Digital Commons Network^™

Managing Indigenous Knowledge And Traditional Cultural Expressions: Is Technology The Solution?, Amber T. Burtis

Articles

This paper discusses current issues surrounding the management of indigenous knowledge (IK) and traditional cultural expressions (TCEs) in libraries, archives and other cultural institutions. It addresses the need for: (1) ethical policies for the management of these knowledge systems, (2) critical approaches to the dominant library paradigm of information management, (3) recent efforts by the World Intellectual Property Organization and the American Library Association to craft policy on this topic, and (4) the need for and examples of collaboration with indigenous communities. Implications for social change with the implementation of socially responsible management systems are also considered.

Two Notions Of Privacy Online, Avner Levin, Patricia S. Abril

Articles

Users of social networking websites tend to disclose much personal information online yet seem to retain some form of an expectation of privacy. Is this expectation of privacy always unreasonable? How do users of online social networks define their expectations of privacy online?

These questions were the impetus behind an empirical study, the findings of which are presented in this Article. The project, simultaneously conducted in Canada, at Ryerson University, and in the United States, at the University of Miami, consisted of a survey regarding personal information protection and expectations of privacy on online social networks (OSNs). Approximately 2,500 young …

From The Chair, Lela P. Love

Articles

No abstract provided.

The Mexican Economic Crisis Of 1982 And The Brazilian Economic Crisis Of 1999:Critical Junctures In Economic Policy?, Ana Maza

Articles

This paper utilises a new critical juncture framework to help us determine whether changes to Mexican macroeconomic policy in the early 1980s, and Brazilian macroeconomic policy at the turn of the century, were clean breaks with the past, or continuations of previously established policy pathways. The framework consists of three elements, which must be identified in sequence in order to declare, with some certainty, if an event was a critical juncture. These are crisis, ideational change, and radical policy change.

Constitutional Flaw?, Carl E. Schneider

Articles

Do terminally ill patients have a constitutional right "to decide, without FDA interference, whether to assume the risks of using potentially life-saving investigational drugs that the FDA has yet to approve for commercial marketing, but that the FDA has determined, after Phase I clinical human trials, are safe enough for further testing"? In Abigail Alliance for Better Access to Developmental Drugs v. McClellan, the United States District Court for the District of Columbia said "no." In Abigail Alliance for Better Access to Developmental Drugs v. von Eschenbach, a panel (three judges) of the United States Court of Appeals …

Modelling Browning And Brown Spotting Of Mushrooms (Agaricus Bisporus) Stored In Controlled Environmental Conditions Using Image Analysis, Catherine Barry-Ryan, Jesus Maria Frias, Leixuri Aguirre, Helen Grogan

Articles

Mushrooms have a short postharvest shelf life compared to most vegetables, due to a very high metabolic activity and high water content, making them prone to microbial spoilage and to exhibit enzymatic browning. Storage conditions and natural product variability are both important factors that affect the management of mushrooms, and both of them can be managed using monitoring systems. In order to study the effect of the temperature and relative humidity on the whiteness decrease and appearance of brown spotting, an image analysis system was employed. Twenty five batches of mushrooms were subjected to combinations of three storage temperatures (T) …

Orange Juices Enriched With Chitosan: Optimisation For Extending The Shelf-Life, Catherine Barry-Ryan, Ana Belen Martin-Diana, Daniel Rico, J. Barat

Articles

Optimisation of the incorporation of chitosan in orange juice was accomplished by the evaluation of quality and nutritional markers. Response surface methodology was applied to obtain quadratic and second degree response surface model equations. The analyses showed that increases in chitosan concentration extended the quality of the orange juice significantly (p < 0.05), reducing enzymatic and non-enzymatic browning and controlling the spoilage during the storage time; however, concentrations N 1 g L− 1 produced a significant (p < 0.05) reduction in the concentrations of ascorbic acid and carotenoids associated with the positive charge of chitosan and its ability to flocculate and coagulate negatively charged substances. Also, concentrations N 1 g L− 1 were scored as unacceptable for the sensory panel due to an increase in bitterness. The study recommends the use of chitosan at concentrations up to 1 g L− 1 to extend quality and preserve ascorbic acid and carotenoids during storage time of fresh orange juice, thus avoiding the use of standard thermal treatments which produces a negative impact on the nutritional value. Industrial relevance: One of the major problems of fresh orange juice is its limited shelf-life. Spoilage and quick degradation of vitamins are two of the most important causes of quality loss during the shelf-life of this product. Moreover, the U. S. Food and Drug Administration issued a warning to consumers against drinking unpasteurised orange juice products because of the potential contamination with Salmonella typhimurium and its association with an outbreak of human disease caused by this organism [FDA issues nationwide health alert on Orchid Island unpasteurised orange juice. Products Recalls, Market Withdrawals and Safety Alerts.]. The main objective of this study was the study of chitosan as a natural preservative for extending the shelf-life of orange juice and as an alternative to pasteurisation.

Identification Of Volatile Quality Markers Of Ready-To-Use Lettuce And Cabbage, Catherine Barry-Ryan, Michael Devereux, Julien Lonchamp

Articles

Volatile emission changes of ready-to-use vegetables directly result from minimal processing and can reflect the sensory changes occurring in the product. Based on the detection of key volatile compounds, novel on-line and consumer quality-monitoring methods can be developed. The aim of this study was to identify volatile biomarkers for a range of leafy green ready-to-use vegetables (Butterhead and Iceberg lettuce and Irish York cabbage). Headspace volatile compounds were monitored using gas chromatography/mass spectrometry (GC/MS). The sensory quality of the products was evaluated at days 1, 7 and 14 using sensory and analytical measurements. Changes of volatile concentrations and sensory attributes …

The Effects Of Acid Adaptation On Escherichia Coli Inactivation Using Power Ultrasound, Sonal Patil, Paula Bourke, Bridget Cullen, Jesus Maria Frias, Patrick J. Cullen

Articles

Inactivation of Escherichia coli in liquids was carried out using power ultrasound. Parameters examined included amplitude levels (0.4µm, 7.5 µm, 37.5 µm), treatment time, cell condition (non-adapted cells, acid adapted cells), liquid media (TSB, model orange juice and model apple juice) and E. coli strain (ATCC 25922, NCTC 12900). The efficacy of ultrasound treatment was found to be a function of amplitude level, treatment time and media (p0.95), with the highest inactivation achieved using an amplitude of 37.5 µm. The D-values of E. coli 25922 at all amplitudes in model orange juice were not significantly different than in TSB media. …

An Independent Analysis Of The Thermal Characteristics Of Irish Concrete Hollow Blocks And Hollow Block Wall Upgrades And A Discussion On Hollow Block Design, Joseph Little, Beñat Arregi Goikolea Mr

Articles

Hollow block walls, whether originally built with external render and internal plaster, or more recently with external render and insulated drylining, represent the most common form of wall construction in Leinster over the last 50 years (see image in Figure 8). In terms of vapour movement, air movement and thermal performance it is also one of the least understood forms of construction practiced in Ireland.

This technical paper and two articles by the same author published by Construct Ireland in February and May 2009 (Issues 6 & 7, Vol. 4) form a concerted effort to rectify this knowledge deficit. It …

A Comparative Framework: How Broadly Applicable Is A “Rigorous” Critical Junctures Framework?, John Hogan, David Doyle

Articles

The paper tests Hogan and Doyle’s (2007; 2008) framework for examining critical junctures. This framework sought to incorporate the concept of ideational change in understanding critical junctures. Until its development, frameworks utilised in identifying critical junctures were subjective, seeking only to identify crisis, and subsequent policy changes, arguing that one invariably led to the other, as both occurred around the same time. Hogan and Doyle (2007; 2008) hypothesised ideational change as an intermediating variable in their framework, determining if, and when, a crisis leads to radical policy change. Here we test this framework on cases similar to, but different from, …

The Dynamics Of Human Capital And The World Of Work: Towards A Common Market In Contemporary Tertiary Education, Aidan Kenny

Articles

The drive for the so-called ‘knowledge society’, and the expected competitive advantage envisioned, has led to ‘power elites’ and vested interests applying pressure on nation states to develop and implement policies that push the balance of national education systems towards the economic imperative and away from the social good. This social inquiry will describe items, strategies and objectives relating to the pursuit of the current higher education change policy agendas, as expressed in key Irish policy documents. The inquiry concentrates on the new ‘world of work’ and the dynamic association with ‘human capital’ in particular the relationship between macro change …

The Mexican Economic Crisis Of 1982 And The Brazilian Economic Crisis Of 1999 - Critical Junctures In Economic Policy, John Hogan, Ana Maza

Articles

This paper utilises a new critical juncture framework to help us determine whether changes to Mexican macroeconomic policy in the early 1980s, and Brazilian macroeconomic policy at the turn of the century, were clean breaks with the past, or continuations of previously established policy pathways. The framework consists of three elements, which must be identified in sequence in order to declare, with some certainty, if an event was a critical juncture. These are crisis, ideational change, and radical policy change.

Preparation, Characterization And Ecotoxicological Evaluation Of Four Environmentally Relevant Species Of N-Isopropylacrylamide And N-Isopropylacrylamide-Co-N-Tert-Butylacrylamide Copolymer Nanoparticles, Pratap Naha, Alan Casey, Tiziana Tenuta, Iseult Lynch, Kenneth Dawson, Hugh Byrne, Maria Davoren

Articles

Poly N-isopropylacrylamide and N-isopropylacrylamide / N-tert-butylacrylamide copolymer nanoparticles of 50 to 70 nm were prepared by free radical polymerisation. The particle sizes of the copolymer nanoparticles were measured in the test media Milli-Q water, Algae Media, Daphnia Media and Microtox Diluent as a function of temperature. Whereas in Milli-Q water the particle size was seen to decrease above the lower critical solution temperature of the thermoresponsive polymer, in the test media it was seen to increase significantly, indicative of aggregation. At the temperatures employed for the ecotoxicological studies all particles, with the exception of the 50:50 copolymer existed as nanoparticles, …

Land Virtues, Eduardo Peñalver

Articles

This Article has two goals. First, I explore some of the descriptive and normative limitations of certain law-and-economics discussions of the ownership and use of land. These market-centered approaches struggle in different ways with features of land that distinguish it from other "commodities." The complexity of land-its intrinsic complexity, but even more importantly the complex ways in which human beings interact with it-undermines the positive claim that owners will focus on a single value, such as market value, in making decisions about their land. Adding to the equation land's "memory," by which I mean the combined impact of the durability …

Breaking The Mould 2 : An Analysis Of Single-Leaf Insulation Upgrades, Joseph Little

Articles

This article is the second in a series looking at thermal upgrades to single-leaf walls of existing houses. It compares a range of ways of upgrading masonry single-leaf walls, particularly the ubiquitous hollow block wall, and the impact of those decisions on moisture content, wind- and airtightness, cost and heating. Future articles will look at various drylining approaches for a range of walls including brick walls of various widths.

Do University Rankings Measure What Counts, Ellen Hazelkorn

Articles

The article discusses the impact of rankings on higher education.

Identifying Critical Junctures In Macroeconomic Policy - The Cases Of Mexico And Sweden In The Early 1980s, Ana Haro Maza, John Hogan

Articles

Abstract: This paper utilizes a new critical junctures framework to help understand the nature of the changes in macroeconomic policy. The framework consists of three elements which must be identified in sequence to be able to declare, with some certainty, if an event was a critical juncture. These are crisis, ideational change, and radical policy change. Utilizing the critical juncture framework, we will determine whether changes to Mexican and Swedish macroeconomic policy in the early 1980s constituted clean breaks with the past, or were continuations of previously established policy pathways, and why that was.

The Paternalistic Ideology Of Erisa And Unforgiving Courts: Restoring Balance Through A Grand Bargain, Edward A. Zelinsky

Articles

No abstract provided.

Marriage Or Liberation? Reflections On Two Strategies In The Struggle For Lesbian And Gay Rights And Relationship Recognition, Edward D. Stein

Articles

A great deal has changed about the legal and social situation for lesbians, gay men, bisexuals, and transgender (LGBT) people since the 1989 publication of Tom Stoddard and Paula Ettelbrick's dueling essays about how the quest for same-sex marriage fit into the larger struggle for LGBT rights. In 1989, twenty-four states and the District of Columbia criminalized most forms of adult consensual sex between people of the same sex and the constitutionality of such sodomy laws had been recently upheld by the U.S. Supreme Court in Bowers v. Hardwick in an opinion that said arguments against the constitutionality of such …

Purposivism And Institutional Competence In Statutory Interpretation, Michael Herz

Articles

No abstract provided.

Identification Of An Rsh Gene From A Novosphingobium Sp. Necessary For Quorum-Sensing Signal Accumulation, Han Ming Gan, Larry Buckley, Ernő Szegedi, André O. Hudson, Michael A. Savka

Articles

The stringent response is a mechanism by which bacteria adapt to environmental stresses and nutritional deficiencies through the synthesis and hydrolysis of (p)ppGpp by RelA/SpoT enzymes. Alphaproteobacteria and plants contain a single Rsh enzyme (named for RelA/SpoT homolog) that is bifunctional. Here we report the identification of a new species of bacteria belonging to the genus Novosphingobium and characterization of an rsh mutation in this plant tumor-associated isolate. Isolate Rr 2-17, from a grapevine crown gall tumor, is a member of the Novosphingobium genus that produces the N-acyl-homoserine lactone (AHL) quorum-sensing (QS) signals. A Tn5 mutant, Hx 699, deficient in …

Impact Of Plant Essential Oils On Microbiological, Organoleptic And Quality Markers Of Minimally Processed Vegetables, Jorge Gutierrez, Paula Bourke, Julien Lonchamp, Catherine Barry-Ryan

Articles

The objectives of this study were to evaluate the efficacy of plant essential oils (EOs) for control of the natural spoilage microflora on ready-to-eat (RTE) lettuce and carrots whilst also considering their impact on organoleptic properties. Initial decontamination effects achieved using EOs were comparable to that observed with chlorine and solution containing oregano recorded a significantly lower initial TVC level than the water treatment on carrots (p < 0.05). No significant differences were found between the EO treatments and chlorine considering gas composition, color, texture and water activity of samples. The sensory panel found EO treatments acceptable for carrots throughout storage, while lettuce washed with the EO solutions were rejected for overall appreciation by Day 7. Correlating microbial and sensory changes with volatile emissions identified 12 volatile quality markers. Oregano might be a suitable decontamination alternative to chlorine for RTE carrots, while the identification of volatile quality markers is a useful complement to sensory and microbiological assessments in the monitoring of organoleptic property changes and shelf-life of fresh vegetables. Industrial relevance There is industrial demand for natural alternatives to chlorine, which is commonly used for decontamination of fresh produce but which has limitations with respect to antimicrobial efficacy and possible formation of carcinogenic compounds in water. Plant essential oils have proven antimicrobial and other bioactive properties, however their usefulness in foods can be mitigated by their high sensory impact. This study examined the application of EOs for fresh produce decontamination addressing control of spoilage microflora and improving shelf-life characteristics whilst also considering the impact on organoleptic properties. The effectiveness of oregano as a decontamination treatment was comparable with that of chlorine. Carrot discs treated with the EO regimes were acceptable in terms of sensory quality and appreciation, therefore oregano could offer a natural alternative for the washing and preservation of fresh produce. Combining EOs with other natural preservatives might minimize doses and reduce the impact on organoleptic properties of fresh vegetables.

Jurisdictions And Causes Of Action In Bullying, Stress And Harassment Cases Part 1, Niall Neligan

Articles

This is the first of a two part article in which the author will critically evaluate the different causes of action and myriad of jurisdictions for bringing a claim in the inter-related fields of bullying, stress and harassment in the workplace from a commercial law perspective. The author will define and trace the separate headings under which the law governing bullying, stress and harassment has evolved. In the second part of the article (which will
appear in the next edition of the journal), the author will examine recent developments in tortious claims for psychiatric injuries arising from bullying, stress and …

Are We On The Right Track? Issues With Lp Record Collections In U.S. Academic Libraries, Andrea Imre, Elizabeth J. Cox

Articles

This article reports on the findings of a survey on collection development and circulation practices of LP records in U.S. academic libraries conducted in September of 2007. Areas of special interest included the size of LP collections, identification of barriers to access, collection development practices, and digitization activities. The survey found that libraries have large LP collections, many libraries have large uncataloged collections, limited resources to manage these sound collections, and are faced with storage problems.

Impacts Of The National Hazardous Waste Management Plan, Victor Hrymak

Articles

The impacts of the national hazardous waste managemnent plan are discussed for various sectors in Ireland. These sectors include pharmaceutical, printing, transport, agriculture, health care, education and local authority sectors.

Extrinsic Control Parameters For Ozone Inactivation Of Escherichia Coli Using A Bubble Column, Sonal Patil, Patrick J. Cullen, Bridget Cullen, Jesus Maria Frias, Paula Bourke

Articles

Aims: To investigate the effect of extrinsic control parameters for ozone inactivation of E. coli in a bubble column. Methods and Results: Ozone inactivation of Escherichia coli ATCC 25922 in Tryptic Soya Broth was examined. The parameters studied included temperature (ambient, 20, 25 and 30°C), exposure time (up to 30 min), gas flow rate (0·03, 0·06, 0·12, 0·25, 0·5 and 0·75 l min−1) and concentration level (five different levels). The efficacy of ozone treatment was a function of the parameters investigated and optimum control parameters of flow rate (0·12 l min−1), temperature (ambient) and ozone concentration (75 μg ml−1) resulted …

Breaking The Mould 1 : A Study Of Condensation In Single-Leaf Concrete Wall Upgrades, Joseph Little

Articles

This article is the first of a series looking at upgrade options and issues associated with single-leaf walls of existing houses. This article will focus on insulated drylined concrete block walls of the ubiquitous housing estate house. This will include the findings of software that dynamically models moisture movement through the wall over several years. The article following this will look at a range of options for replacing existing drylining or installing drylining where it never was before, be that for a solid block wall of a 1950s house or a solid brick wall of an 1850s house.

When Patients Say No (To Save Money): An Essay On The Tectonics Of Health Law., Mark A. Hall, Carl E. Schneider

Articles

The ultimate aim of health care public policy is good care at good prices. Managed care stalled at achieving this goal by trying to influence providers, so health policy has turned to the only market-based option left: treating patients like consumers. Health insurance and tax policy are now pressuring patients to spend their own money when they select health plans, providers, and treatments. Expecting patients to choose what they need at the price they want, consumerists believe that market competition will constrain costs while optimizing quality. This classic form of consumerism is today's watchword. This Article evaluates this ideal type …

Swcnt Suppress Inflammatory Mediator Responses In Human Lung Epithelium In Vitro, Eva Herzog, Hugh Byrne, Maria Davoren, Anke-Gabriele Lenz, Albert Duschl, Gertie Janneke Oostingh

Articles

Single walled carbon nanotubes have gained enormous popularity due to a variety of potential applications which will ultimately lead to increased human and environmental exposure to these nanoparticles. This study was carried out in order to evaluate the inflammatory response of immortalised and primary human lung epithelial cells (A549 and NHBE) to single walled carbon nanotube samples (SWCNT). Special focus was placed on the mediating role of lung surfactant on particle toxicity. The toxicity of SWCNT dispersed in cell culture medium was compared to that of nanotubes dispersed in dipalmitoylphosphatidylcholine (DPPC, the main component of lung lining fluid). Exposure was …