Accountability and Moral Competence Promote Ethical Leadership

Accountability and moral competence are two factors that may have a positive effect on ethical leadership in organizations. This study utilized a survey methodology to investigate the relationship among accountability, moral competence and ethical leadership in a sample of 103 leaders from a variety of industries and different countries. Accountability was found to be a significant positive predictor of ethical leadership. Moral competence was also found to moderate this relationship such that increases in moral competence enhanced the positive effects of accountability on ethical leadership. The results of the study suggest that organizations can increase ethical leadership throughout the company via accountability (especially self-accountability) and moral competence by training their leaders to use self-monitoring behaviors and increasing moral education

Characterising resistance to Turnip mosaic virus (TuMV) in Turnip (Brassica rapa rapa)

A Brassica rapa rapa L. line has been identified with high resistance to seven isolates of Turnip mosaic virus (TuMV) (including UK 1, CHN 5, CZE 1, CDN 1, GBR 6, POL 1 and UK 4) representing the major pathotypes of the virus. Resistant plants showed no symptoms following mechanical inoculation with TuMV and no virus was detected in the plants by ELISA. A cross was made between the rapid-cycling Brassica rapa line R-o-18 (which has been found to be susceptible to all the TuMV isolates) and a plant from the resistant B. rapa rapa line. The small amount of the F1 generation seed available from this cross has been grown and inoculated with the seven TuMV isolates. F1 plants were uniformly resistant to the UK 1 isolate of TuMV, uniformly susceptible to the CHN 5 isolate (only 2 plants inoculated) and segregated for resistance and susceptibility to the other five TuMV isolates. This suggested that the parent B. rapa rapa plant used in the cross was probably homozygous for one, or more dominant resistance genes to the UK 1 isolate of TuMV and heterozygous for one, or more dominant resistance genes to the other TuMV isolates. When self seed (S1) from the parent plant from the resistant line was inoculated with the TuMV isolates GBR 6 and UK 4, the segregation for the former isolate was not significantly different from 3 resistant to 1 susceptible, whereas for the latter isolate, the segregation was 4 resistant to 9 susceptible, suggesting resistance to GBR 6 is controlled by a single dominant gene, whereas resistance to UK 4 is controlled by two or more dominant resistance genes. The putative resistance genes appear to confer hitherto unknown dominant TuMV resistance specificities, and in combination have the exciting potential of providing durable resistance to TuMV

The Symbolic, the Real, and the Imaginary between Legend and Tale

Storibuk Pairundu: Tales and Legends from the Kewa (Southern Highlands, Papua New Guinea), collected by Alex Yapua Ari and edited by Holger Jebens sketches a unique combination of tales and legends narrated by the indigenous people. Given several previous fieldworks in Papua New Guinea, this book frames in its introductory remarks the past ethnographic and anthropologic efforts in analysing fairy tales.  Additionally, this volume features some facsimiles of Alex’s handwriting. In order to make the stories more accessible to the reader, Jebens augments his work with a group of photographs that depict different aspects of the people of Pairundu, such as clothes, food, and cultivating

Consciousness in Post-Modern Times. On Modes of Self-Reflection in Contemporary English Fiction

This Bright Inward Cinema of Thought: Stream of consciousness in Contemporary English Fiction by Sara Strauß offers representative cases for the state of the literature techniques used within contemporary English fiction. Divided into six sections, the book presents a panorama of the different narratological modes in the modern era. Beginning with an introduction that considers the theoretical framework, the author shows the development of those modes by reflecting upon aspects of consciousness, such as free indirect style and interior monologue. The book concludes by highlighting the modernist question about consciousness and its reflection on the post-modernism era

How do museums narrate the future?

Northwest Coast Representations: New Perspectives on History, Art, and Encounters, edited by Andreas Etges, Viola König, Rainer Hatoum, and Tina Brüderlin, provides deep insights into Northwest Coast artifacts, the aboriginal life, and their histories. This book offers a new perspective on different facets – including traditional narratives, language, and relations among these indigenous people – while depicting a number of (china) plates that tell the story of people there. Furthermore, this volume introduces the reader to the famous artists Doug Cranmer and ends with an informative summary of the history of the Northwest Coast art market

Practical Demonstration of RGC and Modified RGC TIAs for VLC systems

This work reports a modified regulated cascode (RGC) transimpedance amplifier (TIA) with tolerance to the ultra-high photodiode capacitances encountered in visible light communication systems. The new design is proposed to ameliorate internal miller capacitance limiting effects, inherent in traditional RGC designs through the use of a cascode circuit within the RGC. The paper introduces the design principle of the proposed RGC and presents derivation of tractable mathematical equations for describing the operation. The bandwidth advantage of the new design is shown through comparing the operation of the modified circuit to the traditional one using full circuit simulations. The paper presents full circuit designs, based on discrete components and printed circuit board (PCB) construction of both circuits and contrasts their operation, experimentally demonstrating bandwidth advantage for different values of photodiode capacitances and amplifier transimpedance gain values. Measurements show that using the modified RGC TIA results in a bandwidth improvement of over 200 % relative to the conventional RGC design, achieving a bandwidth of 200 MHz at 2mathrm{K} transimpedance gain with a 300 pF photodiode capacitance. As such, this is one of the highest bandwidths reported for such high capacitances, to-date

The Effect of Ammonia on Frozen Foods

On March 3, 1962, a liquid-ammonia line broke in the frozen food storage room at the University of Tennessee Food Technology Department, and exposed the foods in the 0° F storage room to ammonia. Customers of the Department complained that the flavor and odor of the foods had been ruined. In January 1964, the same type of accident occurred on a commercial scale. A liquid-ammonia line broke in the 0° F storage room at a commercial company in Knoxville, Tennessee. The room was 30 by 60 by 15 feet (approximately 2700 cubic feet), and the amount of ammonia liberated was estimated to be 100 pounds. The break was in the corner of the room next to the door, which appeared to expose the stored food to different concentrations of ammonia. Experiments were made to compare the foods with similar fresh-frozen foods and to measure the effect on the foods\u27 acceptability. This study was made in an attempt to (1) illustrate the buffer effect on foods, (2) determine the effect of ammonia on the physical characteristics of three different foods: ground beef, strawberries, and green beans, (3) determine the effect of ammonia on the organoleptic qualities of these three foods, (4) compare the permeability of four different package materials to ammonia, and (5) elucidate the rate at which ammonia is able to penetrate into these three foods wrapped in wax paper

Demonstration of Negative Impedance Conversion for Bandwidth Extension in VLC

This work proposes and demonstrates the utility of a negative impedance converter (NIC) circuit, based on a common collector (CC) amplifier, for the generation of negative capacitance. The design principle of the proposed NIC is introduced, then a negative capacitance equals -200 pF is demonstrated using discrete devices constructed on a printed circuit board (PCB). The designed NIC is applied for the bandwidth extension of LEDs to enhance the achievable data rates in visible light communication (VLC) systems. The paper includes analytical derivations of the obtained negative capacitance as a function of circuit parameters and verifies this by both simulation and experimentally. Measurements show significant bandwidth extension by neutralising the bandwidth-limiting effect of the LED diffusion capacitance through the introduction of a parallel negative capacitance

Equivalent Circuit Model for Large-Area Photodiodes for VLC Systems

An equivalent circuit model for large-area PIN photodiodes used in visible light communication (VLC) applications is described. The modelling aims to gain insight into the effect of the photodiode intrinsic elements on the bandwidth of VLC receivers. The model parameters are extracted based on impedance measurements of two commercially available large-area PIN photodiodes. The extracted model parameters identify the photodiode series resistance as a major contributor to the bandwidth limitation of VLC receivers, especially when employing low input impedance transimpedance amplifiers (TIAs). However, such resistance is commonly ignored by most circuit designers, since it is assumed to have a negligible effect on the TIA performance. To demonstrate the accuracy of the photodiode equivalent circuit model, a design example of a low input impedance regulated cascode (RGC) TIA is described. The TIA is constructed using discrete components and a printed circuit board (PCB). The designed RGC TIA is measured using the proposed photodiode equivalent model versus a simplified model. In addition, a VLC link is constructed to measure the optoelectrical response of the large-area photodiode with the RGC TIA. The RGC frequency response measurements obtained from the full and simplified photodiode equivalent model are contrasted to the optoelectrical response, which verified that, unlike the simplified photodiode model, the proposed photodiode equivalent model can accurately predict the bandwidth performance of the VLC receiver

Exploiting negative impedance converters to extend the bandwidth of LEDs for visible light communication

This paper proposes, for the first time, an optically lossless light emitting diode (LED) bandwidth extension technique based on the adoption of negative impedance converters applied in the context of high capacity visible light communication systems. The proposed technique aims to achieve bandwidth extension by offsetting the bandwidth-limiting effect of the LED diffusion capacitance through the introduction of a parallel negative capacitance. With the proposed technique, we predict up to 200% improvement in the LED modulation bandwidth with studies based on a verified LED equivalent model