Secular pilgrimages and sacred tourism in the Indian Himalayas     

Shalini Singh 《GeoJournal》2005,64(3):215-223

Assuming the above quote as a true portrayal of pilgrims, this article attempts to describe the prototypical pilgrim from amongst the wide array of contemporary religious and secular tourists. To achieve this end, two approaches have been adopted. Firstly, the phenomenon/concept of pilgrimages have been discussed, so to distinguish it from the tourism phenomenon and; Secondly, the geographical notion of genus loci has been employed to exemplify the fundamental quest for ‘geopiety’ attained through the unification of the pilgrim’s intrinsic belief with its external location. The second part of the article illustrates the forgoing through an exploration of Himalayan pilgrimages. This has been achieved with a discussion of the emerging practices and recent trends in Himalayan pilgrimology. This appraisal alludes to Cohen’s quest for a ‘Theology of Tourism.’ The article concludes with an examination of a specific genre of contemporary tourists in the Indian Himalayas, who have been identified as ‘environmental pilgrims.’

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Obituary Prof. R.S. Chaturvedi founding director, UPRSAC (5.9.1936–9.11.2001)     

A. N. Singh 《Journal of the Indian Society of Remote Sensing》2001,29(3):vi-vi

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Effect of parallel electric field on charged particle precipitation     

R. Prasad  R.N. Singh 《Planetary and Space Science》1981,29(9):915-924

Considering the presence of electric field parallel to geomagnetic field in the magnetosphere, the problem of wave-particle interaction has been considered. Dispersion equation of whistler mode wave in presence of parallel electric field has been derived. Using the effective dispersion equation, the wave-particle interaction has been reformulated to account for the effect of parallel electric field. Using charged particle energy spectrum and magnetospheric field and plasma models, the flux of electron precipitation has been computed. It is shown that the parallel electric field plays an important role and may work in simultaneity with other processes known for enhancement of electron precipitation.  相似文献   

Consequences of CP-violation in cosmic-ray sources     

P. N. Okeke  Santokh Singh 《Astrophysics and Space Science》1981,75(2):527-530

In this paper we show that CP-violation is operating in most cosmic-ray sources such as black holes, active galactic nuclei, supernova remnants, and that this leads to the in-equality of the electron—positron component of cosmic rays.Further implications of this result are also discussed.  相似文献   

Simulation of nose whistlers: An application to low latitude whistlers     

Kalpana Singh  R.P. Singh  R.N. Singh 《Planetary and Space Science》2006,54(6):594-598

Simulation technique for whistler mode signal propagating through inhomogeneous plasma using WKB approximation has been developed (Singh, K., Singh, R.P., Ferencz, O.E., 2004. Simulation of whistler mode propagation for low latitude stations. Earth Planet Space 56, 979-987). In the present paper, we have used it for the analysis of recorded signals at low latitudes and estimated the nose frequency, which is not observed on the dynamic spectra. At low latitudes nose frequency is ∼100 kHz or more and therefore it is absent in the dynamic spectra due to attenuation of the signal at higher frequencies. The importance of nose frequency is in determining the exact path of propagation, which is required in probing of ambient medium. It is shown that the method permits to study the nose frequency variation, it can be used to deduce physical parameters as the global electric field. A case study permits to get a reasonable value of the electric field, which up to now could not be done at very low latitude.  相似文献   

Singularities and cosmic censorship     

T. P. Singh 《Journal of Astrophysics and Astronomy》1997,18(4):335-338

We give an elementary overview of the subject of gravitational collapse in classical general relativity. Recent theoretical evidence for the formation of black-holes and naked singularities is summarised.  相似文献   

Massive compact dwarf stars and C-field     

L. P. Singh  P. K. Sahu 《Journal of Astrophysics and Astronomy》1997,18(1):15-21

The effect of C-field in high density matter has been studied. We find that the negative energy and negative pressure of the C-field helps in formation of massive compact stable neutron stars of mass ∼ 0.5 solar mass which is in the range of 0.01 to 1.0 solar mass of recently observed dwarf stars.  相似文献   

Point Source in a Layer Overlying a Semi-infinite Solid with Special Reference to Diffracted Waves–Aperiodic Source     

Sarva Jit Singh 《Geophysical Journal International》1967,12(2):209-223

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On the stability of twisted magnetic fields     

S. K. Trehan  Manohar Singh 《Astrophysics and Space Science》1978,53(1):165-172

The stability of helical magnetic fields is investigated when fluid motions are present along the lines of force. The general dispersion relation is obtained and some limiting cases are examined. It is established that the configuration can be unstable when the velocity field exceeds a certain critical value. This result is to be compared with the case when the helical fields confined by a rigid boundary are stable when the energy density in the velocity field is at least equal to that of the magnetic field.  相似文献   

Use of Roche coordinates in the problems of small oscillations of rotationally distorted stellar models     

C. Mohan  V. P. Singh 《Astrophysics and Space Science》1978,54(2):293-304

The system of Roche coordinates developed by Kopal to study the problems of stars in close binary systems has been used to study the problems of small oscillations of rotationally distorted stars.  相似文献