263 research outputs found
Blazin – A TAC Classic Agent Solutions and Strategies
TAC Agent Trading Game – Amit Kothari, Brian Ferguson 1 Introduction........................................................................................................................................... 3 1.1 Trading Agent Competition.........................................................................................................
Information and self-selection in the PIPE market
Thesis (Ph. D.)--Massachusetts Institute of Technology, Sloan School of Management, 2007.Includes bibliographical references (leaves 44-49).PIPEs (Private Investments in Public Equity) are unique in that they are negotiated privately between sophisticated investors and the public firm. As a result, the issue price deviates from the firm's stock price, often resulting in a substantial PIPE discount. However, only a limited set of firms issues equity at such a discount. PIPE issuers tend to be low quality, less transparent firms that cannot raise capital through traditional sources. As indicators of this quality, I examine the firm's accruals and audit quality in the year of its PIPE issuance. I find that the PIPE discount is more strongly associated with audit quality, and that firms with low quality auditors are issued at a 5% discount relative to comparable firms with high quality auditors. Much of this discount is due to self-selection, suggesting that higher quality PIPE issuers select high quality auditors.by Amit Koshal.Ph.D
Towards Post Development in India. Lessons of Community Resilience in Times of Crises
Author: Ashish Kothari is an Indian environmentalist working on development – environment interface, biodiversity policy, and alternatives. Environment and wildlife have been his passions since high school in Delhi, when (in 1978-79) he helped found Kalpavriksh, a non-profit organisation in India which deals with environmental and development issues. Since then, he has been associated with peoples’ movements like Narmada Bachao Andolan and Beej Bachao Andolan. He is also involved in coordinateing national and global networks like Vikalp Sangam and Global Tapestry of Alternatives
Localization and instability in sheared granular materials: role of friction and vibration
Shear banding and stick-slip instabilities have been long observed in sheared granular materials. Yet, their microscopic underpinnings, interdependencies and variability under different loading conditions have not been fully explored. Here, we use a non-equilibrium thermodynamics model, the Shear Transformation Zone theory, to investigate the dynamics of strain localization and its connection to stability of sliding in sheared, dry, granular materials. We consider frictional and frictionless grains as well as presence and absence of acoustic vibrations. Our results suggest that at low and intermediate strain rates, persistent shear bands develop only in the absence of vibrations. Vibrations tend to fluidize the granular network and de-localize slip at these rates. Stick-slip is only observed for frictional grains and it is confined to the shear band. At high strain rates, stick-slip disappears and the different systems exhibit similar stress-slip response. Changing the vibration intensity, duration or time of application alters the system response and may cause long-lasting rheological changes. We analyse these observations in terms of possible transitions between rate strengthening and rate weakening response facilitated by a competition between shear induced dilation and vibration induced compaction. We discuss the implications of our results on dynamic triggering, quiescence and strength evolution in gouge filled fault zones.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2019-05-01The student, Konik Kothari, accepted the attached license on 2017-04-25 at 17:58.The student, Konik Kothari, submitted this Thesis for approval on 2017-04-25 at 18:10.This Thesis was approved for publication on 2017-04-26 at 18:28.DSpace SAF Submission Ingestion Package generated from Vireo submission #11071 on 2017-08-10 at 15:07:07Made available in DSpace on 2017-08-10T20:33:26Z (GMT). No. of bitstreams: 3
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Previous issue date: 2017-04-26Embargo set by: Colleen Fallaw for item 102842
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Comparative genomic analyses of the cyanobacterium, Lyngbya aestuarii BL J, a powerful hydrogen producer.
The filamentous, non-heterocystous cyanobacterium Lyngbya aestuarii is an important contributor to marine intertidal microbial mats system worldwide. The recent isolate L. aestuarii BL J, is an unusually powerful hydrogen producer. Here we report a morphological, ultrastructural and genomic characterization of this strain to set the basis for future systems studies and applications of this organism. The filaments contain circa 17 μm wide trichomes, composed of stacked disk-like short cells (2 μm long), encased in a prominent, laminated exopolysaccharide sheath. Cellular division occurs by transversal centripetal growth of cross-walls, where several rounds of division proceed simultaneously. Filament division occurs by cell self-immolation of one or groups of cells (necridial cells) at the breakage point. Short, sheath-less, motile filaments (hormogonia) are also formed. Morphologically and phylogenetically L. aestuarii belongs to a clade of important cyanobacteria that include members of the marine Trichodesmiun and Hydrocoleum genera, as well as terrestrial Microcoleus vaginatus strains, and alkalyphilic strains of Arthrospira. A draft genome of strain BL J was compared to those of other cyanobacteria in order to ascertain some of its ecological constraints and biotechnological potential. The genome had an average GC content of 41.1 %. Of the 6.87 Mb sequenced, 6.44 Mb was present as large contigs (>10,000 bp). It contained 6515 putative protein-encoding genes, of which, 43 % encode proteins of known functional role, 26 % corresponded to proteins with domain or family assignments, 19.6 % encode conserved hypothetical proteins, and 11.3 % encode apparently unique hypothetical proteins. The strain’s genome reveals its adaptations to a life of exposure to intense solar radiation and desiccation. It likely employs the storage compounds, glycogen and cyanophycin but no polyhydroxyalkanoates, and can produce the osmolytes, trehalose and glycine betaine. According to
Effect of growth parameters on the optical properties of ZnO nanostructures grown by simple solution methods
Tubular duplication of colon and terminal ileum in a female child, case report, review of literature and proposal of a new classification
AbstractA case of a four and a half years old girl with total colon and terminal ileal duplication with a normally situated anus, vestibular fistula, double bladder and urethra with a unique feature of loop duplication of terminal ileum and part of the colon is reported. A proposal is made for a new simplified classification
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