A Responsividade Ambiental das Empresas: Análise das Pressões Externas e dos Benefícios Estratégicos

Ao longo dos últimos anos, a sociedade tem vindo a preocupar-se cada vez mais com o meio ambiente e com a sua crescente degradação. Neste contexto, o setor empresarial é normalmente considerado como um dos responsáveis por esse problema, devido à poluição e aos detritos que gera. As crescentes preocupações ambientais por parte da sociedade levam as organizações a tentar ser ambientalmente responsivas, através da inclusão de medidas ambientais nas suas estratégias e processos de funcionamento, de forma a minimizarem os impactos negativos da sua atividade empresarial. Com este contexto em mente, esta dissertação visa estudar a responsividade ambiental e a sua relação com alguns fatores que podem influenciar a sua implementação nas empresas, nomeadamente a pressão que os stakeholders externos exercem na empresa, os compromissos assumidos pela alta gestão em adotar medidas ambientais e ainda os benefícios que a empresa pode adquirir com este processo. Para esse objetivo, são formuladas hipóteses que tentam estabelecer relações entre as variáveis apontadas. Essas hipóteses são então testadas através de uma análise de conteúdo a um conjunto de Relatórios de Sustentabilidade, publicados por variadas empresas. No fim, os resultados obtidos na análise possibilitam tirar conclusões que permitem aceitar ou rejeitar essas hipóteses.

Concepção de uma rede de monitorização da qualidade da água com base nas pressões antropogénicas

Comunicação seleccionada e artigo em Livro de Actas

Improving daylighting performance of mirrored light pipes

This paper assesses and compares the performances of two daylight collection strategies, one passive and one active, for large-scale mirrored light pipes (MLP) illuminating deep plan buildings. Both strategies use laser cut panels (LCP) as the main component of the collection system. The passive system comprises LCPs in pyramid form, whereas the active system uses a tiled LCP on a simple rotation mechanism that rotates 360° in 24 hours. Performance is assessed using scale model testing under sunny sky conditions and mathematical modelling. Results show average illuminance levels for the pyramid LCP ranging from 50 to 250 lux and 150 to 200 lux for the rotating LCPs. Both systems improve the performance of a MLP. The pyramid LCP increases the performance of a MLP by 2.5 times and the rotating LCP by 5 times, when compared to an open pipe particularly for low sun elevation angles.

Support for energy-oriented design in the Australian context

There is a need for decision support tools that integrate energy simulation into early design in the context of Australian practice. Despite the proliferation of simulation programs in the last decade, there are no ready-to-use applications that cater specifically for the Australian climate and regulations. Furthermore, the majority of existing tools focus on achieving interaction with the design domain through model-based interoperability, and largely overlook the issue of process integration. This paper proposes an energy-oriented design environment that both accommodates the Australian context and provides interactive and iterative information exchanges that facilitate feedback between domains. It then presents the structure for DEEPA, an openly customisable system that couples parametric modelling and energy simulation software as a means of developing a decision support tool to allow designers to rapidly and flexibly assess the performance of early design alternatives. Finally, it discusses the benefits of developing a dynamic and concurrent performance evaluation process that parallels the characteristics and relationships of the design process.

Bollywood Extras

"Bollywood Extras" has been described as a bit like Vladimir Nabokov's "Lolita" (1955) meets Nathanael West's "Day of the Locust" (1939). Unlike those two classics, this new novel by Dr D. Bruno Starrs is set in 21st Century India's Hindi-language film industry epicenter known as 'Bollywood', Mumbai's answer to America's 'Hollywood'. And there is another major difference: the story (i.e. the narrative interaction between an American Extras Casting Agent, 'Dr Arden Pyle', an under-age wannabe Bollywood starlet, 'Chandy', and the despicable but wealthy Indian man who stalks her, 'Ishmail'), is all staged against a backdrop of rabid religious terrorism. Written with the unique black comedic and literary flair Dr D. Bruno Starrs is renown for, this, his 3rd full-length novel, boldly captures the feel of Mumbai and the small-time players in its big-time film industry, with style, humor and originality. Tom Flood, winner of the Miles Franklin Literary Award and founder of Flood Manuscripts, said this of the novel's second last draft: "What is best about 'Bollywood Extras' will likely be its albatross in the sliced bread world of mainstream publishing. Three strengths that make the work what it is - the length, the style, the intellectual capital - will be three strikes against it when it comes to the money. While I delight in rich language and agile invention, I've given you the reasons the trade ('legit') presses won't take 'Bollywood Extras'. Do I think you should you change it? No. I like it. Why ruin an interesting work for money?" As a professional assessor, Flood did, of course, offer many suggestions and these were duly implemented, although the author steadfastly adhered to the style he had already cemented, thus not changing in anyway what Flood refers to as its three strengths. Dr Starrs knew (having accessed Flood's professional services previously) that a 'Thumbs Up' from the best manuscript assessor in the country meant that Bollywood Extras was ready to be birthed. So, here it is: Dr Starrs has delivered his 3rd baby and 'christened' it "Bollywood Extras"!

Ozone-initiated particle formation, particle aging, and precursors in a laser printer

An increasing number of researchers have hypothesized that ozone may be involved in the particle formation processes that occur during printing, however no studies have investigated this further. In the current study, this hypothesis was tested in a chamber study by adding supplemental ozone to the chamber after a print job without measurable ozone emissions. Subsequent particle number concentration and size distribution measurements showed that new particles were formed minutes after the addition of ozone. The results demonstrated that ozone did react with printer-generated volatile organic compounds (VOCs) to form secondary organic aerosols (SOAs). The hypothesis was further confirmed by the observation of correlations among VOCs, ozone, and particles concentrations during a print job with measurable ozone emissions. The potential particle precursors were identified by a number of furnace tests, which suggested that squalene and styrene were the most likely SOA precursors with respect to ozone. Overall, this study significantly improved scientific understanding of the formation mechanisms of printer-generated particles, and highlighted the possible SOA formation potential of unsaturated nonterpene organic compounds by ozone-initiated reactions in the indoor environment. © 2011 American Chemical Society.

Inside the pleasure dome : cultural tourism on Australia’s Gold Coast

The City of the Gold Coast in Queensland, Australia, will host the Commonwealth Games in 2018. In advance of the Games, the City is beginning to reposition the traditional marketing programs that were based around the four S’s- ‘sun, sand, surf and sex.’ There is a new emphasis on urban sophistication, sport, science, education and the environment. At the same time, local communities are asking for renewed attention to residential issues, particularly relating to recognising the importance of culture to the region. In this paper I explore the development of integrated computer technologies (ICTs) as a way of linking tourism, culture and place in the experience economy of the Gold Coast. The discussion is framed by theories of the post-tourist, contemporary cultural tourism and the role of mobile technologies, and the figure of the ‘referential tourist.’ An examination of stakeholder responses to changing business and social frameworks on the Gold Coast shows how discussions about a range of issues coalesce around cultural tourism. Local communities have the opportunity to engage with the new tourist as they move quickly between leisure and cultural experiences, at once connected to tourist expectations but increasingly self-directed. The Surfers Paradise Nights campaign, which is based around social media, is a case in point. This campaign aims to interest visitors in becoming a part of a familiar third place, an online space, but one that will sustain an emotive connection to the physical location and events. The paper also draws on research carried out in Brisbane, Queensland, in relation to building connections between place and culture on designated, self-directed journeys via iPhone technology. Participant responses indicate the importance of narrative to developing cultural frameworks.

Adsorption and dissociation of ammonia borane outside and inside single-walled carbon nanotubes : A density functional theory study

Amonia borane (AB) has been identified as a potential candidate highcapacity hydrogen storage material. This work probes the adsorption and dissociation of AB inside and outside single-walled carbon nanotubes (SWCNTs) within the framework of density functional theory. The dissociation barriers of AB have been calculated and compared with that of the isolated AB molecule. On the basis of the present calculations, no notable improvement results from SWCNT confinement; on the contrary, the dissociation barrier slightly increases with respect to isolated AB.

Injecting Creative Commons Licensing into university policy and publishing

Australian universities are publishing previously unpublished works such as theses in institutional repositories or by publishing scholarly journals on their own presses. This re-invented role of publisher is due in part, to the availability of digital age technologies which scaffold the publishing process and facilitate inexpensive production of digital-only journals. The global push for Open Access to the outputs of publicly-funded research has also been a major driver. Research funder mandates and institutional Open Access policies apply only to publications for which the authors have no expectation of commercial gain. In all cases the primary motivation is to disseminate widely for maximum uptake with attribution to the author thereby increasing impact. This makes works published in institutional repositories and on university presses ideal candidates for Creative Commons licences.

Effect of configuration of the inhibitors on the mode of binding to the enzyme, thermolysin

Preferred conformations of the competitive inhibitors glycyl-L-phenylalanine and glycyl-D-phenylalanine and their mode of binding to thermolysin have been studied. The difference in configuration is shown to affect significantly the mode of binding to thermolysin. Gly-D-Phe prefers to enter the active site in the global minimum conformation whereas Gly-L-Phe may enter in a higher energy conformation. Moreover, D-enantiomer is shown to have a better fit than the L-counterpart in the active site.

The modes of binding methyl-alpha (and beta)-D-glucopyranosides and some of their derivatives to concanavalin A--a theoretical approach

The probable modes of binding of Methyl--alpha (and beta)-D-glucopyranosides and some of their derivatives to concanavalin A have been proposed from theoretical studies. Theory predicts that beta-MeGlcP can bind to ConA in three different modes whereas alpha-MeGlcP can bind only in one mode. beta-MeGlcP in its most favourable mode of binding differs from alpha-MeGlcP in its alignment in the active-site of the lectin where it binds in a flipped or inverted orientation. Methyl substitution at the C-2 atom of the alpha-MeGlcP does not significantly affect the possible orientations of the sugar in the active-site of the lectin. Methyl substitution at C-3 or C-4, however, affects the allowed orientations drastically leading to the poor inhibiting power of Methyl-3-O-methyl-alpha-D-glucopyranoside and the inactivity of Methyl-4-O-methyl-alpha-D-glycopyranoside. These studies suggest that the increased activity of the alpha-MeGlcP over beta-MeGlcP may be due to the possibility of formation of better hydrogen bonds and to hydrophobic interactions rather than to steric factors as suggested by earlier workers. These models explain the available NMR and other binding studies.

A detailed study of Li-DNA fibres at various salt concentrations reveals a non-helical B-DNA and a possible similarity of solution and solid state structures

A thorough investigation of salt concentration dependence of lithium DNA fibres is made using X-ray diffraction. While for low salt the C-form pattern is obtained, crystalline B-type diffraction patterns result on increasing the salt concentration. The salt content in the gel (from which fibres are drawn) is estimated by equilibrium dialysis using the Donnan equilibrium principle. The salt range giving the best crystalline B pattern is determined. It is found that in this range meridional reflections occur on the fourth and sixth layer lines. In addition, the tenth layer meridian is absent at a particular salt concentration. These results strongly suggest the presence of non-helical features in the DNA molecule. Preliminary analysis of the diffraction patterns indicates a structural variability within the B-form itself. Further, the possibility of the structural parameters of DNA being similar in solid state and in solution is discussed.

Glutamatergic Modulation of Cue-Induced Drug-Seeking Behavior in the Rat

The characteristics of drug addiction include compulsive drug use despite negative consequences and re-occurring relapses, returns to drug use after a period of abstinence. Therefore, relapse prevention is one of the major challenges for the treatment of drug addiction. There are three main factors capable of inducing craving for drugs and triggering relapse long after cessation of drug use and dissipation of physical withdrawal signs: stress, re-exposure to the drug, and environmental stimuli (cues) that have been previously associated with drug use. The neurotransmitters dopamine and glutamate have been implicated in the modulation of drug-seeking behavior. The aim of this project was to examine the role of glutamatergic neurotransmission in relapse triggered by conditioned drug-associated stimuli. The focus was on clarifying whether relapse to drug seeking can be attenuated by blockade of glutamate receptors. In addition, as the nucleus accumbens has been proposed to participate in the modulation of drug-seeking behavior, the effects of glutamate receptor blockade in this brain structure on cue-induced relapse were investigated. The studies employed animals models in which rats were trained to press a lever in a test cage to obtain alcohol or intravenous cocaine. Drug availability was paired with distinct olfactory, auditory, or visual stimuli. This phase was followed by extinction training, during which lever presses did not result in the presentation of the drug or the drug-associated stimuli. Extinction training led to a gradual decrease in the number of lever presses during test sessions. Relapse was triggered by presenting the rats with the drug-associated stimuli in the absence of alcohol or cocaine. The drug-associated stimuli were alone capable of inducing resumption of lever pressing and maintaining this behavior during repeated testing. The number of lever presses during a session represented the intensity of drug-seeking and relapse behavior. The results suggest that glutamatergic neurotransmission is involved in the modulation of drug-seeking behavior. Both alcohol and cocaine relapse were attenuated by systemic pretreatment with glutamate receptor antagonists. However, differences were found in the ability of ionotropic AMPA/kainate and NMDA receptor antagonists to regulate drug-seeking behavior. The AMPA/kainate antagonists CNQX and NBQX, and L-701,324, an antagonist with affinity for the glycine site of the NMDA receptor, attenuated cue-induced drug seeking, whereas the competitive NMDA antagonist CGP39551 and the NMDA channel blocker MK-801 were without effect. MPEP, an antagonist at metabotropic mGlu5 glutamate receptors, also decreased drug seeking, but its administration was found to lead to conditioned suppression of behavior during subsequent treatment sessions, suggesting that MPEP may have undesirable side effects. The mGluR2/3 agonist LY379268 and the mGluR8 agonist (S)-3,4-DCPG decreased both cue-induced relapse to alcohol drinking and alcohol consumption. Control experiments showed however that administration of the agonists was accompanied by motor suppression limiting their usefulness. Administration of the AMPA/kainate antagonist CNQX, the NMDA antagonist D-AP5, and the mGluR5 antagonist MPEP into the nucleus accumbens resulted also in a decrease in drug-seeking behavior, suggesting that the nucleus accumbens is at least one of the anatomical sites regulating drug seeking and mediating the effects of glutamate receptor antagonists on this behavior.

Kuviteltu aatelismies : Aateluus viholliskuvana ja itseymmärryksenä 1800-luvun Suomessa

An imagined nobleman Nobility as an enemy image and in-group identity in nineteenth-century Finland The focal point of this study is the difficult relationship between two seemingly very different 19th-century elite groups, the upwardly mobile bourgeois intelligentsia and the slowly declining traditional nobility. In the thinking of the bourgeois contender the two emerged as exact opposites, styled as conflicting ideal types: an outdated, exclusive, degenerate hereditary aristocracy versus a dynamic and progressive new force in society, recruited solely on the basis of personal merit, originating from the common people and representing the nation. The appearance of an important 19th-century novelty, print publicity, coincided with the emergence of the bourgeois intelligentsia. The institutions of the developing publishing industry were manned by the aspiring new group. The strengthening flow of progressive, democratic, nationalist ideas distributed via the printing presses carried an undercurrent of self-promotion. It transmitted to the developing readership the self-image of the new cultural bourgeoisie as the defender and benevolent educator of the nation. Having won the contest over the media, the intelligentsia was free to present its predecessor and rival as an enemy of the people. In its politics the nobility emerged as an ideal scapegoat, represented as the source for existing social evils, all if which would promptly go away after its disappearance. It also served as a black backcloth, against which the democratic, national, progressive bourgeois intelligentsia would shine more brightly. In order to shed light on the 19th-century process of (re)modelling the image of nobility as a public enemy I have used four different types of source materials. These include three genres of print publicity, ranging from popular historical and contemporary fiction to nonfictional presentations of national history and the news and political commentaries of the daily papers, complemented by another, originally oral type of publicity, the discussion protocols of the Finnish four-estate parliament. To counterpoint these I also analysed the public self-image of the nobility, particularly vis-à-vis the nationalist and democratic ethos of the modernising politics.