775 resultados para Mass media and culture
Resumo:
Despite the position of the United States as de facto global hegemon, China is a rising power in the world. As Chinese power grows, the projection of Chinese influence will be felt most acutely in Southeast Asia. Whether to accommodate, contain or resist China will depend on future developments that none can foresee, including Chinese ambitions, the policies of other international players (the U.S., Japan), and the cohesion or fragility of the Association of Southeast Asia Nations (ASEAN). This paper argues that in deciding how best to deal with China, two factors that will influence the countries of Southeast Asia are their own long histories of bilateral relations with China and their own differing conceptions of how foreign relations should be conducted. This is to argue that history and culture are central to any understanding of the likely future shape of China-Southeast Asia relations. Only by taking history and culture into account will analysts be in a position to predict how the mainland and maritime states of Southeast Asia are likely to respond to a more powerful, confident and assertive China.
Resumo:
This paper, focusing principally on post-Lapita times, outlines the course and outcomes of work undertaken over the last two decades in the West New Britain-Vitiaz Strait-north New Guinea coastal region. It presents two principal arguments. The first is that major periods of movement and abandonment documented in the archaeological sequences of this region from about 3,500 years ago coincide with the record of volcanism in the Talasea-Cape Hoskins area. The second is that the post-Lapita sequences of this region differ significantly from the post-Lapita sequences emerging in the island arc reaching from Manus via New Ireland to southern and eastern island Melanesia, which show continuous occupation and pottery production.
Resumo:
We present a new set of dissipationless N-body simulations to examine the feasibility of creating bright ellipticals (following the Kormendy relation, hereafter KR) by hierarchically merging present-day early-type dwarf galaxies, and to study how the encounter parameters affect the location of the end product in the (mu(e))-R-e plane. We investigate the merging of one-component galaxies of both equal and different masses, the merging of two-component galaxy models to explore the effect of dark haloes on the final galaxy characteristics, and the merging of ultracompact dwarf galaxies. We find that the increase of (mu(e)) with R-e is attributable to an increase in the initial orbital energy. The merger remnants shift down in the (mu(e))-R-e plane and fail to reach the KR. Thus, the KR is not reproducible by mergers of dwarf early-type systems, rendering untenable the theory that present-day dwarfs are responsible for even a small fraction of the present-day ellipticals, unless a considerable amount of dissipation is invoked. However, we do find that present-day dwarfs can be formed by the merger of ultracompact dwarfs.
Resumo:
As humans expand into space communities will form. These have already begun to form in small ways, such as long-duration missions on the International Space Station and the space shuttle, and small-scale tourist excursions into space. Social, behavioural and communications data emerging from such existing communities in space suggest that the physically-bounded, work-oriented and traditionally male-dominated nature of these extremely remote groups present specific problems for the resident astronauts, groups of them viewed as ‘communities’, and their associated groups who remain on Earth, including mission controllers, management and astronauts’ families. Notionally feminine group attributes such as adaptive competence, social adaptation skills and social sensitivity will be crucial to the viability of space communities and in the absence of gender equity, ‘staying in touch’ by means of ‘news from home’ becomes more important than ever. A template of news and media forms and technologies is suggested to service those needs and enhance the social viability of future terraforming activities.
Resumo:
Diverse ketosynthase (KS) genes were retrieved from the microbial community associated with the Great Barrier Reef sponge Pseudoceratina clavata. Bacterial isolation and metagenomic approaches were employed. Phylogenetic analysis of 16S rRNA of culturable sponge-associated bacterial communities comprised eight groups over four phyla. Ten KS domains were amplified from four genera of isolates and phylogenetics demonstrated that these KS domains were located in three clusters (actinobacterial, cyanobacterial and trans-AT type). Metagenomic DNA of the sponge microbial community was extracted to explore community KS genes by two approaches: direct amplification of KS domains and construction of fosmid libraries for KS domain screening. Five KS domains were retrieved from polymerase chain reaction (PCR) amplification using sponge metagenome DNA as template and five fosmid clones containing KS domains found using multiplex PCR screening. Analysis of selected polyketide synthase (PKS) from one fosmid showed that the PKS consists of two modules. Open reading frames located up- and downstream of the PKS displayed similarity with membrane synthesis-related proteins such as cardiolipin synthase. Metagenome approaches did not detect KS domains found in sponge isolates. All KS domains from both metagenome approaches formed a single cluster with KS domains originating from metagenomes derived from other sponge species from other geographical regions.