other persons who are mentioned because at some time something has been named after them. Historians may hope that future editions will not prune too much on the ground of obsolescence. Manifestly there is no outright "best buy": Firkin & Whitworth contain material not to be found elsewhere, and similarly much that they do not cover is available elsewhere. All depends on what you seek. They can...

The spatial and temporal variations of several environmental parameters over the Southeast Asia region recorded by remote sensing satellites for the past one to two decades are examined in relation to climate change. At the South China Sea, an increasing trend for sea surface temperature at a rate of 0.1 to 0.5 degree per decade was observed while the sea level anomaly increases at 2 to 6 cm pe...

The integer nj depends on the group representation j, and the theory is ill-defined if nj is an odd integer. Witten showed, invoking an Atiyah-Singer index theorem [2] for a certain five-dimensional Dirac operator (the fifth coordinate is essentially the path parameter t), that nj is odd only for the representations in (1). Besides the fundamental representation with j = 1/2, the representation...

We present an M-theory proof of the anomaly of Freed and Witten which in general shifts the quantisation law for the U(1) gauge field on a D6-brane. The derivation requires an understanding of how fields on the D6-brane lift to Mtheory, together with a localisation formula which we prove using a U(1)-index theorem. We also show how the anomaly is related to the K-theory classification of Ramond...

In this paper, we deal with the effect on the refractive index of seasonal anomaly in height of the ionospheric F2 peak for both, collisional and collisionless cases in the by using the real geometry of Earth’s magnetic field for north hemisphere. It is possible to say that there is an anti-symmetric harmony between the electron density and the all waves (for collisional and collisionless cases...

In the continuum, a topological obstruction to the vanishing of the non-Abelian anomaly in 2n dimensions is given by the index of a certain Dirac operator in 2n+2 dimensions, or equivalently, the index of a 2-parameter family of Dirac operators in 2n dimensions. In this paper an analogous result is derived for chiral fermions on the lattice in the overlap formulation. This involves deriving an ...

The paper presents an algorithm for automatic detection of UXO anomalies in total-field magnetic data based on the concept of structural index (SI) of a magnetic anomaly. The magnetic field produced by a dipole-like source, such as a UXO, varies with inverse distance cubed and therefore has an SI of 3. Identifying magnetic anomalies having structural indices of 3 enables direct detection of pot...

We show that massless RR tadpoles in vacuum configurations with open and unoriented strings are always related to anomalies. RR tadpoles arising from sectors of the internal SCFT with non-vanishing Witten index are in one-to-one correspondence with conventional irreducible anomalies. The anomalous content of the remaining RR tadpoles can be disclosed by considering anomalous amplitudes with hig...