5-alpha reductase inhibitors. The medications in this category shrink prostate by preventing hormonal changes that cause prostate growth. The mechanism of action is that 5-alpha reductase inhibitor medication blocks the conversion of testosterone to DHT resulting in lower intraprostatic levels of DHT. This process causes change in epithelial cell of the transition zone. This process leads to inhibition of prostatic growth‚ involution‚ and apoptosis. Eventually‚ prostate volume and progression of
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yes-or- no issue. This is the dilemma of the authorities. If properly used‚ the handphone can bring more benefits than harm especially to children. When television first made its debut in the 1960s‚ everybody imagined that it would have a negative effect on children. Parents fret over their children’s addiction to the ’idiot box’ and the neglect of their studies. Their fears were unfounded as they soon found that if strictly contolled‚ the television was as harmless as the radio or the gramophone
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Cellular organelle structure and function Nucleus The Nucleus is comprised of the pore perforated nuclear membranes‚ nucleoplasm‚ chromatin and the nucleolus at the core. The nuclear envelope consists of an inner and outer membrane that forms the outer structure. Contained within the nuclear membrane are nucloplasm which is the fluid medium in which the chromatin is present‚ chromatin being the genetic material. At the core of the nucleus is the nucleolus‚ where ribosomes are synthesized. The
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Erasistratus’s model of the respiration and blood distribution is considerably more mechanical than Aristotle’s due to the technological advances that were thriving in Alexandria compared to Athens. Both scientists base their models of respiration and blood distribution in the body from technological-ladenness of observation. Erasistratus proposes that heart uses force propulsion to distribute air and blood throughout the arteries and veins. His concept focuses on “the filling towards what is being”
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Cellular Network Planning and Optimization Part II: Fading Jyri Hämäläinen‚ Communications and Networking Department‚ TKK‚ 17.1.2007 Outline Modeling approaches Path loss models Shadow fading Fast fading 2 Modeling approaches 3 Fading seen by moving terminal Fast fading Power Modeling approach: +20 dB 1. Distance between TX and RX => path loss 2. Shadowing by large obstacles => shadow fading 3. Multi-path effects => fast fading - 20 dB Path loss Lognormal
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featured a bowler and an umpire in a game of cricket... Idea’s Launch in Mumbai !dea’s launch in Mumbai circle was recognized as the world’s largest single city launch of telecom services till 2008. Idea spent Rs.8 billion to cover more than 1000 cellular sites in Mumbai. It used extensive out-of-home (OOH) media like bill boards and bus stop shelters for pre-launch teasers. Idea used the then prevailing controversy of natives Vs migrants in Mumbai city... The Online Initiatives Idea took its ’What
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In a cellular layout‚ a company such as Cutco will group dissimilar machines into work centers called cells that process families of parts with similar shapes or processing requirements. Each cell at Cutco has its own job to do for the team before it can reach
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Stress and Cellular Membranes Bio Lab SBI 4U1 Due: Sept 24th‚ 2010 For: Ms. Barton By: Ameema Saeed Introduction: (See attached lab) Purpose: (See attached lab) Hypotheses: Tap water will cause no damage to the membranes. The extreme temperatures of the water cooled to 0°C‚ and heated to 94-100°C will greatly damage the membranes. Extreme heat will be more damaging than extreme cold. The more concentrated the solvent‚ the more damage it will cause to the membranes‚ therefore the
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The Cellular Basis of Reproduction and Inheritance Chapter 8 Order Reproduction Growth and development Energy processing Response to the environment Regulation Evolutionary adaptation http://www.youtube.com/watch?v=46Xh7OFkkCE Introduction Cancer cells start out as normal body cells undergo genetic mutations lose the ability to control the tempo of their own division run amok‚ causing disease In a healthy body‚ cell division allows for: growth the replacement of damaged cells development from
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define aging as time dependent or age progressive reduction in intrinsic physiological function leading to a high specific mortality rate and a decrease in specific reproductive rate. Cellular aging therefore‚ can be described as an increased susceptibility to cell death caused by the loss of cellular functions such as cell division‚ cell communication‚ transport and delivery. A cell ages gradually until it gets to the senescence stage which is a process by which a
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