Atmospheric interactions with wildland fire behaviour - II. Plume and vortex dynamics

2012 ◽  
Vol 21 (7) ◽  
pp. 802 ◽  
Author(s):  
Brian E. Potter
Keyword(s):  
Vortex Dynamics ◽  
Scientific Literature ◽  
Wildland Fire ◽  
Future Research ◽  
Fire Behaviour ◽  
Plume Dynamics ◽  
Atmospheric Profiles ◽  
Atmospheric Interactions

This paper is the second of two reviewing scientific literature from 100 years of research addressing interactions between the atmosphere and fire behaviour. These papers consider research on the interactions between the fuels burning at any instant and the atmosphere, and the interactions between the atmosphere and those fuels that will eventually burn in a given fire. The first paper reviews the progression from the surface atmospheric properties of temperature, humidity and wind to horizontal and vertical synoptic structures and ends with vertical atmospheric profiles. This second paper addresses plume dynamics and vortices. The review presents several questions and concludes with suggestions for areas of future research.

Atmospheric interactions with wildland fire behaviour - I. Basic surface interactions, vertical profiles and synoptic structures

2012 ◽  
Vol 21 (7) ◽  
pp. 779 ◽  
Author(s):  
Brian E. Potter
Keyword(s):  
Scientific Literature ◽  
Wildland Fire ◽  
Companion Paper ◽  
Surface Interactions ◽  
Future Research ◽  
Vertical Profiles ◽  
Fire Behaviour ◽  
Plume Dynamics ◽  
Atmospheric Profiles ◽  
Atmospheric Interactions

This paper is the first of two reviewing scientific literature from 100 years of research addressing interactions between the atmosphere and fire behaviour. These papers consider research on the interactions between the fuels burning at any instant and the atmosphere, and the interactions between the atmosphere and those fuels that will eventually burn in a given fire. This first paper reviews the progression from the surface atmospheric properties of temperature, humidity and wind to horizontal and vertical synoptic structures and ends with vertical atmospheric profiles. (The companion paper addresses plume dynamics and vortices.) The review reveals several unanswered questions, as well as findings from previous studies that appear forgotten in current research and concludes with suggestions for areas of future research.

scholarly journals Research Creativity and Productivity in Political Science: A Research Agenda for Understanding Alternative Career Paths and Attitudes Toward Professional Work in the Profession

2019 ◽  
Vol 53 (1) ◽  
pp. 79-83
Author(s):  
Kim Quaile Hill
Keyword(s):  
Research Productivity ◽  
Career Paths ◽  
Research Agenda ◽  
Scientific Literature ◽  
Future Research ◽  
Scientific Career ◽  
Scientific Careers ◽  
Publication Success ◽  
General Scientific ◽  
Over Time

ABSTRACTA growing body of research investigates the factors that enhance the research productivity and creativity of political scientists. This work provides a foundation for future research, but it has not addressed some of the most promising causal hypotheses in the general scientific literature on this topic. This article explicates the latter hypotheses, a typology of scientific career paths that distinguishes how scientific careers vary over time with respect to creative ambitions and achievements, and a research agenda based on the preceding components for investigation of the publication success of political scientists.

Effectiveness of a Modified Version of Airflow Therapy

1982 ◽  
Vol 47 (2) ◽  
pp. 160-164
Author(s):  
Glenn L. Falkowski ◽  
Arthur M. Guilford ◽  
Jack Sandler
Keyword(s):  
Success Rate ◽  
Scientific Literature ◽  
Future Research ◽  
Relative Importance ◽  
Differential Effectiveness ◽  
History Of ◽  
One Year ◽  
Main Components

Utilizing airflow therapy, Schwartz (1976) has claimed an 89% success rate with stutterers following treatment and an 83% success rate at one year follow-up. Such claims have yet to be documented in the scientific literature. The purposes of this study were: (a) to investigate the effectiveness of a modified version of airflow therapy; (b) to examine the relative importance of its two main components—passive airflow and elongation of the first vowel spoken. The speech of two adult male stutterers with a lengthy history of stuttering, was assessed with spontaneous speaking and reading tasks. Results indicated marked improvement in both subjects' speech on the reading task was maintained at follow-up 10 weeks later. For spontaneous speech, results were generally weaker and less durable. Effects of the two treatment components were cumulative and did not allow determination of any differential effectiveness between components. Implications of these findings were considered and directions for future research discussed.

scholarly journals Developing a tool to assess technical skills in talented youth table tennis players—a multi-method approach combining professional and scientific literature and coaches’ perspectives

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Irene R. Faber ◽  
Till Koopmann ◽  
Dirk Büsch ◽  
Jörg Schorer
Keyword(s):  
Scientific Literature ◽  
Early Stage ◽  
Technical Skills ◽  
Measurement Properties ◽  
Future Research ◽  
Single Element ◽  
Table Tennis ◽  
Professional Literature ◽  
Tennis Players ◽  
New Instrument

Abstract Background The assessment of technical skills as part of a multidimensional approach for talent identification and development in sports seems promising, especially in a technique-based sport like table tennis. However, current instruments mostly focus on a single element of technical skills, mainly use quantitative outcomes, and/or are not developed for talent purposes. Practice would benefit from a new instrument using a more ecologically valid approach. Thus, the purpose of this study was to identify the essential elements of technical skills in young table tennis players and to establish a first tool while using a multi-methods study design including an archive search for professional literature, a systematic search for scientific literature, as well as ten in-depth interviews with expert coaches. Results This approach taken ensured empirical findings to be combined with knowledge and experiences from the practical field and detailed explications by high-level expert coaches. Results for the literature searches yielded 23 professional and 21 scientific articles while data saturation was reached through all ten interviews. The triangulation process resulted in two general (i.e., individuality, interconnection between elements) and five specific (i.e., bat grip, ready position, footwork/body positioning, service, stroke) elements of technical skills in young table tennis players. In addition, criteria for both flawed and excellent executions were identified for each of the five specific elements. Finally, these results were used to create an observation sheet usable for an assessment during competition. Conclusions This study revealed the crucial elements of technical skills that should be taken into account when assessing sport-specific technical skills of youth table tennis players (8–12 years). Moreover, it provided concise descriptions of what is considered to be flawed or excellent executions of technical skills. Based on these findings, a first observation sheet, the Oldenburg observation sheet for Table Tennis Technique (O3T), was created to be used for the assessment of the current technical skill level within a competitive context at the early stage of a table tennis player’s career. Future research should focus on its measurement properties and its value within a multidimensional assessment for talent purposes.

scholarly journals Reverse Logistics for Solid Waste from the Construction Industry

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Manuel Vargas ◽  
Miguel Alfaro ◽  
Natalia Karstegl ◽  
Guillermo Fuertes ◽  
María D. Gracia ◽  
...  
Keyword(s):  
Solid Waste ◽  
Construction Industry ◽  
Reverse Logistics ◽  
Scientific Literature ◽  
Current Knowledge ◽  
Research Articles ◽  
Future Research ◽  
General Management ◽  
Literature Reviews ◽  
The Relationship

This article reviews studies on the application of reverse logistics in solid waste from the construction industry. The main objective is to provide a summary of current knowledge and specific areas for future research. In addition, construction, as an economic sector, is in a continuous search for new tools to improve its processes, so this research provides the current situation of the relationship between reverse logistics and solid waste in the industry. The review methodology was content analysis of scientific literature published between 1997 and 2020, and total of 66 articles were used. 73% correspond to research articles, around 13% are case studies, and 12% are literature reviews. Only one of the articles is a survey. In addition, 52% of the works reviewed correspond to solid waste studies and 49% are related to the construction industry; only one publication does not classify in any. The most used keywords for the identification of published works were reverse logistics and supply chain; both terms are frequently related to the process and general management of solid waste and construction. The least used term was the literature review that shows the low number of articles that provide a summary of the proposed topic. Finally, three materials were chosen for the study because they are the most used in construction: metals, bricks, and concrete. 15% of the articles study all three, 18% study only metals, and 63% study other materials or are related to construction and solid waste in general.

scholarly journals Towards Automated Analysis of Research Methods in Library and Information Science

2021 ◽  
pp. 1-39 ◽  
Author(s):  
Ziqi Zhang ◽  
Winnie Tam ◽  
Andrew Cox
Keyword(s):  
Research Methods ◽  
Information Science ◽  
Scientific Literature ◽  
Complex Structure ◽  
Automated Analysis ◽  
Future Research ◽  
Library And Information Science ◽  
Diverse Range ◽  
Automated Recognition ◽  
Automated Method

Previous studies of research methods in LIS lack consensus in how to define or classify research methods, and there have been no studies on automated recognition of research methods in the scientific literature of this field. This work begins to fill these gaps by studying how the scope of ‘research methods’ in LIS has evolved, and the challenges in automatically identifying the usage of research methods in LIS literature. 2,599 research articles are collected from three LIS journals. Using a combination of content analysis and text mining methods, a sample of this collection is coded into 29 different concepts of research methods and is then used to test a rule-based automated method for identifying research methods reported in scientific literature. We show that the LIS field is characterised by the use of an increasingly diverse range of methods, many of which originate outside the conventional boundaries of LIS. This implies increasing complexity in research methodology and suggests the need for a new approach towards classifying LIS research methods to capture the complex structure and relationships between different aspects of methods. Our automated method is the first of its kind in LIS, and sets an important reference for future research.

scholarly journals The Impact of Board Capital on Internationalization of SMEs: Initial Theoretical Considerations

2020 ◽  
pp. 12-16
Author(s):  
Monika Bužavaitė ◽  
Renata Korsakiene
Keyword(s):  
Scientific Literature ◽  
Research Direction ◽  
Future Research ◽  
Resource Based View ◽  
Board Capital ◽  
And Behavior ◽  
The Impact ◽  
The Relationship ◽  
Theoretical Considerations ◽  
Agency Resource

The study aims to investigate the relationship between Board capital and internationalization of SMEs. The study implements a systematic review and synthesis of scientific literature. The article presents useful insights into the concept of Board capital, Agency, Resource dependency, Institutional theories, and Resource-Based view. These theories give us a better understanding of Board capital, the firm’s management and behavior. The analysis of recent studies suggests that external members of the Board might positively affect internationalization outcomes and be useful in overcoming obstacles during the initiation of international activities. Nevertheless, international entrepreneurship literature is still lacking studies considering Board capital. A deeper investigation of Board capital factors impacting the internationalization of SMEs can be stated as a future research direction. 

Mantras of wildland fire behaviour modelling: facts or fallacies?

2017 ◽  
Vol 26 (11) ◽  
pp. 973 ◽  
Author(s):  
Miguel G. Cruz ◽  
Martin E. Alexander ◽  
Andrew L. Sullivan
Keyword(s):  
Wildland Fire ◽  
Original Data ◽  
Fire Spread ◽  
Empirical Models ◽  
Physical Models ◽  
Fire Behaviour ◽  
Fire Science ◽  
Current State ◽  
Valid Data ◽  
Insight Into

Generalised statements about the state of fire science are often used to provide a simplified context for new work. This paper explores the validity of five frequently repeated statements regarding empirical and physical models for predicting wildland fire behaviour. For empirical models, these include statements that they: (1) work well over the range of their original data; and (2) are not appropriate for and should not be applied to conditions outside the range of the original data. For physical models, common statements include that they: (3) provide insight into the mechanisms that drive wildland fire spread and other aspects of fire behaviour; (4) give a better understanding of how fuel treatments modify fire behaviour; and (5) can be used to derive simplified models to predict fire behaviour operationally. The first statement was judged to be true only under certain conditions, whereas the second was shown not to be necessarily correct if valid data and appropriate modelling forms are used. Statements three through five, although theoretically valid, were considered not to be true given the current state of knowledge regarding fundamental wildland fire processes.

scholarly journals What Is Known: Examining the Empirical Literature in Resident Work Hours Using 30 Influential Articles

2016 ◽  
Vol 8 (5) ◽  
pp. 795-805 ◽  
Author(s):  
Ingrid Philibert
Keyword(s):  
Patient Safety ◽  
Scientific Literature ◽  
Well Being ◽  
Work Hours ◽  
Small Samples ◽  
Empirical Literature ◽  
Future Research ◽  
Resident Work ◽  
Work Hour ◽  
The Impact

ABSTRACT Background  Examining influential, highly cited articles can show the advancement of knowledge about the effect of resident physicians' long work hours, as well as the benefits and drawbacks of work hour limits. Objective  A narrative review of 30 articles, selected for their contribution to the literature, explored outcomes of interest in the research on work hours—including patient safety, learning, and resident well-being. Methods  Articles were selected from a comprehensive review. Citation volume, quality, and contribution to the evolving thinking on work hours and to the Accreditation Council for Graduate Medical Education standards were assessed. Results  Duty hour limits are supported by the scientific literature, particularly limits on weekly hours and reducing the frequency of overnight call. The literature shows declining hours and call frequency over 4 decades of study, although the impact on patient safety, learning, and resident well-being is not clear. The review highlighted limitations of the scientific literature on resident hours, including small samples and reduced generalizability for intervention studies, and the inability to rule out confounders in large studies using administrative data. Key areas remain underinvestigated, and accepted methodology is challenged when assessing the impact of interventions on the multiple outcomes of interest. Conclusions  The influential literature, while showing the beneficial effect of work hour limits, does not answer all questions of interest in determining optimal limits on resident hours. Future research should use methods that permit a broader, collective examination of the multiple, often competing attributes of the learning environment that collectively promote patient safety and resident learning and well-being.

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