Essays on Ionizing Radiation

The title of the article covers the snapshot of what the contents of the research are. The title also has a section that focuses on the methodology and target population for the study. The specific aspects of the title create an idea of what the article will cover. The article does not have an abstract. On the contrary, it has summaries of the sections covered. These sections offer a shorter version of the article. The introduction provides a clear intention of the direction that the article will take. It also provides a background of the study and the anticipated ...

Abstract

The uses of radiation revolutionized medicine when experimentation on its potential applications begun. X-Ray technology, discovered by Wilhem Roentgen, is currently used as a common tool for diagnostics; Henri Becquerel, Marie Curie and Pierre Curie dedicated themselves to further investigations in the field, discovering additional radioactive materials (polonium and radium); radiation therapy is a popular treatment for cancer. This paper analyzes the historical background behind these two applications of radiation in the medical field. Moreover, the different types of radiotherapy are described (external-beam radiation therapy, internal radiation therapy). The concept of radiation homeostasis, which is the notion that low-dose ...

Brief information, risk factors and symptoms

Colon cancer, that is also known as colorectal, is a type of cancer that starts from rectum or colon. As any other type of cancer, colon cancer is characterized by uncontrolled growing cells of the body. This type of cancer usually starts with a polyp – a kind of growth on the inner lining of the rectum or colon. However, it is important to know that not all polyps change into cancer, though some of them might do it after several years. The chances that a polyp will become cancer after some, depends on the type of polyps. There are ...

Increasing telecommunication networks has resulted in the development of massive towers to support mobile phone antennas. This has been the case in the majority urban and built-up areas where the number of antennas is high. The increasing number of radio broadcasting stations has also contributed to the shift from lower operating frequencies to higher frequencies. Increasing the bandwidth is done to manage increased high traffic in the urban areas. The high frequencies generally require a higher number of towers. As such, the exposure to electromagnetic radiation in v urban cities increases. Mostly, the visual impact of the towers on ...

Ionization radiation effects on cells and Tissues

Overview Radiation refers to a method by which energy is transmitted through space. Radiation is caused by electromagnetic waves, with the position of the electronic wave in the electronic spectrum determined by its frequency. The high frequency waves are referred to as the ionizing radiation since they have massive energy to dislocate an electron from its position around a nucleus (Medalia, 2011). The radiation effects on human cells goes through extremely complicated stages. When the human body is subjected to ionizing radiation, there will be ionization of large molecules such as proteins. This may in turn alter the molecular ...

1. Abstract The sodium iodide scintillator detector is a very important type of inorganic scintillators. The main function of this scintillator is to detect gamma rays by interaction of ionizing radiation and the materials of that scintillator. In this experiment, we learned the applications of this detector and how the process of detecting happens. 2. Introduction This lab experiment is designed to make the student learn about scintillation detectors and how do they detect gamma and beta ray such as the effect of a sodium iodide NaI(Tl) scintillator. This type of detector the scintillation materials interact with ...

- Introduction Radiations such as  - rays, UV rays, etc. have ionizing effects on tissues and have the ability kill cells and inactivate viruses. A detailed analysis of the survival of such cells and viruses are imperative in many fields, including radiation oncology, public health and environmental photobiology. However, the mathematical and statistical tools based on target theory in radiobiology are mentioned in literature (Alpen, 1988, Smith, 1989, Hall, 2000) and are wide in use in the analysis of experimental data involving biophysical mechanisms of the repair of radiation damage. This work demonstrates the use of probabilistic approaches ...

{Author Name [first-name middle-name-initials last-name]} {Institution Affiliation [name of Author’s institute]}

Introduction

Radiographic treatments are based on the novel concepts of three-dimensional anatomy along with cross-sectional anatomy. The advancement in the art of computer science proposes the enhanced knowledge about the human body organized in a stronger and conceptual way. This is a computer’s era where dealing with plain text has become outdated. Knowledge engineering facilitates the designing and creation of symbolic information in a much more steady and supple manner. Computer graphics crafts the realistic interactive three-dimensional (3D) models of human anatomy and physiology. CT and MR provided information ...

The time period surrounding the years of World War Two are widely recognized as one of the most violent periods in human history. 1939 to 1945 have been marred as a global conflict that involved most of the world. Though the fighting during the previous World War One was restricted to European soil, World War Two saw battles extending out of Europe and into Africa Asia, and America. The global effort of defeating the Axis nations left devastation in its aftermath. Some of the aftermath issues including financial, social and infrastructure damage for many of the countries that were involved ...

Introduction

Physics refers to the branch of science that primarily deals with nature and properties of matter and energy. Its key components are heat, mechanics, light, sound, magnetism, structural orientation of atoms, and electricity. Any technology we use in our daily lives has a relation to physics. Physics is more of the backbone for most daily life activities. Examples include electric light in our homes, cell phones, , computer, CD player plasma TV set, wrist watches, radio, and working of our vehicles. Physics plays a key role in the production of energy. These various energies are then transformed into electricity for eventual ...

Introduction

Question 1. how and why the incident happened (what conditions allowed the incident to happen)? Hiroshima is located in the west of the largest Japanese island of Honshu. The town's name translates as "Wide Island". It is so named because the bayou Ota, flowing from the mountains to the plains Chugoku, where the Hiroshima formed at the confluence of the Inner Sea 6 islands protrude into Hiroshima Bay. They located the city. Hiroshima worth almost entirely in the valley, only slightly above sea level; to the north-west and north-east lie the hills, up to 700 feet (Rotter, ...

Abstract

This study was meant to find out the level of understanding of the various aspects of breast cancer in the society especially concerning its causes and the susceptible group. A survey was conducted and it was noted that there was some awareness about breast cancer in the society, however, it was not adequate. The study, therefore, also seeks to bring to light the approaches that have been proposed to combat the disease before it metastasizes.

Introduction

Cancer is a group of diseases collectively characterized by the multiplication of body cells that are no longer controlled by the body. There are several ...

Radiologists and the complementary professionals and para-professionals face unique risks while at the work place. Exposure to ionizing radiation induces nuclear changes in cells that may cumulatively lead to cancer. In the case of the patient, the exposure to radiation is necessary in order to establish diagnosis or treatment and the benefits should outweigh the potential harm. For the staff on the other hand exposure to increased levels of exposure is hazardous and undesirable. Shielding is used to avoid accidental exposure to radiation, as well as careful obedience to the laws of physics. The effects of radiation lessen as ...

Introduction

Every year, very many workers all over the world are injured, adversely affected or even die from the radiations emitted from the production processes in various industries. This has raised concern for the industrial hygienists, since radiations have posed a threat to the workforce and the community in general. Ionizing radiation has the most damaging effects to human health. Therefore, protection against such fatal radiation is necessary: the workforce should be protected as well as the community. Generally, radiation is the means through which energy travels from one point to another. Other definitions define radiation as an energy that ...

Cell phone use has effects and impacts in the long run when health and risks are concerned. Studies have shown that there are effects that are associated with the use of cell phones. There is some amount of electromagnetic radiations that are emitted by all cell phones. This is a point of concern with the way in which mobile phones are used with a close proximity to the head while they are being used. The main point of contention is the amount of radiation that can be considered to be safe and that one which can be considered to be harmful ...

Light and heat are the common types of radiation that human beings know. This is because the two can be seen and felt. However, there are other kinds of radiation that cannot be detected by human beings. In many cases, human beings constantly receive this invisible radiation either from the ground, air or sky. They can as well be found in processed drinks and foods. Ionizing radiation can be used in many fields; including hospitals where doctors use X rays in the diagnoses of injuries and other disease; industrial unit where they are used in checking repairs in components ...

Assignment 2 (Modules 4-6)

Background information: The diagram below shows the activation of mTORC1 by growth factors as already encountered in workshop 5. The activity of mTORC1 is mainly controlled by the tuberous sclerosis complex, which consists of a heterodimer of tuberin (TSC2) and hamartin (TSC1). The known function of hamartin is to stabilise tuberin. Tuberin has GAP (GTPase activating activity) towards the G-protein Rheb. Rheb is active in its GTP-bound form and activates the mTOR kinase resulting in phosphorylation of S6Kinase (S6K) and consequently ribosomal protein S6, as well as 4EBP-1, resulting in protein synthesis and cell growth. Growth factor signalling results ...

I. Natural Radioactivity

Radioactivity is a natural phenomenon occurring in isotopes of elements with atomic numbers 20 and higher. This takes place in isotopes of elements with unstable atomic nuclei. Radiation-emitting isotopes are called radioisotopes. When an atom has an unstable nucleus, the number of protons and neutrons are not balanced and there are either too many protons or there are too few of it. This imbalance causes the nuclei to spontaneously decompose to form a more stable nucleus. During this process, energy or particles are released and this is known as radiation. There are three types of radiation. These are either in ...

1.List of information that is the same a. The human epidermal growth factor receptor 2 (HER2) is over expressed in approximately 25%-30% cases of breast cancer. b. HER2 is a member of a trans-membrane growth factor receptor family with tyrosine kinase activity. c. Women with breast cancer and over-expressed HER2 have aggressive form of disease with considerable shortened overall survival and disease free survival. d. Trastuzumab, a recombinant humanized monoclonal antibody reduces growth of HER2. The monoclonal antibodies inhibit growth of HER2, thereby inhibiting tumor growth. e. Trastuzumab confers longer disease-free and overall survival when used ...

Introduction

Radiation is best described as energy which is passing through space or a medium (Khan 2010). There are two categories of radiation; non-ionizing and ionizing radiation. Non-ionizing radiation is important in the life systems and can be exemplified by heat, visible light, or radio waves; however, overexposure may be toxic. Ionizing radiation is the one commonly implied whenever the term radiation is used. Ionizing radiation has enough energy to change atoms which may result in changes in cell molecules leading to alterations within the cells and thus cell damage. Radiation is measured by the unit, rem, which is ‘roentgen equivalent ...