3,987 research outputs found
Review of Open Country, Iowa: Rural Women, Tradition and Change.
This book adds to a neglected area of research, rural women. Through the use of reminiscence, census data, agricultural surveys, interviews, and observations during a year of residency in a rural Iowa county, Deborah Fink examines women\u27s experience as members of a rural social system in which farming has been, until recently, considered a viable and valued opportunity, albeit a gender restricted occupation
Mechano-electric heterogeneity of the myocardium as a paradigm of its function
Myocardial heterogeneity is well appreciated and widely documented, from sub-cellular to organ levels. This paper reviews significant achievements of the group, led by Professor Vladimir S. Markhasin, Russia, who was one of the pioneers in studying and interpreting the relevance of cardiac functional heterogeneity
Incremental Change in Housing Regimes: Some Theoretical Propositions with Empirical Illustrations
The durable structures of housing and housing institutions are often subject to long-term processes of incremental change. Nevertheless, housing studies have largely focused either on static snapshots of policies or, more recently, on the inertia of institutional path dependence, while processes of incremental change have been almost entirely neglected. Political scientists (Streeck/Thelen/Mahoney) have proposed a typology of patterns of incremental institutional change, and this paper explores the applicability of this typology to housing structures and housing institutions. We draw on empirical illustrations from the housing literature to show how five types of change â layering, conversion, displacement, drift, exhaustion â apply to housing structures and institutions. We conclude with some general observations on how the typology can be used in further studies of developments in national housing regimes
Firm Foundations: The Statistical Footprint of Multinational Corporations as a Problem for Political Economy
The discipline of comparative political economy (CPE) relies heavily on aggregate, country-level economic indicators. However, the practices of multinational corporations have increasingly undermined this approach to measurement. The problem of indicator drift is well-documented by a growing critical literature and calls for systematic methodological attention in CPE. We present the case for a rocky but ultimately rewarding middle road between indicator fatalism and indicator faith. We illustrate our argument by examining two important cases â Swedenâs recent export success and the financialization of non-financial corporations in France. A careful parsing of the data suggests corrections to common characterizations of the two cases. Swedish exports have been reshaped by intragroup trade among foreign subsidiaries of domestic corporations. The growth of financial assets held by French firms is attributable to the growth of foreign direct investment and to cumulative revaluation effects, while what remains of financialization is concentrated among the very largest firms. Based on these findings, we propose a methodological routine that parses data by zooming in on the qualitative specifics of countries, sectors, and firms, while using all available options for disaggregation.Die vergleichende politische Ăkonomie (CPE) stĂŒtzt sich in hohem MaĂe auf aggregierte, lĂ€ndervergleichende Wirtschaftsindikatoren. Die Praktiken multinationaler Unternehmen haben diesen Ansatz jedoch zunehmend unterminiert. Das Problem abdriftender Indikatoren wird durch eine wachsende kritische Literatur gut dokumentiert und erfordert eine systematische methodische Antwort. Wir plĂ€dieren fĂŒr einen Mittelweg zwischen Indikator-Fatalismus und Indikator-Glauben und veranschaulichen unser Argument anhand von zwei wichtigen FĂ€llen â Schwedens jĂŒngstem Exporterfolg und der Finanzialisierung von nichtfinanziellen Unternehmen in Frankreich. Eine sorgfĂ€ltige Analyse der Daten zeigt, dass der Handel zwischen auslĂ€ndischen Tochtergesellschaften inlĂ€ndischer Unternehmen die schwedische Exportstatistik prĂ€gt und dass das Wachstum der von französischen Unternehmen gehaltenen Finanzaktiva auf auslĂ€ndische Direktinvestitionen und kumulative Bewertungseffekte zurĂŒckzufĂŒhren und auĂerdem auf multinationale GroĂunternehmen konzentriert ist. Methodisch schlagen wir die routinemĂ€Ăige RĂŒckbindung vergleichender Analysen an die qualitativen Besonderheiten von LĂ€ndern, Sektoren und Unternehmen vor sowie eine verstĂ€rkte Nutzung verfĂŒgbarer Möglichkeiten zur Disaggregation.Contents 1 Introduction 2 The problems with measuring âthe economyâ Indicator critique in neighboring fields Four major fields of indicator problems 3 Growth models, export indicators, and the globalization of production Macroeconomic pattern recognition in the growth model literature The rise of merchanting in Swedenâs trade data The growth of merchanting as a problem for data legibility The decreasing value of derived indicators 4 Not so financialized after all? Firm financialization in France Disaggregating financial assets: components, valuation, concentration Financial income: From gross to net 5 Methodological ways forward: Zoom in and disaggregate 6 Conclusion Reference
Firm Foundations: The Statistical Footprint of Multinational Corporations as a Problem for Political Economy
The discipline of comparative political economy (CPE) relies heavily on aggregate, country-level economic indicators. However, the practices of multinational corporations have increasingly undermined this approach to measurement. The problem of indicator drift is well documented by a growing critical literature and calls for systematic methodological attention in CPE. We present the case for a rocky but ultimately rewarding middle road between indicator fatalism and indicator faith. We illustrate our argument by examining two important casesâSwedenâs recent export success and the financialization of non-financial corporations in France. A careful parsing of the data suggests corrections to common characterizations of the two cases. Swedish exports have been reshaped by intragroup trade among foreign subsidiaries of domestic corporations. The growth of financial assets held by French firms is attributable to the growth of foreign direct investment and to cumulative revaluation effects, while what remains of financialization is concentrated among the very largest firms. Based on these findings, we propose a methodological routine that parses data by zooming in on the qualitative specifics of countries, sectors, and firms, while using all available options for disaggregation.Introduction The problems with measuring âthe economyâ Growth models, export indicators, and the globalization of production Not so financialized after all? Firm financialization in France Methodological ways forward: Zoom in and disaggregate Conclusion Notes Reference
Spindle-E acts antivirally against alphaviruses in mosquito cells
Mosquitoes transmit several human- and animal-pathogenic alphaviruses (Togaviridae
family). In alphavirus-infected mosquito cells two different types of virus-specific small RNAs are
produced as part of the RNA interference response: short-interfering (si)RNAs and
PIWI-interacting (pi)RNAs. The siRNA pathway is generally thought to be the main antiviral
pathway. Although an antiviral activity has been suggested for the piRNA pathway its role in host
defences is not clear. Knock down of key proteins of the piRNA pathway (Ago3 and Piwi5) in Aedes
aegypti-derived cells reduced the production of alphavirus chikungunya virus (CHIKV)-specific
piRNAs but had no effect on virus replication. In contrast, knock down of the siRNA pathway key
protein Ago2 resulted in an increase in virus replication. Similar results were obtained when
expression of Piwi4 was silenced. Knock down of the helicase Spindle-E (SpnE), an essential
co-factor of the piRNA pathway in Drosophila melanogaster, resulted in increased virus replication
indicating that SpnE acts as an antiviral against alphaviruses such as CHIKV and the related
Semliki Forest virus (SFV). Surprisingly, this effect was found to be independent of the siRNA and
piRNA pathways in Ae. aegypti cells and specific for alphaviruses. This suggests a small
RNA-independent antiviral function for this protein in mosquitoes
Correlation Between Student Collaboration Network Centrality and Academic Performance
We compute nodal centrality measures on the collaboration networks of
students enrolled in three upper-division physics courses, usually taken
sequentially, at the Colorado School of Mines. These are complex networks in
which links between students indicate assistance with homework. The courses
included in the study are intermediate Classical Mechanics, introductory
Quantum Mechanics, and intermediate Electromagnetism. By correlating these
nodal centrality measures with students' scores on homework and exams, we find
four centrality measures that correlate significantly with students' homework
scores in all three courses: in-strength, out-strength, closeness centrality,
and harmonic centrality. These correlations suggest that students who not only
collaborate often, but also collaborate significantly with many different
people tend to achieve higher grades. Centrality measures between simultaneous
collaboration networks (analytical vs. numerical homework collaboration)
composed of the same students also correlate with each other, suggesting that
students' collaboration strategies remain relatively stable when presented with
homework assignments targeting different skills. Additionally, we correlate
centrality measures between collaboration networks from different courses and
find that the four centrality measures with the strongest relationship to
students' homework scores are also the most stable measures across networks
involving different courses. Correlations of centrality measures with exam
scores were generally smaller than the correlations with homework scores,
though this finding varied across courses.Comment: 10 pages, 4 figures, submitted to Phys. Rev. PE
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