Aug 22, 2006
Aug 17, 2006
A study of differences between the human and chimp genomes has identified a gene associated with neural growth in the cerebral cortex – the part of the brain involved in processing thoughts and learning – as having undergone “accelerated evolutionary change”.
Katherine Pollard and colleagues at the University of California Santa Cruz, US, suggest that the fast-changing gene may help explain the dramatic expansion of this part of the brain during the evolution of humans.
They identified the rapidly evolving region of DNA – called human accelerated region 1 (HAR1) – after carrying out an extensive computational comparison between the genomes of humans, chimpanzees and other vertebrates."
Aug 14, 2006
Aug 11, 2006
Aug 10, 2006
Aug 8, 2006
* Since 1992 the number of conflicts leading to over 1,000 battle-deaths has dropped by 80 percent.
* Wars between countries are rare – now less than five percent of all armed conflicts.
* While there were 25 coups or attempted coups in 1963, in 2004 there were only ten and all of them failed.
* The average number of people reported killed per conflict per year in 1950 was 38,000 but in 2002 was 600.
* Since the late 1970s the number of states governed by authoritarian regimes has dropped from 90 to 30."
Aug 7, 2006
Aug 2, 2006
formation, withdrawal, and imitation. In everyone of these outcomes the ways of power are spread throughout the system. This is the parable of the tribes."
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Aug 1, 2006
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collectively and to transmit its fruits down through the generations. At that point, the capacity to learn became transmuted into the far more potent ability to create culture.
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The question is: what determines the direction in which civilization evolves? It is a vital question, for if we are shaping our destiny without comprehension, how likely is it we will shape it well? For our power to exceed our understanding is dangerous. What is remarkable about this question besides its fundamental importance is the paucity of attention it receives. There seem to be two principal reasons for this neglect: (1) some do not search for an answer because they believe none can exist; and (2) some do not search for an answer because they assume they already know it.
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Now, change has so quickened that one cannot help but witness dramatic metamorphoses in civilized societies. Before our eyes, ancient tribal groups are being welded into nations. Whole societies adopt new forms of social and economic organization. Intellectual revolutions and technological innovations constantly alter people's methods of production, transportation, housing. Traditional values and ideologies all over the world are altered or overthrown as they encounter new and unexpected conditions."
Jul 27, 2006
World population is currently growing by 1.1 percent annually. As shown in the chart above, nearly all of this population growth is occurring within developing countries. As a result, roughly 9 in 10 children (1.6 billion total children) under the age of 15 currently reside in developing parts of the world, up from 7 in 10 in 1950 (EarthTrends and UNPD). By 2050, total population is expected to reach 9.1 billion (medium projection) despite overall declines in population growth rates. Major growth is expected to occur in developing countries' urban populations; assuming current trends "poor countries will have to build the equivalent of a city of more than one million people each week for the next 45 years" (Cohen, 2005). Limited access to health care, contraception, and educa! tion in many of these countries has resulted in national demographic trends that exhibit stark contrasts to those of the industrialized world (e.g., fertility rates), leading to high population densities in developing regions of Africa and Asia (see map).
Global Population Density. Data are for 1995. For more information, please see the full source notes.
Jul 26, 2006
1. Physics and Chemistry -- from the big bang through the entire prelife era of the universe.
2. Biology and DNA -- stretching from the beginning of life on earth.
3. Brains -- the advent of human dominance.
4. Technology -- approaching culmination in the 20th century.
5. Merger of Human Technology and Human Intelligence -- which is the Singularity.
6. The Universe Wakes Up -- the other side of the Singularity."
Jul 25, 2006
Jul 20, 2006
In China' case, however, where urbanization and industrialization are far from being finished and urbanization lags far behind industrialization, criteria applied to economies which have completed the processes may not work well.
Theoretically, the industrialization and urbanization process brings about a flow of labor and capital to urban areas and industrialized sectors, which in turn benefits urban residents and capital owners more in the income distribution and deteriorates the income gap.
Once the urbanization and industrialization process has been finished, the capital will return to the agricultural sector to relieve the income inequality."
Therefore, the Gini Coefficient will first go up and then down. It is natural to see countries in the process of urbanization and industrialization with a higher Gini figure than those that have completed the process.
Jul 18, 2006
This can all sound a little like, well, ’60s-style utopianism. After all, Marx himself believed that the industrial proletariat would revolt against the bourgeoisie, creating a state where the workers own the means of industrial production. It’s easy to see an echo of that in blogosphere triumphalism."