411 research outputs found
The Relation Between Self-Esteem Development and Learning Breaststroke Swimming Performance
This study investigates the relation between self-esteem development and learning to perform the breaststroke swimming skill. Twenty four female students from physical education faculty at the university of Jordan (19 ± 0.5) years of age, who were assigned in swimming course (2) in the first semester 2014/2015. After completing the self-esteem Questionnaire (Robson Self-Esteem Questionnaire, 1989) the subjects were randomly divided into two groups: experimental group (n=12) received physical practice of the breaststroke swimming skill performance, and dialogues for self-esteem development, and control group (n=12) received only physical practice of the breaststroke swimming skill performance. Two measurements were taken; both groups were measured at the beginning (pre-test), in order to establish that all students started at the same level of performance and global self-esteem level, after the pre-test of the breaststroke skills performance, all subjects filled out the self-esteem questionnaire. After the completion of the intervention the final measurements were taken (post-test), to note the impact of the intervention on the student`s performance in breaststroke swimming skills and selfesteem improvement. Statistical analysis included t-Test for mean at pre and post test for the two groups and t-Test for mean at post test in the two groups. The results showed significant differences (p < 0.05) in post test between the two groups in favor of the experimental group. In conclusions learning new swimming skills performance engaged to dialogues for self-esteem development enhanced learning and improved skills performance of the breaststroke swimming
A Comparison Between Two Methods for Teaching Forearm Defense in Volleyball and Determining the Transfer of Learning from an Instructional Setting to a Game-Like Setting
This study aims to make a comparison between two different methods (the Bottom-up method and the Top-down method) for teaching forearm defense in volleyball and determining the transfer of learning from an instructional setting to a game-like setting. The subjects of the study were (36) students at physical education faculty in the university of Jordan, with mean age of (20 ± 0.5) years, who were assigned in volleyball course (2) in the second semester 2015/2016. They were divided randomly into two groups: The Bottom-up method group (18) students, and the Top-down method group (18) students. Two different (4-weeks) programs were applied, three times per week for (50 minutes) by the same physical education teacher; the author of this study who is specialized in teaching volleyball, (12) lessons plans were prepared for each group in which the subjects learned the forearm defense skill and how to use this skill under game conditions. Two measurements were taken; both groups were measured at the beginning (pre-test) in order to establish that all students started at the same level of skill performance and under game-like conditions performance. After the completion of the teaching program, the final measurements were taken (post-test) to note the different impact between the two methods of teaching on the subject`s performance in forearm defense skill performance and game-like conditions. Statistical analysis by using the (SPSS) program was done, included T-test for mean at pre and post test for the two groups and T-test for mean at post test between the two groups. The results showed significant differences (p < 0.05) in post test between the two groups in favor of the Bottom-up method group in forearm defense skill performance in volleyball. Whereas, the results showed significant differences (p < 0.05) in post test between the two groups in favor of the Top-down method group in transfer performance to a game-like setting. The study concluded that it is important to use the combination of both methods; both methods have merit according to the stage of motor learning
The impact of an educational course for swimming on free style swimming performance and life skills for deaf students
This study investigates the impact of an educational course for swimming on free style swimming performance and life skills for deaf students. Subjects were (10) male deaf students who were at-tended to swimming courses level (1) in the Faculty of Physical Education at the University of Jordan, with mean age of (M age = 20.4 SD =1.35). After completing the Life skills through swimming context scale (Bayyat et al., 2016) and practical pre-test of free style swimming skills performance, subjects executed both physical practice of the free style swimming skills performance during a pro-gram conceited of eighteen sessions, 3 sessions a week, for 6-weeks, 60 mints per session, and life skills development dialogues program which focused on certain life skills (Communications, team-work, self-confidence/self-Esteem, problem solving and decision-making/responsibility).After 6-weeks all subjects completed a post life skills questionnaire which measured the changes in their life skills level after learning the free style swimming skills performance, they also went through a post practical subjective performance evaluation post-test which measured their level of the free style swimming skills performance. Statistical analysis was processed by SPSS. The results showed significant differences between pre and post-test in life skills dimensions and significant differences between pre and post-test in free style swimming performance level for the subject of this study. In conclusions the educational course for swimming had a positive impact on free style swimming performance and on life skills for deaf students in the faculty of physical education at the University of Jordan
The relationship between psychological compatibility and academic achievement in swimming
This study aims to determine the relationship between psychological compatibility and academic achievement in swimming class, the subjects were (72) under graduate male students of physical education college at the University of Jordan. (M age = 19.4 SD =1.35). All subjects were students in swimming class and they were learning free style swimming skills. The learning scores for students were measured two times during the second semester in 2016; the subjects went through practical exams only, the med-term exam (30) grades, and the final-term exam (30) grades, the total grades score was out of (60). The researchers designed a questionnaire as a tool for this study to measures the degree of psychological compatibility for the subjects. The total scores for learning free style swimming skills and the scores for the questionnaire were compared to determine the relationship between psychological compatibility and academic achievement in free style swimming, Statistical treatment by using the (SPSS) program was done. The results showed that there was a relation between psychological compatibility and academic achievement during learning free style swimming skills
FRAGMATIC: A randomised phase III clinical trial investigating the effect of fragmin® added to standard therapy in patients with lung cancer
Background
Venous thromboembolism (VTE) occurs when blood clots in the leg, pelvic or other deep vein (deep vein thrombosis) with or without transport of the thrombus into the pulmonary arterial circulation (pulmonary embolus). VTE is common in patients with cancer and is increased by surgery, chemotherapy, radiotherapy and disease progression. Low molecular weight heparin (LMWH) is routinely used to treat VTE and some evidence suggests that LMWH may also have an anticancer effect, by reduction in the incidence of metastases. The FRAGMATIC trial will assess the effect of adding dalteparin (FRAGMIN), a type of LMWH, to standard treatment for patients with lung cancer.
Methods/Design
The study design is a randomised multicentre phase III trial comparing standard treatment and standard treatment plus daily LMWH for 24 weeks in patients with lung cancer. Patients eligible for this study must have histopathological or cytological diagnosis of primary bronchial carcinoma (small cell or non-small cell) within 6 weeks of randomisation, be 18 or older, and must be willing and able to self-administer 5000 IU dalteparin by daily subcutaneous injection or have it administered to themselves or by a carer for 24 weeks. A total of 2200 patients will be recruited from all over the UK over a 3 year period and followed up for a minimum of 1 year after randomisation. Patients will be randomised to one of the two treatment groups in a 1:1 ratio, standard treatment or standard treatment plus dalteparin. The primary outcome measure of the trial is overall survival. The secondary outcome measures include venous thrombotic event (VTE) free survival, serious adverse events (SAEs), metastasis-free survival, toxicity, quality of life (QoL), levels of breathlessness, anxiety and depression, cost effectiveness and cost utility.
Trial registration
Current Controlled Trials ISRCTN8081276
Performance of CMS muon reconstruction in pp collision events at sqrt(s) = 7 TeV
The performance of muon reconstruction, identification, and triggering in CMS
has been studied using 40 inverse picobarns of data collected in pp collisions
at sqrt(s) = 7 TeV at the LHC in 2010. A few benchmark sets of selection
criteria covering a wide range of physics analysis needs have been examined.
For all considered selections, the efficiency to reconstruct and identify a
muon with a transverse momentum pT larger than a few GeV is above 95% over the
whole region of pseudorapidity covered by the CMS muon system, abs(eta) < 2.4,
while the probability to misidentify a hadron as a muon is well below 1%. The
efficiency to trigger on single muons with pT above a few GeV is higher than
90% over the full eta range, and typically substantially better. The overall
momentum scale is measured to a precision of 0.2% with muons from Z decays. The
transverse momentum resolution varies from 1% to 6% depending on pseudorapidity
for muons with pT below 100 GeV and, using cosmic rays, it is shown to be
better than 10% in the central region up to pT = 1 TeV. Observed distributions
of all quantities are well reproduced by the Monte Carlo simulation.Comment: Replaced with published version. Added journal reference and DO
Performance of CMS muon reconstruction in pp collision events at sqrt(s) = 7 TeV
The performance of muon reconstruction, identification, and triggering in CMS
has been studied using 40 inverse picobarns of data collected in pp collisions
at sqrt(s) = 7 TeV at the LHC in 2010. A few benchmark sets of selection
criteria covering a wide range of physics analysis needs have been examined.
For all considered selections, the efficiency to reconstruct and identify a
muon with a transverse momentum pT larger than a few GeV is above 95% over the
whole region of pseudorapidity covered by the CMS muon system, abs(eta) < 2.4,
while the probability to misidentify a hadron as a muon is well below 1%. The
efficiency to trigger on single muons with pT above a few GeV is higher than
90% over the full eta range, and typically substantially better. The overall
momentum scale is measured to a precision of 0.2% with muons from Z decays. The
transverse momentum resolution varies from 1% to 6% depending on pseudorapidity
for muons with pT below 100 GeV and, using cosmic rays, it is shown to be
better than 10% in the central region up to pT = 1 TeV. Observed distributions
of all quantities are well reproduced by the Monte Carlo simulation.Comment: Replaced with published version. Added journal reference and DO
Azimuthal anisotropy of charged particles at high transverse momenta in PbPb collisions at sqrt(s[NN]) = 2.76 TeV
The azimuthal anisotropy of charged particles in PbPb collisions at
nucleon-nucleon center-of-mass energy of 2.76 TeV is measured with the CMS
detector at the LHC over an extended transverse momentum (pt) range up to
approximately 60 GeV. The data cover both the low-pt region associated with
hydrodynamic flow phenomena and the high-pt region where the anisotropies may
reflect the path-length dependence of parton energy loss in the created medium.
The anisotropy parameter (v2) of the particles is extracted by correlating
charged tracks with respect to the event-plane reconstructed by using the
energy deposited in forward-angle calorimeters. For the six bins of collision
centrality studied, spanning the range of 0-60% most-central events, the
observed v2 values are found to first increase with pt, reaching a maximum
around pt = 3 GeV, and then to gradually decrease to almost zero, with the
decline persisting up to at least pt = 40 GeV over the full centrality range
measured.Comment: Replaced with published version. Added journal reference and DO
Search for new physics with same-sign isolated dilepton events with jets and missing transverse energy
A search for new physics is performed in events with two same-sign isolated
leptons, hadronic jets, and missing transverse energy in the final state. The
analysis is based on a data sample corresponding to an integrated luminosity of
4.98 inverse femtobarns produced in pp collisions at a center-of-mass energy of
7 TeV collected by the CMS experiment at the LHC. This constitutes a factor of
140 increase in integrated luminosity over previously published results. The
observed yields agree with the standard model predictions and thus no evidence
for new physics is found. The observations are used to set upper limits on
possible new physics contributions and to constrain supersymmetric models. To
facilitate the interpretation of the data in a broader range of new physics
scenarios, information on the event selection, detector response, and
efficiencies is provided.Comment: Published in Physical Review Letter
Compressed representation of a partially defined integer function over multiple arguments
In OLAP (OnLine Analitical Processing) data are analysed in an n-dimensional cube. The cube may be represented as a partially defined function over n arguments. Considering that often the function is not defined everywhere, we ask: is there a known way of representing the function or the points in which it is defined, in a more compact manner than the trivial one
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