Radiation therapy (RT) is an essential component in the interdisciplinary treatment of brain tumors. Independently of histology‚ radiation plays a central role and has shown to increase local tumor control. Developments in radiation oncology are always aiming at an increase precision of dose delivery: More conformal coverage of target volumes‚ steep dose gradients to surrounding tissues‚ and sparing of organs at risk (OAR). In photon therapy‚ based on 3D-RT‚ stereotactic radiotherapy was a big step
Premium Cancer Oncology Chemotherapy
Blackbody radiation is the electro-magnetic radiation emerging from a small hole in a perfectly black box containing electromagnetic radiation at a high temperature. Scientists were interested in setting standards for the electric and thus measured the distribution of the total electromagnetic energy in a black box among the different wavelengths of the light. But not until Max Planck‚ at the turn of the century‚ was a single mathematical formula for the observed distribution of the energy among
Premium Photon Quantum mechanics Light
Name __________________ Blackbody Radiation Lab 11 Go to http://phet.colorado.edu/simulations/sims.php?sim=Blackbody_Spectrum and click on Run Now. 1) In this lab‚ you will use the Blackbody Spectrum Simulation to investigate how the spectrum of electromagnetic radiation emitted by objects is affected by the object’s temperature. In this simulation‚ you can input the temperature and observe the spectrum of the radiation emitted. a) The temperature of stars in the universe
Premium Infrared Electromagnetic radiation Black body
Theresa Period 2 English 101 October 13‚ 2013 Causal Analysis Rough Draft Many people often wonder‚ “ Does early exposure to violence influence frustration and aggression in adolescence and adulthood?” or they might ask‚ “ What are the effects of early exposure to violence?” There are many situations in childhood that might cause or influence the later life of a child. Whether it is violent video games‚ rough sibling playing or parents who fight in front of their children; there must be some
Premium Violence Aggression Video game controversy
Brachytherapy (also known as internal radiation therapy) is the use of radioactive ‘seeds’ to help destroy cancerous cells. It is commonly used as a treatment for cervical‚ prostate‚ breast and skin cancer. How long the treatment will take will depend on where the tumor is and how large it is. Brachytherapy works from the inside of the body by placing the radioactive ‘seeds’ into the body next to the tumor. About 4/10 people with cancer have some type of radiation therapy as their treatment. History
Premium Cancer Prostate cancer
As a radiation therapist there are many challenges faced. The most challenging obstacle for a Radiation Therapist is the communication between them and the patient. In most settings Radiation Therapist are working with patients who have been diagnosed with cancer and the main goal during treatment is the make their visit as comfortable as possible. By empathizing with the patient‚ building a trusting relationship with the patient‚ and supporting the patient the communication between the Radiation
Premium
Adaptive Radiation Adaptive radiation occurs most often in new environment with a variety of different unfilled niches so that plants and animals that are not adapted to those areas can exploit the resources in the respective niches. Once individuals begin exploiting the new niches‚ mutations that will benefit the species will spread throughout the population via natural selection giving the owners an overwhelming advantage over others without the mutation and throughout evolutionary time
Premium Evolution Bird Charles Darwin
Conduction‚ Convection‚ and Radiation Heat transfer is the way heat moves through matter to change the temperature of other objects. There are three types of heat transfers‚ Conduction‚ Convection‚ and Radiation. The first kind of heat transfer‚ conduction‚ is heat transferring through direct contact of materials. This would be the same thing as a pan on the stove. The heat from the stove touches the pan directly‚ therefore making the pan hot. The next type of heat transfer is convection
Premium Heat Heat transfer Energy
The year 2010 was a watershed moment in the field of radiation oncology‚ due to articles written by Walt Bogdanich in the New York Times. These articles critiqued leadership‚ radiation dose‚ and patient safety‚ and accused the community of using unsafe practices (Washington & Leaver‚ 2016). While there had been previous accidents which injured and killed patients during the 1980s‚ those few accidents were attributed to equipment faults‚ as computer equipment was merged with treatment delivery equipment
Premium Federal Bureau of Investigation United States Terrorism
Effects of Computer Radiation in the Health of I-BSN-2 Students of Cavite State University I. Introduction Nowadays‚ computers are very common in a household. Computers are very advantageous which actually has unlimited capabilities; in seeking a certain information‚ for recreation‚ for entertainment purposes and many other uses. But despite those infinite uses of computers‚ some say that computers cause detrimental effects to those who are exposed to its radiation. Radiation‚ in
Premium Electromagnetic spectrum Electromagnetic radiation Cathode ray tube