MYOCARDIAL INFARCTION Myocardial infarction (MI) or acute myocardial infarction (AMI)‚ commonly known as a heart attack‚ is the interruption of blood supply to part of the heart‚ causing heart cells to die. This is most commonly due to occlusion (blockage) of a coronary artery following the rupture of a vulnerable atherosclerotic plaque‚ which is an unstable collection of lipids (fatty acids) and white blood cells (especially macrophages) in the wall of an artery. The resulting ischemia (restriction
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350 © IWA Publishing 2013 Journal of Water Supply: Research and Technology—AQUA | 62.6 | 2013 Behaviour of cyanobacterial bloom material following coagulation and/or sedimentation Lionel Ho‚ Albane Barbero‚ Jennifer Dreyfus‚ David R. Dixon‚ Feng Qian‚ Peter J. Scales and Gayle Newcombe ABSTRACT The global increase in detection of cyanobacteria and their metabolites has prompted greater emphasis in optimizing water treatment options for their effective removal. In particular
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taxon. Prokaryotes does not have a membrane surrounding its genetic material (DNA) they make proteins simultaneously to read their genetic code. Eukaryotes have a membrane called a nuclear envelope surrounding their DNA‚ forming a nucleus. Electron microscopy has revealed that prokaryotes typically lack various types of internal structures bound with phospholipids membranes that are present in eukaryotic cells. Prokaryotes cells are not found in human and eukaryotic cells are. Prokaryotic cells reproduce
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Infineon Technologies AG |DELTA ELECTRONICS INTERNATIONAL LIM |Name: |Ping Eng Teo | |Alina |Department: |IFAP QM IMM | | |Telephone: |(2) 2652 6926 | |
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Before the creation of microscopes‚ misconceptions about how organisms were originated arose. The idea of spontaneous generation‚ a theory held for nearly two millennia‚ proposed that organisms originated from inorganic matter. The lack of technology impeded on the development of cell theory‚ until the creation of the microscope. In 1663‚ Robert Hooke‚ proposed that organic matter was composed of what he called‚ cells. He was able to view these cells as he used a simple microscope‚ which allowed him
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Unit 1: fundamentals of science. Title An investigation of an onion cell using a light microscope. Aim: The aim of this investigation is to identify the cells within an onion skin using a light microscope. An onion cell is a plant cell which through the light microscope‚ it should outline the cell wall‚ cell membrane and the nucleus. Introduction: Plant cells have a cell wall and cell membrane which animal cells do not have. The cell wall provides support and is relatively rigid‚ which consists
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Historical development of the cell theory‚ in particular‚ the contributions of Robert Hooke and Robert Brown. • 1665 English scientist Robert Hooke used microscope to examine thin slices of cork and saw small box-like compartments he called cells. He was first to realise plant material had organised structure at microscopic level. (compound microscope) • 1831 Scottish Botanist Robert Brown was involved in a dispute about how pollination and fertilisation occurred in plants. During his study with orchids
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Comparison microscope Stereoscopic microscope Micrometer caliper chronograph A comparison microscope is a device used to analyze side-by-side specimens. It consists of two microscopes connected by an optical bridge‚ which results in a split view window enabling two separate objects to be viewed simultaneously. This avoids the observer having to rely on memory when comHistory In the 1920s forensic ballistics was waiting at its inception. In
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Gently tap and brush the eggs onto the double-sided tape of the microscope slides; repeat this for the other 2 microscope slides. Examine the slides under the microscope. Count the number of eggs on the slide; repeat for the other 2 petri dishes. Record the data of number of eggs under “0 hours”. Place the microscope slide in the in the 0.5% petri dish‚ tape-side up‚ and place the lid on the dish. Repeat step step 14‚ but place each microscope slide in its appropriate salt solution. Allow the dishes to
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the examination of red blood cells (sheep)‚ plant cells (elodea)‚ and active transport in yeast. Under the microscope‚ we can determine the effects on plant and animal cells exposed to hypotonic‚ hypertonic‚ and isotonic sodium chloride solutions. Plant cells have a cell wall; however‚ animal cells do not. This is examined as a major difference between the two; therefore‚ under the microscope both cells appear much unique from one another. The animal cells examined appear as empty circles or ovals
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