scholarly journals Heterojunction-based photocatalytic nitrogen fixation: Principles and current progress

2021 ◽  
Author(s):  
Hassan Ali ◽  
Milan Masar ◽  
Ali Can Can Güler ◽  
Michal Urbánek ◽  
Michal Machovsky ◽  
...  

Nitrogen fixation is considered one of the grand challenges of the 21st century for achieving the ultimate vision of a green and sustainable future. It is crucial to develop and...

Futures ◽  
1993 ◽  
Vol 25 (1) ◽  
pp. 106
Author(s):  
Richard A. Slaughter

2018 ◽  
Vol 140 (34) ◽  
pp. 10629-10638 ◽  
Author(s):  
Jing Li ◽  
Zhangquan Peng ◽  
Erkang Wang

2020 ◽  
Vol 27 (2) ◽  
pp. 159-171
Author(s):  
James L. Flexner

AbstractIt is increasingly acknowledged that 21st-century archaeology faces serious challenges from a variety of directions, ranging from the theoretical to the practical. Above all, the discipline’s entanglement with capitalism, capitalist ideologies and capitalist institutions is simply unsustainable. The concept of degrowth involves a reconceptualization of archaeology’s possible future(s) in terms of a withdrawal from capitalism and an emphasis on collective and caring praxis looking towards both a sustainable future and the possibilities of the immediate present. A degrowth approach to archaeology can provide a useful supplement to existing critiques and proposed alternatives to current practices. Degrowth proposals such as reorienting economic behaviours towards cooperative, convivial and dépense (communal use of surplus) activities while freeing people to pursue work they find meaningful have potential applications in archaeological practice that address some of the problems currently facing the discipline.


Neuron ◽  
2008 ◽  
Vol 60 (3) ◽  
pp. 406-408 ◽  
Author(s):  
Bruce M. Altevogt ◽  
Sarah L. Hanson ◽  
Alan I. Leshner

Author(s):  
Christine Hailey ◽  
Michael Drysdale ◽  
Daniel Householder

In 2008, the National Academy of Engineering (NAE) announced 14 Grand Challenges for Engineering in the 21st Century, a set of exceptionally complex problems associated with national security, quality of life, and a sustainable future. Understanding the extent to which engineering students are interested in these complex problems and the extent to which they feel confident that they can contribute to the solution of these problems could serve as a starting point to foster engagement with the Grand Challenges. This paper presents results from a survey of mechanical engineering (ME) students’ interest in the NAE Grand Challenges and their confidence in their ability to contribute to resolutions of the Challenges. Seventy-six sophomore mechanical engineering majors completed the survey composed of 36 examples of problems described within the NAE Challenge report. Survey results show a strong relationship between students’ interest and their confidence in meeting a challenge. Six students participated in a semi-structured interview regarding their experience with and knowledge of the Challenges. Interview results indicated the students had few course-related experiences that exposed them to the Challenges. Results of this study can contribute to a broader conversation among ME educators about ways to integrate the NAE Grand Challenges in undergraduate engineering education.


Sign in / Sign up

Export Citation Format

Share Document