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1. |
Record Nr. |
UNISOBSON0002016 |
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Autore |
Friso, Gianna |
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Titolo |
Difficoltà di lettura nella scuola media : Percorsi e materiali di recupero per le abilità di decodifica / Gianna Friso ; Adriana Molin ; Silvana Poli ; Introduzione e supervisione di Cesare Cornoldi |
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Pubbl/distr/stampa |
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ISBN |
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Descrizione fisica |
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Collana |
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Materiali di recupero e sostegno |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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2. |
Record Nr. |
UNINA9910461123003321 |
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Autore |
Nosil Patrik |
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Titolo |
Ecological Speciation [[electronic resource]] |
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Pubbl/distr/stampa |
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Oxford, : OUP Oxford, 2012 |
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ISBN |
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1-280-59456-X |
9786613624390 |
0-19-162801-8 |
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Descrizione fisica |
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1 online resource (299 p.) |
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Collana |
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Oxford Series in Ecology and Evolution |
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Disciplina |
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Soggetti |
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Evolution |
Species |
Symbiogenesis |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di contenuto |
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Cover; Contents; Introduction; Abbreviations; Part I: Ecological speciation and its alternatives; 1 What is ecological speciation?; 1.1. The often-continuous nature of the speciation process; 1.2. Ecological speciation via divergent natural selection; 1.3. A brief history of the ecological speciation hypothesis; 1.4. Alternatives to ecological speciation; 1.5. Other roles for ecology in speciation: population persistence and niche conservatism; 1.6. Summary; 2 Predictions and tests of ecological speciation; 2.1. Comparative approaches (ERG); 2.2. Trait-based approaches ("magic traits") |
2.3. Fitness-based approaches (selection = RI)2.4. Gene-flow-based approaches (isolation-by-adaptation); 2.5. Phylogenetic shifts method; 2.6. Inferring causality when testing for ecological speciation; 2.7. Tests and predictions of ecological speciation: conclusions and future directions; Part II: Components of ecological speciation; 3 A source of divergent selection; 3.1. Differences between environments; 3.2. Interactions among populations; 3.3. The functional morphology and biomechanics of divergent selection; 3.4. Environmentally dependent sexual selection |
3.5. Interactions between the different sources of divergent selection3.6. Sources of divergent selection: conclusions; 4 A form of reproductive isolation; 4.1. The different forms of reproductive isolation; 4.2. How common are different forms of reproductive isolation during ecological speciation?; 4.3. For a given point in the speciation process, do multiple reproductive barriers act, and what are their relative contributions to total reproductive isolation?; 4.4. Across the ecological speciation process, at what point do different barriers evolve? |
4.5. Forms of reproductive isolation: conclusions and future directions5 A genetic mechanism to link selection to reproductive isolation; 5.1. Genetics of ecological speciation: the theory of divergence hitchhiking; 5.2. Linking selection to reproductive isolation via pleiotropy; 5.3. Linking selection to reproductive isolation via linkage disequilibrium; 5.4. Genetic constraints on ecological speciation; 5.5. The individual genetic basis of traits under selection and traits conferring reproductive isolation; 5.6. Ecological speciation genes |
5.7. Genetic mechanisms: conclusions and future directionsPart III: Unresolved issues; 6 The geography of ecological speciation; 6.1. Geographic views and definitions of speciation; 6.2. Non-allopatric speciation: geographic contact constrains divergence; 6.3. Non-allopatric speciation: geographic contact promotes divergence; 6.4. The balance between constraining and diversifying effects of gene flow; 6.5. Multiple geographic modes of divergence; 6.6. Two problems with detecting divergence in the face of gene flow |
6.7. Detecting divergence in the face of gene flow: comparative geographic approaches |
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Sommario/riassunto |
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The origin of biological diversity, via the formation of new species, can be inextricably linked to adaptation to the ecological environment. Specifically, ecological processes are central to the formation of new species when barriers to gene flow (reproductive isolation) evolve between populations as a result of ecologically-based divergent natural selection. This process of 'ecological speciation' has seen a large body of particularly focused research in the last 10-15 years, anda review and synthesis of the theoretical and empirical literature is now timely.The book begins by clarifying wha |
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3. |
Record Nr. |
UNINA9910452717003321 |
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Autore |
Baggott J. E |
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Titolo |
Higgs [[electronic resource] ] : the invention and discovery of the 'God particle' / / Jim Baggott |
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Pubbl/distr/stampa |
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Oxford ; ; New York, : Oxford University Press, 2012 |
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ISBN |
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1-282-16671-9 |
9786613809780 |
0-19-165002-1 |
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Descrizione fisica |
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1 online resource (300 p.) |
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Disciplina |
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Soggetti |
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Higgs bosons |
Particles (Nuclear physics) |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Cover; Contents; About the Author; Preface; Foreword; Prologue: Form and Substance; Part I: Invention; 1 The Poetry of Logical Ideas: In which German mathematician Emmy Noether discovers the relationship between conservation laws and the deep symmetries of nature; 2 Not a Sufficient Excuse: In which Chen Ning Yang and Robert Mills try to develop a quantum field theory of the strong nuclear force and annoy Wolfgang Pauli |
3 People Will Be Very Stupid About It: In which Murray Gell-Mann discovers strangeness and the 'Eightfold Way', Sheldon Glashow applies Yang-Mills field theory to the weak nuclear force, and people are very stupid about it4 Applying the Right Ideas to the Wrong Problem: In which Murray Gell-Mann and George Zweig invent quarks and Steven Weinberg and Abdus Salam use the Higgs mechanism to give mass to the W and Z particles (finally!) |
5 I Can Do That: In which Gerard 't Hooft proves that Yang-Mills field theories can be renormalized and Murray Gell-Mann and Harald Fritzsch develop a theory of the strong force based on quark colourPart II: Discovery; 6 Alternating Neutral Currents: In which protons and |
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neutrons are shown to have an internal structure and the predicted neutral currents of the weak nuclear force are found, and then lost, and then found again |
7 They Must Be Ws: In which quantum chromodynamics is formulated, the charm-quark is discovered, and the W and Z particles are found, precisely where they were predicted to be8 Throw Deep: In which Ronald Reagan throws his weight behind the Superconducting Supercollider, but when the project is cancelled by Congress six years later all that remains is a hole in Texas; 9 A Fantastic Moment: In which the Higgs boson is explained in terms that a British politician can understand, hints of the Higgs are found at CERN, the Large Hadron Collider is switched on, and then blows up |
10 The Shakespeare Question: In which the LHC performs better than anyone expected (except Lyn Evans), a year's data is gathered in a few months and the Higgs boson runs out of places to hideEpilogue: The Construction of Mass; Endnotes; Glossary; A; B; C; D; E; F; G; H; I; K; L; M; N; P; Q; R; S; T; U; V; W; Y; Bibliography; Index; A; B; C; D; E; F; G; H; I; J; K; L; M; N; O; P; Q; R; S; T; U; V; W; X; Y; Z |
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Sommario/riassunto |
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The hunt for the Higgs particle has involved the biggest, most expensive experiment ever. So exactly what is this particle? Why does it matter so much? What does it tell us about the Universe? Has the discovery announced on 4 July 2012 finished the search? And was finding it really worth all the effort?The short answer is yes. The Higgs field is proposed as the way in which particles gain mass - a fundamental property of matter. It's the strongest indicator yet that the Standard Model of physics really does reflect the basic building blocks of our Universe. Little wonder the hunt and discovery |
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