Interstellar medium

For this lab, the direct viable count method using TSA medium was used to find the Colony forming unit due to its simplicity. Unlike other methods, direct viable count only measures the number of colonies that were able to form on the medium that was used. After the number of colonies were recorded, the CFU was found based on the total number of colonies, dilution factor and the volume of liquid

A broth in test tube labeled #2 was used to identify the unknown organisms. A T-soy agar plate was the first media I inoculated. I used the streak isolation technique to isolate a pure strain from colonies, so that organisms can be identified. I inoculated a MacConckey to help me identify my Gram negative organism and observed that the organism was a non-lactose fermenter, then I performed a Citrase test which was negative. The last test I performed was a TSI, the butt was positive for hydrogen

The Collection The Douglas Fairbanks Nitrate Stills Collection is a rare and treasured group of artifacts from the silent film era. They provide abundant evidence of what was expected of the stills photographer on a film set from several of his well-known films. They are a crucial aspect in researching the history of early filmmaking, as well as the unit stills photographer. Douglas Fairbanks Sr. was one of the most popular silent film star in the 1920s, which appropriately led to him being

Escherichia albertii is an emerging gram-negative discretional rod that has been related to multiple cases of human diarrheal disease, especially in young children. The purposes of this study were to illustrate the antibiotic resistance traits and the growth of individual strains of E. albertii on raw ground beef at different storage temperatures. First, the bacteria stains were isolated. Next, using the Broth microdilution assay (a method used to test the susceptibility of bacteria to antibiotics)

Bacteriology Lab Eric Li Kieran Dulmage Ms. Hillier SBI 3U February 17, 2016 March 8, 2016 Purpose One: To attempt to culture bacteria from swabs taken from different areas of a school environment and to observe the growth of bacteria. Purpose Two: To determine and observe the antibacterial properties of different substances, particularly silver nitrate (AgNO3) and copper sulfate (CuSO4). Hypothesis One: If the swabs are taken from areas that frequently come into contact with

To begin the process of the lab, a tube chosen from a tube rack containing the unknown bacterial species. The tube that was chosen, tube number two, was brought to the vortex mixer so that the organisms were thoroughly mixed. Then the two organisms were isolated by using the streak plate technique.1 Using aseptic technique, the two nutrient agar streak plates were made and incubate at two different temperatures: 25 C and 37 C.1 The streak plates were incubated for 48 hours before being put into the

What is the Meaning of The Medium is the Message? by Mark Federman Former Chief Strategist McLuhan Program in Culture and Technology a culture like ours, long accustomed to splitting and dividing all things as a means of control, it is sometimes a bit of a shock to be reminded that, in operational and practical fact, the medium is the message. This is merely to say that the personal and social consequences of any medium - that is, of any extension of ourselves - result from the new scale that is

production and high demands in the market. As elaborated by Singh, Uma, Selvarajan and Karihaloo (2011), there are five steps in banana shoot-tip culture namely selecting of sucker, sterilizing of instruments, medium and environment, introducing the explant to Murashigee Skoog (MS) medium, sub-culturing the callus, and lastly is weaning and hardening of plantlets. (refer to Figure 1 in Appendix 1) The first step in banana shoot-tip tissue culture technique is selection of healthy sucker. During this

Introduction A microbe is described in the dictionary as “a microorganism, especially a bacterium causing disease or fermentation.” The thought of these bacteria make some people shudder; the thoughts of unseen enemies crawling on surfaces and primary areas of life. To prevent the spread an overgrowth of the organisms, we as a race have invented and developed many innovations. Although these fears are justified, could it be that these microbes we fear so much, exist in greater numbers within us

Abstract The identification of bacteria is a crucial procedure in the field of biology. Identification can be done through a series of tests run on different forms of media that detect the physical and biochemical properties of the cells. In this experiment, a sample containing two unknown species of bacteria was run through fourteen tests to determine morphology, fermentation properties, reducing and oxidative properties, and other various characteristics of each isolated unknown. It was concluded