Results 71 to 80 of about 2,513,721 (330)

Física e biologia: possíveis limites de demarcação conceitual Possible limits of conceptual demarcation

open access: yesTrans/Form/Ação, 2006
A partir do texto do físico alemão E.Schroedinger, O que é vida? (1943), analisam-se os possíveis limites de demarcação conceitual entre física e biologia. Há um limite possível entre física e biologia? Ou a biologia pode ser reduzida à física?
Arthur Araújo
doaj   +1 more source

Bounds for Estimators of Ergodic Averages [PDF]

open access: yes, 2013
We consider different ergodic averages and estimate the measure of the set of points in which the averages apart from a given value. The cases considered are empirical measures of cylinders in symbolic spaces and averages of maps given a kind Lyapunov ...
Meson, Alejandro Mario   +1 more
core   +2 more sources

A Quantitative Printability Framework for Programmable Assembly of Pre‐Vascular Patterns via Laser‐Induced Forward Transfer

open access: yesAdvanced Healthcare Materials, EarlyView.
Laser‐Induced Forward Transfer (LIFT) is presented as a powerful micropatterning tool. An objective printability framework is developed to assess optimal printing parameter combinations. The technology is further explored for its ability to deterministically deposit microdroplets at predefined locations following CAD designs, enabling the patterning of
Cécile Bosmans   +8 more
wiley   +1 more source

Transporte mucociliar e sua relação com o nível de atividade física na vida diária em fumadores saudáveis e não fumadores

open access: yesRevista Portuguesa de Pneumologia, 2012
ResumoObjetivosInvestigar a relação entre o transporte mucociliar e a atividade física na vida diária (AFVD) em fumadores e não fumadores.MétodosCinquenta e dois fumadores foram submetidos à avaliação do transporte mucociliar (Tempo de Trânsito de Sacarina, TTS), dos níveis de monóxido de carbono no ar expirado, da função pulmonar e do histórico ...
M. Proença   +7 more
openaire   +2 more sources

Convergence of the barycentre of measures from Fuchsian action groups [PDF]

open access: yes, 2013
We prove the pointwise ergodic convergence of the sequence of barycentres of empirical measures which are defined from the action of Fuchsian groups and by maps valuated in CAT(0)−spaces.
Meson, Alejandro Mario   +1 more
core   +2 more sources

Charged pion masses under strong magnetic fields in the NJL model [PDF]

open access: yes, 2018
The behavior of charged pion masses in the presence of a static uniform magnetic field is studied in the framework of the two-flavor NJL model, using a magnetic field-independent regularization scheme.
Coppola, Máximo   +2 more
core   +3 more sources

Strain Engineering of Magnetoresistance and Magnetic Anisotropy in CrSBr

open access: yesAdvanced Materials, EarlyView.
Biaxial compressive strain significantly enhances magnetoresistance and critical saturation fields in thin flakes of the 2D magnet CrSBr, along all three crystallographic axes. First‐principles calculations link these effects to strain‐induced increases in exchange interactions and magnetic anisotropy.
Eudomar Henríquez‐Guerra   +19 more
wiley   +1 more source

Caracterização física e química de frutos de cultivares de amoreira do gênero Morus

open access: yesBoletim de Indústria Animal, 2012
O trabalho teve como objetivo a avaliação das características físicas e químicas de frutos de cultivares de amoreira (Morus spp.). O experimento foi conduzido em Marília, São Paulo, onde foram avaliados frutos de dez cultivares de amoreira, sendo elas IZ 1/1, IZ 1/2, IZ 1/3, IZ 1/12, IZ 2/1, IZ 3/1, IZ 4/1 e IZ 15/1, além de Korin e Miura.
Fumiko Okamoto   +6 more
openaire   +3 more sources

Natural rubber/styrene-butadiene rubber blends prepared by solution mixing: Influence of vulcanization temperature using a Semi-EV sulfur curing system on the microstructural properties [PDF]

open access: yes, 2017
Blends of natural rubber (NR) and styrene-butadiene rubber (SBR) were prepared by solution mixing and vulcanized with sulfur and accelerator in a Semi-EV system at 433 K and 443 K in order to study the vulcanization kinetic and the influence of ...
Macchi, Carlos Eugenio   +3 more
core   +1 more source

Stepwise On‐Surface Synthesis and Transformations of Two‐Dimensional Covalent Organic Frameworks by Controlled Thermal Stimuli

open access: yesAdvanced Materials, EarlyView.
The seminal transformation of a 2D‐COF (SURFCOF‐IMDEA1) into a 2D porous COF (SURFCOF‐IMDEA2) on Au(111) by a sequential C‐C coupling and ladderization triggered by thermal annealing steps at increasing temperatures is reported. Abstract The development of covalent organic frameworks (COFs) is currently a primary objective in materials science, taking ...
Ana Barragán   +11 more
wiley   +1 more source

Home - About - Disclaimer - Privacy