Results 91 to 100 of about 3,044,165 (306)

Environmental Education in Guangzhou in the People's Republic of China: global theme, politically determined [PDF]

open access: yes, 2001
This article is concerned with environmental education in southern China and with factors that have determined the nature of environmental curricula in secondary schools.
Stimpson, PG, Wong, FBK
core   +1 more source

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán   +13 more
wiley   +1 more source

Utopia versus Realism? Several upstream reflections

open access: yesGovernare la paura, 2016
The author challenges the canonical opposition of utopia vs. realism in political thought. Although this opposition traces back to the very origins of Western political theory, in the works of such authors as Thucydides and Plato, the author maintains ...
Giovanni Giorgini
doaj   +1 more source

Rethinking White Supremacy: who counts in 'Whiteworld' [PDF]

open access: yes, 2006
The article addresses the nature of power relations that sustain and disguise white racial hegemony in contemporary ‘western’ society. Following the insights offered by critical race theory (CRT), white supremacy is conceived as a comprehensive condition
Gillborn, David
core   +1 more source

Harmonizing the Pyrene and Ether Groups in Covalent Triazine Polymers for Highly Effective H2O2 Photosynthesis via One‐Step Two‐Electron Oxygen Reduction

open access: yesAdvanced Functional Materials, EarlyView.
The pyrene and ether groups are incorporated into the covalent triazine polymer (CTP) structure. The synergistic effect of the two functional groups endows CTP with better electron transfer, light absorption, and oxygen activation properties. An impressive apparent quantum yield (13.2% @420 nm) and a remarkable solar‐to‐chemical conversion efficiency ...
Chong Wang   +10 more
wiley   +1 more source

Entrepreneurship Education for a Sustainable Future

open access: yesDiscourse and Communication for Sustainable Education, 2018
Entrepreneurs keep our economy and society vibrant by implementing new ideas, which is why our society needs people with entrepreneurship competences. The development of our entrepreneurship competences does not begin with the start of our professional ...
Lindner Johannes
doaj   +1 more source

Two‐Dimensional Materials as a Multiproperty Sensing Platform

open access: yesAdvanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana   +11 more
wiley   +1 more source

English in the mainstream: Heritage language or lingua franca? [PDF]

open access: yes, 2006
This article examines fundamental assumptions that relate to the nature and role of the English language in Aotearoa New Zealand, including its use in society generally and in the school curriculum specifically.
Bruce, Ian
core   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha   +18 more
wiley   +1 more source

Die universiteit en die goeie lewensorde

open access: yesHTS Teologiese Studies/Theological Studies, 1986
The university and a wholesome community order The origins of the main ideas underlying university education are to be sought in the Ancient Near East, where from the earliest times the ideals of a safe and wholesome community order led to education and
J. P. Oberholzer
doaj   +1 more source

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