scholarly journals Influence of Potable Water Origin on the Physicochemical and Antimicrobial Properties of Plasma Activated Water

2021 ◽  
Author(s):  
Stephane Simon ◽  
Breno Salgado ◽  
Mohammad I. Hasan ◽  
Morten Sivertsvik ◽  
Estefania Noriega Fernández ◽  
...  
Keyword(s):  
Water Samples ◽  
Potable Water ◽  
Antimicrobial Properties ◽  
Air Plasma ◽  
Plasma Exposure ◽  
Log Reduction ◽  
Plasma Activation ◽  
Water Origin ◽  
The Uk ◽  
The Impact

AbstractThe interaction between a cold gas plasma and water creates a plasma activated liquid, a solution rich in highly reactive chemical species. Such liquids have garnered considerable attention due to their powerful antimicrobial properties and ease of production. In this contribution, air plasma was used to activate potable water samples from five different countries, including the UK, France, Norway, Slovenia and Palestine. All water samples had an initial pH in the range of 7.9 to 8.2, following plasma activation samples from the UK and Norway reached a pH below 3, whereas water from France and Palestine remained stable at 8. The concentration of NO3− increased in all samples, reaching a maximum concentration of 3 mM after 25 min plasma exposure; whereas the concentration of NO2− showed a non-linear dependence with exposure time, reaching between 10 and 25 µM after 25 min of exposure. To demonstrate the impact of water origin on the antimicrobial potential of each solution, the inactivation of Staphylococcus aureus and Escherichia coli was considered. It was found that activated water from the UK was capable of achieving > 6 log reduction, whereas water from Palestine was only able to achieve a 0.4 log reduction, despite both liquids receiving an identical plasma exposure. The study demonstrates the importance of initial water composition on the level of plasma activation, indicating that additional purification steps prior to activation may be necessary to ensure efficacy and repeatability.

The Film World’s Cooperative Store: Institutions and Films of the 1930s and 1940s

2018 ◽  
Author(s):  
C. Claire Thomson
Keyword(s):  
World War Ii ◽  
Meat Products ◽  
Public Information ◽  
Early History ◽  
World War ◽  
International Context ◽  
German Occupation ◽  
History Of ◽  
The Uk ◽  
The Impact

This chapter traces the early history of state-sponsored informational filmmaking in Denmark, emphasising its organisation as a ‘cooperative’ of organisations and government agencies. After an account of the establishment and early development of the agency Dansk Kulturfilm in the 1930s, the chapter considers two of its earliest productions, both process films documenting the manufacture of bricks and meat products. The broader context of documentary in Denmark is fleshed out with an account of the production and reception of Poul Henningsen’s seminal film Danmark (1935), and the international context is accounted for with an overview of the development of state-supported filmmaking in the UK, Italy and Germany. Developments in the funding and output of Dansk Kulturfilm up to World War II are outlined, followed by an account of the impact of the German Occupation of Denmark on domestic informational film. The establishment of the Danish Government Film Committee or Ministeriernes Filmudvalg kick-started aprofessionalisation of state-sponsored filmmaking, and two wartime public information films are briefly analysed as examples of its early output. The chapter concludes with an account of the relations between the Danish Resistance and an emerging generation of documentarists.

Exploring the Benefits of Early Contractor Involvement (ECI) and the Mechanism for Automated 5D BIM Quantification Process in Offsite Modular Construction

2016 ◽  
Author(s):  
Tochukwu Moses ◽  
David Heesom ◽  
David Oloke ◽  
Martin Crouch
Keyword(s):  
Effective Means ◽  
Cost Effective ◽  
Modular Construction ◽  
Automated Quantification ◽  
Building Information ◽  
Project Risks ◽  
Value Add ◽  
The Uk ◽  
The Impact ◽  
Level 2

The UK Construction Industry through its Government Construction Strategy has recently been mandated to implement Level 2 Building Information Modelling (BIM) on public sector projects. This move, along with other initiatives is key to driving a requirement for 25% cost reduction (establishing the most cost-effective means) on. Other key deliverables within the strategy include reduction in overall project time, early contractor involvement, improved sustainability and enhanced product quality. Collaboration and integrated project delivery is central to the level 2 implementation strategy yet the key protocols or standards relative to cost within BIM processes is not well defined. As offsite construction becomes more prolific within the UK construction sector, this construction approach coupled with BIM, particularly 5D automated quantification process, and early contractor involvement provides significant opportunities for the sector to meet government targets. Early contractor involvement is supported by both the industry and the successive Governments as a credible means to avoid and manage project risks, encourage innovation and value add, making cost and project time predictable, and improving outcomes. The contractor is seen as an expert in construction and could be counter intuitive to exclude such valuable expertise from the pre-construction phase especially with the BIM intent of äóÖbuild it twiceäó», once virtually and once physically. In particular when offsite construction is used, the contractoräó»s construction expertise should be leveraged for the virtual build in BIM-designed projects to ensure a fully streamlined process. Building in a layer of automated costing through 5D BIM will bring about a more robust method of quantification and can help to deliver the 25% reduction in overall cost of a project. Using a literature review and a case study, this paper will look into the benefits of Early Contractor Involvement (ECI) and the impact of 5D BIM on the offsite construction process.

Report1: Impact of Covid-19 on young people aged 13-24 in the UK- preliminary findings

2020 ◽  
Author(s):  
Liat Levita ◽  
Jilly Gibson Miller ◽  
Todd K. Hartman ◽  
Jamie Murphy ◽  
Mark Shevlin ◽  
...  
Keyword(s):  
Mental Health ◽  
Young People ◽  
Emotional Regulation ◽  
Health Anxiety ◽  
Self Control ◽  
Social Risk ◽  
Need For Support ◽  
The Uk ◽  
Social Recovery ◽  
The Impact

COVID-19 has led to an unprecedented disruption of normal social relationships and activities, which are so important during the teen years and young adulthood, and to education and economic activity worldwide. The impact of this on young people’s mental health and future prospects may affect their need for support and services, and the speed of the nation’s social recovery afterwards. This study focused on the unique challenges facing young people at different points during adolescent development, which spans from the onset of puberty until the mid-twenties. Although this is an immensely challenging time and there is a potential risk for long term trauma, adolescence can be a period of opportunity, where the teenagers’ brain enjoys greater capacity for change. Hence, the focus on young people is key for designing age-specific interventions and public policies, which can offer new strategies for instilling resilience, emotional regulation, and self-control. In fact, adolescents might be assisted to not only cope, but excel, in spite of the challenges imposed by this pandemic. Our work will feed into the larger societal response that utilizes the discoveries about adolescence in the way we raise, teach, and treat young people during this time of crisis. Wave 1 data has already been collected from 2,002 young people aged 13-24, measuring their mental health (anxiety, depression, trauma), family functioning, social networks, and resilience, and social risk-taking at the time of the pandemic. Here we present a preliminary report of our findings, (Report 1). Data collected 21/4/20- 29/4/20 - a month after the lockdown started).

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