reading extensively about them. Spencer was also an expert in radar tube design, and worked at a company called Raytheon as the chief of the power tube division. His expertise helped the company win a major contract from the U.S. government to produce magnetrons for radar equipments which was invaluable in the second world war. Under his leadership, the division expanded from a mere fifteen employees to more than 5000 employees and productivity was also largely improved (“Percy Spencer”). Percy LeBaron
A number of things can happen to cause a pneumothorax including: trauma to the chest, previously damaged lung tissue, or the rupture of air blisters called blebs (Mayo Foundation for Medical Education and Research, 2014). The lungs and thoracic cavity are lined with visceral pleura and parietal pleura respectively. The space between the two layers, called the pleural space, is filled with a lubricant that holds the lungs and thorax together. When a pneumothorax occurs, a hole is made in the lung
The microbe Naegleria fowleri, commonly called the brain-eating-amoeba, was first identified from a fatal case of primary amebic meningoencephalitis (PAM) in Australia in 1961. In 1965, three further cases of fatal PAM were found, from which clinical and laboratory investigations pointed to a relation with acute bacterial meningitis among the cases of an unknown etiology. According to Fowler & Carter (1965), when post-death examinations of the bodies were performed researchers found that “microscopically
A 73-year old female presented to St Vincents Emergency Department, with a 3 week history of progressive dyspnoea, cough, and lethargy, on a background of a 6-year history of Multiple Myeloma. Just prior to presentation, she had also developed a fever. In terms of her presenting complaint, she described herself as an active lady, who ran her own pub, but her recent symptoms rendered her unable to carry out her normal activities, such that her husband recommended she should go to hospital. Following
The Debate Over Dinosaur Nostril Positioning Where should the nostril on dinosaur models be placed? Although it seems like a rather simple question, it is a topic that has been recently researched so that scientists can feel reassured in creating anatomically correct models of dinosaurs. Amniotes (a group which in the Triassic spilt into reptiles and synapsids and which include dinosaurs), have large nasal openings, but since the nostril is made up of flesh and cartilidge, it is almost always
1. What is meant by the statement “Singing is a learned behavior”? Most people are not naturally “born singers.” Many people believe that “singing is some type of gift” (Phillips, 222). I have heard this phrase many times in my life. My family would always ask me who I inherited my music talent from. If music was a gift then why would the public use tax dollars to teach every student music. Some students just have a higher musical aptitude than others. This means that some students will be
cervical (5%) and thoracoabdominal (20%). Thoracic and thoracoabdominal are the two most common forms of this disease. Thoracic Ectopia Cordis is a rare congenital heart abnormality with the heart partly or completely placed outside of the thoracic cavity. It is not protected by the sternum or skin and in some cases, the other organs form outside the body as well, usually the kidney's, liver and spleen. The second most common type of Ectopia Cordis is Thoracoabdominal, which is frequently associated
prolific theories of bone growth anatomy. Duhamel proved, in 1742, that the bone is first formed in the periosteum and grows in superposing layers. Hunter, through his experiments showed that bone grows in length by juxtaposing layers and the medullary cavity (Trabecular bone) grows by resorption of inner layers of bone. He also showed that the ends of the bones show remodeling via cycles of bone formation and resorption. Duhamel du Monceau used madder dye, an extract of the root of Rubia tincterium tree
How to Clear a Stuffy Nose (Home Remedies) Home remedies to clear a stuffy nose. A stuffy nose or congestion is caused by inflamed blood vessels in the membranes lining. Blood vessels usually infected due to the cold, flu or some kind of allergy. It can be difficult to breathe with excess mucus in your nose. This can also be a life-threatening for the newborns. A stuffy nose is also uncomfortable and annoying for adults and kids. You can easily clear stuffy noses at home with minimal or no cost
Officers received a dispatch for a silver bread van that is leaving the scene after backing over a street sweeper sign tearing it from the ground. The van broke the metal post at the base where it was fastened into the concrete. The sign was later observed lying on the sidewalk. The vehicle was observed travelling eastbound on Oak Street crossing Main Street. The vehicle was stopped on the 100 block of East Oak Street. The operator was identified as Joseph S. ZENDROSKY. ZENDROSKY related he
conditions. The symptoms are excess of fluids, irritation, itching. As these symptoms becom... ... middle of paper ... ...heartbeat and also it can produce a chronic disease in the future. This is a bad sign for health because it “dehydrates the nasal cavities, generating more mucus inside membranes” (Rutgers, 2010). The overuse of the nasal spray might cause addiction to it. Because of the same effects that the chemicals are producing inside the nose, the body starts to be dependent on the drug, which
As a giant herbivore, the Diplodocus fed primarily on conifers, ginkgo leaves, ferns, and other soft leafy vegetation available at the time (Young et al., 2012). Additionally, there currently stand two main feeding theories when it comes to the Diplodocus. The Diplodocus, with shorter front legs, is often envisioned as being a low browser where it would keep its neck close to the ground and feed off the leafy ground vegetation as it would have been in a more comfortable posture for feeding. As popularized
between them (Vacuum) or filled with a thick yellow mixture called Cavity Wall Insulation. Cavity Wall Insulation grants you the chance to save on heating bills, and keep your house warmer. Cavity Wall Insulation (Micafil Material) may be a bad conductor, however it is a great insulator, allowing us to keep our house warm in the inside, and not allowing the cold air to get into the house. In this essay i am going to be talking about why Cavity Wall Insulation is important in our daily lives, how it is installed
Applying The Baloney Detection Kit The claim is: The Flex Belt® Tones Firms and Strengthens the stomach muscles. Source of Claim is: Signals from the ab belt stimulate the nerves of the abdomen. These signal causes the nerves to relax and contract naturally, working all the muscles at the same time. Question 1: Site the claim and explain where you located the claim. The Flex Belt is found at the website http://www.theflexbelt.com/index.php. I came across this product while watching an advertisement
1. Nine year old Jerry stumbled into a drug store, which is usually open late with very few attendants, gasping for breath. Blood was oozing from a small hole in his chest wall. When paramedics arrived, they said that Jerry had suffered a pneumothorax and atelectasis. Just what do both these terms mean and how do you explain his respiratory distress? How will it be treated? The respiratory system undeniably serves a very important function in the body. Anyone who has had any event where they couldn’t
hope for a cure. Healthy lung tissue is predominately soft, elastic connective tissue, designed to slide easily over the thorax with each breath. The lungs are covered with visceral pleura which glide fluidly over the parietal pleura of the thoracic cavity thanks to the serous secretion of pleural fluid (Marieb, 2006, p. 430). During inhalation, the lungs expand with air, similar to filling a balloon. The pliable latex of the balloon allows it to expand, just as the pliability of lungs and their components
well as outline knowledge gained from the case study. Brief description of the patient’s presenting symptoms and initial complaint Wildgruber and Rummeny (2012) define tension pneumothorax is a life-threatening condition where air enters the pleural cavity during inspiration but cannot escape during expiration. It is more common in patients with chest traumas and those with mechanical ventilations (Briggs, 2010). Increased the thoracic pressure will compress against the heart and the unaffected lung
the face which extends approximately 3-5 cm in height externally and 10 cm long nasal cavity internally (Sforza, Grandi, De Menezes, Tartaglia, & Ferrario, 2011). Human nasal cavity starts from external nares (nostrils) to the nasopharynx (the upper section of the throat) which is equally divided by the nasal septum into 2 similar non-connected halves i.e., left- and right-nasal cavity. Anatomically, the nasal cavity is the space between the lower base of the human skull and roof of the mouth which
way to insulate their home. They want to choose from triple glazing, cavity wall insulation, loft insulation, etc. Our class assignment was to help Graham and Alicia to pick the most suitable type of insulation for their home. I think personally think that they should not only be one type of insulation, but several different types, to make it more effective. For example, they could combine triple glazing, loft insulation, and cavity wall insulation together, because it is both helping the environment
don’t know how a microwave oven operates, how it is structured, or how the food is actually heated. Microwaves were first created in 1947 being 1.8 meters in height and 750 lbs created by Percy Spencer while building magnetrons for radar sets during World War II. The magnetrons would allow the radar sets to indicate where the enemy machinery was located, since the microwaves would reflect off metal. When Percy Spencer was<> working with the microwaves he noticed that a chocolate bar melted when