排序方式: 共有2条查询结果,搜索用时 15 毫秒
1
1.
For more than a century, hand‐pulled rickshaws have been a prominent part of Calcutta's cityscape. Under the veil of modernization, progress, and globalization, however, the government of West Bengal State declared that rickshaws cause traffic congestion and constitute an exploitative use of human labor. Yet, despite the government‐imposed ban, rickshaws continue to ply the streets of central Calcutta. Based on interviews with rickshaw owners, operators, public officials, and local residents, we examine the cultural politics surrounding rickshaw pulling in Calcutta. This article shows that the rickshaw wallahs (pullers), who operate as part of the informal economy, provide an expansive range of services not limited to transportation. Indeed, the rickshaw wallahs form an integral part of Calcutta's social fabric, having made a place for themselves by facilitating social interaction and challenging hegemonic ideas and practices about who belongs where. 相似文献
2.
P. R. Reddy N. Venkateswarlu A. S. S. S. R. S. Prasad P. Koteswara Rao 《Journal of Earth System Science》1993,102(3):487-505
An integrated interpretation of the seismic refraction and wide-angle reflection data, geological and structural details,
bore-hole litholog information and gravity particulars along Beliator-Burdwan-Bangaon deep seismic sounding (DSS) profile
in West Bengal basin has helped in getting a crustal density model. This model is consistent with all available surface and
bore-hole geophysical data that can realistically explain the trend, shape and magnitude of gravity data across the West Bengal
basin.
The present exercise pointed out that the thick sedimentary column (with thickening trend towards east), conspicuous lateral
variations in the Moho configuration (with a prominent 40 km wide domal feature covering the eastern part of the stable shelf
and trie western segment of the deep basinal part) coupled with the structural trends in the basement, mid and lower crustal
columns have combinedly contributed to the gravity effect and as such the prominent lateral variations in the Bouguer gravity
anomalies could be mainly attributed to regionally extending causative factors.
The synthesis clearly points out the need to take proper care in selecting the density values as direct conversion of velocities
into densities, adapting well-known conversion formulae, does not always hold good specially in the eastern part of the West
Bengal basin where a huge thickness of sediments (velocities ranging between 4 to 5 km/sec) of high density 2.6 to 2.8 g/cm3 are sandwiched between younger sediments and the crystalline basement. 相似文献
1