University of Nicosia

About: University of Nicosia is a education organization based out in Nicosia, Cyprus. It is known for research contribution in the topics: Population & Context (language use). The organization has 988 authors who have published 2765 publications receiving 30748 citations.

Efficient Media Streaming with Collaborative Terminals for the Smart City Environment

Abstract: Among multiple services delivered over future mobile networks, the most demanding (from the required bandwidth point of view) are related to media streaming, which is a key component in smart applications (entertainment, tourism, surveillance, etc.). Such applications have to exploit a considerable amount of data, which is difficult to achieve especially in dense urban environments. In this context, the article presents a new solution for HTTP-compliant adaptive media streaming applicable to future 5G mobile networks, aimed at increasing bandwidth availability through the use of multiple radio access technologies and direct connections between devices if they are in proximity of each other. The proposed solution considers a scenario in which a high-quality media stream is received by multipath transmission through the radio access network. Collaboration of neighboring devices is exploited by using direct device-to-device links. Thus, proxy nodes can be inserted between a given media receiver and an access network. Toward ensuring optimized resource allocation at both levels, base station-to-device and device-to-device, this article introduces the architectural modules required for collaboration streaming inside the radio access network and end user’s device, and proposes enhancements in HTTP-compliant adaptive streaming protocols in order to become suitable for a multipath collaborative scenario.

Fogify: A Fog Computing Emulation Framework

Abstract: Fog Computing is emerging as the dominating paradigm bridging the compute and connectivity gap between sensing devices and latency-sensitive services. However, experimenting and evaluating IoT services is a daunting task involving the manual configuration and deployment of a mixture of geodistributed physical and virtual infrastructure with different resource and network requirements. This results in sub-optimal, costly and error-prone deployments due to numerous unexpected overheads not initially envisioned in the design phase and underwhelming testing conditions not resembling the end environment. In this paper, we introduce Fogify, an emulator easing the modeling, deployment and large-scale experimentation of fog and edge testbeds. Fogify provides a toolset to: (i) model complex fog topologies comprised of heterogeneous resources, network capabilities and QoS criteria; (ii) deploy the modelled configuration and services using popular containerized descriptions to a cloud or local environment; (iii) experiment, measure and evaluate the deployment by injecting faults and adapting the configuration at runtime to test different “what-if” scenarios that reveal the limitations of a service before introduced to the public. In the evaluation, proof-of-concept IoT services with real-world workloads are introduced to show the wide applicability and benefits of rapid prototyping via Fogify.

Attitudes of Lebanese adults regarding COVID-19 vaccination.

Abstract: COVID-19 was first detected in Lebanon on February 21, 2020; it reached its peak in January 2021, with a total number of 418,448 confirmed cases and 5380 deaths (until March 15, 2021). Gaining insight into factors regarding willingness or refusal for vaccination might guide our goals in raising the awareness and target efforts to increase acceptance of the COVID-19 vaccine and maximize the uptake. Therefore, this study aims to assess the intent to receive the COVID-19 vaccine among Lebanese adults and the factors associated with vaccine refusal. We conducted a cross-sectional study during November–December 2020 among Lebanese adults from all Lebanese regions using a survey tool with closed-ended questions that included sociodemographic data and questions about vaccine hesitancy, knowledge, attitude, practice, and fear of COVID-19. We used the snowball technique to collect the data because of the COVID-19 imposed lockdown. Of the 579 participants, 21.4% were willing to receive the vaccine, 40.9% refused, and the remainder were unsure of their response. More vaccine hesitancy (adjusted odds ratio (aOR) = 1.06; 95% CI 1.03–1.09) was significantly associated with more odds of disagreeing/ strongly disagreeing on receiving the COVID-19 vaccine compared to being neutral. More vaccine hesitancy (aOR = 0.95; 95% CI 0.91–0.99), female gender compared to males (aOR = 0.53; 95% CI 0.32–0.87), and being married compared to single (aOR = 0.53; 95% CI 0.29–0.98) were significantly associated with lower odds of agreeing/strongly agreeing on receiving the COVID-19 vaccine compared to being neutral. Overall, our findings revealed a high percentage of people (40%) who strongly disagreed with receiving the vaccine, mainly females, married participants, and those who have a general vaccine hesitancy. Moreover, no significant association was found with knowledge, attitude, or prevention practice regarding COVID-19. Targeted efforts are necessary to increase acceptance of a COVID-19 vaccine among the Lebanese population to control the COVID-19 pandemic. Further studies with a larger sample size are warranted to validate our results and provide better insights into the underlying reasons for refusing vaccination.

Prevention and Management of Complications in Laparoscopic Myomectomy

Abstract: Myomectomy aims to preserve fertility, treat abnormal uterine bleeding, and alleviate pain. It should cause minimal damage to the endometrium, while being tolerable and durable, and reduce the incidence of myoma recurrence and complications including bleeding, hematoma, adhesions, and gravid uterus perforation. Training and experience are crucial to reduce complications. The surgical strategy depends on imaging information on the myomas. The position of the optical and secondary ports will determine the degree of ergonomic surgery performance, time and difficulty of myoma enucleation, and the suturing quality. Appropriate hysterotomy length relative to myoma size can decrease bleeding, coagulation, and suturing times. Bipolar coagulation of large vessels, while avoiding carbonization and myometrium gaps after suturing, may decrease the risk of myometrial hematoma. Quality surgery and the use of antiadhesive barriers may reduce the risk of postoperative adhesions. Slow rotation of the beveled morcellator and good control of the bag could reduce de novo myoma and endometriosis. Low intra-abdominal CO2 pressure may reduce the risk of benign and malignant cell dissemination. The benefits a patient gains from laparoscopic myomectomy are greater than the complication risks of laparoscopic morcellation. Recent publications on laparoscopic myomectomies demonstrate reduced hospitalization stays, postoperative pain, blood loss, and recovery compared to open surgery.

Branding and the Cyprus wine industry

Abstract: A traditional industry confronting market change is examined here, for the wine industry is important to the economy of Cyprus. Cyprus had to reinvent itself as a wine producer after receiving a double blow: losing its main product, sherry, as a result of nomenclature protection by the European Union and the loss of its largest market after the fall of communism. The objective here is to examine the product (wine) and how it may be improved and upgraded for a more sophisticated market. Product quality and branding then immediately rise to the fore but to ensure that all the issues are being properly addressed, soundings were taken from local, Greek and international wine professionals as well as local consumers. There are 52 wineries in Cyprus but the industry is controlled by four main companies and tied mainly to a local grape variety, Mavro. The grapes are grown by people independent of the wineries and this has been a long-standing issue—affecting wine quality—as has the distance between where the grapes are grown and the wineries themselves. The methodology involved focus groups, depth interviews and an e-mail survey. Respondents were local consumers and wine experts who fell into three groups: local Cypriot, Greek and International. The findings reveal an industry that is still growing, but fragmented and dominated by the big four Cyprus wineries—KEO, ETKO, SODAP and LOEL, formulating the Cyprus Wine Producers’ Association (ΣOK—Συ´νδɛσμος Oινοπαραγωγω´ν Kυπρου), that possess 75.5 per cent of the market. Way below is the market share of imported wines (16 per cent) and small local wineries (8.5 per cent) that fall under the umbrella of the Bacchus Association (Bacchus is equated with Dionysus, the god of wine in Greek mythology). There is also great secrecy and unwillingness on behalf of local wineries to work together, which serves to perpetuate existing weaknesses and work against attempts to develop branding associations. The inescapable conclusion is that necessary change will require the adoption of branding that in turn will require greater investment in the product and then its promotion and labelling.