59 research outputs found
Immigrant Integration Through Public Relations and Public Diplomacy: An Analysis of the Turkish Diaspora in the Capital of the European Union
Cataloged from PDF version of article.This research focuses on the European Union's (EU) public relations and public diplomacy efforts for immigrant integration. It uncovers the relationship between the EU and leaders of Turkish associations in Brussels, Belgium. In-depth interviews with Turkish association leaders reveal the way they see themselves and the Turkish diaspora, how they reflect on their national identities, and their understanding of EU public diplomacy and public relations strategies. The communication strategies Turkish associations use to gather information about immigrant integration and their opinions on EU communication strategies are also studied. In addition, the research investigates whether two-way communication exists between the Turkish associations and the EU, and unveils the strategic communication and public relations strategies the Turkish diaspora uses to influence public policy and to engage in lobbying
The challenge of new gatekeepers for public relations:A comparative analysis of the role of social media influencers for European and Latin American professionals
Vanishing point detection for visual surveillance systems in railway platform environments
© 2018 Elsevier B.V. Visual surveillance is of paramount importance in public spaces and especially in train and metro platforms which are particularly susceptible to many types of crime from petty theft to terrorist activity. Image resolution of visual surveillance systems is limited by a trade-off between several requirements such as sensor and lens cost, transmission bandwidth and storage space. When image quality cannot be improved using high-resolution sensors, high-end lenses or IR illumination, the visual surveillance system may need to increase the resolving power of the images by software to provide accurate outputs such as, in our case, vanishing points (VPs). Despite having numerous applications in camera calibration, 3D reconstruction and threat detection, a general method for VP detection has remained elusive. Rather than attempting the infeasible task of VP detection in general scenes, this paper presents a novel method that is fine-tuned to work for railway station environments and is shown to outperform the state-of-the-art for that particular case. In this paper, we propose a three-stage approach to accurately detect the main lines and vanishing points in low-resolution images acquired by visual surveillance systems in indoor and outdoor railway platform environments. First, several frames are used to increase the resolving power through a multi-frame image enhancer. Second, an adaptive edge detection is performed and a novel line clustering algorithm is then applied to determine the parameters of the lines that converge at VPs; this is based on statistics of the detected lines and heuristics about the type of scene. Finally, vanishing points are computed via a voting system to optimize detection in an attempt to omit spurious lines. The proposed approach is very robust since it is not affected by ever-changing illumination and weather conditions of the scene, and it is immune to vibrations. Accurate and reliable vanishing point detection provides very valuable information, which can be used to aid camera calibration, automatic scene understanding, scene segmentation, semantic classification or augmented reality in platform environments
Replication-Deficient Particles: New Insights into the Next Generation of Bluetongue Virus Vaccines.
Bluetongue virus (BTV) is endemic in many parts of the world, often causing severe hemorrhagic disease in livestock. To date, at least 27 different serotypes have been recognized. Vaccination against all serotypes is necessary to protect susceptible animals and to prevent onward spread of the virus by insect vectors. In our previous studies, we generated replication-deficient (disabled infectious single-cycle [DISC]) virus strains for a number of serotypes and reported preliminary data on their protective efficacy in animals. In this report, to advance the DISC vaccines to the marketplace, we investigated different parameters of these DISC vaccines. First, we demonstrated the genetic stabilities of these vaccine strains and also the complementing cell line. Subsequently, the optimal storage conditions of vaccines, including additives, temperature, and desiccation, were determined and their protective efficacies in animals confirmed. Furthermore, to test if mixtures of different vaccine strains could be tolerated, we tested cocktails of DISC vaccines in combinations of three or six different serotypes in sheep and cattle, the two natural hosts of BTV. Groups of sheep vaccinated with a cocktail of six different vaccines were completely protected from challenge with individual virulent serotypes, both in early challenge and after 5 months of challenge without any clinical disease. There was no interference in protection between the different vaccines. Protection was also achieved in cattle with a mixture of three vaccine strains, albeit at a lesser level than in sheep. Our data support and validate the suitability of these virus strains as the next-generation vaccines for BTV. IMPORTANCE: Bluetongue (BT) is a debilitating and in many cases lethal disease that affects ruminants of economic importance. Classical vaccines that afford protection against bluetongue virus, the etiological agent, are not free from secondary and undesirable effects. A surge in new approaches to produce highly attenuated, safer vaccines was evident after the development of the BTV reverse-genetics system that allows the introduction of targeted mutations in the virus genome. We targeted an essential gene to develop disabled virus strains as vaccine candidates. The results presented in this report further substantiate our previous evidence and support the suitability of these virus strains as the next-generation BTV vaccines
The effectiveness of sewage treatment processes to remove faecal pathogens and antibiotic residues
Pathogens and antibiotics enter the aquatic environment via sewage effluents and may pose a health risk to wild life and humans. The aim of this study was to determine the levels of faecal bacteria, and selected antibiotic residues in raw wastewater and treated sewage effluents from three different sewage treatment plants in the Western Cape, South Africa. Sewage treatment plant 1 and 2 use older technologies, while sewage treatment plant 3 has been upgraded and membrane technologies were incorporated in the treatment processes. Coliforms and Escherichia coli (E. coli) were used as bioindicators for faecal bacteria. A chromogenic test was used to screen for coliforms and E. coli. Fluoroquinolones and sulfamethoxazole are commonly used antibiotics and were selected to monitor the efficiency of sewage treatment processes for antibiotic removal. Enzyme Linked Immunosorbent Assays (ELISAs) were used to quantitate antibiotic residues in raw and treated sewage. Raw intake water at all treatment plants contained total coliforms and E. coli. High removal of E. coli by treatment processes was evident for treatment plant 2 and 3 only. Fluoroquinolones and sulfamethoxazole were detected in raw wastewater from all sewage treatment plants. Treatment processes at plant 1 did not reduce the fluoroquinolone concentration in treated sewage effluents. Treatment processes at plant 2 and 3 reduced the fluoroquinolone concentration by 21% and 31%, respectively. Treatment processes at plant 1 did not reduce the sulfamethoxazole concentration in treated sewage effluents. Treatment processes at plant 2 and 3 reduced sulfamethoxazole by 34% and 56%, respectively. This study showed that bacteria and antibiotic residues are still discharged into the environment. Further research needs to be undertaken to improve sewage treatment technologies, thereby producing a better quality treated sewage effluent
Detecção de formas amastigotas em exame parasitológico de esfregaço obtido a partir de suabe conjuntival de cães com leishmaniose visceral
Effect of an intravitreal dexamethasone device on ocular inflammation after phacoemulsification in dogs
Challenges in Colombia for public relations professionals: A qualitative assessment of the economic and political environments
Colombian public relations professionals face an environment shaped by a government-declared war against guerrillas, paramilitaries, and drug traffickers. Practitioners explained the implications of this conflict-laden environment for the practice of public relations during 10 in-depth, highly structured interviews. Findings include how regionalism has marked the evolution and practice in Colombia, the need for organizational representatives to keep a low profile because of security concerns, encroachment on the profession by other disciplines, and lack of trust in institutions due to the country's critical situation, demanding nation-building campaigns. © 2004 Elsevier Inc. All rights reserved
Indoor Air Quality Monitoring Sensor for the Web of Things
Many Internet of Things platforms use dedicated software coupled with proprietary devices and interfaces, creating silo solutions with no interoperability. The Web of Things paradigm promotes using open Web standards to connect physical objects to the Internet through an application layer. In this paper, we propose a low-cost, indoor air quality monitoring sensor implementing a minimal servient building block recommended by the Web of Things Working Group of the World Wide Web Consortium. The proposed sensor runs a Web server on a low-power system-on-chip microcontroller, which provides temperature, relative humidity and carbon dioxide measurements to the Internet through a REST API. Any client on the Internet able to manage the HTTP protocol may access this sensor, making it compatible with any air quality monitoring platform that uses HTTP
Testing Cross-National Conflict Shifting theory: An analysis of Chiquita Brands' transnational crisis in Colombia
This study uses the Cross-National Conflict Shifting theory to analyze Chiquita Brands' transnational crisis originated in Colombia with consequences in the United States. The research includes a content analysis and a case study conducted by U.S. and Colombian scholars. This research contributes to the global public relations' body of knowledge by supporting 9 out of the 10 CNCS theoretical propositions, and further supporting the theory with 3 research questions and 8 hypotheses (2 partially supported, 6 supported). © 2012 Elsevier Inc
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