115 research outputs found
Innovation by demand: An interdisciplinary approach to the study of demand and its role in innovation
The structure and regulation of consumption and demand has recently become of great interest to sociologists and economists alike, and at the same time there is growing interest in trying to understand the patterns and drivers of technological innovation. This book brings together a range of sociologists and economists to study the role of demand and consumption in the innovative process. The book starts with a broad conceptual overview of ways that the sociological and economics literatures address issues of innovation, demand and consumption. It goes on to offer different approaches to the economics of demand and innovation through an evolutionary framework, before reviewing how consumption fits into evolutionary models of economic development. Food consumption is then looked at as an example of innovation by demand, including an examination of the dynamic nature of socially-constituted consumption routines. The book includes a number of illuminating case studies, including an analysis of how black Americans use consumption to express collective identity, and a number of demand-innovation relationships within matrices or chains of producers and users or other actors, including service industries such as security, and the environmental performance of companies. The involvement of consumers in innovation is looked at, including an analysis of how consumer needs may be incorporated in the design of high-tech products. The final chapter argues for the need to build an economic sociology of demand that goes from micro-individual through to macro-structural features
Typhoon damage on a shallow mesophotic reef in Okinawa, Japan
Little is known about effects of large storm systems on mesophotic reefs. This study reports on how Typhoon 17 (Jelawat) affected Ryugu Reef on Okinawa-jima, Japan in September 2012. Benthic communities were surveyed before and after the typhoon using line intercept transect method. Comparison of the benthic assemblages showed highly significant differences in coral coverage at depths of 25–32 m before and after Typhoon 17. A large deep stand of Pachyseris foliosa was apparently less resistant to the storm than the shallower high diversity area of this reef. Contradictory to common perception, this research shows that large foliose corals at deeper depths are just as susceptible to typhoon damage as shallower branching corals. However, descriptive functional group analyses resulted in only minor changes after the disturbance, suggesting the high likelihood of recovery and the high resilience capacity of this mesophotic reef
Issues concerning web-based business reporting: an analysis of the views of interested parties
Rapid developments in information and communications technology have led organisations in many countries to consider the impact of the Internet on the delivery and dissemination of business information. This paper reports the findings of a UK study into the views of various user groups, preparers and auditors regarding specific proposals for change and newly emerging practices. Over 500 individuals from six groups responded to a questionnaire study, representing an overall response rate of 33%. Views were elicited regarding: (i) the desirability of different kinds of additional information that could be provided electronically, (ii) the usefulness of different navigation and search aids, and (iii) the portability of information under different formats.It is found that users favour many of the expansions of scope made possible by the web. A range of navigation aids, search aids and file formats are found by all groups to be at least fairly useful, especially global navigation aids. Preferences regarding file formats vary across the groups. Paired group comparisons show that, while expert and non-expert users hold similar views in relation to many issues, users' and preparers' views differ considerably. Auditors' views generally fall in between those of users and preparers. Cyert and Ijiri's (1974) framework is used to rationalise the observed conflicts and congruences of interest, underpinning clear pointers for policy-makers
Reef fish hybridization: lessons learnt from butterflyfishes (genus Chaetodon)
Natural hybridization is widespread among coral reef fishes. However, the ecological promoters and evolutionary consequences of reef fish hybridization have not been thoroughly evaluated. Butterflyfishes form a high number of hybrids and represent an appropriate group to investigate hybridization in reef fishes. This study provides a rare test of terrestrially derived hybridization theory in the marine environment by examining hybridization between Chaetodon trifasciatus and C. lunulatus at Christmas Island. Overlapping spatial and dietary ecologies enable heterospecific encounters. Nonassortative mating and local rarity of both parent species appear to permit heterospecific breeding pair formation. Microsatellite loci and mtDNA confirmed the status of hybrids, which displayed the lowest genetic diversity in the sample and used a reduced suite of resources, suggesting decreased adaptability. Maternal contribution to hybridization was unidirectional, and no introgression was detected, suggesting limited, localized evolutionary consequences of hybridization
Spearfishing Regulation Benefits Artisanal Fisheries: The ReGS Indicator and Its Application to a Multiple-Use Mediterranean Marine Protected Area
The development of fishing efficiency coupled with an increase of fishing effort led to the overexploitation of numerous natural marine resources. In addition to this commercial pressure, the impact of recreational activities on fish assemblages remains barely known. Here we examined the impact of spearfishing limitation on resources in a marine protected area (MPA) and the benefit it provides for the local artisanal fishery through the use of a novel indicator. We analysed trends in the fish assemblage composition using artisanal fisheries data collected in the Bonifacio Strait Natural Reserve (BSNR), a Mediterranean MPA where the spearfishing activity has been forbidden over 15% of its area. Fish species were pooled into three response groups according to their target level by spearfishing. We developed the new flexible ReGS indicator reflecting shifts in species assemblages according to the relative abundance of each response group facing external pressure. The catch per unit effort (CPUE) increased by ca. 60% in the BSNR between 2000 and 2007, while the MPA was established in 1999. The gain of CPUE strongly depended on the considered response group: for the highly targeted group, the CPUE doubled while the CPUE of the untargeted group increased by only 15.5%. The ReGS value significantly increased from 0.31 to 0.45 (on a scale between 0 and 1) in the general perimeter of this MPA while it has reached a threshold of 0.43, considered as a reference point, in the area protected from spearfishing since 1982. Our results demonstrated that limiting recreational fishing by appropriate zoning in multiple-use MPAs represents a real benefit for artisanal fisheries. More generally we showed how our new indicator may reveal a wide range of impacts on coastal ecosystems such as global change or habitat degradation
DNA and bone structure preservation in medieval human skeletons
Morphological and ultrastructural data from archaeological human bones are scarce, particularly data that have been correlated with information on the preservation of molecules such as DNA. Here we examine the bone structure of macroscopically well-preserved medieval human skeletons by transmission electron microscopy and immunohistochemistry, and the quantity and quality of DNA extracted from these skeletons. DNA technology has been increasingly used for analyzing physical evidence in archaeological forensics; however, the isolation of ancient DNA is difficult since it is highly degraded, extraction yields are low and the co-extraction of PCR inhibitors is a problem. We adapted and optimized a method that is frequently used for isolating DNA from modern samples, Chelex® 100 (Bio-Rad) extraction, for isolating DNA from archaeological human bones and teeth. The isolated DNA was analysed by real-time PCR using primers targeting the sex determining region on the Y chromosome (SRY) and STR typing using the AmpFlSTR® Identifiler PCR Amplification kit. Our results clearly show the preservation of bone matrix in medieval bones and the presence of intact osteocytes with well preserved encapsulated nuclei. In addition, we show how effective Chelex® 100 is for isolating ancient DNA from archaeological bones and teeth. This optimized method is suitable for STR typing using kits aimed specifically at degraded and difficult DNA templates since amplicons of up to 250 bp were successfully amplified
Movements of marine fish and decapod crustaceans: Process, theory and application
Many marine species have a multi-phase ontogeny, with each phase usually associated with a spatially and temporally discrete set of movements. For many fish and decapod crustaceans that live inshore, a tri-phasic life cycle is widespread, involving: (1) the movement of planktonic eggs and larvae to nursery areas; (2) a range of routine shelter and foraging movements that maintain a home range; and (3) spawning migrations away from the home range to close the life cycle. Additional complexity is found in migrations that are not for the purpose of spawning and movements that result in a relocation of the home range of an individual that cannot be defined as an ontogenetic shift. Tracking and tagging studies confirm that life cycle movements occur across a wide range of spatial and temporal scales. This dynamic multi-scale complexity presents a significant problem in selecting appropriate scales for studying highly mobile marine animals. We address this problem by first comprehensively reviewing the movement patterns of fish and decapod crustaceans that use inshore areas and present a synthesis of life cycle strategies, together with five categories of movement. We then examine the scale-related limitations of traditional approaches to studies of animal-environment relationships. We demonstrate that studies of marine animals have rarely been undertaken at scales appropriate to the way animals use their environment and argue that future studies must incorporate animal movement into the design of sampling strategies. A major limitation of many studies is that they have focused on: (1) a single scale for animals that respond to their environment at multiple scales or (2) a single habitat type for animals that use multiple habitat types. We develop a hierarchical conceptual framework that deals with the problem of scale and environmental heterogeneity and we offer a new definition of 'habitat' from an organism-based perspective. To demonstrate that the conceptual framework can be applied, we explore the range of tools that are currently available for both measuring animal movement patterns and for mapping and quantifying marine environments at multiple scales. The application of a hierarchical approach, together with the coordinated integration of spatial technologies offers an unprecedented opportunity for researchers to tackle a range of animal-environment questions for highly mobile marine animals. Without scale-explicit information on animal movements many marine conservation and resource management strategies are less likely to achieve their primary objectives
Crop Updates 2005 - Geraldton
This session covers seventeen papers from different authors
2005 Seasonal Outlook, David Stephens and Nicola Telcik, Department of Agriculture
Horses for Courses – using the best tools to manage climate risk, Cameron Weeks, Mingenew-Irwin Group / Planfarm and Richard Quinlan, Planfarm Agronomy
Global influences driving Australian agriculture, Tony Harman, Australian Government Department of Agriculture, Fisheries and Forestry
Wheat yield and quality improvements – where have they come from and can we have more? Wal Anderson, Department of Agriculture
Rotations for nematode management, Vivien A. Vanstone, Sean J. Kelly, Helen F. Hunter and Mena C. Gilchrist, Department of Agriculture
Integrate strategies to manage stripe rust risk, Ciara Beard, Geoff Thomas, Robert Loughman, Kith Jayasena and Manisha Shenkar, Department of Agriculture
Frequency of herbicide resistance in wild radish populations across the WA wheatbelt, Dr Michael Walsh, Mechelle Owen and Prof. Stephen Powels, University of Western Australia
The incidence and severity of wild radish resistance in the NAR – results from an in-situ survey, Rob Grima and Andrew Blake, Elders Limited
Stubble management: the pros and cons of different methods, Bill Bowden, Department of Agriculture, Mike Collins WANTFA
Effectiveness of Zinc Application Methods in Wheat, Luigi Moreschi, CSBP
Know your Mo, Douglas Hamilton, Department of Agriculture
Atrazine contamination of groundwater in the agricultural region of Western Australia, Russell Speed1, Neil Rothnie2, John Simons1, Ted Spadek2, and John Moore1, 1Department of Agriculture, 2Chemistry Centre (W.A.)
Comparison of canola varieties in the Northern Agricultural Region in 2004, Graham Walton Department of Agriculture
Pasture rotations are a promising option for sandplain production, Nadine Eva, Department of Agriculture
Zone management can improve profit on sandplain, Bindi Webb, Damian Shepherd, Department of Agriculture, David Forrester, Davejeff Farms, casuarinas via Geraldton, Peter Tozer, Department of Agriculture
Crop leftovers: what’s in stubble for sheep? Roy Butler and Keith Croker, Department of Agriculture
Realising Rural Equity, Nathan Windebank, Australian Agricultural Contracts Limite
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