Introduction: This report required the successful identification of two unknown substances through experimental testing on a selective collection of materials and equipment. For the first substance (which will be either tin or aluminium)‚ two tests shall be done to ensure a decisive and educated decision onto what the substance is. The first step utilizes the dramatic difference in density between the two substances by measuring the volume and mass of the unknown substance. By calculating the volume
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Two biological processes which control our stress response involve the hypothalamus and the autonomic nervous system. When a human is under threat‚ the sympathetic branch of the automatic nervous system becomes active and sends a signal to the adrenal medulla. Similarly‚ when the body is no longer under threat‚ the parasympathetic branch sends the body into a more relaxed state. Therefore‚ the human body will automatically react when the body is under threat or stressed and then help itself go back
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How does psychology affect ones physical health? Several psychological factors including stress‚ behavior due to chronic pain‚ depression‚ and cultural beliefs can have adverse affects on the body’s physical condition. The treatment of both physiological and psychological aspects of poor health are crucial for patients to have successful treatment outcomes‚ maintain and improve wellness‚ and improved adherence to medical regimens. Adding a team of five psychologists to a hospital’s staff and assigning
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David Kennedy Bio 210 Lab Report 1 10/11/13 Microbial Growth Background Information: This lab was conducted in order to understand basic differences among differential and selective media‚ while recognizing how each media is used to isolate and identify microorganisms (Wistreich‚ 2003). The first microorganism analyzed was Staphylococcus epidermidis. This organism is gram-positive‚ single celled‚ arranged in grape-like clusters‚ and cocci in shape (Bukhari‚ 2004). S. epidermidis is approximately
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CH4 Prokaryotic Cells No nucleus Plasma membrane Selective permeability lets molecules pass. Enzymes for ATP production. Photosynthetic pigment on folding (on chromatophores or thylakoids). Leakage occurs if damaged by alcohols‚ ammonium‚ and polymyxin antibiotics. Phospholipid bilayer‚ peripheral proteins‚ integral protein‚ transmembrane protein‚ sterols‚ glycocalyx Movement across Membranes Simple diffusion: Movement of solute from high concentration to low Facilitative diffusion: Solute
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contains lipids and proteins and has complex symmetry. The core of the structure contains double stranded DNA and to date‚ ten enzymes are known to mediate its gene expression and tons of nucleoproteins. The most widely used virus for smallpox inoculation has been vaccinia‚ which belongs to the genus Orthopoxvirus along with variola virus. Other species of Orthopoxvirus include cowpox (the virus used by Jenner and mentioned above)‚ monkeypox‚ and camelpox‚ among others. Its origin is uncertain‚ and
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1. What are the major security threats on my network and computers connected to the network? There are cybercriminals who commit crimes using the computers and networks. They spread malicious viruses through the networks such as worms and Trojan horses. They hack other people’s computers to steal important data and identity or destroy data. A hacker uses a packet sniffer to intercept the unencrypted network traffic and capture the passwords or other important information which was communicated through
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Childhood Vaccinations What if someone told you that you could potentially protect your child against fatal‚ debilitating diseases? Well‚ there is a way. Although there is not a guarantee promise that a vaccine will protect your child 100%‚ it is still better than no protection at all. Vaccinating your child at an early age can protect them‚ your family‚ and the community as a whole. Majority of parents vaccinate their children‚ but there are still those percentage of parents who believe vaccinations
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Microbiology Exam 1 Name_______________________ 1/30/07 1. (1 pt) Who was the first person to observe bacteria using a microscope? a. Lister b. van Leeuvenhoek c. Pastuer d. Koch 2. (2 pts) Which two of the following contribute to the opportunistic and infectious nature of bacteria? a. flagella b. ability to persist in unfavorable environments c. selectively permeable membranes d. fast growth e. ability to sense chemical gradients f. peptidoglycan 3. (1 pt) Capsules‚ sheaths‚ and
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“Thank you for Arguing” Outline Introduction I. Rhetoric A. “Art of Persuasion” (Preface) B. Few colleges and universities still teach it C. Romans using “the first infomercial tactic” – dirimens copulation : a joining that interrupts 1. “Not only do we have this‚ but we have….” (5) D. To prove of its importance‚ Heinrich attempts a day without persuasion 1. “Free of advertising‚ politics‚ family squabbles‚ or any psychological manipulation whatsoever.” (6) Offense I. Argument
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