The Pathways of Plant Water Movement Aim: To investigate the movement of materials in xylem Materials: Fresh celery stalk with leaves Eosin solution (1%) A plastic container with tap water A sharp scalpel Hand lens A light microscope Two glass slides A cover slip Risk Assessment and Safety Precautions: Risk Assessment Safety Precautions Eosin solution- can cause stains Always use gloves when handling Scalpel is dangerous and can cause cuts Always handle carefully
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October 23‚ 2012 English 101 Queenan Versus Friedman Transparency refers to having information available and accessible to the public. It exists in all facets of life‚ those including business‚ politics‚ education‚ media‚ social networks‚ law enforcement‚ etc. Everything that was personal and private before technology made its way to being public to the world‚ is no longer private after all. The aspect of keeping certain personal information and actions private is rapidly vanishing in our ever
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Biology Report About TEM & SEM There are two types of electron microscopes‚ a Transmission electron microscope (TEM) and a scanning electron microscope (SEM)‚ which both work in different .ways‚ at different magnifications/ In a transmission electron microscope‚ the electron beam passes through a very thin prepared sample. The electrons pass through the denser parts of the sample less easily‚ which gives some contrast. The final image produced from a TEM is two-dimensional. The magnification
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microscopy? An electron microscope (EM) is a type of microscope that uses an electron beam to illuminate a specimen and produce a magnified image. An EM has greater resolving power than a light microscope and can reveal the structure of smaller objects because electrons have wavelengths about 100‚000 times shorter than visible light photons. They can achieve better than 50 pm resolution and magnifications of up to about 10‚000‚000x whereas ordinary‚ non-confocal light microscopes are limited by diffraction
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electron microscope is sufficient to operate the particular machine in the future. During the experiment‚ two different gold plated samples are analysed under the SEM and compositional and topographic information is identified and analysed. Both the information is derived by changing the working distance‚ accelerating voltage‚ aperture size‚ probe current‚ resolution and magnification. AIM To analyse samples and obtain micrographs of the surface‚ using a scanning electron microscope. The experimental
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Microscopes were invented in the 1600s. Robert Hooke first looked at a thin slice of cork in 1665; he saw "a lot of little boxes." These little boxes first reminded of the little rooms monks lived in‚ so he called them cells. Hooke observed the same pattern in the stems and roots of carrots and other plants. What Hooke still did not know‚ however‚ was that cells are the basic units of living things. Ten years later‚ the Dutch scientist Anton van Leeuwenhoek focused a microscope on what seemed to
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This standard has been approved for use by agencies of the Department of Defense. 1. Scope 1.1 The primary objective of metallographic examinations is to reveal the constituents and structure of metals and their alloys by means of the light microscope. In special cases‚ the objective of the examination may require the development of less detail than in other cases but‚ under nearly all conditions‚ the proper selection and preparation of the specimen is of major importance. Because of the
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casted by dipping method after the NRL formulation was pre-vulcanized at 70oC. The observed parameter includes crosslink density‚ tensile strength‚ tensile modulus and elongation at break. The morphology of film was studied via Scanning Electron Microscope (SEM). The results
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GEK1509: Introduction to the Nanoworld Short Project Report I Done by: Nguyen Huy Anh – A0088386L NUS Business School Nanoscience and nanotechnology is an area of science which study the behavior and manipulating objects on atomic or molecular scale. This is a relatively new area of science‚ which only emerged in the past 40 years‚ since Richard Feynman’s famous lecture “ There are plenty of rooms in the bottom” in 1959. This area surely brings many challenges‚ but at the same time opens limitless
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The winged bean (Psophocarpus tetragonolobus) is a twining‚ perennial herbaceous legume which can climb to 3-4 meters (Kantha and Erdman‚ 1985). As a leguminous plant‚ winged bean can be used in almost all parts of the plant. Fruit‚ leaves‚ flowers‚ bulbs and seed are edible and contain high protein and oil (Kotaru et al.‚ 1987; Dwiani et al.‚ 2014). The mature‚ dry seed is the most nutritious part of the winged bean. Their outstanding nutritive quality is based‚ above all‚ on their high protein
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