The Nature of biology and science Cell theory: * All organisms are made of cells and the products of cells * All cells come from pre-existing cells * The cell is the smallest organisational unit Cells have an outer membrane‚ encloses fluid contents of cell (cytoplasm) Robert Hooke (1665): observed dead cells from bark Anton van Leeuwenhoek: described living cells Matthias Schleiden: plant issues Theodor Schwann: animal tissues Bacteria found without nucleus and lacking other membrane-bound
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The Chemical Basis of Life Chapter Objectives Opening Essay Explain why an understanding of chemistry and the properties of water are important aspects of biology. Elements‚ Atoms‚ and Compounds 2.1 Define matter‚ an element‚ a compound‚ and a trace element. 2.2 Explain how and why iodine‚ fluoride‚ and iron are added to the human diet. 2.3 Distinguish between the size‚ location‚ and properties of protons‚ electrons‚ and neutrons. 2.3 Define the atomic number and mass number of an atom
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MAE219 Review Prof. Y. Ngabonziza 1. The water in a tank is pressurized by air‚ and the pressure is measured by a multifluid manometer as shown in Figure 1. Determine the gage pressure of air in the tank if h1=0.2m‚ h2=0.3m‚ and h3=0.46m. Take the densities of mercury‚ water‚ and oil are given to be 13‚600‚ 1000‚ and 850 kg/m3‚ respectively. 2. A piston cylinder device initially contains 0.07m3 of nitrogen gas at 130KPa and 120oC. The nitrogen is now expanded
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Introduction Medical textiles‚ also known as biomedical textiles‚ are textile products and constructions for medical and biological uses‚ e.g.‚ first aid‚ clinical‚ or hygienic purposes. (SASMIRA‚ 2007) The term medical textile literally means textile used for medical purposes. Textile apart from being a vital part human life is long since been used in medical field‚ though the term has been coined very recently. Textile materials have wide range properties such as flexibility‚ elasticity‚ strength
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Industry Visit – NeWater Plant An industry visit to Changi NeWater plant took place on 22nd February 2013 under the supervision of Amity faculty‚ Aditya Gupta. It was for a duration of 3 hours and our guide in NeWater was Sharul Mustafa. The guide gave a brief history about Singapore and the reasons why this plant was started. It was a very informative and enriching experience that helped us in understanding the value of nature and optimizing use of limited resources. As a souvenir a bottle of NeWater
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protection and warmth (vellus – fine un-pigmented hair: terminal hair – course and pigmented) B. Sebaceous Glands – Secrete oily substance that lubricates hair shaft and water proofs the epidermis C. Sweat Glands – Produce perspiration for evaporative cooling D. Nails – Protect and stiffen distal tips of digits E. Sensory Receptors – Provide sensations of touch‚ pressure‚ temperature‚ pain Subcutaneous Layer – Stores lipids; attaches skin to deeper structures; cushions underlying tissues II
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The Mechanics of Water The Science of Nutrition Perhaps you have heard the phrase “water is life”. When it comes to the human body‚ nothing could be more accurate. The system of fluids in the body that water affects controls everything from nerve impulse to movement; it is even part of the very structure of our bodies. The following will discuss the vital connection between different systems in the body and how they use water to maintain proper health and function. We will discuss what happens
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articles were written on ‘energyindependent house’ and ‘a zero energy house’. These articles mainly wrote on the latest technologies available and the passive techniques which could be adapted. Moreover‚ only the energy demand for space heating/cooling‚ domestic hot water were accounted in the ‘zero’. In recent years‚ the ZEB concept has been revived into becoming something integrating many systems and societies. That is why there have been many definitions framed with different parameters
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. . . . . . . . . .. . . . 10 3. 2. 3. Crude oil system. . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . .. . . . . . . . . 10 3. 3.Preparation and supply of industrial water. . . . . . . . . . . . . . . . . . . . . .. . . . 11 3. 4. Cooling water in TPP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .11 3. 5. Drain and treatment of smoky gases. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3. 6. Drain of ashes and slag. . . . . . . . . .
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Introduction In order to study sustainable approaches to design‚ I’ve selected the building Z6 House‚ as the focus of short research report project. By studying Z6 House‚ I intend to focus on concepts and methods of sustainable design that the design employs as well looking in to its results. Some specific thoughts regarding such results are cost and gain of sustainable practices in terms of money and furthermore in terms of its occupants. Environmental and Technical Report Nujfa Adam 14767 5
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