scholarly journals Effects of thermal conditioning on the performance of Pocillopora acuta adult coral colonies and their offspring

Coral Reefs ◽  
2021 ◽  
Author(s):  
Crystal J. McRae ◽  
Wen-Bin Huang ◽  
Tung-Yung Fan ◽  
Isabelle M. Côté
Keyword(s):  
Nuclear Power ◽  
Direct Evidence ◽  
Lunar Cycle ◽  
Ocean Warming ◽  
Active Management ◽  
Management Approach ◽  
Offspring Performance ◽  
Lower Maximum ◽  
Management Techniques ◽  
Reproductive Cycles

AbstractOcean warming induced by climate change is the greatest threat to the persistence of coral reefs globally. Given the current rate of ocean warming, there may not be sufficient time for natural acclimation or adaptation by corals. This urgency has led to the exploration of active management techniques aimed at enhancing thermal tolerance in corals. Here, we test the capacity for transgenerational acclimation in the reef-building coral Pocillopora acuta as a means of increasing offspring performance in warmer waters. We exposed coral colonies from a reef influenced by intermittent upwelling and constant warm-water effluent from a nuclear power plant to temperatures that matched (26 °C) or exceeded (29.5 °C) season-specific mean temperatures for three reproductive cycles; offspring were allowed to settle and grow at both temperatures. Heated colonies reproduced significantly earlier in the lunar cycle and produced fewer and smaller planulae. Recruitment was lower at the heated recruitment temperature regardless of parent treatment. Recruit survival did not differ based on parent or recruitment temperature. Recruits from heated parents were smaller and had lower maximum quantum yield (Fv/Fm), a measurement of symbiont photochemical performance. We found no direct evidence that thermal conditioning of adult P. acuta corals improves offspring performance in warmer water; however, chronic exposure of parent colonies to warmer temperatures at the source reef site may have limited transgenerational acclimation capacity. The extent to which coral response to this active management approach might vary across species and sites remains unclear and merits further investigation.

Treatment of Polydipsia Using a Contingency Management Procedure Incorporating a Self-Management Approach: A Single Case Study

1993 ◽  
Vol 21 (3) ◽  
pp. 275-279 ◽  
Author(s):  
John Turnbull
Keyword(s):  
Single Case ◽  
Contingency Management ◽  
Research Literature ◽  
Self Management ◽  
Pharmacological Intervention ◽  
Management Approach ◽  
Management Procedure ◽  
Management Techniques ◽  
One Year

Polydipsia is a disorder that has received little attention in the research literature. Treatment has been mainly confined to medical or pharmacological intervention. Few studies have reported the use of contingency management techniques and none have sought to encourage self-management. This study shows how such a procedure brought about a significant change in rates of water drinking in a thirty-one year old man with a mild learning disability.

Path to Success

2013 ◽  
pp. 122-143
Author(s):  
Ahu Genis-Gruber ◽  
Ramazan Aktas
Keyword(s):  
Management Strategies ◽  
Organizational Structures ◽  
International Management ◽  
Marketing Strategies ◽  
Management Approach ◽  
Current Case ◽  
Cultural Management ◽  
The World ◽  
Management Techniques ◽  
Cross Cultural Management

The current case examines the management strategies of a leading furniture company that started off as a small business and rapidly expanded globally. The success the company has achieved through its innovative marketing strategies and use of international management techniques is presented. The case highlights the company’s flexibility in adapting its organizational structures to the nature of the market in different countries, and its reliance on a cross-cultural management approach to marketing in order to increase product acceptance by consumers across the world.

scholarly journals Salinity Management in the Murray–Darling Basin, Australia

Water ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1829 ◽  
Author(s):  
Barry Hart ◽  
Glen Walker ◽  
Asitha Katupitiya ◽  
Jane Doolan
Keyword(s):  
Land Surface ◽  
Success Factors ◽  
Management Strategies ◽  
Active Management ◽  
Management Approach ◽  
Governance System ◽  
European Settlement ◽  
Murray Darling Basin ◽  
The Future ◽  
Salinity Management

The southern Murray–Darling Basin (MDB) is particularly vulnerable to salinity problems. Much of the Basin’s landscape and underlying groundwater is naturally saline with groundwater not being suitable for human or irrigation use. Since European settlement in the early 1800s, two actions—the clearance of deep-rooted native vegetation for dryland agriculture and the development of irrigation systems on the Riverine Plains and Mallee region—have resulted in more water now entering the groundwater systems, resulting in mobilization of the salt to the land surface and to rivers. While salinity has been a known issue since the 1960s, it was only in the mid-1980s that was recognized as one of the most significant environmental and economic challenges facing the MDB. Concerted and cooperative action since 1988 by the Commonwealth and Basin state governments under a salinity management approach implemented over the past 30 years has resulted in salinity now being largely under control, but still requiring on-going active management into the future. The approach has involved the development of three consecutive salinity strategies governing actions from 1988 to 2000, from 2001 to 2015, and the most recent from 2016 to 2030. The basis of the approach and all three strategies is an innovative, world-leading salinity management framework consisting of: An agreed salinity target; joint works and measures to reduce salt entering the rivers; and an agreed accountability and governance system consisting of a system of salinity credits to offset debits, a robust and agreed method to quantify the credits and debits, and a salinity register to keep track of credits and debits. This paper first provides background to the salinity issue in the MDB, then reviews the three salinity management strategies, the various actions that have been implemented through these strategies to control salinity, and the role of the recent Basin Plan in salinity management. We then discuss the future of salinity in the MDB given that climate change is forecast to lead to a hotter, drier and more variable climate (particularly more frequent droughts), and that increased salt loads to the River Murray are predicted to come from the lower reaches of the Mallee region. Finally, we identify the key success factors of the program.

scholarly journals How efficient is the Johannesburg Stock Exchange really?

2018 ◽  
Vol 21 (1) ◽  
Author(s):  
André Heymans ◽  
Leonard Santana
Keyword(s):  
Stock Exchange ◽  
Weak Form ◽  
Active Management ◽  
Sign Test ◽  
Management Approach ◽  
Ratio Test ◽  
Variance Ratio ◽  
Johannesburg Stock Exchange ◽  
Portfolio Managers ◽  
The Impact

Background: There are various studies that confirm the efficiency of the Johannesburg Stock Exchange (JSE), implying that there are no opportunities for active portfolio managers to earn excess returns over the long run.Aim: The aim of the research is to prove that the sub-indices on the JSE go through cycles of efficiency and inefficiency even though the JSE as a whole might be considered informationally efficient.Setting: Although the JSE as a whole can be considered to be weak-form efficient, portfolio managers are not bound to investing in large liquid stocks alone. Many aggressive funds allow managers to also allocate a portion of their portfolio to smaller stocks. This has implications when considering the efficiency of the stocks being selected.Methods: Given the impact efficiency has on portfolio selection, we test for the adaptive market hypothesis using a representative sample of stock indices by means of the automatic variance ratio test, the Chow–Denning joint variance ratio and the joint sign test on the JSE.Results: Our results confirm that some of the smaller, and in some instances younger, indices are not always as efficient as the all share index, thus allowing portfolio managers with an active management approach some opportunities to profit from informational inefficiencies in the market.Conclusion: The practice of active management by portfolio managers in the South African market seems to defy logic if one considers the fact that the JSE as a whole is at the very least weak-form efficient. By proving that some of the sub-indices that make up the all share index are inefficient most of the time, this article shows that the phenomenon of active portfolio managers is less of a surprise.

Improving the Value of Excavations Through Indirect Inspection and Engineering Assessments

2012 ◽  
Author(s):  
Stephen F. Biagiotti ◽  
Eric Houston ◽  
George Licina ◽  
Dilip Dedhia
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Life Cycle Management ◽  
Control Measures ◽  
Management Approach ◽  
Buried Pipe ◽  
Risk Prioritization ◽  
Integrity Management ◽  
External Corrosion ◽  
Assurance Process

U.S. nuclear power plants are implementing a life cycle management approach to underground and buried pipe integrity management. The last few years have been spent gathering information about these systems and performing relative risk ranking analyses. The next stage of this process was to further refine the risk prioritization by gathering additional indirect performance information to qualitatively characterize the effectiveness of existing corrosion control measures, thereby refining the prioritization of locations with highest potential for corrosion activity. Once these locations are better understood, strategic quantitative Direct Examination techniques (i.e., NDE) can be used to inspect and then evaluate the fitness for service and remaining life. This paper provides a brief review of the increased interest in performing excavations at nuclear sites and will present corrosion engineering techniques that uniquely evaluate both the internal and external corrosion threats using ACCORDION© and APEC©, as well as an overall strategy designed to help maximize the value of each excavation. Application of the systematic methodology presented as part of a NEI 09-14 Reasonable Assurance process [Ref 1] can increase a site’s likelihood for the proactive detection of corrosion degradation — which is a key objective for the assurance of structural and/or leakage integrity of buried piping.

scholarly journals Categorical Stigma and Firm Disengagement: Nuclear Power Generation in the United States, 1970-2000

2021 ◽  
Author(s):  
Alessandro Piazza ◽  
Fabrizio Perretti
Keyword(s):  
United States ◽  
Impression Management ◽  
Nuclear Power ◽  
Nuclear Reactor ◽  
Empirical Support ◽  
The United States ◽  
Organizational Responses ◽  
The Face ◽  
The Media ◽  
Management Techniques

How do organizations react to stakeholder disapproval of a category to which they belong? In this paper, we draw on the categorization, stigma, and identity literatures in building a theory to predict whether firms that are involved in stigmatized activities will choose to reduce or terminate their involvement in them, as opposed to resorting to less drastic measures such as defensive practice adoption or impression management techniques. Conceptualizing groups of organizations involved in such contentious practices as stigmatized categories in the eyes of an audience, we argue that organizational responses rest on three elements: (1) the intensity of stigma targeting the category, (2) the media exposure of the category, and (3) the extent to which an organization is a member of the category. A quantitative study of proposed new nuclear reactor units in the United States between 1970 and 2000, in the face of mounting opposition to atomic power, provides empirical support for our claims.

scholarly journals Teknik Pengelolaan Tenaga: Kajian dalam Koreografi Tunggal

2013 ◽  
Vol 11 (1) ◽  
Author(s):  
Sarjiwo
Keyword(s):  
Power Management ◽  
Planning Process ◽  
Breathing Pattern ◽  
Descriptive Analysis ◽  
Structured Interview ◽  
The Body ◽  
Management Approach ◽  
Interview Guide ◽  
Management Techniques

Power Management Techniques: A Study In Choreography Single Dance. This study aims to reveal thepower management techniques in a single choreographic works (solo dance). Data collection techniques used byobservation and interviews. Observations made by looking at and following the staging of activities undertakenby informants/interviewers. While, the interviews were conducted in a structured interview guide that has beenprepared to crawl processed data so that it can be more focused and directed. Collected data were analyzed byqualitative descriptive analysis techniques with management approach. According to this research it can beconcluded that, in order to make good quality of choreography character and good quality of dancer characteristicrequired planning process by conducting exercises diligently. Exercise is necessary for organisms of the body to becapable to performing its function as a medium for optimal expression of dance. The pattern of organization ormotion compotition could not be separated from the planning process that has been made. Each choreographerhas a different way with each other. Activities of implementation related to the power management at the timechoreography displayed, related to the ability of the dancers on the power control, regulate breathing pattern byplacing a breathing pattern as part of the choreography, and management of emotions that are not easily infl uencedby the presence of spectators. Evaluation is required at the time of the cultivation process and after the choreographyform was displayed. Evaluation is needed so that the creation that has been produced not quit on the spot.

scholarly journals Role of Prognostics in Support of Integrated Risk-based Engineering in Nuclear Power Plant Safety

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
P.V. Varde ◽  
Michael G. Pecht
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Structural Reliability ◽  
Health Management ◽  
Performance Criteria ◽  
Management Approach ◽  
Prognostics And Health Management ◽  
Integrated Risk

There is a growing trend in applying a prognostics and health management approach to engineering systems in general and space and aviation systems in particular. This paper reviews the role of prognostics and health management approach in support of integrated risk-based applications to nuclear power plants, like risk-based in-service inspection, technical specification optimization, maintenance optimization, etc. The review involves a survey of the state-of-art technologies in prognostics and health management and an exploration of its role in support of integrated risk-based engineering and how the technology can be adopted to realize enhanced safety and operational performance. An integrated risk-based engineering framework for nuclear power plants has been proposed, where probabilistic risk assessment plays the role of identification, prioritization and optimization of systems, structures, and components, while deterministic assessment is performed using a prognostics and health management approach. Keeping in view the requirements of structural reliability assessment, the paper also proposes essential features of a ‘Mechanics-of-Failure’ approach in support of integrated risk-based engineering. The performance criteria used in prognostics and health management has been adopted to meet requirements of risk-based applications.

Sign in / Sign up

Export Citation Format

Share Document