order play a central role in determining charge transport efficiency in organic materials.
Joaquín Almarza   +11 more
wiley   +1 more source

Could Increased Expression of Hsp27, an “Anti-Inflammatory” Chaperone, Contribute to the Monocyte-Derived Dendritic Cell Bias towards Tolerance Induction in Breast Cancer Patients?

open access: yesMediators of Inflammation, 2019
Dendritic cells (DCs) are the most efficient antigen-presenting cells and link the innate immune sensing of the environment to the initiation of adaptive immune responses, which may be directed to either acceptance or elimination of the recognized ...
Ana Paula Silva de Azevedo-Santos   +8 more
doaj   +1 more source

The heroic sense of life in Vidas Novas, from Luandino Vieira

open access: yesGragoatá, 2017
The hero and his adventure constitute one of the most revisited topics of the narrative tradition, going back to the classic antiquity. Based on different figurations of the hero we can perceive specific aspects of the societies where they were produced.
Daniel Laks
doaj   +1 more source

Portugueses nas viagens de Cristovão Colombo [PDF]

open access: yes, 2006
pags.
Loureiro, Rui Manuel
core  

Word Order in Portuguese Gerund Clauses: comparing Old Portuguese and Dialectal Portuguese

open access: yesEstudos de Lingüística Galega, 2018
Differently from the standard contemporary variety of European Portuguese, in which subject-verb inversion is considered categorical in gerund clauses, in Old Portuguese and Dialectal European Portuguese we can find both subject-verb and verb-subject orders in gerund clauses.
Alexandra Fiéis, Maria Lobo
openaire   +2 more sources

Enabling Real‐Time, Non‐Ionizing 3D Imaging of Implantable Magnetic Cements Using Magnetic Particle Imaging

open access: yesAdvanced Materials Interfaces, EarlyView.
This study reports the first implantable resin cement capable of orientation‐sensitive Magnetic Particle Imaging (MPI). By coating the cement with an ultrathin iron film, the authors achieve a strong, angle‐dependent MPI signal that enables non‐ionizing, real‐time tracking of both implant position and orientation, opening new possibilities for safe ...
Gabriel C. Pinto   +10 more
wiley   +1 more source

Fatores determinantes da condição financeira dos institutos politécnicos portugueses [PDF]

open access: yes, 2017
O presente estudo pretende contribuir para um melhor conhecimento da condição financeira dos Institutos Politécnicos portugueses, pelo que apresenta como objetivo a identificação dos fatores que determinam a sua condição financeira (sustentabilidade ...
Nogueira, Sónia P.   +2 more
core  

Recent Advances on Thermochromic Inks for Security Applications

open access: yesAdvanced Materials Technologies, EarlyView.
Thermochromic security inks have garnered interest in recent years as security elements for authentication, information encryption, and anti‐counterfeiting. This review outlines different types of thermochromic materials, how they have been developed as functional inks, and how advancements in property enhancement, sustainability, and printing ...
Duarte B. Oliveira   +5 more
wiley   +1 more source

Entre o lar e o balcão

open access: yesConvergência Lusíada, 2005
Esta investigação pretende-se uma contribuição para o estudo da presença portuguesa na cidade de São Paulo, no período entre 1890 e 1950. A análise procurará recuperar a teia de relações cotidianas dos imigrantes portugueses e suas dimensões de ...
Maria Izilda Santos de Matos
doaj  

Portuguese Emigration Today [PDF]

open access: yes, 2019
AbstractPortuguese emigration increased ever since its interruption by the 1974 revolution, especially since Portugal became a member of the then European Economic Community. This increase was underpinned by the regime of free movement of people within the European Union, which has helped transform Europe into the lead destination of Portuguese ...
openaire   +2 more sources

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