...A taxis and a tropism are both different types of responses which are determined to due a (directional) stimulus to enhance chances of survival and be in more favourable conditions for itself. A ‘taxis’ is present in motile organisms in which they respond directly to environmental changes by moving its whole body either towards a favourable stimulus or away from an unfavourable stimulus. There are a couple of ways to classify taxes depending on the effect of the stimuli. If the movement is towards the stimulus then it is known as photo taxis and if the movement is swaying away from the stimulus then it is known as negative photo taxis. Single-celled algae move towards light which increases their chance of survival as they are photosynthetic and need light to manufacture their food, this is an example of a positive photo taxis. Earthworms move way from light which increases their chances of survival because it takes them into the soil where they can conserve water, find food and avoid predators, this Is an example of a negative photo taxis. The prefix photo is dependent on the type of stimuli. When they are moving towards light it will be photo taxis, but if they are moving towards a certain area due to favourable conditions in terms of a chemical it is known as chemo taxis. A couple other types of taxis are thigmo taxis (a type of response due to touch) and thermo taxis (a type of response due to the change in the temperature) A ‘tropism’ is a directional growth response...
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...Reporters: VIANCA PAMELA DELOS REYES JESTER CRUZ CHAPTER 12: FLOWERING PLANTS In this chapter, you will study the structure of flowering plants, how they function, and how they respond to the environment. 1. FLOWERS, SEEDS, and FRUITS -Some flowers are large and showy. Some are small. Even though flowers look different, they have the SAME FUNCTIONS. Flowers are the structures of sexual reproduction in angiosperms. RECEPTACLE-enlarged end of the stem under the flower. SEPALS-Circle of green leaf-like parts found around the bottom of the flower. They cover and protect the developing bud. PETALS-is found inside the sepals. These are usually the bright colored parts you see in flowers. Petals surround the reproductive parts of the flower. STAMENS-slender structures with knobs on top are near the middle of the flower. The slender parts are the FILAMENTS and the knobs are the ANTHERS. The tall, vase like part in the middle of the flower are called the PISTIL. Notice the sticky stigma is supported by the STYLE. At the base of the pistil is the OVARY. Inside the ovary are one or more ovules. An egg is produced inside each ovule. PERFECT FLOWERS-have both stamens and a pistil. IMPERFECT FLOWERS-have either stamens or a pistil, but not both. HOW SEEDS AND FRUITS DEVELOP For seeds to form in Angiosperms, a pollen grain should be transferred from an Anther to a Stigma. Stigma helps trap the pollen. Recall chapter 11. When a seed begins...
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...is a buffet or fun and festivity. Wherever we go, we will be welcomed by people as warm as summer and that is the Filipino culture First, is that the Philippines is not an ethnically homogeneous country. There are some 170 languages spoken here and some cultures are very regionals such as the Ifugao art and handicraft. Second, the country was a colony for more than 350 years, this is not the case of countries such as Thailand or Korea. And the fact that it was colonized by the US after the Spanish had the consequence that contact with the Hispanic culture that existed in some families 100 years ago has been lost. Now most Filipinos have Spanish names and are Roman Catholics, but they speak Taglish and have a strong American cultural tropism. Perhaps with...
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...V. Racaniello page 1 Viral Pathogenesis This lecture will define and discuss the basic principles of viral pathogenesis, the entire process by which viruses cause disease. Viral disease is a sum of the effects on the host of virus replication and of the immune response. Interest in viral pathogenesis stems from the desire to treat or eliminate viral diseases that affect humans. This goal is achieved in part by identifying the viral and host genes that influence the production of disease. Progress in understanding the molecular basis of viral pathogenesis comes largely from studies of animal models. The mouse has become a particularly fruitful host for studying viral pathogenesis because the genome of this animal can be manipulated readily. In some cases, non-human hosts can be infected with the same viruses that infect humans, but close relatives of human viruses must often be used. Viral Entry Three requirements must be satisfied to ensure successful infection in an individual host: • Sufficient virus must be available to initiate infection • Cells at the site of infection must be accessible, susceptible, and permissive for the virus • Local host anti-viral defense systems must be absent or initially ineffective. To infect its host, a virus must first enter cells at a body surface. Common sites of entry include the mucosal linings of the respiratory, alimentary, and urogenital tracts, the outer surface of the eye (conjunctival membranes or cornea), and the skin (Fig. 1). Figure...
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...The question of the Psychoanalytic and Behaviorist perspective and their methods to find the answer Psychology has been around for a long time and, within that time, has expanded and contracted with its theories and perspectives. A few of these perspectives sometimes coalesce while others sometimes completely oppose each other. None however, seem to do both like the Psychoanalysis and Behaviorist perspectives, both of which ask the same questions but use very different methods to find the answers. Psychoanalysis was said to be the most influential system of psychology and was pioneered by Sigmund Freud, an Austrian psychologist in Vienna, during the 19th century. Freud was influenced by several significant individuals such as Josef Breuer, Jean-Martin Charcot and Rudolf Chrobak. All of these people shared similar views about behaviours which most people thought were absurd and unprovable. As a result behaviorism was born. The development of Behaviorism was largely influenced by the dissatisfaction of John B. Watson with a number of theories which were in place at the time, especially Psychoanalysis. Behaviorism was created in an attempt to make psychology a science like Biology or Physics which focused only on observable data. Behaviorism was developed from a utilitarian school of thought. It was designed to predict and control behavior and focused on the study of overt behavior. Both perspectives have differing theories about personality. Burrhus Frederick Skinner was...
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...Introduction The genus Trichinella has undergone revision, due to the advent of reliable DNA probes that can be used to distinguish the various species that have been recently described.1, 2 There are 8 recognized genotypes (two are provisional).3 Members of the genus Trichinella are able to infect a broad spectrum of mammalian hosts, making them one of the world’s most widely-distributed group of nematode infections. Trichinella spp. are genetically related to Trichuris trichiura and Capillaria spp; all belong to the family Trichurata. These roundworms constitute an unusual group of organisms in the phylum Nematoda, in that they all live a part of their lives as intracellular parasites. | The diseases that Trichinella spp. cause are collectively referred to as trichinellosis. Currently, prevalence of trichinellosis is low within the United States, occurring mostly as scattered outbreaks,4 and the majority of human cases are due to Trichinella spiralis and T. murrelli. The domestic pig is the main reservoir host for T. spiralis. This species is significantly higher in prevalence in people living in certain parts of Europe, Asia, and Southeast Asia than in the United States. It is now considered endemic in Japan and China. A large outbreak of trichinellosis occurred in Lebanon in 1997, infecting over 200 people.5 Trichinella spiralis infection in humans has been reported from Korea for the first time.6 In contrast, trichinella infections in wildlife within the United States are...
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...Biology - Plants 13.1 - Plants as Valuable Bioresources - The Biosphere Depends on Plants * photosynthesis: a series of chemical reactions that converts energy from sunlight into chemical energy stored in molecules * cellulose: a large carbohydrate molecule - Plants as a Source of Food * agriculture: farming or forestry practices that produce food and goods - Food Security * food security: the state where all people, at all times, have access to enough safe and nutritious food to meet their dietary needs and preferences and allow them to lead an active and healthy life * sustainable agriculture: an approach to agricultural production that integrates economics, the environment, and society in meeting the nutritional needs of the world - Plants as a Source of Fibres and Building Materials * textile: a fabric, flexible material, or related product made from natural or synthetic fibres, threads or yarns * timber: trees in their natural state or wood that has been prepared for use as a building material - Plants as a Source of Biochemicals * medicinal uses - Plants as a Source of Fuel biofuels a fuel that is produced from renewable biological sources - Plants and Erosion Control - Plants, Recreational and Ecotourism 13.2 - The Vascular Plant Body - Plant Classification : Vascular vs. Non Vascular - Vascular Plant Systems : Shoot System (above ground): the stems and leaves of a plant; stems: bear structural...
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...Microbiology Biology 299 9/18/2015 West Nile Virus The height of the summer months brings high temperatures in late afternoons. We are all smacking, swatting and spraying - knowing it’s that time of year for mosquitoes. Mosquito bites are a nuisance. Many people fear contracting the West Nile Virus. A virus is described as “a genetic element that contains either RNA or DNA and that replicate only in host cells; has an extracellular form.” (Brock Biology of Microorganism’s) A virus is also an ultramicroscopic infectious agent which replicates itself only within cells of living hosts. (Webster Dictionary) Along with being classified as a virus West Nile shows that it only infects certain and specific cells [Secondary Source]. Since Dmitri Ivanovsky's 1892 article describes a non-bacterial pathogen infecting tobacco plants, and the discovery of the tobacco mosaic virus by Martinus Beijerinck in 1898, about 5,000 viruses have been described in detail. [Secondary Source] Although there are millions of different types, viruses also undergo cycles in order to reproduce and harm and/or help organisms. There are two types of viral cycles known to men, the lytic cycle and the lysogenic cycle. In the lytic cycle the virus attaches itself to the host cell and nucleic acid is inserted into the cell. Next it makes copies of DNA and capsid and more viruses are assembled. Finally the viruses are released by bursting the cell and destroying it. The lysogenic cycle is slightly different...
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...What I have learned In Science 7 What I have learned In Science 7 7-IPIL 7-IPIL SUBMITTED BY: PATRICK GENESON GONZALES SUBMITTED BY: PATRICK GENESON GONZALES CHEMISTRY CHEMISTRY MATTER MATTER MASS- the measure of the amount of matter WEIGHT- the composition of the mass of the body and gravity VOLUME- amount of space occupied by an object STATES OF MATTER STATES OF MATTER State- physical condition of a matter Phase- refers to TEMPERATURE that change in state SOLID- particles are tightly pack, vibrating in a fixed position -have definite shape and volume LIQUID- has definite volume but have indefinite shape -tightly pack but far enough apart to slide over one another GAS- very far apart -have indefinite shape and volume PLASMA BEC (Bose-Einstein Condensate) ACID, BASE and SALT ACID, BASE and SALT pH- power of HYDROGEN in water Measurement: 0-6 ACID 7 SALT or NEUTRAL 8-14 BASE ACID- a substance that breaks into (H+) ION in an water WEAK: * Citric * Ethanoic * Carbonic * Acetic * Phosphoric * Nitrous STRONG: * Hydrochloric * Sulphuric * Nitric * Hydrodic BASE- a substance that breaks into (OH- (HYDROYYL) ION in water WEAK: * Potassium Carbonate * Sodium Carbonate * Ammonium STRONG: * Hydroxide Sodium * Phosphate Barium * Hydroxide Calcium * Hydroxide * Sodium ACID+BASE= SALT (NEUTRALIZATION) INDICATOR- a compound that will change color in the...
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...Cystic fibrosis, also known as mucoviscidosis, is an autosomal recessive disorder.1,2,22 It is the most common inherited disease in the Caucasian population affecting 1 in 3000 children in Western Europe.3 It is a multiorgan disorder caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) protein, which is located on the long arm of chromosome 7 and encodes for a special chloride ion channel.4,5 The vast majority of mutations involve three or fewer nucleotides and result in primarily amino acid substitutions, frameshifts, splice site, or nonsense mutations.11 Of more than 800 identified CFTR mutations, the 3 base pair deletion of phenylalanine at position 508 is found worldwide in 70% of cystic fibrosis sufferers, therefore making F508 CFTR the most common deadly mutant in the Caucasian populations.6 Since cystic fibrosis has a genetic origin the opportunity to treat by replacing the defective gene with a normal healthy gene (gene therapy) offers a ‘novel therapeutic approach’ for sufferers.7 The estimated survival age of cystic fibrosis sufferers is 33.4 years (Fig 1). In this essay we will discuss the aetiology and symptoms of cystic fibrosis and the current available treatments, with particular emphasis on gene therapy and furanones, which prevent the build up of bacterial biofilms and thus reduce lung infection. Mutations in the CF gene can disrupt CFTR function within epithelial cells in different ways, ranging from complete loss...
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...Biology exam review 2.1 Kingdom King Phylum Philip Class Came Order Over Genus Germany Species South |Domain |Bacteria |Archea |Eukarya | |Kingdom |Eubacteria |Archeabacteria |Protista, Fungi, Plantae, | | | | |Animalia. | |# of cells |Prokaryote |Prokaryote |Eukaryote | |Cell structure |Cell walls made of peptidolglycan|Cell walls without peptidoglycan |Fungi-cell walls with chitin. | | |(coat of sugars) | |Protista-cell walls of cellulose | | | | |in some, and in others | | | | |chloroplasts. | | | | |Plantae-cell walls of cellulose, | | | | |chloroplasts ...
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...BIOL 3332 Spring 2016 Unit 1/Exam 1 Review (Chapters 1, 3, 6, and part of 4) A. Chapter 1 Microbial Life: Origin & Discovery a. Impact of microbiology on our lives i. Ecology, public health, biotechnology, knowledge of cell biology and genetics b. Defining what a microbe is: * a microbe is a living organism that requires a microscope to be seen c. Where did microbes come from? Evolutionary origins, fossil evidence; prokaryotic cells eukaryotic cells * bacteria is the oldest known life form. Oldest datable geographical evidence was 3.8 bya * eukayotic cells arose from divergent prokaryotic lines. Endosymbioses came from mitochondria and chloroplasts. Unicellular types came from simple multicellular forms metazoans; significance of cyanobacterial ancestors * presence of cyanobacteria-like chains of cells in stomatolite fossils represent growth of cyanobacteria * cyanobacteria photosynthesize like plants; they use H2O to synthesize O2. d. Microbial taxonomy & phylogeny (3 domains: Archaea, Bacteria, & Eukarya ) * the 3 domains (bacteria, archaea, and eukaryotes) evolved from a common cell * Archaea and bacteria include prokaryotes * Eukarya includes algae, plants, fungi, animals, and protists eukaryotes * Monera includes all 3 domains i. Taxonomic groupings: microbes in the different kingdoms of those domains ii. Similarities & differences: eukaryotic & prokaryotic cells; genomes iii. Metagenomics e....
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...Technology Author(s): H. Stephen Wright Source: Notes, Second Series, Vol. 56, No. 3 (Mar., 2000), pp. 591-597 Published by: Music Library Association Stable URL: http://www.jstor.org/stable/899642 Accessed: 01-10-2015 14:13 UTC Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at http://www.jstor.org/page/ info/about/policies/terms.jsp JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org. Music Library Association is collaborating with JSTOR to digitize, preserve and extend access to Notes. http://www.jstor.org This content downloaded from 103.5.183.171 on Thu, 01 Oct 2015 14:13:57 UTC All use subject to JSTOR Terms and Conditions TECHNOLOGY BY H. STEPHEN WRIGHT In an astonishing 1945 article, scientist Vannevar Bush offered his vision of a marvelous machine he called the "memex."' As depicted by Bush, the memex would enable scholars to search a vast repository of scholarly information, take notes, copy information as needed, and create new scholarship-all with incredible speed. One of the most striking features of the memex is what Bush called "associative indexing," in which links can be built between items of information...
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...Psychoanalytic Theory Sigmund Freud assessed his patients using a psychosexual theory of development. He viewed development through a lens of sexuality and sought to interpret how childhood experiences impacted adulthood. He grouped development into four stages: oral, anal, latency, and genital (Friedman & Schustak, pgs. 70-76). Freud felt that most adult challenges originated with a fixation at one of these stages. If I were on Freud�s couch, he might notice my on-going pursuit or �intake� of learning and new ideas. He might spend some time probing about my relationship with my mother and learn that she was often pre-occupied (with stress, divorce, new marriage, etc.) during my early development. He would discover that I am still seeking a connection with her, in many ways, as an adult. Freud might interpret that I am fixated at the oral stage and that my mother�s inconsistent responsiveness makes me continue to seek mothering and validation in the form of instruction and grades. In addition to his psychosexual analysis, Freud utilized the unconscious and structures of the psyche (id, ego, superego) to assess his patients (Friedman & Schustak, pg. 67). In this context, Freud would likely say that I am superego driven. I have always been very focused on trying to do what is �right.� Freud might draw a connection to my oral fixation and say that I am still seeking validation from my mother through obsessively socially acceptable behavior. I want to be loved...
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...International Research Journal of Finance and Economics ISSN 1450-2887 Issue 66 (2011) © EuroJournals Publishing, Inc. 2011 http://www.eurojournals.com/finance.htm Impulse Purchasing as a Purchasing Behaviour and Research on Karaman Selda Basaran Alagöz Assistant Professor, Faculty of Economics and Administrative Sciences Karamanoglu Mehmetbey University, 70100, Karaman - Turkey E-mail: seldalagoz@hotmail.com Tel: +90-338-2262000; Fax: +90-338-2262023 Nezahat Ekici Res. Assistant, Faculty of Economics and Administrative Sciences Karamanoglu Mehmetbey University, 70100, Karaman - Turkey E-mail: nezahatekici@hotmail.com Tel: +90-338-2262000; Fax: +90-338-2262023 Abstract Globalisation of markets caused differentiation of products and development of different selling techniques and as a result, consumer’s purchase decision process became more complicated. Lots of inner and outer factors affect consumer’s purchase decision (Ünal and Ercis, 2006). Consumer, who is in the middle of a lot of stimulants like, complicated message content, news, visuals, e-mails etc, is trying to develop a specific purchasing method or purchasing behaviour to handle the situation. In modern societies, shopping and consuming are not only for responding human needs, they also shape people’s lifestyle and even more started to play a part of changing their characters. At this point, we can talk about consumer identity. A person’s all characteristic features pass to his’ consumer identity...
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