Intersubband transitions in nonpolar GaN/Al(Ga)N heterostructures in the short and mid-wavelength infrared regions

This paper assesses nonpolar m- and a-plane GaN/Al(Ga)N multi-quantum-wells grown on bulk GaN for intersubband optoelectronics in the short- and mid-wavelength infrared ranges. The characterization results are compared to those for reference samples grown on the polar c-plane, and are verified by self-consistent Schr\"odinger-Poisson calculations. The best results in terms of mosaicity, surface roughness, photoluminescence linewidth and intensity, as well as intersubband absorption are obtained from m-plane structures, which display room-temperature intersubband absorption in the range from 1.5 to 2.9 um. Based on these results, a series of m-plane GaN/AlGaN multi-quantum-wells were designed to determine the accessible spectral range in the mid-infrared. These samples exhibit tunable room-temperature intersubband absorption from 4.0 to 5.8 um, the long-wavelength limit being set by the absorption associated with the second order of the Reststrahlen band in the GaN substrates

Corporate Social Responsibility: The Efficacy of Matched Between Not-For-Profits and Multinational Enterprises in Developed and Emerging Markets

Responding to Pope Francis’s appeals in Laudato si’ and to societal pressures, multinational enterprises (MNEs; Dunning, 1977) are increasingly searching for ways to structure demands for corporate social responsibility (CSR). Previous literature, however, suggests that the positive effects of CSR initiatives are not certain; moreover, alliance-based CSR remains an understudied area. Therefore, we propose a model based on a “matched” alliance approach to increase the efficacy of, and positive response to, CSR initiatives. We argue that MNEs increase the legitimacy and/or business-process efficiency of CSR initiatives by partnering with not-for-profit (NFP; Schwenk, 1990) organizations in alliances that “match” common objectives with complementary capabilities, which in turn results in positive responses to CSR initiatives. We propose that CSR activities from the following matched alliances will result in more positive media coverage: between MNEs and NFPs, between a local MNE and local NFPs (vs. a foreign MNE and local NFPs), and between local MNEs and NFPs in an emerging (vs. developed) market. Our case and media-intensity analyses for Walmart’s Katrina Assistance, Infosys’s Campus Connect, and Unilever’s Project Shakti span matched alliances between local and foreign MNEs in emerging and developed markets. Our findings document positive media coverage surrounding CSR initiatives whenever MNEs partner with matched local NFPs. In addition, positive media coverage is more for local rather than foreign MNEs, and for CSR initiatives in emerging, rather than developed, markets

Performance of Indian crossbred wool on khadi spinning system

127-132HP Crossbred, JK Crossbred and JK Merino yarns have been spun on the New Model Charkha (NMC) spinning system to find out the suitability of Indian crossbred wool in Khadi sector. These crossbred wools produced in the north temperature region of India have been spun into medium quality yarn linear density of 42 tex. The pure crossbred wool yarns have higher U%, imperfections and hairiness index; and lower tenacity, elongation-at-break and coefficient of friction. The mixing of Australian merino wool with JK crossbred wool significantly improves yarn performance in terms of fineness (31 tex), evenness (U%), imperfections and hairiness index. The tenacity, elongation-at-break and coefficient of friction of mixed yarns increase significantly by mixing of Australian merino wool with JK crossbred wool. These findings will help in increasing the utilization of crossbred wool and reducing the costing of end products

Performance of Indian crossbred wool on khadi spinning system

HP Crossbred, JK Crossbred and JK Merino yarns have been spun on the New Model Charkha (NMC) spinning system to find out the suitability of Indian crossbred wool in Khadi sector. These crossbred wools produced in the north temperature region of India have been spun into medium quality yarn linear density of 42 tex. The pure crossbred wool yarns have higher U%, imperfections and hairiness index; and lower tenacity, elongation-at-break and coefficient of friction. The mixing of Australian merino wool with JK crossbred wool significantly improves yarn performance in terms of fineness (31 tex), evenness (U%), imperfections and hairiness index. The tenacity, elongation-at-break and coefficient of friction of mixed yarns increase significantly by mixing of Australian merino wool with JK crossbred wool. These findings will help in increasing the utilization of crossbred wool and reducing the costing of end products

Trapping of Vibrational Energy in Crumpled Sheets

We investigate the propagation of transverse elastic waves in crumpled media. We set up the wave equation for transverse waves on a generic curved, strained surface via a Langrangian formalism and use this to study the scaling behaviour of the dispersion curves near the ridges and on the flat facets. This analysis suggests that ridges act as barriers to wave propagation and that modes in a certain frequency regime could be trapped in the facets. A simulation study of the wave propagation qualitatively supported our analysis and showed interesting effects of the ridges on wave propagation.Comment: RevTex 12 pages, 7 figures, Submitted to PR

Quantum tomographic cryptography with Bell diagonal states: non-equivalence of classical and quantum distillation protocols

We present a generalized tomographic quantum key distribution protocol in which the two parties share a Bell diagonal mixed state of two qubits. We show that if an eavesdropper performs a coherent measurement on many quantum ancilla states simultaneously, classical methods of secure key distillation are less effective than quantum entanglement distillation protocols. We also show that certain Bell diagonal states are resistant to any attempt of incoherent eavesdropping.Comment: 9 pages. 2 figures There was an error in the formula 4 (transformation of Bell states). This error does not change the main result of the paper, namely, that quantum distillation is more powerful than classical advantage distillatio

Nutrition Knowledge, Personal Motivation, And Food Label Use Among Indian Adults With Multiple Chronic Conditions: A Moderated Mediation Model.

Background: There has been little research conducted within developing nations examining the link between knowledge and diet-related perceptions and behaviors. In addition, prior investigations have rarely examined interrelationships between knowledge and other nutrition-related factors. Purpose: This study explored the relationship between nutrition knowledge, social/informational factors, and diet-related outcomes among Indian adults with multiple chronic conditions. Methods: A snowball sampling technique was employed to recruit individuals. Hierarchical regression analysis was employed to examine mediating and moderating relationships. Results: Results from a cross-sectional survey indicated that knowledge only predicted use among those reporting greater pressure/concern from close others. Furthermore, social support and social trust were found to moderate the relationship between knowledge and diet-related perceptions and behaviors. Discussion: Results suggest that social factors may play a critical role in moderating the impact of nutritionknowledge on diet-related perceptions and behaviors. Translation to Health Education Practice: Public Health Education interventions targeting developing nations should aim to maximize consumers\u27 nutritionknowledge while identifying valued close others who can help encourage positive health action. Furthermore, Health Educators as well as government and local communities must engage in outreach efforts to reinforce or, if necessary, change public perceptions regarding the food industry

Tissue distribution and antileishmanial activity of liposomised Amphotericin-B in Balb/c mice

Antileishmanial activity and organ distribution of the antifungal drug Amphotericin-B in free and liposomised form have been studied in Balb/c mice infected with Leishmania donovani. Results indicate that Amphotericin-B in the liposomised form is significantly more active than the free form. This increase in the activity is perhaps related to the reduced drug toxicity rather than the altered drug distribution at the site of infection