Sports concussion management using Facebook: A feasibility study of an innovative adjunct "iCon

Context: Sports concussion is currently the focus of much international attention. Innovative methods of facilitating management following this injury need to be investigated to assist athletic trainers. Objective: The objective of this study was to investigate the feasibility of using a Facebook concussion management program termed "iCon" ("interactive concussion management") to facilitate the safe return to play (RTP) of young persons following a sports concussion. Design: This qualitative study was designed as a single-group observational feasibility study using programme evaluation methodology, with the focus on gauging the suitability of the Facebook management strategy for a potential larger study. Setting: iCon involved a Facebook group containing interactive elements, with moderation and support from trained healthcare professionals. Patients or Other Participants: Eleven participants completed the study (n=9 males, n=2 females), and ranged from 18 to 28 years old. Data Collection and Analysis: The study was conducted over a three-month period, with participant questionnaires administered pre- and post-intervention. The primary focus was on the qualitative experiences of the participants in the study, and the effect of iCon on their RTP. Usage data was also collected during the study. Results: At the completion of the study, all participants (100%) stated that they would recommend an intervention such as iCon to others, with their supporting quotes all indicating that iCon has the potential to improve the management of concussion amongst this cohort. The majority of participants (n=9 or 82%) stated they were better informed with regards to their RTP because of participating in iCon. Conclusions: This interactive adjunct to traditional concussion management was appreciated amongst this particular participant group and indicated feasibility for a future, larger study of iCon. Athletic trainers should consider the role that multimedia technologies may play in assisting with the management of sports concussion

Renewable energy scenario and environmental aspects of soil emission measurements

European Commission has set clear targets for 2020 regarding energy and environment policy; these targets include 20% cut in greenhouse gas emissions against the 1990 levels. It is believed that adopted strategy has encouraged the renewable energy applications during the last two decades. Moreover, measurement deviations of carbon dioxide flux occurring in respiration chambers has been seen of a great importance to explain the biochemical parameters affecting the climate change issue. This is attributed on many occasions to chamber design constraints and the way they are coupled with the studied site location. This is illustrated by external disturbances whereby when they happen while gas measurements are taken measurement deviations become more evident. This paper surveys the different soil physical, biological and geotechnical parameters and links them to meteorological ones. Consequently it explores their direct and indirect effects to the produced soil efflux. Furthermore this paper proposes several soil temperature models according to the studied case constraints to see what affects soil efflux production. Moreover a clear understanding of what affects the measurement process was achieved through surveying all the internal and external pressure parameters and how they influence the chamber in relation to time. The conclusion is that respiration chamber designers need to preserve chamber internal temperature and pressure to be equal to the outer atmosphere for the case of stabile external conditions. For the case of unstable external conditions design counter measures are incorporated. Furthermore the appropriate gas sensor needs to be selected professionally with emphasis on the importance of installation location inside the chamber. Likewise soil bacterial type and soil temperature also has an influence on efflux production

Prediction of the gas emission from porous media with the concern of energy and environment

Measuring soil carbon dioxide efflux is a challenging task even when it is performed using respiration chambers. While gas samples are taken, measurement deviations become more evident according to the used chamber design especially when external disturbances occur. This paper studies the carbon dioxide concentration profiles within the top soil layers, and investigates the controlling factors affecting the process. The considered factors are diffusion, temperature and viscosity. The efflux equation is discussed and then it is linked with the soils geotechnical parameters, while a relationship between the Reynolds number within the soil and efflux is found. Emphasis on the importance of the external geometrical design considerations is shown through studying external boundary layer effects due to the chamber outer shell shape and how it interacts with blowing winds. Chamber stability on site of deployment is also of a significant importance considering external blowing winds. Internal geometrical considerations are linked with the flow turbulence within the dynamic chambers. It is highly recommended that respiration chamber designers need to work in parallel with a multidisciplinary team in order to make a chamber design that ensures the least disturbance to occur at the location of study

A numerical and experimental study of a new design of closed dynamic respiration chamber

Carbon dioxide soil efflux modelling in closed dynamic respiration chambers is a challenging task. This is attributed on many occasions to the very small concentrations of carbon dioxide being transported between soil and the atmosphere. This paper describes a portable device which was made exclusively to accurately measure carbon dioxide efflux from soil locations. The blowing fan creates a forced convective flow to occur in the chamber making the K-Epsilon turbulence model a necessity to model the occurring flow in the respiration chamber gas domain. Furthermore the Darcy model is applied on the porous domain to model the flow pattern within the soil. The measurement process was achieved through measuring carbon dioxide concentration, temperature and relative humidity inside the chamber in relation to time. Simulation and experimental data is obtained using ANSYS and MATLAB. A significant agreement between the experimental and numerical results was achieved

Developments in fuel cell technologies in the transport sector

The demand for clean power source which can be used to run the various types of vehicles on the road is increasing on a daily basis due to the fact that high emissions released from internal combustion engine play a significant role in air pollution and climate change. Fuel cell devices, particularly Proton Exchange Membrane (PEM) type, are strong candidates to replace the internal combustion engines in the transport industry. The PEMFC technology still has many challenges including high cost, low durability and hydrogen storage problems which limit the wide-world commercialization of this technology. In this paper, the fuel cell cost, durability and performances challenges which are associated with using of fuel cell technology for transport applications are detailed and reviewed. Recent developments that deal with the proposed challenges are reported. Furthermore, problems of hydrogen infrastructure and hydrogen storage in the fuel cell vehicle are discussed

Determinants of voluntary blood donation among adults in communities of north central region of Nigeria

Objective: The collection of blood from voluntary, non-remunerated blood donors is an important measure for ensuring the safety, quality, availability and accessibility of blood. The study assessed factors affecting voluntary blood donation in North-central zone, Nigeria.Methods: The study design was descriptive cross-sectional, data was collected using a pre-tested interviewer administered questionnaire from 3104 respondents using multistage sampling technique. Data was analyzed using EPI INFO computer software package (version 3.5.3). Level of significance was pre-determined at p-value < 0.05 at a confidence level of 95%.Results: Respondents with good knowledge of voluntary blood donation had better practice of voluntary blood donation. Younger age groups were 8 times more likely to donate blood voluntarily than older respondents. Yoruba ethnic groups are 1.5 times more likely to donate blood than other ethnic groups.Conclusion: For Nigeria and other developing countries at large to achieve 100% voluntary blood donation drive by year 2020, it is critical to change the blood donation culture from replacement to that of volunteerism through more effective communication and mobilization of donors. These efforts must be rendered more methodical and accomplished through a wider range of strategies.Keywords: Determinants, voluntary, blood, donation, Nigeri

Fuzzy modeling and parameters optimization for the enhancement of biodiesel production from waste frying oil over montmorillonite clay K-30

Transesterification is a promising technology for the biodiesel production to provide an alternative fuel that considers the environmental concerns. From the economic and environmental protection points of view, utilization of waste frying oil for the production of biodiesel addresses very beneficial impacts. Production of higher yield of biodiesel is a challenging process in order to commercialize it with a lower cost. The current study focuses on the influence of different parameters such as reaction temperature (°C), reaction period (min), oil to methanol ratio and amount of catalyst (wt%) on the production of biodiesel. The main objective of this work is to develop a model via fuzzy logic approach in order to maximize the biodiesel produced from waste frying oil using montmorillonite Clay K-30 as a catalyst. The optimization for the operating parameters has been performed via particle swarm optimization (PSO) approach. During the optimization process, the decision variables were represented by four different operating parameters: temperature (40–140 °C), reaction period (60–300 min), oil/methanol ratio (1:6–1:18) and amount of catalyst (1–5 wt%). The model has been validated with the experimental data and compared with the optimal results reported based on other optimization techniques. Results showed the increment of biodiesel production by 15% using the proposed strategy compared to the earlier study. The obtained biodiesel production yield reached 93.70% with the optimal parameters for a temperature at 69.66 °C, a reaction period of 300 min, oil/methanol ratio of 1:9 and an amount of catalyst of 5 wt%

Aston University's Antimicrobial Resistance (AMR) Roadshow: raising awareness and embedding knowledge of AMR in key stage 4 learners:raising awareness and embedding knowledge of AMR in key stage 4 learners

Antimicrobial resistance (AMR) is a global healthcare problem and therefore raising awareness within young learners is imperative. An AMR roadshow was designed to take key stage 4 students' learning ‘out of the classroom’, assess pre-existing knowledge of AMR and determine the impact of the roadshow on knowledge retention. Knowledge and subsequent retention were measured pre- and post-event through a standardised questionnaire. The roadshow significantly improved knowledge and understanding of AMR, which was retained for a minimum of twelve weeks. Engaging and interactive strategies addressing key health issues provide a positive learning experience which contributes to retained knowledge in young learners

Association of Eumycetoma and Schistosomiasis

Eumycetoma is a morbid chronic granulomatous subcutaneous fungal disease. Despite high environmental exposure to this fungus in certain regions of the world, only few develop eumycetoma for yet unknown reasons. Animal studie