Tuesday, February 18, 2020

Movie review--photography Review Example | Topics and Well Written Essays - 250 words

--photography - Movie Review Example Fashion is something that defines a generation or a culture. That is why, during different time in history of humanity, there have been a variant in fashions trend. It is this fact that influenced Bill’s career and fascinates him. While on the street, Bill never minds being hit by car. This is depicted in the film where at some point he is in between traffic, which endangers him. He realizes this and admits that it is never easy to capture fashion in New York City. Again, Bill says he is never interested in celebrities free dresses neither is he a paparazzi. In the film, it is clear that the females have a rich orientation of fashion in their dress code than male. This is so because in Bill’s photo gallery, he has more females’ pictures than males’ (Bill, 46-51). In conclusion, Bill act of photographing and reporting to public influences the fashion trend of the day. Whenever Bill shared a new fashion, it could be noted afterwards that people could adopt the new fashion. Undoubtedly, bill had passion of his career since in several occasions he turned down monetary offers from

Monday, February 3, 2020

Human postural Sway Essay Example | Topics and Well Written Essays - 2500 words

Human postural Sway - Essay Example In this paper we present the observation where 10 healthy subjects of mean age 25 are examined to find out a relationship between postural sway during quite-stance and perturbation with and without muscle fatigue. We also observe the effect of vision on postural sway on both normal and fatigued conditions. Human control of upright body posture involves inputs from several senses (visual, vestibular, proprioceptive, somatosensory) and their central interactions. Multiple sensory systems of human body are involved in tandem for controlling quite standing. Studies show that there is an indirect and presumably cognitive relationship between visual effects on posture control and their intersensory interactions (BLMLEA. et al, 2006). During quite stance position, center of mass (COM) is stabilized over base of support by using low level muscular movements and body sways around the point of support like an inverted pendulum (Johansson R, Magnusson M, Akesson M. 1988). This led to the hypothesis of inverted pendulum. Any defect, alteration or malfunctioning of the sensory or motor components increases body sway and hence increases the muscle activity to maintain postural equilibrium (Dietz V. 1992). Minor perturbations occurring during normal stance can be counteracted by the regulation of ankle muscles (Schieppati M et al, 1994 and McClenaghan BA et al 1996). Muscle fatigue is a complex phenomenon that has been defined as a reduction in the force-generating capacity of muscles, regardless of the task performed (Bigland-Ritchie B, Woods JJ.1984). Though, how fatigues affect the postural control system is not clear there are several fatigue related mechanisms involved at different levels of the nervous system that could affect the regulation of these small forces. Muscle fatigue causes failure of transmission of neural signals and disables the muscles to respond to the neural currents (Bigland-Ritchie B, Woods JJ.1984). Muscle fatigue also alters the basic functioning of complete nervous system and causes failure of motoneurons excitement. Effects of a muscle fatigue on human postural sway can be studied by inducing momentary fatigue by physical exertion. Studies show a mild difference in effects of a fatigue on sway with and without vision (Lepers R. and Nardone A. et al). To examine the effects of a fatigue on human postural control, in this experiment muscle fatigue is induced in ankle