The present study considered the situation of kilka stocks in last decades by using overfished biomass threshold, fishing effort ratio and fishing mortality proxy during 1991-2010. The CPUE index of anchovy and mixed-species of kilka indicated an undepleted from 1991 to 2000. In 2000, the CPUE ratio declined to close to the “in danger” region, and subsequently collapsed to “overfished” region f...

Since the first launch of an artificial satellite—Sputnik 1—in 1957, space activities have played a significant role as pioneering technological sector with high impact on international scenario. The system has changed rapidly in last 30 years, result intersystemic transition from bipolar and simplified 20th century to new more complex 21st century. post-Cold War undergone multiple changes its ...

One of the characteristics of the modern international systems is the undeniable role the new communication technologies play in different sections of human societies. Modern communication technologies such as satellites and computers have challenged the national authority and sovereignty of Vestfallian states.  Although national states, specially, in the third world countries, extremely resist...

T his paper investigates the gain of bilateral trade between China and U.S. in manufacturing sectors when both countries play a role in asymmetric (biased) growth of  international trade. Our model includes a special case of Biased Growth Theory in international trade. We collected labor productivity, export and import data by using classification of manufacturing industries, for U.S...

the research aims to study the related context factors with structure of power in family.  the method by which this research has been done is survey and the data has been collected through the inquiry from a sample size of 600 women in shiraz through quota _ classification.the instrument of data collection sampling is questioner. our research is based on resource theory. structure of power has ...

in the last decade of the twentieth century, the field of international relations studies witnessed a theory based on which a model was introduced to solve complex equations in the field. the theory was introduced by joseph s. nye and expanded by the united states diplomacy. the theory is based on “the influence of the cultural attractions and values on creating power” in civilizational domain....

Background and Objectives: In this paper, a new design strategy was proposed in order to enhance bandwidth and efficiency of power amplifier. Methods: To realize the introduced design strategy, a power amplifier was designed using TSMC CMOS 0.18um technology for operating in the Ka band, i.e. the frequency range of 26.5-40GHz. To design the power amplifier, first a power divider (PD) with a ver...