Results 41 to 50 of about 304,591 (360)

Les « Éducations à » et les sciences de la nature : entre dédisciplinarisation et redisciplinarisation

open access: yesÉducation et Socialisation, 2014
In France, “educations for” has recently gained ground inside curricula, leading us to rethink the aims and operation of disciplinary lessons. We choose to focus on science disciplines (biology, geology and physics), by considering their approaches as a ...
Denise Orange Ravachol
doaj   +1 more source

Estimation of VS30 using shallow depth time-averaged shear wave velocity of Rawalpindi–Islamabad, Pakistan

open access: yesGeomatics, Natural Hazards & Risk, 2023
The time-averaged shear wave velocity of top 30 m (VS30) is the most commonly used parameter to classify a site and evaluate its amplification characteristics for the seismic design.
Muhammad Bilal Adeel   +6 more
doaj   +1 more source

Unveiling Aggregation‐Induced Singlet Fission in Push–Pull Diketopyrrolopyrrole Water Dispersed Nanoaggregates and Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Aggregates of diketopyrrolopyrrole dipolar and quadrupolar systems exhibit panchromatic absorption spectra extending in the entire visible range. Upon aggregation in water and in the solid state, their fluorescence is almost completely quenched and their singlet excited state lifetime is significantly shortened.
Roberto Cantoni   +10 more
wiley   +1 more source

Argumentation on tasks of Biology and Geology Portuguese textbooks [PDF]

open access: yesInvestigações em Ensino de Ciências, 2012
Argumentation is a transversal dimension to the process of constructing scientific knowledge, which is recognized as increasingly important. The Portuguese official curricula, such as the syllabus of the subject of biology and geology, from secondary ...
Paulo Almeida   +2 more
doaj  

Rocks Really Rock: electronic field trips via Web Google Earth can generate positive impacts in attitudes toward Earth sciences in middle- and high-school students [PDF]

open access: yesGeoscience Communication
Earth sciences (ESs) are relevant to society and its relationship with the Earth system. However, ES education in K-12 environments in the United States faces several challenges, including limited exposure to ESs, lack of awareness of ES careers, and low
C. Ortiz-Guerrero, J. Loizzo
doaj   +1 more source

Two-sided asymmetric subduction; implications for tectonomagmatic and metallogenic evolution of the Lut Block, Eastern Iran [PDF]

open access: yes, 2011
West directed subduction zones show common characteristics, such as low structural elevation, deep trench, steep slab and a conjugate back-arc basin that are opposite to those of the east directed subduction zones.
Arjmandzadeh, R.   +5 more
core   +2 more sources

Precursor Mineral Phases of Forming Mollusk Shell Nacre: A Study of Hydrated Samples

open access: yesAdvanced Functional Materials, EarlyView.
Mineral, organic phase, and water are the essential components in mollusk shell nacre formation. Their interplay is not well understood, because the hydrated material is difficult to observe at high resolution, under close to native conditions. Forming nacre is studied using environmental and cryo‐electron microscopy and hydrated ACC phases, together ...
Anna Kozell   +4 more
wiley   +1 more source

Introduction

open access: yesÉtudes Britanniques Contemporaines, 2023
This issue of Études britanniques contemporaines emanates from contributions to a workshop of the Société d’Études Anglaises Contemporaines (SEAC) at the 2022 conference of the Société des Anglicistes de l’Enseignement Supérieur in Clermont-Ferrand.
Vanessa Guignery
doaj   +1 more source

Numerical Simulation Based Targeting of the Magushan Skarn Cu-Mo Deposit, Middle-Lower Yangtze Metallogenic Belt, China [PDF]

open access: yes, 2019
The Magushan Cu–Mo deposit is a skarn deposit within the Nanling–Xuancheng mining district of the Middle-Lower Yangtze River Metallogenic Belt (MLYRMB), China.
Dai, Wenqiang   +8 more
core   +2 more sources

Multiple Twinning in Nacre and Aragonite

open access: yesAdvanced Functional Materials, EarlyView.
Electron backscatter diffraction map of a cluster of geologic aragonite, exhibiting single, double, and triple twins. The whole cluster is approximately 2 cm wide. Colors indicate crystal orientations, so that pixels where the a‐, b‐, and c‐axis is perpendicular to the image plane are green, red, and blue, respectively.
Connor A. Schmidt   +7 more
wiley   +1 more source

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