32,053 research outputs found
Technology and science education
The incorporation of technology into the school curriculum is part of a worldwide trend in education. The way in which technology is incorporated depends on which country the reform is initiated in. The New Zealand Curriculum Framework (Ministry of Education, 1993a) includes science and technology as distinct learning areas. This chapter considers the view of technology expressed in both science in the New Zealand Curriculum (Ministry of Education, 1993b) and in Technology in the New Zealand Curriculum (Ministry of Education, 1995).
The chapter is divided into four sections. Firstly, the concept of technology in the science curriculum is identified and discussed; secondly, the use of some types of technological application to enhance the learning of science outcomes is considered; thirdly, the technology curriculum itself is discussed in order to highlight the concept of technology underpinning this statement so that comparisons can be made with the concept employed in the science curriculum, and finally the introduction of technology outcomes by science teachers in a science environment is explored
An experimental investigation of radiation effects in semiconductors Semiannual status report, Jul. 1 - Dec. 31, 1967
Recombination luminescence of irradiated silicon, and hole-optical phonon interaction in degenerate silico
Reviewing the field of technology education in New Zealand
In this chapter we discuss the development of technology as a field of study within compulsory education in New Zealand. We argue that technology education has found a place in the national curriculum, research, and teacher education, resulting in technology classroom practice to some degree in all New Zealand schools
An experimental investigation of radiation effects in semiconductors semiannual status report, 1 jul. - 31 dec. 1964
Effects of fast electron irradiation on silicon semiconductor
A note on finance, inflation, and economic growth
This paper examines the impact of inflation on the relationship between financial development and economic growth. Using panel-data techniques applied to observations from more than seventy-five countries, we find that the positive effect of financial development on economic growth diminishes as inflation increases.
Geotagging One Hundred Million Twitter Accounts with Total Variation Minimization
Geographically annotated social media is extremely valuable for modern
information retrieval. However, when researchers can only access
publicly-visible data, one quickly finds that social media users rarely publish
location information. In this work, we provide a method which can geolocate the
overwhelming majority of active Twitter users, independent of their location
sharing preferences, using only publicly-visible Twitter data.
Our method infers an unknown user's location by examining their friend's
locations. We frame the geotagging problem as an optimization over a social
network with a total variation-based objective and provide a scalable and
distributed algorithm for its solution. Furthermore, we show how a robust
estimate of the geographic dispersion of each user's ego network can be used as
a per-user accuracy measure which is effective at removing outlying errors.
Leave-many-out evaluation shows that our method is able to infer location for
101,846,236 Twitter users at a median error of 6.38 km, allowing us to geotag
over 80\% of public tweets.Comment: 9 pages, 8 figures, accepted to IEEE BigData 2014, Compton, Ryan,
David Jurgens, and David Allen. "Geotagging one hundred million twitter
accounts with total variation minimization." Big Data (Big Data), 2014 IEEE
International Conference on. IEEE, 201
Approximation Techniques for Planar Periodic Structures
The rigorous calculation of electromagnetic properties of periodic meshes using moment methods requires considerable algebraic work and computer resources. In this paper, a number of easy to use approximation techniques for analyzing thin structures with square, rectangular, and circular holes are presented. Formulas for the effective impedante of these meshes are described which can easily take into account oblique incidence and the presence of a dielectric substrate. In addition, techniques for analyzing more complex-shaped apertures such as a cross are discussed. These methods are more accurate than existing approximation techniques and can be applied to a wide range of situations that could not be handled before
- …
