Tutor profile: Gaby S.
Subject: Health and Medicine
Please explain the foundation of understanding cardiovascular disease.
Our bodies have a cardiovascular system that includes the heart, arteries, and veins. The arteries pump oxygenated blood away from the heart and deliver oxygen to the living cells in the body. The veins remove the deoxygenated blood from cells and deliver to the heart to be recirculated into oxygenated blood from the lungs where the cells pick up oxygen. Over time, when a person consumes a poor diet high in saturated fat for many years, fatty deposits start accumulating all over the cardiovascular system. The arteries and blood vessels start becoming clogged and hardened with fatty deposits and cholesterol. This constricts the vessels and increases pressure in the vessels. High pressure inside the cardiovascular system creates high blood pressure. Fatty deposits can make the vessels so constricted that blockages can occur and less blood is being circulated. Diseases such as angina (chest pains), hypertension (high blood pressure), atherosclerotic heart disease (artery blockages), stroke (blood flow to the brain is cut off), or myocardial infarction (heart attack) are results of poor diet. Diets low in saturated fat and regular exercise help reduce the chance of cardiovascular disease.
Are viruses alive or non-living molecules?
Viruses are well-known to be non-living molecules. Viruses invade cells and use the living cell they invade to replicate. Viruses are made of an RNA or DNA protein capsid. Examples of viruses are the HIV virus, influenza virus, Ebola virus, Human Papillomavirus, or small pox virus. Without a host-cell a virus cannot replicate or reproduce. Viruses are not made of the same material as living cells. They do not have a cellular membrane, cellular organelles or cytoplasm. The virus does not also do its own metabolism which is a core feature of a living cell. Viral replication involves six steps: attachment, penetration, uncoating, replication, assembly, and release. During attachment and penetration, the virus attaches itself to a host cell and injects its genetic material into it. The genetic material is either RNA or DNA.
Subject: Dentistry and Pre-Dentistry
What are some behavior management techniques used in Pediatric Dentistry to help young children cooperate at the dentist?
Tell-Show-Do, Voice control, Tender Loving Care, use of Nitrous Oxide, building rapport with patients, positive reinforcement, and using child-friendly language are all great behavior management techniques. When first meeting a patient it is important to build rapport with the child and joke around with him or her to get them to trust you as their dentist. Before any procedure starts the child should be introduced to the instruments and tools used in the office via Tell-Show-Do. One example is for doing a filling: the child will be shown the mirror (Mr.Mirror), the explorer (The Tooth Tickler), the suction (Mr.Thirsty), high speed handpiece (Mr.Whistle), slow speed handpiece (Mr. Bumpy) and the curing light (Dental Laser). All instruments will be introduced with child-friendly language (as shown above). One example of Tell-Show-Do is to put flowable composite on the child's finger before the procedure and cure it with the light to show them how a filling is placed. Most children are scared of the dentist and can easily be calmed down with Tender Loving Care and reassurance. Nitrous Oxide use is recommended on all patient ten years old and younger as it will relax them and distract them. Promising a child a toy from the dentist's treasure box or sticker will help guide their behavior. Sometimes the dentist can ask the parent what prize the parents plan to buy for the child if they behave. Voice control is a technique used in Pediatric Dentistry when the dentist will raise his or her voice at times to discipline the child. Praise can also go a long way. Further training is needed for advanced behavior management such as sedation dentistry or use of papoose.
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