Cyberspace has emerged with technology. As the relation increase between people and cyber space, The issue of security in cyberspace also gains a new dimension. A series of cyber events are the basis for understanding cyber security. Cyber security has been intertwined with computer systems and technology in general. Technical aspects of cyber security for constituting the subject of many different studies have not been addressed. Security in cyberspace without boundary is a necessity of individual, state, international, and even global. It is aimed to draw attention to this need in the study.

Rational choice theory is a framework formed in order to explain organizational and economical behaviours in decision making process. Basically, it is claimed that people calculate costs and benefits of their actions before initiating to do any activity. Although Rational Choice Theory has a quite important background which various social science fields benefit from, it frequently confronts some criticisms especially coming from Human relations school. Bounded Rationality Approach offers an argument by claiming that human being has limited mind to make optimum choices, therefore, tries to satisfy rather than optimize. There is still an ambiguity in the literature whether these two approaches should be used separately or mutually complementary. Accordingly, this paper discusses whether Bounded Rationality Approach can replace Rational Choice Theory by overcoming lacks of it. It is concluded that Bounded Rationality Approach is not able to substitute Rational Choice Theory, though its persuasive arguments provide an insight in order to comprehend the complex decision making process.

As a matter of course, quickly irrepresible spreading of the knowledge have been positive results. The people reached swiftly the knowledge with the using the internet as commumication tool. The internet besides the being as communication tool, it is also used as an substructure service. The institutions connected to the internet are speeding communication by way of the connecting to each other through computers.The operations,in the pre-Internet era, which done by difficulty are now done very simply and quickly. Diplomacy, the instrument of execution of foreign policy, had undergone a great transformation from the earliest times until the day it arrives. The changes occuring in the communication field with the globalization, in the context of, caused the important influences in the diplomacy and it was caused the arising out of the new study field in diplomacy which called Cyber Diplomacy. In this study, will be try explain to the differences between the cyber diplomacy concept and traditional diplomacy, and contributions of the concept to the diplomacy field.

Organismic approaches to civilizations disseminate the common sense perspective that "civilizations born, live, and die", but generally do not provide a systemic and analytical explanation for this process other than referring to biological analogies. In order to have a more comprehensive understanding on the life-cycles of the civilizations, they should be conceptualized as dissipative structures which are created and sustained through continuous re-generation of their peculiar orders reflecting their sets of social values by utilizing both the material and non-material environmental flows. In this study life-cycles of civilizations will be studied as broad societal orders dependent on environmental flows by using an analytical model based on complexity theory and the generalization and normalization crisis in contemporary global order will tried to be explained according to this model. In explaining life-cycles of civilizations, insights from non-linear thermodynamics will be used and threshold behaviors in complex systems as well as importance of human agency will also be taken into consideration.