Game Strategy Used by the World’s Top Female Squash Players in International Competition - A Notational Analysis

1998 ◽  
Vol 7 (1) ◽  
pp. 27-44
Author(s):  
Youlian Hong ◽  
Paul D. Robinson ◽  
Wan Ka Chan
Keyword(s):  
Hong Kong ◽  
Scoring System ◽  
Video Camera ◽  
International Competition ◽  
System A ◽  
Notational Analysis ◽  
Analysis Methods ◽  
The World ◽  
The Mean ◽  
High Level

The purpose of this paper was to profile game strategy used by world’s top female squash players in international competitions using postevent notational analysis methods. A total of 10 matches from the Ladies Hong Kong Open 1993 and 1994 were selected for analysis. A total of 15 right-handed competitors, who were ranked in the top 15 in the world at that time, were involved in the matches. Matches were played under the International scoring system. A 3-CDD video camera, positioned behind the court, was used to record the player’s performance throughout the matches. Frame-by-frame video notation was used to record the player, the kind of stroke, the position where the stroke was made, and the success or failure of that stroke. Shots were classified as “effective”, “ineffective”, “winning” and “losing” shots. Statistics show that the mean number of games per match was 4, rallies per game was 13.57 and shots per rally was 12.44. Of all the shots, 57.13% were “effective”, 31.36% were “ineffective”, 6.24% were “winning” and 5.27% were “losing” shots. Over half (62.01%) of all shots played were the drive, followed by drop (18.20%), volley (11.23%), boast (5.06%) and lob (3.50%). Of all shots played, 43.81% were in the back left court, 32.66% in the back right court, 13.04% in the front left court, and 10.49% in the front right court, showing that these right-handed players preferred to attack the backhand of the opponent. The drive (45.9%) was found to provide the greatest contribution shots to winning scores, with the next greatest being the drop (27.9%), then the volley (20.2), the boast (5.6%) and, finally, the lob (0.5%). Almost an equal number of cross-court shots and straight shots were played. In an average game, the winner played 50% more winning shots than the losing player, showing that in high level competition of female squash, the attacking shots, which produce the most winning scores, are required for success.

scholarly journals Notational analysis on game strategy performed by female squash players in international competition

2016 ◽  
Vol 5 (2) ◽  
Author(s):  
Diyana Zulaika Abdul Ghani ◽  
ZAINAL ABIDIN ZAINUDDIN ◽  
HALIJAH IBRAHIM
Keyword(s):  
International Competition ◽  
Performance Standard ◽  
International Level ◽  
World Championship ◽  
Notational Analysis ◽  
General Performance ◽  
The Mean ◽  
And Performance ◽  
Practical Implications ◽  
Very High

In recent times, the general performance standard of women’s squash has progressed to very high levels as demonstrated by several ‘spectacular’ world championships final matches. Our aim was to identify successful game strategies of female squash players at the international level via notational analysis. 25 matches were obtained for analysis from several international competitions, including the Women’s World Championship 2014, the Women’s World Team Squash Championship 2014 and the Malaysia Circuit Squash 2015. The analysis was based on observation of the type of stroke performed and the rally outcome. The mean total number of shots performed per game was 337 (SD=189.6) shots. The most preferred strokes performed were drive (47.1%) followed by cross-court (19.9%), volley (12.7%), drop (11.1%), boast (5.8%), with the lob (3.4%) as least frequent occurring shot. Meanwhile, rally outcomes were categorized as winners, errors, stroke, and let. There were more winners produced (58.5%) compared to errors (24.8%) and lets (16.69%). The findings indicate that defensive long rallies together with offensive endings (using for example, well-timed drop shots) are characteristic of points played in elite women’s squash. The practical implications of this analysis could help coaches and female players to enhance their tactical strategy and performance.

scholarly journals SCIENTIFIC RESEARCH IN THE EDUCATION FIELD AS A CONDITION OF PROVIDING QUALITY OF STUDY IN UNIVERSITIES OF THE WORLD

2020 ◽  
pp. 155-168
Author(s):  
Olga Melnychenko
Keyword(s):  
Hong Kong ◽  
United Kingdom ◽  
Los Angeles ◽  
Research Work ◽  
Literacy Skills ◽  
Quality Of Education ◽  
World University Rankings ◽  
The World ◽  
High Level

The article is devoted to the analysis of scientific researches of the best universities in the world providing training in the field of education and their impact on the quality of education. The analysis is based on the results of the QS World University Rankings in Education, which identified the top ten universities in the world in 2019, which train specialists in education. In the article the general directions and topics of scientific researches, as well as specific ones, specific to each university are highlighted. The author reveals the peculiarities of the research work of the best universities in the world in the field of education and its relationship with the quality of education. Particular attention is paid to the criteria of quality (success) of the activities of universities, and research in particular. The article emphasizes that analyzing the educational research of the best universities in the world as a condition of ensuring the quality of education can be very useful for the development of education (and not just pedagogical) in Ukraine. It is noted that a high level of educational research will help Ukrainian education to achieve modern quality of study, to provide it on a research basis and to become practically oriented. The author defines the key characteristics of successful research universities, including the following: • availability of basic and applied research in contemporary areas and topics; • carrying out research work focused on the practical results of the research; • a wide range of disciplines included in the educational program in any specialty; • a high proportion of postgraduate research programs; • high level of external income of the university, which is ensured by the implementation of research results; • international recognition of research findings and prospects for their further development. According to the QS World University Rankings, the top ten universities in the world that provide training in education are: 1. University College London, (UCL), (United Kingdom); 2. Harvard University, (USA); 3. Stanford University (USA); 4. University of Oxford, (United Kingdom); 5. University of Cambridge, (United Kingdom); 6. University of Hong Kong, (Hong Kong); 7. University of Toronto, (Canada); 8. Berkeley University, California, (USA); 9. Columbia University, New York, (USA); 10.University of California (Los Angeles), USA By looking at research topics, you can distinguish topics that are most commonly found in universities. In this case, we are referring to non-standard general topics of pedagogical research such as: educational policy, organization and improvement of training, development of standards of teaching, didactics of learning, etc. They are present in the scientific research of the best universities, but the most important place is occupied by the research topics that characterize the current stage of development of education in the world, with all its features, influences and main trends. For example, almost all the best universities in the world are researching on human rights and equity in education. A striking example of such research can be the scientific theme of the Pedagogical Institute of Hong Kong University "Justice and Social Justice in Education". Another important theme that unites the best universities is the topic of developing critical thinking and developing critical media literacy skills for students and students. An example of such research is the Teachers' Training Program for Critical Media Literacy Skills in Students at the Teachers at the University of California, Los Angeles, USA.

scholarly journals Classification of Countries According to their Tourism Statistics via Different Cluster Analysis Methods and the Place of Turkey in this Structure

2013 ◽  
Author(s):  
Selay Giray
Keyword(s):  
Cluster Analysis ◽  
Hong Kong ◽  
Russian Federation ◽  
Fuzzy Clustering ◽  
Clustering Methods ◽  
Clustering Method ◽  
Analysis Methods ◽  
Fuzzy Clustering Method ◽  
The World

The aim of this study is to classify the countries according to their tourism indicators via different cluster analysis methods and compare the findings. Using classical cluster analysis and fuzzy clustering together will be more appropriate to determine the World tourism structure. In this way the findings can be interpreted more detailed and comparatively. Data obtained from website of Worldbank (3 basic international tourism statistics of 159 countries for the year 2010) and findings are gained using NCSS (statistical software) 2007. According to the findings of fuzzy clustering method, Turkey belogs to a cluster which contains ABD, United Kingdom, China, Austria, France, Germany, Italy, Malaysia, Spain, Hong Kong, Russian Federation, and Ukraine. According to the findings of classical clustering method (k means), Turkey is in the same cluster with same countries except Hong Kong. Also the findings of two techniques are similar about Turkey. Such a result can be expected correspondingly grading the countries about international their tourism data in 2011. Different clustering methods findings are steady about Euroasian countries too. Except Russian Federation and Ukraine all of the other Euroasian countries are located together in same cluster depending upon two different clustering methods. In conclusion two different clustering methods provide consistent (similar) results about the classification of countries according their internatianol tourism statistics.

scholarly journals Fear of Сoronavirus Disease (COVID-19) and Basic Personality Beliefs

2020 ◽  
Vol 9 (2) ◽  
pp. 99-118 ◽  
Author(s):  
V.V. Gritsenko ◽  
A.D. Reznik ◽  
V.V. Konstantinov ◽  
T.Y. Marinova ◽  
N.V. Khamenka ◽  
...  
Keyword(s):  
Hong Kong ◽  
United Kingdom ◽  
Reliability And Validity ◽  
Psychological Resources ◽  
Low Intensity ◽  
The United Kingdom ◽  
The World ◽  
High Level ◽  
Personality Beliefs ◽  
Basic Beliefs

The article presents data on the experience of fear about the coronavirus disease (COVID-19), depending on the severity of personality basic beliefs. Authors interviewed 950 people aged 12 to 74 years (average age is 35 years). The study was conducted in March 2020 online. The intensity of fear about the coronavirus was studied using the COVID-19 fear scale developed by a team of scientists from Hong Kong, Iran, the United Kingdom and Sweden. The scale was tested for reliability and validity in the Iranian, Russian and Belarusian samples (Ahorsu D.K. et al., 2020; Reznik A. et al., 2020). The personality basic beliefs were diagnosed using the Scale of Basic Beliefs developed by R. Janoff-Bulman (translation and adaptation by O.A. Kravtsova) (Soldatova G.U. et al., 2008). Revealed that more than a third of the subjects have a high level of fear about the coronavirus. Showed that the low intensity of fear about the COVID-19 disease is associated with the severity of personality basic beliefs. Concluded that the personality basic beliefs in goodness and justice of the world around, the values and importance of own “Self” can act as psychological resources for coping a tough situation in life, the specificity of which is due to the fear about the coronavirus disease.

scholarly journals Relationships Between Triathlon Performance and Pacing Strategy During the Run in an International Competition

2011 ◽  
Vol 6 (2) ◽  
pp. 183-194 ◽  
Author(s):  
Yann Le Meur ◽  
Thierry Bernard ◽  
Sylvain Dorel ◽  
Chris R. Abbiss ◽  
Gérard Honnorat ◽  
...  
Keyword(s):  
Video Analysis ◽  
Inverse Correlation ◽  
International Competition ◽  
Running Speed ◽  
Significant Inverse Correlation ◽  
Pacing Strategy ◽  
Pacing Strategies ◽  
The Mean ◽  
Analysis System ◽  
High Level

Purpose:The purpose of the present study was to examine relationships between athlete’s pacing strategies and running performance during an international triathlon competition.Methods:Running split times for each of the 107 finishers of the 2009 European Triathlon Championships (42 females and 65 males) were determined with the use of a digital synchronized video analysis system. Five cameras were placed at various positions of the running circuit (4 laps of 2.42 km). Running speed and an index of running speed variability (IRSVrace) were subsequently calculated over each section or running split.Results:Mean running speed over the frst 1272 m of lap 1 was 0.76 km-h–1 (+4.4%) and 1.00 km-h–1 (+5.6%) faster than the mean running speed over the same section during the three last laps, for females and males, respectively (P < .001). A significant inverse correlation was observed between RSrace and IRSVrace for all triathletes (females r = -0.41, P = .009; males r = -0.65, P = .002; and whole population -0.76, P = .001). Females demonstrated higher IRSVrace compared with men (6.1 ± 0.5 km-h–1 and 4.0 ± 1.4 km-h–1, for females and males, respectively, P = .001) due to greater decrease in running speed over uphill sections.Conclusions:Pacing during the run appears to play a key role in high-level triathlon performance. Elite triathletes should reduce their initial running speed during international competitions, even if high levels of motivation and direct opponents lead them to adopt an aggressive strategy.

scholarly journals Development of a test system for high level liquid waste partitioning

2015 ◽  
Vol 30 (4) ◽  
pp. 311-317
Author(s):  
Wu Duan ◽  
Jing Chen ◽  
Jian Wang ◽  
Shu Wang ◽  
Xing Wang
Keyword(s):  
Liquid Waste ◽  
Video Camera ◽  
Extraction Process ◽  
Test System ◽  
High Level Liquid Waste ◽  
Sampling System ◽  
System A ◽  
Treatment And Disposal ◽  
High Level ◽  
Hot Test

The partitioning and transmutation strategy has increasingly attracted interest for the safe treatment and disposal of high level liquid waste, in which the partitioning of high level liquid waste is one of the critical technical issues. An improved total partitioning process, including a tri-alkylphosphine oxide process for the removal of actinides, a crown ether strontium extraction process for the removal of strontium, and a calixcrown ether cesium extraction process for the removal of cesium, has been developed to treat Chinese high level liquid waste. A test system containing 72-stage 10-mm-diam annular centrifugal contactors, a remote sampling system, a rotor speed acquisition-monitoring system, a feeding system, and a video camera-surveillance system was successfully developed to carry out the hot test for verifying the improved total partitioning process. The test system has been successfully used in a 160 hour hot test using genuine high level liquid waste. During the hot test, the test system was stable, which demonstrated it was reliable for the hot test of the high level liquid waste partitioning.

scholarly journals Designing a dictionary of patterns of destructive utterances in the task of identifying destructive information influence

2020 ◽  
Vol 224 ◽  
pp. 03013
Author(s):  
E.P. Okhapkina ◽  
V.P. Okhapkin ◽  
A.O. Iskhakova ◽  
A.Y. Iskhakov
Keyword(s):  
Social Networks ◽  
Hong Kong ◽  
Large Scale ◽  
Modern Society ◽  
Subject Area ◽  
The Political ◽  
Control Actions ◽  
The World ◽  
The Subject ◽  
High Level

Due to the high level of tension in modern society, social networks are widely used for destructive management of the information space. This aspect of the use of social networks has become particularly important in the light of events taking place in the world (Hong Kong, Syria, France and Ukraine). According to statistics, about 50% of politicized active groups of social networks are subjects to targeted control actions aimed at spreading negative moods in the political sphere. The escalation of conflicts in society generates the most dangerous type of destructive information influence (DII) that require rapid, large-scale coordination of participants in order to attract new supporters and their organizations. Massive DII on the participants of social networks groups exacerbated the problem of promptly identifying the facts of influence, and created serious prerequisites for the development and improvement of methods and means of identifying DII in social networks. The relevance of this problem is due to the existence of a number of methodological and technological problems in the subject area under consideration, one of them is the lack of patterns of network messages containing elements of DII. In the study, the authors consider an approach to designing a dictionary of patterns of destructive utterances.

scholarly journals The human-AI scoring system: A new method for CT-based assessment of COVID-19 severity

2021 ◽  
pp. 1-10
Author(s):  
Mingzhu Liu ◽  
Weifu Lv ◽  
Baocai Yin ◽  
Yaqiong Ge ◽  
Wei Wei
Keyword(s):  
Scoring System ◽  
Roc Analysis ◽  
Diagnostic Value ◽  
Chest Ct ◽  
Wilcoxon Test ◽  
Clinical Severity ◽  
Spearman Correlation ◽  
System A ◽  
The Mean ◽  
Severe Type

BACKGROUND: Chest computed tomography (CT) plays an important role in the diagnosis and assessment of coronavirus disease 2019 (COVID-19). OBJECTIVE: To evaluate the value of an artificial intelligence (AI) scoring system for radiologically assessing the severity of COVID-19. MATERIALS AND METHODS: Chest CT images of 81 patients (61 of normal type and 20 of severe type) with confirmed COVID-19 were used. The test data were anonymized. The scores achieved by four methods (junior radiologists; AI scoring system; human-AI segmentation system; human-AI scoring system) were compared with that by two experienced radiologists (reference score). The mean absolute errors (MAEs) between the four methods and experienced radiologists were calculated separately. The Wilcoxon test is used to predict the significance of the severity of COVID-19. Then use Spearman correlation analysis ROC analysis was used to evaluate the performance of different scores. RESULTS: The AI score had a relatively low MAE (1.67–2.21). Score of human-AI scoring system had the lowest MAE (1.67), a diagnostic value almost equal to reference score (r= 0.97), and a strongest correlation with clinical severity (r= 0.59, p< 0.001). The AUCs of reference score, score of junior radiologists, AI score, score of human-AI segmentation system, and score of human-AI scoring system were 0.874, 0.841, 0.852, 0.857 and 0.865, respectively. CONCLUSION: The human-AI scoring system can help radiologists to improve the accuracy of COVID-19 severity assessment.

Ratio imaging of intracellular ion concentration

1992 ◽  
Vol 50 (2) ◽  
pp. 1160-1161
Author(s):  
Stephen R. Bolsover
Keyword(s):  
Individual Cell ◽  
Video Camera ◽  
Field Of View ◽  
Ion Concentration ◽  
Fluorescence Signal ◽  
Ion Imaging ◽  
Ratiometric Fluorescence ◽  
Ratio Imaging ◽  
The Mean ◽  
The Many

The field of intracellular ion concentration measurement expanded greatly in the 1980's due primarily to the development by Roger Tsien of ratiometric fluorescence dyes. These dyes have many applications, and in particular they make possible to image ion concentrations: to produce maps of the ion concentration within living cells. Ion imagers comprise a fluorescence microscope, an imaging light detector such as a video camera, and a computer system to process the fluorescence signal and display the map of ion concentration.Ion imaging can be used for two distinct purposes. In the first, the imager looks at a field of cells, measuring the mean ion concentration in each cell of the many in the field of view. One can then, for instance, challenge the cells with an agonist and examine the response of each individual cell. Ion imagers are not necessary for this sort of experiment: one can instead use a system that measures the mean ion concentration in a just one cell at any one time. However, they are very much more convenient.

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