EFFECTIVENESS OF ORGANIC SUBSTANCES ON THE MORTALITY OF APHIDS HABITAUTED ON LONGYARD BEANS Chapter 1 Introduction of the Study This chapter will consist of five parts; (1) Background of the study‚ (2) Statement of the Problem and Hypotheses‚ (3) Significance of the Study‚ (4) Definition of Terms and (5) Delimitation of the Study. Part One‚ Background and Conceptual Framework‚ will present the reason for choosing the problem‚ will present the background and basis of conducting this study‚
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1. Introduction Plumbago zeylanica L. (Plumbaginaceae) is an important medicinal plant greatly valued in Ayurveda for treatment of cough‚ asthma and gastrointestinal disorders. In Sushrutha Samhitha it has been described as antiseptic‚ febrifuge‚ detoxicant‚ antihelminthic and considered valuable for curing migraine‚ jaundice‚ urinary calculi‚ internal abscesses‚ seminal weakness‚ vaginal discharges and insanity. In the Arabian Peninsula‚ it is mainly distributed over Oman‚ Yemen and the Southwestern
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Fungus From Wikipedia‚ the free encyclopedia (Redirected from Fungi) "Fungi" redirects here. You may be looking for Fungi (music) or Fungus (XM). Fungi Temporal range: Early Devonian–Recent (but see text) PreЄЄOSDCPTJKPgN Clockwise from top left: Amanita muscaria‚ a basidiomycete; Sarcoscypha coccinea‚ an ascomycete; bread covered in mold; a chytrid; a Penicillium conidiophore. Scientific classification Domain: Eukaryota (unranked): Opisthokonta Kingdom: Fungi (L.‚ 1753) R.T. Moore
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Chapter 1 The Problem and Its Background Introduction Cigarette smoking is now becoming a big issue through out the world and especially in the Philippines. Because of this‚ the researcher finds it interesting to make a research paper about it. The researcher wants to know the cause and effect of cigarette smoking amongst her fellow student in the City University of Pasay. The researcher thinks that everyone knows the side effects that the cigarette is giving to its user but the hardest
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Mutagens may be of physical‚ chemical or biological origin. They may act directly on the DNA‚ causing direct damage to the DNA‚ and most often result in replication error. Some however may act on the replication mechanism and chromosomal partition. Many mutagens are not mutagenic by themselves‚ but can form mutagenic metabolites through cellular processes. Such mutagens are called promutagens. [edit]Physical mutagens Ionizing radiations such as X-rays‚ gamma rays and alpha particles may cause DNA
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Caffeine is probably the most commonly used addictive drug. This drug is found in a number of things ingested by people. It belongs to a group of nitrogen bases called purines. Because caffeine possesses these base-like properties‚ it is described as an alkaloid. They usually taste bitter and often are physiologically active in humans. The structure of caffeine is shown below. Figure 1: Structure of Caffeine In this experiment‚ you are going to make a small but strong cup of tea and extract the
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caffeine you generally think of it in‚ Coffee‚ tea‚ soda‚ and chocolate‚ and its part of almost all college students daily diet. I. Caffeine A. What is caffeine 1. According to the Merriam-Webster dictionary caffeine is defined as a bitter alkaloid C8H10N4O2 (not that any of you care) found especially in coffee‚ tea‚ cacao‚ and kola nuts and used medicinally as a stimulant and diuretic 2. The word caffeine comes from the French word café‚ meaning coffee. 3. most widely used drug
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Pica Overview Pica is a medical disorder characterized by an appetite for substances largely non-nutritive or an abnormal appetite for some things that may be considered foods‚ such as these actions to be food ingredients. In order for these actions to be considered pica‚ they must persist for more for more than one month at an age where eating such objects is considered developmentally inappropriate. History The term pica comes from the Latin word meaning magpie‚ presumably named after this
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pharmacokinetics of a drug describes the journey of a drug through the body i.e. its absorption‚ bioavailability‚ distribution‚ metabolism and excretion. Opioids are substances (endogenous or synthetic)‚ which produce ‘opiate-like effects’. Opiates are alkaloids derived from the Papaver somniferum poppy e.g. Morphine‚ Codeine (a morphine-like agonist) and Methadone (a synthetic analogue of morphine) and are primarily used as analgesics.[1] Discussion: Morphine has a 4-ring structure with a tertiary nitrogen
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(Swartz and Edmonston strains) in vitro. J African Health Sci‚ 2002: 2: 2-10. 33. Serkedjieva J‚ Velcheva M. In vitro anti-influenza virus activity of the pavine alkaloid (-)-thalimonine isolated from Thalictrum simplex L. Antivir Chem Chemother‚ 2003: 14: 75-80. 34. Szlavik L‚ Gyuris A‚ Minarovits J‚ Forgo P‚ Molnar J‚ Hohmann J. Alkaloids from Leucojum vernum and antiretroviral activity of Amaryllidaceae alkaloids.Planta Med‚ 2004: 70: 871-873. 35. Wang JH‚ Nie HL‚ Huang H‚ Tam SC‚ Zheng YT. Independency
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