Author: Barry Schein
Publisher: MIT Press
ISBN: 0262338068
Category : Language Arts & Disciplines
Languages : en
Pages : 1035
Book Description
A bold argument that “and” always means “&,” the truth-functional sentential connective. In this book, Barry Schein argues that “and” is always the sentential logical connective with the same, one, meaning. “And” always means “&,” across the varied constructions in which it is tokened in natural language. Schein examines the constructions that challenge his thesis, and shows that the objections disappear when these constructions are translated into Eventish, a neo-Davidsonian event semantics, and, enlarged with Cinerama Semantics, a vocabulary for spatial orientation and navigation. Besides rescuing “and” from ambiguity, Eventish and Cinerama Semantics solve general puzzles of grammar and meaning unrelated to conjunction, revealing the book's central thesis in the process: aspects of meaning mistakenly attributed to “and” are discovered to reflect neighboring structures previously unseen and unacknowledged. Schein argues that Eventish and Cinerama Semantics offer a fundamental revision to clause structure and what aspects of meaning are represented therein. Eventish is distinguished by four features: supermonadicity, which enlarges verbal decomposition so that every argument relates to its own event; descriptive event anaphora, which replaces simple event variables with silent descriptive pronouns; adverbialization, which interposes adverbials derived from the descriptive content of every DP; and AdrPs, which replace all NPs with Address Phrases that locate what nominals denote within scenes or frames of reference. With 'And,' Schein rehabilitates an old rule of transformational, generative grammar, answering the challenges to it exhaustively and meticulously.
Harvard A to Z
Author: John T. Bethell
Publisher: Harvard University Press
ISBN: 0674020898
Category : Education
Languages : en
Pages : 409
Book Description
Open this book and step into the storied corridors of the nation's oldest university; encounter the historic landmarks and curiosities; and among them, meet the famous dropouts and former students, the world-class scholars, eccentrics, and prodigies who have given the institution its incomparable character. An alphabetical compendium of short but substantial essays about Harvard University--its undergraduate college and nine professional schools--this volume traverses the gamut of Harvardiana from Aab and Admissions to X Cage and Z Closet. In between are some two hundred entries written by three Harvard veterans who bring to the task over 125 years of experience within the university. The entries range from essential facts to no less interesting ephemera, from the Arnold Arboretum designed by Frederick Law Olmsted to the peculiar medical specimens of the Warren Museum; from Arts and Athletics to Towers and Tuition: from the very real environs (Cambridge, Charles River, and Quincy Street) to the Harvard of Hollywood and fiction. Harvard A to Z is a browser's delight, offering readers the chance to dip into the history and lore, the character and culture of America's foremost institution of higher learning. Table of Contents: Preface Map of Harvard Aab Admissions Adolphus Busch Hall Affirmative Action Alpha-Iota of Massachusetts Allston Alumni American Repertory Theatre Architecture Archives Arms Arnold Arboretum Art Museums Arts Athletics Bells Brattle Theatre Business School Cambridge/Boston Cantab Carpenter Center Characters Charles River Clocks College Pump Commencement Consulting Continuing Education The Core Crimson Crimson Key Dance Deans Degrees Dental School Dining Services Diplomas Discipline Divinity School Diversity Dropouts Dumbarton Oaks Ed School Elmwood Endowment ETOB Extinct Harvard Faculty Club "Fair Harvard" Fashion Fictional Harvard Film Archive Final Clubs Fire First Year Firsts (Men) Firsts (Women) Fountains Fundraising Gates Gay and Lesbian Gazette Gilbert & Sullivan Glass Flowers God's Acre 00 "Godless Harvard" Gold Coast Governance Grade Inflation GSAS GSD Great Salt and Other Relics Guardhouse Harvard Advocate Harvard College Harvard Crimson Harvard Elsewhere Harvard Forest Harvard Foundation Harvard Hall Harvard Heroes Harvard Hill Harvard Magazine Harvard Neighbors Harvard Student Agencies Harvard Union Harvard University Press Hasty Pudding Show Hillel Holden Chapel Hollywood's Harvard Honorary Degrees Houghton Library Houses Information Technology International Outreach Ivy League Jazz John Harvard--and His Statue Kennedy School of Government Lamont Library Lampoon Law School Lectures Libraries Life Raft Maps Medical School Memorial Church Memorial Hall Music Native American Program Nieman Fellows Nobel Laureates Observatory Ombuds Outings and Innings Phillips Brooks House Portrait Collection Presidents Prodigies School of Public Health Public Service Quincy Street Radcliffe Rebellions and Riots Regalia Research Centers and Institutes Reunions Rhodes Scholars ROTC Sanders Theatre Sardis Science Museums Scientific Instruments Signet Society Society of Fellows Soldiers Field Songs and Marches Statues and Monuments Theatre Collection Towers Trademark Licensing and Protection Tuition Underground UHS University Professors Vanserg Hall Villa I Tatti Virtual Harvard Wadsworth House Warren Museum WHRB Widener Library Wireless Club X Cage The Yard Z Closet Zeph Greek Appendix: Harvard Lingo Acknowledgments Index
Publisher: Harvard University Press
ISBN: 0674020898
Category : Education
Languages : en
Pages : 409
Book Description
Open this book and step into the storied corridors of the nation's oldest university; encounter the historic landmarks and curiosities; and among them, meet the famous dropouts and former students, the world-class scholars, eccentrics, and prodigies who have given the institution its incomparable character. An alphabetical compendium of short but substantial essays about Harvard University--its undergraduate college and nine professional schools--this volume traverses the gamut of Harvardiana from Aab and Admissions to X Cage and Z Closet. In between are some two hundred entries written by three Harvard veterans who bring to the task over 125 years of experience within the university. The entries range from essential facts to no less interesting ephemera, from the Arnold Arboretum designed by Frederick Law Olmsted to the peculiar medical specimens of the Warren Museum; from Arts and Athletics to Towers and Tuition: from the very real environs (Cambridge, Charles River, and Quincy Street) to the Harvard of Hollywood and fiction. Harvard A to Z is a browser's delight, offering readers the chance to dip into the history and lore, the character and culture of America's foremost institution of higher learning. Table of Contents: Preface Map of Harvard Aab Admissions Adolphus Busch Hall Affirmative Action Alpha-Iota of Massachusetts Allston Alumni American Repertory Theatre Architecture Archives Arms Arnold Arboretum Art Museums Arts Athletics Bells Brattle Theatre Business School Cambridge/Boston Cantab Carpenter Center Characters Charles River Clocks College Pump Commencement Consulting Continuing Education The Core Crimson Crimson Key Dance Deans Degrees Dental School Dining Services Diplomas Discipline Divinity School Diversity Dropouts Dumbarton Oaks Ed School Elmwood Endowment ETOB Extinct Harvard Faculty Club "Fair Harvard" Fashion Fictional Harvard Film Archive Final Clubs Fire First Year Firsts (Men) Firsts (Women) Fountains Fundraising Gates Gay and Lesbian Gazette Gilbert & Sullivan Glass Flowers God's Acre 00 "Godless Harvard" Gold Coast Governance Grade Inflation GSAS GSD Great Salt and Other Relics Guardhouse Harvard Advocate Harvard College Harvard Crimson Harvard Elsewhere Harvard Forest Harvard Foundation Harvard Hall Harvard Heroes Harvard Hill Harvard Magazine Harvard Neighbors Harvard Student Agencies Harvard Union Harvard University Press Hasty Pudding Show Hillel Holden Chapel Hollywood's Harvard Honorary Degrees Houghton Library Houses Information Technology International Outreach Ivy League Jazz John Harvard--and His Statue Kennedy School of Government Lamont Library Lampoon Law School Lectures Libraries Life Raft Maps Medical School Memorial Church Memorial Hall Music Native American Program Nieman Fellows Nobel Laureates Observatory Ombuds Outings and Innings Phillips Brooks House Portrait Collection Presidents Prodigies School of Public Health Public Service Quincy Street Radcliffe Rebellions and Riots Regalia Research Centers and Institutes Reunions Rhodes Scholars ROTC Sanders Theatre Sardis Science Museums Scientific Instruments Signet Society Society of Fellows Soldiers Field Songs and Marches Statues and Monuments Theatre Collection Towers Trademark Licensing and Protection Tuition Underground UHS University Professors Vanserg Hall Villa I Tatti Virtual Harvard Wadsworth House Warren Museum WHRB Widener Library Wireless Club X Cage The Yard Z Closet Zeph Greek Appendix: Harvard Lingo Acknowledgments Index
The Harvard Book Selections From Three Centuries
Author: William Bentinck Smith
Publisher: Legare Street Press
ISBN: 9781015407794
Category : Education
Languages : en
Pages : 0
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Publisher: Legare Street Press
ISBN: 9781015407794
Category : Education
Languages : en
Pages : 0
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Harvard University Press
Author: Max Hall
Publisher: Harvard University Press
ISBN: 9780674380806
Category : Business & Economics
Languages : en
Pages : 282
Book Description
A university press is a curious institution, dedicated to the dissemination of learning yet apart from the academic structure; a publishing firm that is in business, but not to make money; an arm of the university that is frequently misunderstood and occasionally attacked by faculty and administration. Max Hall here chronicles the early stages and first sixty years of Harvard University Press in a rich and entertaining book that is at once Harvard history, publishing history, printing history, business history, and intellectual history. The tale begins in 1638 when the first printing press arrived in British North America. It became the property of Harvard College and remained so for nearly half a century. Hall sketches the various forerunners of the "real" Harvard University Press, founded in 1913, and then follows the ups and downs of its first six decades, during which the Press published steadily if not always serenely a total of 4,500 books. He describes the directors and others who left their stamp on the Press or guided its fortunes during these years. And he gives the stories behind such enduring works as Lovejoy's Great Chain of Being, Giedion's Space, Time, and Architecture, Langer's Philosophy in a New Key, and Kelly's Eleanor of Aquitaine and the Four Kings.
Publisher: Harvard University Press
ISBN: 9780674380806
Category : Business & Economics
Languages : en
Pages : 282
Book Description
A university press is a curious institution, dedicated to the dissemination of learning yet apart from the academic structure; a publishing firm that is in business, but not to make money; an arm of the university that is frequently misunderstood and occasionally attacked by faculty and administration. Max Hall here chronicles the early stages and first sixty years of Harvard University Press in a rich and entertaining book that is at once Harvard history, publishing history, printing history, business history, and intellectual history. The tale begins in 1638 when the first printing press arrived in British North America. It became the property of Harvard College and remained so for nearly half a century. Hall sketches the various forerunners of the "real" Harvard University Press, founded in 1913, and then follows the ups and downs of its first six decades, during which the Press published steadily if not always serenely a total of 4,500 books. He describes the directors and others who left their stamp on the Press or guided its fortunes during these years. And he gives the stories behind such enduring works as Lovejoy's Great Chain of Being, Giedion's Space, Time, and Architecture, Langer's Philosophy in a New Key, and Kelly's Eleanor of Aquitaine and the Four Kings.
Environment in the Balance
Author: Jonathan Z. Cannon
Publisher: Harvard University Press
ISBN: 0674425987
Category : Law
Languages : en
Pages : 385
Book Description
The first Earth Day in 1970 marked environmentalism’s coming-of-age in the United States. More than four decades later, does the green movement remain a transformative force in American life? Presenting a new account from a legal perspective, Environment in the Balance interprets a wide range of U.S. Supreme Court decisions, along with social science research and the literature of the movement, to gauge the practical and cultural impact of environmentalism and its future prospects. Jonathan Z. Cannon demonstrates that from the 1960s onward, the Court’s rulings on such legal issues as federalism, landowners’ rights, standing, and the scope of regulatory authority have reflected deep-seated cultural differences brought out by the mass movement to protect the environment. In the early years, environmentalists won some important victories, such as the Supreme Court’s 1973 decision allowing them to sue against barriers to recycling. But over time the Court has become more skeptical of their claims and more solicitous of values embodied in private property rights, technological mastery and economic growth, and limited government. Today, facing the looming threat of global warming, environmentalists struggle to break through a cultural stalemate that threatens their goals. Cannon describes the current ferment in the movement, and chronicles efforts to broaden its cultural appeal while staying connected to its historical roots, and to ideas of nature that have been the source of its distinctive energy and purpose.
Publisher: Harvard University Press
ISBN: 0674425987
Category : Law
Languages : en
Pages : 385
Book Description
The first Earth Day in 1970 marked environmentalism’s coming-of-age in the United States. More than four decades later, does the green movement remain a transformative force in American life? Presenting a new account from a legal perspective, Environment in the Balance interprets a wide range of U.S. Supreme Court decisions, along with social science research and the literature of the movement, to gauge the practical and cultural impact of environmentalism and its future prospects. Jonathan Z. Cannon demonstrates that from the 1960s onward, the Court’s rulings on such legal issues as federalism, landowners’ rights, standing, and the scope of regulatory authority have reflected deep-seated cultural differences brought out by the mass movement to protect the environment. In the early years, environmentalists won some important victories, such as the Supreme Court’s 1973 decision allowing them to sue against barriers to recycling. But over time the Court has become more skeptical of their claims and more solicitous of values embodied in private property rights, technological mastery and economic growth, and limited government. Today, facing the looming threat of global warming, environmentalists struggle to break through a cultural stalemate that threatens their goals. Cannon describes the current ferment in the movement, and chronicles efforts to broaden its cultural appeal while staying connected to its historical roots, and to ideas of nature that have been the source of its distinctive energy and purpose.
The Founding of Harvard College
Author: Samuel Eliot Morison
Publisher: Harvard University Press
ISBN: 9780674314511
Category : Education
Languages : en
Pages : 596
Book Description
Pulitzer Prize-winning author Samuel Eliot Morison traces the roots of American universities back to Europe, providing "a lively contemporary perspective...a realistic picture of the founding of the first American university north of the Rio Grande" [Lewis Gannett, New York Herald Tribune].
Publisher: Harvard University Press
ISBN: 9780674314511
Category : Education
Languages : en
Pages : 596
Book Description
Pulitzer Prize-winning author Samuel Eliot Morison traces the roots of American universities back to Europe, providing "a lively contemporary perspective...a realistic picture of the founding of the first American university north of the Rio Grande" [Lewis Gannett, New York Herald Tribune].
Time and Chance
Author: David Z Albert
Publisher: Harvard University Press
ISBN: 0674020138
Category : Science
Languages : en
Pages : 188
Book Description
This book is an attempt to get to the bottom of an acute and perennial tension between our best scientific pictures of the fundamental physical structure of the world and our everyday empirical experience of it. The trouble is about the direction of time. The situation (very briefly) is that it is a consequence of almost every one of those fundamental scientific pictures--and that it is at the same time radically at odds with our common sense--that whatever can happen can just as naturally happen backwards. Albert provides an unprecedentedly clear, lively, and systematic new account--in the context of a Newtonian-Mechanical picture of the world--of the ultimate origins of the statistical regularities we see around us, of the temporal irreversibility of the Second Law of Thermodynamics, of the asymmetries in our epistemic access to the past and the future, and of our conviction that by acting now we can affect the future but not the past. Then, in the final section of the book, he generalizes the Newtonian picture to the quantum-mechanical case and (most interestingly) suggests a very deep potential connection between the problem of the direction of time and the quantum-mechanical measurement problem. The book aims to be both an original contribution to the present scientific and philosophical understanding of these matters at the most advanced level, and something in the nature of an elementary textbook on the subject accessible to interested high-school students.
Publisher: Harvard University Press
ISBN: 0674020138
Category : Science
Languages : en
Pages : 188
Book Description
This book is an attempt to get to the bottom of an acute and perennial tension between our best scientific pictures of the fundamental physical structure of the world and our everyday empirical experience of it. The trouble is about the direction of time. The situation (very briefly) is that it is a consequence of almost every one of those fundamental scientific pictures--and that it is at the same time radically at odds with our common sense--that whatever can happen can just as naturally happen backwards. Albert provides an unprecedentedly clear, lively, and systematic new account--in the context of a Newtonian-Mechanical picture of the world--of the ultimate origins of the statistical regularities we see around us, of the temporal irreversibility of the Second Law of Thermodynamics, of the asymmetries in our epistemic access to the past and the future, and of our conviction that by acting now we can affect the future but not the past. Then, in the final section of the book, he generalizes the Newtonian picture to the quantum-mechanical case and (most interestingly) suggests a very deep potential connection between the problem of the direction of time and the quantum-mechanical measurement problem. The book aims to be both an original contribution to the present scientific and philosophical understanding of these matters at the most advanced level, and something in the nature of an elementary textbook on the subject accessible to interested high-school students.
Developing Feedback for Pupil Learning
Author: Ruth Dann
Publisher: Routledge
ISBN: 131718971X
Category : Education
Languages : en
Pages : 294
Book Description
Feedback is often considered to be one of the pivotal enablers of formative assessment. This key topic has received considerable attention within research literature and has been studied by a number of leading experts in the field. This book is positioned at the heart of these debates and offers a specific contribution to ‘exploring’ and ‘exploiting’ the learning gap which feedback seeks to shift. Developing Feedback for Pupil Learning seeks to synthesise what we know about feedback and learning into more in-depth understandings of what influences both the structure of and changes to the learning gap. This research-informed but accessibly written enquiry is at the very heart of teaching, learning and assessment. It offers a timely contribution to understanding what works (and what doesn’t) for whom and why. Split into three main parts, it covers: Feedback for learning in theory, policy and practice; Conceptualising the ‘learning gap’; New futures for feedback. This text will be essential reading for students, teachers, researchers and all those who engage with issues related to teaching, learning and assessment academically.
Publisher: Routledge
ISBN: 131718971X
Category : Education
Languages : en
Pages : 294
Book Description
Feedback is often considered to be one of the pivotal enablers of formative assessment. This key topic has received considerable attention within research literature and has been studied by a number of leading experts in the field. This book is positioned at the heart of these debates and offers a specific contribution to ‘exploring’ and ‘exploiting’ the learning gap which feedback seeks to shift. Developing Feedback for Pupil Learning seeks to synthesise what we know about feedback and learning into more in-depth understandings of what influences both the structure of and changes to the learning gap. This research-informed but accessibly written enquiry is at the very heart of teaching, learning and assessment. It offers a timely contribution to understanding what works (and what doesn’t) for whom and why. Split into three main parts, it covers: Feedback for learning in theory, policy and practice; Conceptualising the ‘learning gap’; New futures for feedback. This text will be essential reading for students, teachers, researchers and all those who engage with issues related to teaching, learning and assessment academically.
The Harvard List of Books in Psychology
Author: Harvard University
Publisher:
ISBN:
Category : Psychology
Languages : en
Pages : 24
Book Description
Publisher:
ISBN:
Category : Psychology
Languages : en
Pages : 24
Book Description
'And'
Author: Barry Schein
Publisher: MIT Press
ISBN: 0262338068
Category : Language Arts & Disciplines
Languages : en
Pages : 1035
Book Description
A bold argument that “and” always means “&,” the truth-functional sentential connective. In this book, Barry Schein argues that “and” is always the sentential logical connective with the same, one, meaning. “And” always means “&,” across the varied constructions in which it is tokened in natural language. Schein examines the constructions that challenge his thesis, and shows that the objections disappear when these constructions are translated into Eventish, a neo-Davidsonian event semantics, and, enlarged with Cinerama Semantics, a vocabulary for spatial orientation and navigation. Besides rescuing “and” from ambiguity, Eventish and Cinerama Semantics solve general puzzles of grammar and meaning unrelated to conjunction, revealing the book's central thesis in the process: aspects of meaning mistakenly attributed to “and” are discovered to reflect neighboring structures previously unseen and unacknowledged. Schein argues that Eventish and Cinerama Semantics offer a fundamental revision to clause structure and what aspects of meaning are represented therein. Eventish is distinguished by four features: supermonadicity, which enlarges verbal decomposition so that every argument relates to its own event; descriptive event anaphora, which replaces simple event variables with silent descriptive pronouns; adverbialization, which interposes adverbials derived from the descriptive content of every DP; and AdrPs, which replace all NPs with Address Phrases that locate what nominals denote within scenes or frames of reference. With 'And,' Schein rehabilitates an old rule of transformational, generative grammar, answering the challenges to it exhaustively and meticulously.
Publisher: MIT Press
ISBN: 0262338068
Category : Language Arts & Disciplines
Languages : en
Pages : 1035
Book Description
A bold argument that “and” always means “&,” the truth-functional sentential connective. In this book, Barry Schein argues that “and” is always the sentential logical connective with the same, one, meaning. “And” always means “&,” across the varied constructions in which it is tokened in natural language. Schein examines the constructions that challenge his thesis, and shows that the objections disappear when these constructions are translated into Eventish, a neo-Davidsonian event semantics, and, enlarged with Cinerama Semantics, a vocabulary for spatial orientation and navigation. Besides rescuing “and” from ambiguity, Eventish and Cinerama Semantics solve general puzzles of grammar and meaning unrelated to conjunction, revealing the book's central thesis in the process: aspects of meaning mistakenly attributed to “and” are discovered to reflect neighboring structures previously unseen and unacknowledged. Schein argues that Eventish and Cinerama Semantics offer a fundamental revision to clause structure and what aspects of meaning are represented therein. Eventish is distinguished by four features: supermonadicity, which enlarges verbal decomposition so that every argument relates to its own event; descriptive event anaphora, which replaces simple event variables with silent descriptive pronouns; adverbialization, which interposes adverbials derived from the descriptive content of every DP; and AdrPs, which replace all NPs with Address Phrases that locate what nominals denote within scenes or frames of reference. With 'And,' Schein rehabilitates an old rule of transformational, generative grammar, answering the challenges to it exhaustively and meticulously.
Language of the Stars
Author: Zdenek Kopal
Publisher: Springer Science & Business Media
ISBN: 9400994664
Category : Science
Languages : en
Pages : 290
Book Description
Eclipsing Variables - What They can Tell Us and What We can do with Them The aim of the present book will be to provide an introduction to the inter pretation of the observed light changes of eclipsing binary stars and their analysis for the elements of the respective systems. Whenever we study the properties of any celestial body - be it a planet or a star - all information we wish to gain can reach us through two different channels: their gravitational attraction, and their light. Gravitational interaction between our Earth and its celestial neighbours is, however, measurable only at distances of the order of the dimensions of our solar system; and the only means of communication with the realm of the stars are their nimble-footed photons reaching us - with appropriate time-lag - across the intervening gaps of space. As long as a star is single and emits constant light, it does not constitute a very revealing source of information. A spectrometry of its light can disclose, to be sure, the temperature (colour, or ionization) of the star's semi-transparent outer layers, their chemical composition, and prevalent pressure (through Stark effect) or magnetic field (Zeeman effect), it can disclose even some information about its absolute luminosity or rate of spin. It cannot, however, tell us anything about what we should like to know most - namely, the mass or size (i.e., density) of the respective configuration; its absolute dimensions, or its internal structure.
Publisher: Springer Science & Business Media
ISBN: 9400994664
Category : Science
Languages : en
Pages : 290
Book Description
Eclipsing Variables - What They can Tell Us and What We can do with Them The aim of the present book will be to provide an introduction to the inter pretation of the observed light changes of eclipsing binary stars and their analysis for the elements of the respective systems. Whenever we study the properties of any celestial body - be it a planet or a star - all information we wish to gain can reach us through two different channels: their gravitational attraction, and their light. Gravitational interaction between our Earth and its celestial neighbours is, however, measurable only at distances of the order of the dimensions of our solar system; and the only means of communication with the realm of the stars are their nimble-footed photons reaching us - with appropriate time-lag - across the intervening gaps of space. As long as a star is single and emits constant light, it does not constitute a very revealing source of information. A spectrometry of its light can disclose, to be sure, the temperature (colour, or ionization) of the star's semi-transparent outer layers, their chemical composition, and prevalent pressure (through Stark effect) or magnetic field (Zeeman effect), it can disclose even some information about its absolute luminosity or rate of spin. It cannot, however, tell us anything about what we should like to know most - namely, the mass or size (i.e., density) of the respective configuration; its absolute dimensions, or its internal structure.