483 research outputs found
Top Management Team Diversity: A systematic Review
No full textEmpirical research investigating the impact of top management team (TMT)
diversity on executives’ decision making has produced inconclusive results.
To synthesize and aggregate the results on the diversity-performance
link, a meta-regression analysis (MRA) is conducted. It integrates more
than 200 estimates from 53 empirical studies investigating TMT diversity
and its impact on the quality of executives’ decision making as reflected
in corporate performance. The analysis contributes to the literature by
theoretically discussing and empirically examining the effects of TMT diversity
on corporate performance. Our results do not show a link between TMT
diversity and performance but provide evidence for publication bias. Thus,
the findings raise doubts on the impact of TMT diversity on performance
Green marketing as showcase of sustainable coffee shop business
No full text Validating the potentiality of adopting the concept of sustainable development in the field of food and beverage is the objective of the thesis. By taking advantage of the validated data, the author is able to build a green marketing plan as a showcase of the sustainable coffee shop. Additionally, the thesis aims to raise awareness of environmental issues and conservation through reducing negative impacts on the environment in business operations. The author concentrated on gathering data relating to sustainabile development and green marketing including the framework of sustainable development, the beneficial impacts of the concept, green marketing definition, and the advantage of applying green marketing into a business. The research section of the thesis is developed according to the theoretical framework.
The author adopts semi-structured in-depth interview, and a combination of non-participant and participant observation to gather the research date. The interview was conducted with the co-founder of the L restaurant with a list of questions. The interview was divided into four phases. The interview focuses on exploring the feasibility of the sustainable business model in the city of Ho Chi Minh and society's sense of a new concept. The observation investigates how the G restaurant presents their sustainable development through the marketing effort. The observation research is implemented by following the guidelines, which weres created based on the marketing mix 4ps.
A complete green marketing plan for a new sustainable coffee shop is the outcome of the thesis by applying the theory framework and the research results. This thesis allows the author to explore and expand the knowledge of a sustainable framework and sustainable development in the restaurant industry. Furthermore, the author is able to utilize the concept to reduce environmental impacts and attract more customers with the same concerns. The study can also function as a guideline for other restaurants in operating sustainably by providing them with marketing actions that lead to a more efficient business operation
New insight into cofactor-free oxygenation from combined experimental and computational approaches
No full textMolecular oxygen (O2), in spite being a potentially strong oxidant, typically displays very poor reactivity with organic molecules. This is largely due to quantum chemical reasons as O2 in its ground state is a diradical (3O2) whilst common organic substrates are in a singlet state. For this reason catalysis involving O2 as a reactant is typically mediated by enzymes containing redox metal and/or organic co-factors. Cofactor-independent oxygenases (and oxidases) are therefore intriguing enzymes from a fundamental viewpoint. This review looks at recent advances that have been made in understanding of this class of intriguing biocatalysts highlighting the power of an inter-disciplinary approach involving structural biology, spectroscopy and theoretical methods
Smartphone identification database
No full textThis folder is composed of six .mat files containing the data used in the article ''Smartphone Identification via Passive Traffic Fingerprinting: a Sequence-to-Sequence Learning Approach'' by Francesca Meneghello, Michele Rossi and Nicola Bui.
The Python source code is available at https://github.com/signetlabdei/smartphone_identification.
If you use this dataset, please cite our paper:
@article{Meneghello2020Network,
author={Francesca Meneghello and Michele Rossi and Nicola Bui},
title={Smartphone Identification via Passive Traffic Fingerprinting: a Sequence-to-Sequence Learning Approach},
journal={IEEE Network Magazine},
volume={},
number={},
pages={},
year={2020}
Tagging of Biomedical Articles on CiteULike: A Comparison of User, Author and Professional Indexing
No full textThis paper examines the context of online indexing from the viewpoint of three different groups: users, authors, and professional indexers. User tags, author keywords and descriptors were collected from academic journal articles, which were both indexed in Pubmed and tagged on CiteULike, and analysed. Descriptive statistics, informetric measures, and thesaural term comparison shows that there are important differences in the use of keywords between the three groups in addition to similarities which can be used to enhance support for search and browse. While tags and author keywords were found that matched descriptors exactly, other terms which did not match but provided important expansion to the indexing lexicon were found. These additional terms could be used to enhance support for searching and browsing in article databases as well as to provide invaluable data for entry vocabulary and emergent terminology for regular updates to indexing systems. Additionally, the study suggests that tags support organisation by association to task, projects and subject while making important connections to traditional systems which classify into subject categories
Comparison of pollution diffusion between river mouth inflow (RMI) and beach uniform inflow (BUI) in sudden water accident
No full textRecently high-frequency sudden pollution originated from an explosion of industrial plants, transportation accidents and oil spills was often continuously diffused into downstream water. In this paper, the features of pollution diffusion including the boundary shape, concentration gradients and covered area from the two typical sudden water accidents of river mouth inflow (RMI) and beach uniform inflow (BUI) were investigated and compared by utilizing computational fluid dynamic (CFD) model and lab-scale experiments. It was found that a circular boundary shape was formed when diffusion velocity was slower than threshold velocity of 0.0016 m/s, however, a long strip of boundary was replaced at the speed of more than 0.0016 m/s from RMI, using CFD simulation under lab-scale. The coincidence degree of diffusion over time in terms of covered area and boundary shape between CFD simulation and the lab-scale experiment was reached to 97.6–99.6% both in RMI and BUI. The result indicated that CFD was applied to simulate the pollution diffusion from the two patterns of sudden water accidents under full-scale. Results showed that a sharp peak was capable of appearing in mainstream and there was a ring current appearing in side wing from RMI. However, the mainstream with a gentle peak and the side wing with symmetrical diffusion were arising in BUI. In addition, a high concentration gradients and a clear concentration contours were both exhibited in RMI and BUI. The results may assist in offering emergency response to control sudden pollution diffusion, further supporting the scope of pollution hazard assessment and ecological remediation to recover pollution region.The author acknowledges the financial support from the National Natural Science Foundation of China (No. 31070401), the College Natural Science Foundation of Major Project of Anhui, China, the Foundation of Provincial Key Laboratory of Biotic Environment and Ecological Safety in Anhui
"""I feel impelled to write"": male intimacy, epistolary privacy, and the culture of letter writing during the American Civil War"
No full textThis dissertation sheds light on the gendered and commemorative history of the Civil War. Many historians have recognized the importance of soldiers' letters as evidence of the cultural and ideological mentalities of Americans in wartime. Yet the scholarship has failed to notice the urgency with which soldiers sought to control and maintain the privacy of their correspondences. For millions of combatants, the Civil War presented problems of maintaining privacy unknown in civilian life. Yankees and rebels alike defined their letters as a form of personal property and regarded unauthorized access to their letters not simply as theft but as violations of their person. The safeguards they sought to impose on their mail reveal how these soldiers tried to defend the boundaries of privacy in the midst of a military environment generally devoid of personal space.
This dissertation draws on thousands of soldiers' letters held at over three dozen archives and libraries across the United States. The prevailing model of combat motivation emphasizes the ideological components of cause and country. Soldiers' wartime letters suggest they fought not just for nation and ideology but also for the personal stakes associated with their public standings as honorable men. Women on the home front played key roles as the epistolary confidants of soldiers. After the war, these women, as well as veterans themselves, sought to maintain the public façade of masculine heroism by silencing the wartime admissions of fear, doubt, and desertion.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2018-05-01The student, Long Bui, accepted the attached license on 2016-04-21 at 17:43.The student, Long Bui, submitted this Dissertation for approval on 2016-04-21 at 17:49.This Dissertation was approved for publication on 2016-04-22 at 15:15.DSpace SAF Submission Ingestion Package generated from Vireo submission #9424 on 2016-07-07 at 13:50:35Made available in DSpace on 2016-07-07T20:27:56Z (GMT). No. of bitstreams: 3
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The 2021 German Federal Election on Social Media: Analysing Electoral Risks Created by Twitter and Facebook
No full textSafeguarding democratic elections is hard. Social media plays a vital role in the discourse around elections and during electoral campaigns. The following article provides an analysis of the ‘systemic electoral risks’ created by Twitter and Facebook and the mitigation strategies employed by the platforms. It is based on the 2020 proposal by the European Commission for the new Digital Services Act (DSA) in the context of the 2021 German federal elections. This article focuses on Twitter and Facebook and their roles during the German federal elections that took place on 26 September 2021. We analysed three systemic electoral risk categories: 1) the dissemination of illegal content, 2) negative effects on electoral rights, and 3) the influence of disinformation and developed systematic categories for this purpose. In conclusion, we discuss how to respond to these challenges as well as avenues for future research
Geomagnetically induced current sensitivity to assumed substation grounding resistances in the power system
No full textA geomagnetic disturbance (GMD) can result in severe damage to the power grid by inducing quasi-dc currents called geomagnetically induced current (GIC). Protection against GMD therefore necessitates the accurate estimation of GICs. GICs estimation is challenging because it depends on substation grounding resistances, which 1) depend more on the local soil and earth conditions than the construction of the substations themselves and 2) can vary by more than an order of magnitude, from 0.05 to 1.5 ohms. Substation grounding resistances are not contained in standard power system models, and approximate values are often used in GIC studies. This motivates the study in this thesis, which proposes a method to calculate the sensitivity of GIC at any substation due to both the substation being studied and neighboring substations’ grounding resistances. The work provides an algorithm to quantify the degree of dependence of the GICs at any given substation. The effectiveness of the method is illustrated using parameters from a real world power system. The case study results using the 20-bus GIC test system and a model of the North American Eastern Interconnect indicate that the substation GICs can be quite dependent on the assumed local substation grounding values. Subsequently, the same systems were studied to include neighboring substation grounding resistances. Although a few cases were dependent on the neighboring values, the local substation grounding resistances were more significant overall. These methods and results are further discussed and analyzed in this work.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2018-12-01The student, Uyen Bui, accepted the attached license on 2016-12-04 at 13:22.The student, Uyen Bui, submitted this Thesis for approval on 2016-12-04 at 13:38.This Thesis was approved for publication on 2016-12-05 at 09:55.DSpace SAF Submission Ingestion Package generated from Vireo submission #10427 on 2017-02-28 at 14:37:16Made available in DSpace on 2017-03-01T16:37:06Z (GMT). No. of bitstreams: 2
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The Bui hydropower project: meeting Ghana’s energy needs with China’s help
No full textThe world has been transfixed by China’s spectacular rise from an agrarian backwater nation to a global economic, military and financial powerhouse. With its newfound financial heft, China has thrown its weight around the world, provoking angst and controversy. And nowhere has China’s presence and engagement been more scrutinized, analyzed and criticized than in Africa where it is rebuilding infrastructure and providing other types of assistance to agriculture, water, health, education, and other sectors. There are two competing narratives about China in Africa. One narrative frequently focuses on pessimistic assertions about the exploitative aspects of the engagement and depicts China as a marauding invader plundering Africa’s resources and destroying the continent’s pristine environment. The counter narrative rejects the notion that China’s foray into Africa is neither neocolonialist in nature nor is it spurred purely by its insatiable desire to exploit Africa’s boundless natural resources. This view stresses that China’s development model is inspirational and worthy of emulation by African countries plagued by poverty and weak economies. It contends that China uses an approach that is based on fair trade solidarity and is challenging the so-called Washington Consensus through the establishment of an economic footprint in Africa. The dissertation explores the ever-intensifying relations between Ghana and China as a window into assessing China-Africa relations. The dissertation uses the Bui Hydropower dam construction in Ghana funded by China and built by a Chinese state-owned firm as case study. I used a variety of methods to collect data for this project and relied on policy documents, speeches and media reports on Africa-China and Ghana-China relations to source data. role in bringing the Bui Dam into reality was pivotal; the dam was constructed to bring electricity to sections of the country that lie outside the reach of the national electrical grid. And like Ghana, African countries prefer to have China finance their infrastructural projects rather than their traditional partners who insist on conditionalities that China ignores. China should not be seen as the dominant partner in its relations with Africa. China’s relations with Africa are a partnership characterized by dynamic interactions and influence.Ph.D.Includes bibliographical reference
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