Dynamic similarities in action systems

1996 ◽  
Vol 19 (1) ◽  
pp. 71-72
Author(s):  
Allen W. Burton
Keyword(s):  
Performance Measures ◽  
Task Analysis ◽  
Movement Patterns ◽  
Global Dynamics ◽  
Action Systems ◽  
Action System ◽  
Insight Into

AbstractLatash & Anson's contention that movement patterns that are different from those typically observed in persons without impairments should not be considered abnormal and usually should not be corrected is consistent with Davis & Burton's Ecological Task Analysis (ETA). Extending from the ETA concept of performer-scaled performance measures, the use of Froude numbers may offer insight into the global dynamics of a person's action system.

Systematic Approach to Measuring ILI Tool Performance

2014 ◽  
Author(s):  
Sean Keane ◽  
Karmun Cheng ◽  
Kaitlyn Korol
Keyword(s):  
Performance Measurement ◽  
Performance Measures ◽  
New Technologies ◽  
Efficient Reduction ◽  
Tool Performance ◽  
Typical Performance ◽  
Substantial Investment ◽  
Integrity Management ◽  
Insight Into

In-line inspection (ILI) tools play an important role within integrity management and substantial investment is made to continuously advance performance of the existing technologies and, where necessary, to develop new technologies. Performance measurement is typically focused for the purpose of understanding the measured performance in relation to the ILI vendor specification and for the determination of residual uncertainty regarding pipeline integrity. These performance measures may not provide the necessary insight into what type of investment into a technology is necessary to further reduce residual uncertainty regarding pipeline integrity, and beyond that, what investment, as an operator, results in an effective and efficient reduction in uncertainty. The paper proposes a reliability based approach for investigating uncertainty associated with ultrasonic crack ILI technology for the purpose of identifying efficient investment into the technology that results in an effective and measurable improvement. Typical performance measures and novel performance measurement methods are presented and reviewed with respect to what information they can provide to assist in investment decisions. Finally, general observations are made regarding Enbridge’s experience using ultrasonic crack ILI technology and areas currently being investigated.

The mediating role of fairness on the effectiveness of strategic performance measurement systems

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Kevin Baird ◽  
Sophia Xia Su ◽  
Nuraddeen Nuhu
Keyword(s):  
Performance Appraisal ◽  
Human Resource ◽  
Performance Measures ◽  
Content Type ◽  
Strategic Performance ◽  
Measurement Systems ◽  
Mediating Role ◽  
Performance Measurement Systems ◽  
Insight Into

PurposeThis study examines the mediating role of the fairness of performance appraisal on the association between the extent of use of strategic performance measurement systems (SPMSs) with SPMS effectiveness.Design/methodology/approachData were collected using an online survey distributed to 656 Australian middle and lower level managers.FindingsThe findings reveal that informational fairness mediates the association between SPMSs (link to value drivers and the use of multidimensional performance measures) with performance-related outcomes; procedural fairness mediates the association between SPMSs (link to strategy and the use of multidimensional performance measures) with staff-related outcomes and distributive fairness mediates the association between the use of SPMSs (all three types) with both performance and staff-related outcomes.Originality/valueThe study provides a unique insight into the importance of fairness (the distributive, informational and procedural fairness of the performance appraisal system) in mediating the associations between the extent of use of SPMSs and SPMS effectiveness. The findings contribute to the human resource management (HRM) “black box” literature by providing an insight into the behavioural mechanism through which a specific human resource management practice (i.e. the SPMS) influences organisational performance.

The Semiotics of Cybernetic Percept-Action Systems

2011 ◽  
Vol 1 (1) ◽  
pp. 1-17 ◽  
Author(s):  
Peter Cariani
Keyword(s):  
Performance Measures ◽  
Physical Systems ◽  
Action Systems ◽  
Sign Systems ◽  
Operational Systems ◽  
Functional Sign ◽  
Physical Construction ◽  
Semantic Closure ◽  
Operational Structure

In this paper, a semiotic framework for natural and artificial adaptive percept-action systems is presented. The functional organizations and operational structures of percept-action systems with different degrees of adaptivity and self-construction are considered in terms of syntactic, semantic, and pragmatic relations. Operational systems-theoretic criteria for distinguishing semiotic, sign-systems from nonsemiotic physical systems are proposed. A system is semiotic if a set of functional sign-states can be identified, such that the system’s behavior can be effectively described in terms of operations on sign-types. Semiotic relations involved in the operational structure of the observer are outlined and illustrated using the Hertzian commutation diagram. Percept-action systems are observers endowed with effectors that permit them to act on their surrounds. Percept-action systems consist of sensors, effectors, and a coordinative part that determines which actions will be taken. Cybernetic systems adaptively steer behavior by altering percept-action mappings contingent on evaluated performance measures via embedded goals. Self-constructing cybernetic systems use signs to direct the physical construction of all parts of the system to create new syntactic, semantic, and pragmatic relations. When a system gains the ability to construct its material hardware and choose its semiotic relations, it achieves a degree of epistemic autonomy, semantic closure, and pragmatic self-direction.

Study, Development, and Design of a Mouse

1986 ◽  
Vol 30 (9) ◽  
pp. 900-904 ◽  
Author(s):  
Diane Hodes ◽  
Kenichi Akagi
Keyword(s):  
Task Analysis ◽  
Human Performance ◽  
Performance Testing ◽  
General Purpose ◽  
Leadership Role ◽  
Design Criteria ◽  
Input Device ◽  
Insight Into ◽  
Study Development

A series of research studies were conducted to develop design criteria for a general purpose mechanical input device. The design criteria and parameters were established with ergonomic studies which included task analysis, competitive analysis and human performance testing. By taking a leadership role in the production issues, Human Factors engineers were successful in having the results of their research implemented into a new design. This report is a case study which offers some insight into methodological and design issues associated with producing an ergonomically designed product.

scholarly journals History of Neuro Rehabilitation in Russia

2021 ◽  
Vol 24 (1) ◽  
pp. 47-52
Author(s):  
Viktoriya S. Vorontsova ◽  
Mikhail M. Kanarskii ◽  
Marina V. Petrova ◽  
Igor V. Pryanikov
Keyword(s):  
Twentieth Century ◽  
Mental Disorders ◽  
Movement Patterns ◽  
Medical Rehabilitation ◽  
Physical Injury ◽  
History Of ◽  
Clinical Illness ◽  
Management Approaches ◽  
Everyday Reality ◽  
Insight Into

Medical rehabilitation is a process aimed at promoting and facilitating recovery from physical injury, psychological and mental disorders and clinical illness. The history of medical rehabilitation is a fascinating journey through time, providing insight into many different areas of medicine. When modern rehabilitation emerges in the mid-twentieth century, it stems from a combination of management approaches focusing on orthopedic and biomechanical understanding of movement patterns, on mastering neuropsychological mechanisms, and on an awareness of the socio-professional dimension of everyday reality.

scholarly journals Global Dynamics of a Prey-Predator Model with Antipredator Behavior and Two Predators

2019 ◽  
Vol 2019 ◽  
pp. 1-9
Author(s):  
Chentong Li ◽  
Yingying Zhang ◽  
Jinhu Xu ◽  
Yicang Zhou
Keyword(s):  
Antipredator Behavior ◽  
Periodic Oscillation ◽  
Global Dynamics ◽  
Boundedness Of Solutions ◽  
New Model ◽  
Basic Properties ◽  
Predator Model ◽  
Existence Of Equilibria ◽  
Insight Into ◽  
Positivity And Boundedness

In this work, we establish a new model of one prey and two predators with antipredator behavior. The basic properties on the positivity and boundedness of solutions and the existence of equilibria are established. Through analyzing the global dynamics, we find that there exist some values of the parameters such that one of the predators can be driven into being extinct by another. Furthermore, the coexistence of the three species is investigated which shows that the antipredator behavior makes the species coexist by periodic oscillation. The results give a new insight into the influence of antipredator behavior in nature selection.

Scheduling tribes

Focaal ◽  
2013 ◽  
Vol 2013 (65) ◽  
pp. 13-22 ◽  
Author(s):  
Townsend Middleton
Keyword(s):  
Affirmative Action ◽  
Civil Servants ◽  
Human Dimension ◽  
Current Crisis ◽  
Action System ◽  
Indian State ◽  
Tribal Recognition ◽  
Inside Out ◽  
Insight Into

Venturing into an ethnography of government anthropologists themselves, this article interrogates the bureaucratic inner workings and actual agents of today's “ethnographic state." By engaging with the civil servants who verify India's Scheduled Tribes, I explore the politics of “tribal“ recognition from the inside out. This perspective lends timely insight into the logistical, political, and epistemological difficulties integral to the functioning-and current crisis-of India's affirmative action system. Weighing the demands of “tribal“ recognition through those that arguably know them best-government anthropologists themselves- this study examines the human dimension (and dilemmas) of the Indian state and its affirmative action system for Scheduled Tribes.

scholarly journals Usability Analysis of Aviation Weather Products for General Aviation

2019 ◽  
Vol 63 (1) ◽  
pp. 1903-1907
Author(s):  
Jacqueline McSorley ◽  
John Kleber ◽  
Beth Blickensderfer
Keyword(s):  
Performance Measures ◽  
General Aviation ◽  
System Usability Scale ◽  
System Usability ◽  
Usability Analysis ◽  
Perceived Usability ◽  
And Performance ◽  
Insight Into ◽  
Different Parts ◽  
Aviation Weather

Previous research suggests that a lack of weather knowledge and poor usability of weather displays may be contributing to aviation weather-related accidents. The purpose of this study was to analyze the perceived usability and performance of pilots while using different parts of the Aviation Weather Center (AWC) website. On average, pilots rated Radar the highest, followed by Terminal Aerodrome Forecasts (TAFs), and then Satellite on the System Usability Scale. Performance measures and the post-study interview revealed further insight into what aspects of the AWC are giving pilots difficulties.

scholarly journals Relating the unique sensory system of amblypygids to the ecology and behavior of Phrynus parvulus from Costa Rica (Arachnida, Amblypygi)

2002 ◽  
Vol 80 (2) ◽  
pp. 286-295 ◽  
Author(s):  
Eileen A Hebets
Keyword(s):  
Environmental Factors ◽  
Surface Area ◽  
Observational Data ◽  
Sensory System ◽  
Movement Patterns ◽  
Costa Rican ◽  
Movement Distance ◽  
And Behavior ◽  
Insight Into ◽  
Over Time

While the unique sensory system and neuroanatomy of amblypygids suggest that olfaction is important in their lives, to date no behavioral data exist to support this suggestion. To gain insight into amblypygid ecology and behavior, an individual mark–recapture study was conducted on the Costa Rican amblypygid Phrynus parvulus. Within two 50 by 25 m plots, the distribution and movement patterns of individual amblypygids were recorded for over 2 months. A total of 88 adult individuals (60 males and 28 females) were marked, with an average 51% resighted. Females were resighted more frequently than males (75% females, 40% males). The sexes did not differ in their frequency or movement distance, but females were more likely to be seen on the same tree over time. While both sexes potentially wander in search of mates, females may also be searching for a good crevice, or diurnal hideout. Once a female has mated and laid eggs, she likely remains stationary. Movement patterns and tree choice seem to be dictated by both the presence of conspecifics and environmental factors such as tree surface area, moss cover, and the presence of buttressing. Cumulative observational data collected over 3 years suggest that the main breeding season for this species is October-January. Both mate attraction and navigation may be facilitated by the olfactory capabilities of amblypygids, while their giant interneurons may be involved in their foraging behavior.

Mid-distance re-sighting of a common bottlenose dolphin in the northern Adriatic Sea: insight into regional movement patterns

2015 ◽  
Vol 96 (4) ◽  
pp. 909-914 ◽  
Author(s):  
Tilen Genov ◽  
Valeria Angelini ◽  
Ana Hace ◽  
Giuseppe Palmisano ◽  
Boris Petelin ◽  
...  
Keyword(s):  
Bottlenose Dolphin ◽  
Adriatic Sea ◽  
Animal Movement ◽  
Bottlenose Dolphins ◽  
Movement Patterns ◽  
Population Level ◽  
Northern Adriatic Sea ◽  
Northern Adriatic ◽  
Common Bottlenose Dolphin ◽  
Insight Into

Understanding animal movement patterns is not only important for providing insight into their biology, but is also relevant to conservation planning. However, in aquatic and wide-ranging species such as cetaceans, this is often difficult. The common bottlenose dolphin (Tursiops truncatus) is the most common cetacean in the northern and central Adriatic Sea and has been the focus of long-term studies in some areas. All of the studied local populations show a relatively high degree of site fidelity, but their movements, ranging patterns or connectivity are not well understood. On 24 and 26 April 2014 a single adult bottlenose dolphin was observed and photographed alive off the Slovenian coast. The same individual was found dead on the shores of Goro, Italy, on 5 May 2014, about 130 km from the two sighting locations. The well-marked dorsal fin made the identification straightforward. The dolphin was found freshly dead, suggesting it had died very recently prior to being found. This indicates that the reported movement was a real one, rather than an artefact of currents. Although single cases cannot provide the basis for making population-level inferences, our observation shows that northern Adriatic bottlenose dolphins can make substantial movements in short periods of time and suggests that such movements could be more common than currently documented. Comparisons among photo-ID catalogues and stranding events can be highly informative, as they can provide useful information with implications for the cross-border conservation of mobile marine predators.

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