The Human Anatomy and Possible Threats Essay Example | Topics and Well Written Essays - 3000 words

The Human Anatomy and Possible Threats - Essay Example This section presents the systems of the human body and how they function in swift collaboration. The section aims to reveal how each of the various organ systems is equally important in enabling human beings to function as complete beings. The main systems of the human body are the cardiovascular system, the digestive system, the endocrine system, the urinary system, the immune system, the muscular system, the nervous system, the reproductive system, and the respiratory system (Schlossberg and Zuidema, 2007). Wolfsthal (2008) argues that all the mentioned systems work in harmony to ensure that the body maintains a steady state with sufficient nutrients and oxygen, as well as the correct temperature and the right pH level (level of acidity or basicity of the body) ((Steding, 2009). The circulatory system is responsible for the circulation of blood and lymph around the body (Swearingen, 2012). The circulation in turn transports oxygen, carbon dioxide, nutrients, hormones, and other su bstances to and from the body (Wolfsthal, 2008). This phenomenon can also be referred as Cellular Metabolism (Waller and Lloyd, 2008). Cellular Metabolism can be defined as the cumulative sequence of biochemical reactions, which occur within a cell. The reaction is responsible for the production of Adenosine Triphosphate (ATP-the molecule which stores all the energy derived from food). Cellular metabolism also enables processes like respiration and the disposal of waste products from the body.

Attacks on national security through the use of Internet and computers Research Paper

Attacks on national security through the use of Internet and computers - Research Paper Example America like countries are currently tightening security measures against information warfare. Information warfare (IW) is normally classified into two groups; IW without using physical force during peace time and IW with physical force during military wars. Now the important question is whether information warfare without physical force can be labelled as warfare or not. This paper tries to answer this question. Approximately two years ago, IW was used to disrupt the transfer of money from one arm of a Middle Eastern terrorist group to another. This terrorist financiers bank account was covertly broken into and the money was diverted. In a similar move at the beginning of the Kosovo conflict, methods were discussed and approved to put pressure on President Milosevic; these included tampering with or breaking into his bank accounts and disrupting his personal communications (Church, 2000). From the above details, it is evident that IW can be used to cause immense economic damage to a country even during peace time. As mentioned earlier, it is difficult for the victim country to identify the source of attack and take preventive measures against cyber-attacks or IW. Computer networks are connected globally and it is easy for advanced countries to attack enemy targets without causing any human casualties. Trained computer professionals can break all the firewalls and cause immense financial damages in the enemy countries. Even though there are plenty of international laws against military wars, these laws are inapplicable in the case of IW. In other words, the present cyber laws are incapable to handle anonymous attacks. Cyber warfare will involve disruption of crucial network services and data, damage to critical infrastructure, and the creation of uncertainty and doubt among opposing commanders and political leaders. Cyber-attack provides an ability to strike both tactical and strategic targets from a distance using inexpensive