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Performance Goals (performance + goal)
Selected AbstractsSafety and effectiveness of the INVATEC MO.MA® proximal cerebral protection device during carotid artery stenting: Results from the ARMOUR pivotal trial,CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS, Issue 1 2010Gary M. Ansel MD Abstract Objective: The multicenter ARMOUR (ProximAl PRotection with the MO.MA Device DUring CaRotid Stenting) trial evaluated the 30-day safety and effectiveness of the MO.MA® Proximal Cerebral Protection Device (Invatec, Roncadelle, Italy) utilized to treat high surgical risk patients undergoing carotid artery stenting (CAS). Background: Distal embolic protection devices (EPD) have been traditionally utilized during CAS. The MO.MA device acts as a balloon occlusion "endovascular clamping" system to achieve cerebral protection prior to crossing the carotid stenosis. Methods: This prospective registry enrolled 262 subjects, 37 roll-in and 225 pivotal subjects evaluated with intention to treat (ITT) from September 2007 to February 2009. Subjects underwent CAS using the MO.MA device. The primary endpoint, myocardial infarction, stroke, or death through 30 days (30-day major adverse cardiac and cerebrovascular events [MACCE]) was compared to a performance goal of 13% derived from trials utilizing distal EPD. Results: For the ITT population, the mean age was 74.7 years with 66.7% of the cohort being male. Symptomatic patients comprised 15.1% and 28.9% were octogenarians. Device success was 98.2% and procedural success was 93.2%. The 30-day MACCE rate was 2.7% [95% CI (1.0,5.8%)] with a 30-day major stroke rate of 0.9%. No symptomatic patient suffered a stroke during this trial. Conclusions: The ARMOUR trial demonstrated that the MO.MA® Proximal Cerebral Protection Device is safe and effective for high surgical risk patients undergoing CAS. The absence of stroke in symptomatic patients is the lowest rate reported in any independently adjudicated prospective multicenter registry trial to date. © 2010 Wiley-Liss, Inc. [source] Undulatory fish swimming: from muscles to flowFISH AND FISHERIES, Issue 2 2006Ulrike K. Müller Abstract Undulatory swimming is employed by many fish for routine swimming and extended sprints. In this biomechanical review, we address two questions: (i) how the fish's axial muscles power swimming; and (ii) how the fish's body and fins generate thrust. Fish have adapted the morphology of their axial musculature for high power output and efficiency. All but the superficial muscle fibres are arranged along curved trajectories, and the myomeres form nested cones. Two conflicting performance goals shape the fibre trajectories of the axial muscles. Maximum power output requires that all fibres contract uniformly. In a bending fish, uniform contraction in a single myomere can be ensured by curved fibre trajectories. However, uniform strain is only desirable if all muscle fibres have the same contractile properties. The fish needs several muscle-fibre types that generate maximum power at different contraction speeds to ensure effective muscle power generation across a range of swimming speeds. Consequently, these different muscle-fibre types are better served by non-uniform contractions. High power output at a range of swimming speeds requires that muscle fibres with the same contractile properties contract uniformly. The ensuing helical fibre trajectories require cone-shaped myomeres to reduce wasteful internal deformation of the entire muscle when it contracts. It can be shown that the cone-shaped myomeres of fish can be explained by two design criteria: uniform contraction (uniform strain hypothesis) and minimal internal deformation (mechanical stability hypothesis). So far, only the latter hypothesis has found strong support. The contracting muscle causes the fish body to undulate. These body undulations interact with the surrounding water to generate thrust. The resulting flow behind the swimming fish forms vortex rings, whose arrangement reflects the fish's swimming performance. Anguilliform swimmers shed individual vortex rings during steady swimming. Carangiform swimmers shed a connected chain of vortex rings. The currently available sections through the total flow fields are often not an honest representation of the total momentum in the water , the wake of carangiform swimmers shows a net backward momentum without the fish accelerating , suggesting that our current picture of the generated flow is incomplete. To accelerate, undulatory swimmers decrease the angle of the vortex rings with the mean path of motion, which is consistent with an increased rate of backward momentum transfer. Carangiform swimmers also enlarge their vortex rings to accelerate and to swim at a higher speed, while eel, which are anguilliform swimmers, shed stronger vortex rings. [source] Effect of perceived conflict among multiple performance goals and goal difficulty on task performanceACCOUNTING & FINANCE, Issue 2 2007Mandy M. Cheng M40; M41 Abstract Contemporary performance measurement systems, such as the balanced scorecard, often advocate the use of an array of financial and non-financial measures. Despite many claimed advantages for these systems, recent research shows that the inclusion of multiple performance measures sometimes has undesirable effects. The present study examines one of the potential problems of implementing these systems; namely, the impact of perceived goal conflict on task performance. Using survey data from employees working in multiple call centres in a telecommunication company, we find that perceived goal difficulty increases perceived goal conflict. Additionally, perceived goal difficulty also has a negative, indirect effect of task performance, through the mediating role of perceived goal conflict. Our results have important implications for both the research literature and the designers of performance measurement systems. [source] CORPORATE GOVERNANCE, ETHICS, AND ORGANIZATIONAL ARCHITECTUREJOURNAL OF APPLIED CORPORATE FINANCE, Issue 3 2003James A. Brickley Effective corporate leadership involves more than developing a good strategic plan and setting high ethical standards. It also means coming up with an organizational design that encourages the company's managers and employees to carry out its business plan and maintain its ethical standards. In this article, the authors use the term organizational architecture to refer to three key elements of a company's design: ,the assignment of decision-making authority,who gets to make what decisions; ,performance evaluation,the key measures of performance for evaluating business units and individual employees; and ,compensation structure,how employees are rewarded for meeting performance goals. In well-designed companies, each of these elements is mutually reinforcing and supportive of the company's overall business strategy. Decision-making authority is assigned to managers and employees who have the knowledge and experience needed to make the best investment and operating decisions. And to ensure that those decision makers have the incentive as well as the knowledge to make the best decisions, the corporate systems used to evaluate and reward their performance are based on measures that are linked as directly as possible to the corporate goal of creating value. Some of the most popular management techniques of the past two decades, such as reengineering, TQM, and the Balanced Scorecard, have often had disappointing results because they address only one or two elements of organizational architecture, leaving the overall structure out of balance. What's more, a flawed organizational design can lead to far worse than missed opportunities to create value. As the authors note, the recent corporate scandals involved not just improper behavior by senior executives, but corporate structures that, far from safeguarding against such behavior, in some ways encouraged it. In the case of Enron, for example, top management's near-total focus on boosting reported earnings (a questionable corporate goal to begin with) combined with decentralized decision making and loose oversight at all levels of the company to produce an enormously risky high-leverage strategy that ended up bringing down the firm. [source] Examining Situationally Induced State Goal Orientation Effects on Task Perceptions, Performance, and Satisfaction: A Two-Dimensional Conceptualization,JOURNAL OF APPLIED SOCIAL PSYCHOLOGY, Issue 2 2008Debra Steele-Johnson We examined the longitudinal effects of situationally induced 2-dimensional state goal orientations (i.e., achievement goals) on perceptions, performance, and satisfaction. Results (N = 268) indicated that high state learning cues led to higher perceived challenge and, for higher ability individuals, greater performance gains. Further, high state performance cues led to higher perceived effort. However, results revealed that state learning and performance effects were more complex than expected. State learning effects on challenge and state performance effects on effort were both stronger with other cues absent. Additionally, increasingly beneficial state learning cue effects were stronger for higher ability individuals. Thus, results provided support that state learning and performance goals are separate dimensions, and their interactive effects need further examination. [source] Reading for different goals: the interplay of EFL college students' multiple goals, reading strategy use and reading comprehensionJOURNAL OF RESEARCH IN READING, Issue 2 2008Tung-hsien He This study explored the effects of achievement goals on English as a foreign language (EFL) college students' reading strategy use and reading comprehension from the perspective of multiple goals. Fifty-seven participants verbalised their thoughts while reading an English expository essay. They also completed assessments on their reading goal profiles and reading proficiency. The results of stimulated recall indicated that participants with profiles characterised by strong mastery and strong performance goals used intra-sentential, inter-paragraph, intra-paragraph and monitoring/evaluating strategies significantly more frequently than did their counterparts. In contrast, participants with profiles characterised by strong mastery but weak performance goals utilised these strategies more often than those participants with weak mastery but strong performance goals. The strong-mastery,strong-performance goal profile served as a significant, positive predictor for degrees of reading comprehension. In line with these findings, suggestions for EFL reading pedagogy are provided. [source] Training myths: False beliefs that limit training efficiency and effectiveness, part 2PERFORMANCE IMPROVEMENT, Issue 6 2009Wallace Hannum How we provide training follows from the beliefs we hold about the effectiveness of different training approaches and methodologies. To be effective, the concepts and principles that guide how we develop and deliver training should be rooted in research. This article describes some of the myths about training that drive the design and delivery of many training programs and that can ultimately limit their impact on learning and performance goals. [source] | ||||||||||