UMT 11th International Annual Symposium on Sustainability Science and Management 09th – 11th July 2012‚ Terengganu‚ Malaysia Irrigation Scheduling for Onion (Allium cepa L.) at Various Plant Densities in a Semi-Arid Environment A.O.A. Dorcas 1‚ M.D. Magaji1‚ A. Singh2‚ R. Ibrahim1 and Y. Siddiqui3 Department of Crop Science‚ UsmanuDanfodiyo University‚ Sokoto‚ P.M.B. 2346‚ Sokoto‚ Sokoto State‚ Nigeria. 2 A. Singh‚ School of Biosciences‚ Faculty of Science‚ The University of Nottingham‚ Malaysia
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Effect of plant densities and phosphorus levels on the growth and yield of vegetable cowpea (Vigna unguiculata L.) var. Arka Garima K. RAVI KUMAR1 AND V. SUDHA VANI2 Department of Horticulture‚ College of Horticulture‚ Venkataramannagudem-534 101‚ Andhra Pradesh‚ India. E-mail : ravikuna4u@gmail.com ABSTRACT A field experiment was conducted at College of Horticulture‚ Venkataramannagudem to study the effect of plant density and phosphorus levels on the growth and yield of vegetable cowpea
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The Effect of Catharanthus roseus (Kumintang) Leaf Extract on the Arthritis Score and Blood Vessel Density in Fibroblast Growth Factor-2 and Carrageenan-induced Arthritis in Rats Rachelle Zolla S. Ciudadano Jan Jessica I. Rosit Abe Nicole Patrick B. Salvador Syaza Farrah Samanodi Charlene Monica Sandoval Nessa Grace S. Sarona Cherie Anne V. Songcaya Francris C. Talon Cherrie A. Tapia Herminigilda Nartatez‚ M.D. Ma. Eva C. San Juan‚ MS Pharm‚ MS Biomed‚ FPGEC Melinda C. Tagle‚ M.D
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"Cartesian" is named after the French mathematician and philosopher Rene Descartes‚ who lived from 1596 until 1650. Cartesian diver lab is used commonly in scientific experiments to illustrate principle of buoyancy. The objective of this Cartesian diver lab is to demonstrate Pascal ’s law and Archimedes ’ principles. Observation is the key to conduct this experimental study of the Cartesian diver. First a 2-liter bottle is filled with water to almost all the way to the top‚ then prepare the diver
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Cartesian Diver Essay The Cartesian Diver is named after the French scientist Rene Descartes. This experiment is supposed to show buoyancy‚ density and different forms of matter at work‚ when demonstrated. To create the Cartesian Diver‚ you’ll simply need: • A empty plastic bottle • A plastic eye dropper • Water 1. Fill the bottle with water‚ but be cautious of spills. 2. Very carefully‚ drop the dropper inside the bottle. Then‚ seal the cap on very tightly. 3. Squeeze the bottle‚ but not too
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dropper’s density. When the density of the dropper increased‚ it became more dense than the water it was in‚ causing the dropper to sink. When pressure was released‚ the air was sucked back into the dropper making it less dense than the water again‚ so it floats back up to the top of the bottle.
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Experimentally this appears in the fact that the submerged object apparently weighs less by an amount equal to the weight of the liquid displaced. The buoyant force can be expressed as http://hyperphysics.phy-astr.gsu.edu/hbase/pbuoy.html#arch3 Buoyancy Buoyancy arises from the fact that fluid pressure increases with depth and from the fact that the increased pressure is exerted in all directions (Pascal’s principle) so that there is an unbalanced upward force on the bottom of a submerged object. Since
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March 4‚ 2010 Egg Buoyancy and Density: Can you make an egg float by changing the density of water? If you put an egg in tap water‚ it will sink to the bottom. If you add enough salt‚ the egg will float to the surface. Density is the mass or volume of an object. It’s easier to think of it as the thickness of the object. Buoyancy is the force that allows an object to float. I performed a fun experiment to see how increasing density of water could make an egg float or submerge
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2. The mass of the package would be 2 kilograms. 3. The mass of the package would stay the same. 4. The volume of this object would be 80cm3. 5. The volume of the object would be 22mL and 22cm3 6. Density relates to volume and mass. 7. The density of this object would be 5g/cm3 8. The density of a material will always be the same because it’s the same material just in a smaller ratio. 9a. This mystery substance must be water. 9b. The mystery substance must be granite. 9c. the volume of 10
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objects with different amount of density and put them each in ten cups of water. I then put in teaspoons of water and recorded whether or not the objects floated until all the objects were floating. I was able to see how an objects density affects how much salt is needed to make it float. Page 2 Introduction/ Research When trying to make an object float it depends on its density. Density is the “mass per unit volume.”[7] An object floats if it has less density then water. Objects like a boat
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