Converted phase (CP) elastic seismic signals are comparable in amplitude to the primary signals recorded at large offsets and have the potential to be used in seismic imaging and velocity analysis. We present an approach for CP elastic wave equation velocity analysis that does not use source information and is applicable to surface-seismic, microseismic, teleseismic and vertical seismic pro@…

Imaging shallow crustal structure is essential to extend the geological information from surface mapping to a depth and to develop tectonic models. We applied seismic tomography modelling to refraction data acquired along a 200-km-long line in the Dharwar craton of the Indian shield, and we derived a crustal velocity model that was evaluated with checkerboard tests to demonstrate the reliabilit…

We apply a combined geophysical-petrological methodology in order to study the thermal, compositional, density and seismological structure of the crust and upper mantle along two transects across the Arabia–Eurasia collision region. Results on the crustal thickness show minimum values beneath the Arabia Platform and Central Iran (42–43 km), and maximum values beneath the Sanandaj Sirjan zon…

Green tides are large growths or accumulations of green seaweeds that have been increasing in magnitude and frequency around the world. Because green tides consist of vast biomasses of algae in a limited area and are often seasonal or episodic, they go through periods of rapid growth in which they take up large amounts of nutrients and dissolved gases and generate bioactive natural products tha…

Although the majority of teleost fishes possess a fused lower jaw (or mandible), some lineages have acquired a secondary joint in the lower jaw, termed the intramandibular joint (IMJ). The IMJ is a new module that formed within the already exceptionally complex teleost head, and disarticulation of two bony elements of the mandible potentially creates a ‘‘double-jointed’’ jaw. The appare…

Tahun Terbit

2010

Tahun Terbit

2010

Ecologists urgently need a better ability to predict how environmental change affects biodiversity. We examine individual-based ecology (IBE), a research paradigm that promises better a predictive ability by using individual-based models (IBMs) to represent ecological dynamics as arising from how individuals interact with their environment and with each other. A key advantage of IBMs is that th…

This article discusses the role that local currency bond markets (LCBMs) can play in the long-term financing of sustainable development of Sub-Saharan African (SSA) economies, and presents an empirical analysis of the factors which may hinder or promote the development of such markets in SSA. Using a new dataset for 27 SSA countries, our findings support earlier research on SSA and other region…

Tahun Terbit

2010