Sebanyak 14 item atau buku ditemukan

Broadband Emission in Quantum-Dash Semiconductor Laser

In conclusion, the unprecedented broadband laser emission at room temperature up to 76 nm wavelength coverage has been demonstrated using the naturally occurring size dispersion in self-assembled Qdash structure. The unique DOS of quasi-zero dimensional behavior from Qdash with wide spread in dash length, that gives different quantization effect in the longitudinal direction and band-filling effect, are shown as an important role in broadened lasing spectrum as injection level increases. After an intermediate degree of postgrowth interdiffusion technique, laser emission from multiple groups of Qdash ensembles in addition to multiple orders of subband energy levels within a single Qdash ensemble has been experimentally demonstrated. The suppression of laser emission in short wavelength and the progressive red-shift of peak emission with injection from devices with short cavity length indicate the occurrence of photon reabsorption or energy exchange among different sizes of localized Qdash ensembles. These results lead to the fabrication of the wavelength tuned quasi-supercontinuum interband laser diodes via the process of IFVD to promote group-III intermixing in InAs/InAlGaAs quantum-dash structure. Our results show that monolithically integration of different gain sections with different bandgaps for ultra-broadband laser is feasible via the intermixing technique.

In conclusion, the unprecedented broadband laser emission at room temperature up to 76 nm wavelength coverage has been demonstrated using the naturally occurring size dispersion in self-assembled Qdash structure.

Informal Learning of Active Citizenship at School

An International Comparative Study in Seven European Countries

Active citizenship is an objective of schooling in an increasingly complex context, in which social cohesion of the multicultural society is a cause for growing societal concern. International co-operation between European countries and a growing heterogeneity of the (school) populations of most European countries have led to an increased interest in education for citizenship. The core question dealt with pertains to the role that schools can play in developing citizenship through formal and informal learning. Day-to-day school life is seen as a rich environment in which aspects of functioning in a democratic society and dynamic interplay with rules, leadership and peers with different backgrounds are experienced and form a source of learning. In this view the school context functions as a micro-cosmos to exercise “school citizenship” as a bridge to societal citizenship and state citizenship. The book brings together material from Cyprus, Denmark, England, Germany, Italy, Romania and The Netherlands.

The first factor, referring to citizenship competencies and values, can be seen as
resulting from (among other origins) the informal student activities and learning
ex- periences at school. The second factor, informalactivities and experiences at
school, represents situations in which students 'learn' certain citizenship
competencies. As such, these can be considered as mediating factors between
the competencies and values on the one hand, and the school context, in which
these ...

The Principal

Leadership for a Global Society

The Principal: Leadership for a Global Society is the core textbook for aspiring and practicing K-12 school principals. Taking a practical and research-grounded approach, this inspiring text prepares school leaders to successfully face the challenges that they will deal with on a day-to-day basis and throughout their careers. From curriculum development to staff development to policy and discipline, it addresses the most up-to-date practices in developing leadership skills. The book provides a wide array of pedagogical features to help practicing and aspiring school principals improve programs, create a safer and more enriching environment for students and faculty; meet school, district, community, state, and national ideologies and standards; and much more. After reading The Principal, the educational leaders of tomorrow will be equipped with innovative, practical, and successful leadership concepts and ideas that will help them make a powerful impact on not just those who walk through the school doors, but the community as well.

Taking a practical and research-grounded approach, this inspiring text prepares school leaders to successfully face the challenges that they will deal with on a day-to-day basis and throughout their careers.

Islamic Finance: Why It Makes Sense (For You) — Understanding its Principles and Practices, 2nd Edition

Islamic finance has been growing faster than conventional finance for most of the past decade. It has done this on a model of finance that rejects interest and promotes profit sharing. How is this possible? Yet the wealth potential of Islamic finance is far from being its most attractive feature. What is most compelling about Islamic finance are its ethical principles and strong corporate governance based on Shariah law. This SECOND EDITION explains and updates how conventional financial products work — from mortgages and leases to trade finance and insurance — before delving into their Islamic versions and contains three new topics on microfinance, the ethical company and wealth successionAbout the Authors Daud Vicary Abdullah has been in the finance and consulting industry for more than 40 years, and has focused solely on Islamic finance since 2002. At Hong Leong Islamic Bank, he was instrumental in transforming an Islamic banking window into a full-fledged Islamic banking subsidiary. Today, he helms INCEIF (International Centre for Education in Islamic Finance), the global university for Islamic finance set up by Bank Negara (Central Bank of Malaysia) in December 2005. He is also a frequent speaker and commentator on matters relating to Islamic finance. Keon Chee is a senior executive in Singapore where he oversees the wills, trusts and corporate services businesses in his firm. He has many years' experience in investment research, derivatives, financial training and insurance. He obtained an MBA from Columbia University and an LL.B (Hons) from the University of London, and enjoys using his broad background in helping clients with their estate planning needs. He is also co-author of the best-selling Make Your Money Work For You.

This SECOND EDITION explains and updates how conventional financial products work — from mortgages and leases to trade finance and insurance — before delving into their Islamic versions and contains three new topics on microfinance, the ...