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1. |
Record Nr. |
UNINA9910457805403321 |
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Autore |
Davis Rebecca L (Rebecca Louise), <1975-> |
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Titolo |
More perfect unions [[electronic resource] ] : the American search for marital bliss / / Rebecca L. Davis |
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Pubbl/distr/stampa |
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Cambridge, Mass., : Harvard University Press, 2010 |
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ISBN |
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Descrizione fisica |
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1 online resource (329 p.) |
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Disciplina |
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Soggetti |
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Marriage counseling - United States |
Marriage - United States |
Divorce - United States |
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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Bibliographic Level Mode of Issuance: Monograph |
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Nota di bibliografia |
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Includes bibliographical references (p. 265-302) and index. |
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Nota di contenuto |
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Prologue: the pursuit of marital happiness -- Shaken foundations -- Searching for economic and sexual security -- Counseling prosperity -- Quantifying compatibility -- Sacred partnerships -- Marriage under fire -- The state of marriage -- Epilogue: twenty-first-century battlegrounds. |
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Sommario/riassunto |
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The American fixation with marriage, so prevalent in today's debates over marriage for same-sex couples, owes much of its intensity to a small group of reformers who introduced Americans to marriage counseling in the 1930's. Today, millions of couples seek help to save their marriages each year. Over the intervening decades, marriage counseling has powerfully promoted the idea that successful marriages are essential to both individuals' and the nation's well-being. Rebecca Davis reveals how couples and counselors transformed the ideal of the perfect marriage as they debated sexuality, childcare, mobility, wage earning, and autonomy, exposing both the fissures and aspirations of American society. From the economic dislocations of the Great Depression to more recent debates over government-funded "Healthy Marriage" programs, counselors have responded to the shifting needs and goals of American couples. Tensions among personal fulfillment, career aims, religious identity, and socioeconomic status have coursed |
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through the history of marriage and explain why the stakes in the institution are so fraught for the couples involved and for the communities to which they belong. Americans care deeply about marriages-their own and other people's-because they have made enormous investments of time, money, and emotion to improve their own relationships and because they believe that their personal decisions about whom to marry or whether to divorce extend far beyond themselves. This intriguing book tells the uniquely American story of a culture gripped with the hope that, with enough effort and the right guidance, more perfect marital unions are within our reach. |
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2. |
Record Nr. |
UNINA9910143426303321 |
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Autore |
Kolb Bruno |
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Titolo |
Static headspace-gas chromatography [[electronic resource] ] : theory and practice / / Bruno Kolb and Leslie S. Ettre |
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Pubbl/distr/stampa |
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Hoboken, N.J., : Wiley, c2006 |
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ISBN |
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1-280-44819-9 |
9786610448197 |
0-470-32598-4 |
0-471-91458-4 |
0-471-91456-8 |
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Edizione |
[2nd ed.] |
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Descrizione fisica |
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1 online resource (377 p.) |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Gas chromatography |
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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Static Headspace-Gas Chromatography; Contents; Preface; Preface to the First Edition; List of Acronyms and Symbols; 1 General Introduction; 1.1 Principles of Headspace Analysis; 1.2 Types of Headspace Analysis; 1.2.1 Principles of Static HS-GC; 1.2.2 Principles of Dynamic HS-GC; 1.2.2.1 The Trap; 1.2.2.2 The Water Problem; 1.2.2.3 The Flow |
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Problem; 1.2.2.4 The Time Problem; 1.2.2.5 Comparison of Static HS-GC with P&T; 1.3 The Evolution of the HS-GC Methods; 1.4 HS-GS Literature; 1.5 Regulatory Methods Utilizing (Static) HS-GC; References; 2 Theoretical Background of HS-GC and Its Applications |
2.1 Basic Theory of Headspace Analysis2.2 Basic Physicochemical Relationships; 2.3 Headspace Sensitivity; 2.3.1 Influence of Temperature on Vapor Pressure and Partition Coefficient; 2.3.1.1 Enhancement of Lower Boiling Compounds; 2.3.2 Influence of Temperature on Headspace Sensitivity for Compounds with Differing Partition Coefficients; 2.3.3 Influence of Sample Volume on Headspace Sensitivity for Compounds with Differing Partition Coefficients; 2.3.3.1 Sample-to-Sample Reproducibility; 2.3.4 Changing the Sample Matrix by Varying the Activity Coefficient; 2.4 Headspace Linearity |
2.5 Duplicate Analyses2.6 Multiple Headspace Extraction (MHE); 2.6.1 Principles of MHE; 2.6.2 Theoretical Background of MHE; 2.6.3 Simplified MHE Calculation; References; 3 The Technique of HS-GC; 3.1 Sample Vials; 3.1.1 Vial Types; 3.1.2 Selection of the Vial Volume; 3.1.3 Vial Cleaning; 3.1.4 Wall Adsorption Effects; 3.2 Caps; 3.2.1 Pressure on Caps; 3.2.2 Safety Closures; 3.3 Septa; 3.3.1 Septa Types; 3.3.2 Septum Blank; 3.3.3 Should a Septum Be Pierced Twice?; 3.3.3.1 Closed-Vial versus Open-Vial Sample Introduction Technique; 3.4 Thermostatting; 3.4.1 Influence of Temperature |
3.4.2 Working Modes3.5 The Fundamental Principles of Headspace Sampling Systems; 3.5.1 Systems Using Gas Syringes; 3.5.2 Solid Phase Microextraction (SPME); 3.5.2.1 Comparison of the Sensitivities in HS-SPME and Direct Static HS-GC; 3.5.3 Balanced Pressure Sampling Systems; 3.5.4 Pressure/Loop Systems; 3.5.5 Conditions for Pressurization Systems; 3.5.6 Volume of the Headspace Gas Sample; 3.5.6.1 Sample Volume with Gas Syringes; 3.5.6.2 Sample Volume with Loop Systems; 3.5.6.3 Sample Volume with the Balanced Pressure System; 3.6 Use of Open-Tubular (Capillary) Columns |
3.6.1 Properties of Open-Tubular Columns for Gas Samples3.6.2 Headspace Sampling with Split or Splitless Introduction; 3.6.3 Comparison of Split and Splitless Headspace Sampling; 3.6.4 Band Broadening During Sample Introduction; 3.6.5 Influence of Temperature on Band Broadening; 3.6.5.1 Conclusions; 3.6.6 The Combination of Different Columns and Detectors; 3.7 Enrichment Techniques in HS-GC; 3.7.1 Systems for Cryogenic Trapping; 3.7.1.1 Trapping by Cryogenic Condensation; 3.7.1.2 Trapping by Cryogenic Focusing; 3.7.1.3 Influence of Temperature on Cryogenic Focusing |
3.7.1.4 Comparison of the Various Techniques of Cryogenic Trapping |
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Sommario/riassunto |
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The only reference to provide both current and thorough coverage of this important analytical techniqueStatic headspace-gas chromatography (HS-GC) is an indispensable technique for analyzing volatile organic compounds, enabling the analyst to assay a variety of sample matrices while avoiding the costly and time-consuming preparation involved with traditional GC.Static Headspace-Gas Chromatography: Theory and Practice has long been the only reference to provide in-depth coverage of this method of analysis. The Second Edition has been thoroughly updated to reflect the most recent |
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