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Articles 8701 - 8730 of 20076
Full-Text Articles in Entire DC Network
High Sensitivity Fiber Refractometer Based On An Optical Microfiber Coupler, Lin Bo, Pengfei Wang, Yuliya Semenova, Gerald Farrell
High Sensitivity Fiber Refractometer Based On An Optical Microfiber Coupler, Lin Bo, Pengfei Wang, Yuliya Semenova, Gerald Farrell
Articles
An optical microfiber coupler-based refractive index sensor is proposed and experimentally demonstrated in this letter. A microfiber coupler with a minimum diameter of 2.5 µm and a uniform waist with a length of 2 mm is fabricated and used for sensing surrounding refractive index. Both theoretical and experimental results have shown that the spectral response of the proposed microfiber coupler is highly sensitive to the surrounding refractive index over the range from 1.3340 to 1.3800. An average sensitivity of 2723 nm/RIU over this entire refractive index range has been achieved experimentally. Furthermore, for the refractive index range from 1.3340 to …
The Influence Of Light Beam Convergence On The Stop-Bands Of A One-Dimensional Photonic Crystal, Vladimir A. Tolmachev, Kevin Berwick, Tatiana S. Perova
The Influence Of Light Beam Convergence On The Stop-Bands Of A One-Dimensional Photonic Crystal, Vladimir A. Tolmachev, Kevin Berwick, Tatiana S. Perova
Articles
The influence of beam convergence on the photonic band-gaps, or stop-bands (SBs), of onedimensional photonic crystals (1D PCs) is investigated. The investigation is based on an analysis of the gap map obtained from reflection spectra, calculated by the transfer matrix method for various angles of light incidence, φ, The calculated data is compared with reflection spectra taken using Fourier Transform Infrared microspectroscopy. It was found that the introduction of the parameter, Δφ to account for the focused light beam, for angles up to 20°, has little effect on the first, or lowest SB and the SBs adjacent to it. However, …
Reversible Photoluminescence Quenchin Of Cdse/Zns Quantum Dots Embedded In Porous Glass By Ammonia Vapor, A. O. Orlova, Yu A. Gromova, V. G. Maslov, O. V. Andreeva, A. V. Baranov, A. V. Federov, A. V. Prudnikau, M. V. Artemyev, Kevin Berwick
Reversible Photoluminescence Quenchin Of Cdse/Zns Quantum Dots Embedded In Porous Glass By Ammonia Vapor, A. O. Orlova, Yu A. Gromova, V. G. Maslov, O. V. Andreeva, A. V. Baranov, A. V. Federov, A. V. Prudnikau, M. V. Artemyev, Kevin Berwick
Articles
The photoluminescence response of semiconductor CdSe/ZnS quantum dots embedded in a borosilicate porous glass matrix to exposure to ammonia vapor is investigated. Formation of surface complexes on the quantum dots results in quenching of the photoluminescence and a shortening of the luminescence decay time. The process is reversible, desorption of ammonia molecules from the quantum dot surface causes the photoluminescence to recover. The sensitivity of the quantum dot luminescence intensity and decay time to the interaction time and the reversibility of the photoluminescence changes makes the CdSe/ZnS quantum dot in porous glass system a candidate for use as an optical …
Hybrid Plasmonic Biosensor For Simultaneous Measurement Of Both Thickness And Refractive Index, Youqiao Ma, Gerald Farrell, Yuliya Semenova, Hau Ping Chan, Qiang Wu
Hybrid Plasmonic Biosensor For Simultaneous Measurement Of Both Thickness And Refractive Index, Youqiao Ma, Gerald Farrell, Yuliya Semenova, Hau Ping Chan, Qiang Wu
Articles
A novel hybrid plasmonic biosensor using a sub-wavelength reflection metal grating is proposed and analyzed. The simulation results show that the hybrid plasmonic-cavity (HPCM) are wavelength dependent on both the refractive index (RI) and thickness of the surrounding analyte layer, with a sensitivity of 448 nm/RIU (refractive index unit) and 75 nm/um, respectively. However wavelength related to the cavity resonant mode (CRM) related is only sensitive to the environmental refractive index changes. In principle it is possible to determine both RI and thickness of the coating layer simultaneously.
Evaluation Of Proximity Heating Effects In Power Cables, Jonathan Blackledge, Eugene Coyle, Kevin O'Connell
Evaluation Of Proximity Heating Effects In Power Cables, Jonathan Blackledge, Eugene Coyle, Kevin O'Connell
Articles
No abstract provided.
On The Dirac Scattering Problem, Jonathan Blackledge, Bazar Babajanov
On The Dirac Scattering Problem, Jonathan Blackledge, Bazar Babajanov
Articles
We consider a method of solving the Dirac scattering problem based on an approach previously used by the authors to solve the Schrodinger scattering problem to develop a conditional exact scattering solution and an unconditional series solution. We transform the Dirac scattering problem into a form that facilitates a soltuion based on the relativistic Lippmann-Schwinger equation using the relativistic Green's function that is transcendental in terms of the scattered field. Using the Dirac operator, this solution is transformed further to yield a modified relativistic Lippman-Schwinger equation that is also transcendental in terms of the scattered field. This modified solution faclitates …
Who Cares?:Practical Ethics And The Problem Of Underage Users On Social Networking Sites, Brian O'Neill
Who Cares?:Practical Ethics And The Problem Of Underage Users On Social Networking Sites, Brian O'Neill
Articles
Internet companies place a high priority on the safety of their services and on their corporate responsibility towards protection of all users, especially younger ones. However, such efforts are undermined by the large numbers of children who circumvent age restrictions and lie about their age to gain access to such platforms. This paper deals with the ethical issues that arise in this not-so-hypothetical situation. Who, for instance, bears responsibility for children’s welfare in this context? Are parents/carers ethically culpable in failing to be sufficiently vigilant or even facilitating their children’s social media use? Do industry providers do enough to enforce …
Re-Theorizing The “Structure–Agency” Relationship: Figurational Theory, Organizational Change And The Gaelic Athletic Association, John Connolly, Paddy Dolan
Re-Theorizing The “Structure–Agency” Relationship: Figurational Theory, Organizational Change And The Gaelic Athletic Association, John Connolly, Paddy Dolan
Articles
This article illustrates how the figurational sociology associated with Norbert Elias provides an alternative theoretical framework for explaining the relationship between, ‘individualorganization- society’ and organizational change, and in so doing transverses what is conceived as a false dichotomy between structure and agency. Through an historical case study of the Gaelic Athletic Association in Ireland, the ‘individual-organization-society’ relationship is conceptualized as overlapping figurations and organizational change is explained as figurational dynamics—the shifting social interdependencies between the individuals and groups comprising an organization, between that organization and other organizations, between social groups on a higher level of integration and competition. In tandem …
Emotions, Violence And Social Belonging: An Eliasian Analysis Of Sports Spectatorship, Paddy Dolan, John Connolly
Emotions, Violence And Social Belonging: An Eliasian Analysis Of Sports Spectatorship, Paddy Dolan, John Connolly
Articles
This paper examines the development of different forms of spectator violence in terms of the socio-temporal structure of situational dynamics at Gaelic football matches in Ireland. The nature of violent encounters has shifted from a collective form based on local solidarity and a reciprocal code of honour, through a transitional collective form based on deferred emotional satisfaction and group pride, towards increasing individualization of spectator violence. This occurs due to the shifting objects of emotional involvement. As the functional specialization of the various roles in the game is partially accepted by spectators, the referee becomes the target of anger. Violence …
Technology Readiness In A B2b Online Retail Context: An Examination Of Antecedents And Outcomes, Roisin Vize, Joseph Coughlan, Aileen Kennedy, Fiona Ellis-Chadwick
Technology Readiness In A B2b Online Retail Context: An Examination Of Antecedents And Outcomes, Roisin Vize, Joseph Coughlan, Aileen Kennedy, Fiona Ellis-Chadwick
Articles
This paper develops and empirically tests a model that examines the role of Technology Readiness (TR) in the Business-to-Business (B2B) context. It examines how the antecedents of TR affect the construct, and how the construct affects evaluations of a complex credence based B2B service. The research investigates how the retailers’ TR impacts their evaluation of web solution service providers (WSSPs). It responds to previous research calls by extending the TR construct from the business-to-consumer (B2C) perspective that is traditional in the extant literature into the B2B domain. The key findings of a survey conducted with 133 firms in the retail …
Regional Integration Of Renewable Energy Systems In Ireland: The Role Of Hybrid Energy Systems For Small Communities, Craig Goodbody, Eileen Walsh, Kevin Mcdonnell, Philip Owende
Regional Integration Of Renewable Energy Systems In Ireland: The Role Of Hybrid Energy Systems For Small Communities, Craig Goodbody, Eileen Walsh, Kevin Mcdonnell, Philip Owende
Articles
Due to a lack of indigenous fossil energy resources, Ireland’s energy supply constantly teeters on the brink of political, geopolitical, and geographical unease. The potential risk to the security of the energy supply combined with the contribution of anthropogenic greenhouse gas emissions to climate change gives a clear indication of Ireland's need to reduce dependency on imported fossil fuels as primary energy source. A feasibility analysis to investigate the available renewable energy options was conducted using HOMER software. The Net Present Cost, the Cost of Energy, and the CO2 emissions of each potential energy combination were considered in determining the …
Relationship Between Fear Of Falling And Mobility Varies With Visual Function Among Older Adults, Orna Donoghue, Harriet Ryan, Eoin Duggan, Ciaran Finucane, George Sava, Hilary Cronin, James Loughman, Rose Anne Kenny
Relationship Between Fear Of Falling And Mobility Varies With Visual Function Among Older Adults, Orna Donoghue, Harriet Ryan, Eoin Duggan, Ciaran Finucane, George Sava, Hilary Cronin, James Loughman, Rose Anne Kenny
Articles
Aim: The present study examined the association between vision, fear of falling and fear-related activity restriction, and assessed the effect of vision on the relationship between fear of falling and mobility, using data from a nationally representative sample of community-dwelling adults aged ≥50 years. Methods: Participants (n = 5003) completed an interview and health assessment (including Timed Up-and-Go, vision and cognitive tests). Visual acuity and contrast sensitivity were assessed using an Early Treatment Diabetic Retinopathy Study logMAR chart and Functional Vision Analyzer, respectively. Participants self-reported their vision as excellent, very good, good, fair or poor. They were assigned to no …
Impact Of Computer Experience On The Viability And Repeatablity Of The Moorfields Motion Displacement Test In A Developing And Underserved African Setting, James Loughman, Carmen Gonzalez Alvarez, Gay Mary Verdon-Roe, Roger Anderson, Ramos Antonio Manuel, Kovin Naidoo
Impact Of Computer Experience On The Viability And Repeatablity Of The Moorfields Motion Displacement Test In A Developing And Underserved African Setting, James Loughman, Carmen Gonzalez Alvarez, Gay Mary Verdon-Roe, Roger Anderson, Ramos Antonio Manuel, Kovin Naidoo
Articles
Background: The current study was designed to explore the effect of computer experience on the viability and testretest repeatability of the Moorfields Motion Displacement Test (MMDT), a novel computer-driven glaucoma screening device, in an African community setting. Methods: 164 healthy subjects were recruited from a semi-rural Mozambican environment, and stratified according to computer experience (computer naïve: n=85, computer familiar: n=79). A suprathreshold screening test algorithm was employed, and the global probability of true damage (GPTD), testing time (TT) and false positive (FP) response rate were recorded. The visual field test was conducted twice on the same eye, and results compared …
Suitability And Repeatability Of A Photostress Recovery Test Device, The Macular Degeneration Detector (Mdd-2), For Diabetes And Diabetic Retinopathy Assessment, James Loughman, Matthew Ratzlaff, Brittany Foerg, Paul Connell
Suitability And Repeatability Of A Photostress Recovery Test Device, The Macular Degeneration Detector (Mdd-2), For Diabetes And Diabetic Retinopathy Assessment, James Loughman, Matthew Ratzlaff, Brittany Foerg, Paul Connell
Articles
Background: Diabetic retinopathy can result in impaired photostress recovery time despite normal visual acuity and fundoscopic appearance. The Macular Degeneration Detector (MDD-2) is a novel flash photostress recovery time device. In this study, we examine the repeatability of the MDD-2 in normal and diabetic subjects. Methods: One hundred and ninety one (90 women, 101 men) subjects were recruited and divided into 1 of the 3 study groups (normal controls, n = 40; diabetes no retinopathy, n = 98; nonproliferative diabetic retinopathy, n = 53). Photostress recovery time was measured three times in the study eye using the MDD-2, each measurement …
Generation Of Intracellular Reactive Oxygen Species And Genotoxicity Effect To Exposure Of Nanosized Polyamidoamine (Pamam) Dendrimers In Plhc-1 Cells In Vitro, Hugh Byrne, Pratap Naha
Generation Of Intracellular Reactive Oxygen Species And Genotoxicity Effect To Exposure Of Nanosized Polyamidoamine (Pamam) Dendrimers In Plhc-1 Cells In Vitro, Hugh Byrne, Pratap Naha
Articles
Polyamidoamine (PAMAM) dendrimers elicit systematically variable cyto- and eco-toxic responses, promising the basis for structure activity relationships governing nanotoxicological responses. Increased production of intracellular reactive oxygen species (ROS), genotoxicity and apoptosis due to in-vitro exposure of hepatocellular carcinoma cells to dendrimer generations G-4, G-5 and G-6 is demonstrated. A generation dependent increase in ROS and genotoxicity was observed, consistent with our previous studies. The responses correlate well with the number of surface amino groups per generation. Although ROS production initially increases approximately linearly, it saturates at higher doses. Notably, normalised to molar dose of surface amino groups, the dose-dependent ROS …
Decomposition Of Ireland’S Carbon Emissions From 1990-2010: An Extended Kaya Identity, Tadhg O'Mahony
Decomposition Of Ireland’S Carbon Emissions From 1990-2010: An Extended Kaya Identity, Tadhg O'Mahony
Articles
In recent decades, Ireland has been an important example of a development pathway where rapid economic growth was accompanied by rising energy demand and increasing carbon emissions. Understanding the driving forces of carbon emissions is necessary for policy formulation and decomposition analysis is widely used for this purpose. This study uses an extended Kaya identity as the scheme and applies the log mean Divisia index (LMDI I) as the decomposition technique. Change in carbon emissions is decomposed from 1990 – 2010 and includes a measure of the effect of renewable energy penetration. Results illustrate that scale effects of affluence and …
Degradation Kinetic Modelling Of Colour, Texture, Polyphenols And Antioxidant Capacity Of York Cabbage After Microwave Processing, Amit Jaiswal, Nissreen Abu-Ghannam
Degradation Kinetic Modelling Of Colour, Texture, Polyphenols And Antioxidant Capacity Of York Cabbage After Microwave Processing, Amit Jaiswal, Nissreen Abu-Ghannam
Articles
Vegetables as an essential component of the human diet usually undergo some type of processing before being consumed. In the present study, impact of microwave (MW) processing on various physiochemical properties of York cabbage was studied. York cabbage was processed at 400, 560 and 800W for 0 to 14 min with an increment of 2 min followed by a kinetic study for the degradation of polyphenols, flavonoids, antioxidant capacity, colour and texture were carried out. Results showed that MW processing leads to significant reductions in the texture, colour, polyphenols and antioxidant capacity. For all the MW processing power studied total …
Optimization Of Fermentation Conditions For The Utilization Of Brewing Waste To Develop A Nutraceutical Rich Liquid Product, Shilpi Gupta, Amit Jaiswal, Nissreen Abu-Ghannam
Optimization Of Fermentation Conditions For The Utilization Of Brewing Waste To Develop A Nutraceutical Rich Liquid Product, Shilpi Gupta, Amit Jaiswal, Nissreen Abu-Ghannam
Articles
Utilization of brewers’ spent grain (BSG), for the development of a fermented liquid product rich in value-added phenolic compounds was investigated. Changes in and liberation of phenolic compounds and antioxidant activity during fermentation of BSG was studied. The effect of various particle size (PS), solid liquid (SL) ratio, fermentation time and rotation speed was optimized using response surface methodology (RSM) for the purpose of improving bacterial growth and the enhancement in the release of polyphenolic compounds. Contour maps generated using the response surface equation showed that the experimental variables significantly affected the response. A production of 10.4 log cfu/ml, 2.95 …
Ultrasound For Improved Crystallisation In Food Processing, N. Misra, Navneet Deora, Brijesh Tiwari, Patrick J. Cullen
Ultrasound For Improved Crystallisation In Food Processing, N. Misra, Navneet Deora, Brijesh Tiwari, Patrick J. Cullen
Articles
Within the food industry, controlling crystallisation is a key factor governing food structure, texture and consumer appeal, with some foods requiring the promotion of crystallisation in a controlled manner (e.g. chocolate) and others a check (e.g. in honey). Sonocrystallisation is the application of ultrasound energy to control the nucleation of a crystallisation process. The use of power ultrasound provides a non-invasive approach to producing crystals with desired properties. Sonocrystallisation facilitates process control, primarily by modulating crystal size distribution and morphology. This paper details the governing mechanisms of sonocrystallisation. Proven and potential applications of the process in foods, including chocolates, honey, …
Comparison Between Gelatines Extracted From Mackerel And Blue Whiting Bones After Different Pre-Treatments, Catherine Barry-Ryan, Zied Khiari, Daniel Rico, Ana Belen Martin-Diana
Comparison Between Gelatines Extracted From Mackerel And Blue Whiting Bones After Different Pre-Treatments, Catherine Barry-Ryan, Zied Khiari, Daniel Rico, Ana Belen Martin-Diana
Articles
Gelatines were extracted from mackerel and blue whiting bones after chemical or enzymatic pre-treatments and their functional properties (solubility, foaming and emulsifying properties) were analysed. The pre-treatment significantly (p
Antioxidant Capacity, Arabinoxylans Content And In Vitro Glycaemic Index Of Cereal-Based Snacks Incorporated With Brewer’S Spent Grain, Sofia Reis, Nissreen Abu-Ghannam
Antioxidant Capacity, Arabinoxylans Content And In Vitro Glycaemic Index Of Cereal-Based Snacks Incorporated With Brewer’S Spent Grain, Sofia Reis, Nissreen Abu-Ghannam
Articles
Extruded snacks and breadsticks were formulated with increasing levels of brewer’s spent grain (BSG). The phenolic content increased by 4 and 7 fold with BSG addition in extrudates (40g/100g) and in breadsticks (35g/100g), respectively. Consequently, antioxidant capacity (DPPH, FRAP) also increased despite a recorded loss of phenolic compounds in extruded snacks. Arabinoxylans content increased up to 20 and 25g of BSG addition /100g of formulated extruded snacks and breadsticks, respectively. Further addition of BSG did not improve the content of arabinoxylans due to the possible formation of polysaccharide-protein complexes. Medium GI breadsticks were obtained with 35g of BSG incorporation /100g …
Effect Of Delactosed Whey Permeat Treatment On Physiochemical, Sensorial, Nutritional And Microbial Properties Of Whole Tomatoes During Postharvest Storage., Lubna Ahmed, Ana Belen Martin-Diana, Daniel Rico, Catherine Barry-Ryan
Effect Of Delactosed Whey Permeat Treatment On Physiochemical, Sensorial, Nutritional And Microbial Properties Of Whole Tomatoes During Postharvest Storage., Lubna Ahmed, Ana Belen Martin-Diana, Daniel Rico, Catherine Barry-Ryan
Articles
The objective of this study was to investigate the efficacy of delactosed whey permeate (DWP) treatment on the physico-chemical, microbial and antioxidant compounds of tomatoes stored at 15 °C for 21 days compared with traditional chlorine treatment. Fresh tomatoes were treated with 3 ml/100ml DWP or 120 mg/L chlorine solutions and packed in perforated polypropylene bags. The results showed that DWP treatment significantly reduced the number of total aerobic counts (~1.62 log cfu/g) and yeast and moulds (~1.66 log cfu/g) of tomatoes compared to chlorine during storage. Moreover, the tomatoes treated by DWP remained firmer (22 %) than the control …
Valorisation Of Apple Peels, Laura Massini, Daniel Rico, Ana Belen Martin-Diana, Catherine Barry-Ryan
Valorisation Of Apple Peels, Laura Massini, Daniel Rico, Ana Belen Martin-Diana, Catherine Barry-Ryan
Articles
The peels of processed apples can be recovered for further food applications. Limited information on the valorisation of this type of waste is available for cooking varieties, e.g. cv Bramley’s Seedling. Extracts from fresh or dried (oven-dried or freeze-dried) peels were obtained with solvents of different polarity (aqueous acetone or ethanol) and assayed for their total phenolic content and antioxidant capacity; their antiradical power was compared to herb extracts. The dried peels were also characterised as bulk powders by assessing their nutritional value and total phenolic content. High amounts of ascorbic acid (up to 4 mg/g, dry weight) and polyphenols …
Making Connections: Networked Mindmaps As A Student Centred Assessment For Learning., Barry Ryan
Making Connections: Networked Mindmaps As A Student Centred Assessment For Learning., Barry Ryan
Articles
Engaging students is a difficult task faced by all academics. Student engagement can be achieved by giving ownership of their learning back to the student and by carefully aligning the assessment methodology to the students learning and future employability. To promote learning ownership in this case-study, a group of final year students were involved in the design of the delivery (‘flipped classroom’) and assessment strategy (‘flipped assessment’) of the curriculum. Upon reflection, students noted a deep understanding of their self-selected topic by taking ownership of their learning and their ‘assessment for learning’ within the bounded learning environment. Additionally, students enhanced …
Line Up, Line Up: Using Technology To Align And Enhance Peer Learning And Assessment In A Student Centred Foundation Organic Chemistry Module., Barry Ryan
Articles
This paper describes how three technologies were utilised in combination to align student learning and assessment as part of a case study. Multiple choice questions (MCQs) were central to all these 10 technologies. The peer learning technologies; Personal Response Devices (a.k.a. Clickers) and PeerWise (http://peerwise.cs.auckland.ac.nz), were implemented to achieve scaffolded, self-directed independent learning by the students which aligned to the assessment methodology through creating, analysing, answering and discussing multiple choice questions. Personal response devices enhanced in-class activity involvement, whilst PeerWise provided structure and support for independent student learning through 15 defined outside class activities. An associated technology, online MCQs hosted …
A Walk Down The Red Carpet: Students As Producers Of Digital Video-Based Knowledge., Barry Ryan
A Walk Down The Red Carpet: Students As Producers Of Digital Video-Based Knowledge., Barry Ryan
Articles
Disengaged and apathetic students are common in many undergraduate classrooms. Learning to these students is a passive process, typified by a consumer-like attitude. One approach to engage students, and enhance the learning experience, is to integrate active learning into the curriculum. The purpose of the pedagogical evaluative study described here was to investigate if student researched, designed and created digital video could act as a viable reusable peer learning resource. Although the use and integration of technology was central to the scope of this project, other ideas such as threshold concepts, the requirement for both active and authentic social constructivist …
When The Human Factor Is At The Core Of The Safety Barrier, Maria Chiara Leva, Catalina Bermudez Angel, Emmanuel Plot, Marco Gattuso
When The Human Factor Is At The Core Of The Safety Barrier, Maria Chiara Leva, Catalina Bermudez Angel, Emmanuel Plot, Marco Gattuso
Articles
There are situation in the industry where the human actions are the main safety barriers to abnormal or accidental conditions. In order to maximize the reliability of good human and organizational barriers we need to ensure that the action-plans generated are based on a valid risk assessment of the situation to be addressed and informed by a relevant human factor analysis. This implies that the process needs to be participatory in nature, thus involving end user all the way through. In this paper we present a study in which a critical scenario of vessel overpressure was analyzed using a bowtie. …
Combined Treatment With Mild Heat, Manothermosonication And Pulsed Electric Fields Reduces Microbial Growth In Milk., Rachel Halpin, O. Cregenzán-Alberti, P. Whyte, J.G Lyng, F. Noci
Combined Treatment With Mild Heat, Manothermosonication And Pulsed Electric Fields Reduces Microbial Growth In Milk., Rachel Halpin, O. Cregenzán-Alberti, P. Whyte, J.G Lyng, F. Noci
Articles
In recent years, there has been considerable interest in non-thermal milk processing. The objective of the present study was to assess the efficacy of two non-thermal technologies (manothermosonication; MTS, and pulsed electric fields; PEF) in comparison to thermal pasteurisation, by assessing the microbial levels of each of these milk samples post-processing. Homogenised milk was subjected to MTS (frequency; 20 kHz, amplitude; 27.9 μm, pressure; 225 kPa) at two temperatures (37 °C or 55 °C), before being immediately treated with PEF (electric field strength; 32 kV/cm, pulse width; 10 μs, frequency; 320 Hz). Thermal pasteurisation (72 °C, 20 s) was included …
The Effect Of Non-Thermal Processing Technologies On Microbial Inactivation: An Investigation Into Sub-Lethal Injury Of Escherichia Coli And Pseudomonas Fluorescens, Rachel Halpin, L. Duffy, O. Cregenzán-Alberti,, J.G Lyng, F. Noci
The Effect Of Non-Thermal Processing Technologies On Microbial Inactivation: An Investigation Into Sub-Lethal Injury Of Escherichia Coli And Pseudomonas Fluorescens, Rachel Halpin, L. Duffy, O. Cregenzán-Alberti,, J.G Lyng, F. Noci
Articles
In recent years, there has been an increased interest in food processing technologies that could lessen the thermal impact on food products. In the present study, thermosonication (TS) and pulsed electric fields (PEF), applied individually or in combination (TS/PEF), were investigated to determine their effects on inactivation and sub-lethal injury of Pseudomonas fluorescens and Escherichia coli. TS was applied at a low (L) and high (H) wave amplitude (18.6 μm and 27.9 μm, respectively), while PEF was applied at a low and high electrical field strength (29 kV cm−1 and 32 kV cm−1, respectively). In addition, …
Human And Organisational Factors As A Risk Management Strategy In An Aviation Maintenance Company, Samuel Cromie, Paul Liston, Derek Ross, Siobhan Corrigan, Lindita Vani, Dara Lynch, Solonas Demosthenous, Maria Chiara Leva, Alison Kay, Vangelis Demosthenous
Human And Organisational Factors As A Risk Management Strategy In An Aviation Maintenance Company, Samuel Cromie, Paul Liston, Derek Ross, Siobhan Corrigan, Lindita Vani, Dara Lynch, Solonas Demosthenous, Maria Chiara Leva, Alison Kay, Vangelis Demosthenous
Articles
Aviation has for many years been one of the leading industries in addressing human and organisational factors (HOF) within its different sectors – flight operations, air traffic control, ground operations, maintenance, etc. In particular aviation has led the way in mandating a range of measures that address HOF issues – reporting systems, shift-handover procedures, etc (e.g. UK CAA, 2003). A key element of the regulation has been the mandating of initial and continuation training in HOF for virtually all personnel working in aviation maintenance. By contrast the development of practice and regulation of risk and safety management in aviation has …