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Full-Text Articles in Life Sciences

Beethoven: Patriotism And Social Justice, Fathi Habashi Feb 2010

Beethoven: Patriotism And Social Justice, Fathi Habashi

Fathi Habashi

The great composer Ludwig van Beethoven was not only an exceptional musician but also a man of great ideals who expressed social justice in his music


Functional Generalized Linear Models With Images As Predictors, Philip T. Reiss, R. Todd Ogden Feb 2010

Functional Generalized Linear Models With Images As Predictors, Philip T. Reiss, R. Todd Ogden

Philip T. Reiss

Functional principal component regression (FPCR) is a promising new method for regressing scalar outcomes on functional predictors. In this paper we present a theoretical justification for the use of principal components in functional regression. FPCR is then extended in two directions: from linear to the generalized linear modeling, and from univariate signal predictors to high-resolution image predictors. We show how to implement the method efficiently by adapting generalized additive model technology to the functional regression context. A technique is proposed for estimating simultaneous confidence bands for the coefficient function; in the neuroimaging setting, this yields a novel means to identify …


Preliminary Global Assessment Of Terrestrial Biodiversity Consequences Of Sea-Level Rise Mediated By Climate Change, Shaily Menon, Jorge Soberon, Xingong Li, A. Townsend Peterson Feb 2010

Preliminary Global Assessment Of Terrestrial Biodiversity Consequences Of Sea-Level Rise Mediated By Climate Change, Shaily Menon, Jorge Soberon, Xingong Li, A. Townsend Peterson

Shaily Menon

Considerable attention has focused on the climatic effects of global climate change on biodiversity, but few analyses and no broad assessments have evaluated effects of sea-level rise on biodiversity. Taking advantage of new maps of marine intrusion under scenarios of 1 and 6 m sea-level rise, we calculated areal losses for all terrestrial ecoregions globally, with areal losses for particular ecoregions ranging from nil to complete. Marine intrusion is a global phenomenon, but its effects are most prominent in Southeast Asia and nearby islands, eastern North America, northeastern South America, and western Alaska. Making assumptions regarding faunal responses to reduced …


Surviving Mass Extinction By Bridging The Benthic/Planktic Divide, Kate Darling, Ellen Thomas, Simone Kasemann, Heidi Seears, Christopher Smart, Christopher Wade Jan 2010

Surviving Mass Extinction By Bridging The Benthic/Planktic Divide, Kate Darling, Ellen Thomas, Simone Kasemann, Heidi Seears, Christopher Smart, Christopher Wade

Ellen Thomas

Evolution of planktic organisms from benthic ancestors is commonly thought to represent unidirectional expansion into new ecological domains, possibly only once per clade. For foraminifera, this evolutionary expansion occurred in the Early–Middle Jurassic, and all living and extinct planktic foraminifera have been placed within 1 clade, the Suborder Globigerinina. The subsequent radiation of planktic foraminifera in the Jurassic and Cretaceous resulted in highly diverse assemblages, which suffered mass extinction at the end of the Cretaceous, leaving an impoverished assemblage dominated by microperforate triserial and biserial forms. The few survivor species radiated to form diverse assemblages once again in the Cenozoic. …


Photosynthesis In Silico: A Multimedia Cd-Rom Combining Animations, Simulations And Self-Paced Modules For Photosynthesis Education At All Tertiary Levels, Sharon A. Robinson, W. A. Russell, G. M.A. Netherwood Jan 2010

Photosynthesis In Silico: A Multimedia Cd-Rom Combining Animations, Simulations And Self-Paced Modules For Photosynthesis Education At All Tertiary Levels, Sharon A. Robinson, W. A. Russell, G. M.A. Netherwood

Sharon Robinson

Photosynthesis is a vital component of any undergraduate biology course. Despite its central importance in providing biochemical energy, fixed carbon and oxygen for all life on Earth, it remains an area which students find uninteresting and difficult to comprehend. This difficulty is compounded by problems with laboratory equipment for practical classes, which tends to be either expensive and complex, or simple and unreliable, making it extremely difficult to provide effective, hands-on teaching of photosynthesis to the large class sizes in undergraduate biology courses. A set of interactive, multimedia modules have been combined on a CD-ROM, which provides a new approach …


Ans Binding Reveals Common Features Of Cytotoxic Amyloid Species, Benedetta Bolognesi, Janet Kumita, Teresa Barros, Elin Esbjorner, Leila Luheshi, Damian Crowther, Mark Wilson, Christopher Dobson, Giorgio Favrin, Justin Yerbury Dec 2009

Ans Binding Reveals Common Features Of Cytotoxic Amyloid Species, Benedetta Bolognesi, Janet Kumita, Teresa Barros, Elin Esbjorner, Leila Luheshi, Damian Crowther, Mark Wilson, Christopher Dobson, Giorgio Favrin, Justin Yerbury

Mark R Wilson

Oligomeric assemblies formed from a variety of disease-associated peptides and proteins have been strongly associated with toxicity in many neurodegenerative conditions, such as Alzheimer's disease. The precise nature of the toxic agents, however, remains still to be established. We show that prefibrillar aggregates of E22G (arctic) variant of the A beta(1-42) peptide bind strongly to 1-anilinonaphthalene 8-sulfonate and that changes in this property correlate significantly with changes in its cytotoxicity. Moreover, we show that this phenomenon is common to other amyloid systems, such as wild-type A beta(1-42), the 159T variant of human lysozyme and an SH3 domain. These findings are …


Cortical Underconnectivity Coupled With Preserved Visuospatial Cognition In Autism: Evidence From An Fmri Study Of An Embedded Figures Task, Saudamini Damarla, Timothy A. Keller, Rajesh K. Kana, Vladimir L. Cherkassky, Diane L. Williams, Nancy J. Minshew, Marcel Adam Just Dec 2009

Cortical Underconnectivity Coupled With Preserved Visuospatial Cognition In Autism: Evidence From An Fmri Study Of An Embedded Figures Task, Saudamini Damarla, Timothy A. Keller, Rajesh K. Kana, Vladimir L. Cherkassky, Diane L. Williams, Nancy J. Minshew, Marcel Adam Just

Marcel Adam Just

No abstract provided.


Biomechanical Analysis Of Gait Adaptation In The Nematode Caenorhabditis Elegans, Christopher Fang-Yen, M Wyart, J Xie, R Kawai, S Chen, T Kodger, Q Wen, A D T Samuel Dec 2009

Biomechanical Analysis Of Gait Adaptation In The Nematode Caenorhabditis Elegans, Christopher Fang-Yen, M Wyart, J Xie, R Kawai, S Chen, T Kodger, Q Wen, A D T Samuel

Christopher Fang-Yen

No abstract provided.


Knoor: Knowledge Repository Open Network., S M. Shafi, Nadim Akhtar Khan, Rosy Jan Dec 2009

Knoor: Knowledge Repository Open Network., S M. Shafi, Nadim Akhtar Khan, Rosy Jan

NADIM AKHTAR KHAN

The paper discusses KNoor (Knowledge Repository Open Network) which aims at harvesting and aggregating the scholarly products emanating from research and scientific institutions of Jammu & Kashmir. The paper highlights genesis, significance, cooperation and various modules of access etc with screen shots as a unique cooperative, multilingual repository of research papers, ETDs and conference proceedings of three premier institutes of valley (University of Kashmir, Sher-e-Kashmir Institute of Medical sciences, Sher-e-Kashmir University of Agricultural Sciences) in the first phase. It also discusses challenges and lessons learnt in the process with a view to help other institutions to advance the mission of …


Semiparametric Analysis Of Recurrent Events: Artificial Censoring, Truncation, Pairwise Estimation And Inference, Debashis Ghosh Dec 2009

Semiparametric Analysis Of Recurrent Events: Artificial Censoring, Truncation, Pairwise Estimation And Inference, Debashis Ghosh

Debashis Ghosh

The analysis of recurrent failure time data from longitudinal studies can be complicated by the presence of dependent censoring. There has been a substantive literature that has developed based on an artificial censoring device. We explore in this article the connection between this class of methods with truncated data structures. In addition, a new procedure is developed for estimation and inference in a joint model for recurrent events and dependent censoring. Estimation proceeds using a mixed U-statistic based estimating function approach. New resampling-based methods for variance estimation and model checking are also described. The methods are illustrated by application to …


A Neurosemantic Theory Of Concrete Noun Representation Based On The Underlying Brain Codes, Marcel Adam Just, Vladimir L. Cherkassky, Sandesh Aryal, Tom M. Mitchell Dec 2009

A Neurosemantic Theory Of Concrete Noun Representation Based On The Underlying Brain Codes, Marcel Adam Just, Vladimir L. Cherkassky, Sandesh Aryal, Tom M. Mitchell

Marcel Adam Just

No abstract provided.


Mining And Civilization, An Illustrated History, Fathi Habashi Dec 2009

Mining And Civilization, An Illustrated History, Fathi Habashi

Fathi Habashi

Mining and Civilization has been conceived to compliment the author's two books History of Metallurgy and Readings in Historical Metallurgy and to fill a gap in the literature. It is difficult to study the history of metallurgy without studying the history of mining at the same time. Each time the author visits ancient ruins or examines an ancient stone statue he recalls the work of miners who brought the material from a quarry so that the sculptor can create a work of art. History of mining, quarrying, and stone carving is history of civilization.