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1

Stephen Jay Gould on Intelligence  

Microsoft Academic Search

In The Mismeasure of Man (1981) Stephen Jay Gould provides a typicallyreadable history of one of our most vexatious intellectual enterprises: the scientific studyof intelligence. Gould is successful, as always, in rendering the relevant scientific debatesaccessible to general readers. What Gould does less well is to carry through his attack onprior attempts to understand natural intelligence scientifically: attempting to musterall

Kevin B. Korb

1993-01-01

2

Un portrait de Stephen Jay Gould  

Microsoft Academic Search

A portrait of Stephen Jay Gould. From 1982 to 2002, as Stephen Jay Gould's translator and friend, I came to greatly value his personal qualities as a man, and admire him as a fine scientist and theorist. To cite this article: M. Blanc, C. R. Palevol 2 (2003).

Marcel Blanc

2003-01-01

3

Stephen Jay Gould on intelligence.  

PubMed

In The Mismeasure of Man (1981) Stephen Jay Gould provides a typically readable history of one of our most vexatious intellectual enterprises: the scientific study of intelligence. Gould is successful, as always, in rendering the relevant scientific debates accessible to general readers. What Gould does less well is to carry through his attack on prior attempts to understand natural intelligence scientifically: attempting to muster all possible arguments against such science, he conjures up a variety of impossible arguments as well. One such argument urges that Gould's predecessors are not to be taken seriously because they are racists and have let their racism influence their scientific practice. Gould has no difficulty in demonstrating the influence of racism; where he goes astray is in his dismissal of such prior work as simply unscientific because the racist conclusions preceded the collection of data. Advancing hypotheses prior to experimentation is how all of science proceeds, and is no mark of inferior work. And no science is immune to influences--racist or otherwise--from the culture in which it is embedded, as Gould elsewhere readily acknowledges. Another failed argument claims that all of the factor analysts studying intelligence have committed the intellectual sin of reifying the factors uncovered in IQ tests--concluding that the factors are real solely on the basis of how a factor analysis summarizes IQ data. Gould concludes that factor analysis is worthless for the study of intelligence. However: (1) contrary to what Gould suggests, the factor analysts themselves warned against concluding that the factors "discovered" are physiologically real merely on the basis of a factor analysis; and (2) factor analysis nevertheless remains a strong candidate technique for developing causal models worth investigating subsequently by other means. PMID:7924200

Korb, K B

1994-08-01

4

Stephen Jay Gould on Intelligence.  

ERIC Educational Resources Information Center

Critiques ideas expressed by Gould in "The Mismeasure of Man." Agrees with Gould that many scientists who studied human intelligence were racist, but disagrees that their work must therefore necessarily be dismissed. Disputes Gould's claim that factor analysts who study human intelligence have reified their factors and that factor analysis is…

Korb, Kevin B.

1994-01-01

5

Stephen Jay Gould as a political theorist.  

PubMed

Before his death in 2002, paleontologist Stephen Jay Gould elaborated a large and inclusive theory of life's change. In this essay I concentrate on the aspects of Gould's vast theory that have the most direct political relevance. I briefly discuss his views on the philosophy of science. I examine the way he combined political values and methodology in a seamless, critical analysis of intelligence-testing and sociobiology. I concentrate most extensively on the impact his "punctuated equilibria" concept has made on contemporary political analysis, and I demonstrate that in their appropriation of this concept political scientists have violated the rules that Gould himself articulated for its use. In closing, I consider the possibility that a comprehensive theory of life, a theory that must include political values, might approach traditional questions of political thought more satisfyingly than has conventional philosophy. PMID:17722990

Prindle, David

2006-01-01

6

Stephen Jay Gould and the Rhetoric of Evolutionary Theory  

Microsoft Academic Search

This paper analyzes four popular essays on punctuated equilibrium by the late paleobiologist Stephen Jay Gould, who coauthored the evolutionary theory with Niles Eldredge in 1972. It begins with a survey of Gould's disparate reception among scientific amateurs and professionals. Main concerns include the role of accommodated science in the public perception of truth and whether Gould was able to

Heidi Scott

2007-01-01

7

Historical and Philosophical Perspective The Mismeasure of Science: Stephen Jay Gould versus  

E-print Network

Historical and Philosophical Perspective The Mismeasure of Science: Stephen Jay Gould versus Samuel University, New York, New York, United States of America Stephen Jay Gould, the prominent evolu- tionary shield results from cultural biases. A Debate across a Century Stephen Jay Gould (1941­2002) and Samuel

Anderson, Douglas R.

8

Species Selection on Variability Author(s): Elisabeth A. Lloyd and Stephen Jay Gould  

E-print Network

Species Selection on Variability Author(s): Elisabeth A. Lloyd and Stephen Jay Gould Source;andtMuseumofComparativeZoology,HarvardUniversity,Cambridge,MA02138 ContributedbyStephenJayGould/emergentcharacters/aggregatecharacters/adaptation) ELISABETH A. LLOYD* AND STEPHEN JAY GOULDt *DepartmentofPhilosophy,UniversityofCalifornia,Berkeley,CA 94720

Lloyd, Elisabeth

9

Science and the Humanities: Stephen Jay Gould's Quest to Join the High Table  

NASA Astrophysics Data System (ADS)

Stephen Jay Gould was a scientist, a paleobiologist, who was also a professional-level historian of science. This essay explores Gould's work, showing how he used the history of science to further his agenda as a working scientist.

Ruse, Michael

2013-09-01

10

Joltin' Joe and the Pursuit of Excellence: An Interview with Stephen Jay Gould.  

ERIC Educational Resources Information Center

Award-winning science author and Harvard professor Stephen Jay Gould shares some views on education and contemporary American culture. Gould's most enthusiastic school memory is singing in an all-city chorus. Harvard students are bright and motivated but have no shared culture, historical perspective, or foreign language proficiency. Gould favors…

Goldberg, Mark F.

1997-01-01

11

Where is the Progress? Review of Stephen Jay Gould's "Full House: The Spread of Excellence from  

E-print Network

1 Where is the Progress? Review of Stephen Jay Gould's "Full House: The Spread of Excellence from it be possible to discuss baseball and evolution together so persuasively? But Gould's aim is above all mode. Of particular importance to Gould's argument is the existence of a one-sided limitation

Rocha, Luis

12

Stephen Jay Gould, les procaryotes et leur évolution dans le contexte géologique  

Microsoft Academic Search

Stephen Jay Guld, the prokaryotes and their evolution in a geological context. Stephen Jay Gould (Full House, Harmony Books, New York, 1996) emphasised the importance of the bacterial (prokaryote) world right from the beginnings of the history of life, up to the present day and, even into the future. Moreover, he suggested that the various forms of life on the

Frances Westall

2003-01-01

13

Science and the Humanities: Stephen Jay Gould's Quest to Join the High Table  

ERIC Educational Resources Information Center

Stephen Jay Gould was a scientist, a paleobiologist, who was also a professional-level historian of science. This essay explores Gould's work, showing how he used the history of science to further his agenda as a working scientist.

Ruse, Michael

2013-01-01

14

Stephen Jay Gould as Historian of Science and Scientific Historian, Popular Scientist and Scientific Popularizer  

Microsoft Academic Search

Science historian Ronald Numbers once remarked that the two most influential historians of science of the 20th century were Thomas Kuhn and Stephen Jay Gould. All historians are deeply familiar with Kuhn's work and influence, and most know of the remarkable impact Gould has had on evolutionary theory through both his professional and popular works. But little attention has been

Michael B. Shermer

2002-01-01

15

Stephen Jay Gould, Jack Sepkoski, and the ‘Quantitative Revolution’ in American Paleobiology  

Microsoft Academic Search

During the 1970s, a “revolution” in American paleobiology took place. It came about in part because a group of mostly young, ambitious paleontologists adapted many of the quantitative methodologies and techniques developed in fields including biology and ecology over the previous several decades to their own discipline. Stephen Jay Gould, who was then just beginning his career, joined others in

David Sepkoski

2005-01-01

16

Reflections on Stephen Jay Gould's "The Mismeasure of Man" (1981): A Retrospective Review. Book Review.  

ERIC Educational Resources Information Center

It is argued that the statements and accusations made by Stephen Jay Gould about the use of factor analysis are incorrect and unjustified and that tests properly designed for the purpose can adequately measure a "general" or "g" factor of intelligence, particularly in view of the developments in testing since "The Mismeasure of Man" was written.…

Carroll, John B.

1995-01-01

17

The History of Nature and the Nature of History: Stephen Jay Gould on Science, Philosophy, and History.  

ERIC Educational Resources Information Center

Considers Stephen Jay Gould's writings on the nature of history, specifically on the relationship between science and history. Addresses the scientific method, the foundations and procedures of historical explanation in science, history as contingency, and evolution as history. (CMK)

Blaser, Kent

1999-01-01

18

Claiming Darwin: Stephen Jay Gould in contests over evolutionary orthodoxy and public perception, 1977-2002.  

PubMed

This article analyzes the impact of the resurgence of American creationism in the early 1980s on debates within post-synthesis evolutionary biology. During this period, many evolutionists criticized Harvard biologist Stephen Jay Gould for publicizing his revisions to traditional Darwinian theory and opening evolution to criticism by creationists. Gould's theory of punctuated equilibrium was a significant source of contention in these disputes. Both he and his critics, including Richard Dawkins, claimed to be carrying the mantle of Darwinian evolution. By the end of the 1990s, the debate over which evolutionary thinkers were the rightful heirs to Darwin's evolutionary theory was also a conversation over whether Darwinism could be defended against creationists in the broader cultural context. Gould and others' claims to Darwin shaped the contours of a political, religious and scientific controversy. PMID:24457049

Sheldon, Myrna Perez

2014-03-01

19

Science, Intelligence, and Educational Policy: The Mismeasure of Frankenstein (with Apologies to Mary Shelley and Stephen Jay Gould).  

ERIC Educational Resources Information Center

Stephen Jay Gould points out in "The Mismeasure of Man" (1981), "Science, since people must do it, is a socially embedded activity. It progresses by hunch, vision, and intuition." The legacy of the traditional construct of intelligence and its measurement through intelligence quotient (IQ) tests has not been educational improvement. Its legacy in…

Zappardino, Pamela

20

Evolution’s past and future: an introduction and partial précis to Stephen Jay Gould’s The Structure of Evolutionary Theory  

Microsoft Academic Search

In The Structure of Evolutionary Theory, his last and largest book on evolution, Stephen Jay Gould conceives of the structure of evolutionary theory since Darwin as comprising three major propositions. First, natural selection is the most important direction-giving force in evolution. Second, it operates at the level of the individual organism. Third, selection can be extrapolated smoothly from its actions

Kevin Padian

2003-01-01

21

This view of science: Stephen Jay Gould as historian of science and scientific historian, popular scientist and scientific popularizer.  

PubMed

Science historian Ronald Numbers once remarked that the two most influential historians of science of the 20th century were Thomas Kuhn and Stephen Jay Gould. All historians are deeply familiar with Kuhn's work and influence, and most know of the remarkable impact Gould has had on evolutionary theory through both his professional and popular works. But little attention has been paid to the depth, scope, and importance of Gould's rôle as historian and philosopher of science, and his use of popular science exposition to reinforce old knowledge and generate new. This paper presents the results of an extensive quantitative content analysis of Gould's 22 books, 101 book reviews, 479 scientific papers, and 300 Natural History essays, in terms of their subject matter (Evolutionary Theory, History and Philosophy of Science, Natural History, Paleontology/Geology, Social Science/Commentary), and thematic dichotomies (Theory-Data, Time's Arrow-Time's Cycle, Adaptationism- Nonadaptationalism, Punctuationism-Gradualism, Contingency-Necessity). Special emphasis is placed on the interaction between the subjects and themata, how Gould has used the history of science to reinforce his evolutionary theory (and vice versa), and how his philosophy of science has influenced both his evolutionary theory and his historiography. That philosophy can best be summed up in a quotation from Charles Darwin, frequently cited by Gould: 'All observation must be for or against some view if it is to be of any service'. Gould followed Darwin's advice throughout his career, including his extensive writings on the history and philosophy of science. PMID:12503565

Shermer, Michael B

2002-08-01

22

This View of Science: Stephen Jay Gould as Historian of Science and Scientific Historian, Popular Scientist and Scientific Popularizer.  

ERIC Educational Resources Information Center

Presents the results of an extensive quantitative content analysis of Gould's 22 books, 101 book reviews, 479 scientific papers, and 300 Natural History essays, in terms of subject matter, and thematic dichotomies. Emphasizes the interaction between the subjects and themata, how Gould has used the history of science to reinforce his evolutionary…

Shermer, Michael B.

2002-01-01

23

Gould's Rcal Contribution J David Archibald  

E-print Network

sour view of how Stephen Jay Gould's work and legacy has fared at the hands of neolltologists. I agreeGould's Rcal Contribution J David Archibald Skeptic; 201 1; 16,3; General Interest Module pg. 12 FORUM Gould's Real Contribution In his review/essJY (Vol. 16, No. I), Don;lld Prothero takes a rather

Archibald, J. David

24

Un provocateur de gnie : Gould ou l'amour de l'arbre  

E-print Network

Un provocateur de génie : Gould ou l'amour de l'arbre Pierre-Henri Gouyon Stephen Jay Gould, La (collection NRF essais), 2006. Steve Gould est un personnage particulier dans le monde de la biologie de l ce qu'il a transmis reste objet de débat. Une chose est certaine : Steve Gould aimait la controverse

25

Many ways of being human, the Stephen J. Gould's legacy to Palaeo-Anthropology (2002-2012).  

PubMed

As an invertebrate palaeontologist and evolutionary theorist, Stephen J. Gould did not publish any direct experimental results in palaeo-anthropology (with the exception of Pilbeam and Gould, 1974), but he did prepare the stage for many debates within the discipline. We argue here that his scientific legacy in the anthropological fields has a clear and coherent conceptual structure. It is based on four main pillars: (1) the famed deconstruction of the "ladder of progress" as an influential metaphor in human evolution; (2) Punctuated Equilibria and their significance in human macro-evolution viewed as a directionless "bushy tree" of species; (3) the trade-offs between functional and structural factors in evolution and the notion of exaptation; (4) delayed growth, or neoteny, as an evidence in human evolution. These keystones should be considered as consequences of the enduring theoretical legacy of the eminent Harvard evolutionist: the proposal of an extended and revised Darwinism, coherently outlined in the last twenty years of his life (1982-2002) and set out in 2002 in his final work, The Structure of Evolutionary Theory. It is in the light of his "Darwinian pluralism", able to integrate in a new frame the multiplicity of explanatory patterns emerging from different evolutionary fields, that we understand Stephen J. Gould's legacy in palaeo-anthropology today, both in terms of provocative shocks to comfortable visions of human evolution and, above all, in terms of specific scientific predictions about future research. PMID:23274749

Pievani, Telmo

2012-01-01

26

Gould talking past Dawkins on the unit of selection issue.  

PubMed

My general aim is to clarify the foundational difference between Stephen Jay Gould and Richard Dawkins concerning what biological entities are the units of selection in the process of evolution by natural selection. First, I recapitulate Gould's central objection to Dawkins's view that genes are the exclusive units of selection. According to Gould, it is absurd for Dawkins to think that genes are the exclusive units of selection when, after all, genes are not the exclusive interactors: those agents directly engaged with, directly impacted by, environmental pressures. Second, I argue that Gould's objection still goes through even when we take into consideration Sterelny and Kitcher's defense of gene selectionism in their admirable paper "The Return of the Gene." Third, I propose a strategy for defending Dawkins that I believe obviates Gould's objection. Drawing upon Elisabeth Lloyd's careful taxonomy of the various understandings of the unit of selection at play in the philosophy of biology literature, my proposal involves realizing that Dawkins endorses a different understanding of the unit of selection than Gould holds him to, an understanding that does not require genes to be the exclusive interactors. PMID:23806523

Istvan, M A

2013-09-01

27

MAKING A CASE FOR LIBERAL EDUCATION IN SUPPORT OF SUSTAINABLE SYSTEMS: FROM DR. SEUSS TO STEPHEN JAY GOULD  

Microsoft Academic Search

To achieve progress toward the goals of sustainability and a healthy environment, the educational system at all levels must place an increased emphasis on integrating the liberal arts and sciences across the curriculum. A case study illustrates the debilitating effects of sector- specific thinking, which breeds complacency, irresponsiveness, and denial to the detriment of human, environmental, and community health. The

Tammie L. Fleeger

28

Recommended Zoology-Related Books Note: This is NOT an exhaustive book list.  

E-print Network

Darwin The History of Biology by Eric Nordenskiold Bully for Brontosaursus by Stephen Jay Gould Hen's Teeth and Horse's Toes: Further Reflections in Natural History by Stephen Jay Gould Walden and Other. Larson Ever Since Darwin: Reflections in Natural History by Stephen Jay Gould Stephen Jay Gould

29

The rhetorical construction of Eldredge and Gould's article on the theory of punctuated equilibria in 1972.  

PubMed

This article seeks to show how several rhetorical tools were used and, in fact, played a central role in the argumentation advanced by Niles Eldredge and Stephen Jay Gould in their 1972 seminal article on the theory of Punctuated Equilibria. It is analyzed how Eldredge and Gould proceeded through three steps that, sequentially integrated, made their argument compelling. It is shown how they made use of analogies, metaphors and other rhetorical tools. It is sustained that they began by priming the reader to distrust the current interpretation of the fossil record offered by most paleontologists and then, in a second step, they used specific visual representations in order to suggest that the competitor theory was committed to the idea of an even and slow evolution at a constant rate, an image utilized by them as straw man. Finally, it is analyzed how, in their third step, Eldredge and Gould made use of several rhetorical arguments to present their theory as new for paleontology while, at the same time, placing it well inside the frame of the modern synthesis, and how they also managed to present their theory as more promising and capable of making predictions for future researches than the competitor theory. PMID:19579708

Cachón, Vladimir; Barahona, Ana; Ayala, Francisco J

2008-01-01

30

This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research  

E-print Network

's personal copy Book Review Ever since Gould Stephen Jay Gould: Reflections on His View of Life edited By my count, Stephen Jay Gould changed the way that evolutionary biologists think three times: (i was Gould's life and death felt more strongly than among his fellow paleontologists. Stephen Jay Gould

Cunningham, Cliff

31

Pinyon Jay  

USGS Multimedia Gallery

Pinyon jays coevolved as non-migratory mutualists with pinyon pines. Jays disperse the large wingless seed of pinyon pines over long distances, which can result in relatively rapid colonization. At the same time, the jays obtain energy and nutrients from the seeds. Although closely associated with...

32

argument in an online debate2 , and an almost  

E-print Network

this the `Stephen Jay Gould Hypoth- esis' (see left). I have no desire to make men into villains (as Henry Kissinger from without, but falsely identified as lying within. "-- Stephen Jay Gould M.GOLDWATER/ALAMY Nature

Mahowald, Natalie

33

BALLOONING PARROTS AND SEMI-LUNAR GERMS  

E-print Network

at this lunacy, and I suggested that she should read a sensible evolutionary thinker like Stephen Jay Gould couldn't even figure out how one might figure it out. Certainly, my extensive Stephen Jay Gould #12

Read, Andrew

34

The Impact of German Romanticism on Biology in the Nineteenth Century  

E-print Network

the orthodox assumption, as testified to by the likes of Stephen Jay Gould, Daniel Dennett, and a host of modern scholars. See for example, Stephen Jay Gould, The Structure of Evolutionary Theory (Cambridge

Richards, Robert J.

35

2 RESONANCE November 2002 ARTICLE-IN-A-BOX  

E-print Network

2 RESONANCE November 2002 ARTICLE-IN-A-BOX Stephen Jay Gould: A View of Life 1941-2002 Stephen Jay, The Flamingo's Smile, Bully for Bron- tosaurus, and Hens' Teeth and Horses' Toes. Stephen Jay Gould trained Gould obtained an undergraduate degree in geology from Antioch College, Ohio, in 1963, and went

Borges, Renee M

36

The Papers of John Jay  

NSDL National Science Digital Library

Contributor to The Federalist, the first Chief Justice of the United States and a two-term governor of New York, John Jay gave much of himself to the fledgling nation. Given that he was an alumnus of Columbia University, it is fitting that this institution has created this omnibus of his collected papers and placed them online. Funded in part by the National Endowment for the Humanities and the Florence Gould Foundation, the Jay materials may be searched by the name of the writer, name of the recipient, date of composition, name of holding institution, and accession number. Along with an extended biographical essay, the site also features four background papers. The papers include hypertext links to germane digitized documents held in the archive and deal with topics such as Jay's work on the treaty of 1794 with the British and his work with France throughout the 1770s. Overall, this is a fine repository of primary documents relating to one of America's early statesmen.

37

(*mechanism discovered since Darwin's time which plays an important role) The Essence of Darwin's Theory of Descent with Modification  

E-print Network

from Stephen Jay Gould, The Structure of Evolutionary Theory, 2002 FACTS: Overproduction: Collectively. "Progress" over time is an illusion based on an anthropocentric viewpoint.) [Note: Gould argued*) [Note: Within this framework, Darwin emphasized gradual change, but Gould emphasized "punctuated

Bird, Peter

38

Ernest Everett Just: Egg and Embryo as Excitable  

E-print Network

author and subject. Stephen Jay Gould wrote a favorable review of Manning's book (Gould, '88 [0 83]), and provided some reflections of his own about Just in a column in Natural History magazine (Gould, '85). Scott

Newman, Stuart A.

39

944 BioScience October 2002 / Vol. 52 No. 10 TIME FOR A CHANGE?  

E-print Network

of the term began in 1977, with the publica- tion of Stephen Jay Gould's Ontogeny and Phylogeny.Gould into the adult stage) would be typical of K-selected species. Gould's classification of heterochronic modes

Reiss, John

40

A few words about evolution Building a hierarchical framework on the foundations of darwinism.  

E-print Network

. The Structure of Evolutionary Theory by Stephen Jay Gould Belknap: 2002. 1,464 pp. $39.95, £27.50, 45.90 euros as a consistent gen- erator of testable hypotheses. For Stephen Jay Gould it is but a foundation, wholly, therealityofmassextinctionsandthelike-- view evolution in general as microevolution plus lots of time and some contingency. Gould

Wake, David B.

41

ORIGINS Perplexing pika parenting puzzle solved by  

E-print Network

for climate p.421 Mismeasure for mismeasure A critique of the work of Stephen Jay Gould should serve evolutionary biologist and celebrated author Stephen Jay Gould, who diedin2002.AlthoughthecritiqueleavesthemajorityofGould'swork unscathed, it carries a special sting because it deconstructs a posthu- mous attack

Anderson, Douglas R.

42

2002 The Society for the Study of Evolution. All rights reserved. Evolution, 56(11), 2002, p. 2346  

E-print Network

. 2346 ANNOUNCEMENTS ON THE SCIENTIFIC LEGACY OF STEPHEN JAY GOULD DAVID B. WAKE Museum of Vertebrate-mail: wakelab@uclink.berkeley.edu Received June 10, 2002. The death of Stephen Jay Gould in May 2002 brought feeling that everything had been done. Gould also came to intellectual maturity in the 1960s

Wake, David B.

43

That Darwin and Haeckel were Complicit in Nazi Biology Robert J. Richards  

E-print Network

. Stephen Jay Gould, Ontogeny and Phylogeny (1977)1 No matter how crooked the road was from Darwin to Hitler, the most prominent of whom, at least among historians of biology, has been Stephen Jay Gould. In his book Ontogeny and Phylogeny (1977), Gould investigated the consequences of Haeckel's "biogenetic law

Richards, Robert J.

44

RETHINKING MARXISM VOLUME 15 NUMBER 4 (OCTOBER 2003) ISSN 0893-5696 print/1475-8059 online/03/040479-18  

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and Stephen Jay Gould's Biopolitics Stuart A. Newman Genetic manipulation promises to introduce biological on how one conceives of the process of organic evolution, the scientific field to which Stephen Jay Gould-wing biologists, Gould and his Harvard colleague Richard Lewontin, have stayed on the sidelines, frequently

Newman, Stuart A.

45

2005 The Paleontological Society. All rights reserved. 0094-8373/05/3102-0006/$1.00 Paleobiology, 31(2), 2005, pp. 7793  

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for comparative methods. They also bear on issues central to Stephen Jay Gould's vision of macroevolution September 2004 Introduction Much of Stephen Jay Gould's work was con- cerned, directly or indirectly. Although Gould did not take an explic- itly phylogenetic approach to these problems, others have in recent

Donoghue, Michael

46

2005 The Paleontological Society. All rights reserved. 0094-8373/05/3102-0004/$1.00 Paleobiology, 31(2), 2005, pp. 3655  

E-print Network

puzzles to Stephen Jay Gould about life on Earth was the cause or causes of the fantastic diversity, both in the history of animal evolution and in the writings of Stephen Jay Gould, as the pivotal event and the unfolding of this cardinal geological mo- ment. [Gould 1998] Introduction The Cambrian explosion stands out

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doi:10.1111/j.1558-5646.2008.00549.x IS A NEW AND GENERAL THEORY OF  

E-print Network

of this essay is borrowed from one of the famous essays written by Stephen Jay Gould, "Is a new and general theory of evolution emerging?", published in Paleobiology in 1980 (Gould 1980). Gould was speculating answers Gould's question in the positive or negative depends on one's perspective; although Gould

Edwards, Scott

48

INCREASINGLY OVERLAPPING MAGISTERIA OF SCIENCE AND CHARLES H LINEWEAVER  

E-print Network

how we ought to behave (Huxley 1894, Williams 1988ab). In Rock of Ages (1999) Stephen Jay Gould lives." (Gould 1997). Gould calls this conceptual segregation "NOMA" (= Non Overlapping MAgisteria (like God) in other spheres (the moral realm, for example)." (Gould 1992) According to Gould science can

Lineweaver, Charles H.

49

Office of the Graduate Council P 4307 Faculty/Administration Building P 577-8050 e-mail: krista.english@wayne.edu P fax: 577-2903  

E-print Network

that the speaker, Stephen Jay Gould, will give two presentations, one on the afternoon of September 16 and a graduate student along with Dr. Gould. Associate Dean Edwards said that a previous Humanities Center

VandeVord, Pamela

50

Dumb design: Evidence for non-optimality or incomplete adaptation in organisms A list compiled by John R. Hutchinson, Lecturer in Evolutionary Biomechanics, June 13 2008  

E-print Network

.;..] #12;Good places to look for more examples: Stephen Jay Gould and Richard C. Lewontin. "The Spandrels books by the same) The Panda's Thumb, SJ Gould (and other books by the same) Cat's Paws and Catapults

Hutchinson, John

51

ORIGINAL ARTICLE doi:10.1111/j.1558-5646.2011.01333.x  

E-print Network

. Stephen Jay Gould often made the point that if life's tape were rewound and replayed, the outcome would be markedly differ- ent (Gould 1989). Adaptive evolution, in his view, is a process often marked by historical

Kassen, Rees

52

Biological Sciences/Philosophy/Logic and Philosophy of Science 142W: Philosophy of Biology (Writing)  

E-print Network

. Recommended reading" Ayala, " The Structure of Evolutionary Theory" On Stephen Jay Gould's Monumental, Punctuated Equilibrium, and Gould's Challenge to "Orthodox" Darwinism Read POB Chs. 3, 4, 6, 10 & 11

Barrett, Jeffrey A.

53

Being Interactive o technology can create a market from  

E-print Network

equilibrium" (nick- named punk eek), as promulgated by evolutionary biologists Stephen Jay Gould and Niles such as Darwin envisioned a slow and steady evolution of better adapted creatures. Gould and Eldredge observed

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Biology and Philosophy 14: 211233, 1999. 1999 Kluwer Academic Publishers. Printed in the Netherlands.  

E-print Network

expressed in his papers on adaptation,1 and in the famous paper he co-authored with Stephen Jay Gould,2 have an evolutionary adaptation ­ and Gould and Lewontin's 1979 paper ­ which embodied an insistence on the high

Lloyd, Elisabeth

55

In Darwin's Shadow: The Life and Science of Alfred Russel Wallace  

E-print Network

, Charles H. Smith and the late Stephen Jay Gould, and interprets Wallace as a "hyperWallaceasahyper-selectionist is now decades old, dating from Gould's charming 1980 essay in Natural History. The obvious

Mallet, James

56

Research Scholarship, Collaboration, and Outreach at Northwestern University SPRING 2014  

E-print Network

and their bodies. Their work certainly validates the words of paleontologist Stephen Jay Gould: "Science is not a heartless pursuit of objective information; it is a creative human activity." Office for Research Jay Walsh

Shahriar, Selim

57

Good Books to Read A compilation of books which will inspire you!  

E-print Network

, Three Rivers Press, 2004. 3. Stephen Jay Gould, The Mismeasure of Man, W.W. Norton & Co., 1996. 4. Peter, Guns, Germs, and Steel: The Fates of Human Societies, W. W. Norton & Company, 1999. 2. Stephen Jay Gould, The Hedgehog, the Fox, and the Magister's Pox: Mending the Gap Between Science and the Humanities

Bhalla, Upinder S.

58

1. Introduction In the past decade, evolutionary psychology has emerged as  

E-print Network

, it became the target of criticisms by paleontologist Stephen Jay Gould and geneticist Richard Lewontin (e in past environments. Since the mid-1970s, paleontologist Stephen J. Gould and geneticist Richard Lewontin.g., Gould & Lewontin 1979; Lewontin 1978; 1979). Perhaps the most prominent criticism they made

Maestripieri, Dario

59

Published in American Scientist, March-April, 2005 (Vol. 93, No. 2): "And Gladly Wolde He Lerne and Gladly Teche"  

E-print Network

of the very best have been the late Stephen Jay Gould and Richard Dawkins. Gould was the more prolific Watchmaker and now The Ancestor's Tale: A Pilgrimage to the Dawn of Life. Gould's last book, The Structure the work is less than half as long as Gould's book, it is priced more than four times as high.) Dawkins

Richards, Robert J.

60

Historical Essay Ernst Haeckel's Alleged Anti-Semitism and  

E-print Network

Gasman's contention was Stephen Jay Gould. In his first book, Ontogeny and Phy- logeny (1977), Gould took mammal, then of a primate, and finally of a distinct human being. Gould wished to assess both of recapitulation, in Gould's estimate, ran counter to Darwin's own theories of em- bryonic development.3

Richards, Robert J.

61

NEW ACQUISITIONS OCT-NOV.13 2009  

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: the dynamic character of movements BL 240.2 .G68 1999 Gould, Stephen Jay Rocks of ages: science and religion connection BF 637 .S8 C68 2004 Covey, Stephen R. The 7 habits of highly effective people: restoring

62

“Anting” in Blue Jays  

PubMed Central

Summary Anting, the plumage-dipping behavior to which ants (mostly formicines) are commonly subjected by birds (mostly passerines), is shown in tests with hand-raised Blue Jays (Cyanocitta cristata) and the ant Formica exsectoides to be instinctive: the birds displayed typical renditions of the behavior on the first occasion that they encountered ants. Evidence is presented supportive of the view that anting is a strategy by which birds render ants fit for ingestion. Formicine ants are ordinarily protected by their formic acid-containing spray. Being wiped into the bird’s plumage causes them to discharge that spray, without harm to the bird, to the point of almost total emptying of the glandular sac in which the secretion is stored. The ants are therefore essentially secretion-free by the time they are swallowed. Further evidence indicates that it is the ant’s possession of the acid sac that triggers the anting behavior in the bird. If F. exsectoides are surgically deprived of their acid sac, they are eaten by the birds without first being subjected to anting. Data are also presented indicating that the ant’s crop, which is especially capacious in formicines (its contents may amount to over 30% of the formicine’s mass), and which appears to survive the anting procedure intact, constitutes, at least when laden, a valuable component of the trophic package that the bird accesses by anting. PMID:19169379

Eisner, Thomas; Aneshansley, Daniel

2008-01-01

63

Evolution: oskar Reveals Missing Link in Co-optive Evolution  

E-print Network

in the history of evolutionary thought to Stephen Jay Gould and Elisabeth Vrba's classic 1982 paper Exaptation-a missing term in the science of form [11]. Gould and Vrba [11] presciently recognized the importance of co Gould and Vrba's [11] complicated terminology and polemics of adaptationism. They introduced the term

Extavour, Cassandra

64

THE QUARTERLY REVIEW MALE SUPERIORITY IN SPATIAL NAVIGATION: ADAPTATION OR  

E-print Network

. Williams, Ernst Mayr, and Richard Dawkins. Others, includ- ing Stephen Jay Gould, Richard Lewontin is an inevita- ble byproduct of the growth fields of the jaws (Gould and Lewontin 1979). The relative of traits has been one of the great debates in evolu- tionary biology over the past half century (Gould

Garland Jr., Theodore

65

IJEE Soapbox: A World free of pArAsites And vectors  

E-print Network

In a celebrated passage, Stephen Jay Gould mused about what would happen, were one to go to some point in the past, and start life again (Gould, 1989): Wind back the tape of life to the early days of the Burgess Shale; let like human intelligence would grace the replay. This is of course impossible, but Gould's thought

Holt, Robert D.

66

Haeckel's embryos: fraud not proven Robert J. Richards  

E-print Network

Haeckel's version of evolution from that of Darwin. Stephen Jay Gould, for example, thought the indictment justified Louis Agassiz's judgment of Haeckel: ``Abscheulich! (Atrocious!)'' (Gould 2000). Ever since the appearance of his book Ontogeny and Phylogeny (1977), Gould had been trying to distinguish Haeckel

Richards, Robert J.

67

Descended from Darwin Insights into the History of  

E-print Network

group of scientists, including Stephen Jay Gould, Thomas Schopf, and David Raup, began to agitate both have labeled the period a "revolution," and indeed as early as 1971 Gould confidently predicted "there" (Gould to Sepkoski, April 28, 1971. Sepkoski Papers.) I argue that this recent development was, in effect

68

Of Excellence and Trends in the Ivory Tower Here is a conundrum: What do "QWERTY" keyboards and the disappearance of 0.400 hitting  

E-print Network

by Stephen Jay Gould, the epitome of popular (and highly successful) science essayist, on evolutionary trends. In his book "Bully for Brontosaurus", Gould explores the evolution of type writers and comes in baseball. In "Full House", Gould goes to great lengths to explain how excellence, and not its disappearance

Louchouarn, Patrick

69

Book review Human natures --A review of The 10,000 Year Explosion  

E-print Network

, in large part, by Richard Lewontin and Stephen Jay Gould, who hoped to banish the menacing biological character- izing the human species" (Lewontin, 2006). In a similar vein, Gould (2000) argued that "natural by Gould and many others, that natural selection could not have produced much change in the human genome

70

Animal behaviour Eurasian jays (Garrulus  

E-print Network

* Department of Experimental Psychology, University of Cambridge, Cambridge CB2 3EB, UK *Author for correspondence (nsc22@cam.ac.uk). Western scrub-jays (Aphelocoma californica) have been shown to overcome present, despite experiencing a conflicting current motivation. We argue that these data address the criticisms

Indiana University

71

COPYRIGHT NOTICE: Robert J. Gould: Electromagnetic Processes  

E-print Network

COPYRIGHT NOTICE: Robert J. Gould: Electromagnetic Processes is published by Princeton University rules) for the calculation of rates of electromagnetic processes. Instead of trying to "derive of electromagnetic radiation begin to be considered seriously.1 In 1922, the par ticle character of the photon

Landweber, Laura

72

Universit Aix Marseille Mmoire pour l'obtention de l'habilitation diriger des recherches  

E-print Network

Jay Gould (1989), de Jonathan Silvertown (2005), de Pascal Picq (2007), de Michel Morange (2003), de biogéographie fonctionnelle et évolutive des pelouses alpines, ensuite les ouvrages de vulgarisation de Stephen

Paris-Sud XI, Université de

73

Office of the Graduate Council P 4307 Faculty/Administration Building P 577-8050 e-mail: krista.english@wayne.edu P fax: 577-2903  

E-print Network

. COLLOQUIUM COMMITTEE Dean Walz reported that this year's Graduate Council Colloquium, featuring Stephen Jay Gould, was a great success and drew an audience that filled Community Arts Auditorium and spilled

VandeVord, Pamela

74

Evolving to the Beat of a Different Theory.  

ERIC Educational Resources Information Center

Presents arguments against the recent "punctuated equilibrium" point of view expressed by evolutionists Stephen Jay Gould and Niles Eldredge. Reviews evidence for continuous and gradual change, as recently cited by four anthropologists in the July 9 issue of "Nature." (CS)

Science News, 1981

1981-01-01

75

On Hair Color in France Ellen Gilkerson  

E-print Network

Jay Gould. Punctuated equilibria: The tempo and mode of evolution reconsidered. Paleobiology, 3]. Additional research may clarify what, exactly, is going on here. References [1] Niles Eldredge and Stephen

Rajamani, Sriram K.

76

UNIVERSIT DU QUBEC RELATION THQUE-KYSTE ET PHYLOGNIE (ADN CODANT POUR L'ARN  

E-print Network

are theories about the basis ofnatural order, not du/l catalogues compiled only to avoid chaos" Stephen Jay Gould, Wonderful Life, L989 #12;III REMERCIEMENTS Maintenant au terme de ce projet, je souhaite expnmer

77

2009, the Year of Science (By Dan Johnson. Published in the column "Public Professor", Lethbridge Herald, Dec 27, 2008)  

E-print Network

Shale Foundation regarding access). The story of the Burgess Shale was made more famous in Stephen Jay Gould's book, "Wonderful Life". Finally, science can also be great fun, and liberating. The methods

Johnson, Dan L.

78

From Alexander von Humboldt to Frederic Edwin Church: Voyages of Scientific Exploration and Creativity  

E-print Network

.......................................................................................................13 „From Humboldt to F. E. Church“ (F. Baron) 2HiN VI, 10 (2005) Humboldt im Netz From Alexander von Humboldt to Frederic Edwin Church: Voyages of Scientific Exploration and Creativity Frank Baron Abstract Stephen Jay Gould wrote recently that „when.... Zusammenfassung Der amerikanische Wissenschaftshistoriker Stephen Jay Gould stellte fest, daß Alexander von Humboldt um die Mitte des neunzehnten Jahrhunderts vielleicht der berühmteste und einflußreichste Intellektuelle gewesen sei. Zu diesem Zeitpunkt bietet...

Baron, Frank

2005-01-01

79

Stephen Giovannoni  

NSDL National Science Digital Library

The site features a research profile of Stephen Giovannoni, Professor of Microbiology and Director of the Molecular and Cellular Biology Program at Oregon State University. Giovannoni's research focuses on discovering new organisms in oceans, alpine lakes, and the oceanic lithosphere with long-term goals of understanding the cellular adaptations and ecology of prokaryotes in nature by focusing on species that are abundant and important in biogeochemical cycles. The site provides research descriptions, a list of selected publications, and links to Giovannoni's laboratory home page, Oregon State University, the Microbiology Department, the Molecular and Cellular Biology Program, and the home page and index of faculty for the Center for Gene Research and Biotechnology.

2010-04-07

80

CO depletion in the Gould Belt clouds  

NASA Astrophysics Data System (ADS)

We present a statistical comparison of CO depletion in a set of local molecular clouds within the Gould Belt using Sub-millimetre Common User Bolometer Array (SCUBA) and Heterodyne Array Receiver Programme (HARP) data. This is the most wide-ranging study of depletion thus far within the Gould Belt. We estimate CO column densities assuming local thermodynamic equilibrium and, for a selection of sources, using the radiative transfer code RADEX in order to compare the two column density estimation methods. High levels of depletion are seen in the centres of several dust cores in all the clouds. We find that in the gas surrounding protostars, levels of depletion are somewhat lower than for starless cores with the exception of a few highly depleted protostellar cores in Serpens and NGC 2024. There is a tentative correlation between core mass and core depletion, particularly in Taurus and Serpens. Taurus has, on average, the highest levels of depletion. Ophiuchus has low average levels of depletion which could perhaps be related to the anomalous dust grain size distribution observed in this cloud. High levels of depletion are often seen around the edges of regions of optical emission (Orion) or in more evolved or less dynamic regions such as the bowl of L1495 in Taurus and the north-western region of Serpens.

Christie, H.; Viti, S.; Yates, J.; Hatchell, J.; Fuller, G. A.; Duarte-Cabral, A.; Sadavoy, S.; Buckle, J. V.; Graves, S.; Roberts, J.; Nutter, D.; Davis, C.; White, G. J.; Hogerheijde, M.; Ward-Thompson, D.; Butner, H.; Richer, J.; Di Francesco, J.

2012-05-01

81

2005 The Paleontological Society. All rights reserved. 0094-8373/05/3102-0011/$1.00 Paleobiology, 31(2, Supplement), 2005, pp. 146156  

E-print Network

Jay Gould's last book, The Structure of Evolutionary Thought, he tried to rehabilitate this category the Modern Synthesis. Indeed, one such trend, orthogenesis, is famous for having been discredited. In Stephen to Gould's project by adding another candidate trend to this category. Daniel W. McShea. Department

McShea, Daniel W.

82

Hybridization and the Typological Paradigm  

E-print Network

19 See for example Louis Agassiz?s letter to his mother in which he describes his reaction to seeing black people found in its entirety in Stephen Jay Gould?s Mismeasure of Man pp 44-45. See also Harrisons (1996) for a history of the relationship...

Carlson, Charles

2012-02-14

83

Office of the Graduate Council P 4307 Faculty/Administration Building P 577-8050 e-mail: krista.english@wayne.edu P fax: 577-2903  

E-print Network

Jay Gould will be the speaker for the Graduate Council Colloquium, on September 16th. The Colloquium. GRADUATE COUNCIL COLLOQUIUM UPDATE Francis Shor, chair of the colloquium committee, reported that Stephen will be part of the activities surrounding the inauguration of Dr. Irvin Reid as the president. Dr. Gould

VandeVord, Pamela

84

Neo-Lysenkoism, IQ, and the Press.  

ERIC Educational Resources Information Center

In "The Mismeasure of Man," a history of efforts to measure intelligence, Stephen Jay Gould is highly selective in his account, and tests for scientific truth by the standards of his own social and political convictions. Specifically, to combat racist approaches to theories of intelligence, Gould presses for equal and opposite bias. (Author/GC)

Davis, Bernard D.

1983-01-01

85

29. Aerial photograph (1973) looking south across Gould Island. Firing ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

29. Aerial photograph (1973) looking south across Gould Island. Firing pier (still possessing third and fourth levels) in foreground. Pitched roof extending from south end of firing pier marks location of frame approach between pier and shop building (center rear) and power plant (to right of shop). Photo courtesy of Naval Undersea Warfare Center, Division Newport, Rhode Island. - Naval Torpedo Station, Firing Pier, North end of Gould Island in Narragansett Bay, Newport, Newport County, RI

86

What currency do scatter-hoarding gray jays maximize?  

Microsoft Academic Search

Gray jays (Perisoreus canadensis) cache thousands of food items during each summer for use during the subsequent winter. Previous work on the economics of gray jay scatter-hoarding behavior was based on the assumption that the jays maximize the rate at which they store food energy; alternative currencies were not considered. Here we develop and test models based on two currencies,

T. A. Waite; R. C. Ydenberg

1994-01-01

87

Adaptive Radiations in the Context of Macroevolutionary Theory: A Paleontological Perspective  

E-print Network

. Taking the pulse of the Cambrian radiation. Journal of Integrative and Comparative Biology 43:229-237. 26 Lieberman BS, Vrba ES. 1995. Hierarchy theory, selection, and sorting. Bioscience 45(6):394?399. Lieberman BS, Vrba ES. 2005. Stephen Jay Gould... 1944, 1953; Eldredge and Gould 1972; Eldredge 1979, 1989; Stanley 1979; Eldredge and Cracraft 1980; Cracraft 1982; Gould 1990; Lieberman 1993; Givnish 1997; Vogler and Goldstein 1997; Futuyma 1998; Schluter 2000; Losos and Miles 2002; Grant and Grant...

Lieberman, Bruce S.

2012-01-01

88

Exploring the Americas in a Humboldt Digital Library: Problems and Solutions  

E-print Network

and mineral resources west of the recently acquired Louisiana region (present-day Texas) (Baron 2004). Stephen Jay Gould wrote: “[In the 1850s] Alexander von Humboldt may well have been the world’s most famous and influential intellectual” (Gould 2003, 93...: Bibliographie der selbständig erschienenen Werke. Berlin: Akademie Verlag. Gould, S. 2003. I Have Landed: The End and Beginning in Natural History. New York: Three Rivers Press. Helfreich, G. 2004. Humboldt’s Cosmos: Alexander von Humboldt...

Baron, Frank; Doherr, Detlev

2006-07-01

89

Time Restored - The Harrison Timekeepers and R.T. Gould, the Man Who Knew (Almost) Everything  

Microsoft Academic Search

This is the story of Rupert T. Gould (1890-1948), the polymath and horologist. A remarkable man, Lt Cmdr Gould made important contributions in an extraordinary range of subject areas throughout his relatively short and dramatically troubled life. From antique clocks to scientific mysteries, from typewriters to the first systematic study of the Loch Ness Monster, Gould studied and published on

Jonathan Betts

2006-01-01

90

CALIFORNIA SCRUB JAY FORAGES ON MULE DEER  

Microsoft Academic Search

Two reports exist in the literature of oxpecker-like behavior in the Scrub Jay (Aphelocoma coerulescens sensu lato), one with Mule Deer (Odocoileus hernionus) in California (Dixon 1944) and one with feral hogs in Florida (Barber and Morris 1980). In 1944 Dixon queried, \\

IRENE CAMPBELL; N. Alta Vista; ROBERT W. DICKERMAN

1994-01-01

91

Proc. Natl. Acad. Sci. USA Vol. 96, pp. 1027210277, August 1999  

E-print Network

and Evolutionary Biology, Harvard University, 16 Divinity Avenue, Cambridge, MA 02138 Communicated by Stephen Jay and species selection in gastropods THOMAS F. DUDA, JR. AND STEPHEN R. PALUMBI Department of Organismic Gould, Harvard University, Cambridge, MA, June 11, 1999 (received for review May 21, 1998) ABSTRACT

Palumbi, Stephen

92

4. CONTEXTUAL VIEW OF DITCH OVERLOOKING THE GOULD RANCH SITE, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

4. CONTEXTUAL VIEW OF DITCH OVERLOOKING THE GOULD RANCH SITE, HIGHWAY 50'S OVERPASS FOR THE R/R & OLD PLACERVILLE ROAD ON LEFT. EAST BIDWELL STREET APPROACHES TO HIGHWAY 50 ON RIGHT; VIEW TO SOUTH. - Keefe-McDerby Mine Ditch, East of East Bidwell Street between Clarksville Road & Highway 50, Folsom, Sacramento County, CA

93

Jay A. Davis Page 1 CURRICULUM VITAE  

E-print Network

, USA. Science of the Total Environment 391: 66-75. Davis, J.A., F. Hetzel, and J.J. Oram. 2007. Environ. Mon. Assess. 64(1): 409-419 #12;Jay A. Davis Page 2 Johnson, G.W., W.M. Jarman, C.E. Bacon, J.M., G.W. Johnson, C.E. Bacon, J.A. Davis, R.W. Risebrough, an

94

Identifying vocalizations and their possible function in Texas Blue Jays  

E-print Network

, Schizachyri um scoparium, indian grass, Sorghastrum nutans, switchgrass, Panicum virgatum and others. Evidence suggests that the shrub and tree densities have increased substantially over the past century (Gould 1975). Topography of the Post Oak Savannah...

Jeter-Edwards, Julie

2012-06-07

95

Adult Gray Jay Captures an Adult Black-capped Chickadee  

Microsoft Academic Search

We observed an adult Gray Jay (Perisoreus canadensis) that had captured an adult Black-capped Chickadee (Poecile atricapillus) in Al- gonquin Provincial Park, Ontario, Canada, during win- ter. Aerial pursuit of small, adult birds and an instance of capture and predation of a juvenile bird by a Gray Jay have been reported previously. Here, we present the first documented case of

DOUGLAS C. TOZER; MARTHA L. ALLEN

2004-01-01

96

Retrospective Cognition by Food-Caching Western Scrub-Jays  

ERIC Educational Resources Information Center

Episodic-like memory, the retrospective component of cognitive time travel in animals, needs to fulfil three criteria to meet the behavioral properties of episodic memory as defined for humans. Here, we review results obtained with the cache-recovery paradigm with western scrub-jays and conclude that they fulfil these three criteria. The jays

de Kort, S.R.; Dickinson, A.; Clayton, N.S.

2005-01-01

97

Review of Gould Dincer reservoir storage yield reliability estimates  

NASA Astrophysics Data System (ADS)

The Gould-Dincer suite of techniques (normal, log-normal and Gamma), which is used to estimate the reservoir capacity-yield-reliability ( S-Y-R) relationship, is the only known available procedure in the form of a simple formula, based on annual streamflow statistics, that allows one to compute the S-Y-R relationship for a single storage capacity across the range of annual streamflow characteristics observed globally. Several other techniques are available but they are inadequate because of the restricted range of flows on which they were developed or because they are based on the Sequent Peak Algorithm or are not suitable to compute steady-state reliability values. This paper examines the theoretical basis of the Gould-Dincer approach and applies the three models to annual streamflow data for 729 rivers distributed world-wide. The reservoir capacities estimated by the models are compared with equivalent estimates based on the Extended Deficit Analysis, Behaviour analysis and the Sequent Peak Algorithm. The results suggest that, in the context of preliminary water resources planning, the Gould-Dincer Gamma model provides reliable estimates of the mean first passage time from a full to empty condition for single reservoirs. Furthermore, the storage estimates are equivalent to deficits computed using the Extended Deficit Analysis for values of drift between 0.4 and 1.0 and the values are consistent with those computed using a Behaviour simulation or a Sequent Peak Algorithm. Finally, a sensitivity analysis of the effect on storage of the four main streamflow statistics confirms that the influential ones are mean and standard deviation, while effects of skew and serial correlation are orders of magnitude lower. This finding suggests that the simple reduced form of the Gould-Dincer equation may profitably be used for regional studies of reservoir reliability subject to climate change scenarios based on regional statistics, without having to perform calculations based on time series, which may not be easily obtained.

McMahon, Thomas A.; Pegram, Geoffrey G. S.; Vogel, Richard M.; Peel, Murray C.

2007-09-01

98

JayDoc HistoWeb  

NSDL National Science Digital Library

JayDoc HistoWeb, provided by two medical students at the University of Kansas, is a frames-based site that provides hundreds of microscopic anatomical images, topically arranged in 19 categories ranging from blood & bone marrow to vascular system. Each image is accompanied by a short annotation and scale bar. Interested users have the option of clicking a button for a much larger view. Note that though this site is extremely graphical and may be a challenge to those with slow connections, it is a treasure house of anatomical information.

Scarbrough, Marc.; Wolf, Milton.

1996-01-01

99

"It is written": representations of determinism in contemporary popular science writing and contemporary British fiction  

E-print Network

noted that “My recreational reading — books I read for fun, magazines I read in airplanes — is likely to be pop science of the Stephen Jay Gould or Scientific American type”; A.S. Byatt dedicates A Whistling Woman to the geneticist and popular science... , River Out of Eden (New York: Basic Books, 1995); Gary Zukav, The Dancing Wu Li Masters (London: Fontana, 1979); James Gleick, Chaos: Making a New Science (London: Vintage, 1998); Stephen Jay Gould, Wonderful Life: The Burgess Shale and the Nature...

Smith, Bradon T L

2011-01-11

100

Jay DeFeo: A Retrospective  

NSDL National Science Digital Library

The San Francisco Museum of Modern Art (SGFMOMA) has mounted a retrospective exhibition of the work of Jay DeFeo (1929-1989), who was active in the Bay area from the 1950s to the 1980s. The show will be on view at SFMOMA until February 3, 2013; on the website, select the Related Multimedia tab to see a selection of audio and video resources on DeFeo. Possibly most moving is Bruce Conner's film on DeFeo's most famous painting, "The Rose" (1958ââ?¬â??66). DeFeo worked on the painting for eight years, until it took up an entire room of the apartment she shared with her husband, Wally Hedrick (1928-2003) and weighed roughly a ton. Conner's short film documents the day when "The Rose" was removed, since DeFeo and Hedrick had been evicted. It was shown twice in California, in 1969. Another video, "The afterlife of Jay DeFeo's The Rose" documents the conservation of "The Rose" in June of 1995, after spending 25 years in storage. After conservation, "The Rose" travelled to New York City, where it was featured in the Whitney Museum's exhibition, "Beat Culture and the New America, 1950-1965."

101

Profile of Stephen Hawking  

Microsoft Academic Search

Although Stephen Hawking's early academic career lacked focus, the development of motor neuron disease straining against his hopes for a fulfilling life pulled the young scientist's work together. He has since become the world's most famous scientist due, in part, to his strong belief that science should be accessible to the general public. Hawking has published frequently for the academic

Kathleen Lehman

2011-01-01

102

The Task of the Referee Alan Jay Smith  

E-print Network

The Task of the Referee * Alan Jay Smith Computer Science Division EECS Department University professional. Typically, referees learn to ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ * Prof. Smith's research

Torr, Philip H. S.

103

Stephen Hawking's Universe  

NSDL National Science Digital Library

This website accompanies the Public Broadcasting Service's (PBS) series of television programs, based on the work of physicist Stephen Hawking, which address ideas and questions about the universe. Topics discussed include explanations of quarks, quasars, neutrinos, wormholes, ancient to current ideas about the universe, unsolved mysteries, and information about past astronomers such as: Kepler, Ptolemy, Copernicus, and Galileo. A teacher's guide and a list of links to related sites are also included. The accompanying video is available through mail order.

104

IN MY OPINION: Is Physics debatable?  

Microsoft Academic Search

Stephen Jay Gould is, unfortunately, a palaeontologist. I write unfortunately because if he were a physicist we would all have benefited from his innumerable entertaining and informative essays [1]. His steady theme involves an obscure subject like palaeontology and why the subject links so strongly with the human condition. The key, of course, is evolution, and the light it sheds

Ken Dobson

2000-01-01

105

Darwin's Revolution in Thought: An Illustrated Lecture. Teaching Guide and Videotape.  

ERIC Educational Resources Information Center

"Darwin's Revolution in Thought" is Stephen Jay Gould's definitive treatise on Charles Darwin. This 50-minute classroom edition videotaped lecture is structured in the form of a paradox and three riddles about Darwin's life. Each is designed to shed light on one of the key features of the theory of natural selection, its philosophical radicalism,…

Gould, Stephen Jay

106

Grade Inflation and the Extinction of the .400 Hitter.  

ERIC Educational Resources Information Center

In "Full House: The Spread of Excellence from Plato to Darwin," Stephen Jay Gould swats at nostalgia over extinction of the .400 batter--due more to game improvements than slumping batters. The better the averages, the harder it is to be a standout. As for grade inflation, today's students are studying harder subjects, and general achievement…

Bracey, Gerald W.

1998-01-01

107

LBL RUNAROUND RESULTS 3.00 km (1.86 mi) September 24, 1993 Place Time Name GroupGroup  

E-print Network

50-59 1 26 12:24 Fred Buhl 40-49 5 27 12:25 no name on envelope 40-49 6 28 12:26 Carl T. Gould :03 Ross Decker Stephen RESULTS 3.00 km (1.86 mi) September 24, 1993 page 2 Place Time Name GroupGroup Place 117 14:23 Jay Daniel

108

Central Office of Student Affairs  

E-print Network

Alexandra W. Logue Executive Vice Chancellor and University Provost Jay Hershenson Senior Vice Chancellor. Gould President, Brooklyn College Russell K. Hotzler President, New York City College of Technology Rodriguez President Hostos Community College Stephen B. Shepard Dean, CUNY Graduate School of Journalism

Rosen, Jay

109

BUSINeSS (Ph.D.) Executive Officer: Professor Joseph Weintrop  

E-print Network

. Gengler n Aloke Ghosh n Christos I. Giannikos n Stephen J. Gould n Andreas Grein n Shulamith Gross n Jay Dahya n Masako N. Darrough n T. K. Das n Harry Z. Davis n Paquita Y. Davis-Friday n Gayle DeLong n

Dennehy, John

110

Poster Presentations Marcella Alsan, MD, MPH, PhD  

E-print Network

vaccination: Evidence from the 1985 Turkish campaign Michele Barry, MD; Stephen Luby, MD; Nancy Federspiel, Ph and pain outcomes of diverse interventions Susan Gage, MD; Jeffrey B. Gould, MD; John Oehlert MS; Gary M, PhD; Jay Mitchell, JD; Patrick Archie, PhD; Rebecca Bird, PhD; Doug Bird, PhD; Jennifer Brody, Ph

Kay, Mark A.

111

DIReCTORIeS the bOard Of trustees Of the citY uNiVersitY Of New YOrk  

E-print Network

, B.A., J.D., General Counsel and Senior Vice Chancellor for Legal Affairs Jay Hershenson, B.A., M College Carole M. Berotte Joseph, B.A., M.A., Ph.D. President, Bronx Community College Karen L. Gould, B.D. Interim President, The Graduate Center Stephen B. Shepard, B.A., M.S. Dean, The Graduate School

Dennehy, John

112

The Trying Out of the Essay: How Scientific Essayists Compose.  

ERIC Educational Resources Information Center

Six scientific essayists were interviewed to gain some understanding of their writing processes. The writers were Roger Sawin, who writes for "Horticulture"; Harold Morowitz who writes for "Hospital Practices,""Science 82" and "Science 83"; Stephen Jay Gould who writes for "Natural History"; Jeremy Bernstein who writes for the "New Yorker" and…

Dowdy, Diane

113

Founders Day DISTINGUISHED ALUMNUS/A AWARD  

E-print Network

. Jay Parkinson C. Lowell Lees Harold Orlob Gail Plummer 1966 Franklin S. Forsberg Joseph Jensen Thomas ­ Elmo R. Morgan 1981 Charles H. Bradford Edward W. Clyde William R. Gould Emma Lou W. Thayne Honorary. Snyder, Sr., M.D. 1992 Robert D. Hales M. Ray Kingston Stephen B. Nebeker Helen Bowring Ure Honorary ­ J

Provancher, William

114

Better than Ever.  

ERIC Educational Resources Information Center

Paleontologist Stephen Jay Gould contends that .400 hitter in baseball is thing of past because game has gotten better. The higher average, the harder to stand out from that average. Applies concept to education by comparing students' SAT scores over almost 20 years with grade-point averages. Students with highest grades received highest SAT…

Bracey, Gerald W.

1998-01-01

115

Mind the Gap (or Mending It): Qualitative Research and Interdisciplinarity in Kinesiology  

ERIC Educational Resources Information Center

This article addresses the perceived gap between the humanities and social sciences, and the sciences in kinesiology faculties and departments as interdisciplinary pressures mount in an increasingly complex world. I use an historical lens to highlight past difficulties in working across the two solitudes and describe Stephen Jay Gould's efforts to…

Vertinsky, Patricia

2009-01-01

116

Time Restored - The Harrison Timekeepers and R.T. Gould, the Man Who Knew (Almost) Everything  

NASA Astrophysics Data System (ADS)

This is the story of Rupert T. Gould (1890-1948), the polymath and horologist. A remarkable man, Lt Cmdr Gould made important contributions in an extraordinary range of subject areas throughout his relatively short and dramatically troubled life. From antique clocks to scientific mysteries, from typewriters to the first systematic study of the Loch Ness Monster, Gould studied and published on them all. With the title The Stargazer, Gould was an early broadcaster on the BBC's Children's Hour when, with his encyclopaedic knowledge, he became known as The Man Who Knew Everything. Not surprisingly, he was also part of that elite group on BBC radio who formed The Brains Trust, giving on-the-spot answers to all manner of wide ranging and difficult questions. With his wide learning and photographic memory, Gould awed a national audience, becoming one of the era's radio celebrities. During the 1920s Gould restored the complex and highly significant marine timekeepers constructed by John Harrison (1693-1776), and wrote the unsurpassed classic, The Marine Chronometer, its History and Development . Today he is virtually unknown, his horological contributions scarcely mentioned in Dava Sobel's bestseller Longitude. The TV version of Longitude, in which Jeremy Irons played Rupert Gould, did at least introduce Gould's name to a wider public. Gould suffered terrible bouts of depression, resulting in a number of nervous breakdowns. These, coupled with his obsessive and pedantic nature, led to a scandalously-reported separation from his wife and cost him his family, his home, his job, and his closest friends. In this first-ever biography of Rupert Gould, Jonathan Betts, the Royal Observatory Greenwich's Senior Horologist, has given us a compelling account of a talented but flawed individual. Using hitherto unknown personal journals, the family's extensive collection of photographs, and the polymath's surviving records and notes, Betts tells the story of how Gould's early life, his naval career, and his celebrity status came together as this talented Englishman restored part of Britain's--and the world's--most important technical heritage: John Harrison's marine timekeepers.

Betts, Jonathan

2006-09-01

117

A temporal shift in Steller's jay predation on Kathryn E. Sieving and Mary F. Willson  

E-print Network

NOTES A temporal shift in Steller's jay predation on bird eggs Kathryn E. Sieving and Mary F containing quail eggs, egg losses and jay activity levels were significantly higher in forest adjacent predation near edges was significantly reduced, and this was correlated with a drop in jay activity

Sieving, Kathryn E.

118

VIP interview: John D. (Jay) Rockefeller IV, United States Senator.  

PubMed

John D. (Jay) Rockefeller IV has proudly served the people of West Virginia for nearly 30 years. After coming to the town of Emmons in 1964 as a VISTA worker, Jay Rockefeller made the Mountain State his home. In 1966, he was elected to a two-year term in the West Virginia House of Delegates. He then served four years as Secretary of State, three years as President of West Virginia Wesleyan College, and eight years as Governor of West Virginia. In 1984, he was elected to the United States Senate and was reelected in 1990. PMID:10134008

Rockefeller, J D

1994-01-01

119

Level II scour analysis for Bridge 22 (JAY-TH00400022) on Town Highway 40, crossing Jay Branch, Jay, Vermont  

USGS Publications Warehouse

8). A Level II study is a basic engineering analysis of the site, including a quantitative analysis of stream stability and scour (U.S. Department of Transportation, 1993). Results of a Level I scour investigation also are included in Appendix E of this report. A Level I investigation provides a qualitative geomorphic characterization of the study site. Information on the bridge, gleaned from Vermont Agency of Transportation (VTAOT) files, was compiled prior to conducting Level I and Level II analyses and is found in Appendix D. The site is in the Green Mountain section of the New England physiographic province in northern Vermont. The 2.15-mi2 drainage area is in a predominantly rural and forested basin. In the vicinity of the study site, the surface cover is primarily pasture on the upstream and downstream left overbank while the immediate banks have dense woody vegetation. The downstream right overbank of the bridge is forested. In the study area, Jay Branch Tributary has an incised, sinuous channel with a slope of approximately 0.02 ft/ft, an average channel top width of 26 ft and an average bank height of 3 ft. The channel bed material ranges from gravel to cobble with a median grain size (D50) of 40.5 mm (0.133 ft). The geomorphic assessment at the time of the Level I and Level II site visit on June 7, 1995, indicated that the reach was stable. The Town Highway 40 crossing of Jay Branch Tributary is a 27-ft-long, two-lane bridge consisting of one 25-foot steel-beam span (Vermont Agency of Transportation, written communication, March 6, 1995). The opening length of the structure parallel to the bridge face is 23.5 ft. The bridge is supported by vertical, concrete abutments with wingwalls. The channel skew and the opening-skew-to-roadway are zero degrees. The scour counter-measures at the site included type-2 stone fill (less than 36 inches diameter) at the upstream end of the left and right abutments, at the upstream right wingwall, and at the downstream left wingwall. There was also type-3 stone fill (less than 48 inches diameter) at the upstream left and downstream right wingwall. Additional details describing conditions at the site are included in the Level II Summary and Appendices D and E. Scour depths and recommended rock rip-rap sizes were computed using the general guidelines described in Hydraulic Engineering Circular 18 (Richardson and others, 1995). Total scour at a highway crossing is comprised of three components: 1) long-term streambed degradation; 2) contraction scour (due to accelerated flow caused by a reduction in flow area at a bridge) and; 3) local scour (caused by accelerated flow around piers and abutments). Total scour is the sum of the three components. Equations are available to compute depths for contraction and local scour and a summary of the results of these computations follows. Contraction scour for all modelled flows ranged from 0.7 to 1.1 ft. The worst-case contraction scour occurred at the 500-year discharge. Left abutment scour ranged from 4.6 to 4.9 ft. The worst-case left abutment scour occurred at the 100-year discharge. Right abutment scour ranged from 4.0 to 5.0 ft. The worst-case right abutment scour occurred at the 500-year discharge. Additional information on scour depths and depths to armoring are included in the section titled “Scour Results”. Scoured-streambed elevations, based on the calculated scour depths, are presented in tables 1 and 2. A cross-section of the scour computed at the bridge is presented in figure 8. Scour depths were calculated assuming an infinite depth of erosive material and a homogeneous particle-size distribution. It is generally accepted that the Froehlich equation (abutment scour) gives “excessively conservative estimates of scour depths” (Richardson and others, 1995, p. 47). Usually, computed scour depths are evaluated in combination with other information i

Ivanoff, Michael A.; Song, Donald L.

1997-01-01

120

Remeasuring man.  

PubMed

Samuel George Morton (1799-1851) was the most highly regarded American scientist of the early and middle 19th century. Thanks largely to Stephen Jay Gould's book The Mismeasure of Man, Morton's cranial capacity measurements of different races is now held up as a prime example of and cautionary tale against scientific racism. A team of anthropologists recently reevaluated Morton's work and argued that it was Gould, not Morton, who was biased in his analysis. This article is a reexamination of the Morton and Gould controversy. It argues that most of Gould's arguments against Morton are sound. Although Gould made some errors and overstated his case in a number of places, he provided prima facia evidence, as yet unrefuted, that Morton did indeed mismeasure his skulls in ways that conformed to 19th century racial biases. Gould's critique of Morton ought to remain as an illustration of implicit bias in science. PMID:24761929

Weisberg, Michael

2014-05-01

121

Required Information Release Stephen Chong  

E-print Network

Required Information Release Stephen Chong School of Engineering and Applied Sciences Harvard re- quirement to release information. Such requirements are an important part of a system's information security requirements. Current information-flow control techniques are able to reason about

Chong, Stephen

122

In this issue: Stephen Humphries  

E-print Network

,000. The recipient also receives for the year the sculpture Wildfire by Helaman Ferguson, a former member of the BYU Wildfire, Sculpture by Helaman Ferguson Stephen Humphries Sculpture, Wildfire by Helaman Ferguson #12;(SA

Seamons, Kent E.

123

The distribution and status of Sichuan Grey Jay ( Perisoreus internigrans )  

Microsoft Academic Search

Summary The Sichuan Grey Jay is one of the least known endemic bird species in China, distributed in Gansu, Sichuan, Qinghai and Tibet in west China. The species inhabits the mountain spruce-fir conifer forest, at the altitude between 2 900 m to 3 800 m. Males are slightly larger than females. 31.3 % (n=19) of the individuals were found to

Sun Yue-Hua; Jia Chen-Xi; Fang Yun

2001-01-01

124

Jay Melosh was right! Earthquake acoustics can trigger fault rupture  

Microsoft Academic Search

We insert dynamic fragmentation into Jay Melosh's acoustic fluidization hypothesis as the mechanism for providing sufficient energy in a granular material to cause it to become a dense granular flow with low strength and resistance. A defect in previous analyses of acoustic fluidization was in treating it only as pressure-wave propagation, and finding that too much energy was required to

M. J. McSaveney; T. R. Davies

2009-01-01

125

Electrochemical Isotope Effect and Lithium Isotope Separation Jay R. Black,  

E-print Network

Electrochemical Isotope Effect and Lithium Isotope Separation Jay R. Black, Grant Umeda, Bruce Dunn May 19, 2009; E-mail: akavner@ucla.edu The electrochemical separation of lithium isotopes is of growing interest due to the need for pure 6 Li and 7 Li isotopes in the nuclear industry.1 Here we present

Mcdonough, William F.

126

The Development of a Psychological Aesthetic: Jay Hambidge & Charles Henry.  

ERIC Educational Resources Information Center

This article reviews several movements in late 19th and early 20th century art and psychological research that are related to the early Greek method of proportional analysis generally known as the Golden Section. The document discusses the work of the artist Jay Hambidge on the nature of Greek art and design and his theory of dynamic symmetry.…

McWhinnie, Harold J.

127

Invasive Species Traits Jay, Josia, Rebecca, Alexandra, Vincent  

E-print Network

Introduction? McGregor et al, Diversity & Distributions 2012 #12;Pinus contorta #12;Species Statu s Fire engelmanii 0 2 28 3.5 45 13 Pinus lambertiana 0 2 40 4 216 49 Pinus banksiana 1 0 3 3.5 3 2 Pinus contorta 1Invasive Species Traits of Pinus. Jay, Josia, Rebecca, Alexandra, Vincent #12;. Traits thats

Schweik, Charles M.

128

Codes of constant Lee or Euclidean weight Jay A. Wood  

E-print Network

such matrices A, A0 are equivalent if M M0 mod p and N N0 mod p. #12;CODES OF CONSTANT LEE OR EUCLIDEAN WEIGHTCodes of constant Lee or Euclidean weight Jay A. Wood Department of Mathematics, Computer Science.calumet.purdue.edu public math wood Abstract. Carlet 2 has determined the linear codes over Z=4 of constant Lee weight

Wood, Jay

129

AVERSION/ATTRACTION OF BLUE JAYS TO MICROWAVE IRRADIATION  

EPA Science Inventory

Aversion/attraction experiments were conducted to determine whether birds can perceive of 2.45 GHz continuous wave microwave irradiation by observing whether Blue Jays (Cyanocitta cristata) exhibit an attraction or an aversion to the field when exposed to 25 and 50 microwaves/sq ...

130

Continuits et discontinuits des mcanismes de la variation dans L'Origine des espces (1859)  

E-print Network

'autre côté, le courant ponc- tualiste, représenté par la théorie des équilibres ponctués de Stephen Jay Gould gradualism» (Gould & Eldredge 1972). D09-charbonnat-070109.indd 1 7/01/09 16:18:53 #12;On pourrait qualifier Eldredge & Gould (1972: 84), la temporalité de la vie, ou «l'histoire de l'évolution» (sous l'angle du

Boyer, Edmond

131

Father of mothering: Jay S. Rosenblatt Jay S. Rosenblatt was the recipient of the first Daniel S. Lehrman  

E-print Network

Danny's untimely death in 1972. Jay and Danny Lehrman were graduate students together at New York became Director of the IAB in 1972 following Danny Lehrman's death and remained Director for more than 17 60 years as a scientist, many of which were seminal to the field of the psychobiology of parental

Sokolowski, Marla

132

Planck intermediate results. XII: Diffuse Galactic components in the Gould Belt System  

E-print Network

We perform an analysis of the diffuse low-frequency Galactic components in the Southern part of the Gould Belt system ($130^\\circ\\leq l\\leq 230^\\circ$ and $-50^\\circ\\leq b\\leq -10^\\circ$). Strong UV flux coming from the Gould Belt super-association is responsible for bright diffuse foregrounds that we observe from our position inside the system and that can help us improve our knowledge of the Galactic emission. Free-free emission and anomalous microwave emission (AME) are the dominant components at low frequencies ($\

Ade, P A R; Alves, M I R; Arnaud, M; Ashdown, M; Atrio-Barandela, F; Aumont, J; Baccigalupi, C; Banday, A J; Barreiro, R B; Bartlett, J G; Battaner, E; Bedini, L; Benabed, K; Benoît, A; Bernard, J -P; Bersanelli, M; Bonaldi, A; Bond, J R; Borrill, J; Bouchet, F R; Boulanger, F; Burigana, C; Butler, R C; Chen, X; Chiang, L -Y; Christensen, P R; Clements, D L; Colombi, S; Colombo, L P L; Coulais, A; Cuttaia, F; Davies, R D; Davis, R J; de Bernardis, P; de Zotti, G; Delabrouille, J; Dickinson, C; Diego, J M; Dobler, G; Dole, H; Donzelli, S; Doré, O; Douspis, M; Dupac, X; Enßlin, T A; Finelli, F; Forni, O; Frailis, M; Franceschi, E; Galeotta, S; Ganga, K; Génova-Santos, R T; Ghosh, T; Giard, M; Giardino, G; Giraud-Héraud, Y; González-Nuevo, J; Górski, K M; Gregorio, A; Gruppuso, A; Hansen, F K; Harrison, D; Hernández-Monteagudo, C; Hildebrandt, S R; Hivon, E; Hobson, M; Holmes, W A; Hornstrup, A; Hovest, W; Huffenberger, K M; Jaffe, T R; Jaffe, A H; Juvela, M; Keihänen, E; Keskitalo, R; Kisner, T S; Knoche, J; Kunz, M; Kurki-Suonio, H; Lagache, G; Lähteenmäki, A; Lamarre, J -M; Lasenby, A; Lawrence, C R; Leach, S; Leonardi, R; Lilje, P B; Linden-Vørnle, M; Lubin, P M; Macías-Pérez, J F; Maffei, B; Maino, D; Mandolesi, N; Maris, M; Marshall, D J; Martin, P G; Martínez-González, E; Masi, S; Massardi, M; Matarrese, S; Mazzotta, P; Melchiorri, A; Mennella, A; Mitra, S; Miville-Deschênes, M -A; Moneti, A; Montier, L; Morgante, G; Mortlock, D; Munshi, D; Murphy, J A; Naselsky, P; Nati, F; Natoli, P; Nørgaard-Nielsen, H U; Noviello, F; Novikov, D; Novikov, I; Osborne, S; Oxborrow, C A; Pajot, F; Paladini, R; Paoletti, D; Peel, M; Perotto, L; Perrotta, F; Piacentini, F; Piat, M; Pierpaoli, E; Pietrobon, D; Plaszczynski, S; Pointecouteau, E; Polenta, G; Popa, L; Poutanen, T; Pratt, G W; Prunet, S; Puget, J -L; Rachen, J P; Reach, W T; Rebolo, R; Reinecke, M; Renault, C; Ricciardi, S; Ristorcelli, I; Rocha, G; Rosset, C; Rubiño-Martín, J A; Rusholme, B; Salerno, E; Sandri, M; Savini, G; Scott, D; Spencer, L; Stolyarov, V; Sudiwala, R; Suur-Uski, A -S; Sygnet, J -F; Tauber, J A; Terenzi, L; Tibbs, C T; Toffolatti, L; Tomasi, M; Tristram, M; Valenziano, L; Van Tent, B; Varis, J; Vielva, P; Villa, F; Vittorio, N; Wade, L A; Wandelt, B D; Ysard, N; Yvon, D; Zacchei, A; Zonca, A

2013-01-01

133

Form Perception Stephen Grossberg1  

E-print Network

Form Perception Stephen Grossberg1 Department of Cognitive and Neural Systems Center for Adaptive Beacon Street, Boston, MA 02215, USA Running title: Form Perception Key Words: Object perception, Perceptual grouping, Surface perception, Figure-ground perception Invited article for the Encyclopedia

Spence, Harlan Ernest

134

Synchronous Reactive Systems Stephen Edwards  

E-print Network

Heterogeneity and Ptolemy Semantics of the SR Domain Scheduling the SR Domain 2 #12;STEPHEN EDWARDS Reactive Systems Heterogeneity and Ptolemy Semantics of the SR Domain Scheduling the SR Domain 7 #12 SYSTEMS Heterogeneity in Ptolemy Ptolemy: A system for rapid prototyping of heterogeneous systems

135

Stephen Hawking's Universe. Teacher's Guide.  

ERIC Educational Resources Information Center

This program guide is meant to help teachers assist their students in viewing the six-part public television series, "Stephen Hawking's Universe." The guide features program summaries that give background information and brief synopses of the programs; previewing activities that familiarize students with the subject; vocabulary that gives…

Thompson, Malcolm H.; Rameau, Jonathan D.

136

'Filling Bellies and Brains': The Educational and Political Thought of Frederick James Gould.  

ERIC Educational Resources Information Center

Focuses on the pioneering efforts concerning moral education and educational reform by British educator Frederick James Gould. Discusses the application of his socialistic ideas to further three causes: (1) socialism and secularism; (2) positivism; and (3) a form of middle class radicalism. (KDR)

Manton, Kevin

2001-01-01

137

Western scrub-jays conceal auditory information when competitors can hear but cannot see  

PubMed Central

Western scrub-jays (Aphelocoma californica) engage in a variety of cache-protection strategies to reduce the chances of cache theft by conspecifics. Many of these strategies revolve around reducing visual information to potential thieves. This study aimed to determine whether the jays also reduce auditory information during caching. Each jay was given the opportunity to cache food in two trays, one of which was filled with small pebbles that made considerable noise when cached in (‘noisy’ tray), whereas the other one contained soil that made little detectable noise when cached in (‘quiet’ tray). When the jays could be heard, but not seen, by a competitor, they cached proportionally less food items in the ‘noisy’ substrate than when they cached alone in the room, or when they could be seen and heard by competitors. These results suggest that western scrub-jays know when to conceal auditory information, namely when a competitor cannot see but can hear the caching event. PMID:19605383

Stulp, Gert; Emery, Nathan J.; Verhulst, Simon; Clayton, Nicola S.

2009-01-01

138

Circuit reconstruction tools today Stephen J Smith  

E-print Network

Circuit reconstruction tools today Stephen J Smith To understand how a brain processes information, Stanford University School of Medicine, Stanford, CA 94305, United States Corresponding author: Smith

Born, Richard

139

The Gould's Belt Very Large Array Survey. III. The Orion Region  

NASA Astrophysics Data System (ADS)

We present results from a high-sensitivity (60 ?Jy), large-scale (2.26 deg2) survey obtained with the Karl G. Jansky Very Large Array as part of the Gould's Belt Survey program. We detected 374 and 354 sources at 4.5 and 7.5 GHz, respectively. Of these, 148 are associated with previously known young stellar objects (YSOs). Another 86 sources previously unclassified at either optical or infrared wavelengths exhibit radio properties that are consistent with those of young stars. The overall properties of our sources at radio wavelengths such as their variability and radio to X-ray luminosity relation are consistent with previous results from the Gould's Belt Survey. Our detections provide target lists for follow-up Very Long Baseline Array radio observations to determine their distances as YSOs are located in regions of high nebulosity and extinction, making it difficult to measure optical parallaxes.

Kounkel, Marina; Hartmann, Lee; Loinard, Laurent; Mioduszewski, Amy J.; Dzib, Sergio A.; Ortiz-León, Gisela N.; Rodríguez, Luis F.; Pech, Gerardo; Rivera, Juana L.; Torres, Rosa M.; Boden, Andrew F.; Evans, Neal J., II; Briceño, Cesar; Tobin, John

2014-07-01

140

The Gould's Belt Very Large Array Survey III. The Orion region  

E-print Network

We present results from a high-sensitivity (60 $\\mu$Jy), large-scale (2.26 square degree) survey obtained with the Karl G. Jansky Very Large Array as part of the Gould's Belt Survey program. We detected 374 and 354 sources at 4.5 and 7.5 GHz, respectively. Of these, 148 are associated with previously known Young Stellar Objects (YSOs). Another 86 sources previously unclassified at either optical or infrared wavelengths exhibit radio properties that are consistent with those of young stars. The overall properties of our sources at radio wavelengths such as their variability and radio to X-ray luminosity relation are consistent with previous results from the Gould's Belt Survey. Our detections provide target lists for followup VLBA radio observations to determine their distances as YSOs are located in regions of high nebulosity and extinction, making it difficult to measure optical parallaxes.

Kounkel, Marina; Loinard, Laurent; Mioduszewski, Amy J; Dzib, Sergio A; Ortiz-León, Gisela N; Rodríguez, Luis F; Pech, Gerardo; Rivera, Juana L; Torres, Rosa M; Boden, Andrew F; Evans, Neal J II; Briceño, Cesar; Tobin, John

2014-01-01

141

Author! Author! Picture Artist: Stephen Gammell  

ERIC Educational Resources Information Center

This column presents a brief biography of illustrator Stephen Gammell, well-known for both his black-and-white and his brightly colored children's picture book art. Stephen Gammell has made a long career illustrating children's stories and poems. The first book he illustrated, "A Nutty Business" (written by Ida Chittum), was published in 1973 and…

Brodie, Carolyn S.

2005-01-01

142

Habitat model for the Florida Scrub Jay on John F. Kennedy Space Center  

NASA Technical Reports Server (NTRS)

The Florida Scrub Jay is endemic to Florida. The John F. Kennedy Space Center (KSC) provides habitat for one of the three largest populations of the Florida Scrub Jay. This threatened bird occupies scrub, slash pine flatwoods, disturbed scrub, and coastal strand on KSC. Densities of Florida Scrub Jays were shown to vary with habitat characteristics but not necessarily with vegetation type. Relationships between Florida Scrub Jay densities and habitat characteristics were used to develop a habitat model to provide a tool to compare alternative sites for new facilities and to quantify environmental impacts. This model is being tested using long term demographic studies of colorbanded Florida Scrub Jays. Optimal habitat predicted by the model has greater than or equal to 50 percent of the shrub canopy comprised of scrub oaks, 20-50 percent open space or scrub oak vegetation within 100 m of a ruderal edge, less than or equal to 15 percent pine canopy cover, a shrub height of 120-170 cm, and is greater than or equal to 100 m from a forest. This document reviews life history, social behavior, food, foraging habitat, cover requirements, characteristics of habitat on KSC, and habitat preferences of the Florida Scrub Jay. Construction of the model and its limitations are discussed.

Breininger, David R.

1992-01-01

143

Teaching the Classics: The Origin of Species as a Case Study  

NASA Astrophysics Data System (ADS)

Many (including the author) argue that reading the classics in the field should be part of a scientist's education. However, how you read the classics can be very different depending on whether you read them as a historian or as a practicing scientist. This point will be made by comparing two readings of Charles Darwin's Origin of Species, and by looking at the use that Stephen Jay Gould made of the history of science in his quest to promote his scientific ideas.

Ruse, Michael

2013-09-01

144

The NOMA of Yishayahu Leibowitz  

NASA Astrophysics Data System (ADS)

Stephen Jay Gould presented his position on science and religion - Non-Overlapping Magisteria (NOMA) - without justification. A detailed justification of the NOMA position can be found in the earlier work of scientist and philosopher Yishayahu Leibowitz; his work is especially interesting because it comes from a religious person. This paper summarizes Leibowitz's philosophical and theological position, and claims that his version of NOMA, and by implication similar versions of NOMA, are not applicable in science education.

Ben-Ari, Mordechai

145

Contrivances: Orchids and the Pandas Thumb  

NSDL National Science Digital Library

In this lesson, students read and discuss selected and edited excerpts from the essays of Stephen Jay Gould on the subject of contrivances. Students learn that many features of modern organisms reflect the structure of their ancestors in ways that are not adaptive. They also learn that one of the best indicators of evolution is not the examples of perfect adaptations, but of the relatively imperfect contrivances, structures modified and used for functions quite different than the ancestral functions of those same structures.

Nelson, Craig

146

What, If Anything, is a Zebra?  

NSDL National Science Digital Library

This lesson is based on an essay by Stephen Jay Gould and on the related reading guide. It addresses the issue of cladistics and some of the problems encountered in the science of Systematics. Students will learn that biological classification is intimately associated with evolution. They will also learn that there are many problems encountered in classification, providing evidence that the living world is a work in progress. Evolution provides an explanation for those problems.

Nelson, Craig

147

Professor Stephen W. Hawking's Site  

NSDL National Science Digital Library

Professor Stephen Hawking, the Cambridge University scholar and author of A Brief History of Time, has been called the greatest mind in physics since Albert Einstein. His Web Site (maintained by Graduate Assistant Chris Burgoyne) gives a description of his life, achievements, and his struggle with the physically debilitating disease ALS, or Lou Gehrig's Disease. The sites lecture links page gives descriptions of and downloadable Adobe Acrobat (.pdf) files of past lectures and colloquiums, while the news link page provides information on current events, such as the Professors recent sixtieth birthday. The site is easy to navigate and offers physics novices and experts interesting reading regarding the works and life a person whose name will certainly be remembered along side Einstein and Galileo.

2000-01-01

148

Gamma-ray Emission Properties from Mature Pulsars in the Galaxy and in the Gould Belt  

E-print Network

We study the $\\gamma$-ray emission properties of pulsars by using a new self-consistent outer gap model. The outer gap can exist in pulsars with age over million years old if the effect of magnetic inclination angle as well as the average properties of the outer gap are considered. The mature $\\gamma$-ray pulsars, whose ages are between 0.3 to 3 million years old, are able to move up to high galactic latitude. Moreover, their $\\gamma$-ray luminosity are weaker and their spectra are softer than those of younger $\\gamma$-ray pulsars in the galactic plane significantly. We use a Monte Carlo method to simulate the statistical properties of $\\gamma$-ray pulsars in the Galaxy as well as in the Gould Belt. We find that $\\gamma$-ray pulsars located at $\\mid b \\mid 5^{\\circ}$ have very different properties. High galactic latitude $\\gamma$-ray pulsars are dominated by mature pulsars with longer periods, weaker fluxes and softer spectra. If the pulsar birth rate in the Galaxy and the Gould Belt are $\\sim 10^{-2}yr^{-1}$ and $\\sim 2\\times 10^{-5}yr^{-1}$ respectively, there are 42 and 35 radio-quiet $\\gamma$-ray pulsars for $\\mid b \\mid 5^{\\circ}$ respectively. Radio-quiet $\\gamma$-ray pulsars from the Gould Belt are 2 and 13 for $\\mid b \\mid 5^{\\circ}$ respectively. We suggest that a good fraction of unidentified EGRET $\\gamma$-ray sources may be these radio-quiet $\\gamma$-ray pulsars. Furthermore $\\gamma$-ray pulsars located at $\\mid b \\mid > 5^{\\circ}$ satisfies $L_{\\gamma} \\propto L^{\\beta}_{sd}$ whereas $L_{\\gamma} \\propto L^{\\delta}_{sd}$ for $\\gamma$-ray pulsars in the galactic plane, where $\\beta \\sim 0.6$ and $\\delta \\sim 0.3$ respectively.

K. S. Cheng; L. Zhang; P. Leung; Z. J. Jiang

2004-03-09

149

Isolation and characterization of microsatellite loci in the western pearlshell mussel, Margaritifera falcata (Gould).  

PubMed

Ten microsatellite loci were isolated from the western pearlshell, Margaritifera falcata (Gould, 1850) and characterized in populations from Washington and Montana, USA. We also assessed eight microsatellite loci developed in M. margaritifera, two of which showed utility. Both of our test populations showed significant heterozygote deficiencies at most loci, consistent with a hermaphroditic life history. Populations differed markedly with respect to allelic richness, allele frequencies and numbers of identical multilocus genotypes. This panel of loci should prove useful in describing gene flow and genetic diversity patterns among M. falcata populations, information that should aid future conservation efforts. PMID:21564817

Chong, Jer Pin; Box, Jayne Brim; Nez, Donna A; Mock, Karen E

2009-05-01

150

The Gould Belt, the de Vaucouleurs-Dolidze belt, and the Orion arm  

NASA Astrophysics Data System (ADS)

Based on masers with measured trigonometric parallaxes, we have redetermined the spatial orientation parameters of the Local (Orion) arm. Using 23 sources (the Gould Belt objects were excluded), we have found that their spatial distribution can be approximated by a very narrow ellipsoid elongated in the direction L 1 = 77.1° ± 2.9° whose symmetry plane is inclined to the Galactic plane at an angle of 5.6° ± 0.2°. The longitude of the ascending node of the symmetry plane is . A newestimate for the pitch angle of the Local spiral arm has been obtained by an independent method: i = 12.9° ± 2.9°. Previously, a belt of young B stars, the de Vaucouleurs-Dolidze belt, was pointed out on the celestial sphere with parameters close to such an orientation. We have refined the spatial orientation parameters of this belt based on a homogeneous sample of protostars. The de Vaucouleurs-Dolidze belt can be identified with the Local arm, with the belt proper as a continuous band on the celestial sphere like the Gould Belt being absent due to the peculiarities of the spatial orientation of the Local arm. Using the entire sample of 119 Galactic masers, we have shown that the third axis of their position ellipsoid has no deviation from the direction to the Galactic pole: B 3 = 89.7° ± 0.1°.

Bobylev, V. V.; Bajkova, A. T.

2014-12-01

151

STEPHEN T. HOLMES, Ph.D. Office of Academic Initiatives  

E-print Network

Kill: An Empirical Investigation of Female Homicide Offenders in Kentucky 1979-1989 Holmes Vita - 1. Holmes and Stephen T. Holmes. Practical Suicide Investigations. Thousand Oaks, CA: Sage. 2003 Stephen T

Wu, Shin-Tson

152

The Spitzer Survey of Interstellar Clouds in the Gould Belt. II. The Cepheus Flare Observed with IRAC and MIPS  

Microsoft Academic Search

We present Spitzer Infrared Array Camera (IRAC; ~2 deg2) and Multiband Imaging Photometer for Spitzer (MIPS; ~8 deg2) observations of the Cepheus Flare, which is associated with the Gould Belt, at an approximate distance of ~300 pc. Around 6500 sources are detected in all four IRAC bands, of which ~900 have MIPS 24 mum detections. We identify 133 young stellar

Jason M. Kirk; Derek Ward-Thompson; James Di Francesco; Tyler L. Bourke; Neal J. Evans II; Bruno Merín; Lori E. Allen; Lucas A. Cieza; Michael M. Dunham; Paul Harvey; Tracy Huard; Jes K. Jørgensen; Jennifer F. Miller; Alberto Noriega-Crespo; Dawn Peterson; Tom P. Ray; Luisa M. Rebull

2009-01-01

153

DIFFERENTIAL EFFECTS OF A GREAT HORNED OWL DECOY ON THE BEHAVIOR OF JUVENILE AND ADULT GRAY JAYS  

Microsoft Academic Search

The effects of a Great Horned Owl (Bubo virginianus) decoy on the feeding behavior of adult and juvenile Gray Jays (Perisoreus canadensis) were tested by comparing the feeding activity of the jays in the presence of the decoy with that in the presence of a Ring-necked Duck mount and in the absence of other species' models. The owl decoy had

W. A. MONTEVECCHI; A. D. MACCARONE

154

A New Population Estimate for the Florida Scrub Jay on Merritt Island National Wildlife Refuge  

NASA Technical Reports Server (NTRS)

The variable circular plot method was used to sample avifauna within different vegetation types determined from aerial imagery. The Florida Scrub Jay (Aphelocoma coerulescens coerulescens) population was estimated to range between 1,415 and 3,603 birds. Approximately half of the scrub and slash pine habitat appeared to be unused by Florida Scrub Jay, probably because the slash pine cover was too dense or the oak cover was too sparse. Results from the study suggest that the entire state population may be much lower than believed because the size of two of the three largest populations may have been overestimated.

Breininger, David R.

1989-01-01

155

The JCMT Gould Belt Survey: SCUBA-2 observations of radiative feedback in NGC 1333  

NASA Astrophysics Data System (ADS)

We present observations of NGC 1333 from SCUBA-2 on the James Clerk Maxwell Telescope (JCMT), observed as a JCMT Gould Belt Survey pilot project during the shared risk campaign when the first of four arrays was installed at each of 450 and 850 ?m. Temperature maps are derived from 450 and 850 ?m ratios under the assumption of constant dust opacity spectral index ? = 1.8. Temperatures indicate that the dust in the northern (IRAS 6/8) region of NGC 1333 is hot, 20-40 K, due to heating by the B star SVS3, other young stars in the IR/optically visible cluster and embedded protostars. Other luminous protostars are also identified by temperature rises at the 17 arcsec resolution of the ratio maps (0.02 pc assuming a distance of 250 pc for Perseus). The extensive heating raises the possibility that the radiative feedback may lead to increased masses for the next generation of stars.

Hatchell, J.; Wilson, T.; Drabek, E.; Curtis, E.; Richer, J.; Nutter, D.; Di Francesco, J.; Ward-Thompson, D.; JCMT GBS Consortium

2013-02-01

156

Observation of Trivelpiece-Gould modes in a plasma-filled backward wave oscillator  

NASA Astrophysics Data System (ADS)

Trivelpiece-Gould modes (TG modes) have been observed with frequencies up to the background plasma frequency in a plasma-filled X-band backward wave oscillator. The TG mode emission was broadband with observed frequencies ranging from 2.6 GHz, the lower limit of our frequency diagnostic, to f(p), the plasma frequency. Mode competition between the TG modes and the X-band TM(01) mode prevailed when the background plasma density was below 6 x 10 exp 11/cu cm (f(p) about 7 GHz). At a critical background plasma density of n(cr) about 8 x 10 exp 11/cu cm (f(p) about 8 GHz), a sudden power enhancement appeared simultaneously in both X band and the TG modes. Power enhancements in S and J bands were up to 8 and 3 dB, respectively, with the X band enhanced up to a factor of 6.

Zhai, X.; Garate, E.; Prohaska, R.; Benford, Gregory

1992-06-01

157

An introduced generalist parasite, the sticktight flea (Echidnophaga gallinacea), and its pathology in the threatened Florida scrub-jay (Aphelocoma coerulescens).  

PubMed

The sticktight flea, (Echidnophaga gallinacea), a major pest of the domestic chicken (Gallus gallus) that can cause severe pathology or death if untreated, is rarely recorded in free-living avian species. Sticktight fleas, however, were observed on the federally threatened Florida scrub-jay (Aphelocoma coerulescens) in February 2004, in south central Florida. Of the 81 Florida scrub-jays (FSJs) sampled before the 2004 breeding season, 12 were infested, with from 1 to as many as 57 fleas. Subsequent survivorship and variation in health indices led us to conclude that the sticktight flea caused the death of several jays. Within 4 mo, 46% of sticktight flea-infested (INF) jays died, whereas in the nonflea-infested (NINF) jays, only 5.9% died. Adult INF birds lost body mass in the time since a previous capture compared with NINF jays, and mass gain was slowed in 1-yr-old INF jays. Hematocrit of INF jays was dramatically impacted, as low as 17%, and was negatively correlated with the extent of infestation. Leukocyte counts were highest in INF jays; however, plasma immunoglobulin levels were lowest. Physiological stress levels, measured using plasma corticosterone, increased more rapidly in INF jays than NINF jays and were positively correlated with heterophil/lymphocyte ratios. The impact of the sticktight flea on the federally threatened FSJ negates previous findings that sticktight fleas are benign in wild avian hosts. PMID:17152932

Boughton, R K; Atwell, J W; Schoech, S J

2006-10-01

158

Stephen D. Hursting, PhD, MPH  

Cancer.gov

Dr. Stephen Hursting is Professor and Chair of the Department of Nutritional Sciences at The University of Texas (UT) at Austin. He is also the McKean-Love Chair of Nutrition, Molecular and Cellular Sciences at the University of Texas and is Professor of Molecular Carcinogenesis at the UT MD Anderson Cancer Center. Dr.

159

Stephen Brooks Scoping Study meeting, April 2006  

E-print Network

, the others are in P6 C Ta Hg #12;Stephen Brooks Scoping Study meeting, April 2006 Compare: HARP Elements · P3 Study meeting, April 2006 Intermediate Z Element Needed · Previously, results for Ta, Hg and C · CStephen Brooks Scoping Study meeting, April 2006 Neutrino Factory Target Yield Considerations Click

McDonald, Kirk

160

A root Cheat Sheet A. Stephen Beach  

E-print Network

A root Cheat Sheet A. Stephen Beach June 9, 1998 Abstract This is a quick guide to root programming, but has no experience with root or C++. Its goal is to get the user up and running quickly? . . . . . . . . . . . . . . . . . . . . . . . 4 2 Basic Questions 4 2.1 What is root

Gilfoyle, Jerry

161

Stephen Jenks Electrical Engineering and Computer Science  

E-print Network

expensive computers with limited access Parallel Computing is Becoming: Ubiquitous Cheap Essential dependences satisfied CPUs see common address space #12; Threads POSIX Threads Windows Threads OpenMP User 4x16-byte-wide rings @ 96 bytes per clock cycle 4/16/2008Stephen Jenks 10 From IBM Cell Broadband

Shinozuka, Masanobu

162

Interruptions improve choice performance in gray jays: prolonged information processing versus minimization of costly errors.  

PubMed

Under the assumption that selection favors minimization of costly errors, erroneous choice may be common when its fitness cost is low. According to an adaptive-choice model, this cost depends on the rate at which an animal encounters the choice: the higher this rate, the smaller the cost of choosing a less valuable option. Errors should thus be more common when interruptions to foraging are shorter. A previous experiment supported this prediction: gray jays, Perisoreus canadensis, were more error prone when subjected to shorter delays to access to food rewards. This pattern, though, is also predicted by an attentional-constraints model. Because the subjects were able to inspect the rewards during delays, their improved performance when subjected to longer delays could have been a byproduct of the experimentally prolonged opportunity for information processing. To evaluate this possibility, a follow-up experiment manipulated both delay to access and whether rewards could be inspected during delays. Depriving jays of the opportunity to inspect rewards (using opaque lids) induced only a small, nonsignificant increase in error rate. This effect was independent of length of delay and so the jays' improved performance when subjected to longer delays was not simply a byproduct of prolonged information processing. More definitively, even when the jays were prevented from inspecting rewards during delays, their performance improved when subjected to longer delays. The findings are thus consistent with the adaptive-choice model. PMID:12461598

Waite, Thomas A

2002-12-01

163

Predator-induced plasticity in nest visitation rates in the Siberian jay (Perisoreus infaustus)  

Microsoft Academic Search

Bird nestlings may be at risk not only from starvation but also from predators attracted to the nest by parental feeding visits. Hence, parents could trade reduced visitation rates for a lower predation risk. Here, through field data and an experiment, we show plasticity in daily patterns of nest visitation in the Siberian jay, Perisoreus infaustus, in response to predator

Sönke Eggers; Michael Griesser; Jan Ekmana

2005-01-01

164

Context-dependent violations of rational choice in honeybees ( Apis mellifera ) and gray jays ( Perisoreus canadensis )  

Microsoft Academic Search

Contrary to the theory of rational choice, adding an alternative to a set of available options often affects people's judgement of the preexisting options. Here, we show that honeybees (Apis mellifera) and gray jays (Perisoreus canadensis) are also influenced by the addition of an option to a choice set (i.e., by a change in local context). Like humans, our subjects

Sharoni Shafir; Tom A. Waite; Brian H. Smith

2002-01-01

165

Numerical Evidence that the Motion of Pluto is Chaotic Gerald Jay Sussman; Jack Wisdom  

E-print Network

Numerical Evidence that the Motion of Pluto is Chaotic Gerald Jay Sussman; Jack Wisdom Science, New@jstor.org. http://www.jstor.org Wed Oct 17 16:36:12 2007 #12;Numerical Evidence That the Motion of Pluto for 845 million years. This integration indicates that the long-term mo- tion of the planet Pluto

Wisdom, Jack

166

Fisher Ames and Political Judgment: Reason, Passion, and Vehement Style in the Jay Treaty Speech.  

ERIC Educational Resources Information Center

Analyzes Fisher Ames' fiery speech of 1796 on the Jay Treaty. Demonstrates the influence of Scottish enlightenment thinkers (particularly in moral sense philosophy and faculty psychology) on Ames and his rhetoric. Demonstrates how Ames made a compelling case to shift the standard of political judgment from reason to passion. (SR)

Farrell, James M.

1990-01-01

167

Carbon K-edge XANES spectromicroscopy of natural graphite Jay A Brandesa,*, George D. Codyb  

E-print Network

Carbon K-edge XANES spectromicroscopy of natural graphite Jay A Brandesa,*, George D. Codyb composition of graphite within natural samples. Highly crystal- line natural graphite had spectra indistinguishable from highly ordered pyrolytic graphite, but contained a wide variety of internal structures

Long, Bernard

168

Mitigation of Sea Ice Contamination in QuikSCAT Wind Retrieval Weston Jay Hullinger  

E-print Network

Mitigation of Sea Ice Contamination in QuikSCAT Wind Retrieval Weston Jay Hullinger A thesis All Rights Reserved #12;#12;ABSTRACT Mitigation of Sea Ice Contamination in QuikSCAT Wind Retrieval. However in the polar oceans, the presence of sea ice in or near the measurement footprint can adversely

Long, David G.

169

Parasites and Parasitism (CAMB 549) Course organizer: Jay Farrell ( farrellj@vet.upenn.edu) 217 Rosenthal  

E-print Network

Parasites and Parasitism (CAMB 549) Course organizer: Jay Farrell ( farrellj@vet.upenn.edu) 217 and control of Chagas disease (Levy) 9/28 -- Parasite invasion/egress (Greenbaum) 9/30 -- Filariasis: balancing host protection and immunopathology (Nair) 10/14 -- Innate immunity to helminth parasites

Plotkin, Joshua B.

170

Parasites and Parasitism (CAMB 549) Course organizer: Jay Farrell ( farrellj@vet.upenn.edu) 207 Rosenthal  

E-print Network

Parasites and Parasitism (CAMB 549) Course organizer: Jay Farrell ( farrellj@vet.upenn.edu) 207 and Plasmodium (Roos) 9/29 -- Helminth biology (Beiting) 10/1 -- Filariasis pathogenesis (Lok) 10/4 ­ Parasite protection and immunopathology (Nair) 10/15 -- Innate immunity to helminth parasites (Artis) 10

Plotkin, Joshua B.

171

Inequality and the Dayton Tax-Budget Plan Jay Coggins and Dane Smith  

E-print Network

and Dane Smith Inequality and the Dayton Tax-Budget Plan #12;% growth in income, bottom quintile, 1979 Coggins and Dane Smith Inequality and the Dayton Tax-Budget Plan #12;% growth in income, bottom 99%, 1979Inequality and the Dayton Tax-Budget Plan Jay Coggins and Dane Smith Department of Applied

Weiblen, George D

172

John Jay College Confidential Informant Study Reveals Weaknesses in New Jersey Police Practices  

E-print Network

John Jay College Confidential Informant Study Reveals Weaknesses in New Jersey Police Practices's criminal justice system NEWARK, NJ, June 27, 2010 ­ The American Civil Liberties Union of New Jersey Justice faculty who investigated how closely the use of confidential informants conformed to New Jersey

Rosen, Jay

173

Heat Related Morbidity: Phoenix, Arizona (2001 2006) Donna A. Hartz*, Jay S. Golden**, Anthony Brazel*  

E-print Network

Heat Related Morbidity: Phoenix, Arizona (2001 ­ 2006) Donna A. Hartz*, Jay S. Golden**, Anthony-2006) of heat-related dispatches through the Phoenix Fire Department regional dispatch center were examined for temporal, climatic and other non-spatial influences contributing to high- heat-related medical dispatch

Hall, Sharon J.

174

A Lighting Model for Fast Rendering of Forest Ecosystems Robert Geist Jay Steele  

E-print Network

A Lighting Model for Fast Rendering of Forest Ecosystems Robert Geist Jay Steele Clemson University, and absorptance parameters are taken from measurements of real plants. The lighting model is solved as a pre Architecture--Graphics Processors 1 INTRODUCTION Real-time rendering of large scale, high-density, plant

Westall, James M.

175

Phytate phosphorus utilization in the growing pig A. POINTILLART, Marie-Elise JAY, Nicole FONTAINE  

E-print Network

Phytate phosphorus utilization in the growing pig A. POINTILLART, Marie-Elise JAY, Nicole FONTAINE LN.R.A., Station de Recherche.; de Nutrition, 78350 Jouy-en-Josns At least 2/3 of the phosphorus consumed by the pig are phytates. To analyse the interrelationships between phytate phosphorus

Paris-Sud XI, Université de

176

Re-caching by Western Scrub-Jays (Aphelocoma californica) Cannot Be Attributed to Stress  

PubMed Central

Western scrub-jays (Aphelocoma californica) live double lives, storing food for the future while raiding the stores of other birds. One tactic scrub-jays employ to protect stores is “re-caching”—relocating caches out of sight of would-be thieves. Recent computational modelling work suggests that re-caching might be mediated not by complex cognition, but by a combination of memory failure and stress. The “Stress Model” asserts that re-caching is a manifestation of a general drive to cache, rather than a desire to protect existing stores. Here, we present evidence strongly contradicting the central assumption of these models: that stress drives caching, irrespective of social context. In Experiment (i), we replicate the finding that scrub-jays preferentially relocate food they were watched hiding. In Experiment (ii) we find no evidence that stress increases caching. In light of our results, we argue that the Stress Model cannot account for scrub-jay re-caching. PMID:23326366

Thom, James M.; Clayton, Nicola S.

2013-01-01

177

Mass Mortality of the Mountain Chicken Frog Jay King, DVM, MS  

E-print Network

Mass Mortality of the Mountain Chicken Frog Jay King, DVM, MS The Commonwealth of Dominica terrestrial frog commonly known as the crapaud or mountain chicken frog (Figure 1). In the past, this species receiving reports from the South- ern Forest Range of sick and dead frogs (Figure 2). These reports

178

The Contradictions of Contemporary Culture: A Tribute to Norman Jay Levitt (1943-2009)  

ERIC Educational Resources Information Center

Norman Jay Levitt was the author's good friend, collaborator, and co-author. He was--above, before, and after politics--an honest inquirer. His socio-cultural views evolved continuously. Levitt, truth-seeker and liberal, was impatient with, and a devastating critic of, the political correctness and--even worse--the philosophic triviality that…

Gross, Paul R.

2012-01-01

179

Static Friction Coefficient Is Not a Material Constant Oded Ben-David and Jay Fineberg  

E-print Network

Static Friction Coefficient Is Not a Material Constant Oded Ben-David and Jay Fineberg The Racah; published 20 June 2011) The static friction coefficient between two materials is considered to be a material configuration. Large variations in both the friction coefficient and consequent stress drop are tightly linked

Fineberg, Jay

180

The Secret Gripes of Professor Klein: An AP-IB By Jay Mathews  

E-print Network

The Secret Gripes of Professor Klein: An AP-IB Drama By Jay Mathews Washington Post Staff Writer's analysis of AP and IB did not turn out the way either of them hoped. On June 4, Klein submitted his report on two courses, AP Calculus AB and IB Mathematics SL. Klein's analysis of AP and IB math was more

Klein, David

181

Oscillations in Rapid Fracture Ariel Livne, Oded Ben-David, and Jay Fineberg  

E-print Network

21 March 2007) Experiments of pure tensile fracture in thin brittle gels reveal a new dynamicOscillations in Rapid Fracture Ariel Livne, Oded Ben-David, and Jay Fineberg The Racah Institute speed. Until VC, crack dynamics are well described by linear elastic fracture mechanics (LEFM

Fineberg, Jay

182

Microbranching instability and the dynamic fracture of brittle materials Eran Sharon and Jay Fineberg  

E-print Network

Microbranching instability and the dynamic fracture of brittle materials Eran Sharon and Jay fracture of the brittle plastic, PMMA. The results suggest a view of the fracture process that is based in the dynamic fracture of amorphous, brittle materials may be understood in this picture. Among

Fineberg, Jay

183

The Dynamics of Fast Fracture** By Eran Sharon* and Jay Fineberg  

E-print Network

-dominated picture of dynamic fracture in brittle materials has arisen. Much of our insight into these processes Fracture A new instability-dominated picture of dynamic fracture in brittle materials has arisenThe Dynamics of Fast Fracture** By Eran Sharon* and Jay Fineberg What determines the strength

Fineberg, Jay

184

Current Status of the AMOEBA Polarizable Force Field Jay W. Ponder and Chuanjie Wu  

E-print Network

#12;Current Status of the AMOEBA Polarizable Force Field Jay W. Ponder and Chuanjie Wu Department that should allow more accurate description of molecular properties. The recently introduced AMOEBA force, it has only received relatively limited validation, which we address here. We show that the AMOEBA force

Ponder, Jay

185

Temperature and Pressure Dependence of the AMOEBA Water Model Pengyu Ren and Jay W. Ponder*  

E-print Network

Temperature and Pressure Dependence of the AMOEBA Water Model Pengyu Ren and Jay W. Ponder of the previously developed polarizable atomic-multipole-based AMOEBA water potential is explored. The energetic at various temperatures ranging from 248 K to 360 K and pressures up to 5000 atm. The AMOEBA model, derived

Ponder, Jay

186

Jay Melosh was right! Earthquake acoustics can trigger fault rupture  

NASA Astrophysics Data System (ADS)

We insert dynamic fragmentation into Jay Melosh’s acoustic fluidization hypothesis as the mechanism for providing sufficient energy in a granular material to cause it to become a dense granular flow with low strength and resistance. A defect in previous analyses of acoustic fluidization was in treating it only as pressure-wave propagation, and finding that too much energy was required to maintain collisional grain flow. This defect vanishes if both pressure and shear waves are considered, and fluidization becomes much less energy demanding as induced transient Mohr-Coulomb frictional slip in a dense granular flow. Our earlier analyses of dynamic fragmentation lacked detail of the mechanism by which the effect of fracturing an individual grain was transmitted to the wider granular mass. This is now seen as release of elastic-strain energy when a grain’s elastic limit is reached and it fails by brittle fracture. Suddenly released elastic-strain energy is propagated through the rest of the grain mass as elastic-strain energy (“rock noise” and seismic energy). Its passing between grains at contacts results in fluctuations of existing grain-contact forces. As shear and normal components of each contact force vary independently, their ratio also varies. Whenever the ratio of shear to normal forces at a contact exceeds its static friction coefficient, the contact slips; a simple application of the Mohr-Coulomb failure criterion (under ambient pore-fluid pressure and any cohesion). The closer that static forces are to inducing motion in the grain mass (general Mohr-Coulomb failure), the smaller the transient changes are needed to induce relative grain motion. Hence, the energy requirements of the transient forces need not be large, and decrease as the externally applied static force increases. The net effect of induced transient slip between grains that would not otherwise have slipped is a cumulative grain-mass deformation at lower overall load than would otherwise be required. That is, the acoustics of grain breakage can induce general shear in a grain mass subject to a shear stress otherwise insufficient to induce shear. Grain-contact forces and within-grain stresses are highly variable from grain to grain, even in a static grain mass. If some grains are already stressed to close to their elastic limit, they may break during the transmission of transient elastic strain (i.e. when the Griffith brittle-failure criterion is met), suddenly releasing elastic-strain energy to the wider grain mass. The energy is rich in large amplitudes at short wavelengths to induce large rates of force change at grain contacts, and the likelihood of large slip. Since large shear rates induce high grain stresses, this process is self-reinforcing. The reduction in shear strength is proportional to grain-mass fraction simultaneously fragmenting, and the wave amplitude of the elastic strain energy released. This mechanism operates independently of pore-fluid pressure when brittle grain breakages are occurring. Save for the additional production of fractured grains, the effect of a small fragmenting-grain fraction is indistinguishable from that of a very substantial pore pressure; thus, in the presence of evidence of grain breakage, fluid pressure is undeterminable.

McSaveney, M. J.; Davies, T. R.

2009-12-01

187

Gene profile and response to treatment, Stephen FodorSite: DNA Interactive (www.dnai.org)  

NSDL National Science Digital Library

Interviewee: Stephen Fodor DNAi Location:Applications>Genes and medicine>genetic profiling>Stephen Fodor Gene profile and therapy Stephen Fodor talks about how an individual's gene expression profile can help determine what therapies might work best.

2008-03-26

188

GeneChip® technology, Stephen FodorSite: DNA Interactive (www.dnai.org)  

NSDL National Science Digital Library

Interviewee: Stephen Fodor DNAi Location:Applications>Genes and medicine>genetic profiling>Stephen Fodor GeneChip® technology Stephen Fodor talks about bringing the knowledge gathered by the Human Genome Project to the individual researcher.

2008-03-26

189

VizieR Online Data Catalog: Uranometria Argentina catalog of bright southern stars (Gould, 1879)  

NASA Astrophysics Data System (ADS)

In 1879 Benjamin Apthorp Gould published in Buenos Aires, Argentina, the Uranometria Argentina catalog of 7756 stars south of declination +10 degrees. This included all those stars he considered magnitude 7 or brighter and some fainter stars which are close companions to brighter stars or to each other and have combined magnitude 7 or brighter. Star positions are in 1875 coordinates, and constellation boundaries also in 1875 coordinates were defined within the aforementioned declination range. With only a few small changes these were incorporated into the boundaries adopted by the IAU in 1930 and subsequently universally accepted. In terms of accurate photoelectric magnitude measurements the Uranometria Argentina is nearly complete to magnitude 6.5 in its declination range. In each constellation the individual stars considered to be magnitude 7 and brighter were numbered in sequence of increasing right ascension in 1875 coordinates, except that in a few cases this sequence was somewhat adjusted so that stars close together could be listed on adjacent lines of text. The numbering system is analogous to that in the Flamsteed Catalogus Brittanicus and now widely used. Star numbers from the Uranometria Argentina rarely appear in the 21st century despite the potential utility of their use. They were included in the American Ephemeris and Nautical Almanac until 1978, and in the FK5 catalog until 1999, always with the letter G following the number in the Uranometria Argentina catalog. This serves to distinguish Flamsteed numbers with no following letters from Gould numbers, and is utilized in this presentation and recommended for general use. The file catalog.dat includes every star in the original Uranometria Argentina. In the original the constellations were presented in sequence of increasing distance from the south pole and numbered accordingly. For the convenience of 21st century astronomers the constellations are presented here by alphabetical sequence in constellation name and the stars in each constellation in the same sequence as in the original. A separate file notes.txt includes a large number of notes for individual stars and for groups of stars recognized in the original catalog as belonging together. Each note is referenced by an asterisk * in the file catalog.dat. Columns 43-63 provide J2000 coordinates and cross identifications from the Flamsteed, HD, and SAO catalogs for the stars and have been added by the author of this data set. Columns 82-154 have been copied verbatim from the Uranometria Argentina catalogue, except that where asterisks are shown errors in the original printed catalogue have been corrected and the originally published values are stated in the notes. Two publications state corrections to the printed Uranometria Argentina. These are by B.A. Gould, Astronomische Nachrichten 116, 379-382 (1887AN....116..379G), and by T. W. Backhouse, Astronomical Journal 12, 112 (1892AJ.....12Q.112B). All of these, and a few others, mostly typographical misprints found by the present author, are presented in this digital version. (5 data files).

Gould, B. G.

2010-07-01

190

Avian Theory of Mind and counter espionage by food-caching western scrub-jays (Aphelocoma californica)  

Microsoft Academic Search

Food-caching scrub-jays hide food for future consumption and rely on memory to recover their caches at a later date. These caches are susceptible to pilfering by other individuals, however. Consequently, jays engage in a number of counter-strategies to protect their hidden items, caching most of them behind barriers, or using shade and distance as a way of reducing what the

Joanna M. Dally; Nathan J. Emery; Nicola S. Clayton

2010-01-01

191

Algorithms for Symbolic Polynomials Stephen M. Watt  

E-print Network

- y2m = (xn + ym ) (xn - ym ) xn2 +3n - y2m = xn(n+3)/2 + ym xn(n+3)/2 - ym · Then extend to symbolicAlgorithms for Symbolic Polynomials Stephen M. Watt ORCCA, University of Western Ontario, London of ring operations. OK: xm2 +n - xn , (xm + 1) � (xn - 1) Not OK: n i=0 xi , (xn + 1)m · Arise frequently

Watt, Stephen M.

192

Neurogenesis in the mossy chiton, Mopalia muscosa (Gould) (Polyplacophora): evidence against molluscan metamerism.  

PubMed

Neurogenesis in the chiton Mopalia muscosa (Gould, 1846) was investigated by applying differential interference contrast microscopy, semithin serial sectioning combined with reconstruction techniques, as well as confocal laser scanning microscopy for the detection of fluorescence-conjugated antibodies against serotonin and FMRFamide. The ontogeny of serotonergic nervous structures starts with cells of the apical organ followed by those of the cerebral commissure, whereas the serotonergic prototroch innervation, pedal system, and the lateral cords develop later. In addition, there are eight symmetrically arranged serotonergic sensory cells in the dorsal pretrochal area of the larva. FMRFamide-positive neural elements include the cerebral commissure, specific "ampullary" sensory cells in the pretrochal region, as well as the larval lateral and pedal system. In the early juvenile the cerebral system no longer stains with either of the two antibodies and the pedal system lacks anti-FMRFamide immunoreactivity. Outgroup comparison with all other molluscan classes and related phyla suggests that the cord-like, nonganglionized cerebral system in the Polyplacophora is a reduced condition rather than a primitive molluscan condition. The immunosensitivity of the pedal commissures develops from posterior to anterior, suggesting independent serial repetition rather than annelid-like conditions and there is no trace of true segmentation during nervous system development. Polyplacophoran neurogenesis and all other available data on the subject contradict the idea of a segmented molluscan stem species. PMID:12112126

Friedrich, Stefan; Wanninger, Andreas; Brückner, Martin; Haszprunar, Gerhard

2002-08-01

193

The Nature of the Gould Belt from a Fractal Analysis of its Stellar Population  

E-print Network

The Gould Belt (GB) is a system of gas and young, bright stars distributed along a plane that is inclined with respect to the main plane of the Milky Way. Observational evidence suggests that the GB is our closest star formation complex, but its true nature and origin remain rather controversial. In this work we analyze the fractal structure of the stellar component of the GB. In order to do this, we tailor and apply an algorithm that estimates the fractal dimension in a precise and accurate way, avoiding both boundary and small data set problems. We find that early OB stars (of spectral types earlier than B4) in the GB have a fractal dimension very similar to that of the gas clouds in our Galaxy. On the contrary, stars in the GB of later spectral types show a larger fractal dimension, similar to that found for OB stars of both age groups in the local Galactic disk (LGD). This result seems to indicate that while the younger OB stars in the GB preserve the memory of the spatial structure of the cloud where they were born, older stars are distributed following a similar morphology as that found for the LGD stars. The possible causes for these differences are discussed.

N. Sanchez; E. J. Alfaro; F. Elias; A. J. Delgado; J. Cabrera-Cano

2007-08-27

194

The Gould Belt, the de Vaucouleurs-Dolidze Belt, and the Orion Arm  

E-print Network

Based on masers with measured trigonometric parallaxes, we have redetermined the spatial orientation parameters of the Local (Orion) arm. Using 23 sources (the Gould Belt objects were excluded), we have found that their spatial distribution can be approximated by a very narrow ellipsoid elongated in the direction L_1=77.1+/-2.9^o whose symmetry plane is inclined to the Galactic plane at an angle of 5.6+/-0.2^o. The longitude of the ascending node of the symmetry plane is l_\\Omega=70+/-3^o. A new estimate for the pitch angle of the Local spiral arm has been obtained by an independent method: i=12.9+/-2.9^o. Previously, a belt of young B stars, the de Vaucouleurs.Dolidze belt, was pointed out on the celestial sphere with parameters close to such an orientation. We have refined the spatial orientation parameters of this belt based on a homogeneous sample of protostars. The de Vaucouleurs.Dolidze belt can be identified with the Local arm, with the belt proper as a continuous band on the celestial sphere like the ...

Bobylev, V V

2014-01-01

195

Why is brood reduction in Florida scrub-jays higher in suburban than in wildland habitats?  

Microsoft Academic Search

In a population of Florida scrub-jays, Aphelocoma coerulescens (Bosc, 1795), in a suburban scrub habitat, partial brood loss is much more common (averaging about 30% of nestlings from successful nests) than in a natural habitat (averaging about 5%). We hypothesized that this partial brood loss was attributable to starvation of last-hatched nestlings (i.e., brood reduction), and that large differences in

Matthew D. Shawkey; Reed Bowman; Glen E. Woolfenden

2004-01-01

196

SUAAVE: Combining Aerial Robots and Wireless Networking Stephen Camerono  

E-print Network

the WINES wireless networking initiative to consider issues of multiple aerial vehicles communicating has four main scientific themes: (i) wireless networking as applied in a controllable free-space transSUAAVE: Combining Aerial Robots and Wireless Networking Stephen Camerono Stephen Hailesl Simon

Martin, Ralph R.

197

Kindness in the Art Classroom: Kind Thoughts on Stephen Rowland  

ERIC Educational Resources Information Center

This article is a response to Stephen Rowland's article, "Kindness," which appeared in "London Review of Education," November 2009. Much to my amazement, Stephen Rowland's article was the only one I found when I did a global database search on "kindness in education". I had thought that I would find reams of information in the databases on the…

Lampert, Nancy

2011-01-01

198

Ms Sylvia Stephen, MSc. Human Nutrition Unit Manager  

E-print Network

Ms Sylvia Stephen, MSc. Human Nutrition Unit Manager 01224 438607 sylvia.stephen@abdn.ac.uk Contact us: The Rowett Institute of Nutrition and Health offers a bespoke service to the food industry We also offer guidance and advice on when a nutritional claim can be made on your product Back of pack

Levi, Ran

199

Stephen F. Austin State University Online Masters in Special Education  

E-print Network

1 Stephen F. Austin State University Online Masters in Special Education Program Handbook (3 Program Options) Accredited, Accessible, and Affordable College of Education Department of Human Services Special Education Program 2011- 2012 #12;2 Stephen F. Austin State University College of Education

Long, Nicholas

200

Garbage Collecting the World Wide Web Stephen M. Watt  

E-print Network

Garbage Collecting the World Wide Web Stephen M. Watt Western University London, Ontario, Canada N6A 5B7 Stephen.Watt@uwo.ca Abstract The World Wide Web has grown over the past decade and a half from to the world wide web and present the results of some experiments. This presentation is based on joint work

Watt, Stephen M.

201

Dr. Stephen B. Lovejoy Stephen B. Lovejoy is the Associate Director of Programs for Michigan State University  

E-print Network

Dr. Stephen B. Lovejoy Stephen B. Lovejoy is the Associate Director of Programs for Michigan State that connect campus-based departments with stakeholders and county offices. Dr. Lovejoy works to build and enhance programming in rural, suburban and metropolitan Michigan. Dr. Lovejoy came to MSU in 2006 from

202

The JCMT Legacy Survey of the Gould Belt: a first look at Taurus with HARP  

NASA Astrophysics Data System (ADS)

As part of a James Clerk Maxwell Telescope (JCMT) Legacy Survey of star formation in the Gould Belt, we present early science results for Taurus. CO J = 3 -2 maps have been secured along the north-west ridge and bowl, collectively known as L 1495, along with deep 13CO and C18O J = 3 -2 maps in two subregions. With these data, we search for molecular outflows, and use the distribution of flows, Herbig-Haro (HH) objects and shocked H2 line-emission features, together with the population of young stars, protostellar cores and starless condensations to map star formation across this extensive region. In total, 21 outflows are identified. It is clear that the bowl is more evolved than the ridge, harbouring a greater population of T Tauri stars and a more diffuse, more turbulent ambient medium. By comparison, the ridge contains a much younger, less widely distributed population of protostars which, in turn, is associated with a greater number of molecular outflows. We estimate the ratio of the numbers of pre-stellar to protostellar cores in L 1495 to be ~1.3-2.3, and of gravitationally unbound starless cores to (gravitationally bound) pre-stellar cores to be ~1. If we take previous estimates of the protostellar lifetime of ~5 × 105 yr, this indicates a pre-stellar lifetime of 9(+/-3) × 105 yr. From the number of outflows, we also crudely estimate the star formation efficiency in L 1495, finding it to be compatible with a canonical value of 10-15 per cent. We note that molecular outflow-driving sources have redder near-infrared colours than their HH jet-driving counterparts. We also find that the smaller, denser cores are associated with the more massive outflows, as one might expect if mass build-up in the flow increases with the collapse and contraction of the protostellar envelope.

Davis, C. J.; Chrysostomou, A.; Hatchell, J.; Wouterloot, J. G. A.; Buckle, J. V.; Nutter, D.; Fich, M.; Brunt, C.; Butner, H.; Cavanagh, B.; Curtis, E. I.; Duarte-Cabral, A.; di Francesco, J.; Etxaluze, M.; Friberg, P.; Friesen, R.; Fuller, G. A.; Graves, S.; Greaves, J. S.; Hogerheijde, M. R.; Johnstone, D.; Matthews, B.; Matthews, H.; Rawlings, J. M. C.; Richer, J. S.; Roberts, J.; Sadavoy, S.; Simpson, R. J.; Tothill, N.; Tsamis, Y.; Viti, S.; Ward-Thompson, D.; White, Glenn J.; Yates, J.

2010-06-01

203

The JCMT Gould Belt Survey: Evidence for radiative heating in Serpens MWC 297 and its influence on local star formation  

E-print Network

We present SCUBA-2 450\\mu m and 850\\mu m observations of the Serpens MWC 297 region, part of the JCMT Gould Belt Survey of nearby star-forming regions. Simulations suggest that radiative feedback influences the star-formation process and we investigate observational evidence for this by constructing temperature maps. Maps are derived from the ratio of SCUBA-2 fluxes and a two component model of the JCMT beam for a fixed dust opacity spectral index of beta = 1.8. Within 40 of the B1.5Ve Herbig star MWC 297, the submillimetre fluxes are contaminated by free-free emission with a spectral index of 1.03\\pm0.02, consistent with an ultra-compact HII region and polar winds/jets. Contamination accounts for 73\\pm5 per cent and 82\\pm4 per cent of peak flux at 450\\mu m and 850\\mu m respectively. The residual thermal disk of the star is almost undetectable at these wavelengths. Young Stellar Objects are confirmed where SCUBA-2 850\\mu m clumps identified by the fellwalker algorithm coincide with Spitzer Gould Belt Survey d...

Rumble, D; Gutermuth, R A; Kirk, H; Buckle, J; Beaulieu, S F; Berry, D S; Broekhoven-Fiene, H; Currie, M J; Fich, M; Jenness, T; Johnstone, D; Mottram, J C; Nutter, D; Pattle, K; Pineda, J E; Quinn, C; Salji, C; Tisi, S; Walker-Smith, S; Di Francesco, J; Hogerheijde, M R; Ward-Thompson, D; Allen, L E; Cieza, L A; Dunham, M M; Harvey, P M; Stapelfeldt, K R; Bastien, P; Butner, H; Chen, M; Chrysostomou, A; Coude, S; Davis, C J; Drabek-Maunder, E; Duarte-Cabral, A; Fiege, J; Friberg, P; Friesen, R; Fuller, G A; Graves, S; Greaves, J; Gregson, J; Holland, W; Joncas, G; Kirk, J M; Knee, L B G; Mairs, S; Marsh, K; Matthews, B C; Moriarty-Schieven, G; Rawlings, J; Richer, J; Robertson, D; Rosolowsky, E; Sadavoy, S; Thomas, H; Tothill, N; Viti, S; White, G J; Wilson, C D; Wouterloot, J; Yates, J; Zhu, M

2014-01-01

204

AN ELECTROMAGNETIC INVERSE PROBLEM IN CHIRAL STEPHEN R. MCDOWALL  

E-print Network

AN ELECTROMAGNETIC INVERSE PROBLEM IN CHIRAL MEDIA STEPHEN R. MCDOWALL Abstract. We consider determines the electromagnetic parameters, namely the conductivity, electric permittivity, magnetic to the electromagnetic fields, the equations governing these fields change from a single second order elliptic partial

McDowall, Stephen

205

Representing Numbers Using Fibonacci Variants Stephen K. Lucas  

E-print Network

Representing Numbers Using Fibonacci Variants Stephen K. Lucas Department of Mathematics & Statistics James Madison University Harrisonburg, VA 22807 September 2014 1 Introduction The Fibonacci a journal (The Fibonacci Quarterly) dedicated to them. Many books have been written about them, including

Lucas, Stephen

206

77 FR 10533 - Stephen L. Marks: Debarment Order  

Federal Register 2010, 2011, 2012, 2013, 2014

...Stephen L. Marks: Debarment Order AGENCY: Food and Drug Administration, HHS. [[Page...SUMMARY: The Food and Drug Administration (FDA) is issuing an order under the Federal Food, Drug, and Cosmetic Act (the...

2012-02-22

207

books & arts Stephen hawking: a BiOgraphy  

E-print Network

books & arts On our bookshelf Stephen hawking: a BiOgraphy By kriStine LarSen Prometheus: 2007. 215 with Roger Penrose and others, set out the modern theory of black holes. In the singularity theorems

Loss, Daniel

208

The ACORN Multi-Agent System Stephen Marsh  

E-print Network

The ACORN Multi-Agent System Stephen Marsh Institute for Information Technology National Research Council Ottawa, ON, K1A 0R6, Canada steve.marsh@nrc.ca Ali A. Ghorbani and Virendra C. Bhavsar Faculty

Ghorbani, Ali

209

SA Innovation Lecture Stephen Shapiro - Duration: 1:21:17.  

NASA Video Gallery

Stephen Shapiro, one of Americaâ??s foremost innovation advisers, joined us on January 19th to show us how innovation isnâ??t just about generating occasional new ideas; itâ??s about making it a re...

210

STS-114 Crew Interview: Stephen Robinson  

NASA Astrophysics Data System (ADS)

Stephen Robinson, Mission Specialist 2 (MS2), of the STS-114 space mission is seen during a prelaunch interview. He discusses his duties as flight engineer, Extravehicular Activity 2 (EVA 2) spacewalker, and medical officer. Robinson answers questions about his interests in spaceflight and the specific goals of the mission. He identifies this mission as the International Space Station Resupply Mission because supplies and experiments are brought to the International Space Station and Expedition 6 crew of Commander Kenneth Bowersox, and Flight Engineers Donald Pettit and Nikolai Budarin are returning to Earth. Lastly, he talks about the docking of the Space Shuttle Atlantis with the International Space Station. He looks forward to this experience in space.

2003-01-01

211

How GeneChip® was developed (Part I), Stephen FodorSite: DNA Interactive (www.dnai.org)  

NSDL National Science Digital Library

Interviewee: Stephen Fodor DNAi Location:Applications>Genes and medicine>genetic profiling>Stephen Fodor How the chip was developed (Part I) Stephen Fodor discusses the experiments that laid the groundwork for GeneChip® technology.

2008-03-26

212

Protostars, multiplicity, and disk evolution in the Corona Australis region: a Herschel Gould Belt Study  

NASA Astrophysics Data System (ADS)

Context. The CrA region and the Coronet cluster form a nearby (138 pc), young (1-2 Myr) star-forming region that hosts a moderate population of Class I, II, and III objects. Aims: We study the structure of the cluster and the properties of the protostars and protoplanetary disks in the region. Methods: We present Herschel PACS photometry at 100 and 160 ?m, obtained as part of the Herschel Gould Belt Survey. The Herschel maps reveal the cluster members within the cloud with high sensitivity and high dynamic range. Results: Many of the cluster members are detected, including some embedded, very low-mass objects, several protostars (some of them extended), and substantial emission from the surrounding molecular cloud. Herschel also reveals some striking structures, such as bright filaments around the IRS 5 protostar complex and a bubble-shaped rim associated with the Class I object IRS 2. The disks around the Class II objects display a wide range of mid- and far-IR excesses consistent with different disk structures. We have modeled the disks with the RADMC radiative transfer code to quantify their properties. Some of them are consistent with flared, massive, relatively primordial disks (S CrA, T CrA). Others display significant evidence for inside-out evolution, consistent with the presence of inner holes/gaps (G-85, G-87). Finally, we found disks with a dramatic small dust depletion (G-1, HBC 677) that, in some cases, could be related to truncation or to the presence of large gaps in a flared disk (CrA-159). The derived masses for the disks around the low-mass stars are found to be below the typical values in Taurus, in agreement with previous Spitzer observations. Conclusions: The Coronet cluster presents itself as an interesting compact region that contains both young protostars and very evolved disks. The Herschel data provide sufficient spatial resolution to detect small-scale details, such as filamentary structures or spiral arms associated with multiple star formation. The disks around the cluster members range from massive, flared primordial disks to disks with substantial small dust grain depletion or with evidence of inside-out evolution. This results in an interesting mixture of objects for a young and presumably coevally formed cluster. Given the high degree of multiplicity and interactions observed among the protostars in the region, the diversity of disks may be a consequence of the early star formation history, which should also be taken into account when studying the disk properties in similar sparsely populated clusters. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.Table 3 is available in electronic form at http://www.aanda.org

Sicilia-Aguilar, A.; Henning, T.; Linz, H.; André, P.; Stutz, A.; Eiroa, C.; White, G. J.

2013-03-01

213

6A.7 Regional Snowfall Impact Scale Michael F. Squires*, Jay H. Lawrimore, and Richard R. Heim Jr.  

E-print Network

6A.7 Regional Snowfall Impact Scale Michael F. Squires*, Jay H. Lawrimore, and Richard R. Heim Jr Renaissance Computing Institute, Asheville, NC 1. INTRODUCTION This paper describes a new regional snowfall Data Center. The Regional Snowfall Impact Scale (ReSIS) is based on the spatial extent of the storm

214

Experimental Study of Parametric Autoresonance in Faraday Waves Oded Ben-David, Michael Assaf, Jay Fineberg, and Baruch Meerson  

E-print Network

Experimental Study of Parametric Autoresonance in Faraday Waves Oded Ben-David, Michael Assaf, Jay nonlinear waves is achieved via parametric autoresonance of Faraday waves. We experimentally demonstrate Faraday waves: standing gravity waves on a free surface of a fluid which are excited parametrically

Meerson, Baruch

215

Experimental Study of Parametric Autoresonance in Faraday waves Oded Ben-David, Michael Assaf, Jay Fineberg, and Baruch Meerson  

E-print Network

Experimental Study of Parametric Autoresonance in Faraday waves Oded Ben-David, Michael Assaf, Jay of Faraday waves. We experimentally demonstrate that phase locking to low amplitude driving can generate] and later [6] for nonlinear Faraday waves: stand- ing gravity waves on a free surface of a fluid which

Fineberg, Jay

216

c 1997 by Jay H. Lee, Jin Hoon Choi, and Kwang Soon Lee 1.6 PRACTICAL CONSIDERATIONS  

E-print Network

PID controllers, many modi cations are made from the standard form. Some of them are remove derivative PID controllers. det dt = d dtrt ,yt ! , dyt dt PID controllers with the above modi cation is denoted as PI-D con- trollers. 50 #12;c 1997 by Jay H. Lee, Jin Hoon Choi, and Kwang Soon Lee A similar

Hong, Deog Ki

217

A three translational DoFs parallel cube-manipulator Xin-Jun Liu*, Jay il Jeong, and Jongwon Kim  

E-print Network

A three translational DoFs parallel cube-manipulator Xin-Jun Liu*, Jay il Jeong, and Jongwon KimFs) parallel cube-manipulator. The parallel manipulators are the topol- ogy architectures of the DELTA robot sides of a cube, for such reason we call this type of manipulator the parallel cube

Kim, Jongwon

218

c 1997 by Jay H. Lee, Jin Hoon Choi, and Kwang Soon Lee 1.5 QUANTITIVE PID TUNING METHODS  

E-print Network

c 1997 by Jay H. Lee, Jin Hoon Choi, and Kwang Soon Lee 1.5 QUANTITIVE PID TUNING METHODS Tuning PID parameters is not a trivial task in general. Various tuning methods have been proposed for di Lee Kc Ku Kc = Ku Kc Ku step 4 Calculateand implementPID parametersusing the the Ziegler

Hong, Deog Ki

219

Nest success and the timing of nest failure of Florida Scrub-Jays in suburban and wildland habitats  

Microsoft Academic Search

Urbanization has broad and complex effects on ecological systems. Many of these effects are likely to influence nest success of birds, some positively and others negatively, thus complex interactions among effects are likely to exist that influence patterns of success. Nest success of Florida Scrub-Jays did not differ between a suburban and wildland population or across a human density gradient

Reed Bowman; Glen E. Woolfenden

220

Modeling and Control for PEM Fuel Cell Stack System I Jay T. Pukrushpan, Anna G. Stefanopoulou, Huei Peng  

E-print Network

Modeling and Control for PEM Fuel Cell Stack System I Jay T. Pukrushpan, Anna G. Stefanopoulou~umich, edu, hpeng@umich, edu Abstract A nonlinear fuel cell system dynamic model that is suit- able, the reactant partial pres- sures. Characterization of the Fuel Cell polarization curves based on time varying

Peng, Huei

221

The Frenkel Kontorova Model  

NASA Astrophysics Data System (ADS)

In the preface to his monograph on the structure of Evolutionary Theory [1], the late professor Stephen Jay Gould attributes to the philosopher Immanuel Kant the following aphorism in Science Philosophy: "Percepts without concepts are blind; concepts without percepts are empty". Using with a bit of freedom these Kantian terms, one would say that a scientific model is a framework (or network) of interrelated concepts and percepts where experts build up scientific consistent explanations of a given set of observations. Good models are those which are both, conceptually simple and universal in their perceptions. Let us illustrate with examples the meaning of this statement.

Floría, L. M.; Baesens, C.; Gómez-Gardeñes, J.

222

Jay's Collectibles  

ERIC Educational Resources Information Center

There is growing interest in collectibles of many types, as indicated by the popularity of television programs such as the History Channel's "Pawn Stars" and "American Pickers" and the Public Broadcasting Service's "Antiques Road Show." The availability of online auction sites such as eBay has enabled many people to collect items of interest as a…

Cappel, James J.; Gillman, Jason R., Jr.

2011-01-01

223

Making DNA chips, Stephen FodorSite: DNA Interactive (www.dnai.org)  

NSDL National Science Digital Library

Interviewee: Stephen Fodor DNAi Location:Manipulation>Techniques>large-scale analysis GeneChipsî, step by step Stephen Fodor talks about the photolithographic technique used to synthesize pieces of DNA on the surface of GeneChipsî.

2008-03-26

224

Increased lifetime reproductive success for Siberian jay (Perisoreus infaustus) males with delayed dispersal  

PubMed Central

In a crowded environment the natal territory could serve as a haven for young and inexperienced offspring until a breeding vacancy emerges. Delayed dispersal and association with kin could then offer adaptive benefits through an individual fitness gain. Here we report that delayed dispersal is associated with a higher lifetime individual fitness in Siberian jay (Perisoreus infaustus) males. Sons bred more successfully and had more reproductive events in life when they delayed dispersal. The higher lifetime reproductive success when sons disperse later in life is sufficient to promote postponement of natal dispersal, suggesting that dispersal is delayed due to ecological constraints on access to high-quality habitats. We argue that the maintenance of this variation in the timing of dispersal and reproductive success can be reconciled with non-genetic mechanisms driving dispersal. Social dominance within broods reflecting environmental conditions during growth is such a mechanism.

Ekman, J.; Bylin, A.; m, H. Tegelstr

1999-01-01

225

Effects of DNA variation on health, Stephen FodorSite: DNA Interactive (www.dnai.org)  

NSDL National Science Digital Library

Interviewee: Stephen Fodor DNAi Location:Applications>Genes and medicine>genetic profiling>Stephen Fodor Effects of DNA variation on health Stephen Fodor talks about the need to look broadly across the genome to find the relationship between genes and health in different people.

2008-03-26

226

Can male Eurasian jays disengage from their own current desire to feed the female what she wants?  

PubMed Central

Humans' predictions of another person's behaviour are regularly influenced by what they themselves might know or want. In a previous study, we found that male Eurasian jays (Garrulus glandarius) could cater for their female partner's current desire when sharing food with her. Here, we tested the extent to which the males' decisions are influenced by their own current desire. When the males' and female's desires matched, males correctly shared the food that was desired by both. When the female's desire differed from their own, the males' decisions were not entirely driven by their own desires, suggesting that males also took the female's desire into account. Thus, the male jays' decisions about their mates' desires are partially biased by their own desire and might be based upon similar processes as those found in humans. PMID:24671829

Ostoji?, Ljerka; Legg, Edward W.; Shaw, Rachael C.; Cheke, Lucy G.; Mendl, Michael; Clayton, Nicola S.

2014-01-01

227

Godel's Incompleteness Theorem for Computer Users Stephen A. Fenner  

E-print Network

of the Incompleteness theorem, the Fixed Point theorem, and L¨ob's theorem. 1 Introduction In 1931, Kurt G¨odel provedG¨odel's Incompleteness Theorem for Computer Users Stephen A. Fenner November 16, 2007 Abstract We sketch a short proof of G¨odel's Incompleteness theorem, based on a few reason- ably intuitive facts

Fenner, Stephen

228

When self-consciousness breaks G. Lynn Stephens & G. Graham  

E-print Network

When self-consciousness breaks G. Lynn Stephens & G. Graham Cambridge, Mas. : MIT Press, 2000 schizophrenia; it rather aims at unravelling the psychological structure of human consciousness. Even though, as the authors finally admit, much remains to be learnt on self-consciousness, the book offers two important

Paris-Sud XI, Université de

229

CASH FLOW TAXES IN AN OPEN ECONOMY Stephen Bond  

E-print Network

1 CASH FLOW TAXES IN AN OPEN ECONOMY Stephen Bond University of Oxford and Institute for Fiscal February 2002 Abstract Academic and policy debates generally consider levying tax on corporate profit, rather than production ­ destination-based, as opposed to source-based or residence-based, taxes. We

Sadoulet, Elisabeth

230

Toward Valid Measurement of Stephen Pepper's World Hypotheses.  

ERIC Educational Resources Information Center

Two measures of the "world hypotheses" of Stephen Pepper were mailed to 100 sociobiologists, 87 behaviorists, 79 personality psychologists, and 45 human developmentalists. The World Hypothesis Scale (WHS) was designed to measure Pepper's four world views: (1) formism; (2) mechanism; (3) organicism; and (4) contextualism. The Organicism-Mechanism…

Johnson, John A.

231

Magnetic discrimination that will satisfy regulators? Stephen D. Billings1  

E-print Network

Magnetic discrimination that will satisfy regulators? Stephen D. Billings1 , John M. Stanley2 that are not too adverse, we believe that discrimination using magnetics can be structured in a way that would total-field magnetic data collected over the Guthrie Road and Limestone Hills sites in Montana

Oldenburg, Douglas W.

232

Precision-Timed (PRET) Machines Stephen A. Edwards  

E-print Network

Precision-Timed (PRET) Machines Stephen A. Edwards Department of Computer Science, Columbia. Precision-Timed (PRET) Machines ­ p. 2/29 #12;Another Major Historical Event In 2006, Lee and Edwards did not invent reduced precision-timed computers (PRET machines). S. Edwards and E. A. Lee, "The Case

233

Bounded Immunity and Btt-Reductions Stephen Fenner  

E-print Network

Bounded Immunity and Btt-Reductions Stephen Fenner Department of Computer Science University schaefer@cs.uchicago.edu February 8, 2000 Abstract We define and study a new notion called k-immunity that lies between immunity and hyperimmunity in strength. Our interest in k-immunity is justified

Fenner, Stephen

234

Bounded Immunity and BttReductions Stephen Fenner #  

E-print Network

Bounded Immunity and Btt­Reductions Stephen Fenner # Department of Computer Science University schaefer@cs.uchicago.edu February 8, 2000 Abstract We define and study a new notion called k­immunity that lies between immunity and hyperimmunity in strength. Our interest in k­immunity is justified

Fenner, Stephen

235

HOW THE TALMUD DIVIDES AN ESTATE AMONG CREDITORS STEPHEN SCHECTER  

E-print Network

HOW THE TALMUD DIVIDES AN ESTATE AMONG CREDITORS STEPHEN SCHECTER 1. Introduction A man dies leaving an estate that is too small to pay his debts. How much should each creditor get? The Babylonian is owed 100, Creditor 2 is owed 200, and Creditor 3 is owed 300. (1) If the estate is 100, each creditor

Schecter, Stephen

236

Making Computer Algebra More Symbolic Stephen M. Watt  

E-print Network

Making Computer Algebra More Symbolic Stephen M. Watt Abstract This paper is a step to bring closer" and the view of "computer algebra." Symbolic computation may be seen as working with expression trees representing math- ematical formulae and applying various rules to transform them. Computer algebra may be seen

Watt, Stephen M.

237

The Value Trap: Value Buys Risky Growth Stephen Penman*  

E-print Network

The Value Trap: Value Buys Risky Growth Stephen Penman* Columbia Business School, Columbia. However, an investor buying value stocks in hope of those returns may be trapped into buying earnings shocks. These outcomes are demonstrated in a trading strategy that buys stocks based on their earnings

Qian, Ning

238

Sonically-Enhanced Drag and Drop Stephen A Brewster  

E-print Network

ICAD'98 1 Sonically-Enhanced Drag and Drop Stephen A Brewster Department of Computing Science if the addition of non-speech sounds to the drag and drop operation would increase usability. There are several problems with drag and drop that can result in the user not dropping a source icon over the target

Williamson, John

239

Safety Stocks in Manufacturing Systems Stephen C. Graves*  

E-print Network

Safety Stocks in Manufacturing Systems by Stephen C. Graves* WP 1894-87 January 1987 revised June 02139 ?i --------- --------·-- ·----·----11_1.._II ______. #12;SAFETY STOCKS INMANUFACTURING SYSTEMS functions and occur for various reasons. We define safety stocks inmanufacturing systems as all inventory

Graves, Stephen C.

240

Stephen Crews Lab February 21, 2009 Drosophila Embryo Collection  

E-print Network

Stephen Crews Lab February 21, 2009 1 Drosophila Embryo Collection 1. Prepare grape juice/agarose plates and yeast mixture for food. 2. Set up an embryo collection cage: use a tripour beaker with small your collection. 3. Determine the collection and aging times you need to get embryos at the stage

Crews, Stephen

241

Stephen Crews Lab February 21, 2009 Embryo Fixation  

E-print Network

Stephen Crews Lab February 21, 2009 1 Embryo Fixation 1) Collect embryos on grape juice/agar plates 2) Rinse embryos with water (a squirt bottle works well) into a collection vial. We use collection. 3) Rinse the embryos well with water making sure to rid them of all yeast and other debris. 4

Crews, Stephen

242

Between Traditions: Stephen Ball and the Critical Sociology of Education  

ERIC Educational Resources Information Center

Stephen Ball's work has deservedly received a good deal of attention. In this article, I detail a number of tasks in which the critical sociologist of education--as a "public intellectual"--should engage. I then place Ball's work within these tasks and evaluate his contributions to them. In the process, I show that one of the…

Apple, Michael W.

2013-01-01

243

Kidney Stone ProgramKIDNEY STONE PROGRAM STEPHEN DRETLER, MD  

E-print Network

Kidney Stone ProgramKIDNEY STONE PROGRAM STEPHEN DRETLER, MD 617-726-3512 DIANNE SACCO, MD 617 Kidney Stone Program offers a multidisciplinary approach to treatment and management of kidney stones of patients with kidney stones. #12;NEPHROLITHIASIS: KIDNEY STONES: Kidney stones usually become symptomatic

Mootha, Vamsi K.

244

Keystone effects of the endangered Stephens' kangaroo rat ( Dipodomys stephensi)  

Microsoft Academic Search

Kangaroo rats (Dipodomys) have been argued to exert keystone effects because they interact strongly with other species, and their removal results in major changes in community structure. We evaluated the nature and magnitude of such impacts by the endangered Stephens' kangaroo rat (Dipodomys stephensi), employing an exclosure experiment to determine how the removal of this species impacted relative cover by

Rachel E. Brock; Douglas A. Kelt

2004-01-01

245

Using Stephen Crane's "Maggie" To Teach the Progressive Era.  

ERIC Educational Resources Information Center

Outlines a lesson plan designed for an eleventh-grade U.S. history class in which the students learn about the Progressive Era by reading Stephen Crane's "Maggie: A Girl of the Streets." Explains that students analyze point of view, role play a talk show, write an essay, and complete a long-term research project. (CMK)

Gerwin, David; Manolios, Vassilios; Popodopoulos, Lia

1999-01-01

246

Verification: What works and what does not? Stephen A. Edwards  

E-print Network

Verification: What works and what does not? Stephen A. Edwards Columbia University Verification: What works and what does not? ­ p. 1/5 #12;Verification at Columbia · Luca Carloni et al. model detection. I want to verify my implementation obeys the semantics. Verification: What works and what does

247

A recursive Meat-axe algorithm Stephen P. Glasby  

E-print Network

A recursive Meat-axe algorithm Stephen P. Glasby Central Washington University November 2009 S. P. Glasby (CWU) A recursive Meat-axe algorithm 1 / 17 #12;Overview 1 Four Meat-axe problems: Invar, Cent, Iso, Subfield 2 Non-recursive Meat-axe algorithm 3 Changing field: scaling up F E; scaling down E F 4

Glasby, Stephen

248

Reconstructing Pong on an FPGA Stephen A. Edwards  

E-print Network

Reconstructing Pong on an FPGA Stephen A. Edwards Department of Computer Science, Columbia University ­ ­ , December Abstract I describe in detail the circuitry of the original Pong video arcade game reproduction that exhibits many idiosyncracies of the original. Pong Circuit Description . e Main Clock

249

Fertilizing The Garden1 James M. Stephens2  

E-print Network

HS505 Fertilizing The Garden1 James M. Stephens2 1. This document is HS505, one of a series Commissioners Cooperating. Nick T. Place, dean for UF/IFAS Extension. FERTILIZERS All plants must have food or other medium in which they are growing. Generally, plant food is in the form of commercial fertilizer

Jawitz, James W.

250

OPTIMIZING MONSANTO'S SUPPLY CHAIN UNDER UNCERTAIN DEMAND Stephen C. Graves*  

E-print Network

OPTIMIZING MONSANTO'S SUPPLY CHAIN UNDER UNCERTAIN DEMAND Stephen C. Graves* Professor Modeling Specialist Monsanto Co., 800 N. Lindbergh Blvd., St. Louis, MO 63167, previously at Massachusetts Institute of Technology 314-694-2345 Mitchell J. Pulwer* Supply Chain Manager Monsanto Co., 800 N. Lindbergh

Graves, Stephen C.

251

Updated 12-11 Stephen T. Bell, PE  

E-print Network

for NASA's Project Prometheus space nuclear power development, for which Mr. Bell was the head reactorUpdated 12-11 Stephen T. Bell, PE Branch Head, Advanced Reactor Design Naval Reactors Mr. Steve and a certificate in nuclear engineering from the Bettis Reactor Engineering School (whose classified curriculum

252

Electronic Properties of Bismuth Nanowires Stephen B. Cronina  

E-print Network

Electronic Properties of Bismuth Nanowires Stephen B. Cronina , Yu-Ming Linb , Oded Rabinc , Marcie alumina templates with molten bismuth has been used to synthesize single crystalline bismuth nanowires. INTRODUCTION Bismuth is an interesting material to study on the nanoscale because bulk Bi has very small

Cronin, Steve

253

MENTAL IMAGES AND THE BRAIN Stephen M. Kosslyn  

E-print Network

MENTAL IMAGES AND THE BRAIN Stephen M. Kosslyn Harvard University, Cambridge, MA, USA One theory of visual mental imagery posits that early visual cortex is also used to support representa- tions during. Following this, literature bearing on the claim that early visual cortex is used in visual mental imagery

Coulson, Seana

254

The Stephen and NancyGrand Water Research  

E-print Network

Agricultural Management Practices for Reducing Water Pollution and Hypoxia in Large Water Bodies in the WorldThe Stephen and NancyGrand Water Research Institute The Dahlia Greidinger International Symposium: Global Climate Change, Environmental Risks and Water Scarcity Appendix 1- Symposium Program 404 Crop

255

The Spitzer Survey of Interstellar Clouds in the Gould Belt. IV. Lupus V and VI Observed with IRAC and MIPS  

E-print Network

We present Gould's Belt (GB) Spitzer IRAC and MIPS observations of the Lupus V and VI clouds and discuss them in combination with near-infrared (2MASS) data. Our observations complement those obtained for other Lupus clouds within the frame of the Spitzer "Core to Disk" (c2d) Legacy Survey. We found 43 Young Stellar Object (YSO) candidates in Lupus V and 45 in Lupus VI, including 2 transition disks, using the standard c2d/GB selection method. None of these sources was classified as a pre-main sequence star from previous optical, near-IR and X-ray surveys. A large majority of these YSO candidates appear to be surrounded by thin disks (Class III; ~79% in Lupus V and ~87% in Lupus VI). These Class III abundances differ significantly from those observed for the other Lupus clouds and c2d/GB surveyed star-forming regions, where objects with optically thick disks (Class II) dominate the young population. We investigate various scenarios that can explain this discrepancy. In particular, we show that disk photo-evapo...

Spezzi, Loredana; Mer?n, Bruno; Allen, Lori E; Evans, Neal J; Jørgensen, Jes K; Bourke, Tyler L; Cieza, Lucas A; Dunham, Michael M; Harvey, Paul M; Huard, Tracy L; Peterson, Dawn; Tothill, Nick F H

2011-01-01

256

The James Clerk Maxwell Telescope Legacy Survey of Nearby Star-forming Regions in the Gould Belt  

E-print Network

This paper describes a James Clerk Maxwell Telescope (JCMT) legacy survey that has been awarded roughly 500 hrs of observing time to be carried out from 2007 to 2009. In this survey we will map with SCUBA-2 (Submillimetre Common User Bolometer Array 2) almost all of the well-known low-mass and intermediate-mass star-forming regions within 0.5 kpc that are accessible from the JCMT. Most of these locations are associated with the Gould Belt. From these observations we will produce a flux-limited snapshot of star formation near the Sun, providing a legacy of images, as well as point-source and extended-source catalogues, over almost 700 square degrees of sky. The resulting images will yield the first catalogue of prestellar and protostellar sources selected by submillimetre continuum emission, and should increase the number of known sources by more than an order of magnitude. We will also obtain CO maps with the array receiver HARP (Heterodyne Array Receiver Programme), in three CO isotopologues, of a large typical sample of prestellar and protostellar sources. We will then map the brightest hundred sources with the SCUBA-2 polarimeter (POL-2), producing the first statistically significant set of polarization maps in the submillimetre. The images and source catalogues will be a powerful reference set for astronomers, providing a detailed legacy archive for future telescopes, including ALMA, Herschel and JWST.

D. Ward-Thompson; J. Di Francesco; J. Hatchell; M. R. Hogerheijde; P. Bastien; S. Basu; I. Bonnell; J. Bowey; C. Brunt; J. Buckle; H. Butner; B. Cavanagh; A. Chrysostomou; E. Curtis; C. J. Davis; W. R. F. Dent; E. van Dishoeck; M. G. Edmunds; M. Fich; J. Fiege; L. Fissel; P. Friberg; R. Friesen; W. Frieswijk; G. A. Fuller; A. Gosling; S. Graves; J. S. Greaves; F. Helmich; R. E. Hills; W. S. Holland; M. Houde; R. Jayawardhana; D. Johnstone; G. Joncas; H. Kirk; J. M. Kirk; L. B. G. Knee; B. Matthews; H. Matthews; C. Matzner; G. H. Moriarty-Schieven; D. Naylor; D. Nutter; R. Padman; R. Plume; J. M. C. Rawlings; R. O. Redman; M. Reid; J. S. Richer; R. Shipman; R. J. Simpson; M. Spaans; D. Stamatellos; Y. Tsanis; S. Viti; B. Weferling; G. J. White; A. P. Whitworth; J. Wouterloot; J. Yates; M. Zhu

2007-07-02

257

The Spitzer Survey of Interstellar Clouds in the Gould Belt. V. Ophiuchus North Observed with IRAC and MIPS  

E-print Network

We present Spitzer IRAC (2.1 sq. deg.) and MIPS (6.5 sq. deg.) observations of star formation in the Ophiuchus North molecular clouds. This fragmentary cloud complex lies on the edge of the Sco-Cen OB association, several degrees to the north of the well-known rho Oph star-forming region, at an approximate distance of 130 pc. The Ophiuchus North clouds were mapped as part of the Spitzer Gould Belt project under the working name `Scorpius'. In the regions mapped, selected to encompass all the cloud with visual extinction AV>3, eleven Young Stellar Object (YSO) candidates are identified, eight from IRAC/MIPS colour-based selection and three from 2MASS K/MIPS colours. Adding to one source previously identified in L43 (Chen et al. 2009), this increases the number of YSOcs identified in Oph N to twelve. During the selection process, four colour-based YSO candidates were rejected as probable AGB stars and one as a known galaxy. The sources span the full range of YSOc classifications from Class 0/1 to Class III, and...

Hatchell, Jennifer; Huard, Tracy; Mamajek, Eric; Allen, Lori; Bourke, Tyler; Dunham, Michael; Gutermuth, Robert; Harvey, Paul; Jorgensen, Jes; Merin, Bruno; Noriega-Crespo, Albert; Peterson, Dawn

2012-01-01

258

The Spitzer survey of interstellar clouds in the Gould Belt. II. The Cepheus Flare observed with IRAC and MIPS  

E-print Network

We present Spitzer IRAC (~2 deg^2) and MIPS (~8 deg^2) observations of the Cepheus Flare which is associated with the Gould Belt, at an approximate distance of ~300 pc. Around 6500 sources are detected in all four IRAC bands, of which ~900 have MIPS 24 micron detections. We identify 133 YSO candidates using color-magnitude diagram techniques, a large number of the YSO candidates are associated with the NGC 7023 reflection nebula. Cross identifications were made with the Guide Star Catalog II and the IRAS Faint Source Catalog, and spectral energy distributions (SED) were constructed. SED modeling was conducted to estimate the degree of infrared excess. It was found that a large majority of disks were optically thick accreting disks, suggesting that there has been little disk evolution in these sources. Nearest-neighbor clustering analysis identified four small protostellar groups (L1228, L1228N, L1251A, and L1251B) with 5-15 members each and the larger NGC 7023 association with 32 YSO members. The star formati...

Kirk, Jason M; Di Francesco, James; Bourke, Tyler L; Evans, Neal J; Merín, Bruno; Allen, Lori E; Cieza, Lucas A; Dunham, Michael H; Harvey, Paul; Huard, Tracy; Jørgensen, Jes K; Miller, Jennifer F; Noriega-Crespo, Alberto; Peterson, Dawn; Ray, Tom P; Rebull, Luisa M

2009-01-01

259

Road load simulator tests of the Gould phase 1 functional model silicon controlled rectifier ac motor controller for electric vehicles  

NASA Technical Reports Server (NTRS)

The test results for a functional model ac motor controller for electric vehicles and a three-phase induction motor which were dynamically tested on the Lewis Research Center road load simulator are presented. Results show that the controller has the capability to meet the SAE-J227a D cycle test schedule and to accelerate a 1576-kg (3456-lb) simulated vehicle to a cruise speed of 88.5 km/hr (55 mph). Combined motor controller efficiency is 72 percent and the power inverter efficiency alone is 89 percent for the cruise region of the D cycle. Steady state test results for motoring, regeneration, and thermal data obtained by operating the simulator as a conventional dynamometer are in agreement with the contractor's previously reported data. The regeneration test results indicate that a reduction in energy requirements for urban driving cycles is attainable with regenerative braking. Test results and data in this report serve as a data base for further development of ac motor controllers and propulsion systems for electric vehicles. The controller uses state-of-the-art silicon controlled rectifier (SCR) power semiconductors and microprocessor-based logic and control circuitry. The controller was developed by Gould Laboratories under a Lewis contract for the Department of Energy's Electric and Hybrid Vehicle program.

Gourash, F.

1984-01-01

260

The JCMT Gould Belt Survey: low-mass protoplanetary discs from a SCUBA-2 census of NGC 1333  

NASA Astrophysics Data System (ADS)

NGC 1333 is a 1-2 Myr old cluster of stars in the Perseus molecular cloud. We used 850 ?m data from the Gould Belt Survey with SCUBA-2 on the James Clerk Maxwell Telescope to measure or place limits on disc masses for 82 Class II sources in this cluster. Eight disc candidates were detected; one is estimated to have mass of about 9 MJup in dust plus gas, while the others host only 2-4 MJup of circumstellar material. None of these discs exceeds the threshold for the `minimum mass solar nebula' (MMSN). This reinforces previous claims that only a small fraction of Class II sources at an age of 1-2 Myr have discs exceeding the MMSN threshold and thus can form a planetary system like our own. However, other regions with similarly low fractions of MMSN discs (IC 348, UpSco, ? Ori) are thought to be older than NGC 1333. Compared with coeval regions, the exceptionally low fraction of massive discs in NGC 1333 cannot easily be explained by the effects of UV radiation or stellar encounters. Our results indicate that additional environmental factors significantly affect disc evolution and the outcome of planet formation by core accretion.

Dodds, P.; Greaves, J. S.; Scholz, A.; Hatchell, J.; Holland, W. S.; JCMT Gould Belt Survey Team

2015-02-01

261

Consequences of heterogeneity in survival probability in a population of Florida scrub-jays.  

PubMed

1. Using data on breeding birds from a 35-year study of Florida scrub-jays Aphelocoma coerulescens (Bosc 1795), we show that survival probabilities are structured by age, birth cohort, and maternal family, but not by sex. Using both accelerated failure time (AFT) and Cox proportional hazard models, the data are best described by models incorporating variation among birth cohorts and greater mortality hazard with increasing age. AFT models using Weibull distributions with the shape parameter > 1 were always the best-fitting models. 2. Shared frailty models allowing for family structure greatly reduce model deviance. The best-fitting models included a term for frailty shared by maternal families. 3. To ask how long a data set must be to reach qualitatively the same conclusions, we repeated the analyses for all possible truncated data sets of 2 years in length or greater. Length of the data set affects the parameter estimates, but not the qualitative conclusions. In all but three of 337 truncated data sets the best-fitting models pointed to same conclusions as the full data set. Shared frailty models appear to be quite robust. 4. The data are not adequate for testing hypotheses as to whether variation in frailty is heritable. 5. Substantial structured heterogeneity for survival exists in this population. Such structured heterogeneity has been shown to have substantial effects in reducing demographic stochasticity. PMID:17009755

Fox, Gordon A; Kendall, Bruce E; Fitzpatrick, John W; Woolfenden, Glen E

2006-07-01

262

Signaling for food and sex? Begging by reproductive female white-throated magpie-jays  

PubMed Central

Food begging is common in nutritionally dependent young of many animals, but structurally homologous calls recur in adult signal repertoires of many species. We propose eight functional hypotheses for begging in adults; these stem from observations in birds but apply broadly to other taxa in which begging occurs. Adult cooperatively-breeding white-throated magpie-jays (Calocitta formosa) use loud begging vocalizations, particularly near the nest site during reproduction. We analysed the social context and behavioural phenology of loud calling and allofeeding in this species and compared these with predictions from each functional hypothesis. We found that reproductive females are the primary producers of beg calls, and their begging peaks during the fertile period when reproductive conflict among males and females was highest. Loud begging rates correlated positively with provisioning rates, but females called more in the pre-incubation fertile period than after they initiated incubation. Based on the context, phenology and active space of the signal, we conclude that female loud begging vocalizations function to signal nutritional need to group members, but also have been evolutionarily co-opted to advertise fertility to potential extra-pair partners. The location of calling is likely a consequence of nest guarding by breeding females to prevent intraspecific brood parasitism. PMID:23293376

Ellis, Jesse M. S.; Langen, Tom A.; Berg, Elena C.

2012-01-01

263

THE SPITZER SURVEY OF INTERSTELLAR CLOUDS IN THE GOULD BELT. IV. LUPUS V AND VI OBSERVED WITH IRAC AND MIPS  

SciTech Connect

We present Gould's Belt (GB) Spitzer IRAC and MIPS observations of the Lupus V and VI clouds and discuss them in combination with near-infrared (2MASS) data. Our observations complement those obtained for other Lupus clouds within the frame of the Spitzer 'Core to Disk' (c2d) Legacy Survey. We found 43 young stellar object (YSO) candidates in Lupus V and 45 in Lupus VI, including two transition disks, using the standard c2d/GB selection method. None of these sources was classified as a pre-main-sequence star from previous optical, near-IR, and X-ray surveys. A large majority of these YSO candidates appear to be surrounded by thin disks (Class III; {approx}79% in Lupus V and {approx}87% in Lupus VI). These Class III abundances differ significantly from those observed for the other Lupus clouds and c2d/GB surveyed star-forming regions, where objects with optically thick disks (Class II) dominate the young population. We investigate various scenarios that can explain this discrepancy. In particular, we show that disk photoevaporation due to nearby OB stars is not responsible for the high fraction of Class III objects. The gas surface densities measured for Lupus V and VI lie below the star formation threshold (A{sub V} {approx} 8.6 mag), while this is not the case for other Lupus clouds. Thus, few Myr older age for the YSOs in Lupus V and VI with respect to other Lupus clouds is the most likely explanation of the high fraction of Class III objects in these clouds, while a higher characteristic stellar mass might be a contributing factor. Better constraints on the age and binary fraction of the Lupus clouds might solve the puzzle but require further observations.

Spezzi, Loredana; Vernazza, Pierre [Research and Scientific Support Department, ESTEC (ESA), Keplerlaan, 1, P.O. Box 299, 2200 AG Noordwijk (Netherlands); Merin, Bruno [Herschel Science Centre, ESAC (ESA), P.O. Box 78, 28691 Villanueva de la Canada, Madrid (Spain); Allen, Lori E. [Department of Astronomy, University of Arizona, 933 N Cherry Ave., Tucson, AZ 85721-0065 (United States); Evans, Neal J. II; Harvey, Paul M. [Department of Astronomy, University of Texas at Austin, 1 University Station, C1400 Austin, TX 78712-0259 (United States); Joergensen, Jes K. [Centre for Star and Planet Formation, Natural History Museum of Denmark, University of Copenhagen, Oester Voldgade 5-7, DK-1350 Copenhagen (Denmark); Bourke, Tyler L.; Peterson, Dawn [Harvard-Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138 (United States); Cieza, Lucas A. [Institute for Astronomy, University of Hawaii at Manoa, Honolulu, HI 96822 (United States); Dunham, Michael M. [Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT 06520 (United States); Huard, Tracy L. [Astronomy Department, University of Maryland, College Park, MD 20742 (United States); Tothill, Nick F. H. [School of Physics, University of Exeter, Exeter, EX4 4QL (United Kingdom)

2011-04-01

264

Test series 1: seismic-fragility tests of naturally-aged Class 1E Gould NCX-2250 battery cells  

SciTech Connect

The seismic-fragility response of naturally-aged, nuclear station, safety-related batteries is of interest for two reasons: (1) to determine actual failure modes and thresholds; and (2) to determine the validity of using the electrical capacity of individual cells as an indicator of the end-of-life of a battery, given a seismic event. This report covers the first test series of an extensive program using 12-year old, lead-calcium, Gould NCX-2250 cells, from the James A. Fitzpatrick Nuclear Power Station operated by the New York Power Authority. Seismic tests with three cell configurations were performed using a triaxial shake table: single-cell tests, rigidly mounted; multi-cell (three) tests, mounted in a typical battery rack; and single-cell tests specifically aimed towards examining propagation of pre-existing case cracks. In general the test philosophy was to monitor the electrical properties including discharge capacity of cells through a graduated series of g-level step increases until either the shake-table limits were reached or until electrical failure of the cells occurred. Of nine electrically active cells, six failed during seismic testing over a range of imposed g-level loads in excess of a 1-g ZPA. Post-test examination revealed a common failure mode, the cracking at the abnormally brittle, positive lead bus-bar/post interface; further examination showed that the failure zone was extremely coarse grained and extensively corroded. Presently accepted accelerated-aging methods for qualifying batteries, per IEEE Std. 535-1979, are based on plate growth, but these naturally-aged 12-year old cells showed no significant plate growth.

Bonzon, L. L.; Hente, D. B.; Kukreti, B. M.; Schendel, J. S.; Tulk, J. D.; Janis, W. J.; Black, D A; Paulsen, G. D.; Aucoin, B. D.

1984-09-01

265

Williams College Expedition: Jay M. Pasachoff, Bryce A. Babcock, William G. Wagner, Matthew Baldwin, Katherine DuPr, Marcus Freeman, Marek Demianski, and Paul Rosenthal, in collaboration with Alphya Nestorenko and Igor  

E-print Network

Williams College Expedition: Jay M. Pasachoff, Bryce A. Babcock, William G. Wagner, Matthew Baldwin at the Siberian 2008 Total Solar Eclipse Jay M. Pasachoff (Caltech & Williams College), Bryce A. Babcock, Marcus Freeman, Katherine DuPré, and Marek Demianski (Williams College), Alphya Nesterenko (State Univ

Schneider, Glenn

266

Stephen Hawking : A Life in Science 2nd Ed.  

NSDL National Science Digital Library

Stephen Hawking is no ordinary scientist. With a career that began over thirty years ago at Cambridge University, he has managed to do more than perhaps any other scientist to broaden our basic understanding of the universe. His theoretical work on black holes and his progress in advancing our knowledge of the origin and nature of the cosmos have been groundbreaking if not downright revolutionary. This publication from the National Academies Press can be downloaded for a fee.

Gribbin, John; White, Michael

2002-01-01

267

SR-71 Pilot Stephen (Steve) D. Ishmael  

NASA Technical Reports Server (NTRS)

NASA research pilot Stephen D. Ishmael is pictured here in front of an SR-71 Blackbird on the ramp at the Dryden Flight Research Center, Edwards, California. Ishmael was one of two NASA research pilots assigned to the SR-71 high speed research program in the early 1990s at NASA's Dryden Flight Research Facility (redesignated the Dryden Flight Research Center in 1994), Edwards, California. Ishmael became a NASA research pilot in 1977. Data from the SR-71 program will be used to aid designers of future supersonic aircraft and propulsion systems. Two SR-71 aircraft have been used by NASA as testbeds for high-speed and high-altitude aeronautical research. The aircraft, an SR-71A and an SR-71B pilot trainer aircraft, have been based here at NASA's Dryden Flight Research Center, Edwards, California. They were transferred to NASA after the U.S. Air Force program was cancelled. As research platforms, the aircraft can cruise at Mach 3 for more than one hour. For thermal experiments, this can produce heat soak temperatures of over 600 degrees Fahrenheit (F). This operating environment makes these aircraft excellent platforms to carry out research and experiments in a variety of areas -- aerodynamics, propulsion, structures, thermal protection materials, high-speed and high-temperature instrumentation, atmospheric studies, and sonic boom characterization. The SR-71 was used in a program to study ways of reducing sonic booms or over pressures that are heard on the ground, much like sharp thunderclaps, when an aircraft exceeds the speed of sound. Data from this Sonic Boom Mitigation Study could eventually lead to aircraft designs that would reduce the 'peak' overpressures of sonic booms and minimize the startling affect they produce on the ground. One of the first major experiments to be flown in the NASA SR-71 program was a laser air data collection system. It used laser light instead of air pressure to produce airspeed and attitude reference data, such as angle of attack and sideslip, which are normally obtained with small tubes and vanes extending into the airstream. One of Dryden's SR-71s was used for the Linear Aerospike Rocket Engine, or LASRE Experiment. Another earlier project consisted of a series of flights using the SR-71 as a science camera platform for NASA's Jet Propulsion Laboratory in Pasadena, California. An upward-looking ultraviolet video camera placed in the SR-71's nosebay studied a variety of celestial objects in wavelengths that are blocked to ground-based astronomers. Earlier in its history, Dryden had a decade of past experience at sustained speeds above Mach 3. Two YF-12A aircraft and an SR-71 designated as a YF-12C were flown at the center between December 1969 and November 1979 in a joint NASA/USAF program to learn more about the capabilities and limitations of high-speed, high-altitude flight. The YF-12As were prototypes of a planned interceptor aircraft based on a design that later evolved into the SR-71 reconnaissance aircraft. Dave Lux was the NASA SR-71 project manger for much of the decade of the 1990s, followed by Steve Schmidt. Developed for the USAF as reconnaissance aircraft more than 30 years ago, SR-71s are still the world's fastest and highest-flying production aircraft. The aircraft can fly at speeds of more than 2,200 miles per hour (Mach 3+, or more than three times the speed of sound) and at altitudes of over 85,000 feet. The Lockheed Skunk Works (now Lockheed Martin) built the original SR-71 aircraft. Each aircraft is 107.4 feet long, has a wingspan of 55.6 feet, and is 18.5 feet high (from the ground to the top of the rudders, when parked). Gross takeoff weight is about 140,000 pounds, including a possible fuel weight of 80,280 pounds. The airframes are built almost entirely of titanium and titanium alloys to withstand heat generated by sustained Mach 3 flight. Aerodynamic control surfaces consist of all-moving vertical tail surfaces, ailerons on the outer wings, and elevators on the trailing edges between the engine exhaust nozzles. The two SR-71s at Dryden have been assigned the follow

1992-01-01

268

Obituary: Andrew Stephen Wilson, 1947-2008  

NASA Astrophysics Data System (ADS)

On 24 May 2008, Andrew Stephen Wilson passed away at the age of 61, in his home in Silver Spring, Maryland, from complications resulting from a painful spinal illness. Andrew was arguably one of the first truly multi-wavelength astronomers of his generation. His scientific work on active galactic nuclei [AGN] spanned the entire electromagnetic spectrum from the radio to the X-rays. Andrew was born in Doncaster, Yorkshire, England, on 26 March 1947. He was the younger of two brothers whose births were separated by the Second World War. His father, Norman, came from a relatively affluent family who were coal merchants. His mother, Mary, came from a less comfortable background, one of seven children, daughter of a skilled cabinet maker/French polisher, who went through a very hard time during the depression. As a teacher, she placed enormous value on hard work and education as a way of gaining advancement in life. When Andrew was four, the family moved to Skipton, a nice market town in the Yorkshire dales. Andrew went to a small village school until age eleven when he entered Ermysted's Grammar School. He was an enthusiastic soccer and cricket player. He never lost his enthusiasm for soccer and supported the local soccer team, Leeds United, for all his life. Andrew also followed the Yorkshire county cricket team. Andrew's interest in astronomy stemmed from the fact that at Ermysted's Grammar School someone donated a four-inch refracting telescope, so he and his friends used to go back in the evenings to investigate the rings of Saturn, the moons of Jupiter, and various nebulae. While an undergraduate at Cambridge, Andrew joined the astronomy club and ground an 8-inch mirror by hand as a part of a telescope that he set up in the backyard of his parents' house. Andrew spent hours observing with this telescope, and it was the wonder of the family. At Cambridge, Andrew obtained his bachelor's degree with first-class honors in 1969. During a short visit in London with his fellow students to celebrate the end of their exams, Andrew met Finnish summer student, Kaija Kettunen, whom he married in 1975 in her home town of Lieksa, Finland. They had a son, Daniel, now living in South Riding, Virginia, and a daughter, Caroline, living in Oakland, California. In 1973, Andrew obtained his doctorate degree in physics at the Cavendish Laboratory, working under the direction of Martin Ryle, winner of the 1974 Nobel Prize in physics. Andrew's PhD was dedicated to a study of the Crab Nebula at the highest radio frequencies at which the Cambridge One-mile Telescope could operate. This work, which included both intensity and polarization data, was a triumph of perseverance and skill in the reduction of an extremely complex data set. This experience stood him in excellent stead for his future career. After his PhD, Andrew went on to be a postdoctoral research fellow at Sterrewacht, Leiden, Netherlands, and then at the Astronomy Centre of the University of Sussex, England. By that time, Andrew wanted to leave England, because he thought that he would be able to secure a permanent position in astronomy faster in another country. He also loved traveling and getting to know other cultures, and he learned foreign languages easily. In 1978, Andrew and his wife had two choices: One was to accept a position at the European Southern Observatory in Garching and the other was to come to the University of Maryland. Together they decided to come to the United States rather than go to Germany because of the language and culture. Andrew remained at the University of Maryland for his entire career. He was a scientist of extraordinary productivity and impact over his lifetime: He wrote more than three-hundred scientific publications and accumulated more than 11,000 citations to this large body of work. In the 1970s and 1980s, he pioneered the use of radio telescopes for the study of active galactic nuclei, writing in collaboration with his students a number of seminal papers that are still standard references in the field today. In the last 15 years, Andrew becam

Veilleux, Sylvain

2009-01-01

269

The Spitzer Survey of Interstellar Clouds in the Gould Belt. VI. The Auriga-California Molecular Cloud Observed with IRAC and MIPS  

NASA Technical Reports Server (NTRS)

We present observations of the Auriga-California Molecular Cloud (AMC) at 3.6, 4.5, 5.8, 8.0, 24, 70 and 160 micrometers observed with the IRAC and MIPS detectors as part of the Spitzer Gould Belt Legacy Survey. The total mapped areas are 2.5 deg(exp 2) with IRAC and 10.47 deg2 with MIPS. This giant molecular cloud is one of two in the nearby Gould Belt of star-forming regions, the other being the Orion A Molecular Cloud (OMC). We compare source counts, colors and magnitudes in our observed region to a subset of the SWIRE data that was processed through our pipeline. Using color-magnitude and color-color diagrams, we find evidence for a substantial population of 166 young stellar objects (YSOs) in the cloud, many of which were previously unknown. Most of this population is concentrated around the LkH(alpha) 101 cluster and the filament extending from it. We present a quantitative description of the degree of clustering and discuss the fraction of YSOs in the region with disks relative to an estimate of the diskless YSO population. Although the AMC is similar in mass, size and distance to the OMC, it is forming about 15 - 20 times fewer stars.

Broekhoven-Fiene, Hannah; Matthews, Brenda C.; Harvey, Paul M.; Gutermuth, Robert A.; Huard, Tracy L.; Tothill, Nicholas F. H.; Nutter, David; Bourke, Tyler L.; DiFrancesco, James; Jorgensen, Jes K.; Allen, Lori E.; Chapman, Nicholas L.; Dunham, Michael M.; Merin, Bruno; Miller, Jennifer F.; Terebey, Susan; Peterson, Dawn E.; Stapelfeldt, Karl R.

2014-01-01

270

The JCMT Legacy Survey of the Gould Belt: mapping 13CO and C18O in Orion A  

NASA Astrophysics Data System (ADS)

The Gould Belt Legacy Survey will map star-forming regions within 500 pc, using Heterodyne Array Receiver Programme (HARP), Submillimetre Common-User Bolometer Array 2 (SCUBA-2) and Polarimeter 2 (POL-2) on the James Clerk Maxwell Telescope (JCMT). This paper describes HARP observations of the J= 3 ? 2 transitions of 13CO and C18O towards Orion A. The 15 arcsec resolution observations cover 5 pc of the Orion filament, including OMC 1 (including BN-KL and Orion bar), OMC 2/3 and OMC 4, and allow a comparative study of the molecular gas properties throughout the star-forming cloud. The filament shows a velocity gradient of ˜1 km s-1 pc-1 between OMC 1, 2 and 3, and high-velocity emission is detected in both isotopologues. The Orion Nebula and Bar have the largest masses and linewidths, and dominate the mass and energetics of the high-velocity material. Compact, spatially resolved emission from CH3CN, 13CH3OH, SO, HCOOCH3, CH3CHO and CH3OCHO is detected towards the Orion Hot Core. The cloud is warm, with a median excitation temperature of ˜24 K; the Orion Bar has the highest excitation temperature gas, at >80 K. The C18O excitation temperature correlates well with the dust temperature (to within 40 per cent). The C18O emission is optically thin, and the 13CO emission is marginally optically thick; despite its high mass, OMC 1 shows the lowest opacities. A virial analysis indicates that Orion A is too massive for thermal or turbulent support, but is consistent with a model of a filamentary cloud that is threaded by helical magnetic fields. The variation of physical conditions across the cloud is reflected in the physical characteristics of the dust cores. We find similar core properties between starless and protostellar cores, but variations in core properties with position in the filament. The OMC 1 cores have the highest velocity dispersions and masses, followed by OMC 2/3 and OMC 4. The differing fragmentation of these cores may explain why OMC 1 has formed clusters of high-mass stars, whereas OMC 4 produces fewer, predominantly low-mass stars.

Buckle, J. V.; Davis, C. J.; Francesco, J. Di; Graves, S. F.; Nutter, D.; Richer, J. S.; Roberts, J. F.; Ward-Thompson, D.; White, G. J.; Brunt, C.; Butner, H. M.; Cavanagh, B.; Chrysostomou, A.; Curtis, E. I.; Duarte-Cabral, A.; Etxaluze, M.; Fich, M.; Friberg, P.; Friesen, R.; Fuller, G. A.; Greaves, J. S.; Hatchell, J.; Hogerheijde, M. R.; Johnstone, D.; Matthews, B.; Matthews, H.; Rawlings, J. M. C.; Sadavoy, S.; Simpson, R. J.; Tothill, N. F. H.; Tsamis, Y. G.; Viti, S.; Wouterloot, J. G. A.; Yates, J.

2012-05-01

271

High latitudes and high genetic diversity: phylogeography of a widespread boreal bird, the gray jay (Perisoreus canadensis).  

PubMed

We describe range-wide phylogeographic variation in gray jays (Perisoreus canadensis), a boreal Nearctic corvid that occurs today primarily in recently glaciated regions. Phylogenetic analysis of mitochondrial DNA (1041 base pairs ND2 gene; N=205, 50 localities) revealed four reciprocally monophyletic groups. One widespread clade occurs across the North American boreal zone, from Newfoundland to Alaska and southwest into Utah. Three other clades occur at lower latitudes in the montane West in Colorado, the northern Rocky Mountains, and the Pacific Northwest respectively. The geographic distribution of clades in gray jays corresponds with a general pattern that is emerging for boreal taxa, having one widespread northern clade and one or more geographically restricted southwestern clades. Population genetic analyses indicate that the larger boreal clade is genetically structured and harbors significantly more genetic diversity than those clades occurring at lower latitudes. Species distribution modeling (SDM) revealed multiple putative Pleistocene refugia including several occurring at higher latitudes. We suggest that multiple post-glacial colonization routes, some of which originate from these northern refugia, are responsible for the relatively high genetic diversity at high latitudes. Conversely, lower latitude clades show little variation, probably as a result of historical restriction to smaller geographical areas with smaller long-term population sizes. This 'upside-down' pattern of genetic diversity contrasts with the conventional view that populations of north-temperate species occupying previously glaciated habitats should possess lower levels of diversity than their southern counterparts. PMID:22321688

van Els, Paul; Cicero, Carla; Klicka, John

2012-05-01

272

How GeneChip® was developed (Part II), Stephen FodorSite: DNA Interactive (www.dnai.org)  

NSDL National Science Digital Library

Interviewee: Stephen Fodor DNAi Location:Applications>Genes and medicine>genetic profiling>Stephen Fodor How the chip was developed (Part II) Stephen Fodor continues his discussion of the experiments that laid the groundwork for GeneChip® technology.

2008-03-26

273

Speciation in Western Scrub-Jays, Haldane’s rule, and genetic clines in secondary contact  

PubMed Central

Background Haldane’s Rule, the tendency for the heterogametic sex to show reduced fertility in hybrid crosses, can obscure the signal of gene flow in mtDNA between species where females are heterogametic. Therefore, it is important when studying speciation and species limits in female-heterogametic species like birds to assess the signature of gene flow in the nuclear genome as well. We studied introgression of microsatellites and mtDNA across a secondary contact zone between coastal and interior lineages of Western Scrub-Jays (Aphelocoma californica) to test for a signature of Haldane’s Rule: a narrower cline of introgression in mtDNA compared to nuclear markers. Results Our initial phylogeographic analysis revealed that there is only one major area of contact between coastal and interior lineages and identified five genetic clusters with strong spatial structuring: Pacific Slope, Interior US, Edwards Plateau (Texas), Northern Mexico, and Southern Mexico. Consistent with predictions from Haldane’s Rule, mtDNA showed a narrower cline than nuclear markers across a transect through the hybrid zone. This result is not being driven by female-biased dispersal because neutral diffusion analysis, which included estimates of sex-specific dispersal rates, also showed less diffusion of mtDNA. Lineage-specific plumage traits were associated with nuclear genetic profiles for individuals in the hybrid zone, indicating that these differences are under genetic control. Conclusions This study adds to a growing list of studies that support predictions of Haldane’s Rule using cline analysis of multiple loci of differing inheritance modes, although alternate hypotheses like selection on different mtDNA types cannot be ruled out. That Haldane’s Rule appears to be operating in this system suggests a measure of reproductive isolation between the Pacific Slope and interior lineages. Based on a variety of evidence from the phenotype, ecology, and genetics, we recommend elevating three lineages to species level: A. californica (Pacific Slope); A. woodhouseii (Interior US plus Edwards Plateau plus Northern Mexico); A. sumichrasti (Southern Mexico). The distinctive Edwards Plateau population in Texas, which was monophyletic in mtDNA except for one individual, should be studied in greater detail given habitat threat. PMID:24938753

2014-01-01

274

Reading Stephen King: Issues of Censorship, Student Choice, and Popular Literature.  

ERIC Educational Resources Information Center

This collection of essays grew out of the "Reading Stephen King Conference" held at the University of Maine in 1996. Stephen King's books have become a lightning rod for the tensions around issues of including "mass market" popular literature in middle and high school English classes and of who chooses what students read. King's fiction is among…

Power, Brenda Miller, Ed.; Wilhelm, Jeffrey D., Ed.; Chandler, Kelly, Ed.

275

78 FR 6321 - Stephen Phillips, Brentwood Dam Ventures, LLC; Notice of Transfer of Exemption  

Federal Register 2010, 2011, 2012, 2013, 2014

...4254-009] Stephen Phillips, Brentwood Dam Ventures, LLC; Notice of Transfer of Exemption...Stephen Phillips and Brentwood Dam Ventures, LLC informed the Commission that the...has been transferred to Brentwood Dam Ventures, LLC. The project is located on...

2013-01-30

276

Scalable Ethernet for Data Centers Brent Stephens , Alan Cox , Wes Felter , Colin Dixon , and  

E-print Network

PAST Scalable Ethernet for Data Centers Brent Stephens , Alan Cox , Wes Felter , Colin Dixon , and John Carter Rice University IBM Research February 11th, 2013 Brent Stephens PAST: Scalable Ethernet for Data Centers 1 / 38 #12;PAST . . . . . . is a large flat Ethernet network for using arbitrary

Mellor-Crummey, John

277

Testing Small Wind Turbine Generators: Design of a Driving Dynamometer Stephen Rehmeyer Pepe  

E-print Network

Testing Small Wind Turbine Generators: Design of a Driving Dynamometer by Stephen Rehmeyer Pepe Sc, Berkeley Spring 2007 #12;Testing Small Wind Turbine Generators: Design of a Driving Dynamometer Copyright c 2007 by Stephen Rehmeyer Pepe #12;Abstract Testing Small Wind Turbine Generators: Design of a Driving

Kammen, Daniel M.

278

Pressure-Based Menu Selection for Mobile Devices Graham Wilson, Craig Stewart and Stephen A. Brewster  

E-print Network

Pressure-Based Menu Selection for Mobile Devices Graham Wilson, Craig Stewart and Stephen A.dcs.gla.ac.uk/~stephen ABSTRACT Despite many successes in desktop applications, little work has looked at the use of pressure-visual feedback. This study examined pressure input on a mobile device using a single Force Sensing Resistor (FSR

Williamson, John

279

Diet quality during pre-laying and nestling periods influences growth and survival of Florida scrub-jay (Aphelocoma coerulescens) chicks  

Microsoft Academic Search

Food availability is one of the most important determinants of successful reproduction in birds. In a previous study, it was shown that Florida scrub-jays Aphelocoma coerulescens maintained a third egg mass when supplemented with ah igh fat and high protein diet during pre-breeding, as opposed to birds that were not supplemented that laid third eggs markedly lighter in mass than

S. James Reynolds; Stephan J. Schoech; Reed Bowman

2003-01-01

280

c 1997 by Jay H. Lee, Jin Hoon Choi, and Kwang Soon Lee 1.3 ELEMENTS OF A FEEDBACK SYSTEM  

E-print Network

is for detection of a sensor failure. I P Current to Pneumatic Pressure Transducer Linearly convert 4-20 mA to 3 pumping cost, but tends to be more nonlinear and sensitive to pressure drop changes. 17 #12;c 1997 by Jay Conditioning the sensor signal Ohm, mv, mA to voltage linearization conversion of the voltage signal to 4

Hong, Deog Ki

281

~1.~~ THE YELLOW DWARF FORM OF THE COTTON APHID, AflIlS I Lawrence R. Wilhoit and Jay A. Rosenheim  

E-print Network

~1.~~ THE YELLOW DWARF FORM OF THE COTTON APHID, AflIlS I GossvPll I Lawrence R. Wilhoit and Jay A. Rosenheim University of California, Davis, CA The cotton aphid, AphisgossypiiGlover, varies in size and color. During the summer, small yellow forms predominate. while during the spring and fall the aphids

Rosenheim, Jay A.

282

Co-lasing in an electrically tunable erbium-doped fiber laser Jay W. Dawson, Namkyoo Park, and Kerry J. Vahala  

E-print Network

Co-lasing in an electrically tunable erbium-doped fiber laser Jay W. Dawson, Namkyoo Park simultaneous wavelength operation (co-lasing) of an erbium-doped fiber ring laser with independent tunability tunable single-frequency, erbium-doped fiber ring laser with a tandem Fabry-Perot filter,le3 having

Park, Namkyoo

283

A Conservation Strategy for the Florida Scrub-Jay on John F. Kennedy Space Center/Merritt Island National Wildlife Refuge: An Initial Scientific Basis for Recovery  

NASA Technical Reports Server (NTRS)

The Florida Scrub-Jay (Aphelocoma coerulescens) is an indicator of ecosystem integrity of Florida scrub, an endangered ecosystem that requires frequent fire. One of the largest populations of this federally threatened species occurs on John F. Kennedy Space Center/Merritt Island National Wildlife Refuge. Population trends were predicted using population modeling and field data on reproduction and survival of Florida Scrub-Jays collected from 1988 - 1995. Analyses of historical photography indicated that habitat suitability has been declining for 30 years. Field data and computer simulations suggested that the population declined by at least 40% and will decline by another 40% in 1 0 years, if habitat management is not greatly intensified. Data and computer simulations suggest that habitat suitability cannot deviate greatly from optimal for the jay population to persist. Landscape trajectories of vegetation structure, responsible for declining habitat suitability, are associated with the disruption of natural fire regimes. Prescribed fire alone can not reverse the trajectories. A recovery strategy was developed, based on studies of Florida Scrub-Jays and scrub vegetation. A reserve design was formulated based on conservation science principles for scrub ecosystems. The strategy emphasizes frequent fire to restore habitat, but includes mechanical tree cutting for severely degraded areas. Pine thinning across large areas can produce rapid increases in habitat quality. Site-specific strategies will need to be developed, monitored, and modified to achieve conditions suitable for population persistence.

Breininger, D. R.; Larson, V. L.; Schaub, R.; Duncan, B. W.; Schmalzer, P. A.; Oddy, D. M.; Smith, R. B.; Adrian, F.; Hill, H., Jr.

1996-01-01

284

A first-generation microsatellite-based genetic linkage map of the Siberian jay (Perisoreus infaustus): insights into avian genome evolution  

Microsoft Academic Search

BACKGROUND: Genomic resources for the majority of free-living vertebrates of ecological and evolutionary importance are scarce. Therefore, linkage maps with high-density genome coverage are needed for progress in genomics of wild species. The Siberian jay (Perisoreus infaustus; Corvidae) is a passerine bird which has been subject to lots of research in the areas of ecology and evolutionary biology. Knowledge of

Sonja Jaari; Meng-Hua Li; Juha Merilä

2009-01-01

285

Stephen Hales and the measurement of blood pressure.  

PubMed

Natural philosopher and inventor, Stephen Hales (1677-1761), undertook a lengthy series of experiments on animals described in Haemastaticks (1733) which led to the first direct measurement of blood pressure. Hales retained his interest in health and disease throughout his life, and this prompted what he regarded as his most important work: the invention of ventilation systems for use in ships or prisons. Hales was the 'perpetual curate' of Teddington, Middlesex, and he combined a mechanistic, quantitative approach to his experimental work with a need and, as he saw it, a duty to discover and wonder at the wisdom and goodness of God by studying His creation. PMID:7884783

Lewis, O

1994-12-01

286

Translational research into intertemporal choice: The Western scrub-jay as an animal model for future-thinking.  

PubMed

Decisions often involve outcomes that will not materialise until later, and choices between immediate gratification and future consequences are thought to be important for human health and welfare. Combined human and animal research has identified impulsive intertemporal choice as an important factor in drug-taking and pathological gambling. In this paper, we give an overview of recent research into intertemporal choice in non-human animals, and argue that this work could offer insight into human behaviour through the development of animal models. As an example, we discuss the role of future-thinking in intertemporal choice, and review the case for the Western scrub-jay (Aphelocoma californica) as an animal model of such prospective cognition. This article is part of a Special Issue entitled: Tribute to Tom Zentall. PMID:25225036

Thom, James M; Clayton, Nicola S

2014-09-16

287

"BECAUSE SOME STORIES DO LIVE FOREVER": STEPHEN KING'S THE DARK TOWER SERIES AS MODERN ROMANCE  

E-print Network

Stephen King's Dark Tower series is a seven-volume work that contains elements from myths, fairy tales, American westerns, legends, popular culture, Gothic literature, and medieval romance. Few scholars have engaged with this series, most likely due...

McMurray, Rachel Elizabeth

2012-05-31

288

Stephen Baylin, M.D., Explains the Difference Between Genetics and Epigenetics  

Cancer.gov

Stephen Baylin, M.D., at the Johns Hopkins Kimmel Cancer Center discusses the how alterations in DNA are deciphered in a combined effort with The Cancer Genome Atlas at the National Cancer Institute to decode the brain cancer genome.

289

MAGNETOSTRATIGRAPHY OF THE EARLY CRETACEOUS WEALDEN GROUP, ISLE OF WIGHT Conall Mac Niocaill, & Stephen Hesselbo  

E-print Network

MAGNETOSTRATIGRAPHY OF THE EARLY CRETACEOUS WEALDEN GROUP, ISLE OF WIGHT Conall Mac Niocaill, & Stephen Hesselbo The Wealden Group sediments exposed on the Isle of Wight (IOW) were deposited in coastal

Niocaill, Conall Mac

290

Jurassic sequences of the Hebrides Basin, Isle of Skye, Scotland STEPHEN P. HESSELBO*  

E-print Network

Jurassic sequences of the Hebrides Basin, Isle of Skye, Scotland STEPHEN P. HESSELBO* and ANGELA L the Outer Isles to the mainland SE of Skye, showing structural disposition of the main Mesozoic sedimentary

Hesselbo, Stephen P.

291

Automatic Volume Control for Auditory Stephen Brewster, Andrew Crossan and Murray  

E-print Network

Automatic Volume Control for Auditory Interfaces Stephen Brewster, Andrew Crossan and Murray Crease (such as microwaves that use sound to indicate when cooking is complete). One major problem with all

Williamson, John

292

COMPARING THE XAM API WITH FILE SYSTEM PROGRAMMING STEPHEN J. TODD  

E-print Network

COMPARING THE XAM API WITH FILE SYSTEM PROGRAMMING BY STEPHEN J. TODD B.S.C.S. , University of New ................................................................................ 3 2. THE XAM API TO THE FILE SYSTEM API............................................ 37 6. XAM BENEFITS VERSUS THE FILE SYSTEM

New Hampshire, University of

293

Type Inference For Atomicity Cormac Flanagan Stephen N. Freund Marina Lifshin  

E-print Network

Type Inference For Atomicity Cormac Flanagan Stephen N. Freund Marina Lifshin Department Cruz, CA 95064 Williamstown, MA 01267 Abstract Atomicity is a fundamental correctness property in multithreaded programs. This paper presents an algorithm for verifying atomicity via type inference

Flanagan, Cormac

294

Stephen F. Austin State University: Forest Resources Institute  

NSDL National Science Digital Library

Truly, the Forest Resources Institute (FRI) at Stephen F. Austin State University is a "friend of the forest." It's part of the Institute's mission statement. The FRI works to "serve all legitimate stakeholders in the southern forest without preference." On the website, visitors can learn more about the FRI, its history, and its ongoing research projects. In the Research area, visitors can read summaries of work on road sediments, fire prevention and management, and small watersheds in the South. Moving on, the GIS Resources area includes spatial data sets for Louisiana, links to related data sources, and a range of Texas maps. Finally, users should not miss the Landowner Briefs area. Here they will find a set of documents designed for landowners dealing with various forest-based issues. The titles here include "Area Control of Unwanted Woody Stems With A Foliar Spray" and "Shotgun Application for Individual Woody Stem Control."

2012-08-31

295

Do meaning-related blockers induce tip-of-the-tongue states? / by Stephen Paul Balfour  

E-print Network

DO MEANING-RELATED BLOCKERS INDUCE TIP-OF-THE-TONGUE STATES? A Thesis by STEPHEN PAUL BALFOUR Submitted to the Office of Graduate Studies of Texas Ak. M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE December 1992 Major Subject: Psychology DO MEANING-RELATED BLOCKERS INDUCE TIP-OF-THE-TONGUE STATES? A Thesis by STEPHEN PAUL BALFOUR Submitted to the Office of Graduate Studies of Texas AgcM University in partial fulfillment...

Balfour, Stephen Paul

2012-06-07

296

A same-sex stepparent shortens a prebreeder's duration on the natal territory: tests of two hypotheses in Florida scrub-jays  

Microsoft Academic Search

Prebreeders of the Florida scrub-jay (Aphelocoma coerulescens) are less likely to be found on their natal territories with a same-sex stepparent than with parents or an opposite-sex stepparent.\\u000a We tested two models that had been proposed to account for this sexual asymmetry. The dominance hypothesis states that stepparents\\u000a perceive same-sex prebreeders as competitors, primarily for a mate, so behave aggressively

Jill M. Goldstein; Glen E. Woolfenden; Jack P. Hailman

1998-01-01

297

Neuroprotective effects and mechanism of cognitive-enhancing choline analogs JWB 1-84-1 and JAY 2-22-33 in neuronal culture and Caenorhabditis elegans  

Microsoft Academic Search

BACKGROUND: Our previous work indicated that novel analogs of choline have cytoprotective effects in vitro that might be useful in neurodegenerative conditions such as Alzheimer's disease (AD). Furthermore, two lead compounds (JWB1-84-1 and JAY2-22-33) from a library of more than 50 improved cognitive performances in a transgenic mouse model of AD. The purpose of these experiments was to more specifically

Roongpetch Keowkase; Marwa Aboukhatwa; Bao-Ling Adam; J Warren Beach; Alvin V Terry Jr; Jerry J Buccafussco; Yuan Luo

2010-01-01

298

Conservation as virtue: a scientific and social process for conservation ethics.  

PubMed

Most scientists take ethical arguments for conservation as given and focus on scientific or economic questions. Although nature conservation is often considered a just cause, it is given little further consideration. A lack of attention to ethical theory raises serious concerns for how conservation scientists conceive and practice ethics. I contrast two common ways scientists approach ethics, as demonstrated in the writings of Stephen Jay Gould and E. O. Wilson. Gould casts severe doubt as to whether any ethics are possible from science, whereas Wilson proposes science as the only path to ethics. I argue these two methods ultimately limit popular support for conservation and offer Alasdair MacIntyre's "virtue ethics" as an alternative. Unlike Gould and Wilson, MacIntyre provides an ethical theory that reconciles scientific inquiry and social traditions. Recent studies of the Civil Rights Movement in the United States affirm MacIntyre's claims and provide important insights for conservation today. These accounts argue that social solidarity and political success against segregation were possible only as rooted in the particular language, logic, and practices of a robust cultural tradition. If correct, conservation science should attend to several questions. On what basis can conservation achieve widespread cultural legitimacy? What are the particular social currencies for a conservation ethic? What role does science play in such a scheme? MacIntyre's careful positioning of scientific and social traditions provides a hopeful ethical direction for conservation. PMID:17002754

Van Houtan, Kyle S

2006-10-01

299

Delayed upwelling alters nearshore coastal ocean ecosystems in the northern California Kirincich, Margaret A. McManus, Karina J. Nielsen, Stephen D. Pierce, and Libe Washburn  

E-print Network

Kirincich, Margaret A. McManus, Karina J. Nielsen, Stephen D. Pierce, and Libe Washburn John A. Barth, BruceManus¶ , Karina J. Nielsen , Stephen D. Pierce*, and Libe Washburn** *College of Oceanic and Atmospheric Sciences

Pierce, Stephen

300

Contacts: John Baker, MSU AgBioResearch Associate Director, (517) 355-0123 Stephen B. Lovejoy, MSU Extension Associate Director of Programs, (517) 355-2308  

E-print Network

Contacts: John Baker, MSU AgBioResearch Associate Director, (517) 355-0123 Stephen B. Lovejoy, MSU Peninsula," said Stephen B. Lovejoy, MSU Extension associate director of programs. Three MSU faculty members

301

Who Invented the Word Asteroid: William Herschel or Stephen Weston?  

NASA Astrophysics Data System (ADS)

William Herschel made the first serious study of 1 Ceres and 2 Pallas in the year 1802. He was moved by their dissimilarities to the other planets to coin a new term to distinguish them. For this purpose he enlisted the aid of his good friends William Watson and Sir Joseph Banks. Watson gave him a long list of possible names, which Herschel rejected. With a lifetime of experience classifying and naming newly found objects in nature, Banks became the man both Erasmus Darwin (in 1781) and William Herschel (in 1802) turned to for sage advice in developing a new descriptive language. In the case of Ceres and Pallas, Banks turned the task over to his friend, the noted philologist Stephen Weston, FRS. It has recently been stated by a noted British historian that it was Weston - not Herschel - who coined the term 'asteroid' to collectively describe Ceres and Pallas. This claim is investigated, and parallels are drawn in the use of neologism in astronomy and botany.

Cunningham, Clifford J.; Orchiston, Wayne

2011-11-01

302

Who Invented the Word Asteroid: William Herschel or Stephen Weston?  

NASA Astrophysics Data System (ADS)

William Herschel made the first serious study of 1 Ceres and 2 Pallas in the year 1802. He was moved by their dissimilarities to the other planets to coin a new term to distinguish them. For this purpose he enlisted the aid of his good friends William Watson and Sir Joseph Banks. Watson gave him a long list of possible names, most of which sound quite ludicrous. With a lifetime of experience classifying and naming newly found objects in nature, Banks became the man both Erasmus Darwin (in 1781) and William Herschel (in 1802) turned to for sage advice in developing a new descriptive language. In the case of Ceres and Pallas, Banks turned the task over to his friend, the noted philologist Stephen Weston FRS. It has recently been stated by a noted British historian that it was Weston- not Herschel- who coined the term "asteroid" to collectively describe Ceres and Pallas. This claim is investigated, and parallels are drawn in the use of neologism in astronomy and botany.

Cunningham, Clifford J.

2011-01-01

303

AN ABSTRACT OF THE THESIS OF Stephen D. Pierce for the degree of Doctor of Philosophy in Oceanography presented on May 6,  

E-print Network

AN ABSTRACT OF THE THESIS OF Stephen D. Pierce for the degree of Doctor of Philosophy is continuous over a 440 km length. #12;© Copyright by Stephen D. Pierce 6 May 1998 All Rights Reserved #12 by Stephen D. Pierce A THESIS submitted to Oregon State University in partial fulfillment of the requirements

Pierce, Stephen

304

Design and Analysis of Line Transect Surveys for Primates Stephen T. Buckland Andrew J. Plumptre Len Thomas Eric A. Rexstad  

E-print Network

1 1 2 3 4 5 Design and Analysis of Line Transect Surveys for Primates Stephen T. Buckland · Andrew transect surveys for primates Corresponding author: S.T. Buckland, CREEM, The Observatory, Buchanan Gardens 35 36 37 38 39 40 41 Design and Analysis of Line Transect Surveys for Primates Stephen T. Buckland

Thomas, Len

305

Stephen L. Morgan, Department of Chemistry & Biochemistry, University of South Carolina, 2014. 1 Department of Chemistry & Biochemistry  

E-print Network

Stephen L. Morgan, Department of Chemistry & Biochemistry, University of South Carolina, 2014. 1 Department of Chemistry & Biochemistry The University of South Carolina USC Chemistry & Biochemistry Safety Email: morgan@mail.chem.sc.edu Stephen L. Morgan, Department of Chemistry & Biochemistry, University

Morgan, Stephen L.

306

The Ascent of Science  

NASA Astrophysics Data System (ADS)

From the revolutionary discoveries of Galileo and Newton to the mind-bending theories of Einstein and Heisenberg, from plate tectonics to particle physics, from the origin of life to universal entropy, and from biology to cosmology, here is a sweeping, readable, and dynamic account of the whole of Western science.In the approachable manner and method of Stephen Jay Gould and Carl Sagan, the late Brian L. Silver translates our most important, and often most obscure, scientific developments into a vernacular that is not only accessible and illuminating but also enjoyable. Silver makes his comprehensive case with much clarity and insight; his book aptly locates science as the apex of human reason, and reason as our best path to the truth. For all readers curious about--or else perhaps intimidated by--what Silver calls "the scientific campaign up to now", The Ascent of Science will be fresh, vivid, and fascinating reading.

Silver, Brian L.

2000-04-01

307

History of Influences in the Development of Intelligence Theory and Testing  

NSDL National Science Digital Library

Developed by two professors of education at Indiana University, this Website gives a comprehensive overview of the field of intelligence theory and testing from Plato to the present day. Using an "interactive map," the site offers a timeline of the major figures in the field and their affiliations with one another. Users can click on names, time periods, or schools to access more in-depth information. The site's "Hot Topics" section is particularly interesting, giving substantial material relating to some of the most controversial issues in intelligence theory, including an extensive section-by-section summary of the bestseller The Bell Curve and article-length rebuttals by scholars, including one by anthropologist Stephen Jay Gould.

Monson, John A.; Plucker, Jonathan.

308

The Scala naturae revisited: evolutionary scales and anagenesis in comparative psychology.  

PubMed

Recent suggestions that evolutionary scales have a place in theorization about the evolution of behavior have been based on the concept of anagenesis, formerly associated with notions of biological progress. An associated concept is that of grades, often used as units of anagenetic advance. Advocates of anagenetic analysis in comparative psychology cite the writings of biologists Bernard Rensch, Julian Huxley, George Gaylord Simpson, and Stephen Jay Gould to support the usefulness of anagenesis but treat the positions of each of these theorists as if they were the same. In fact, they differ considerably in their definition of anagenesis and in its application to specific issues in evolution. The anagenetic approach is criticized as axiological and frequently anthropocentric. Although the formation of grades can be useful, a sequence of grades must not be assumed to represent historical stages in the evolution of specific structures or behaviors. PMID:1935002

Campbell, C B; Hodos, W

1991-09-01

309

[Interactions between genetics and environment].  

PubMed

From a scientific point of view, the idea that genes exert an important role in explaining human pathology has gained much popularity in recent decades. However, according to Stephen Jay Gould, the "genetic fallacy" has been repeatedly used to avoid environmental action. In the case of occupational cancer, genetic screening of workers for their susceptibility to the action of chemical carcinogens, on the basis of "metabolic polymorphisms", would be unacceptable because of racial discrimination, related to uneven racial distribution of most polymorphisms, for example, 90% of Africans and 10% of Asians have the "slow" acetylator genotype. Therefore, not only technical and scientific aspects of genetic susceptibility to cancer, but also ethical and social implication have to be considered. PMID:9673101

Vineis, P

1998-01-01

310

Self-organized criticality and punctuated equilibria  

NASA Astrophysics Data System (ADS)

Many natural phenomena evolve intermittently, with periods of tranquillity interrupted by bursts of activity, rather than following a smooth gradual path. Examples include earthquakes, volcanic eruptions, solar flares, gamma-ray bursts, and biological evolution. Stephen Jay Gould and Niles Eldredge have coined the term “punctuated equilibria” for this behavior. We argue that punctuated equilibria reflects the tendency of dynamical systems to evolve towards a critical state, and review recent work on simple models. A good metaphoric picture is one where the systems are temporarily trapped in valleys of deformable, interacting landscapes. Similarities with spin glasses are pointed out. Punctuated equilibria are essential for the emergence of complex phenomena. The periods of stasis allow the system to remember its past history; yet the intermittent events permit further change.

Bak, Per; Boettcher, Stefan

1997-02-01

311

Congruent population structure inferred from dispersal behaviour and intensive genetic surveys of the threatened Florida scrub-jay (Aphelocoma c??rulescens)  

USGS Publications Warehouse

The delimitation of populations, defined as groups of individuals linked by gene flow, is possible by the analysis of genetic markers and also by spatial models based on dispersal probabilities across a landscape. We combined these two complimentary methods to define the spatial pattern of genetic structure among remaining populations of the threatened Florida scrub-jay, a species for which dispersal ability is unusually well-characterized. The range-wide population was intensively censused in the 1990s, and a metapopulation model defined population boundaries based on predicted dispersal-mediated demographic connectivity. We subjected genotypes from more than 1000 individual jays screened at 20 microsatellite loci to two Bayesian clustering methods. We describe a consensus method for identifying common features across many replicated clustering runs. Ten genetically differentiated groups exist across the present-day range of the Florida scrub-jay. These groups are largely consistent with the dispersal-defined metapopulations, which assume very limited dispersal ability. Some genetic groups comprise more than one metapopulation, likely because these genetically similar metapopulations were sundered only recently by habitat alteration. The combined reconstructions of population structure based on genetics and dispersal-mediated demographic connectivity provide a robust depiction of the current genetic and demographic organization of this species, reflecting past and present levels of dispersal among occupied habitat patches. The differentiation of populations into 10 genetic groups adds urgency to management efforts aimed at preserving what remains of genetic variation in this dwindling species, by maintaining viable populations of all genetically differentiated and geographically isolated populations. ?? 2008 The Authors.

Coulon, A.; Fitzpatrick, J.W.; Bowman, R.; Stith, B.M.; Makarewich, C.A.; Stenzler, L.M.; Lovette, I.J.

2008-01-01

312

Translocons, thermodynamics, and the folding of membrane proteins Stephen H. White  

E-print Network

Minireview Translocons, thermodynamics, and the folding of membrane proteins Stephen H. White for the prediction of structure from amino acid sequence. Membrane proteins reside stably in a thermodynamic free- bly of the ribosome^translocon machine, a MP resides stably in a thermodynamic free energy minimum

White, Stephen

313

Friction in Mid-latitude Bob Plant, Stephen Belcher, Bob Beare, Andy Brown  

E-print Network

Friction in Mid-latitude Cyclones Ian Boutle Bob Plant, Stephen Belcher, Bob Beare, Andy Brown #12;Motivation · Many studies have shown the significance of friction in formation and dissipation of cyclones Dt = + � . F . Diabatic Term: · Surface heat fluxes · Latent heat fluxes Frictional Term

Plant, Robert

314

Controlled, Scalable Embryonic Stem Cell Differentiation Culture STEPHEN M. DANG,a  

E-print Network

Controlled, Scalable Embryonic Stem Cell Differentiation Culture STEPHEN M. DANG,a SHARON GERECHT · Embryonic stem cells · Embryoid body · Scalable ABSTRACT Embryonic stem (ES) cells are of significantMed Press 1066-5099/2004/$12.00/0 INTRODUCTION Embryonic stem (ES) cells are pluripotent cells capable

Zandstra, Peter W.

315

Nanoscale NMR Spectroscopy and Imaging of Multiple Nuclear Stephen J. DeVience,1,  

E-print Network

Nanoscale NMR Spectroscopy and Imaging of Multiple Nuclear Species Stephen J. DeVience,1, Linh M nanoscale NMR spectroscopy and imaging under ambient conditions of samples containing multiple nuclear (NMR) spectroscopy and magnetic resonance imaging (MRI) provide non-invasive information about multiple

Walsworth, Ronald L.

316

Microfluidics in structural biology: smaller, faster. . . better Carl Hansen and Stephen R Quake  

E-print Network

Microfluidics in structural biology: smaller, faster. . . better Carl Hansen and Stephen R QuakeÃ? Microfluidic technologies promise unprecedented savings in cost and time through the integration of complex of this vision a reality, facilitating the first large-scale integration of microfluidic plumbing with biological

Hansen, Carl L.

317

Simulating Cartoon Style Animation Stephen Chenney Mark Pingel Rob Iverson Marcin Szymanski  

E-print Network

Simulating Cartoon Style Animation Stephen Chenney Mark Pingel Rob Iverson Marcin Szymanski method is focused on squash-and-stretch deformations based on the velocity and collision parameters, such as the degree of squash and stretch. We demonstrate our approach with examples from our prototype system

DeCarlo, Doug

318

Stable Statistics of the Blogograph Mark Goldberg, Malik Magdon-Ismail, Stephen Kelley, Konstantin Mertsalov  

E-print Network

Stable Statistics of the Blogograph Mark Goldberg, Malik Magdon-Ismail, Stephen Kelley, Konstantin on the social network's dynamics. In this paper, we present a number of non-trivial statistics believe that sta- ble statistics can be used to identify anomalous behavior at all levels: that of a node

Goldberg, Mark

319

A Prism-based System for Multispectral Video Acquisition Stephen Lin  

E-print Network

A Prism-based System for Multispectral Video Acquisition Hao Du Xin Tong Xun Cao§ Stephen Lin In this paper, we propose a prism-based system for cap- turing multispectral videos. The system consists of a tri- angular prism, a monochrome camera, and an occlusion mask. Incoming light beams from the scene

Rajamani, Sriram K.

320

Immunization Record Form Complete & Fax or Mail: Stephen F Austin State University  

E-print Network

Immunization Record Form Complete & Fax or Mail: Stephen F Austin State University Student Health ____________________________________________________________________ IMMUNIZATIONS DATE(S) GIVEN Meningitis Vaccine (Meningococcal Conjugate Vaccine MCV4 or MPSV4) Tetanus (Chicken Pox) OTHER IMMUNIZATIONS Human Papillomavirus Vaccine (HPV) DATE OF LAST TB TEST DATE OF LAST

Long, Nicholas

321

A BULK BLOWING SNOW MODEL STEPHEN J. DRY and M. K. YAU  

E-print Network

A BULK BLOWING SNOW MODEL STEPHEN J. DÃ?RY and M. K. YAU Department of Atmospheric and Oceanic model that de- picts a column of sublimating, blowing snow. This bulk model predicts the mixing ratio of suspended snow by solving an equation that considers the diffusion, settling and sublimation of blowing snow

Dery, Stephen

322

Stephen D. Heglund, Ph.D., ARNP University of Central Florida College of Nursing  

E-print Network

Stephen D. Heglund, Ph.D., ARNP University of Central Florida College of Nursing 12201 Research, Emergency Nursing Research 2004 MSN University of Central Florida, Orlando, FL Family Primary Care Clinical of Central Florida, Orlando, FL Indian River community College Nursing Education Nursing Nunrsing Educator

Wu, Shin-Tson

323

Power/Knowledge for Educational Theory: Stephen Ball and the Reception of Foucault  

ERIC Educational Resources Information Center

This paper explores the significance of the concept of power/knowledge in educational theory. The argument proceeds in two main parts. In the first, I consider aspects of Stephen J. Ball's highly influential work in educational theory. I examine his reception of Foucault's concept of power/knowledge and suggest that there are problems in his…

Wang, Chia-Ling

2011-01-01

324

Interpretive Research & Evaluation FOR 569-501, 588, Stephen F. Austin State University  

E-print Network

) identifying appropriate research topics, (2) choosing between qualitative and quantitative approaches, (3 research: Planning, conducting and evaluating quantitative and qualitative research (3rd ed.). Upper SaddleSYLLABUS 1 Interpretive Research & Evaluation FOR 569-501, 588, Stephen F. Austin State University

Coble, Theresa G.

325

Evaluating Display Types for AR Selection and Annotation Jason Wither Stephen DiVerdi Tobias Hollerer  

E-print Network

in augmented reality (AR). We compare three different display types ­ a head mounted display and two hand held primarily used head mounted displays (HMDs) for visual output. There are many reasons for this design choiceEvaluating Display Types for AR Selection and Annotation Jason Wither Stephen DiVerdi Tobias H

Hollerer, Tobias

326

Strategic Safety Stock Placement In Supply Chains Stephen C. Graves Sean P. Willems  

E-print Network

Strategic Safety Stock Placement In Supply Chains Stephen C. Graves · Sean P. Willems Massachusetts time is to be met from inventory. Finally each stage operates with a base-stock control policy; that is of this savings is due to a coordinated strategy for setting safety stocks to protect against uncertainty

Graves, Stephen C.

327

Debris dams and the relief of headwater streams Stephen T. Lancaster a,, Gordon E. Grant b  

E-print Network

Debris dams and the relief of headwater streams Stephen T. Lancaster a,, Gordon E. Grant b, mountain landscapes where debris flows are common, their deposition commonly forms valley-spanning dams of debris dams on the evolution of headwater valley profiles over geologic time are examined. In the Oregon

328

GABLE: A Matlab Tutorial for Geometric Algebra Leo Dorst, Stephen Mann, and Tim Bouma  

E-print Network

GABLE: A Matlab Tutorial for Geometric Algebra Leo Dorst, Stephen Mann, and Tim Bouma December 3, 2002 Abstract In this tutorial we give an introduction to geometric algebra, using our Matlab pack- age GABLE (Geometric AlgeBra Learning Environment). In the geometric algebra for 3- dimensional Euclidean

Waterloo, University of

329

Computing Singularities of 3D Vector Fields with Geometric Algebra Stephen Mann  

E-print Network

Computing Singularities of 3D Vector Fields with Geometric Algebra Stephen Mann University. Considerable work exists in 2D, but less is available for 3D or higher dimensions. Geometric Algebra describe the problems in terms of Geometric Algebra and present an octree based solution using the algebra

Mann, Stephen

330

Using Mobile Phones to Interact with Tabletop Computers Christopher McAdam, Stephen Brewster  

E-print Network

Using Mobile Phones to Interact with Tabletop Computers Christopher McAdam, Stephen Brewster at the same time, and many are likely to be carrying mobile phones. We examine different ways of performing interac- tions in this multi-device ecology. We conducted a study into the use of a phone as a controller

Williamson, John

331

In or Out? Putting Write Barriers in Their Place Stephen M Blackburn  

E-print Network

In or Out? Putting Write Barriers in Their Place Stephen M Blackburn #3; Department of Computer mckinley@cs.utexas.edu ABSTRACT In many garbage collected systems, the mutator performs a write barrier options for remembered­ set write barriers: inlined, out­of­line, and partially inlined (fast path inlined

Massachusetts at Amherst, University of

332

Improved Routing Wasps for Distributed Factory Control Vincent A. Cicirello and Stephen F. Smith  

E-print Network

Improved Routing Wasps for Distributed Factory Control Vincent A. Cicirello and Stephen F. Smith approach to coordinating factory routing and scheduling based on a computational model of wasp behavior. The natural multi-agent sys- tem of the wasp colony is highly effective in self- organizing the allocation

Cicirello, Vincent A.

333

Tripping with Stephen Gaskin: An Exploration of a Hippy Adult Educator  

ERIC Educational Resources Information Center

For the last 40 years, Stephen Gaskin has been an adult educator on the fringe, working with tens of thousands of adults in the counterculture movement in pursuit of social change regarding marijuana legalization, women's rights, environmental justice issues and beyond. Gaskin has written 11 books about his experiences teaching and learning…

Morley, Gabriel Patrick

2012-01-01

334

Light-trapping in dye-sensitized solar cells Stephen Foster* and Sajeev John  

E-print Network

-third enhancement in solar light absorption and power conversion efficiency relative to their conventional researched is the dye-sensitized solar cell (DSSC). These cells are inexpensive to make and boast powerLight-trapping in dye-sensitized solar cells Stephen Foster* and Sajeev John We demonstrate

John, Sajeev

335

Aerosol Observing Systems (AOS), New Capabilities for ASR Researchers Stephen R. Springston (srs@bnl.gov)  

E-print Network

in ~2 h o Enclosure provides laboratory environment for instruments (land/marine) o Space available train site operators in system safety and daytoday instrument procedures. Because of the wide varietyAerosol Observing Systems (AOS), New Capabilities for ASR Researchers Stephen R. Springston (srs

336

The Status of Diporeia spp. in Lake Ontario, 1994-Stephen J. Lozano1  

E-print Network

233 The Status of Diporeia spp. in Lake Ontario, 1994- 1997 Stephen J. Lozano1 DOC/NOAA Great Lakes in Lake Ontario between 1994 and 1997 revealed a recent decline in Diporeia spp. (Amphipoda) abundance on fish production in Lake Ontario. Introduction The abundance of the deep-water amphipod, Diporeia spp

337

Time Warp Football Stephen G. Lynn, Dan R. Olsen, Jr., Brett G. Partridge  

E-print Network

Time Warp Football Stephen G. Lynn, Dan R. Olsen, Jr., Brett G. Partridge Computer Science@cs.byu.edu, bgpartridge@gmail.com ABSTRACT We describe a system called Time Warp Football (TWF) which puts fans in control fans of American Football sit down to watch their favorite team, they have little control over

Olsen Jr., Dan R.

338

Contributions of Stephen J. Ball to the Research on Educational and Curriculum Policies in Brazil  

ERIC Educational Resources Information Center

This article aims at showcasing the main contributions of Stephen J. Ball to educational research in Brazil, particularly to the study of educational and curriculum policies. We also highlight some of the limitations in the incorporation of Ball's ideas in Brazil as well as some of the challenges that these author's ideas pose to…

Mainardes, Jefferson; Gandin, Luis Armando

2013-01-01

339

A long state vector Kalman filter for speech enhancement Stephen So and Kuldip K. Paliwal  

E-print Network

A long state vector Kalman filter for speech enhancement Stephen So and Kuldip K. Paliwal Signal.so@griffith.edu.au, k.paliwal@griffith.edu.au Abstract In this paper, we investigate a long state vector Kalman filter studies that a vector Kalman filter achieves better enhance- ment than the scalar Kalman filter

340

Connecting Changing Ocean Circulation with Changing Climate MICHAEL WINTON, STEPHEN M. GRIFFIES, AND BONITA L. SAMUELS  

E-print Network

Connecting Changing Ocean Circulation with Changing Climate MICHAEL WINTON, STEPHEN M. GRIFFIES are allowed to respond. Hence, ocean circulation changes potentially act to warm the surface climate. However the equator. 1. Introduction Climate models project large changes in ocean circu- lation in response

Rodgers, Keith

341

Dellaporta DNA Extraction Citation: Stephen L. Dellaporta,Jonathan Wood , James B. Hicks. A plant DNA  

E-print Network

1 Dellaporta DNA Extraction Citation: Stephen L. Dellaporta,Jonathan Wood , James B. Hicks. A plant DNA minipreparation: Version II. Plant Molecular Biology Reporter, 1983, Volume 1, Issue 4, pp 19 supernatant and lightly dry DNA pellets by inverting the tubes on paper towels for 10 min. #12;4 12

Wurtele, Eve Syrkin

342

Fan-out: Measuring Human Control of Multiple Robots Dan R. Olsen Jr., Stephen Bart Wood  

E-print Network

on are not detailed cognitive or ergonomic models but rather measures for comparing competing human-robot interfacesFan-out: Measuring Human Control of Multiple Robots Dan R. Olsen Jr., Stephen Bart Wood Brigham_wood@yahoo.com ABSTRACT A goal of human-robot interaction is to allow one user to operate multiple robots simultaneously

Olsen Jr., Dan R.

343

A Study Guide for Stephen B. Oates' "The Fires of Jubilee: Nat Turner's Fierce Rebellion"  

ERIC Educational Resources Information Center

This document is a study guide for Stephen B. Oates biography of Nat Turner, "The Fires of Jubilee." The book is a practical reading vehicle for introducing Nat Turner to secondary students in grades 11 and 12. Oates divides his work into four parts, which could provide the basis for four reading assignments, although the sections are not of equal…

Briley, Ron

2006-01-01

344

Iterated Filters for Bearing-Only SLAM Stephen Tully, Hyungpil Moon, George Kantor, and Howie Choset  

E-print Network

Iterated Filters for Bearing-Only SLAM Stephen Tully, Hyungpil Moon, George Kantor, and Howie step for the problem of bearing-only SLAM. We focus on an undelayed approach that initializes a landmark after only one bearing measurement. Traditionally, the extended Kalman filter (EKF) has been used

Choset, Howie

345

Static Energy Reduction Techniques in Microprocessor Caches Heather Hanson, Stephen W. Keckler, Doug Burger  

E-print Network

Static Energy Reduction Techniques in Microprocessor Caches Heather Hanson, Stephen W. Keckler. This report examines the effect of technology scaling on static power and energy dissipation and evaluates three techniques to reduce static energy in primary and secondary microprocessor caches. We examine

Burger, Doug

346

STEPHEN CRANE'S "THE O'RUDDY"--A PROBLEM IN AUTHORSHIP DISCRIMINATION.  

ERIC Educational Resources Information Center

THE PURPOSE OF THIS ANALYSIS WAS TO DISCOVER CERTAIN ASPECTS OF STYLE (BOTH LEXICAL AND GRAMMATICAL) WHICH COULD BE COUNTED AND WHICH WOULD, WHEN COMPARED, DIFFERENTIATE BETWEEN THE WRITTEN PROSE OF TWO AUTHORS. THE SUBJECT SELECTED FOR ANALYSIS WAS "THE O'RUDDY," BEGUN BY STEPHEN CRANE AND COMPLETED BY ROBERT BARR. SINCE THERE WAS NO RECORD OF…

O'DONNELL, BERNARD

347

NOVEMBER 2007AMERICAN METEOROLOGICAL SOCIETY | 1723 AFFILIATIONS: HAYNES, LUO, AND STEPHENS--Department of  

E-print Network

NOVEMBER 2007AMERICAN METEOROLOGICAL SOCIETY | 1723 AFFILIATIONS: HAYNES, LUO, AND STEPHENS, CO 80523 E-mail: haynes@atmos.colostate.edu DOI:10.1175/BAMS-88-11-1723 ©2007 American Meteorological to the meteorological unit of radar reflectivity, expressed in decibels (dBZ). Retrievals of quantities like cloud water

Lombardi, John R.

348

Void theory of nucleation in liquids R. Stephen Berry1 and Boris M. Smirnov2  

E-print Network

Void theory of nucleation in liquids R. Stephen Berry1 and Boris M. Smirnov2 1Department from the solid state by the presence of voids inside the system, we consider the growth of the solid nucleus in the liquid as a result of the transport of voids. Establishment of equilibrium between

Berry, R. Stephen

349

Stephen Brooks / s.j.brooks@rl.ac.uk UKNF meeting, Warwick, April 2008  

E-print Network

Stephen Brooks / s.j.brooks@rl.ac.uk UKNF meeting, Warwick, April 2008 Pion Production from Water-Cooled of current UKNF solid target 2. Pros and cons related to water cooling 3. Results from MARS 15.07 ­ Including Where does the proton beam power go? 12.9% 24.3% 62.8% Heat deposited in target Kinetic energy

McDonald, Kirk

350

How Large Is the World Wide Web? Adrian Dobra Stephen E. Fienberg  

E-print Network

How Large Is the World Wide Web? Adrian Dobra Stephen E. Fienberg National Institute of Department of the World Wide Web is extremely difficult because sampling directly from the Web is not possible. Several of the World Wide Web. Keywords Contingency tables; Markov chain Monte Carlo methods; Multiple­recapture models

Fienberg, Stephen E.

351

Gaze Step Distributions Reflect Fixations and Saccades: A Comment on Stephen and Mirman (2010)  

ERIC Educational Resources Information Center

In three experimental tasks Stephen and Mirman (2010) measured gaze steps, the distance in pixels between gaze positions on successive samples from an eyetracker. They argued that the distribution of gaze steps is best fit by the lognormal distribution, and based on this analysis they concluded that interactive cognitive processes underlie eye…

Bogartz, Richard S.; Staub, Adrian

2012-01-01

352

Braess's Paradox in Large Sparse Graphs Fan Chung and Stephen J. Young  

E-print Network

Braess's Paradox in Large Sparse Graphs Fan Chung and Stephen J. Young Department of Mathematics University of California, San Diego 9500 Gilman Drive La Jolla, CA 92093 {fan,s7young}@math.ucsd.edu Abstract situations understanding this paradox has become an important concern in a broad range of network design

Graham, Fan Chung

353

Theory of eddy current inversion Stephen:J. Nortona) and John FL Bowler  

E-print Network

Theory of eddy current inversion Stephen:J. Nortona) and John FL Bowler University of Surrey) The inverse eddy current problem can be described as the task of reconstructing an unknown distribution of electrical conductivity from eddy-current probe impedance measurements recorded as a function of probe

Bowler, John R.

354

Space in Language and Cognition : Explorations in Cognitive Diversity Stephen C. Levinson  

E-print Network

Space in Language and Cognition : Explorations in Cognitive Diversity Stephen C. Levinson Language, Culture & Cognition 5 Cambridge University Press, 2003 xxiii 389p The relation between language answer. S. Levinson's monograph `Space in Language and Cognition' (henceforth SILC) is about the relation

Paris-Sud XI, Université de

355

Mantle discontinuities beneath Southern Africa Stephen S. Gao,1,2  

E-print Network

Mantle discontinuities beneath Southern Africa Stephen S. Gao,1,2 Paul G. Silver,3 Kelly H. Liu,1] Seismic velocity discontinuities within the top 1000 km of the Earth beneath southern Africa are imaged, we are in an ideal position to characterize the discontinuity structure beneath southern Africa. [3

van der Lee, Suzan

356

Stephen Schneider and the "Double Ethical Bind" of Climate Change Communication  

ERIC Educational Resources Information Center

Stephen Schneider's perspective on climate change communication is distinguished by its longevity, a keen anticipation of research findings, historical understanding, and grounding in first-person experience. In this article, the author elaborates Schneider's work in terms of its key claims, suggestive research directions, and lessons for…

Russill, Chris

2010-01-01

357

Global climate change and the scientific consensus Stephen Mulkey, PhD  

E-print Network

1 Global climate change and the scientific consensus Stephen Mulkey, PhD Director of Research scientists. As scientists, our job is to present the data on climate change and to propose plausible recreate the Earth's climate in a laboratory bottle and change its composition to see what happens. Instead

Watson, Craig A.

358

A Device to Treat Achilles Tendinopathy Katie Bruce, Stephen Chen, Jennifer Elkin, Conor Fitzgerald, Julie Rekant  

E-print Network

A Device to Treat Achilles Tendinopathy Katie Bruce, Stephen Chen, Jennifer Elkin, Conor Fitzgerald of Achilles, trouble walking, running, and jumping The Design The Injury Background Achilles tendinopathy;11(5):327. [3]Maffulli, Sharma, and Luscombe. Achilles tendinopathy: aetiology and management. Journal

McGaughey, Alan

359

FireCrystal: Understanding Interactive Behaviors in Dynamic Web Pages Stephen Oney and Brad Myers  

E-print Network

to helping with them. 1.2. HTML, CSS, Javascript, and the DOM In most interactive web pages, the HTMLFireCrystal: Understanding Interactive Behaviors in Dynamic Web Pages Stephen Oney and Brad Myers details of interactive behaviors, understanding how web pages work is a fundamental problem. Fire

Myers, Brad A.

360

Audio and User Directed Sound Synthesis Marc Cardle, Stephen Brooks, Peter Robinson  

E-print Network

, artists are faced with the daunting task of finding, recording or generating appropriate sound effectsAudio and User Directed Sound Synthesis Marc Cardle, Stephen Brooks, Peter Robinson Computer by the user in the form of large-scale properties of the sound texture. For instance, by specifying where

Brooks, Stephen

361

Embedded Firmware Diversity for Smart Electric Meters Stephen McLaughlin, Dmitry Podkuiko, Adam Delozier  

E-print Network

Embedded Firmware Diversity for Smart Electric Meters Stephen McLaughlin, Dmitry Podkuiko, Adam also be enormously expensive: current systems re- quire physical access to reliably update firmware and re- pair or replace physical components. In the few systems that do support over-the-wire firmware

McDaniel, Patrick Drew

362

Automated Landscape Painting in the Style of Bob Ross Alex Kalaidjian Craig S. Kaplan Stephen Mann  

E-print Network

Automated Landscape Painting in the Style of Bob Ross Alex Kalaidjian · Craig S. Kaplan · Stephen is a notable exception. He left behind a complete and explicit record, in print and on video. His paintings cut Ross's painting technique down to the stroke level. It can gener- ate infinite variations of his

Waterloo, University of

363

FOSSIL ENERGY, CO2, CLIMATE CHANGE, AND THE AEROSOL PROBLEM Stephen E. Schwartz  

E-print Network

(energy penalty). Consequently, until alternative energy sources are developed or a practical meansFOSSIL ENERGY, CO2, CLIMATE CHANGE, AND THE AEROSOL PROBLEM Stephen E. Schwartz For presentation of Energy Office of Science ABSTRACT Climate change due to increasing atmospheric carbon dioxide differs

364

DECOMPOSITION RESULTS FOR GRAM MATRIX DETERMINANTS TEODOR BANICA AND STEPHEN CURRAN  

E-print Network

DECOMPOSITION RESULTS FOR GRAM MATRIX DETERMINANTS TEODOR BANICA AND STEPHEN CURRAN Abstract. We study the Gram matrix determinants for the groups Sn, On, Bn, Hn, for their free versions S+ n , O+ n representation theory invariants of the quantum group are encoded in a certain associated matrix Gkn, called Gram

Banica, Teodor

365

Current status of native fish species in Kansas STEPHEN G. HASLOUER,1  

E-print Network

Current status of native fish species in Kansas STEPHEN G. HASLOUER,1 MARK E. EBERLE,2 DAVID R DONALD G. HUGGINS7 AND WILLIAM J. STARK2 1. Division of Environment, Kansas Department of Health and Environment, 1000 SW Jackson St., Topeka, Kansas 66612 (shasloue@kdhe.state.ks.us) 2. Department of Biological

Gido, Keith B.

366

Thermal Conductivity of Periclase (MgO) from First Principles Stephen Stackhouse*  

E-print Network

Thermal Conductivity of Periclase (MgO) from First Principles Stephen Stackhouse* Department thermal conductivity k of periclase (MgO) up to conditions representative of the Earth's core, 83.10.Rs Thermal conductivity is central to our understanding of planetary evolution as it sets

Stixrude, Lars

367

Mobile Multi-Actuator Tactile Displays Eve Hoggan, Sohail Anwar and Stephen A. Brewster  

E-print Network

Mobile Multi-Actuator Tactile Displays Eve Hoggan, Sohail Anwar and Stephen A. Brewster Glasgow in such situations. However, most applications only use a single actuator to present vibrotactile information investigating the perception and application of multi- actuator tactile displays situated on a mobile device

Williamson, John

368

A Protein Map and Its Application Stephen S.-T. Yau,1,2  

E-print Network

A Protein Map and Its Application Stephen S.-T. Yau,1,2 Chenglong Yu,3 and Rong He4 Graphical. Here we first report a two-dimensional graphical representation for protein sequences. With this method, we constructed the moment vectors for protein sequences, and mathematically proved that the corre

Yu, Chenglong

369

Old World Monkeys Stephen R Frost, University of Oregon, Eugene, Oregon, USA  

E-print Network

Old World Monkeys Stephen R Frost, University of Oregon, Eugene, Oregon, USA Alfred L Rosenberger) article, Old World Monkeys by Walter Carl Hartwig and Alfred L Rosenberger. Old World monkeys (hominoids) than they are to the monkeys of Central and South America. Introduction Old World monkeys

Rosenberger, Alfred H.

370

Modelling eruption cycles and decay of mud volcanoes Anna Zoporowski*, Stephen A. Miller  

E-print Network

Modelling eruption cycles and decay of mud volcanoes Anna Zoporowski*, Stephen A. Miller March 2009 Available online 31 March 2009 Keywords: Mud volcano model Cyclic eruption Conduit processes Viscous flow a b s t r a c t Recent debates about the eruptive behavior of mud volcanoes

Manga, Michael

371

NEOS: Optimization on the Internet Joseph Czyzyk y Jonathan H. Owen z Stephen J. Wright y  

E-print Network

NEOS: Optimization on the Internet Joseph Czyzyk y Jonathan H. Owen z Stephen J. Wright y June 30, Illinois 60439 z Department of Industrial Engineering and Management Sci­ ences, Robert R. McCormick School is dynamic by nature---it changes on a fairly short time scale---and the Web is the obvious way to de­ liver

Wright, Steve

372

College of Public Health Dean of the College of Public Health is Stephen W.  

E-print Network

239C College of Public Health Dean of the College of Public Health is Stephen W. Wyatt. Linda J is Director of Admissions. Paulette Johnson is Director of Student Affairs. The College of Public Health Adefiningcharacteristicoftheareaofpub- lic health is its focus on population groups rather than individuals. Public health profes

MacAdam, Keith

373

College of Public Health Dean of the College of Public Health is Stephen W.  

E-print Network

236 C College of Public Health Dean of the College of Public Health is Stephen W. Wyatt. Linda J Crosby is Chair, Health Behaviors. The College of Public Health A defining characteristic of the area of publichealthisitsfocusonpopulationgroups rather than individuals. Public health profes- sionals are concerned with the health of com

MacAdam, Keith

374

Fan Broadband Noise Shielding for Over-Wing Engines Stephen Powell, Andras Sobester, Phillip Joseph  

E-print Network

;1 INTRODUCTION the trailing edge of the wing would become unnecessary[4], and the size of the landing gear wouldFan Broadband Noise Shielding for Over-Wing Engines Stephen Powell, Andr´as S´obester, Phillip community noise targets are promoting noise perfor- mance ever higher on the list of airliner design drivers

Sóbester, András

375

SPACES OF MATRICES OF BOUNDED RANK By M. D. ATKINSON and N. M. STEPHENS  

E-print Network

SPACES OF MATRICES OF BOUNDED RANK By M. D. ATKINSON and N. M. STEPHENS [Received 28 October 1977] IN this paper we shall consider matrices over a field F and shall prove the following result: THEOREM. Let M be a 2-dimensional space o/mxn matrices with the property that rank (X) *£ k M

Atkinson, Mike

376

Estimating bird abundance: making methods STEPHEN T. BUCKLAND, STUART J. MARSDEN and RHYS E. GREEN  

E-print Network

Estimating bird abundance: making methods work STEPHEN T. BUCKLAND, STUART J. MARSDEN and RHYS E. GREEN Summary In many bird monitoring surveys, no attempt is made to estimate bird densities or abundance. Instead, counts of one form or another are made, and these are assumed to correlate with bird

Buckland, Steve

377

Do the right thing: the Stephen Lawrence Inquiry Report 10 years on  

Microsoft Academic Search

The Stephen Lawrence Inquiry Report was published in 1999. This article reviews the impact of the Report on agency responses to racially motivated crime and hate crime over the last ten years. While there have been improvements arising from implementation of the Report's recommendations, there have equally been unintended outcomes, including: compliance with the Report as a superficial measure of

Kevin Wong

2009-01-01

378

Tom Glavich, Robert O. Green, Simon J. Hook, Betsy Middleton Francois Rogez, Stephen Ungar  

E-print Network

Tom Glavich, Robert O. Green, Simon J. Hook, Betsy Middleton Francois Rogez, Stephen Ungar Presented by Robert O. Green February 11-12, 2009 NASA Headquarters #12;Visible ShortWave InfraRed (VSWIR. Green, S. Hook, E. Middleton, S. Ungar 31 member scientists Science oversights, Mission Dev. and Sci

Christian, Eric

379

Study of Iceberg BlOA using Scatterometer Data Haroon Stephen and David G. Long  

E-print Network

Study of Iceberg BlOA using Scatterometer Data Haroon Stephen and David G. Long Brigham Young-378-6586 Abstract- The Antarctic continent continually releases glacial ice into the ocean in the form of icebergs about the spatial and temporal behavior of large icebergs. In this paper, re- sults from the observation

Long, David G.

380

Eocene–Oligocene global climate and sea-level changes: St. Stephens Quarry, Alabama  

Microsoft Academic Search

We integrate upper Eocene-lower Oli- gocene lithostratigraphic, magnetostrati- graphic, biostratigraphic, stable isotopic, benthic foraminiferal faunal, downhole log, and sequence stratigraphic studies from the Alabama St. Stephens Quarry (SSQ) core hole, linking global ice volume, sea level, and temperature changes through the greenhouse to icehouse transition of the Cenozoic. We show that the SSQ succession is dissected by hiatuses associated with

Kenneth G. Miller; James V. Browning; Marie-Pierre Aubry; Bridget S. Wade; Miriam E. Katz; Andrew A. Kulpecz; James D. Wright

2008-01-01

381

Optical Tomography for media with variable index of refraction STEPHEN MCDOWALL  

E-print Network

Optical Tomography for media with variable index of refraction STEPHEN MCDOWALL Abstract Optical of a medium M Rn . If the refractive index is constant throughout the medium, the steady-state case of variable refractive index where the dynamics are modeled by writing the transport equation in terms

McDowall, Stephen

382

High Dynamic Range Video with Ghost Removal Stephen Mangiat and Jerry Gibson  

E-print Network

of experience, and this problem will be worsened as mobile devices move conferences outdoors. A VC scenario alsoHigh Dynamic Range Video with Ghost Removal Stephen Mangiat and Jerry Gibson University media using "tone mapping".1 E-mail: {smangiat, gibson}@ece.ucsb.edu (a) (b) (c) Figure 1. (a) Low

Liebling, Michael

383

Standards Panel: 1. Stephen Diamond, General Manager, Industry Standards Office and Global Standards Officer, EMC  

E-print Network

NT 3.1, 4.0, 2000 and Windows 95 and 98 as well as Windows Communication Foundation, among others. HeStandards Panel: 1. Stephen Diamond, General Manager, Industry Standards Office and Global was President of the IEEE Computer Society. Steve is General Manager of the Industry Standards Office at EMC

384

Stephen F.Austin State University Fall2003 Arthur Temple Collegeof Forestry  

E-print Network

1 Stephen F.Austin State University Fall2003 Arthur Temple Collegeof Forestry NEWSLETTER PO Box path. Within hours College of Forestry faculty, staff, students and alumni were involved, not just to follow an exact bearing line in the woods. We are proud of the role the College of Forestry played

Hung, I-Kuai

385

Lane Reservation for Highways (Position Paper) Nishkam Ravi, Stephen Smaldone, and Liviu Iftode  

E-print Network

Lane Reservation for Highways (Position Paper) Nishkam Ravi, Stephen Smaldone, and Liviu Iftode reservation system for highways. The idea is to allow drivers to reserve a slot on a high-priority lane points on the highway. We describe the design of our system, the challenges that need to be solved

Iftode, Liviu

386

Testing the marine and continental fossil records: Comment and Reply Stephen K. Donovan*  

E-print Network

Testing the marine and continental fossil records: Comment and Reply COMMENT Stephen K. Donovan, D.C. 20560 Benton and Simms (1995) have presented a fascinating com- parative analysis of the fossil (1995, p. 603) that ``the surprisingly good quality of the continental vertebrate fossil record may

Benton, Michael

387

A first-generation microsatellite-based genetic linkage map of the Siberian jay (Perisoreus infaustus): insights into avian genome evolution  

PubMed Central

Background Genomic resources for the majority of free-living vertebrates of ecological and evolutionary importance are scarce. Therefore, linkage maps with high-density genome coverage are needed for progress in genomics of wild species. The Siberian jay (Perisoreus infaustus; Corvidae) is a passerine bird which has been subject to lots of research in the areas of ecology and evolutionary biology. Knowledge of its genome structure and organization is required to advance our understanding of the genetic basis of ecologically important traits in this species, as well as to provide insights into avian genome evolution. Results We describe the first genetic linkage map of Siberian jay constructed using 117 microsatellites and a mapping pedigree of 349 animals representing five families from a natural population breeding in western Finland from the years 1975 to 2006. Markers were resolved into nine autosomal and a Z-chromosome-specific linkage group, 10 markers remaining unlinked. The best-position map with the most likely positions of all significantly linked loci had a total sex-average size of 862.8 cM, with an average interval distance of 9.69 cM. The female map covered 988.4 cM, whereas the male map covered only 774 cM. The Z-chromosome linkage group comprised six markers, three pseudoautosomal and three sex-specific loci, and spanned 10.6 cM in females and 48.9 cM in males. Eighty-one of the mapped loci could be ordered on a framework map with odds of >1000:1 covering a total size of 809.6 cM in females and 694.2 cM in males. Significant sex specific distortions towards reduced male recombination rates were revealed in the entire best-position map as well as within two autosomal linkage groups. Comparative mapping between Siberian jay and chicken anchored 22 homologous loci on 6 different linkage groups corresponding to chicken chromosomes Gga1, 2, 3, 4, 5, and Z. Quite a few cases of intra-chromosomal rearrangements within the autosomes and three cases of inter-chromosomal rearrangement between the Siberian jay autosomal linkage groups (LG1, LG2 and LG3) and the chicken sex chromosome GgaZ were observed, suggesting a conserved synteny, but changes in marker order, within autosomes during about 100 million years of avian evolution. Conclusion The constructed linkage map represents a valuable resource for intraspecific genomics of Siberian jay, as well as for avian comparative genomic studies. Apart from providing novel insights into sex-specific recombination rates and patterns, the described maps – from a previously genomically uncharacterized superfamily (Corvidae) of passerine birds – provide new insights into avian genome evolution. In combination with high-resolution data on quantitative trait variability from the study population, they also provide a foundation for QTL-mapping studies. PMID:19121221

Jaari, Sonja; Li, Meng-Hua; Merilä, Juha

2009-01-01

388

Abstract of "Static Analyses of Cryptographic Protocols" by Jay McCarthy, Ph.D., Brown University, May Most protocol analyses only address security properties. However, other properties are important and can in-  

E-print Network

. It avoids the need to create a new tool-chain, however, by com- piling protocol descriptions) Approved by the Graduate Council Date Sheila Bonde Dean of the Graduate School iii #12;Biography Jay McCarthy was born in the sleepy town of Dunstable, Massachusetts on the twenty-third of June, 1985. He is the son

Seamons, Kent E.

389

HMGB in Mollusk Crassostrea ariakensis Gould: Structure, Pro-Inflammatory Cytokine Function Characterization and Anti-Infection Role of Its Antibody  

PubMed Central

Background Crassostrea ariakensis Gould is a representative bivalve species and an economically important oyster in China, but suffers severe mortalities in recent years that are caused by rickettsia-like organism (RLO). Prevention and control of this disease is a priority for the development of oyster aquaculture. It has been proven that mammalian HMGB (high mobility group box) can be released extracellularly and acts as an important pro-inflammatory cytokine and late mediator of inflammatory reactions. In vertebrates, HMGB’s antibody (anti-HMGB) has been shown to confer significant protection against certain local and systemic inflammatory diseases. Therefore, we investigated the functions of Ca-HMGB (oyster HMGB) and anti-CaHMGB (Ca-HMGB’s antibody) in oyster RLO/LPS (RLO or LPS)-induced disease or inflammation. Methodology/Principal Findings Sequencing analysis revealed Ca-HMGB shares conserved structures with mammalians. Tissue-specific expression indicates that Ca-HMGB has higher relative expression in hemocytes. Significant continuous up-regulation of Ca-HMGB was detected when the hemocytes were stimulated with RLO/LPS. Recombinant Ca-HMGB protein significantly up-regulated the expression levels of some cytokines. Indirect immunofluorescence study revealed that Ca-HMGB localized both in the hemocyte nucleus and cytoplasm before RLO challenge, but mainly in the cytoplasm 12 h after challenge. Western blot analysis demonstrated Ca-HMGB was released extracellularly 4–12 h after RLO challenge. Anti-CaHMGB was added to the RLO/LPS-challenged hemocyte monolayer and real-time RT-PCR showed that administration of anti-CaHMGB dramatically reduced the rate of RLO/LPS-induced up-regulation of LITAF at 4–12 h after treatment. Flow cytometry analysis indicated that administration of anti-CaHMGB reduced RLO/LPS-induced hemocyte apoptosis and necrosis rates. Conclusions/Significance Ca-HMGB can be released extracellularly and its subcellular localization varies when stimulated with RLO. Ca-HMGB is involved in oyster immune reactions and functions as a pro-inflammatory cytokine. Anti-CaHMGB can significantly suppress RLO/LPS-induced inflammatory responses and hemocyte necrosis and apoptosis, suggesting that Ca-HMGB is a potential target to prevent and control RLO/LPS-induced disease or inflammation. PMID:23209826

Xu, Ting; Ye, Shigen; Luo, Ming; Zhu, Zewen; Wu, Xinzhong

2012-01-01

390

UXO DISCRIMINATION USING TIME DOMAIN ELECTROMAGNETIC INDUCTION Leonard R. Pasion, Stephen D. Billings, and Douglas W. Oldenburg  

E-print Network

UXO DISCRIMINATION USING TIME DOMAIN ELECTROMAGNETIC INDUCTION Leonard R. Pasion, Stephen D with a variety of geophysical sensing techniques. Time domain electromagnetic induction (TEM) surveys have been adequately reproduce the measured electromagnetic anomaly with minimal computational effort. The validity

Oldenburg, Douglas W.

391

TOEPLITZ-STRUCTURED COMPRESSED SENSING MATRICES Waheed U. Bajwa*, Jarvis D. Haupt*, Gil M. Raz**, Stephen J. Wright***, and Robert D. Nowak*  

E-print Network

**, Stephen J. Wright***, and Robert D. Nowak* *Department of Electrical and Computer Engineering, University algorithms; and (iii) Toeplitz-structured matrices arise naturally in certain application areas

Haupt, Jarvis

392

A review of "Demon Lovers: Witchcraft, Sex, and the Crisis of Belief." by Walter Stephens  

E-print Network

the ?general reader,? it is a valuable addition to Donne studies. Walter Stephens. Demon Lovers: Witchcraft, Sex, and the Crisis of Belief. Chicago: University of Chicago Press, 2002. xv + 451 pp. $35.00. Review by THOMAS MOISAN, SAINT LOUIS UNIVERSITY.... Those drawn to the faintly sensational title of this engaging and learned study are advised not to overlook the end of its subtitle: ?the Crisis of Belief.? Closely interrogating an array of documents reporting corporeal interactions of demons...

Thomas Moisan

2004-01-01

393

Why don't zebras have machine guns? Adaptation, selection, and constraints in evolutionary theory.  

PubMed

In an influential paper, Stephen Jay Gould and Richard Lewontin (1979) contrasted selection-driven adaptation with phylogenetic, architectural, and developmental constraints as distinct causes of phenotypic evolution. In subsequent publications Gould (e.g., 1997a,b, 2002) has elaborated this distinction into one between a narrow "Darwinian Fundamentalist" emphasis on "external functionalist" processes, and a more inclusive "pluralist" emphasis on "internal structuralist" principles. Although theoretical integration of functionalist and structuralist explanations is the ultimate aim, natural selection and internal constraints are treated as distinct causes of evolutionary change. This distinction is now routinely taken for granted in the literature in evolutionary biology. I argue that this distinction is problematic because the effects attributed to non-selective constraints are more parsimoniously explained as the ordinary effects of selection itself. Although it may still be a useful shorthand to speak of phylogenetic, architectural, and developmental constraints on phenotypic evolution, it is important to understand that such "constraints" do not constitute an alternative set of causes of evolutionary change. The result of this analysis is a clearer understanding of the relationship between adaptation, selection and constraints as explanatory concepts in evolutionary theory. PMID:18331960

Shanahan, Timothy

2008-03-01

394

From weird wonders to stem lineages: the second reclassification of the Burgess Shale fauna.  

PubMed

The Burgess Shale, a set of fossil beds containing the exquisitely preserved remains of marine invertebrate organisms from shortly after the Cambrian explosion, was discovered in 1909, and first brought to widespread popular attention by Stephen Jay Gould in his 1989 bestseller Wonderful life: The Burgess Shale and the nature of history. Gould contrasted the initial interpretation of these fossils, in which they were 'shoehorned' into modern groups, with the first major reexamination begun in the 1960s, when the creatures were perceived as 'weird wonders', possessing unique body plans and unrelated to modern organisms. More recently, a third phase of Burgess Shale studies has arisen, which has not yet been historically examined. This third phase represents a revolutionary new understanding, brought about, I believe, by a change in taxonomic methodology that led to a new perception of the Burgess creatures, and a new way to comprehend their relationships with modern organisms. The adoption of cladistics, and its corollary, the stem group concept, has forged a new understanding of the Burgess Shale ... but has it also changed the questions we are allowed to ask about evolution? PMID:18761282

Brysse, Keynyn

2008-09-01

395

Paleontology at the "high table"? Popularization and disciplinary status in recent paleontology.  

PubMed

This paper examines the way in which paleontologists used "popular books" to call for a broader "expanded synthesis" of evolutionary biology. Beginning in the 1970s, a group of influential paleontologists, including Stephen Jay Gould, Niles Eldredge, David Raup, Steven Stanley, and others, aggressively promoted a new theoretical, evolutionary approach to the fossil record as an important revision of the existing synthetic view of Darwinism. This work had a transformative effect within the discipline of paleontology. However, by the 1980s, paleontologists began making their case to a wider audience, both within evolutionary biology, and to the general public. Many of their books-for example, Eldredge's provocatively-titled Unfinished Synthesis-explicitly argued that the received synthetic view of Darwinian evolution was incomplete, and that paleontological contributions such as punctuated equilibria, the hierarchical model of macroevolution, and the study of mass extinction dynamics offered a substantial corrective to evolutionary theory. This paper argues that books-far from being "mere popularizations" of scientific ideas-played an important role in disciplinary debates surrounding evolutionary theory during the 1980s, and in particular that paleontologists like Gould and Eldredge self-consciously adopted the book format because of the importance of that genre in the history of evolutionary biology. PMID:24346060

Sepkoski, David

2014-03-01

396

The genus Alphitobius Stephens (Coleoptera, Tenebrionidae, Alphitobiini) in Africa and adjacent islands  

PubMed Central

Abstract All species of the genus Alphitobius Stephens, 1829 (Alphitobiini Reitter, 1917, subfamily Tenebrioninae Latreille, 1802) from Africa and adjacent islands are revised. New species: Alphitobius capitaneus sp. n. from Kenya. New synonyms: Cryptops ulomoides Solier, 1851, syn. n. of Alphitobius diaperinus (Panzer, 1796); Alphitobius rufus Ardoin, 1976, syn. n. of Alphitobius hobohmi Koch, 1953); Peltoides (Micropeltoides) crypticoides Pic, 1916, syn. n. of Peltoides (Micropeltoides) opacus (Gerstaecker, 1871), comb. n. Homonym: Alphitobius ulomoides Koch, 1953 = Alphitobius arnoldi nom. n. New combinations from Alphitobius: Ulomoides basilewskyi (Ardoin, 1969), comb. n.; Peltoides (Micropeltoides) opacus (Gerstaecker, 1871), comb. n. Figures of all examined species are added and a species key is compiled. PMID:25009427

Schawaller, Wolfgang; Grimm, Roland

2014-01-01

397

Festschrift in the Honor of Stephen H. White’s 70th Birthday  

PubMed Central

The Symposium ‘Frontiers in membrane and membrane protein biophysics: experiments and theory’, held this year at the University of California, Irvine (August 19–20), celebrated the 70th Birthday of Stephen H. White by bringing together distinguished experimentalists and theoreticians to discuss the state of the art and future challenges in the field of membrane and membrane protein biophysics. The meeting and this special issue highlight the highly interdisciplinary nature of membrane and membrane protein biophysics, and the tremendous contributions that S. H. White and his lab have brought to the field. PMID:21191785

2010-01-01

398

Staff Sergeant James C. Stephens Jr., 11th Bombardment Group, 42nd Squadron  

E-print Network

have some closure on the disappearance of our brother James C. Stephens Jr. My father knew that his son was a crew member on a B-17 and that he had been a survivor of the Japanese attack on Pearl Harbor, but as the war progressed he knew little... and their approximate time of service in the group. Among the attendees were four Pearl Harbor survivors. None were from Jimmie’s 42 nd Squadron and most entered the theatre of war in a time period from late 1943 until almost the end of the war in 1945...

Stephens, Paul; Stephens, Paul

2008-07-30

399

Stephen Hawking Physics Colloquium Lectures (title provided or enhanced by cataloger)  

NSDL National Science Digital Library

These lectures by Stephen Hawking are divided into physics colloquium lectures (where at least undergraduate knowledge of physics is assumed), and public lectures. The public lectures include: The Beginning of Time, The Nature of Space and Time, Space and Time Warps, Does God Play Dice, and Life in the Universe. The physics colloquium lectures include: Inflation: An Open and Shut Case; Gravitational Entropy; Quantum Cosmology, M-theory and the Anthropic Principle; Rotation, Nut Charge, and Anti de Sitter Space; Stability of AdS and Phase Transitions; and The Future of Quantum Cosmology.

Hawking, Stephen

400

A review of "Demon Lovers: Witchcraft, Sex, and the Crisis of Belief." by Walter Stephens  

E-print Network

to its source? in every sense of the term. Walter Stephens. Demon Lovers: Witchcraft, Sex, and the Crisis of Belief. Chicago: University of Chicago Press, 2002. xv + 451 pp. + 16 halftones + 2 diagrams. Cloth $35.00; Paper $20.00. Review by WILLIAM E... to witchcraft, though in ways not generally assumed. Specifically, necromancers were not stereotyped as sex REVIEWS 203 partners of demons, not simply because they were men but be- cause, being men, they could read. Since most women were illiter- ate...

William E. Engel

2003-01-01

401

A review of "The Religious Foundations of Francis Bacon’s Thought." by Stephen A. McKnight  

E-print Network

of major literary works in the period. As a result, I am certain it will come to shape our understanding of the complex relations between Reformation moral theory and soteriology. Stephen A. McKnight. The Religious Foundations of Francis Bacon?s Thought.... Columbia: University of Missouri Press, 2006. xi + 193 pp + 2 illus. $37.50. Review by STEVEN MATTHEWS, THE UNIVERSITY OF MINNESOTA, DULUTH. The title of Stephen McKnight?s most recent book, The Religious Founda- tions of Francis Bacon?s Thought, may...

Matthews, Steven

2006-01-01

402

Diet and feeding behavior of the White-naped Jay, Cyanocorax cyanopogon (Wied, 1821) (Aves, Passeriformes, Corvidae) in a disturbed environment in central Brazil.  

PubMed

The White-naped Jay Cyanocorax cyanopogon (Wied, 1821) is an omnivorous and opportunistic species, with a multifarious diet. In view of the scarcity of available data in the literature, the aim was to investigate and describe the bird's diet, location of food items, foraging tactics, actual feeding behavior and intraspecific interactions, as a means of defining the items consumed. The study was carried out in a Cerrado area in the Araguaia Campus of the Federal University of Mato Grosso - UFMT, in Pontal do Araguaia, Mato Grosso State, Brazil, from August to December, 2006, and from April to October, 2010. All the feeding events were recorded through 136 hours of animal focal sampling, whereby it was shown that these birds predominantly consume animal nutrients, replenished by vegetable items and human food-waste. Arthropods were predominant in the diet, with ants as the most abundant and frequent item. The fruits, flowers and seeds of eleven plant species were also consumed. Food-waste, representing about 1/10 of the total, was constantly consumed even when other food sources were available. Although active among the various strata, foraging is mainly on the ground. In the event of food-scarcity, the strategy employed is the hierarchical deployment of the members of various-sized groups, with the avoidance of direct competition. This versatility during all seasons, confirms total adaptation to the anthropic environment surrounded by native habitats that characterized the study site. PMID:25627601

Barros, Ram; Costa, Ca; Pascotto, Mc

2014-11-01

403

SIZE DISTRIBUTION OF SEA SPRAY FROM INDIVIDUAL BREAKING WAVES Ernie R. Lewis, Gunnar Senum, Stephen E Schwartz,  

E-print Network

of the magnitude and shape (i.e., dependence on particle size) of the production flux of sea spray aerosol, "Production flux of sea-spray aerosol," Rev. Geophys., 49, RG2001, 2011. doi:10.1029/2010RG000349SIZE DISTRIBUTION OF SEA SPRAY FROM INDIVIDUAL BREAKING WAVES Ernie R. Lewis, Gunnar Senum, Stephen

404

A Heuristic Method for Statistical Digital Circuit Sizing Stephen Boyda, Seung-Jean Kima, Dinesh Patilb, Mark Horowitzb  

E-print Network

A Heuristic Method for Statistical Digital Circuit Sizing Stephen Boyda, Seung-Jean Kima, Dinesh University, CA, USA 94305 ABSTRACT In this paper we give a brief overview of a heuristic method for approximately solving a statistical digital circuit sizing problem, by reducing it to a related deterministic

405

Chaetocnema Stephens, 1831 (Insecta, Coleoptera): proposed conservation of usage by designation of Altica hortensis Geoffroy, 1785 as the type species  

Technology Transfer Automated Retrieval System (TEKTRAN)

The purpose of this application, in relation to Article 70 of the Code, is to conserve the widespread usage of the generic name Chaetocnema Stephens, 1831 for a group for flea beetles (Chrysomelidae: Alticini) by validating Maulik’s (1926) designation of Altica hortensis Geoffroy, 1785 as the types ...

406

Novel Interfaces for Digital Cameras and Camera Phones Christopher McAdam, Craig Pinkerton and Stephen A. Brewster  

E-print Network

Novel Interfaces for Digital Cameras and Camera Phones Christopher McAdam, Craig Pinkerton.dcs.gla.ac.uk/~stephen ABSTRACT Camera phones are now very common but there are some usabil- ity issues that affect their use lead to shots being missed or poorly exposed. Most camera phones do not take full advantage

Williamson, John

407

Dynamic Networks for Motion Planning in Multi-Robot Space Systems Christopher M. Clark & Stephen M. Rock  

E-print Network

Dynamic Networks for Motion Planning in Multi-Robot Space Systems Christopher M. Clark & Stephen M A new motion planning framework is presented that enables multiple mobile robots with limited ranges in the network. But planning over several robot networks is decentralized and distributed. The trajectory of each

Pratt, Vaughan

408

Dean of the College of Public Health is Stephen W. Wyatt. William G. Pfeifle is Associate Dean for Academic  

E-print Network

Dean of the College of Public Health is Stephen W. Wyatt. William G. Pfeifle is Associate Dean for Institutional Advancement and Student Affairs. The College of Public Health A defining characteristic of the area of public health is its focus on population groups rather than individuals. Public health

MacAdam, Keith

409

Dean of the College of Public Health is Stephen W. Wyatt. Linda J. Alexander is Associate Dean for Academic  

E-print Network

Dean of the College of Public Health is Stephen W. Wyatt. Linda J. Alexander is Associate Dean is Director of Student Affairs. The College of Public Health A defining characteristic of the area of public health is its focus on population groups rather than individuals. Public health professionals

MacAdam, Keith

410

Just-In-Time Context-Sensitive Questioning for Preventative Health Care Stephen S. Intille Kent Larson Chuck Kukla  

E-print Network

Just-In-Time Context-Sensitive Questioning for Preventative Health Care Stephen S. Intille Kent intelligence researchers: the development of technologies that enable a new type of "proactive health care traditional health care, could be funded entirely by consumers without reliance on the financially

411

Inverse scattering for optical coherence Tyler S. Ralston, Daniel L. Marks, P. Scott Carney, and Stephen A. Boppart  

E-print Network

Carney, and Stephen A. Boppart Beckman Institute for Advanced Science and Technology, Department Society of America OCIS codes: 170.4500, 110.6960, 110.6880, 110.1650, 100.6950, 100.6890. 1. BACKGROUND a relatively uniform resolution within the sample has been a concern, since apparent morphology affects the way

Bhargava, Rohit

412

Server-Side Parallel Data Reduction and Daniel L. Wang, Charles S. Zender, and Stephen F. Jenks  

E-print Network

Server-Side Parallel Data Reduction and Analysis Daniel L. Wang, Charles S. Zender, and Stephen F capability al- lows it to detect dependencies, optimize I/O, and dynamically parallelize execution. Benchmarks quantify the drastic reduction in transfer time, computation time, and end-to-end execution time

Zender, Charles

413

School Choice Research in Five European Countries: The Circulation of Stephen Ball's Concepts and Interpretations  

ERIC Educational Resources Information Center

This article analyzes the influence of Stephen Ball's work on research on markets and school choice in five European countries (Finland, France, Norway, Spain, and Sweden). The main focus is on the intellectual circulation of ideas, but the authors also take into account the relationship between ideas and social and political changes, as well…

van Zanten, Agnès; Kosunen, Sonja

2013-01-01

414

Improving the Fault Resilience of Overlay Multicast for Media Streaming Guang Tan, Stephen A. Jarvis and Daniel P. Spooner  

E-print Network

Improving the Fault Resilience of Overlay Multicast for Media Streaming Guang Tan, Stephen A resilience of overlay-based live media streaming from two aspects: (1) how to construct a stable multicast techniques to enhance the fault resilience of live media streaming: the Reliability-Oriented Switching Tree

Jarvis, Stephen

415

Chris Stephens' invited talk at EuroGP 2003. EC Theory A tale of Elephants, Blind Men and Soup!  

E-print Network

Chris Stephens' invited talk at EuroGP 2003. EC Theory ­ A tale of Elephants, Blind Men and Soup soup, the EC theory elephant and parent-guidance warning marks for slides containing hardcore be about, i.e. different (myopic) views on the EC theory elephant. The need for a unifying theory

Yao, Xin

416

Declining Oxygen in the Northeast Pacific* STEPHEN D. PIERCE, JOHN A. BARTH, R. KIPP SHEARMAN, AND ANATOLI Y. EROFEEV  

E-print Network

Declining Oxygen in the Northeast Pacific* STEPHEN D. PIERCE, JOHN A. BARTH, R. KIPP SHEARMAN a decrease in oceanic dissolved oxygen and a thickening of the oxygen minimum zone, associated with global warming. Comprehensive observational analyses of oxygen decline are chal- lenging, given generally sparse

Pierce, Stephen

417

The Video Wall Project Video Technology at the Leading Edge in Education Stephen Giles and David Abramson,  

E-print Network

into the application of high­speed networks (Internet2, Next Generation Internet) in higher education and there haveThe Video Wall Project ­ Video Technology at the Leading Edge in Education Stephen Giles and David Abramson, School of Computer Science and Software Engineering, Faculty of Information Technology, Monash

Abramson, David

418

Stability of Individual and Group Behavior in a Blog Network Stephen Kelley, Mark Goldberg, Malik Magdon-Ismail, Konstantin Mertsalov  

E-print Network

Stability of Individual and Group Behavior in a Blog Network Stephen Kelley, Mark Goldberg, Malik different no- tions of stability of the behavior of individuals and groups in a network of blogs. Our experiments are conducted on data collected from LiveJournal. All stability notions aim to locate stable

Magdon-Ismail, Malik

419

Single-Particle Colloid Tracking in Four Dimensions Stephen M. Anthony, Liang Hong, Minsu Kim, and Steve Granick*,,,  

E-print Network

Single-Particle Colloid Tracking in Four Dimensions Stephen M. Anthony, Liang Hong, Minsu Kim-packed fluorescent colloid monolayer with a nanometer-thick metal film followed by sonication in liquid produces and co-workers, showed that rotational diffusion can be tracked with single-particle resolu- tion.13

Granick, Steve

420

Multiple roles for orexin/hypocretin in addiction Stephen V. Mahler, Rachel J. Smith, David E. Moorman,  

E-print Network

CHAPTER 7 Multiple roles for orexin/hypocretin in addiction Stephen V. Mahler, Rachel J. Smith involved in arousal and wakefulness, but also play a critical role in drug addiction and reward-related behaviors. Here, we review the roles played by orexins in a variety of animal models of drug addiction

Aston-Jones, Gary

421

The Singular Value Decomposition for Polynomial Systems Robert M. Corless Patrizia M. Gianni Barry M. Trager Stephen M. Watt  

E-print Network

visit of RMC to the Center. This research also benefited from the contribution of C.N.R., M.U.R.S.T, CECThe Singular Value Decomposition for Polynomial Systems Robert M. Corless Patrizia M. Gianni Barry M. Trager Stephen M. Watt IBM T. J. Watson Research Center Yorktown Heights, NY 10598 USA Abstract

Watt, Stephen M.

422

Globalization, Edu-Business and Network Governance: The Policy Sociology of Stephen J. Ball and Rethinking Education Policy Analysis  

ERIC Educational Resources Information Center

This paper traces developments across Stephen J. Ball's policy sociology in education "oeuvre" and considers their implications for doing research on education policy today. It begins with an account of his policy sociology trilogy from the 1990s, which outlined his conception of the policy cycle consisting of the contexts of…

Lingard, Bob; Sellar, Sam

2013-01-01

423

Rel-grams: A Probabilistic Model of Relations in Text Niranjan Balasubramanian, Stephen Soderland, Mausam, and Oren Etzioni  

E-print Network

Rel-grams: A Probabilistic Model of Relations in Text Niranjan Balasubramanian, Stephen Soderland We introduce the Rel-grams language model, which is analogous to an n-grams model, but is computed of Rel-grams co-occurence statistics from Re- Verb extractions over 1.8M news wire docu- ments and show

Mausam

424

Chief Stephen's Parky: One Year in the Life of an Athapascan Girl. The Council for Indian Education Series.  

ERIC Educational Resources Information Center

This book tells the fictional story of Olga, the wife of Chief Stephen, leader of a Tanaina Athapascan village on Cook Inlet, northwest of Anchorage, Alaska. Olga works for one full year with great courage and independence trapping ground squirrels and gathering materials needed to tan, dye, and sew furs to make a parka for her husband. She uses…

Chandonnet, Ann

425

Unsupervised Learning of Micro-Action Exemplars using a Product Manifold Stephen O'Hara and Bruce A. Draper  

E-print Network

This paper presents a completely unsupervised mech- anism for learning micro-actions in continuous video- uous video streams. In this paper, we present a method of unsupervised learn- ing of human microUnsupervised Learning of Micro-Action Exemplars using a Product Manifold Stephen O'Hara and Bruce A

Draper, Bruce A.

426

Precipitation of auroral protons in detached arcs Thomas J. Immel, Stephen B. Mende, Harald U. Frey, Laura M. Peticolas,  

E-print Network

Precipitation of auroral protons in detached arcs Thomas J. Immel, Stephen B. Mende, Harald U. Frey of particle precipitation at sub-auroral latitudes on the dayside. The signature of this precipitation is seen conjunction with the FAST satellite demonstrates the presence of precipitating protons and the notable absence

California at Berkeley, University of

427

The Remote Sensing of Clouds and Precipitation from Space: A Review GRAEME L. STEPHENS AND CHRISTIAN D. KUMMEROW  

E-print Network

definition of the atmospheric state, and the vertical structure of clouds and precipitation, are neededThe Remote Sensing of Clouds and Precipitation from Space: A Review GRAEME L. STEPHENS of a number of popular methods that have been developed to retrieve cloud and precipitation properties from

Stephens, Graeme L.

428

GRIP-2: A Sensitive Balloon-borne Imaging Gamma-ray Stephen M. Schindler, Walter R. Cook, Je rey Hammond,  

E-print Network

GRIP-2: A Sensitive Balloon-borne Imaging Gamma-ray Telescope Stephen M. Schindler, Walter R. Cook Jolla, CA 92093, USA Abstract This paper describes the balloon-borne coded-aperture telescope, GRIP-2 the instrument design, performance, and preliminary results from the rst two balloon ights. 1 Introduction Large

Prince, Thomas A.

429

Towards a Parallel Data Mining Toolbox Peter Christen # Markus Hegland Ole M. Nielsen Stephen Roberts Peter Strazdins  

E-print Network

Towards a Parallel Data Mining Toolbox Peter Christen # Markus Hegland Ole M. Nielsen Stephen­ pects in data mining. First, a toolbox is discussed that al­ lows flexible and interactive data for high dimensional data collections. This is an essential require­ ment for data mining algorithms

Christen, Peter

430

A Pandemic Influenza Modeling and Visualization Tool Ross Maciejewski, Philip Livengood, Stephen Rudolph, Timothy F. Collins, David S. Ebert  

E-print Network

A Pandemic Influenza Modeling and Visualization Tool Ross Maciejewski, Philip Livengood, Stephen Abstract The National Strategy for Pandemic Influenza outlines a plan for community response to a potential pandemic influenza scenario. Spread vectors based on the point of origin and distance traveled over time

Maciejewski, Ross

431

14.7 ADJUSTMENT OF A RURAL BOUNDARY LAYER TO A HEATED URBAN CANOPY Omduth Coceal and Stephen E. Belcher  

E-print Network

14.7 ADJUSTMENT OF A RURAL BOUNDARY LAYER TO A HEATED URBAN CANOPY Omduth Coceal and Stephen E. Belcher Department of Meteorology, University of Reading, U.K. 1. INTRODUCTION Urban areas affect regional. The boundary layer in turn drives the street-level circulations within urban areas, which again affect mixing

Reading, University of

432

THE TURBULENT EXCHANGE WITHIN AN URBAN STREET CANYON Ian N. Harman*, Janet F. Barlow*, Stephen E. Belcher*  

E-print Network

is not accurately known or understood. A model for the turbulent exchange in an urban street canyon is presented models. 2. MODELLING A model for the turbulent flux of a scalar from the four facets of an urban streetTHE TURBULENT EXCHANGE WITHIN AN URBAN STREET CANYON Ian N. Harman*, Janet F. Barlow*, Stephen E

Reading, University of

433

Prion infection of mouse neurospheres Ranjit K. Giri*, Rebecca Young*, Rose Pitstick*, Stephen J. DeArmond  

E-print Network

Prion infection of mouse neurospheres Ranjit K. Giri*, Rebecca Young*, Rose Pitstick*, Stephen J. Prusiner, December 20, 2005 Only a few cell lines have been infected with prions, offering limited genetic prion protein (PrPC) can be infected with prions. Neurosphere lines isolated from the brains of mice

Giri, Ranjit K.

434

As part of NASA's 50th anniversary, Stephen Hawking offers his latest thoughts on the universe  

NSDL National Science Digital Library

Hawking: Unintelligent life is likely on other planetshttp://www.washingtonpost.com/wp-dyn/content/article/2008/04/21/AR2008042102393.htmlStephen Hawkinghttp://hawking.org.uk/home/hindex.htmlToday/Interview with Stephen Hawking [Real Player]http://www.bbc.co.uk/radio4/today/reports/archive/science_nature/hawking.shtmlNASA 50th Anniversary Website [Macromedia Flash Player]http://www.nasa.gov/50th/home/index.htmlSETI@homehttp://setiathome.berkeley.edu/Astrophysicist Stephen Hawking is known the world over for his myriad accomplishments, which include best-selling books on the history of the universe, his musings on black holes, and of course, his guest appearance on the television show, "The Simpsons". This Monday, Hawking gave a lecture at George Washington University in honor of NASA's 50th anniversary where he outlined some of his latest thoughts on the cosmos. During his remarks he noted that there may in fact be alien life somewhere out in space, but that in general "Primitive life is very common and intelligent life is fairly rare." Hawking went on to suggest that alien abduction claims come from "weirdos", and remain very unlikely. He also made a bold call for continued human space exploration and suggested that the current situation regarding space conquest is akin to "Europe before 1492." Never one to shy away from a timely quip, Hawking noted that if explorers hadn't come to the New World, "we would not have a Big Mac or KFC." The first link will take users to an article from the BBC News service which talks about Hawking's lecture and also offers a set of related links. The second link leads to a piece which appeared in this Monday's Washington Post that offers additional coverage of the lecture. Moving on, the third link leads to Hawking's homepage. Here visitors can learn about his work, academic background, and various publications. The fourth link leads to an interview with Hawking conducted for the BBC's radio program, "Today". The fifth link leads to NASA's 50th Anniversary website. It's full of interesting activities and interactive timelines and exhibits about NASA's past. For those who want to help out with the search for extraterrestrial intelligence, the sixth and final link will be a real find. Visitors can download the SETI software from this site to help analyze radio telescope data, and it takes up a relatively small amount of space on one's computer.

Grinnell, Max

2008-04-25

435

Spatially explicit Integrated Population Models as tools for understanding biodiversity change To be supervised by Diana Cole (University of Kent) and Stephen Baillie (British Trust for Ornithology)  

E-print Network

To be supervised by Diana Cole (University of Kent) and Stephen Baillie (British Trust for Ornithology) Background for Ornithology (BTO). The work will build on recent research at the BTO and the University of Kent, on a strong

Banaji,. Murad

436

Arthur Georges, Alex E. Quinn, Stephen D. Sarre, Tariq E. Ezaz and Jenny Marshall-Graves (2008). Sex as a threshold trait: Overturning traditional paradigms on  

E-print Network

Arthur Georges, Alex E. Quinn, Stephen D. Sarre, Tariq E. Ezaz and Jenny Marshall- Graves (2008D student Alex Quinn and cytogenetic work of postdoctoral fellow Tariq Ezaz. #12;3 malemale femalefemale X

Canberra, University of

437

Stephen Hall Receives 2012 Walter Sullivan Award for Excellence in Science Journalism-Features: Citation  

NASA Astrophysics Data System (ADS)

Stephen Hall, a freelance science writer and science-communication teacher, received the Walter Sullivan Award for Excellence in Science Journalism-Features at the AGU Fall Meeting Honors Ceremony, held on 5 December 2012 in San Francisco, Calif. Hall was honored for the article "At Fault?" published 15 September 2011 in Nature. The article examines the legal, personal, and political repercussions from a 2009 earthquake in L'Aquila, Italy for seismologists who had attempted to convey seismic risk assessments to the public. The 6.3 magnitude quake devastated the medieval town and caused more than 300 deaths. Six scientists and one government official were subsequently convicted of manslaughter and sentenced to prison for inadequately assessing and mischaracterizing the risks to city residents, despite the inexact nature of seismic risk assessment. The Sullivan award is for work published with a deadline pressure of more than 1 week.

Pearson, Helen

2013-01-01

438

Solar space heating for the visitors' center, Stephens College, Columbia, Missouri. Final report  

SciTech Connect

This document is the final report of the solar energy system located at the Visitors' Center on the Stephens College Campus, Columbia, Missouri. The system is installed in a four-story, 15,000 square foot building designed to include the college's Admission Office, nine guest rooms for overnight lodging for official guests of the college, a two-story art gallery, and a Faculty Lounge. The solar energy system is an integral design of the building and utilizes 176 Honeywell/Lennox hydronic flat-plate collectors which use a 50% water-ethylene glycol solution and water-to-water heat exchanger. Solar heated water is stored in a 5000 gallon water storage tank located in the basement equipment room. A natural gas fired hot water boiler supplies hot water when the solar energy heat supply fails to meet the demand. The designed solar contribution is 71% of the heating load. The demonstration period for this project ends June 30, 1984.

Not Available

1980-06-01

439

Straight talk with...Stephen O'Brien. Interviewed by Elie Dolgin.  

PubMed

Stephen O'Brien joined the US National Cancer Institute as a post doc in 1971 and climbed the ranks to become head of the institute's Laboratory of Genomic Diversity, a position he held for 25 years. But, after four decades at the government agency, O'Brien was ready for something new. In December 2011, he stepped down and took up a three-year, $5 million 'megagrant' in Russia through a program started a year earlier by the Russian Ministry of Education and Science to attract big-name researchers to work at least part-time in that country. O'Brien used his money to help launch the Theodosius Dobzhansky Center for Genome Bioinformatics at Saint Petersburg State University. Although O'Brien is a cancer researcher, he has diverse scientific interests. He led the team that discovered the CCR5-?32 mutation that confers resistance to HIV, and he has helped document the remarkable genetic uniformity of African cheetahs. Recently, he and two California scientists started the Genome 10K project, which aims to sequence the genetic blueprints of 10,000 vertebrate species. On a trip back to the US, O'Brien spoke with Elie Dolgin about how comparative genomics and his new Russian center will help advance the search for new therapeutics. PMID:23295996

O'Brien, Stephen

2013-01-01

440

JAY G. HULL Home Address  

E-print Network

). Feasibility study of an interactive multimedia electronic problem solving treatment program for depression: A preliminary uncontrolled trial. Behavior Therapy, xx, in press. [http://dx.doi.org/10.1016/j.beth.2014's acceptance to high or low status social groups. Journal of Applied Social Psychology, 41, 2538-2550. Lyons, K

Bucci, David J.

441

STATEMENT OF JAY E. HAKES  

E-print Network

Cschools, businesses, and industries. A recent report from the Department of Commerce, The Emerging Digital Economy II to the Internet and the growth of electronic commerce (E-commerce).1 These studies have indicated that E- commerce, in the form of business-to-consumer and business-to-business sales over the Internet, may transform the way

442

Fluid-rock interaction between syenites and marbles at Stephen Cross Quarry, Québec, Canada: petrological and stable isotope data  

Microsoft Academic Search

Grenville dolomitic marbles and calc-silicates at Stephen Cross Quarry, Québec, underwent contact metamorphism and metasomatism associated with the intrusion of the Wakefield syenite at ambient pressures of ~0.4GPa at 1090–1070Ma. Fluid infiltration produced exoskarns, calcite+periclase+forsterite±diopside±orthoclase assemblages in the marbles, and quartz±calcite±wollastonite±diopside±anorthite assemblages in the calc-silicates. Phase-equilibria in the CaO-MgO-Al2O3-SiO2-H2O-CO2 system suggest that fluid infiltration occurred close to the thermal peak

Ian Cartwright; Tamie R. Weaver

1993-01-01

443

Interim Vice President/CFO Administration and Finance  

E-print Network

Capital Project Management Jay Bond Director Physical Plant Willem van der Pol Manager Logistical Services Planning and Management Senior Project Manager Stephen Chamberlain Manager Custodial Services Terri Danny Miranda Manager Service Center Tracey Zuno Manager Commissioning Douglas Kind Associate Director

de Lijser, Peter

444

WITTENBERG UNIVERSITY "PROGRAM ADVISORY" COMMITTEES (As of September 12, 2011)  

E-print Network

Studies Committee D. Scot Hinson, director Molly Wood D. Scot Hinson Stephen Siek David Wishart, spring, Matthew Collier Peter Hanson Jay Yoder Computational Science Committee director tba Eric Stahlberg Steven

Bogaerts, Steven

445

Spring 2012 From President Karen L. Gould  

E-print Network

an environment free from drug and alcohol misuse. Substance abuse is harmful to us all -- academically the use and abuse of drugs, tobacco, and alcohol, whether legal or illegal. Implementation of this policy drugs and alcohol; a description of the health risks associated with the use of illicit drugs

Dexter, Scott

446

EmilieW. Gould August 25, 2011  

E-print Network

workers Training sessions Recognize that global workforce needs nurturing #12; People vary... But do (attitude to risk) Long vs. short term orientation (focus on time) #12;Kluckhohn and Strodtbeck's 6 value orientations Nature of people good | evil | mixture; change | no change Relationship with nature (and

Linhardt, Robert J.

447

The influence of an instructional set on the ability to fake on the Kern Assertiveness Test  

E-print Network

THE INFLUENCE OF AN INSTRUCTIONAL SET ON THE ABILITY TO FAKE ON THE KERN ASSERTIVENESS TEST A Thesis by STEPHEN JAY KARTEN Submitted to the Graduate College of Texas ARM University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE December 1984 Major Subject: Psychology THE INFLUENCE OF AN INSTRUCTIONAL SET ON THE ABILITY TO FAKE ON THE KERN ASSERTIVENESS TEST A Thesis by STEPHEN JAY KARTEN Approved as to style and content by: ef rey M. Kern ( airman...

Karten, Stephen Jay

2012-06-07

448

Synthetic biology: a challenge to mechanical explanations in biology?  

PubMed

In their plans to modify organisms, synthetic biologists have contrasted engineering and tinkering. By drawing this contrast between their endeavors and what has happened during the evolution of organisms by natural selection, they underline the novelty of their projects and justify their ambitions. Synthetic biologists are at odds with a long tradition that has considered organisms as "perfect machines." This tradition had already been questioned by Stephen Jay Gould in the 1970s and received a major blow with the comparison made by François Jacob between organisms and the results of "bricolage" (tinkering). These contrasts between engineering and tinkering, synthetic biology and evolution, have no raison d'être. Machines built by humans are increasingly inspired by observations made on organisms. This is not a simple reversal of the previous trend-the mechanical conception of organisms-in which the characteristics of the latter were explained by comparison with human-built machines. Relations between organisms and machines have always been complex and ambiguous. PMID:23502563

Morange, Michel

2012-01-01

449

Antievolutionism in the Antipodes: from protesting evolution to promoting creationism in New Zealand.  

PubMed

Like other English-speaking peoples around the world, New Zealanders began debating Darwinism in the early 1860s, shortly after the publication of Charles Darwin's Origin of Species. Despite the opposition of some religious and political leaders - and even the odd scientist - biological evolution made deep inroads in a culture that increasingly identified itself as secular. The introduction of pro-evolution curricula and radio broadcasts provoked occasional antievolution outbursts, but creationism remained more an object of ridicule than a threat until the last decades of the twentieth century, when first American and then Australian creationists began fomenting antievolutionism among New Zealanders. Although Stephen Jay Gould assured them in 1986 that they had little to fear from so-called scientific creationism, because it was a 'peculiarly American' phenomenon, scientific creationism by the mid-1990s had captured the allegiance of an estimated five per cent of the country and proved especially attractive to Maori and Pacific Islanders. In 1992 New Zealand creationists formed their own antievolution society, Creation Science (NZ). PMID:11624666

Numbers, R L; Stenhouse, J

2000-09-01

450

French tradition and the rise of Evo-devo.  

PubMed

The limited value most French biologists attributed to Darwinism and Mendelism in the first half of the twentieth century, and their conviction that these theories were at best insufficient to explain evolution and development, probably created conditions propitious to the development of Evo-devo at the end of the century. The separation between embryology and evolution did not exist in French biology as it did in American genetics: explanations for these two phenomena were sought equally in the "organization" of the egg. The major contribution of French biologists to Evo-devo was clearly the invention of the notion of the regulatory gene by Jacob and Monod; not the operon model per se, but the introduction of a hierarchy between two different kinds of genes. The consequence, the rise of the developmental gene concept, was not immediate, and required the active role of other biologists such as Antonio Garcia-Bellido, Allan Wilson and Stephen Jay Gould. Various obstacles had to be overcome for this concept of developmental gene to be fully accepted. PMID:17990019

Morange, Michel

2007-12-01

451

Toward a general theory of adaptive radiation: insights from microbial experimental evolution.  

PubMed

The history of life has been punctuated by unusually spectacular periods of evolutionary diversification called adaptive radiation. Darwin's finches in the Galapagos, cichlid fishes in African Rift and Nicaraguan crater lakes, and the emergence of mammals at the end of the Cretaceous are hallmark examples. Although we have learned much from these and other case studies about the mechanisms thought to drive adaptive radiations, convincing experimental tests of theory are often lacking for the simple reason that it is usually impossible to "rewind the tape of life," as Stephen Jay Gould was fond of saying, and run it again. This situation has changed dramatically in recent years with the increasing emphasis on the use of microbial populations which, because of their small size and rapid generation times, make possible the construction of replicated, manipulative experiments to study evolution in the laboratory. Here I review the contributions that microbial experimental evolution has made to our understanding of the ecological and genetic mechanisms underlying adaptive radiation. I focus on three major gaps in the theory of adaptive radiation--the paucity of direct tests of mechanism, the genetics of diversification, and the limits and constraints on the progress of radiations--with the aim of pointing the way toward the development of a more general theory of adaptive radiation. PMID:19566701

Kassen, Rees

2009-06-01

452

Technology will change universities as it changed the music industry By Stephen Toope, Special to The Globe and Mail April 25, 2013  

E-print Network

Technology will change universities as it changed the music industry By Stephen Toope, Special to the upheaval we've seen in the book, music and video industries. Technologies are driving dramatic new ways is dramatic in developing countries, new learning technologies have the power to revolutionize life

Pulfrey, David L.

453

JavaScript in JavaScript (js.js): Sandboxing third-party scripts Jeff Terrace, Stephen R. Beard, and Naga Praveen Kumar Katta  

E-print Network

JavaScript in JavaScript (js.js): Sandboxing third-party scripts Jeff Terrace, Stephen R. Beard, JavaScript has become a ubiquitous platform for deploy- ing web applications. Unfortunately. In this paper, we present js.js, a JavaScript interpreter (which runs in JavaScript) that allows an application

Singh, Jaswinder Pal

454

Interpolating and forecasting lake characteristics using long-term monitoring data Noah R. Lottig,a,* and Stephen R. Carpenter b  

E-print Network

,a,* and Stephen R. Carpenter b a Center for Limnology, Trout Lake Station, Boulder Junction, Wisconsin bCenter for Limnology, Hasler Laboratory of Limnology, Madison, Wisconsin Abstract It is virtually impossible to quantify the limnological characteristics of every aquatic ecosystem all the time. The goal of this study

Lottig, Noah R.

455

Heat of Formation of the Hydroperoxyl Radical HOO Via Negative Ion Studies Tanya M. Ramond,, Stephen J. Blanksby,| Shuji Kato,| Veronica M. Bierbaum,*,|  

E-print Network

,,§ Stephen J. Blanksby,| Shuji Kato,| Veronica M. Bierbaum,*,| Gustavo E. Davico, Rebecca L. Schwartz,# W few decades. For reviews, see those by Shum and Benson4 and more recently, by Fisher and Armentrout.5.2 kcal mol-1 is reported in a collision- induced dissociation threshold study by Fisher and Armentrout5

Ellison, Barney

456

Measures of immune function of wild mice, Mus STEPHEN R. ABOLINS,* MICHAEL J. O. POCOCK,* JULIUS C. R. HAFALLA, ELEANOR M.  

E-print Network

Measures of immune function of wild mice, Mus musculus STEPHEN R. ABOLINS,* MICHAEL J. O. POCOCK immune responses) and wild caught Mus musculus. We found that by most measures of immune function. The vast majority of this work has been undertaken on labora- tory rodents (principally mice, Mus musculus

Nachman, Michael

457

J2.3 THE NUMERICAL WEATHER PREDICTION PROFESSIONAL DEVELOPMENT SERIES (NWP PDS) William R. Bua, UCAR/COMET, Camp Springs, MD 20746. and Stephen D. Jascourt  

E-print Network

) William R. Bua, UCAR/COMET, Camp Springs, MD 20746. and Stephen D. Jascourt 1. INTRODUCTION The NWP PDS is developed. On 5 July 2005, this * Corresponding author address: William Bua, UCAR/COMET, NCEP (a warm season concern), the NWP newsgroups, our NWP Distance Learning Course, and COMET Outreach

458

Fatigue of 8630 cast steel in the presence of K. M. Sigl{, R. A. Hardin, R. I. Stephens and C. Beckermann*  

E-print Network

Fatigue of 8630 cast steel in the presence of porosity K. M. Sigl{, R. A. Hardin, R. I. Stephens- to macroscopic levels were cast from 8630 steel. Monotonic and fatigue properties were obtained to determine the effect of porosity on the mechanical performance of the cast steel. Axial fatigue tests were conducted

Beckermann, Christoph

459

Web-site Summary: Skinner, Stephens andWilbanks. 2005. Jeffery Pine Mixed Conifer Fire History and Forest Structure With and Without Fire  

E-print Network

Web-site Summary: Skinner, Stephens andWilbanks. 2005. Jeffery Pine Mixed Conifer Fire History and Forest Structure With and Without Fire Suppression and Harvesting. JFSP Final Report Project 01-3-3-27. SUMMARY OF PROJECT OBJECTIVES: The objectives of this project were to compare climate, fire history

Stephens, Scott L.

460

Quantification of mRNA using real-time RT-PCR Tania Nolan1, Rebecca E Hands2 & Stephen A Bustin2  

E-print Network

Quantification of mRNA using real-time RT-PCR Tania Nolan1, Rebecca E Hands2 & Stephen A Bustin2 1 2006; doi:10.1038/nprot.2006.236 The real-time reverse transcription polymerase chain reaction (RT-qPCRDNA using the PCR and (iii) the detection and quantification of amplification products in real time1

Wangh, Lawrence J.

461

An 8-bit 13-Msamples/s Digital-Background-Calibrated Algorithmic ADC1 Eric B. Blecker, Ozan E. Erdogan2, Paul J. Hurst, and Stephen H. Lewis  

E-print Network

. Erdogan2, Paul J. Hurst, and Stephen H. Lewis Dept. of Electrical and Computer Engineering Solid research was supported by UC MICRO grant 99-070. 2O. Erdogan was with the University of California, Davis by Erdogan et al. [1]. In that ADC, the calibration queue consisted of two sample- and-hold amplifiers (SHAs

Hurst, Paul J.

462

UBC Social Ecological Economic Development Studies (SEEDS) Student Report GAREN MACKIE, HAENA KIM, JULIE PARK, KAMAL BRAICH, MARTINA RIESSNER, STEPHEN HILLIER  

E-print Network

, JULIE PARK, KAMAL BRAICH, MARTINA RIESSNER, STEPHEN HILLIER UBC BOTANICAL GARDEN REDEVELOPMENT FINAL of a project/report". #12;UBC BOTANICAL GARDEN REDEVELOPMENT FINAL DESIGN REPORT CIVIL 446 GROUP 10 April 4;LETTER OF TRANSMITTAL April 4, 2014 UBC Botanical Garden 6804 SW Marine Drive, Vancouver, BC V6T 1Z4 Dear

463

UBC Social Ecological Economic Development Studies (SEEDS) Student Report Garen Mackie, Haena Kim, Julie Park, Kamal Braich, Martina Riessne, Stephen Hillier  

E-print Network

, Julie Park, Kamal Braich, Martina Riessne, Stephen Hillier UBC BOTANICAL GARDEN REDEVELOPMENT CONCEPTUAL of a project/report". #12;UBC BOTANICAL GARDEN REDEVELOPMENT CONCEPTUAL DESIGN REPORT CIVIL 445 GROUP 10 ( #12;LETTER OF TRANSMITTAL November 28, 2013 UBC Botanical Garden 6804 SW Marine Drive, Vancouver, BC V

464

Florida Vegetable Gardening Guide1 Sydney Park Brown, J.M. Stephens, Danielle Treadwell, Susan Webb, Amanda Gevens, R.A.  

E-print Network

, but it is usually worthwhile to improve the garden plot with additions of organic matter (see below). Spade or plowSP 103 Florida Vegetable Gardening Guide1 Sydney Park Brown, J.M. Stephens, Danielle Treadwell Sciences Department, and organic farming specialist; Susan Webb, associate professor, Entomology

Watson, Craig A.

465

Identification and mapping QTL for high-temperature adult-plant resistance to stripe rust in winter wheat (Triticum aestivum L.) cultivar ‘Stephens  

Technology Transfer Automated Retrieval System (TEKTRAN)

High-temperature adult-plant (HTAP) resistance from the winter wheat (Triticum aestivum) cultivar ‘Stephens’ has protected wheat crops from stripe rust caused by Puccinia striiformis f. sp. tritici for 30 years. The objectives of this study were to identify major quantitative trait loci (QTL) for H...

466

UBC Social Ecological Economic Development Studies (SEEDS) Student Report Andrea McCrea, Eric Tam, Fengchao Yin, Jason Hoel, Justin Chan, Luke Debruijn, Stephen Coburn  

E-print Network

, Fengchao Yin, Jason Hoel, Justin Chan, Luke Debruijn, Stephen Coburn UBC Botanical Gardens Conceptual ( Luke Debruijn ( Jason Hoel ( Fengchao Yin ( UBC Botanical Gardens Conceptual Design #12;ii Executive Summary The UBC Botanical Garden is home to a world-class collection of temperate plants and trees

467

Signature-based SER Analysis and Design of Logic Circuits Smita Krishnaswamy , Stephen M. Plaza , Igor L. Markov , and John P. Hayes  

E-print Network

1 Signature-based SER Analysis and Design of Logic Circuits Smita Krishnaswamy , Stephen M. Plaza CAD framework that incorporates tools for the logic-level Analysis of Soft Error Rate (AnSER) and for Signature-based Design for Reliability (SiDeR). We observe that the SER of a logic circuit is closely

Markov, Igor

468

Near-Edge X-ray Absorption Fine Structure Spectroscopy of MDI and TDI Polyurethane Stephen G. Urquhart,*, Archie P. Smith, Harald W. Ade, Adam P. Hitchcock,  

E-print Network

Near-Edge X-ray Absorption Fine Structure Spectroscopy of MDI and TDI Polyurethane Polymers Stephen) to differences in key chemical components of polyurethane polymers is presented. Carbon 1s NEXAFS spectra of polyurethane polymers made from 4,4-methylene di-p-phenylene isocyanate (MDI) and toluene diisocyanate (TDI

469

Climate Change, Ecology and Systematics, ed. Trevor R. Hodkinson, Michael B. Jones, Stephen Waldren and John A. N. Parnell. Published by Cambridge University Press.  

E-print Network

Climate science deals with reconstructing and explaining the long-term mean and variability of physical. Analysis of long-term instrumental records and of palaeo- climatological proxy data shows that the sameClimate Change, Ecology and Systematics, ed. Trevor R. Hodkinson, Michael B. Jones, Stephen Waldren

Caballero, Rodrigo

470

School Law in Review, 2001.  

ERIC Educational Resources Information Center

This book is a compilation of the presentations delivered at the National School Boards Association (NSBA) Council of School Attorneys Annual School Law Seminar on March 22-24, 2001, in San Diego, California. Presentations include: (1) "Religion and the Public Schools--What Hath the Supreme Court Wrought?" (Jay Worona and Patricia H. Gould); (2)…

National School Boards Association, Alexandria, VA. Council of School Attorneys.

471

Reptile reservoirs and seasonal variation in the environmental presence of salmonella in an island ecosystem, Stephens island, New Zealand.  

PubMed

A wide variety of Salmonella serotypes occurs within reptilian hosts, but their ecology is poorly understood. We collected cloacal swabs from tuatara (Sphenodon punctatus), fairy prions (Pachyptila turtur), and skinks (Oligosoma spp.) on Stephens Island, New Zealand, to screen for Salmonella. Soil samples were also collected from inside burrows of tuatara and fairy prions and tested for Salmonella. We sampled repeatedly from October 2009 to October 2011. Cloacal swabs were collected from 620 tuatara, and no intestinal shedding of Salmonella was detected. Similarly, no Salmonella was detected in fairy prions. In contrast, we isolated Salmonella from 6.5% of skinks and 8.4% of soil samples. We identified two serovars of Salmonella from 52 isolates, Salmonella Saintpaul and Salmonella Mississippi. Salmonella Mississippi was isolated from skinks only and S. Saintpaul was found in skinks and soil samples. Salmonella persists in this ecosystem with skinks as the main wildlife reservoir, and an environmental reservoir exists in the soil from burrows used by skinks, tuatara, and fairy prions. Salmonella was absent from skinks and the soil in winter, raising the question of bacteria persisting through winter. PMID:24807185

Middleton, Danielle M R L; La Flamme, Anne C; Gartrell, Brett D; Nelson, Nicola J

2014-07-01

472

STEPHEN ANDREW ZAHORIAN NAME: Stephen A. Zahorian  

E-print Network

;2 HONORS AND AWARDS: Most outstanding professor award (1990). Selected by outstanding student in Electrical (continued) #12;3 Co-organizer of NSF Workshop on Spoken Language Understanding, February, 1992. Panel member to review NSF SBIR proposals in the area of human/machine communication, September, 1991. Reviewer for NSF

Zahorian, Stephen A.

473

Finding Hope in Despair: Charlene and Jay  

ERIC Educational Resources Information Center

This article is excerpted from a chapter in "Finding Hope in Despair: Clinical Studies in Infant Mental Health" (edited by Marian Birch, published 2008 by ZERO TO THREE). Therapeutic intervention with children and families is not always successful, but the professional literature does not often address treatment failures. To address this need,…

Stone, Julie

2009-01-01

474

Consumer Guide JEREMIAH W. (JAY) NIXON  

E-print Network

unresponsive landlords as well as more options for landlords to get rid of drug dealers and destructive tenants. Among the provisions: Authorizes county courts to order the quick removal of tenants involved in drug

Gering, Jon C.

475

Interview with Jay O'Callahan  

NASA Technical Reports Server (NTRS)

Usually stories have elements of risk, trouble, challenge, adventure. These elements are universal because they're part of life. A story gets exciting when someone takes a risk. With risk there's tension and with tension there's energy, and the energy draws us into who the story. NASA's work involves great risk. Sometimes, as with Challenger and Columbia, the result is tragedy. I had a sense the astronauts were invulnerable. They were so well trained, and the engineers behind them were superb. Nothing was going to go wrong. That's one of the reasons the Challenger crew's death moved people so deeply. Christa McAuliffe was not an engineer; she was a teacher and she died, and the whole space enterprise became very human. The Challenger lifted off and in seventy-three seconds the Space Shuttle disintegrated. Seventy-three seconds. That's a day I'll remember, like the day of Kennedy's death. The danger was there, but we were lulled into thinking the space flight was routine. My firm: job would be to talk with MAS people-scientists, engineers, astronauts. I'm sure that underneath the whole NASA enterprise there is a sense of wonder. Perhaps science and myth are coming together in NASA. The myths of old were often stories about the sun, the stars, and the moon. Now with NASA, we're going out there. NASA is turning our eyes heavenward just as the ancients did.

Cohen, Don

2008-01-01

476

Jay Carter Enterprises, Incorporated steam engine  

NASA Technical Reports Server (NTRS)

The Small Community Solar Thermal Power Experiment (SCSE) selected an organic rankine cycle (ORC) engine driving a high speed permanent magnet alternator (PMA) as the baseline power conversion subsystem (PCS) design. The back-up conceptual PCS design is a steam engine driving an induction alternator delivering power directly to the grid. The development of the automotive reciprocating simple rankine cycle steam engine and how an engine of similar design might be incorporated into the SCSE is discussed. A description of the third generation automotive engine is included along with some preliminary test data. Tests were conducted with the third generation engine driving an induction alternator delivering power directly to the grid. The purpose of these tests is to further verify the effects of expander inlet temperature, input thermal power level, expansion ratio, and other parameters affecting engine performance to aid in the development of an SCSE PCS.

1981-01-01

477

Robert Kostick, Eshan Dave, & Jay Dailey  

E-print Network

% 80% 90% 100% 0.375 #4 #8 #16 #50 PercentPassing(%) Sieve Size Basalt Flint Taconite A Taconite B Safe.5% 3.0% Basalt Flint Taconite A Taconite B SafeLane PercentLost(%) Aggregate Type #12;Bridge Site in Virginia Br 69006 PolyCarb System (Taconite) #12;Interstate 35 in Atkinson Br 9832 PolyCarb System (Basalt

Minnesota, University of

478

Editor: Jay Levine Tybrin Corp., ext. 3459  

E-print Network

From program's outset, shuttles inspired, page 9 Challenger's mission, page 11 MDD key to shuttle prep design incorporates iconic images of space shuttle work. Front, clockwise from left, are: a NASA image space shuttle era and the next chapter begins in our nation's extraordinary story of exploration, we

479

"The Role of the Unit in Physics and Psychometrics" by Stephen Humphry--One Small Step for the Rasch Model, but Possibly One Giant Leap for Measurement in the Social Sciences  

ERIC Educational Resources Information Center

Compared to traditional test theory, where person measures are typically referenced to the distribution of a population, item response theory allows for a much more meaningful interpretation of measures as they can be directly compared to item locations. However, Stephen Humphry shows that the crucial role of the unit of measurement has been…

Salzberger, Thomas

2011-01-01

480

Optogenetic analysis of synaptic function Jana F Liewald1,5, Martin Brauner1,5, Greg J Stephens2, Magali Bouhours3, Christian Schultheis1, Mei Zhen3 &  

E-print Network

Optogenetic analysis of synaptic function Jana F Liewald1,5, Martin Brauner1,5, Greg J Stephens2, Magali Bouhours3, Christian Schultheis1, Mei Zhen3 & Alexander Gottschalk1,4 We introduce optogenetic, are not established. To this end, we previously developed optogenetic methods, using the light-gated cation channel

Cai, Long

481

By Stephen M. Jasinski Zinc was produced at 24 mines in the United (except for Japan) and improved in Europe. (USBM) from a voluntary survey on Lode-Mine  

E-print Network

1 ZINC By Stephen M. Jasinski Zinc was produced at 24 mines in the United (except for Japan% from Zinc exports from China, Kazakhstan, North Production of Gold, Silver, Copper, Lead, and 1993. For the fourth consecutive year, Alaska Korea, and Russia remained high, according to Zinc. All of the major zinc

482

Industrial Psychology, Psyc 104, Fall 2007 Stephen J. Guastello, Ph.D. Office: Cramer Hall 328Q. Office hours: M, W 2:30 -3:30 or call  

E-print Network

from "industrial" to I/O psychology. In the theory behind organizational development -- how correspond by email: Stephen.Guastello@marquette.edu OVERVIEW Industrial/Organizational Psychology (also, information-based, and non-profit organizations, as well. The subject matter of I/O is usually placed

Sanders, Matthew

483

Goethe's phenomenology of nature: a juvenilization of science.  

PubMed

Empirical science is not a mere collection of facts. It builds theories and frames hypotheses within those theories. Empirical theories are stated as plausible answers to questions we pose to nature. According to the Galilean-Baconian tradition within science, these questions should basically explore the causes of observed phenomena, and further be restricted to the measurable and quantitative realm. Thus, the answers are generally expected to explain the effective causes behind the actual phenomena. By framing falsifiable hypotheses, the theories are tested against the empirical foundation on which they rest. In this way we try to relieve science from false theories. Thus, we have two epistemological levels: First, the theoretical level; the scientific theory explaining the phenomena, and second, the empirical level; the phenomena or facts verifying or falsifying those theories. According to the poet and multi-scientist Johann Wolfgang von Goethe (1749-1832), there is however another way of science, namely an approach where these two levels fuse and become one. Goethe intended this approach to be a complementation of the Galilean-Baconian method, more than an alternative. He considered his "hypothesis-free method" to be a more comprehensive and secure way to understand nature. Whereas the Galilean-Baconian method aimed at explaining the effective causes of natural phenomena, in order to control and exploit nature for technical and industrial purposes, Goethe aimed at an exposition of the inherent meaning of the phenomena.We will explore, exemplify and discuss this approach with reference to the inherently Goethean phenomenology of evolution credited to the Dutch anatomist Louis Bolk (1866-1930), later commented and complemented by Stephen Jay Gould (1941-2002) and Jos Verhulst (1949 ). In the course of this presentation we will outline the Goethean approach as a method representing a juvenilization or in Bolk's terms, a fetalization of science. PMID:20077388

Skaftnesmo, Trond

2009-01-01

484

Spanish flu and early 20th-century expansion of a coronary heart disease-prone subpopulation.  

PubMed

According to Stephen Jay Gould, "we have a strong preference for seeing trends as entities moving somewhere." However, trends may instead be the product of relative expansions and contractions of different subpopulations constituting the system. Variation in attributes of coronary heart disease cases during the decline in coronary heart disease mortality suggests a change in the primary source-subpopulation of cases over time. It is proposed that an early 20th-century expansion of a coronary heart disease-prone subpopulation, characterized by high serum-cholesterol phenotype and high case-fatality--which contributed to most of the coronary heart disease cases and deaths during the 1960s--may have been a late result of the 1918 influenza pandemic. The same unusual immune response to infection that in 1918 killed preferentially men, whites, and those born from 1880 to 1900 (20-40 years old) may have "primed" survivors of those birth cohorts to late coronary heart disease mortality. Ecologic evidence in favor of a birth cohort and geographic association between both epidemics is presented. Cross-reactive auto-immune response upon reinfection could explain the excess coronary heart disease deaths reported during influenza epidemics from the late 1920s onward. Mimicry between the viral hemagglutinin and the apolipoprotein B or the low-density lipoprotein receptor could be the link between infection and hypercholesterolemia. The extinction of those birth cohorts would result in a relative increase in cases coming from a 2nd subpopulation, which was characterized by insulin resistance and chronic expression of low-grade inflammation markers and was comparatively less vulnerable to die acutely from coronary heart disease. PMID:15061621

Azambuja, Maria Inês Reinert

2004-01-01

485

Nutrition and Cancer Prevention: Targets, Examples, and the Use of Animal Models Stephen D. Hursting, Ph.D., M.P.H., R.D. Deputy Director, Office of Preventive Oncology and Chief, Nutrition and Molecular Carcinogenesis Section National Cancer Institute  

Cancer.gov

Obesity, Energy Balance and Cancer Prevention Stephen D. Hursting, PhD, MPH Division of Cancer Prevention and Nutrition and Molecular Carcinogenesis Section Laboratory of Biosystems and Cancer National Cancer Institute From Greenwald, et. al., Cancer,

486

Interview of Stephen Cleobury  

E-print Network

, the Bishop allowed him to be fast tracked; he was Curate at St Luke's Church, Bromley; after a while my father became the junior partner in general practice; as the senior partner chose not to live in the house, we lived there; it was quite large... general practice and become a psychiatrist; a courageous decision, in retrospect, as he had three children under ten, and we were quite impoverished when we moved to Birmingham; to begin with we lived in accommodation in the mental hospital at Rubery...

Cleobury, Stephen

2008-12-07

487

Stephen Picataggio February 2012  

E-print Network

) Atmospheric Radiation Measurement (ARM) Climate Research Facility RESEARCH and FACILITIES Aeraj Ul Haque) conducts a quality control evaluation of thermal nanofluids, which can help enhance heat transfer. Argonne Mechanical engineer Thomas Wallner (former postdoc) adjusts the laboratory's "omnivorous engine

Goodman, Robert M.

488

Stephen Bolt Adam Davis  

E-print Network

reaction occurs at University of Chicago 1945 - First atomic bomb tested as a part of the Manhattan Project 1946 - Atomic Energy Act of 1946 was passed to control nuclear energy development and look at peaceful uses 1951 ­ Experimental reactor generates electricity to light 4 light bulbs 1954 - The Atomic Energy

Bowen, James D.

489

Hawking, Stephen W (1942-)  

Microsoft Academic Search

Cosmologist and theoretical astrophysicist, born in Oxford, England, where he studied physics at University College. Moved to Cambridge to take up research in general relativity and cosmology, became Lucasian professor (an appointment earlier held by ISAAC NEWTON, with whom Hawking has been compared). Hawking worked to develop a valid mathematical treatment of the `singularities' in the theor...

P. Murdin

2000-01-01

490

Hawking, Stephen W (1942-)  

NASA Astrophysics Data System (ADS)

Cosmologist and theoretical astrophysicist, born in Oxford, England, where he studied physics at University College. Moved to Cambridge to take up research in general relativity and cosmology, became Lucasian professor (an appointment earlier held by ISAAC NEWTON, with whom Hawking has been compared). Hawking worked to develop a valid mathematical treatment of the `singularities' in the theor...

Murdin, P.

2000-11-01

491

UNIFORMIZATION STEPHEN C. PRESTON  

E-print Network

, and then we can compute its length, obtaining a formula for circumference in terms of r. On the Euclidean sin (r/R). For small values of r, the circumference on the sphere looks like C = 2r - 3 r3 /R2 + O(r5 ); we can thus extract the radius of the sphere R from the first correction term in the circumference

Preston, Stephen C.

492

Stephen Hawking's Universe  

NSDL National Science Digital Library

This companion site to a six part Public Broadcasting System series that began October 13, 1997 features a series of essays by Astronomy Magazine associate editor Richard Talcott (the first two of which, Seeing is Believing, and In the Beginning are available at present). These essays discuss the great cosmological questions of the origins of the universe. There are also brief explanations for complex cosmological phenomena (Strange Stuff Explained) from antimatter to Hubble's Law to wormholes; short biographies of seventeen giants of cosmology including Copernicus, Eratosthenes, and Newton; explanations of eleven different universes from flat earth to steady state to big bang; and unsolved mysteries, where leading cosmologists discuss these very large, unanswered questions (three articles are available at present). A Teacher's Guide (Adobe Acrobat [.pdf] format only) and Ask the Experts sections round out this site. A link section is forthcoming.

1997-01-01

493

Trivelpiece-Gould modes in a corrugated plasma slab  

SciTech Connect

It is shown that the spectrum of electrostatic oscillations in a periodically corrugated plasma slab exhibits spatial mode locking, i.e., for each spectral branch there is an infinity of subbands with constant wave numbers. The widths of the largest subbands are evaluated. We also show that the eigenmodes are represented by a set of double layers. Under certain conditions, the initial problem for wave propagation is solved. The interaction of an electron beam with a plasma is studied and the corresponding instability growth rate is obtained.

Ignatov, A.M. (General Physics Institute, 38 Vavilova St., Moscow (Russian Federation))

1995-02-01

494

'STARLESS' SUPER-JEANS CORES IN FOUR GOULD BELT CLOUDS  

SciTech Connect

From a survey of 729 cores based on JCMT/SCUBA data, we present an analysis of 17 candidate starless cores with masses that exceed their stable Jeans masses. We re-examine the classification of these super-Jeans cores using Spitzer maps and find that 3 are re-classified as protostellar, 11 have ambiguous emission near the core positions, and 3 appear to be genuinely starless. We suggest that the 3 starless and 11 undetermined super-Jeans cores represent excellent targets for future observational and computational study to understand the evolution of dense cores and the process of star formation.

Sadavoy, Sarah I.; Di Francesco, James; Johnstone, Doug, E-mail: ssadavoy@uvic.c [Department of Physics and Astronomy, University of Victoria, P.O. Box 355, STN CSC, Victoria, BC, V8W 3P6 (Canada)

2010-07-20

495

Special Coating Emission Control System At Goulds Pumps ITT Industries  

E-print Network

, RefIning, Mining, Food and beverage and Municipal Markets. The facility consists offoundry operations, machine shop, fabrication, testing, and assembly totaling 1,000,000 sq. feet. The Seneca FalIs Operation has approximately 1000 employees... carbon bed filters that absorb the VOCs as a compound in the form of a gas as it is pulled through the filters. Carbon is used as the media in the 'filter because this material has a high affinity for attracting the compmmds within most coatings...

Caropolo, B.; Evans, T.

496

Effect of squeeze on electrostatic Trivelpiece-Gould wave damping  

SciTech Connect

We present a theory for increased damping of Trivelpiece-Gouid plasma modes on a nonneutral plasma column, due to application of a Debye shielded cylindrically symmetric squeeze potential ?{sub 1}. We present two models of the effect this has on the plasma modes: a 1D model with only axial dependence, and a 2D model that also keeps radial dependence in the squeezed equilibrium and the mode. We study the models using both analytical and numerical methods. For our analytical studies, we assume that ?{sub 1}/T?1, and we treat the Debye shielded squeeze potential as a perturbation in the equilibrium Hamiltonian. Our numerical simulations solve the 1D Vlasov-Poisson system and obtain the frequency and damping rate for a self-consistent plasma mode, making no assumptions as to the size of the squeeze. In both the 1D and 2D models, damping of the mode is caused by Landau resonances at energies E{sub n} for which the particle bounce frequency ?{sub b}(E{sub n}) and the wave frequency ? satisfy ?=n?{sub b}(E{sub n}). Particles experience a non-sinusoidal wave potential along their bounce orbits due to the squeeze potential. As a result, the squeeze induces bounce harmonics with n?>?1 in the perturbed distribution. The harmonics allow resonances at energies E{sub n}?T that cause substantial damping, even when wave phase velocities are much larger than the thermal velocity. In the regime ?/k??(T/m) (k is the wave number) and T??{sub 1}, the resonance damping rate has a |?{sub 1}|{sup 2} dependence. This dependence agrees with the simulations and experimental results.

Ashourvan, Arash; Dubin, Daniel H. E. [Department of Physics, University of California at San Diego, La Jolla, California 92093 (United States)

2014-05-15

497

DataData Interpretation,MICs,ARInterpretation,MICs,AR andand I.M. GouldI.M. Gould  

E-print Network

% MRSA Sum of lagged antimicrobial series %MRSA Totalab.Consumption:DDD/1000beddays Relationship between % MRSA and antibiotic use. (3rd GC, FQ, MAC) Emerg. Inf. Dis 2004, 1432 3rd GC lags = 4 ­ 7 months FQ) %ICUpatientsidentifiedwithMRSA%ICUpatientsidentifiedwithMRSA MonthsMonths Aberdeen: ICU MRSA Intervention % ICU patients

Glasgow, University of

498

IN MY OPINION: Is Physics debatable?  

NASA Astrophysics Data System (ADS)

Stephen Jay Gould is, unfortunately, a palaeontologist. I write unfortunately because if he were a physicist we would all have benefited from his innumerable entertaining and informative essays [1]. His steady theme involves an obscure subject like palaeontology and why the subject links so strongly with the human condition. The key, of course, is evolution, and the light it sheds on what it means to be human. The new National Curriculum for England (and probably Wales) requires that pupils be taught: * how scientific controversies can arise from different ways of interpreting empirical evidence and models based on this evidence, and * ways in which scientific ideas may be affected by the context in which they develop, e.g. social, historical, moral and spiritual , and how these contexts may affect whether or not the ideas are accepted. Stephen Jay Gould produces an essay a month (in the US Natural History magazine) and so seems to have few problems in finding topics to write about that would fit well into one or both of the National Curriculum requirements. Good for biologists, but it doesn't seem to be so easy in physics. Admittedly Gould has to have recourse to a great number of historical cases - but he usually manages to link these with up-to-date issues. After all, he comes from a country where several states put `creation science' on a par with the Darwinian model of Earth history, so he has not only scope but need for encouraging some humane rationality. Can the history of physics provide such relevance? Does physics provide nice meaty controversies that might tempt the adolescent to think? We might be able to tell some stories with some level of drama, but it is hard for teachers to produce much enthusiasm in ordinary students at age 14 to 16 for controversies between Newton and Hooke, or Newton and Leibnitz (or Newton and most of his contemporaries, to be honest). They might be made to sympathize with Thomas Young, agonize over Boltzmann, celebrate with Einstein - but we are immediately into realms of physics outside the 14 - 16 curriculum, and perhaps this is just as well. Also, history is problematic. Apart from the possible aversion to dead white males, probably with beards, history is more complicated than we often think. It is easy to give wrong messages: science makes steady linear progress, modern scientists are so much smarter than these old folk who got so much of it wrong. To quote Gould [1, pp 83-4], talking about an 18th century British naturalist, a puzzled contemporary of Linnaeus: Mendes da Costa was an ordinary man in the midst of [a] great transition. ... By studying Mendes da Costa, we can best understand the fixed beliefs, the impact of novelty introduced by innovators, and, particularly, the intellectual impediments that his age posed to better comprehension of the natural world. We must learn to view these impediments with proper sympathy - not in the old style of condescension for an intellectual childhood to compare with our stunning maturity, but as a set of consistent and powerful beliefs, well suited to the culture of another time, held by reasonable people with raw intellects at least as good as ours.' I get from this that history may be best taught by historians - or at least, if by scientists, with a suitable humility. Some hard work will be required by teachers - or by anyone daring enough to provide resources suitable for tackling such problems in a way that not only makes enjoyable sense but encourages an interest and competence in physics by young people. The other main problem for physics teachers, of course, is that any attempt to deal with `different ways of interpreting empirical evidence' in contemporary physics meets a very steep and very high comprehension barrier. We are talking quantum physics, relativistic cosmology, condensed matter etc, etc. One answer might be to avoid pure physics completely and go for the jugular in technological applications. Plenty of scope here: communications, transport, energy, geophysics and climatology, just for starters. The idea will not

Dobson, Ken

2000-01-01

499

Jurisdiction Members Contact Info Key Staffers  

E-print Network

(R-CA) · Charles F. "Charlie" Bass (R-NH) · John "Phil" Gingrey, M.D. (R-GA) · Stephen J. "Steve-PA) · Jane Harman (D-CA) · Janice D. "Jan" Schakowsky (D-IL) · Charles A. "Charlie" Gonzalez (D-TX) · Jay

500

World-Views: Art and Canonical Images in the Geographical and Life Sciences  

Microsoft Academic Search

Alan MacEachern, in his seminal ‘How maps work’, notes how certain representations, which he refers to as ‘master images’,\\u000a have the power to popularize key scientific concepts and theories that are otherwise difficult to comprehend; he quotes the\\u000a image of the double-helix as critical in the science of genetics. From a somewhat different perspective, the evolutionary\\u000a paleontologist, Stephen J. Gould,

Peter Vujakovi?