The electron is a fundamental subatomic particle that carries a negative electric charge. It is a spin-½ lepton that participates in electromagnetic interactions‚ and its mass is less than one thousandth of that of the smallest atom. Its electric charge is defined by convention to be negative‚ with a value of −1 in atomic units. Together with atomic nuclei‚ electrons make up atoms; their interaction with adjacent nuclei is the main cause of chemical bonding. The name "electron" comes from
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Drug Cards Ramipril: Functional class: Antihypertensive Chemical class: ACE inhibitors Action: ACE inhibitors reduce ACE. ACE converts angiostenin I to angiostenin II‚ which narrows heart vessels‚ which causes high BP. ACE inhibitors prevent ACE from converting angiostenin I to angiostenin II. This results in the dilation of blood vessel‚ which lowers BP. Adverse effects: Hypotension‚ angina‚ headache‚ fatigue‚ proteinuria‚ ‚ rash‚ sweating‚ cough. Contraindications: breastfeeding children
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CONFIDENTIAL BM/APR 2010/TPT250 UNIVERSITI TEKNOLOGI MARA FINAL EXAMINATION COURSE COURSE CODE EXAMINATION TIME FUNDAMENTALS OF TRANSPORT TPT250 APRIL 2010 3 HOURS INSTRUCTIONS TO CANDIDATES 1. 2. 3. 4. This question paper consists of eight (8) questions. Answer only four (4) questions in the Answer Booklet. Start each answer on a new page. Do not bring any material into the examination room unless permission is given by the invigilator. Please check to make sure that this examination
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Experiment 2 : Transport Across Membrane Name : Matrix No : Group : B Semester : 1 Date of Experiment : 05.09.2013 Lecturer’s Name : Miss OBJECTIVE To study the effects of hypotonic‚ hypertonic and isotonic solutions on plant and animal cells. INTRODUCTION In cellular biology the term membrane transport refers to the collection of mechanisms that regulate the passage of solutes such as ions and small molecules through biological membranes‚ which are lipid bilayers
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Bridie Dunn Teacher Advanced Placement Language and Composition 25 August 2014 1984 Essay In the novel “1984” written by George Orwell the main character‚ Winston Smith‚ states that one man can control another by “making him suffer” (266). The Party in this novel is able to maintain control over its citizens by making them suffer both mental and physical torture. The mental torture of party members is very present throughout this novel. In this futuristic setting‚ a new language‚ Newspeak
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Do Electrons Really Exist? Science has defined the nature of the world through an assortment of things that are observed in the physical world and those that are unobservable‚ improvable theories that explain the world. Electrons are unobservable. We cannot experience their existence with our own human senses. Do electrons really exist‚ or are they just useful fictions? Antirealists would explain that they do not exist because you cannot observe them. Realists would argue that electrons
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Goh Biology SAC 3 “The Transport systems play an essential role in the survival of flowering plants and mammals” It is imperative that the organism’s cells have an ideal supply of the necessary materials to ensure its survival. At the same time‚ waste material must be removed to make room for the new material coming in and to avoid infection. Necessary substances and waste material merely move in and out of unicellular organisms by diffusion‚ osmosis or active transport due to direct contact with
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A brief evaluation of Hanson Private Label (HPL) will reveal signs of an excellent‚ growing‚ and well run company. There are no danger signs within the financials of HPL. The following have seen growth with every passing year: revenue‚ current assets‚ owner’s equity‚ net working capital‚ and sales (even groceries). The following categories have grown every year with the exception of 2005‚ where a higher than usual COGS caused a dip in gross margin – 15% versus a historically high teen’s percentage:
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Transport in Indonesia All transport modes play a role in Indonesia’s transport system and are generally complementary rather than competitive. Road transport is the predominant mode‚ accounting for about 70 percent of freight ton-km and 82 percent of passenger km. There are four unconnected railway networks in Java and Sumatra dedicated primarily to transport bulk commodities and long-distance passenger traffic. Sea transport is extremely important for economic integration and for domestic and
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Gaseous exchange and transport Movement of chemicals in plants and animals -Chemicals that are being moved into the body‚ within the body or out of the body are gases‚ this movement is known as gaseous exchange. -The gases being moved in our out of the body need to move across the surface area of the body‚ in most cases a special surface area has been developed. -The surface that the gases cross is called the respiratory surface and the gases move across this surface by the process of diffusion
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