WorldCat Identities

Quinn, Helen R.

Overview
Works: 16 works in 51 publications in 4 languages and 2,924 library holdings
Genres: Popular works 
Roles: Author, Editor, Thesis advisor
Classifications: QC173.3, 539.7
Publication Timeline
.
Most widely held works by Helen R Quinn
The mystery of the missing antimatter by Helen R Quinn( Book )

15 editions published between 2008 and 2014 in English and Undetermined and held by 901 WorldCat member libraries worldwide

"Helen Quinn and Yossi Nir explain both the history of antimatter and recent advances in particle physics and cosmology. And they discuss the enormous, high-precision experiments that particle physicists are undertaking to test the laws of physics at their most fundamental levels - and how their results reveal tantalizing new possibilities for solving this puzzle at the heart of the cosmos." "The Mystery of the Missing Antimatter is at once a history of ideas and an exploration of modern science and the frontiers of human knowledge. This book reveals how the interplay of theory and experimentation advances our understanding and redefines the questions we ask about our universe."--Jacket
The charm of strange quarks : mysteries and revolutions of particle physics by R. Michael Barnett( Book )

15 editions published between 2000 and 2002 in English and held by 568 WorldCat member libraries worldwide

"This is the story of how twentieth century physicists revealed layer upon layer of structure within the atom to reach the basic particles of matter. Both particle physics and cosmology are made accessible to a reader familiar with some basic principles of physics. The Charm of Strange Quarks relates the drama of the discovery of the charm quark, describes the ephemeral neutrino that can traverse the diameter of Earth, explores indications of dark matter and an accelerating universe, and then culminates with the discovery of the top quark and speculations about the existence of extra space dimensions."--Jacket
NASA's elementary and secondary education program : review and critique by National Research Council (U.S.)( Book )

7 editions published in 2008 in English and held by 107 WorldCat member libraries worldwide

"This report focuses on NASA's K-12 education activities, as mandated by congressional language in the 2005 reauthorizing legislation for the agency"--Introduction (p. 11)
Kuoku no fushigi : Soryushi butsurigaku no shinpi to kakumei( Book )

1 edition published in 2005 in Japanese and held by 4 WorldCat member libraries worldwide

Teachers' resource book on fundamental particles and interactions : to accompany the FPICC wall chart( Book )

1 edition published in 1989 in English and held by 2 WorldCat member libraries worldwide

A framework for K-12 science education : practices, crosscutting concepts, and core ideas by National Research Council (U.S.)( Book )

1 edition published in 2012 in Undetermined and held by 2 WorldCat member libraries worldwide

"A Framework for K-12 Science Education represents the first step in a process to create new standards in K-12 science education."--Foreword
NASA's elementary and secondary education program review and critique by National Research Council (U( )

1 edition published in 2008 in English and held by 2 WorldCat member libraries worldwide

"This report focuses on NASA's K-12 education activities, as mandated by congressional language in the 2005 reauthorizing legislation for the agency"--from Introduction (p. 11)
Asimetria entre materia y antimateria by Helen R Quinn( )

2 editions published in 1998 in Spanish and held by 2 WorldCat member libraries worldwide

Studies in the language of middle school science a linguistic and multimodal analysis of the language used in science and social studies textbooks by Diego Xavier Roman( )

1 edition published in 2014 in English and held by 1 WorldCat member library worldwide

The main aim of this dissertation was to investigate semantic discontinuity --one of the linguistic features that has been described as characteristic of science texts-- in a large corpus of middle school science and social studies textbooks (24 textbooks) and in a smaller hand-annotated corpus (39 chapters) extracted from the larger one. Semantic discontinuity refers to the purported lower frequency of discourse markers in science texts. Besides semantic discontinuity, two of the three studies in this dissertation examined the types of relationships that discourse markers --explicit and implicit-- signaled between discourse segments. Because the complexities of science texts are not limited to language, the third study presented here included a multimodal analysis of the visual representations that appeared in the hand-coded corpus. In regards to semantic discontinuity, it was found that 16.2% of the sentences in science and 14.1% of the sentences in social studies in the large corpus contained discourse markers. The difference between science and social studies was significant (p<.001). In the second study that used the smaller hand-annotated corpus, science sections had an average of 24.5% discourse markers while social studies sections had an average of 23.2% discourse markers --although this difference was not significant. These results showed that science textbooks at the middle school level did not present more semantic discontinuity when compared against their social studies counterparts. In fact, the science materials analyzed had, on average, more explicit markers than social studies in both studies. These findings also indicate that most discourse segments (i.e. clauses and sentences) in textbook materials do not contain discourse markers. Yet, the low percentages of clauses with explicit markers seem to not be limited to the language used in science textbooks. In relation to the discourse relation categories, both studies found that science texts had a higher frequency of discourse segments in an inferential relation than social studies texts. Although the first study found a significantly higher frequency of contrastive/comparison markers in social studies texts (p<.05), this difference was not significant in the hand-annotated corpus. There was a significant grade level and discourse maker interaction (p<.05) in science textbooks in the first study, in which the number of inferential markers increased in the higher grade levels. Similarly, the models run in the first study found a significant increase of contrastive markers in social studies textbooks in higher grade levels (p<.05). These differences were not significant in the second study, although this might be the result of the smaller sample size of the hand-annotated corpus. In regards to the multimodal analysis, science textbooks had a significantly higher proportion of hybrid images --images that combined realistic and abstract representations-- than social studies textbooks (p<.05). In both areas, realistic images (e.g. photographs) were the most frequent of the three categories. In terms of cross-reference links, visual representations used in science sections tended to be referred in the written material, either via descriptive or directive links, in higher percentages than in social studies sections. In social studies sections, on the other hand, visual representations were almost not referred at all in their corresponding texts. The ways captions were used in textbooks also varied in science and in social studies, whereby visual representations in science sections used more explanatory captions while social studies employed more engagement captions that mostly asked questions to students about the visual representations they were accompanying. Finally, science and social studies images were mostly used to elaborate (i.e. presented additional information) on the content presented in the written material. Although the science sections analyzed had a higher percentage of images that provided evidence to the concepts presented in the text than in social studies sections, the highest proportion of rhetorical relations in science and in social studies were elaboration relations. The findings presented in this dissertation point to the need to have adequate descriptions of the multimodal language that is used in science at different grade levels. Only then, the education community would be able develop literacy tasks that are based on the similarities and differences that exist in the language used in different subjects to present conceptual information
Asimetra̕ entre materia y antimateria by Helen R Quinn( Book )

1 edition published in 1998 in Spanish and held by 1 WorldCat member library worldwide

Dos nuevos aceleradores buscaran a partir de 1999 violaciones de una simetra̕ fundamental de la naturaleza y abriran para la fs̕ica una ventana a lo desconocido
The asymmetry between matter and antimatter by Helen R Quinn( Book )

1 edition published in 1998 in English and held by 1 WorldCat member library worldwide

The subject of antimatter and its relationship to matter began with Dirac, with the publication of his famous equation in 1928.[1] Today it remains an active area of particle physics. The dominant issue for a number of major experimental programs is to decipher the nature of the difference in the laws of physics for matter and for antimatter. This has been a central issue of my work in the past few years, and a recurring theme in earlier work. Hence when I was asked to review a subject of my choice for this conference, this was the obvious choice for me; a very different focus from any other talk here. (Also, it allows me along the way make reference to both pieces of work for which I was cited in my Dirac award, though neither is central to this story.) Given this opportunity, I decided to start with the early history of the subject, both in honor of Dirac and his essential role in it, and because it is fascinating to look back and see how understanding evolves
The mystery of the missing antimatter by Helen R Quinn( Visual )

1 edition published in 2008 in English and held by 1 WorldCat member library worldwide

Dr. Helen Quinn of the Stanford Linear Accelerator Center tells how physicists address the puzzle of how it came about that, with very similar laws of physics for matter and antimatter, the Universe is populated with matter but very little antimatter
Ē goēteia tōn paraxenōn kouark : ainigmata kai epanastaseis stē physikē sōmatidiōn by R. Michael Barnett( Book )

1 edition published in 2006 in Greek, Modern and held by 1 WorldCat member library worldwide

Study of the decay of the bottom meson to an omega meson, charged lepton, and neutrino by Howard Wells Wulsin( )

1 edition published in 2011 in English and held by 1 WorldCat member library worldwide

Using a sample of 467 million BB pairs recorded by the BABAR detector at the SLAC PEP-II e+e- collider, we measure the partial branching fraction of B^+ \to \omega\ell\nu decays in five ranges of q2, the momentum-transfer squared of the virtual W boson. We observe 1034 ± 131 signal decays, corresponding to a branching fraction of B(B^+ \to \omega\ell\nu) = (1.17 ± 0.15 ± 0.11) x 10^-4, where the first error is statistical and the second is systematic. The q2 distribution is compared to theoretical predictions based on quark model and light cone sum rule form factor calculations
Measurement of CP-violating asymmetries in B^0 --] (rho pi)^0 using a time-dependent Dalitz plot analysis by Tomonari Scott Miyashita( )

1 edition published in 2013 in English and held by 1 WorldCat member library worldwide

We present results for a time-dependent Dalitz plot measurement of CP-violating asymmetries in the mode B^0 --> pi^+ pi^- pi^0, dominated by B^0 --> rho^\pm pi^\mp (rho^\pm --> pi^\pm pi^0) decays. Our dataset is derived from the complete sample of 471 x 10^6 B-Bbar meson pairs collected by the BABAR detector at the PEP-II asymmetric-energy e^+e^- collider at the SLAC National Accelerator Laboratory, operating on the Upsilon(4S) resonance. We extract parameters describing the time-dependent B^0 --> rho pi decay probabilities and CP asymmetries, including C, DeltaC, S, and DeltaS, finding these measurements to be consistent with the results of previous analyses. Additionally, we present a two-dimensional likelihood scan of the direct CP-violation asymmetry parameters for B^0 --> rho^\pm pi^\mp decays, finding the results to be consistent with direct CP violation at ~ 2 sigma significance. Finally, we present information on the CP-violating parameter alpha, corresponding to an angle in the unitarity triangle associated with the CKM quark-mixing matrix. We perform a likelihood scan of alpha that incorporates constraints from B^\pm --> rho pi measurements by means of isospin relationships. A robustness study assessing the reliability with which alpha is extracted provides important insights into the interpretation of this result
 
moreShow More Titles
fewerShow Fewer Titles
Audience Level
0
Audience Level
1
  Kids General Special  
Audience level: 0.27 (from 0.09 for A framewor ... to 0.98 for Asimetra̕ ...)

The mystery of the missing antimatter
Alternative Names
Helen Quinn Amerikaans natuurkundige

Helen Quinn australiensk fysiker

Helen Quinn australische Physikerin

Helen Quinn australsk fysikar

Helen Quinn australsk fysiker

Helen Quinn Fisica australiana

هلن کوئین فیزیک‌دان استرالیایی

হেলেন কুইন

クイン, H. R.

ヘレン・クイン

海倫·奎恩

Languages
Covers
The charm of strange quarks : mysteries and revolutions of particle physicsNASA's elementary and secondary education program : review and critiqueNASA's elementary and secondary education program review and critique