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Important Assumptions (important + assumption)
Selected AbstractsThe Strategic Substitution of United States Foreign AidFOREIGN POLICY ANALYSIS, Issue 2 2010Christopher J. Fariss I present a foreign policy decision-making theory that accounts for why US food aid is used strategically when other more powerful economic aid tools are at the disposal of policymakers. I focus my analysis on US food aid because this aid program provides an excellent case with which to test for the existence of foreign policy substitution. Substitution is an important assumption of many foreign policy theories yet proves to be an allusive empirical phenomenon to observe. Central to this analysis is the identification of legal mechanisms such as the ,,needy people" provision in the US foreign aid legislation that legally restrict certain types of aid; this mechanism, however, does allow for the allocation of certain types of foreign aid, such as food aid, to human rights abusing regimes. Thus, I test if food aid is used as a substitute for human rights abusing states while methodologically accounting for other aid options. The empirical results, estimated with a multinomial logit and Heckman model, demonstrate that countries with high levels of human rights abuse are (i) more likely to receive food aid and (ii) receive greater amounts of food aid even when controlling for other economic aid, the conditioning effect of strategic interests and humanitarian need over the period 1990,2004. [source] Self-awareness of mastery and improvability of entrepreneurial competence in small businesses in the agrifood sectorHUMAN RESOURCE DEVELOPMENT QUARTERLY, Issue 2 2010Thomas Lans An important assumption of entrepreneurial competence is that (at least part of) it can be learned and developed. However, human resources development (HRD) practices aimed at further strengthening and developing small-business owner,managers' entrepreneurial competence are complex and underdeveloped. A multisource assessment of owner,managers' entrepreneurial competence in a well-defined sector was conducted to provide an answer to the research question: How do self-assessments about mastery and improvability of entrepreneurial competence made by owner,managers relate to the same assessments made by significant others in the small-business work environment? The data show that owner,managers rate their own mastery of entrepreneurial competence significantly lower than internal assessors in their work environment do. Furthermore, the assessors indicate many possible areas for improvement of owner,managers' entrepreneurial competence. Nonetheless, mastery and improvability patterns differ considerably between the assessors. Multisource assessments as adopted in this study can help owner,managers raise their self-awareness, and consequently help them bypass some of their often costly trial-and-error learning. [source] When smokers are resistant to change: experimental analysis of the effect of patient resistance on practitioner behaviourADDICTION, Issue 8 2005Nick Francis ABSTRACT Aims In the field of motivational interviewing, practitioner confrontational behaviour has been associated with lower levels of patient behaviour change. We set out to explore whether resistance to change among smokers affects practitioner confrontational and other behaviours. Design Experimental manipulation of levels of patient resistance in a role play. Setting The study was conducted at the start of a 2-day health behaviour change workshop. Participants Thirty-two practitioners who had registered for the workshop. Intervention The practitioners were assigned randomly to interview a standardized patient (actor) who portrayed a smoker who had been briefed to display either high or low levels of resistance to change. Measurements Interviews were audiotaped and transcribed. Practitioners and standardized patients completed interview ratings at the end of each interview. After listening to each taped interview practitioners were assigned a global score for confrontation, empathy and expert instructional style. Interviews were then submitted to a qualitative analysis. Findings Higher levels of practitioner confrontational behaviour were observed in the high resistance group. This was evident both from the global scores (median 2 versus 0, P = 0.001) and the qualitative analysis. Global scores for empathy and expert instruction were not significantly different. Qualitative analysis also suggests a pervasive negative impact on other practitioner behaviours. Conclusions Higher patient resistance probably leads to an increase in confrontational and other negative behaviours in health professionals attempting to promote behaviour change. This challenges important assumptions about the influence of practitioner behaviour on patient behaviour and subsequent health-related outcomes. [source] Applications of stable isotope analyses to avian ecologyIBIS, Issue 3 2008RICHARD INGER In the past 20 years the use of stable isotope analysis has become increasingly common in ecological studies. In fact, in some instances these techniques have yielded remarkable insights into the foraging preferences and migrations of birds. Despite these advances and the potential of the approach, it is possibly still not as widely used as might be expected. In this paper we aim to illustrate the potential of the approach in the hope of encouraging more avian ecologists to think again about how these techniques might provide insights in the systems on which they work. We discuss some of the principles behind the approach, and review some of the more recent ornithological studies that have used stable isotope techniques to trace trophic pathways or infer migratory origins. We follow this by discussing some of the latest ideas on how stable isotopes may be used to generate community metrics and close by detailing the important assumptions and caveats that should be considered before undertaking any studies using this technique. [source] INVITED REVIEW: Plant self-incompatibility in natural populations: a critical assessment of recent theoretical and empirical advancesMOLECULAR ECOLOGY, Issue 10 2004VINCENT CASTRIC Abstract Self-incompatibility systems in plants are genetic systems that prevent self-fertilization in hermaphrodites through recognition and rejection of pollen expressing the same allelic specificity as that expressed in the pistils. The evolutionary properties of these self-recognition systems have been revealed through a fascinating interplay between empirical advances and theoretical developments. In 1939, Wright suggested that the main evolutionary force driving the genetic and molecular properties of these systems was strong negative frequency-dependent selection acting on pollination success. The empirical observation of high allelic diversity at the self-incompatibility locus in several species, followed by the discovery of very high molecular divergence among alleles in all plant families where the locus has been identified, supported Wright's initial theoretical predictions as well as many of its later developments. In the last decade, however, advances in the molecular characterization of the incompatibility reaction and in the analysis of allelic frequencies and allelic divergence from natural populations have stimulated new theoretical investigations that challenged some important assumptions of Wright's model of gametophytic self-incompatibility. We here review some of these recent empirical and theoretical advances that investigated: (i) the hypothesis that S -alleles are selectively equivalent, and the evolutionary consequences of genetic interactions between alleles; (ii) the occurrence of frequency-dependent selection in female fertility; (iii) the evolutionary genetics of self-incompatibility systems in subdivided populations; (iv) the evolutionary implications of the self-incompatibility locus's genetic architecture; and (v) of its interactions with the genomic environment. [source] Variation in oxygen isotope fractionation during cellulose synthesis: intramolecular and biosynthetic effectsPLANT CELL & ENVIRONMENT, Issue 10 2006LEONEL STERNBERG ABSTRACT The oxygen isotopic composition of plant cellulose is commonly used for the interpretations of climate, ecophysiology and dendrochronology in both modern and palaeoenvironments. Further applications of this analytical tool depends on our in-depth knowledge of the isotopic fractionations associated with the biochemical pathways leading to cellulose. Here, we test two important assumptions regarding isotopic effects resulting from the location of oxygen in the carbohydrate moiety and the biosynthetic pathway towards cellulose synthesis. We show that the oxygen isotopic fractionation of the oxygen attached to carbon 2 of the glucose moieties differs from the average fractionation of the oxygens attached to carbons 3,6 from cellulose by at least 9%, for cellulose synthesized within seedlings of two different species (Triticum aestivum L. and Ricinus communis L.). The fractionation for a given oxygen in cellulose synthesized by the Triticum seedlings, which have starch as their primary carbon source, is different than the corresponding fractionation in Ricinus seedlings, within which lipids are the primary carbon source. This observation shows that the biosynthetic pathway towards cellulose affects oxygen isotope partitioning, a fact heretofore undemonstrated. Our findings may explain the species-dependent variability in the overall oxygen isotope fractionation during cellulose synthesis, and may provide much-needed insight for palaeoclimate reconstruction using fossil cellulose. [source] Attitudes towards globalization and cosmopolitanism: cultural diversity, personal consumption and the national economyTHE BRITISH JOURNAL OF SOCIOLOGY, Issue 2 2008Ian Woodward Abstract One of the widely accepted consequences of globalization is the development of individual outlooks, behaviours and feelings that transcend local and national boundaries. This has encouraged a re-assessment of important assumptions about the nature of community, personal attachment and belonging in the face of unprecedented opportunities for culture, identities and politics to shape, and be shaped by, global events and processes. Recently, the upsurge of interest in the concept of cosmopolitanism has provided a promising new framework for understanding the nexus between cosmopolitan dispositions and global interconnectedness across cultural, political and economic realms. Using data from a representative social survey of Australians this paper investigates the negotiation of belonging under the conditions of globalization. The data tap into attitudes and behaviours associated with a broad gamut of cosmopolitan traits in the domains of culture, consumption, human rights, citizenship, and international governance. They show how cosmopolitan outlooks are shaped by social structural factors, and how forms of identification with humanity and the globe are fractured by boundaries of self and others, threats and opportunities, and the value of things global and local. [source] | |||||||||||||