Interstellar medium

Videogame’s bad reputation: Disdain for the medium I have seen too many news reports that propose that videogames are a vile, mortifying plague. Videogames are a rather new medium of art and entertainment, and like their predecessors, videogames are the new scapegoat. Certain lobbyists, like the famous Jack Thompson, have argued that videogames are corrupting the youth of America. This, I will argue, is a skewed perception on the medium as a whole, and it is the issue of this paper. I implore…

Kathy McCurry Kathy McCurry is a recent polymer convert. Her journey started a couple of years ago when a job loss left her with some free time as she gathered and researched other opportunities. As it happened, she had relocated for the job she lost, so she was alone in a strange town. She did, however, have a long-forgotten box of beads. In that box were some glass pendants she purchased while in China. Those pendants got her interested in making jewelry, which sent her onto a hunt on the…

Eight albums in and we’ve gone from a quiet little bar in anytown USA, steeped in nostalgia and sweetness to something else entirely. It was building from the start and although that only comes through in hindsight and by looking at the trajectory of his career, it doesn’t seem completely shocking that Tom Waits would end up making an album like Swordfishtrombones when he did, in 1983. Rising out of the jazz, blues and pop standard traditions he explored in previous albums, this is a theatrical…

In order to determine the identity of two unknown bacteria, I performed a series of experiments over several days. To begin this process I created a dichotomous key that I utilized as a guide to perform a series of inoculations, while using both selective, and differential media. The series of inoculations eliminated bacterium based on test results until the correct bacteria were both positively identified. On day one of this process I received two bacteria, one labeled 7A and the other…

The objective of this activity was to use the knowledge that we obtained throughout the semester, with the goal to correctly identify two unknown bacteria. Organism number thirteen is Escherichia coli. On the first day, I conducted a gram stain and noticed that the bacteria were pink, meaning that the bacteria are gram negative. I also recognized that the bacteria were rod shaped therefore they were bacillus. I also noticed that the arrangement appeared to be single celled. I also put the…

50 μL of the antibacterial agent dilution, 50 μL of adjusted bacterial concentration inoculum (5 × 105 CFU/mL) were added in the 96-well micro-titer plates, the growth control wells contained MH broth medium with tested bacterial concentrations and sterility control wells contained only MH broth medium as shown in figure 2. The plates were then covered to ensure that the bacteria were not dehydrated. Then the plates were incubated at 37°C for 18 to 20 hours. The lowest concentration of each…

2 Literature Review 2.1 Porous Materials For the purposes of this report, porous materials is defined as a medium containing voids[2]. The skeletal material is called the matrix and the voids are filled with a fluid (usually air). The physical properties of the materials can be characterised by bulk, macroscopic and microscopic properties. Most of which have an impact on the acoustical performance of the material. Sound energy is lost in porous materials when it is transformed into heat. This is…

formation and motility in Gram negative bacteria. We will be adding a couple of drops of Kovacs reagent following the incubation of the unknown organism. The indole combines with the reagent and if positive it produces a red layer on top of the medium. If the medium has a hazy growth throughout, then is positive for motility and if it produces Hydrogen Sulfide (H2S) a black precipitate is produced. Some bacteria can produce large amounts of stable acids and others produce a smaller amount. In…

Streptomyces and Antibiosis From our group, Group 2, nutrient agar plates inoculated with E. Coli, (Images 1.1,1.2), (Images 2.1,2.2), (Images 3.1,3.2) no antibiotic activity was detected. This could be a result of the putative colonies chosen, not being Streptomyces. All selected colonies were white, or pigmented rink, raised and rough. One (1) and three (3) were inoculated with the putative Streptomyces colonies. Plate 2 was inoculated with the control Streptomyces colony. Although it was…

Scientists use different types of nutrient agar media to help with the study of microorganisms. The purpose of this experiment was to examine the different growths of minority organisms within a variety of media cultures. These cultures included types of selective, differential, and enriched media and were applied to split sections on the agar plate. Each of the four broth cultures: Escherichia coli, Enterobacter aerogenes, Staphylococcus epidermidis, and Streptococcus faecalis showed observable…