			Home About us Contact

Several Contributions (several + contribution)

Distribution by Scientific Domains

Humanities and Social Sciences	50%

Selected Abstracts

Cover Picture: Electrophoresis 13'09

ELECTROPHORESIS, Issue 13 2009
Article first published online: 20 JUL 200
Issue 13 is a special issue on "CE and CEC of Amino Acids, Peptides and Proteins" assembling 19 papers on various topics including fast, high efficient and high sensitive "CE and CEC techniques for quality control and purity determination of native and (bio)synthetic amino acids, peptides and proteins, for monitoring of their synthesis, isolation, chemical derivatization and enzymatic digestion and also for investigation of their interactions with other molecules. New methodologies, such as electrodialysis for sample preparation, chiral ligand-exchange CE, immunoaffinity CE, affinity capillary isoelectric focusing, combination of transient isotachophoretic preconcentration with capillary zone electophoresis (CZE) analysis, two-dimensional CE-mass spectrometry (MS) separations and advances in high-sensitive CE-laser induced fluorescence (LIF) and CE-electrochemiluminescence detection schemes, are widely presented here. The applications of CE and CEC methods include chiral analysis of amino acids, determination of low abundant amino acids, peptides and proteins in complex matrices, such as human and animal body fluids and tissue biopsies, and profiling of cell lysates and recombinant proteins, e.g. birch pollen allergen and human interleukin 7. As can be seen from several contributions, preparation of new capillary coatings suppressing the adsorption of peptides and proteins to the fused silica capillary wall in their CZE analyses and/or increasing the selectivity of their open-tubular CEC separations remains a hot topic in the area of CE and CEC developments. In addition, it is shown that through the theoretical modelling of the CZE determined effective electrophoretic mobilities of proteins, the important parameters, such as charge, hydration and shape of their molecules, can be estimated." [source]

Embodying Gender, Work and Organization: Solidarity, Cool Loyalties and Contested Hierarchy in a Masculinist Occupation

GENDER, WORK & ORGANISATION, Issue 5 2002
Lee F. MonaghanArticle first published online: 21 MAY 200
Despite a ,somatic turn' in the social sciences, there remains a dearth of theoretically informed research on male working bodies, the embodied doings of masculinities independent of biological sex and intra,gendered workplace relations. This is unfortunate because embodiment is thoroughly implicated in major social divisions, including gender domination in institutional contexts. Using an embodied sociological perspective and data generated during an ethnography of British nightclub and pub security work, this article goes some way towards embodying the social study of plural masculinities, work and organization. Exploring worker solidarity, cool loyalties and contested hierarchy in this risky masculinist occupation hopefully makes several contributions to the literature. Furthering the (theoretically informed) empirical study of masculinities and socially embedded bodies, the article sensitizes other researchers to gendered/embodied processes possibly taking a more diluted form in other work settings. [source]

Operator-oriented CRS interpolation

GEOPHYSICAL PROSPECTING, Issue 6 2009
German Hoecht
ABSTRACT In common-reflection-surface imaging the reflection arrival time field is parameterized by operators that are of higher dimension or order than in conventional methods. Using the common-reflection-surface approach locally in the unmigrated prestack data domain opens a potential for trace regularization and interpolation. In most data interpolation methods based on local coherency estimation, a single operator is designed for a target sample and the output amplitude is defined as a weighted average along the operator. This approach may fail in presence of interfering events or strong amplitude and phase variations. In this paper we introduce an alternative scheme in which there is no need for an operator to be defined at the target sample itself. Instead, the amplitude at a target sample is constructed from multiple operators estimated at different positions. In this case one operator may contribute to the construction of several target samples. Vice versa, a target sample might receive contributions from different operators. Operators are determined on a grid which can be sparser than the output grid. This allows to dramatically decrease the computational costs. In addition, the use of multiple operators for a single target sample stabilizes the interpolation results and implicitly allows several contributions in case of interfering events. Due to the considerable computational expense, common-reflection-surface interpolation is limited to work in subsets of the prestack data. We present the general workflow of a common-reflection-surface-based regularization/interpolation for 3D data volumes. This workflow has been applied to an OBC common-receiver volume and binned common-offset subsets of a 3D marine data set. The impact of a common-reflection-surface regularization is demonstrated by means of a subsequent time migration. In comparison to the time migrations of the original and DMO-interpolated data, the results show particular improvements in view of the continuity of reflections events. This gain is confirmed by an automatic picking of a horizon in the stacked time migrations. [source]

Historical Perspectives on Family Studies

JOURNAL OF MARRIAGE AND FAMILY, Issue 2 2000
Stephanie Coontz
This article explores the relationship of historical research to contemporary family studies. Family history was influenced greatly by fields such as sociology and anthropology, leading it to make several contributions to those fields in turn. The continuing collaboration of these disciplines can significantly enrich current family research, practice, and policy making. History's specific contribution lies in its attention to context. Although historical research confirms sociologic and ethnographic findings on the diversity of family forms, for example, it also reveals that all families are not created equal. The advantage of any particular type of family at any particular time is constructed out of contingent and historically variable social relationships. Historical research allows researchers to deepen their analysis of family diversity and family change by challenging widespread assumptions about what is and what is not truly new in family life. Such research complicates generalizations about the impact of family change and raises several methodological cautions about what can be compared and controlled for in analyzing family variations and outcomes. [source]