1,677 research outputs found
Automating Author Gender Identification from Blogs
No full textThe rapid growth of public blogging on the Internet has opened up a vast trove of information that can be text mined for potential insights. This study explores the potential of automating blog author gender based on differences in lexical expressions. The results of this study were mixed, and further refinement is needed.Master of Science in Information Scienc
Collective dynamics differentiates functional divergence in protein evolution.
No full textProtein evolution is most commonly studied by analyzing related protein sequences and generating ancestral sequences through Bayesian and Maximum Likelihood methods, and/or by resurrecting ancestral proteins in the lab and performing ligand binding studies to determine function. Structural and dynamic evolution have largely been left out of molecular evolution studies. Here we incorporate both structure and dynamics to elucidate the molecular principles behind the divergence in the evolutionary path of the steroid receptor proteins. We determine the likely structure of three evolutionarily diverged ancestral steroid receptor proteins using the Zipping and Assembly Method with FRODA (ZAMF). Our predictions are within ~2.7 Å all-atom RMSD of the respective crystal structures of the ancestral steroid receptors. Beyond static structure prediction, a particular feature of ZAMF is that it generates protein dynamics information. We investigate the differences in conformational dynamics of diverged proteins by obtaining the most collective motion through essential dynamics. Strikingly, our analysis shows that evolutionarily diverged proteins of the same family do not share the same dynamic subspace, while those sharing the same function are simultaneously clustered together and distant from those, that have functionally diverged. Dynamic analysis also enables those mutations that most affect dynamics to be identified. It correctly predicts all mutations (functional and permissive) necessary to evolve new function and ~60% of permissive mutations necessary to recover ancestral function
A citizen's guide to employment, inflation, income, and the Oregon economy
No full textR. Bruce Rettig, David R. Darr, Ludwig M. Eisgruber, John P. Farrell, A. Gene Nelson, Gary W. Sorenson.This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references.Mode of access: Internet from the Oregon Government Publications Collection.Text in English
Rewriting history : postmodern and postcolonial negotiations in the fiction of J.G. Farrell, Timothy Mo, Kazuo Ishiguro and Salman Rushdie
No full textThis thesis is a study of the rewriting of history in the work of four novelists: J. G. Farrell, Timothy Mo, Kazuo Ishiguro and Salman Rushdie. I argue that their work occupies a particular position that is both within contemporary British fiction, yet at one remove from it.
Their work is situated within the context of critiques of history that are the source of a conflict between postmodernism and postcolonialism. I suggest that each writer engages with postmodemist aesthetics often in an attempt to produce critical histones that bear witness to the voices of those hitherto silenced in conventional historiography. However, these novelists remain anxious as to the potential consequences of mobilising postmodernist models of history, particularly as to the problems this creates concerning historical reference. The thesis aims to
identify the range of related attitudes to postmodernist critiques of history at this particular juncture of contemporary fiction in English.
I approach the specific position of the novelists under study through Homi Bhabha's work on the confluence of the postmodern and the postcolonial, focusing in particular on his suggestion that the postmodem refutation of Western epistemology enables a postcolonial space where a new range of histories emerge. Because each writer works between at least two cultures, and primarily within Britain, they negotiate from within received epistemology in an attempt to locate a space at its boundaries where conventional forms of knowledge no longer have efficacy. However, in contrast to Bhabha, these writers struggle to reach this space and remain sceptical as to the usefulness of postmodernism in making available new forms of
historiography. Ultimately, their work enables a critique of current ways of theorising the relationship between the postmodem and the postcolonial in literary studies
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Impact of Variable Atmospheric and Oceanic Form Drag on Simulations of Arctic Sea Ice
No full textOver Arctic sea ice, pressure ridges and floe and melt pond edges all introduce discrete obstructions to the flow of air or water past the ice and are a source of form drag. In current climate models form drag is only accounted for by tuning the air–ice and ice–ocean drag coefficients, that is, by effectively altering the roughness length in a surface drag parameterization. The existing approach of the skin drag parameter tuning is poorly constrained by observations and fails to describe correctly the physics associated with the air–ice and ocean–ice drag. Here, the authors combine recent theoretical developments to deduce the total neutral form drag coefficients from properties of the ice cover such as ice concentration, vertical extent and area of the ridges, freeboard and floe draft, and the size of floes and melt ponds. The drag coefficients are incorporated into the Los Alamos Sea Ice Model (CICE) and show the influence of the new drag parameterization on the motion and state of the ice cover, with the most noticeable being a depletion of sea ice over the west boundary of the Arctic Ocean and over the Beaufort Sea. The new parameterization allows the drag coefficients to be coupled to the sea ice state and therefore to evolve spatially and temporally. It is found that the range of values predicted for the drag coefficients agree with the range of values measured in several regions of the Arctic. Finally, the implications of the new form drag formulation for the spinup or spindown of the Arctic Ocean are discussed
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United States Geological Survey Reports
No full textFrom introduction: This report is based on preliminary surface mapping in the summer of 1952 and on subsurface exploration with a bulldozer powerauger unit in the summers of 1953 and 1954. In 1952 F. F. Barnes was assisted by Alfred Oestreich, geologist, and Lewis Ladwig and Richard Pack, field assistants. From July 2 to August 31, 1953, F. F. Barnes and Daniel Sokol were assisted by W.T. Ashlock and R. E. Rowland, field assistants, and by a bulldozer operator-mechanic. From June 23 to July 27, 1954, Barnes and Sokol were assisted by A. E. Burford and W. S. Hopkins, geologists, and an operator-mechanic
How can allocative inefficiency reveal risk preference? An empirical investigation on French wheat farms
No full textWe focus on a simple framework on wheat producer behaviour in a context of price output uncertainty. More precisely, we establish a relationship between ex post output price level and allocative inefficiency that allows to characterize farmers’ risk preferences. Given this analysis, the connection between risk aversion and other socioeconomic variables (such as degree of output specialisation, total asset, debts, farmer’s age…) can furthermore empirically be explored. This relationship is empirically tested on an unbalanced panel including about 650 wheat producers located in the French Department of Meuse over 1992- 2003.Producer behaviour, allocative inefficiency, risk aversion, Crop Production/Industries, Risk and Uncertainty,
Age and growth estimates for the starry smoothhound (Mustelus asterias) in the Northeast Atlantic Ocean
No full textThis is a pre-copy-editing, author-produced PDF of an article accepted for publication in ICES Journal of Marine Science following peer review. The definitive publisher-authenticated version Farrell, E. D., Mariani, S., and Clarke, M. W. 2010. Age and growth estimates for the starry smoothhound (Mustelus asterias) in the Northeast Atlantic Ocean. – ICES Journal of Marine Science, 67: 931–939 is available online at: http://icesjms.oxfordjournals.org/content/67/5/931peer-reviewedThis study is the first to estimate age, growth and longevity of M. asterias based on interpretation of band pairs in sectioned vertebrae. Age and growth of 106 male and 114 female starry smooth-hound sharks (Mustelus asterias) were estimated by counting band pairs on unstained sectioned vertebrae. Growth curves were fitted to the length-at-age data using the von Bertalanffy and Gompertz models. The 1-parameter von Bertalanffy-L0 provided the best fit for males (L∞ = 104 cm TL, L0 = 30 cm TL and estimated K = 16 0.224) and females (L∞ = 133 cm TL, L0 = 30 cm TL and estimated K = 0.136). Longevity was estimated to be 11.8 and 20.2 years for males and females respectively. The length weight relationship is also presented for 304 male and 424 female M. asterias. The von Bertalanffy model was fitted to weight-at-age data. These estimates can form the basis of future work on the assessment and management of this species
Ecocritical reading of Vladan Desnica’s novel Pronalazak Athanatika [The Discovery Of Athanatik]
No full textAutor podejmuje się lektury krótkiej niedokończonej powieści Vladana Desnicy Pronalazak Athanatika z niszowej perspektywy ekokrytycznej. Artykuł składa się z trzech części tematycznych: ekokrytycznego ujęcia cyklu tematycznego: życie – śmierć – nieśmiertelność w porównaniu i nawiązaniu do dzieła Homo deus Yuvala Noaha Harariego. Następnie autor ekokrytycznie analizuje deszcz poprzez pryzmat koncepcji Susan Farrell. W ostatniej części analizuje utwór Pronalazak Athanatika w kontekście dystopijnych współczesnych chorwackich powieści ekologicznych/dotyczących środowiska: powieści Planet Friedman Josipa Mlakicia oraz książki Mjesečev meridijan Edo Popovicia, w odniesieniu do ekokrytycznych tekstów Louise Squire. Autor konkluduje, że Desnica w swoim dziele Pronalazak Athanatika – które zalicza do fikcji spekulatywnej – odwoływał się do aktualnych rozważań naukowych (Harari) i dzieł literackich (Mlakić, Popović). Ostrzegał, że ekologia i czynniki ekologiczne – nieśmiertelność i wzrost populacji, brak żywności, a w ostateczności niszczenie planety – mogą mieć destrukcyjny wpływ na zmiany społeczne, dystrybucję władzy i kształtowanie przyszłości. Desnica stał się dzięki temu prekursorem powieści ekologicznych.The author gives an ecocritical reading of a short, unfinished novel by Vladan Desnica Pronalazak Athanatika (The Discovery of Athanatik). The paper comprises three thematic units: an ecocritical approach to a thematic cycle (life – death – immortality) in the novel, compared with Homo Deus by Yuval Noah Harari; an ecocritical analysis of rain as seen from the point of view of Susan Farrell’s ideas; and an analysis of Pronalazak Athanatika in the context of two dystopian ecological/environmental novels in contemporary Croatian literature, Planet Friedman by Josip Mlakić and Mjesečev meridijan (The Moon Meridian) by Edo Popović, with a comparison to ecocritical readings of Louise Squire. The author concludes that Pronalazak Athanatika – defined in genre terms as speculative fiction – makes Desnica a predecessor to current scientific considerations (Harari) and literary works (Mlakić, Popović) in warning that ecology and ecological factors – immortality and population increases, a lack of food, and ultimately the destruction of the planet – may have destructive effects on social change, the division of power, and the shape of the future
Wisconsin’s W-2 Program: Welfare as We Might Come to Know It
No full textWisconsin’s welfare reform program, Wisconsin Works (W-2), is among the most ambitious and comprehensive state reforms supported by the U.S. government’s Temporary Assistance for Needy Families (TANF) block grant. This paper describes the W-2 program in Wisconsin, compares distinctive features of the program to TANF programs in selected other states, discusses how Wisconsin came to offer such a program, and describes early trends in W-2 program implementation. The paper also makes suggestions for evaluating distinctive features of W-2.
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