Photoluminescence and heavy doping effects in InP

Photoluminescence (PL) studies on LPE-grown InP layers doped with selenium and having carrier concentrations from 1 × 1018 to 1 × 1020 cm-3 have been reported in this paper. Measurements at 300 and 77 K showed that the band to band recombination peak energy shifts to values as high as 1.7 eV with increasing doping, the increase being sharp beyond 4 × 1019 cm-3. These results have been explained as being the result of the Burstein shift and the band-gap shrinkage

Socioeconomic profiles, production and resource use patterns in selected semi-arid Indian watershed villages

The collaborative watershed research and development project between ICRISAT and the Andhra Pradesh Rural Livelihoods Programme (APRLP) was initiated with an overall objective of alleviating poverty through watershed-based interventions that enhance agricultural productivity and the sustainability of rural livelihoods. The initial phase of the project focused on participatory technology evaluation in selected watersheds for development of best practices and upscalable implementation models. Characterization of the biophysical and socioeconomic systems is an important aspect of this work. A detailed baseline socioeconomic farm household survey was conducted in 2003 in selected watershed villages of Mahabubnagar, Nalgonda and Kurnool districts. This report analyzes the socioeconomic conditions and resource endowment patterns of the watershed farmers. The report provides a snapshot of the structure of production in the villages, constraints and potential for increased productivity, social and political networks, and the distribution of assets across social groups. The net household incomes from diverse sources including crop, livestock and off-farm and their contribution to total household income in the selected villages are presented. The report also analyzes the income inequalities and the effect of different income sources on household income inequalities in the watershed villages using inequality decomposition techniques

Toward a theory of repeat purchase drivers for consumer services

The marketing discipline’s knowledge about the drivers of service customers’ repeat purchase behavior is highly fragmented. This research attempts to overcome that fragmented state of knowledge by making major advances toward a theory of repeat purchase drivers for consumer services. Drawing on means–end theory, the authors develop a hierarchical classification scheme that organizes repeat purchase drivers into an integrative and comprehensive framework. They then identify drivers on the basis of 188 face-to-face laddering interviews in two countries (USA and Germany) and assess the drivers’ importance and interrelations through a national probability sample survey of 618 service customers. In addition to presenting an exhaustive and coherent set of hierarchical repeat-purchase drivers, the authors provide theoretical explanations for how and why drivers relate to one another and to repeat purchase behavior. This research also tests the boundary conditions of the proposed framework by accounting for different service types. In addition to its theoretical contribution, the framework provides companies with specific information about how to manage long-term customer relationships successfully

Enhancing helping behavior: An integrative framework for promotion planning

This is the published version. Copyright 1996 American Marketing Association.Charitable organizations play a vital role in society, as evidenced by their enormous economic and social impact. Yet, for many of them, soliciting adequate resources to carry out their mandates is a continuing struggle. Confronted with a growing need for their services, fierce competition from other charities and shrinking support from government agencies, charities may turn to marketers for help in developing effective promotional strategies. Unfortunately, marketing literature is unable to provide meaningful guidance because scant research attention has hampered a fuller understanding of why people help. A study integrates relevant research in marketing, economics, sociology and social psychology to advance theoretical understanding of helping behavior. In addition, research propositions regarding specific promotional strategies that charitable organizations cam employ to elicit help are presented

Cultural Values Differentially Moderate the Benefits of Basic Education on Two Types of National Innovation Outputs

The present study contributes to innovation research by distinguishing between national innovation in the knowledge and technology domain (knowledge and technology output) versus that in the creative industries (creative output), and examining how these two types of innovation would benefit from high-quality basic education in different cultural contexts. We argue that because creative output requires symbolic knowledge (i.e., negotiation of new meanings), it would benefit from a national context that has not only high-quality basic education but also favorable cultural values (low self-protective values or high self-expansion values). By contrast, knowledge and technology output requires analytic and synthetic knowledge mainly and thus would benefit from high-quality basic education regardless of cultural values. To test these ideas, we performed regression analyses using three archival datasets (the Programme for International Student Assessment [PISA], the Schwartz Value Survey, and the Global Innovation Index) of 32 nations. The results in general supported our predictions such that a high level of self-protective values dampens the positive relationship between quality of basic education and creative output only, but not knowledge and technology output. Implications of these findings were discussed