Prostate Cancer 1. Natural history of prostate cancer Prostate cancer is the most commonly diagnosed cancer in men at an estimated 24% of all new cancer cases. Even though the 5-year survival rate of localized disease is close to 100%‚ the 5-year survival rate of metastatic disease is still very low at 30%. In advanced prostate cancer‚ metastasis occurs in distant organs such as the brain‚ liver‚ lungs‚ lymph nodes‚ and bone. Particularly‚ 90% of patients with advanced prostate cancer present metastasis
Premium Cancer Prostate cancer Metastasis
This paper is about how the plant cells and solar cells are similar to each other as well as how they are different to one another. In addition this paper explains how the laws of thermodynamics apply to each of the plant and solar cells system. Plant Cells and Solar Cells Photosynthesis is the process of producing and releasing oxygen in the air. It needs sunlight‚ carbon dioxide and
Premium Energy Thermodynamics Photosynthesis
I will start by describing the carbon cycle and how elements of my lifestyle impact the cycle. Photosynthesis converts the Carbon dioxide gas that exists in the atmosphere and in dissolved water to organic carbon. Organic carbon is brought back into carbon dioxide gas by a process called respiration. There are sources of organic carbon underground in the form of fossil fuels‚ human emissions and volcanic activity brings the stored carbon back into the cycle. As a human being who feed‚ move‚ breath
Premium Carbon dioxide Carbon
The business cycle is like a roller coaster and this roller coaster definitely has its dips and peaks. In the cycle there are expansionary periods‚ peaks‚ downturns‚ and troughs. Each one is part of and essential in the cycle. Like a roller coaster you will go up and reach a peak and then you will have to drop. Although just because you drop does not mean you will reach the lowest point of the ride. Just like a coaster the business cycle has its high peaks and plunging drops. So lets start the
Free Unemployment Inflation Macroeconomics
The rock cycle involves of a chain of continual progressions through which earth materials change from one form to another over time. Some processes in the rock cycle happen over millions of years and others occur much more quickly. There is no real starting or completion to the rock cycle; however‚ it may be appropriate to begin investigating the rock cycle with magma (Bergman 2005). Magma‚ or molten rock‚ forms only at certain locations within the earth‚ mostly along plate boundaries. Magma crystallizes
Premium Igneous rock Metamorphic rock Sedimentary rock
specific markets. While macroeconomics is a broad field of study‚ there are two areas of research that are emblematic of the discipline: the attempt to understand the causes and consequences of short-run fluctuations in national income (the business cycle)‚ and the attempt to understand the determinants of long-run economic growth (increases in national income). Macroeconomic models and their forecasts are used by both governments and large corporations to assist in the development and evaluation of economic
Premium Macroeconomics Keynesian economics Inflation
Nitrogen cycle Nitrogen gas is a colourless‚ odourless and non-toxic gas which makes up about 78 percent of the atmosphere. Nitrogen is extremely important to living material; in fact plants‚ animals and humans could not live without it. Sprent (1987) argued that nitrogen cycle is the most important process to living organisms after the carbon cycle. But nitrogen exists as dinitrogen (N2) in the atmosphere‚ which living things‚ particularly plants‚ cannot synthesize (citation) The process of nitrogen
Premium Nitrogen
and animal cells have several differences and similarities. For example‚ animal cells do not have a cell wall or chloroplasts but plant cells do. Animal cells are round and irregular in shape while plant cells have fixed‚ rectangular shapes. Animal Cell Plant Cell Cell wall Absent Present (formed of cellulose) Shape Round (irregular shape) Rectangular (fixed shape) Vacuole One or more small vacuoles (much smaller than plant cells). One‚ large central vacuole taking up 90% of cell volume.
Premium Cell Organelle Eukaryote
THE WATER CYCLE Introduction: The water around us has been All the water around is has been here for many‚ many years. The reason is because the same water is just around a cycle. There are several steps in this cycle. In my opinion‚ this is a very interesting and fun project to do. Problem: What is the water cycle? Research: Water is vital for every living thing. When the Sun heats‚ it causes the water in the oceans‚ ponds‚ lakes and even puddles in the street to warm and evaporate
Premium Water Evaporation
The Brayton Cycle (Jet Engine) Purpose and Objective: The purpose and objective of this experiment is to understand the basic operation of a brayton cycle also to demonstrate the application of basic equations for Brayton cycle analysis. Technical Background: The Brayton cycle depicts the air standard model of a gas turbine power cycle and is used in all applications involving turbine engines; such as jet engines. A simple gas turbine is comprised of three
Premium Gas turbine Gas compressor