Constraining the age of the iporanga formation with SHRIMP U-Pb zircon: Implications for possible ediacaran glaciation in the Ribeira Belt, SE Brazil

The Ribeira belt in SE Brazil is a Neoproterozoic to Early Palaeozoic orogen, whose architecture and history is not yet fully understood. The depositional age of many of the sedimentary sequences in the Ribeira Belt remains unconstrained, and with debate concerning their depositional environment and tectonic setting. In this paper we present SHRIMP zircon U/Pb age constraints for one such problematic unit in the Ribeira Belt the lporanga Formation - and discuss the significance of this age with regards to the timing of Neoproterozoic glacial events in southeast Brazil. Using a felsic volcanic unit immediately under the lporanga Formation and granite cobbles from breccias in its basal parts a reconnaissance SHRIMP U/Pb zircon maximum depositional age of 580 Ma is assigned for the base of this unit. This age is marginally younger than the 625605 Ma ages for intrusions into the Lajeado and Ribeira subgroups, with which the lporanga Formation is in tectonic contact. This indicates that the Lajeado and Ribeira subgroups are not stratigraphically equivalent to the lporanga Formation, as thought previously by some workers. The maximum depositional age of 580 Ma also places a maximum time constraint on the tectonic juxtaposition of the lporanga Formation with other supracrustal units, and on the greenschist facies metamorphism and isoclinal folding that affected it. The potential glacial origin for the lporanga Formation, if correct, would place it in the late Ediacaran - provisionally equivalent to the Gaskiers glaciation. (c) 2007 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.

Groundwater favorability map using GIS multicriteria data analysis on crystalline terrain, Sao Paulo State, Brazil

This paper presents the groundwater favorability mapping on a fractured terrain in the eastern portion of Sao Paulo State, Brazil. Remote sensing, airborne geophysical data, photogeologic interpretation, geologic and geomorphologic maps and geographic information system (GIS) techniques have been used. The results of cross-tabulation between these maps and well yield data allowed groundwater prospective parameters in a fractured-bedrock aquifer. These prospective parameters are the base for the favorability analysis whose principle is based on the knowledge-driven method. The mutticriteria analysis (weighted linear combination) was carried out to give a groundwater favorabitity map, because the prospective parameters have different weights of importance and different classes of each parameter. The groundwater favorability map was tested by cross-tabulation with new well yield data and spring occurrence. The wells with the highest values of productivity, as well as all the springs occurrence are situated in the excellent and good favorabitity mapped areas. It shows good coherence between the prospective parameters and the well yield and the importance of GIS techniques for definition of target areas for detail study and wells location. (c) 2008 Elsevier B.V. All rights reserved.

Experimental micromorphology in Tierra del Fuego (Argentina): building a reference collection for the study of shell middens in cold climates

Commonly used in archaeological contexts, micromorphology did not see a parallel advance in the field of experimental archaeology. Drawing from early work conducted in the 1990`s on ethnohistoric sites in the Beagle Channel, we analyze a set of 25 thin sections taken from control features and experimental tests. The control features include animal pathways and environmental contexts (beach samples, forest litter, soils from the proximities of archaeological sites), while the experimental samples comprise anthropic structures, such as hearths, and valves of Mytilus edulis (the most important component of shell middens in the region) heated from 200 degrees C to 800 degrees C. Their micromorphological study constitutes a modern analogue to assist archaeologists studying site formation and ethnographical settings in cold climates, with particular emphasis on shell midden contexts. (c) 2010 Elsevier Ltd. All rights reserved.

Depicting the interplay between organisational tiers in the use of a national quality registry to develop quality of care in Sweden

BACKGROUND: With a pending need to identify potential means to improved quality of care, national quality registries (NQRs) are identified as a promising route. Yet, there is limited evidence with regards to what hinders and facilitates the NQR innovation, what signifies the contexts in which NQRs are applied and drive quality improvement. Supposedly, barriers and facilitators to NQR-driven quality improvement may be found in the healthcare context, in the politico-administrative context, as well as with an NQR itself. In this study, we investigated the potential variation with regards to if and how an NQR was applied by decision-makers and users in regions and clinical settings. The aim was to depict the interplay between the clinical and the politico-administrative tiers in the use of NQRs to develop quality of care, examining an established registry on stroke care as a case study. METHODS: We interviewed 44 individuals representing the clinical and the politico-administrative settings of 4 out of 21 regions strategically chosen for including stroke units representing a variety of outcomes in the NQR on stroke (Riksstroke) and a variety of settings. The transcribed interviews were analysed by applying The Consolidated Framework for Implementation Research (CFIR). RESULTS: In two regions, decision-makers and/or administrators had initiated healthcare process projects for stroke, engaging the health professionals in the local stroke units who contributed with, for example, local data from Riksstroke. The Riksstroke data was used for identifying improvement issues, for setting goals, and asserting that the stroke units achieved an equivalent standard of care and a certain level of quality of stroke care. Meanwhile, one region had more recently initiated such a project and the fourth region had no similar collaboration across tiers. Apart from these projects, there was limited joint communication across tiers and none that included all individuals and functions engaged in quality improvement with regards to stroke care. CONCLUSIONS: If NQRs are to provide for quality improvement and learning opportunities, advances must be made in the links between the structures and processes across all organisational tiers, including decision-makers, administrators and health professionals engaged in a particular healthcare process.

Peri-gondwanan permian correlations : the meso-tethyan margins

Correlations of the Permian sequences for sixteen regions of north eastern Gondwana during the Permian are presented in this review. These correlations are compared with Permian sequences of the Australian continent. Broad conclusions on palaeoclimatic change and tectonic events are summarised for six time intervals of the Permian Period.

The Asselian-Sakmarian-early Artinskian time interval indicates a change from cold to temperate depositional environments. Glacial deposits and low diversity Gondwanan marine faunas are succeeded by younger, warmer water, clastic and bioclastic sequences with moderately diverse marine faunas. Deposition of these sequences is occasionally associated with basaltic volcanism and initial rifting of the peripheral northern Gondwanan margin.

During the Late Artinskian-Kungurian (including Early Ufimian) time interval, climate amelioration occurred with the onset of carbonate deposition in several Cimmerian terranes. Basaltic volcanism in several terranes is indicative of significant rifting and the opening of the Meso-Tethys.

The Roadian (Late Ufimian) and Wordian-Capitanian (including Kazanian-Midian) time intervals were characterised by widespread, subtropical, marine carbonate depositional sequences. These occurred throughout the Cimmerian blocks as they drifted northward and on the more northerly parts of the Meso-Tethyan southern margin. These transgressive sequences may rest on significant unconformity surfaces. Equivalent carbonate units are known in the offshore and subsurface sequences of western Australia. Andesitic, convergent plate margin volcanism and volcaniclastic sequences are present in eastern Australia.

The Wuchiapingian time slice is characterised by widespread marine transgressions which extended into the north western basins of Australia.

The Changhsingian time slice is represented by relatively minor marine transgressive events in the Trans-Himalaya with the Selong section of Tibet being probably the most complete Permo-Triassic sequence for the southern margin of the Meso-Tethys.

Recovery after stroke : a qualitative perspective

The purpose of this study was to determine the impact of stroke on survivors of the condition and to identify their physical and psychosocial needs in rural and regional settings. Data were collected via focus group interviews with stroke survivors, carers and key informants. Data were managed using NUD*IST and analysed using a content analysis method identifying major themes related to the impact of living in the community after having a stroke. It was found that stroke survivors suffered severe physical and emotional effects. The findings also identified the vulnerability of this group and a lack of organised, on-going psychosocial and rehabilitative support. Recommendations are made to enhance the current management of stroke after the acute and subacute phases.

Straddling the pathway from paediatrician to mainstream health care : transition issues experienced in disability care

Objective: To identify the strengths and limitations of health care and related services provided to young adults with a disability during the period of transition from the care of a paediatrician to the mainstream health system.
Design: A descriptive design was used to address the study objectives.
Setting: Barwon and south-western region of Victoria.
Subjects: Twelve focus group discussions, with young adults with a disability, carers of young adults with a disability and health care service providers. Each focus group involved eight to 10 participants.
Results: The findings revealed a number of problems with the transition period. All participants acknowledged the supportive, coordinating role of the paediatrician. In the absence of this type of role, carers felt they lacked the knowledge and support to manage the adolescent with a disability. Communication problems between all service providers were identified as being problematical. The general lack of continuity of care between providers made it difficult for individuals to negotiate the transition period and increased the burden of care on carers.
Conclusion: There is a need for policy makers to address these transition problems and develop appropriate services that improve the situation for young adults with a disability and their carers.
What is already known: It is well documented that the transition period from paediatrician to adult health care services is problematic for the young adult with a disability and their carer. The difficulties experienced are attributed to poor communication between service providers and a lack of continuity of care.
What does this study add: This study provides insights from a number of different consumer and health care professionals' perspectives. The findings identify service delivery gaps and a need to develop health care services that could assist the young adult with the disability negotiate this transition from the paediatric services to mainstream health care services in rural and regional settings in Victoria.

Faster, richer, better: rapid appraisal techniques for the study of IS implementation in virtual communities

A major issue in Information Systems (IS) research is how to combine relevance and rigor (Benbasat and Zmud, 1999) and reduce the widening gap between research results and adoption (Dunn, 1994). Qualitative researchers make use of interpretivist methods to add richness and depth to their understanding of user problems. Interpretivist methods applied to IS implementations can thus result in research which communicates those findings more effectively. However standard interpretivist data-collection and analysis methods can be time-consuming and expensive. Findings based on these methods may be irrelevant to practitioners by the time they reach publication stage. A potential solution to this problem lies in Rapid Appraisal or RA, a qualitative appraisal methodology derived from rural development-related research. It offers IS researchers an additional technique for learning and acquiring relevant information in a limited period of time that  supplements current data collection and analysis techniques. RA adds value to the traditional approach for studying diffusion of innovation, supporting and extending the IS researcher’s qualitative ‘tool-kit’. In this paper we review an electronic gateway designed to facilitate the diffusion of an Australian government to business [G2B] export documentation system, EXDOC, which was first implemented with meat producers. RA techniques were used to collect and analyse data regarding the implementation of the first regional Electronic Trade Facilitation Center [ETFC] successfully established for Australian exporters in the horticulture sector. The findings from the original EXDOC implementation in the meat sector were confirmed and extended through this study. These include the importance of developing a governance structure that ensures all community members share the benefits of an implementation and the fact that virtual trading communities are attractive to users only if they add value to their business and extend standard ways of operating. Interactive interviews, part of the RA approach; also enabled us to expand our understanding of the way in which procedures developed in the course of implementing an electronic market represent value-adding opportunities for virtual trading communities. The paper has special relevance for researchers investigating adoption and diffusion issues experienced by small-scale producers with low exposure to technology in remote and rural settings.

Does a continence educational brochure promote health-seeking behavior?

OBJECTIVE: This study reviewed whether participants who were given a continence education package, which included a Continence Educational Brochure (CEB), and who indicated that they were bothered by incontinence symptoms changed health-seeking behaviors about their incontinence problem because of being given the brochure.
METHOD: This study used a descriptive and exploratory design. Participants were given the CEB and asked to read the information. They were also asked to complete a continence questionnaire and mail this back to the research team. Participants who indicated that they were bothered by a continence problem and consented to being interviewed were telephoned 2 to 3 months later. They were asked questions to determine their actions and progress in relation to managing their continence problem and whether the CEB had influenced their behavior.
SETTING AND SUBJECT: A total of 631 participants (352 females, 55.8%; 279 males, 44.2%) from 4 rural and regional settings in Victoria, Australia, participated. Of this sample, 111 participants (78 females, 70.3%; 33 males, 29.7%) who reported that they were bothered by a continence problem were interviewed 3 months after being given the CEB.
RESULTS: Two thirds of the total sample of participants (n = 111) sought help for their continence problem. Approximately 70.3% (n = 78) continued to have a continence problem. Of this group, 84.6% were still bothered by the continence problem and 65.4% had taken action to treat their incontinence. Forty-nine participants (44.1%) indicated that they had discussed the issue of bladder or bowel problems with someone directly because of this study or the information contained in the brochure. More than 94% of participants who remembered the CEB indicated that they believed the brochure would be helpful if given to other people.
CONCLUSIONS: These findings suggest that the CEB prompted individuals to discuss their continence problem and in fewer cases to seek professional help. Given these findings, distribution of a continence education package is advocated as a continence health promotion strategy.

To post or not to post : undergraduate student perceptions about participating in online discussions

Computer mediated conferencing (CMC) is now a common feature of blended learning environments where students learn in both face to face and online settings. While many teachers recognize the value of online discussions for learning, students appear to have different perspectives. Consequently, their participation in online discussions is often sporadic and not genuinely interactive. This paper examines these issues and provides student perspectives about participation in online discussions which arose from a case study in a conceptually difficult subject. Systems data indicated low numbers of posted messages. Student interviews provide some insights into this lack of participation, and identify the influence of the curriculum design, especially the nature of the learning activity, and its connection to other aspects of the course, for example, assessment and the regular class sessions. Other influential factors include the student’s ideas about learning, managing demands on their time and their acceptance of CMC. The paper also provides recommendations for improving participation in online discussions.

A simplified stroke rehabilitation assessment of movement instrument

Background and Purpose. An efficient, reliable, and valid instrument for assessing motor function in patients with stroke is needed by both clinicians and researchers. To improve administration efficiency, we applied the multidimensional Rasch model to the 30-item, 3-subscale Stroke Rehabilitation Assessment of Movement (STREAM) instrument to produce a concise, reliable, and valid instrument (simplified STREAM [S-STREAM]) for measuring motor function in patients with stroke. Subjects and Methods. The STREAM (consisting of 3 subscales: upper-limb movements, lower-limb movements, and mobility) was administered to 351 subjects with first stroke occurrence and a median time after stroke of 19.5 months. The unidimensionality of each subscale of the STREAM first was verified with unidimensional Rasch analysis. Each subscale of the STREAM then was simplified by deleting redundant items on the basis of expert opinion and the results of the Rasch analysis. The Rasch reliability of the S-STREAM and the concurrent validity of the S-STREAM with the STREAM were examined with multidimensional Rasch analysis and the intraclass correlation coefficient (ICC), respectively. Results. After deleting the items that did not fit the Rasch model, we found that the 8-item upper-limb movement subscale, the 9-item lower-limb movement subscale, and the 10-item mobility subscale assessed single, unidimensional upper-limb movements, lower-limb movements, and mobility, respectively. We selected 5 items from each subscale to construct the S-STREAM and found that the reliability of each subscale of the resulting simplified instrument was high (Rasch reliability coefficients of [greater than or equal to] .91). The agreement between the subscale scores (Rasch estimates) of the S-STREAM and those of the STREAM was excellent (ICC of [greater than or equal to] .99, with a lower limit for the 95% confidence interval of [greater than or equal to] .985), indicating good concurrent validity of the S-STREAM with the STREAM. Discussion and Conclusion. The S-STREAM demonstrates high Rasch reliability, unidimensionality, and concurrent validity with the STREAM in patients with stroke. Furthermore, the S-STREAM is efficient to administer, as it consists of only half the number of items in the original STREAM. Additional studies to examine other psychometric properties (eg, predictive validity and responsiveness) of the S-STREAM or its psychometric properties in various recovery stages after stroke are needed to further establish its utility in both clinical and research settings.

Equity-focused health impact assessment framework

Background to the Development of the Equity-Focused HIA Framework
The equity focused health impact assessment (EFHIA) framework arises out of a two year research project funded for the most part by the Australian Government’s Public Health Education Research Program (PHERP) Innovations Grants (Round 2) scheme. This project had as its primary objective the development of a framework for health inequalities impact assessment, subsequently renamed equity focused health impact assessment. A partnership between the University of Newcastle, Deakin University and the University of New South Wales (the Project Management Steering Committee) received the funding and the Australasian Collaboration for Health Equity Impact Assessment (ACHEIA) was formed to undertake appropriate background research and to develop, pilot test, modify and disseminate the framework. The work commenced in September 2002 and concluded in October 2004. Part of the funding included a capacity building workshop in August 2004. ACT Health and the Division of Medicine at the John Hunter Hospital, Newcastle, also provided financial support for the project. The August 2004 Workshop was supported by NSW Health. All participants and organisations involved in the project gave extensive in-kind support.
The aims of the workshop were to bring together an international collaboration of multidisciplinary investigators, public health experts, and key senior health managers working in national, state and local settings, to inform the further development of the framework and to provide training in its application. The initial goals of the project were to work collaboratively to develop a strategic framework to assess the health inequalities of public health-related policies, plans, strategies, decisions, programs and services. The EFHIA framework as presented at the August workshop was developed through:
1. an extensive review of the relevant literature
2. formal and informal consultation with members of ACHEIA (the international
reference group), members of the Project Management Steering Committee and
other relevant experts; and
3. testing of the draft EFHIA framework with the 5 case study partners – who applied the draft framework in a range of health settings (see
Acknowledgements).
The result of this work has been the development of an equity focused health impact assessment framework that can be used to determine the unanticipated and systemic health inequities that may exist within the decision making processes or activities of a range of organisations and sectors. The EFHIA framework provides one approach that can be used to assist decision makers to put equity and health on their agenda in a more obvious and systematic way. The framework represents a ‘moment in time’ rather than a definitive statement or ‘toolkit’ on the best way to proceed. Further practice, refinement and adjustment will be needed over many years to consolidate both HIA and EFHIA. As well as this guide to the framework, additional outputs from the project team include:
- A literature review
- A position paper
- A report on the five case studies
- An evaluation report.
With the consent of the Australian Government, a monograph will be made available to workshop participants at the end of October which contains the framework and the appropriate background papers.

A holistic model of corporate governance - a new research framework

Purpose – The purpose of this paper is to propose a new model of corporate governance that is holistic – incorporating internal and macro perspectives across legal, regulatory, sociological, ethical, human resource management, behavioural and corporate strategic frameworks. Researchers have signalled the need for “new theoretical perspectives and new models of governance” due to a dearth of research that is context-driven, empirical, and encapsulating the full spectrum of reasons and actions contributing to corporate crises.

Design/methodology/approach – The approach consists of theory building by reviewing the literature and examining the gaps and limitations.

Findings – The proposed model is a distinctive contribution to theory and practice in three ways. First, it integrates the firm-specific, micro factors with the country-specific, macro factors to illustrate the holistic nature of corporate governance. Second, shareholders and stakeholders are shown to be only one component of the model. Third, it veers away from singular approaches, to dealing with corporate governance using a multi-disciplinary perspective. The paper argues that such a holistic and integrated view is a necessity for understanding governance systems.

Research limitations/implications – The challenge is to operationalize the model and test it empirically.

Practical implications – The model is instructive and of use for practitioners in attempting to understand, explain and develop governance models that are appropriate to their national and industry settings.

Originality/value – This paper argues that narrow-based models are limited in their approach and in a sound and integrative review of the up-to-date literature contributes to theory-building on corporate governance.

Scale matters : the need for a Bipolar Depression Rating Scale (BDRS)

Objective: To briefly review the clinical and biological distinctions between unipolar and bipolar depression critiquing in particular currently available depression rating scales and discuss the need for a new observer-rated scale tailored to bipolar depression.

Method: Relevant literature pertaining to the symptomatic differences between bipolar disorder and unipolar disorder as well as their measurement using existing assessment scales was identified by computerized searches and reviews of scientific journals known to the authors.

Results: Bipolar depression is distinct from unipolar depression in terms of phenomenology and clinical characteristics. These distinguishing features can be used to identify bipolarity in patients that present with recurrent depressive episodes. This is important because current self-report and observer-rated scales are optimized for unipolar depression, and hence limited in their ability to accurately assess bipolar depression.

Conclusion: The development of a specific bipolar depression rating scale will improve the assessment of bipolar depression in both research and clinical settings and assist the development of better treatments and interventions.

Educating for the future : technological advantages?

Educating students for the future involves providing them with skills to cope with technological change. Schools and teachers have been adapting their practices in mathematics and science to incorporate information and communication technology (ICT) as a routine aspect of learning. However, recent research indicates that not all students have equal access to the technologies they need. A number of reasons are investigated: the location of the schools (regional and rural settings), the capabilities of the teachers and access by staff and students to high quality resources. This paper presents the findings of this research.