N. Kim

We now take for granted that despite the disproportionate contribution of females to initial growth of their progeny, there is little or no asymmetry in the contribution of males and females to the eventual character of their shared offspring. In fact, this key insight was only established towards the end of the eighteenth century by Joseph Koelreuter's pioneering plant breeding experiments. If males and females supply equal amounts of hereditary material, then the latter must double each time an embryo is conceived. How then does the amount of this mysterious stuff not multiply exponentially from generation to generation? A compensatory mechanism for diluting the hereditary material must exist, one that ensures that if each parent contributes one half, each grandparent contributes a quarter, and each great grandparent merely an eighth. An important piece of the puzzle of how hereditary material is diluted at each generation has been elucidated over the past ten years.

Does environmental management help foreign firms outperform local firms in emerging economies? While existing research suggests that environmental management may or may not benefit firm performance, the question is particularly under-investigated in the emerging economy context. Using the data on foreign investment into China, this study explores whether foreign firms that are under greater environmental pressure, at home or at the host, outperform comparable local firms in an emerging host country. In making this comparison, we use propensity-score matching and a difference-in-differences approach to handle the problem of endogeneity inherent in comparing the performances of foreign versus local firms. We find empirical support that foreign firms perform better than local firms when they are under high environmental pressure in the emerging host country, and this result is driven by the foreign firms originating from countries with high environmental pressure.

The present thesis was directed at the hypothesis that to perceive an event is to detect an invariant specific to the style of change and an invariant specific to the object undergoing the style of change--the reciprocal invariants of transformation and structure, respectively. Events were defined by seven, well-defined global mathematical transformations that produced a variety of styles of change over different objects. In Experiment 1, each transformation was applied dynamically to four different facial profiles, presented visually by computer. Observers distinguished reliably among these events on the basis of their respective transformational invariants. Experiments 2 and 3 examined the generative and abstract aspects of transformational invariants. In each, an event was presented as a sequence of static samples and examined in an interpolation task and an extrapolation task . The transformational invariants proved sufficiently generative to specify retrospectively and prospectively and sufficiently abstract to specify both event tokens and event types. Experiment 4 addressed the relative persistence of a style of change over structure. The stimulus sequence was constructed of different objects transformed the same way. Types of change and types of object structures interacted, implying that certain styles of change are more conducive to certain object structures. Experiment 5 found that, with minor qualifications, the structural invariant was reliably detectable without being affected by the particular style of change applied. Further, some styles of change, when sufficiently magnified, induced non-trivial changes in underlying structure sufficient to render successive instances of the structure non-identical. Taken together, the experiments provide support for the hypothesis that perceiving an event is essentially equivalent to detecting the two reciprocal invariants of transformation and structure that together specify the event

Eukaryotic chromosomes undergo dramatic changes and movements during mitosis. These include the individualization and compaction of the two copies of replicated chromosomes (the sister chromatids) and their subsequent segregation to the daughter cells. Two multisubunit protein complexes termed ‘cohesin’ and ‘condensin’, both composed of SMC (Structural Maintenance of Chromosomes) and kleisin subunits, have emerged as crucial players in these processes. Cohesin is required for holding sister chromatids together whereas condensin, together with topoisomerase II, has an important role in organizing individual axes of sister chromatids prior to their segregation during anaphase. SMC and kleisin complexes also regulate the compaction and segregation of bacterial nucleoids. New research suggests that these ancient regulators of chromosome structure might function as topological devices that trap chromosomal DNA between 50 nm long coiled coils. BioEssays 25:1178–1191, 2003. © 2003 Wiley Periodicals, Inc.

The instrumental benefits of firm’s CSR activities are contingent upon the stakeholders’ awareness and favorable attribution. While social media creates an important momentum for firms to cultivate favorable awareness by establishing a powerful framework of stakeholder relationships, the opportunities are not distributed evenly for all firms. In this paper, we investigate the impact of CSR credentials on the effectiveness of social media as a stakeholder-relationship management platform. The analysis of Fortune 500 companies in the Twitter sphere reveals that a higher CSR rating is a strong indicator of an earlier adoption, a faster establishment of online presence, a higher responsiveness to the firm’s identity, and a stronger virality of the messages. Incidentally, the higher CSIR rating is also found to be associated with the stronger virality. Our findings also suggest that socially responsible firms can harvest proactive stakeholders’ participation without investing more resources. As the first study that conceptualizes the social media as a proponent of CSR, this paper contends that “being socially responsible” makes more practical sense for firms with the rise of social media.

Company–cause fit has been one of the major issues in the domain of corporate social responsibility. This study tries to expand the perspective from company–cause to company–non-profit organization (NPO) fit, and it gives implications to firms looking for long-term collaboration with an NPO. Specifically, it suggests three types of fit, i.e., familiarity, business, and activity fit and investigates the potential effects of these fits in social alliances between companies and the partnering NPOs on consumer attributions of the firms’ motives for the alliances. An experiment that used scenarios revealed that consumers perceive high-fitted alliances on the dimensions of the familiarity and activity fit as being more public-serving than low-matched ones. However, the consumers’ attribution of the motive is not different between the high and low business fit. The implications of the research results are discussed from an academic and practical standpoint.