SIMPLIFIED MAGNETIC INTERPRETATION OF THE GEOLOGIC CONTACT AND THIN DIKE

Geophysics ◽  
1977 ◽  
Vol 42 (6) ◽  
pp. 1236-1240 ◽  
Author(s):  
John M. Stanley

A simple procedure has been applied to the interpretation of magnetic profiles measured perpendicular to the strike of contact or dike‐like structures. The method is very easy and rapid to apply, and is applicable to airborne or ground level data. It does not necessarily require computing facilities but may be automated if desired. As the interpretation requires only a relatively short length of traverse (usually less than 3 depth units) in close proximity to the structure, the procedure results in a high immunity to neighboring disturbances. A worked example using theoretical data shows its effectiveness.

Author(s):  
Luke Abbs

Abstract Ethnic riots are sporadic and localized incidents of low-intensity violence, with civilians from one ethnic group engaging in vicious attacks on a rival ethnic group. While systematic research on ethnic violence has almost exclusively focused on organized armed conflict, comparably little quantitative research has considered the causes of low-intensity ethnic violence. Building on existing case-based research on inequality and ethnic riots, this article argues that ethnic rioting can be explained by collective motivations for group violence that emerge from highly unequal local ethno-political configurations, where politically dominant groups coexist with groups that are discriminated or have recently lost political power. To test this argument, the article deploys a spatially disaggregated analysis of all African states between 1990 and 2008, combining new dyadic data capturing the location of ethnic riots with disaggregated grid-level data on ethno-political representation. I find ethnic riots are more likely to occur in discriminated group areas, in locations where a group has recently lost political representation and where such groups live in close proximity of politically dominant groups.


2004 ◽  
Vol 22 (9) ◽  
pp. 3323-3333 ◽  
Author(s):  
V. Doumouya ◽  
Y. Cohen

Abstract. The longitudinal variation of the Equatorial Electrojet (EEJ) intensity has been revised including data from the equatorial station of Baclieu (Vietnam), where an unexpected enhancement of the EEJ magnetic effects is observed. The features of this longitudinal variation were also obtained with the CHAMP satellite, except in the Pacific and Atlantic Oceans, where no ground level data points were available.The EEJ magnetic signatures recorded on board the CHAMP satellite have been isolated for 325 passes in different longitude sectors around local noon. The results have been compared with the EEJ magnetic effects computed using the Empirical Equatorial Electrojet Model (3EM) proposed by Doumouya et al. (2003). The modeled EEJ magnetic effects are generally in good agreement with CHAMP observed EEJ magnetic signatures.


Polar Record ◽  
2011 ◽  
Vol 48 (1) ◽  
pp. 63-74 ◽  
Author(s):  
Anna Mikheeva ◽  
Anton Novichikhin ◽  
Olga Tutubalina

ABSTRACTAn experimental linear mixture modelling using ground spectroradiometric measurements in the Kola Peninsula, Russia has been carried out to create a basis for mapping vegetation and non-vegetation components in the tundra-taiga ecotone using satellite imagery. We concentrated on the ground level experiment with the goal to use it further for the classification of multispectral satellite imagery through spectral unmixing. This experiment was performed on the most detailed level of remote sensing research which is free from atmospheric effects and easy to understand. We have measured typical ecotone components, including Cetraria nivalis, Betula tortuosa, Empetrum nigrum, Betula nana, Picea abies and rocks (nepheline syenite). The result of the experiment shows that the spectral mixture is indeed formed linearly but different components have different influence. Typical spectral thresholds for each component were found which are significant for vegetation mapping. Spectral unmixing of ground level data was performed and accuracy was estimated. The results add new information on typical spectral thresholds which can potentially be applied for multispectral satellite imagery when upscaling from high resolution to coarser resolution.


2003 ◽  
Vol 19 (1) ◽  
pp. 1-23 ◽  
Author(s):  
M. Çelebi

A simple procedure to identify site frequencies using earthquake response records from roofs and basements of buildings is presented. For this purpose, data from five different buildings are analyzed using only spectral analyses techniques. Additional data such as free-field records in close proximity to the buildings and site characterization data are also used to estimate site frequencies and thereby to provide convincing evidence and confirmation of the site frequencies inferred from the building records. Furthermore, simple code-formula is used to calculate site frequencies and compare them with the identified site frequencies from records. Results show that the simple procedure is effective in identification of site frequencies and provides relatively reliable estimates of site frequencies when compared with other methods. Therefore the simple procedure for estimating site frequencies using earthquake records can be useful in adding to the database of site frequencies. Such databases can be used to better estimate site frequencies of those sites with similar geological structures.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Anam Javeed ◽  
Muhammad Yar Khan ◽  
Mobashar Rehman ◽  
Asif Khurshid

PurposeThe aim of this study is to gather and analyse the information regarding the level of awareness and commitment of the public as well as the organizations of Pakistan pertaining to sustainable development goals (SDGs).Design/methodology/approachA sample of 500 respondents in total including employs and general public is selected for their opinion regarding SDGs. The data was collected by personal administration of questionnaires in organizations and general public. The data has been collected from federal and provincial capitals of Pakistan. The data has been analysed using Smart PLS and the hypothesized relationships have been tested using regression analysis.FindingsThe level of awareness as well as level of commitment towards the fulfilment of SDGs varies across the cities of Pakistan according to the business volume and their affiliation with the United Nations.Research limitations/implicationsThis study has been conducted in Pakistan only however a cross-country implementation of the framework and comparison would have yielded more in-depth facts.Practical implicationsThis study provides the policy makers with the ground-level data regarding the awareness and commitment of Pakistani organizations and public towards SDG fulfilment. A glance towards the attitudes of the people towards the subject could also be seen through this study. It could be further utilized and referred by other researchers for comparison with their own studies regarding SDGs.Originality/valueThis a comprehensive study conducted at federal and provincial level of Pakistan which has yielded ground realities towards the implementation of SDGs. The results could be used for policy making and planning at national level.


1996 ◽  
Vol 49 (2) ◽  
pp. 499
Author(s):  
AT Masters ◽  
RT Sang ◽  
WR MacGillivray ◽  
MC Standage

Recent data from two methods in which high resolution laser radiation is used to assist in determining electron-atom collision parameters are presented. The electron superelastic method has yielded the first measurement of Stokes parameters for electron de-excitation of the 32D5/2–32P3/2,1/2 transition of atomic Na, the upper level having been optically prepared by resonant, stepwise excitation from the 32S1/2 ground level via the 32P3/2 level using two single mode lasers. As well, we report on the development of a model to determine the optical pumping parameters for superelastic scattering from the 32P3/2 level when it is prepared by two lasers exciting from the F = 1 and F = 2 states respectively of the 32S1/ 2 ground level. Data are also presented for collision parameters for the excitation of the 61So–61 PI transition of the I = 0 isotope of Hg by electrons of 50 eV incident energy. The technique employed for these measurements is the stepwise electron–laser excitation coincidence method, in which the electron excited atom is further excited by resonant laser radiation, and fluorescence photons emitted by relaxation from the laser excited state are detected in coincidence with the scattered electron.


2021 ◽  
pp. 001946622110635
Author(s):  
Priyabrata Sahoo ◽  
Kalandi Charan Pradhan ◽  
Tapaswini Nayak

This study examines the inclusiveness of poverty reduction among the newly formed states of undivided Andhra Pradesh by looking into the poverty among the different socio-religious groups both in the rural and urban regions during the 2000’s. The major proposition that has highlighted in this study: which socio-religious groups are more poverty ridden in the undivided Andhra Pradesh and its bifurcated states (Andhra Pradesh and Telangana)? The National Sample Survey Organisation unit level data (61st and 68th rounds) on Consumption Expenditure Survey have been used for the analysis. The result reveals that Telangana is having lower poverty level than Andhra Pradesh and records a faster reduction in poverty during 2004–2005 to 2011–2012. Andhra Pradesh constitutes around 70% of the total poor of the undivided Andhra Pradesh. This study found that most of the Scheduled Tribes, Scheduled Castes among the social groups and Muslims among the religious groups are more vulnerable and having higher head count ratio than the state average. Although several welfare programmes and schemes have already been implemented to eradicate poverty and inequality, still it is not effective in the ground level. Based on this argument, our study suggests that the schemes should focus on different sections of the people irrespective of rural and urban sectors in both the recently bifurcated states of Telangana and Andhra Pradesh. JEL Codes: I 32, D 63, P 25


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