Biology Notes 1.02 Sometimes a practice or belief claims to be science but does not follow the scientific method or cannot be proven reliable through experimentation. These practices are examples of pseudoscience‚ which literally means "fake science." Charms‚ astrology = stars‚ and phrenology= reading the bump on skull 1.03 * In the mid 1600s in the Netherlands‚ the scientist Antonie van Leeuwenhoek developed the first known microscope using a single magnifying lens. He was the first person
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J. of Advanced Engineering and Technology Vol. 2‚ No. 2 (2009) pp. 281-283 Synthesis of 2-Acetylcyclohexanone Using Pyrrolidine-enamine Eun-SunYoo Department of Oriental Medicine Industry‚ Honam University‚ Korea (Received : May. 20‚ 2009‚ Revised : Jun. 02‚ 2009‚ Accepted : Jun. 12‚ 2009) Abstract : 2-Acetylcyclohexanone was synthesized by acylation reaction of acidic anhydride using enamine as organiocatalyst instead of a strong base‚ NaOH‚ resulting in milder reaction conditions. The
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IB SL Biology Lab Molecular Biology: Transformation and Electrophoresis Christina Qi 2/16/07 Aim: How can a plasmid be engineered to include a foreign piece of DNA and how does gel electrophoresis separate DNA molecules present in a mixture? Hypothesis: If the pGLO plasmid is inserted into competent Escherichia coli cells‚ then the transformed bacteria will be resistant to ampicillin and will glow green under UV light. If samples of DNA are cut using certain restriction
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INTRODUCTION Absence is the failure of a worker to report for work when he is scheduled to work. A worker is to be considered as scheduled to work when the employer has work available for him and the worker is aware of it. A worker is to be treated as absent for purpose of this absenteeism. Statistics even when he does not turn up for work after obtaining prior permission any worker who reports for duty even for a part of the day or shift should not be‚ counted among absentees. The statistics
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capacity. ____________________________________________________________ _________ 4. How does a shaping process differ from a surface processing operation? Answer. A shaping process changes the geometry of the work material (machining or forging). A surface processing operation does not alter the geometry‚ but instead alters the properties and/or appearance of the surface of the
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Calculating Tank Volume Saving time‚ increasing accuracy By Dan Jones‚ Ph.D.‚ P.E. C alculating fluid volume in a horizontal or vertical cylindrical or elliptical tank can be complicated‚ depending on fluid height and the shape of the heads (ends) of a horizontal tank or the bottom of a vertical tank. Exact equations now are available for several commonly encountered tank shapes. These equations can be used to make rapid and accurate fluid-volume calculations. All equations are rigorous‚
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032 | Average: | 0.032 | Table 2: Values for measuring the radius of capillary Temperature | 30 degrees Celsius | Density @ 30 degrees Celsius | 995.67 kg m-3 | Acceleration due to gravity | 9.8 m s2 | Height of water | 0.032 m | Surface tension of water@ 30 degrees Celsius | 7.118 X 10-2 N m | Radius of capillary tube | 4.5592825 X 10-4 m | Table 3: Values for the height of n-butanol solutions in capillary tube Temperature | Trial | 0.1 M | 0.2 M | 0.4 M | 0.6 M | 0.8 M |
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am investigating the relationship between surface area and the volume of a model cactus and to determine whether this relationship affects the loss of water. We used oasis blocks‚ an absorbant material used by florists as a substitute for a cactus‚ that would soak up the water‚ and thus ideally show the percentage water loss by weighing the before and after evaporation weights. Independent Variable The independent variable is the total surface area for each size of the blocks and I think this
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cells. Some differences are that Animal cells don’t have a cell wall but Plant cells do and they are formed by cellulose. Animal cells have one or more small vacuoles whereas plant cells have one large central vacuole that can take up to 90% of cell volume. Plant cells have chloroplast for photosynthesis to create their own food whereas animal cells do not have chloroplasts. In plant cells‚ the function of vacuoles is to store water and maintain turgidity of the cell. Vacuoles in animal cells store
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1. Prologue: 1. Prologue: 1. Prologue 1.1Origin of the report: The term paper on “Quality Analysis of Financial Statement ” has been prepared for Mr Tanvir Ahmed Khan (Course instructor of Intermediate Accounting‚ ACT-330) as a partial requirement of the course . Real life does not go all the time like the theories and practical world is very critical and diverse. To understand the theoretical aspects of a subject one must understand the practical situation‚ problems‚ policies and implications
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