378 research outputs found
Crystal structure of 2,4-bis(2-chlorophenyl)-7-tert-pentyl-3-azabicyclo[3.3.1]nonan-9-one
No full textThe title compound, C25H29Cl2NO, which is a chloro analog of 2,4-bis(2-bromophenyl)-7-(tert-pentyl)-3-azabicyclo[3.3.1]nonan-9-one [Park, Ramkumar & Parthiban (2012). Acta Cryst. E68, o2946], exists in a twin-chair conformation with an equatorial orientation of the 2-chlorophenyl groups. The tert-pentyl group on the cyclohexanone adopts an exocyclic equatorial position and is disordered between two orientations in a ratio 0.520 (8):0.480 (8). The crystal packing shows no directional contacts beyond van der Waals contacts
Politics of the temporary: migrant life in urban Malaysia
No full textIn this project, I look at an aspect of contemporary migration that has been largely sidelined and marginalized in mainstream debates, policy circles and research work – what happens to ‘host societies’ in the developing South that experience a rapid increase in numbers and diversity of urban populations owing to temporary migration. What are the implications of ‘temporariness’ on people’s everyday lives, practices, experiences, social environments and the urban spaces they inhabit? How does the presence and work of diverse groups of ‘temporary migrants’ alter and re-shape social, cultural and political dynamics of societies that have already been experiencing massive transformations and developments? What new forms, new practices, new networks, new hierarchies, new inequalities, and new strategies emerge in these contexts that might provide important knowledge from a transnational sociological perspective and critical studies standpoint? In order to address these broad questions, I looked at the experience of temporary labor migration in Malaysia, following a period of field research in the country. My concern that the agency of migrants is increasingly being looked at almost exclusively through an economistic, top-down lens dominated by development has prompted me to seek out the alternative experiences, conditions and practices that the Migration Development Nexus obscures and renders invisible. I sought to do this by looking at how 'temporariness' appears from below - from the perspectives of migrants, non-citizens and other inhabitants of an actual urban center in a fast-developing country of the Global South.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2017-12-01The student, Parthiban Muniandy, accepted the attached license on 2015-10-06 at 09:12.The student, Parthiban Muniandy, submitted this Dissertation for approval on 2015-10-06 at 09:18.This Dissertation was approved for publication on 2015-10-07 at 16:08.DSpace SAF Submission Ingestion Package generated from Vireo submission #8708 on 2016-03-08 at 11:05:08Made available in DSpace on 2016-03-08T17:21:44Z (GMT). No. of bitstreams: 2
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Previous issue date: 2015-10-07Embargo set by: Seth Robbins for item 91487
Lift date: 2018-03-08T17:22:13Z
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A geo-spatial approach to perceive the groundwater regime of hard rock terrain- a case study from Morappur area, Dharmapuri district, South India
No full textThe goal of the present study is to identify the groundwater regime of Morappur area at Dharmapuri district, India. The study area covers an area of 410 sqkm. The area belongs to a hard rock terrain where the primary porosity is feeble and the secondary porosity offered by fracture, joints and shear zones etc, contributes to the groundwater regime. The availability of surface water resources is sparse and hence the groundwater repositories are intensely utilized. In the current study area, the availability of groundwater is limited due to scanty rainfall and poor recharge. The entire study area underlain by hard crystalline rocks of Archaean age, Charnokite and Hornblende epidote gneiss are the main rock types encountered in the area. The over exploitation of these resources more than the adequate recharge has resulted to decrease in the groundwater level. In this context, it is very much important to identify and understand the groundwater regime of this area for the better groundwater monitoring and conservation of this precious resource. Remote Sensing and GIS are playing a vital role in the advancement of hydro-geological studies. The use of conventional methods alone has its own limitations in comprehending the groundwater regime of the area. The integrated study using remote sensing, field studies together with GIS has helped to understand the role of structural, lithological and geomorphic units in controlling the groundwater occurrence and movement in the present study area. Various thematic maps were prepared from the satellite images and they were integrated and incorporated in a GIS platform along with collateral information to study the groundwater regime of Morappur area. The outcome of this study clearly shows the importance of the geospatial studies in identifying the role of satellite imageries and geospatial techniques to understand the groundwater regime of a hard rock terrain
2,4-Bis(4-ethoxyphenyl)-7-methyl-3-azabicyclo[3.3.1]nonan-9-one
No full textThe molecule of the title compound, C25H31NO3, exists in a twin-chair conformation with an equatorial orientation of the 4-ethoxyphenyl groups, as observed for its ortho isomer [Parthiban, Ramkumar, Park & Jeong (2011b), Acta Cryst. E67, o1475–o1476]. The methyl and 4-ethoxyphenyl groups are also equatorially oriented on the bicycle, as in the ortho analogue. In particular, although the cyclohexanone ring deviates from an ideal chair, the piperidone ring is closer to an ideal chair, whereas in the ortho isomer both rings are significantly puckered and deviate from ideal chairs. The 4-ethoxyphenyl groups on both sides of the secondary amine group are oriented at an angle of 26.11 (3)° with respect to each other, but the 2-ethoxyphenyl groups in the ortho isomer are oriented by less than half this [12.41 (4)°]. In contrast to the absence of any significant interactions in the crystal packing of the ortho isomer, the title compound features N—H...O interactions, linking the molecules along the b axis
Thermoelectrically Pumped Light-Emitting Diodes Operating above Unity Efficiency
No full textA heated semiconductor light-emitting diode at low forward bias voltage V<kBT/q is shown to use electrical work to pump heat from the lattice to the photon field. Here the rates of both radiative and nonradiative recombination have contributions at linear order in V. As a result the device’s wall-plug (i.e., power conversion) efficiency is inversely proportional to its output power and diverges as V approaches zero. Experiments directly confirm for the first time that this behavior continues beyond the conventional limit of unity electrical-to-optical power conversion efficiency.American Society for Engineering Education. National Defense Science and Engineering Graduate Fellowshi
Reciprocity and R&D Search: Applying the Behavioral Theory of The Firm to a Communitarian Context
No full textChromatic number of graphs with special distance sets, I
No full textGiven a subset D of positive integers, an integer distance graph is a graph G(Z, D) with the set Z of integers as vertex set and with an edge joining two vertices u and v if and only if |u−v| ∈ D. In this paper we consider the problem of determining the chromatic number of certain integer distance graphs G(Z, D)whose distance set D is either 1) a set of (n + 1) positive integers for which the nth power of the last is the sum of the nth powers of the previous terms, or 2) a set of pythagorean quadruples, or 3) a set of pythagorean n-tuples, or 4) a set of square distances, or 5) a set of abundant numbers or deficient numbers or carmichael numbers, or 6) a set of polytopic numbers, or 7) a set of happy numbers or lucky numbers, or 8) a set of Lucas numbers, or 9) a set of Ulam numbers, or 10) a set of weird numbers. Besides finding the chromatic number of a few specific distance graphs we also give useful upper and lower bounds for general cases. Further, we raise some open problems.This research is carried out with the financial grant and support of National Board for Higher Mathematics, Government of India under the grant sanction no. 2/48(10)/2005/R&D-II/11192/dated 26,Nov,2010. The author also thanks A. Parthiban his Ph.D. student for useful discussions
Do shareholders or stakeholders appropriate the rents from corporate diversification?: The influence of ownership structure
No full textThe effective use of virtualization for selection of data centers in a cloud computing environment
No full textDermatomycoses In Diabetics - A Clinical Study
No full textTwo hundred diabetics including 153 non- insulin dependent diabetes mellitus and 47 insulin dependent diabetes mellitus patients, were screened for mycoses. Candidiasis was the commonest mycoses, followed by dermatophtoses and pityriasis versicolor. The fasting blood glucose level was observed to be higher in candidialsis compared to other mycoses
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