Using river-scale experiments to inform variable releases from large dams: a case study of emergent adaptive management

2010 ◽  
Vol 61 (7) ◽  
pp. 786 ◽  
Author(s):  
R. J. Watts ◽  
D. S. Ryder ◽  
C. Allan ◽  
S. Commens
Keyword(s):  
Water Column ◽  
Adaptive Management ◽  
A Priori ◽  
Flow Variability ◽  
Institutional Conditions ◽  
Key Stakeholders ◽  
Murray Darling Basin ◽  
Algal Biofilms ◽  
Over Time

Case studies of successful adaptive management generally focus on examples that have frameworks for adaptive management embedded from project conception. In contrast, this paper outlines an example of emergent adaptive management. We describe an approach whereby targeted research and collaboration among stakeholders assisted learning, and ultimately the development of interim operational guidelines for increased within-channel flow variability in the highly regulated Mitta Mitta River, which is managed as part of the River Murray System in the Murray–Darling Basin, Australia. Environmental monitoring of four variable flow trials evaluated the response of water column microbial activity, benthic and water column metabolism, the structure and composition of algal biofilms, and benthic macroinvertebrates to increased flow variability created by varying the release from Dartmouth Reservoir. Each trial built upon lessons from previous trials, with collaboration among key stakeholders occurring before, during and after each trial. Institutional conditions encouraged a shift to adaptive management over time that helped to achieve environmental, social and economic objectives downstream of the dam. A key lesson is that adaptive management does not have to be specified a priori, but can emerge within a trusting relationship between stakeholders as long as they are willing and able to change their operational paradigm.

Overcoming Barriers to Clinical Partnerships

2018 ◽  
pp. 142-165
Author(s):  
Derek Decker ◽  
Jennifer Roth ◽  
Donna Cooner
Keyword(s):  
Teacher Candidates ◽  
Teacher Educators ◽  
Professional Development School ◽  
A Priori ◽  
Future Research ◽  
Preparation Programs ◽  
Educator Preparation ◽  
School Based ◽  
Key Stakeholders

The Council for the Accreditation of Educator Preparation (CAEP) set forth a set of new standards that demand excellence to produce educators who raise P-12 student achievement. This pilot multi-case study describes perspectives and across-case themes of the lived experiences of national key stakeholders in educator preparation programs and their professional development school (PDS) partnership system. CAEP's five guiding principles of Standard 2: Clinical Partnerships and Practice as a priori codes describe experiences and perspectives of three key stakeholders of the university's clinical partnership. The three key stakeholders include (1) university-based teacher educators, (2) school-based teacher educators, and (3) teacher candidates. The researchers discuss results and implications for practice and offer avenues for future research.

When Culturally Significant Songs are Decontextualised: The Initiation Song Somagwaza, A Case Study

2018 ◽  
Vol 28 (2) ◽  
Author(s):  
T Dowling ◽  
Somikazi Deyi ◽  
Anele Gobodwana
Keyword(s):  
Qualitative Research ◽  
Comparative Method ◽  
Popular Song ◽  
Focus Group Discussions ◽  
Group Discussions ◽  
Ritual Music ◽  
Constant Comparative Method ◽  
Small Focus ◽  
Over Time

While there have been a number of studies on the decontextualisation and secularisation of traditional ritual music in America, Taiwan and other parts of the globe, very little has been written on the processes and transformations that South Africa’s indigenous ceremonial songs go through over time. This study was prompted by the authors’ interest in, and engagement with the Xhosa initiation song Somagwaza, which has been re-imagined as a popular song, but has also purportedly found its way into other religious spaces. In this article, we attempted to investigate the extent to which the song Somagwaza is still associated with the Xhosa initiation ritual and to analyse evidence of it being decontextualised and secularised in contemporary South Africa. Our methodology included an examination of the various academic treatments of the song, an analysis of the lyrics of a popular song, bearing the same name, holding small focus group discussions, and distributing questionnaires to speakers of isiXhosa on the topic of the song. The data gathered were analysed using the constant comparative method of analysing qualitative research.

Case study 2

2018 ◽  
Author(s):  
Ewan Ferlie ◽  
Sue Dopson ◽  
Chris Bennett ◽  
Michael D. Fischer ◽  
Jean Ledger ◽  
...  
Keyword(s):  
Civil Society ◽  
Political Science ◽  
Think Tanks ◽  
Science Literature ◽  
Informal Networks ◽  
Think Tank ◽  
Significant Potential ◽  
Key Stakeholders

This chapter analyses the role of think tanks in generating a distinctive mode of policy knowledge, pragmatically orientated to inform and shape issues of importance to civil society. Drawing on political science literature, we argue that think tanks exploit niche areas of expertise and influence to actively mobilize policy analyses and recommendations across diverse stakeholders. Through our exploratory mapping of think tanks, geographically concentrated within London, we characterize their influence as significantly boosting knowledge intensity across the regional ecosystem. In particular, we study the empirical case of one London-based think tank which powerfully mobilized policy knowledge through its formal and informal networks to build influential expert consensus amongst key stakeholders. We conclude that such organizations act as key knowledge producers and mobilizers, with significant potential to influence policy discourses and implementation.

Thinning in mature eastern white pine: 43-year case study

2002 ◽  
Vol 78 (4) ◽  
pp. 539-549 ◽  
Author(s):  
Paul D Anderson ◽  
John C Zasada ◽  
Glen W Erickson ◽  
Zigmond A Zasada
Keyword(s):  
Genetic Diversity ◽  
Dna Analysis ◽  
Large Diameter ◽  
White Pine ◽  
Thinning Intensity ◽  
Pine Regeneration ◽  
Volume Production ◽  
Pine Stands ◽  
Over Time

A white pine (Pinus strobus L.) stand at the western margin of the species range, approximately 125 years of age at present, was thinned in 1953 from 33.5 m2 ha-1 to target residual basal areas of 18.4, 23.0, 27.5, and 32.1 m2 ha-1 . Repeated measurement over the following 43-years indicated that the greatest total volume production and the greatest number of large diameter trees occurred in the unit of highest residual density. Over time, the distribution of stems was predominantly random although mortality between 1979 and 1996 resulted in a tendency for clumping in the 23.0 and 27.5 m2 ha-1 treatments. DNA analysis indicated that thinning intensity had little effect on the genetic diversity of residual white pine. This study suggests that mature white pine stands in northern Minnesota may be managed at relatively high densities without loss of productivity. However, regardless of overstory density, there was little or no white pine regeneration occurring in this stand. Key words: thinning, growth, genetic diversity, molecular markers, spatial pattern, regeneration

scholarly journals P34 Characteristics, diagnosis and management of Cushing’s disease - A systematic review and meta-analysis

BJS Open ◽  
2021 ◽  
Vol 5 (Supplement_1) ◽  
Author(s):  
Chan Hee Koh ◽  
Danyal Z Khan ◽  
Ronneil Digpal ◽  
Hugo Layard Horsfall ◽  
Hani J Marcus ◽  
...  
Keyword(s):  
Clinical Practice ◽  
Cushing’S Disease ◽  
Meta Analysis ◽  
A Priori ◽  
Pituitary Surgery ◽  
Serum Cortisol ◽  
Cushing's Disease ◽  
Diagnosis And Management ◽  
Over Time

Abstract Introduction The clinical practice and research in the diagnosis and management of Cushing’s disease remains heterogeneous and challenging to this day. We sought to establish the characteristics of Cushing’s disease, and the trends in diagnosis, management and reporting in this field. Methods Searches of PubMed and Embase were conducted. Study protocol was registered a-priori. Random-effects analyses were conducted to establish numerical estimates. Results Our screening returned 159 papers. The average age of adult patients with Cushing’s disease was 39.3, and 13.6 for children. The male:female ratio was 1:3. 8% of patients had undergone previous transsphenoidal resection. The ratio of macroadenomas: microadenomas:imaging-undetectable adenomas was 18:53:29. The most commonly reported preoperative biochemical investigations were serum cortisol (average 26.4µg/dL) and ACTH (77.5pg/dL). Postoperative cortisol was most frequently used to define remission (74.8%), most commonly with threshold of 5µg/dL (44.8%). Average remission rates were 77.8% with recurrence rate of 13.9%. Median follow-up was 38 months. Majority of papers reported age (81.9%) and sex (79.4%). Only 56.6% reported whether their patients had previous pituitary surgery. 45.3% reported whether their adenomas were macroadenoma, microadenoma or undetectable. Only 24.1% reported preoperative cortisol, and this did not improve over time. 60.4% reported numerical thresholds for cortisol in defining remission, and this improved significantly over time (p = 0.004). Visual inspection of bubbleplots showed increasing preference for threshold of 5µg/dL. 70.4% reported the length of follow up. Conclusion We quantified the characteristics of Cushing’s disease, and analysed the trends in investigation and reporting. This review may help to inform future efforts in forming guidelines for research and clinical practice.

scholarly journals Policy Strategies to Revive Rural Land in Peri-Metropolitan Towns: Resource Identification, Capitalization, and Financialization

Land ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 132
Author(s):  
Wei Li ◽  
Zhanwei Zhang ◽  
Yang Zhou
Keyword(s):  
Rural Areas ◽  
Master Planning ◽  
Leading Role ◽  
Multifunctional Land Use ◽  
Key Stakeholders ◽  
Resource Identification ◽  
The Government ◽  
Interpretative Approach ◽  
The Town

Previous planning for rural revival in towns has emphasized construction and government-led policies. However, we argue that the dilemmas of peri-metropolitan rural areas, such as Desakota in China, are far more complex faced with rural super village and hollowed village transformations. Rural revival planning needs to coordinate with the development of urbanized and rural areas towards multifunctional goals and plans as a whole. Therefore, we selected the town master plan of Lijia, a typical peri-metropolitan village in China, as a case study. Through a historical–interpretative approach involving analysis of planning policies, questionnaires, and in-depth interviews with the key stakeholders involved, we structured the process and mechanism of rural revival in Lijia into three phases: resource identification, capitalization, and financialization. In different phases, different stakeholders adopt different roles. The government takes a leading role in resource identification and capitalization, while firms take a leading role in the process of financialization. “Market-dominant and government-guided” planning stimulates villagers to participate in rural revival. We highlight the importance of multifunctional land-use in terms of rural revival in the master planning of peri-metropolitan villages and provide a practical reference for uniting multiple stakeholders, including governments, firms, and villagers.

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