Wednesday, March 18, 2020
Isolation of Microorganisms from Environmental Samples Essays
Isolation of Microorganisms from Environmental Samples Essays Isolation of Microorganisms from Environmental Samples Paper Isolation of Microorganisms from Environmental Samples Paper It is crucial in the field of microbiology to study the morphology, biological activity, and the behavior of microbes thus the isolation of such microbes from the environment is necessary because it allows scientists to study them in close proximity. Microbial life forms are found everywhere. They are major players in biochemical cycling of elements and primary producers in numerous environments. There are also some microbes living inside higher forms of organisms that aid in digestion and provide vitamins. Some scribes can also be antagonistic or harmful to humans, and when scientists isolate them, they can study and identify ways on how to counteract the microbes harmful effects. This exercise aims to isolate microorganisms from a variety of environmental samples and to enumerate the different microbial species observed. Methodology Rest Its and Discussion Bacteria, molds and yeast have different colony morphologies and characteristics that are specific to the genus and species of the organism. Bacterial colonies can be classified by color, form, elevation, margin, opacity ND size. Mold and yeast colonies can be classified and described by their color, texture, feature on the reverse side and more. Also, the source from which the bacteria samples were gathered should be taken into consideration. In the experiment, the microorganisms that were isolated were gathered and collected from the environment. As such, only h strength AN was prepared along with the SAD. It was observed on the AN plates that there were multiple bacterial colonies formed that did not differ so much in color or elevation. Most colonies were white or a color that is just as light, like yellow or salmon pink. The sizes of the isolated colonies are relatively small, most just less than 1 mm in diameter. The AN plate in which bacterial colonies were numerous was on the ones exposed in air that is outside the laboratory. The fewest were the ones that were swabbed on the skin. There were also colony growths on the AN plates that were not bacterial colonies. It was observed on the SAD plates that most of the molds and yeast that grew were cottony in appearance and had a wrinkled reverse side.
Sunday, March 1, 2020
Top 10 Most Stressful Jobs of 2016
Top 10 Most Stressful Jobs of 2016 All jobs have aspects or components that make them stressful- even the ones that donââ¬â¢t seem like very high-stakes occupations. Certain scenarios or times of the year come up and itââ¬â¢s a mad sprint- all hands on deck. Crunch time.à Then there are the jobs that just donââ¬â¢t seem to ever let up. Here are the top 10 most stressful jobs of this year- based on deadlines, public scrutiny, required travel, physical risk, physical demands, environmental conditions, hazards, public interaction, and risk of oneââ¬â¢s life. Starting to look pretty good to go into Library Science? 1. Enlisted Military PersonnelMaking less than $30k per year, and constantly risking oneââ¬â¢s life, this is one of the most stressful jobs out there.2. FirefighterYour job is starting to look pretty cushy, when you consider that for less than $50k a year, on average, some people have to run into burning buildings on the regular. And you thought that big project was really making you stressed!3 . Airline pilotWith a median income of just over $100k per year, airline pilots are well compensated for the stress of ferrying hundreds upon hundreds of souls around the globe. That responsibility alone is incredibly stressful.4. Police officerMaking just a bit more than a firefighter, based on median income, police officers are also under a great deal of stress and risk of life.5. Event coordinatorEvent coordinators may not risk theirà lives or limbs, but they are still the peopleà left holding the bag when anything- major or minor- goes wrong. If the hors dââ¬â¢oeuvres come out five minutes late- or early- or if the band has the wrong cord to connect their amp, or if there is a typo in the invitationsâ⬠¦ You name it, theyà gets yelled at. These arenââ¬â¢t life threatening stakes, but the stress is almost always at a high.6. PR ExecPublic Relations executives are responsible for the reputations and the fame-level of their clients. They donââ¬â¢t just have to man age logistics, they have to manage perception and public opinion. And that takes a lot of nail biting. Especially when their clients do something that requires the putting out of fires (albeit, of course, not literal fires).7. Senior Corporate ExecIf youââ¬â¢ve made it to the top of your company tree, itââ¬â¢s not all big bonuses and stock options. With every rung up the ladder comes a great deal more pressure. And with pressure comesâ⬠¦ you guessed it, stress.8. BroadcasterFor a surprisingly low annual median salary of less than $30k per year, a broadcaster is required to clearly and calmly read the news from a teleprompter often riddled with typos. She must be poised and in control at all times, as all of this happens live. You think public speaking is hard? Try doing it every day on television.9. Newspaper reporterYou wonââ¬â¢t make a lot of money, and youââ¬â¢ll have to run headlong into potentially dangerous or volatile situations to get a story. And once you ge t it, you have to race to get it published first. One mistake and youââ¬â¢ll have lost your reputation.10. Taxi driverThis gig is perhaps the least well-paid of the top 10. Taxi drivers have to deal with rude people, drunk people, and people in a rush. Not to mention other lunatic drivers, rush hour traffic, accidents, and weather. Plus theyââ¬â¢re stuck in a car. Imagine trying to find a parking space in NYC every time you had to pee!The 10 Most Stressful Jobs In 2016
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