Free Essays on Surface to Get Inspired & Learn by Example

Other

(Department)

Abstract

Breast cancer is the form of cancer that develops in the breast tissue. It is usually represented by lump/s in the breast, dimpling and red scaly patch of the skin, change in the shape of breast, swelling in the armpit, and fluid coming from the nipple. There are different types of breast cancer, and the most important aspect of different cancers is the presence or absence of different receptors that are involved in the development or growth of cancer. Three important types of receptors that are related to breast cancer cells are Oestrogen receptor (ER) involving oestrogen, Progesterone Continue reading...

Abstract:

The total hip replacements are indispensable medical procedures that address the hip problems of people. The medical practice for some time has been an adequate solution for hip problems. However, problems has been discovered that the materials used for the implants that are composed of metals and alloys cause fretting corrosion which leads to various health complications and implant failure. This paper discusses the hip joint implants and the fretting corrosion that complicates the medical practice. It touches the adverse effects of the implant corrosion in the health of the patients. Furthermore, this paper divulges some of the design Continue reading...

Land Feature Paper

The Pacific Northwest is the most volcanically active regions in the United States. It consists of several volcanic peaks which stretch all the way from Canada to northern California. Falling in this region is the southwester territory of Washington State, which has witnessed some of the most spectacular volcanic activities in recent times. Mount St. Helens, which erupted in 1980, is located in this region (Harris, 2005). The volcanic eruptions in this region result from plate tectonic movements.
The plate tectonic theory is based on the postulation that the Earth’s outer layer, lithosphere, is composed of several plates. Continue reading...

Mining refers to the extraction of valuable mineral resources from the earth’s crust. While some minerals are found at the earth’s surface, other minerals are found deeply below the earth’s surface. Irrespective of their location in the crust, the extraction of minerals is a complex process often fraught with danger. America’s mining industry has been supported by the increased demand for raw materials by other sectors of the economy. As the demand for mineral resources has increased, mining has become more complicated leading to accidents. Mine disasters refer to accidents that occur during mining activities Continue reading...

Abstract

Radiation cataractogenesis (RCG) is deterministic. It does not occur below a minimum threshold dose. RCG is generally believed as dose-related. Sliney (1986) believed that its severity is also dose-related. The severity increased and the latency decreased as radiation dose increased above that threshold. The lens of the eye is nonvascular and is known to experience no cell loss over its lifetime, indicating that any damage to its cells will not result to the removal of these cells for lack of existing mechanism. Three induction mechanisms were explored (direct, indirect, and oxidative, which separately creates oxidative stress inside the lens Continue reading...

PEME2010

Summary
The experiment is meant to study the carbon dioxide absorption process in a packed tower mechanism column. The pressure performance of a packed column was determined experimentally. The calculations shoed that the pressure difference between the top and bottom part of the column is directly proportional to air flow rate; as the water flow rate increases, the pressure difference increases as well. However, at high water and air flow rates, the column flooding appears. The rate of carbon dioxide absorption was calculated. It was determined, that absorption increased carbon dioxide concentration by 80%.

Introduction

Gas absorption is an industrial Continue reading...

Introduction:

The aim of this report is to explain the concepts of 5S, waste elimination, and Visual Management in Lean Manufacturing. The report also gives examples of 5S applications and discusses issues in waste such as burden and unevenness from a True Lean perspective. The resultant impact of applying the concepts above to ensure the stability of systems and processes and the ability to perform work ‘normally’ is also discussed.

5S system:

5S is a system that aims to optimize productivity and reduce waste by “cleaning up” and maintaining an orderly workplace. There exist various schemas for representing 5S activities but for Continue reading...

Microsoft Windows Access Control

Appropriate Microsoft Windows access controls

The access control of Windows is complex associated with various permission grants. The system assumes that the installation of applications is under Program Files that has a safe default set of permissions. Any application installed in a non-default location goes to C folder. The user can modify the settings to have a Collaborative Access Control List. An administrator should have two accounts one for regular work, and another for administrative work (Homer & Isbell, 2004). The administrator should create user accounts using malware and least privilege where users do not have administrative permissions. An administrator should Continue reading...

Essay 1. Immune Systems

There are two major groups of foreign substances and microscopic organisms that the immune system of the body could distinguished. The first group are the antigens that are freely moving around the body which includes viruses and foreign cells. The second group are the cells displaying aberrant major histocompatibility complex (MHC) proteins (Brito & Hinton, 1993). These cells includes self-cells which are invaded by the tumor cells and pathogens. In general, humoral immune response recognizes the antigens that are freely circulating around the body while the cell-mediated response recognizes the cells displaying aberrant MHC proteins (Rosenberg & Gallin, 1999).
The humoral Continue reading...