Examining the effect of motivational regulations on intention and actual participation in physical activities

2007 ◽  
Author(s):  
Vassilis Barkoukis ◽  
George Lambropoulos ◽  
Haralambos Tsorbatzoudis
Keyword(s):  
Physical Activities ◽  
Actual Participation

Actin filaments in two spermatozoa of crustacea decapoda

1990 ◽  
Vol 48 (3) ◽  
pp. 70-71
Author(s):  
E. Dupré ◽  
G. Schatten
Keyword(s):  
Electron Microscopy ◽  
Actin Filaments ◽  
Low Voltage ◽  
Active Role ◽  
Main Body ◽  
Robinson Crusoe ◽  
Decapod Crustaceans ◽  
Actual Participation ◽  
Voltage Scanning ◽  
Scanning Electron

Sperm of decapod crustaceans are formed by a round or cup-shaped body, a complex acrosome and one a few appendages emerging from the main body. Although this sperm does not have motility, it has some components of the cytoskeleton like microtubules, which are found inside the appendages. Actin filaments have been found in the spike of penaeidae sperms. The actual participation of the crustacean decapod sperm cytoskeleton during fertilization is not well understood. Actin is supposed to play an active role in drawing the penaeidae shrimp sperm closer to the egg after bending of the spike. The present study was aimed at the localization of actin filaments in sperm of the Robinson Crusoe island lobster, Jasus frontalis and in the crayfish Orconectes propincus, by fluorescent probes and low voltage scanning electron microscopy.

Strontium 87m Scanning of Pelvic Bones

1968 ◽  
Vol 07 (01) ◽  
pp. 28-36 ◽  
Author(s):  
Władysław Jasiński ◽  
Janina Malinowska ◽  
Henryk Mackiewicz ◽  
Henryk Siwicki ◽  
Krystyna Lukawska
Keyword(s):  
Body Weight ◽  
Differential Diagnosis ◽  
Early Diagnosis ◽  
Femoral Neck ◽  
Early Period ◽  
Early Recurrence ◽  
Physical Activities ◽  
External Irradiation ◽  
Pelvic Bones ◽  
Strontium 87M

SummaryThe purpose of this investigation was to study the accumulation of 87mSr in the proximal parts of the femoral bones of patients treated previously by external irradiation due to cancer of the uterine cervix. It was assumed that this method may be used in the future for the early diagnosis of postirradiation changes of bone (osteoradionecrosis).The incidence of postirradiation changes of the femoral neck among 5735 patients treated between 1950 and 1961 at the Department of Gynaecology of the Institute, was 0.8%. In the early period of postirradiation changes the patients complain only of pain and limitation of physical activities. If radiological and gynaecological findings were negative, the differential diagnosis between early recurrence and early osteoradionecrosis became impossible.49 selected patients were scanned after intravenous injection of 10—115 μCi of 87mSr per kg of body weight (0.5 up to 6.0 mCi). Illustrative cases of normal pelvic bones as well as postirradiation changes are presented and discussed. The authors conclude that the findings justify further systematic studies on the morphology of accumulation of 87mSr in the bones.

Morphology of muscle attachment sites and microarhitecture of underlying bone as the markers of physical activities of past populations

2013 ◽  
Author(s):  
Ksenija Djukic ◽  
Petar Milovanovic ◽  
Michael Hahn ◽  
Bjoern Busse ◽  
Michael Amling ◽  
...  
Keyword(s):  
Physical Activities ◽  
Muscle Attachment ◽  
Attachment Sites ◽  
Muscle Attachment Sites
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