The importance of this research is that it is one of the rare researches that touch on
the philosophy of science at the French philosopher Gaston Bachler, And the role played
by this philosopher in the development of the science of epistemology thr
ough the
epistemological concepts that he introduced to this science, Such as the concept of
epistemological obstacle and the concept of epistemological estrangement in addition to
the concept of temporal regression and the relationship of these concepts with each other,
which contributed to the enrichment of the epistemology and its evolution.
This search includes doing an analytical study to show the
outcomes of introduse the Thiessen Polygon method in calculate
the flow out of node in water distribution system ، and doing the
hydraulic calculation based on the new method’s outcomes and
comparing these outcomes with field measurements which
conducted in several control points .
This study aims to find out the relation between agility component and skill to
control the ball in terms of performance, the skill to control the ball is one of the basic
skills of soccer and it is related to the rest of the skills as is the case
for an agility which is
closely linked to the rest of fitness elements such as speeding, flexibility and power. The
Researcher used the descriptive method so as to appropriate the research objectives. The
study sample included (14) players from theTadamon sports Club in Latakia aged 13_ 14
years, The agility and the control of the ball were tested, to find out the relation between.
The statistical results of the study shows a significant correlation between the agility
element and skill of ball control and that refers to the effect of the agility on the
performance of the skill of the ball control in soccer .The researcher recommended the
development of agility element as an adjunct to perform the skill of the ball control.
