Martin Paul Block

A measurement of the lifetime of the Λ3 H hypernucleus

Abstract The mean lifetime of the hypernucleus Λ 3 H has been measured in a helium bubble chamber with the result, τ ( Λ 3 H )=(2.46 −0.41 +0.62 )×10 −10 sec, based on 16 examples of the decay mode Λ 3 H→ π − + 3 He and 24 examples of the decay mode Λ 3 H→ π − +p+d. The decay branching ratio R 3 = Γ ( Λ 3 H → π − + 3He)/ Γ ( Λ 3 H → all π − modes ) has been estimated to be 0.30 ± 0.07.

Understanding consumer-created media synergy

Research on media synergy has traditionally been based on estimates using the media purchases made by the marketer. Assumptions are, therefore, made by the marketer about how the various media interact. This paper argues that media synergy only occurs at the consumer media consumption level, that is it is the consumer who creates the interactions and thus, any synergy, not just the media forms. Although the media forms may be available, they do not interact until the consumer creates some type of interaction. Using a nationally projectable online sample of consumer-reported media usage in the USA, based on (a) the media forms consumed, (b) the amount of time spent with each consumed media form, (c) which accessed media forms are used in what combination, and (d) the reported influence of each media form on future purchases in eight broad product categories, we developed a new view of media synergy. From that, media relationships are estimated using factor analysis. From the extracted factors, estimations of consumer media interactions are made in six product categories using χ2 automatic interaction detection analysis. Unique media synergies are found in each product category and among each customer group studied.

The relationship between self-report of depression and media usage

Depression is a debilitating condition that adversely affects many aspects of a persons life and general health. Earlier work has supported the idea that there may be a relationship between the use of certain media and depression. In this study, we tested if self-report of depression (SRD), which is not a clinically based diagnosis, was associated with increased internet, television, and social media usage by using data collected in the Media Behavior and Influence Study (MBIS) database (N = 19,776 subjects). We further assessed the relationship of demographic variables to this association. These analyses found that SRD rates were in the range of published rates of clinically diagnosed major depression. It found that those who tended to use more media also tended to be more depressed, and that segmentation of SRD subjects was weighted toward internet and television usage, which was not the case with non-SRD subjects, who were segmented along social media use. This study found that those who have suffered either economic or physical life setbacks are orders of magnitude more likely to be depressed, even without disproportionately high levels of media use. However, among those that have suffered major life setbacks, high media users—particularly television watchers—were even more likely to report experiencing depression, which suggests that these effects were not just due to individuals having more time for media consumption. These findings provide an example of how Big Data can be used for medical and mental health research, helping to elucidate issues not traditionally tested in the fields of psychiatry or experimental psychology.

Sounds of music: exploring consumers’ musical engagement

Purpose Although “engagement” is receiving increasing attention in the marketing literature, the characteristics and dynamics characterizing this concept in specific contextual conditions, including consumers’ selection of particular music and ensuing music-related behaviors, remain nebulous to date. This study aims to develop the concept of consumers’ musical engagement (ME) and explore it within a broader nomological network of conceptual relationships. Design/methodology/approach To investigate the research gap, the authors deploy a survey sampling 2,498 US-based adults to develop and confirm a 25-item ME scale. The authors also test their scale in a broader nomological network of specific theoretical relationships using regression and mediation modeling. Findings The authors identify three ME factors, namely, social identity, transportive and affect-inducing engagements. The authors find ME to exhibit a nonlinear effect on music consumption with increasing returns. Although both social identity and transportive experiences represent significant predictors of music consumption, the effect of affect-inducing experience is non-significant. Further, the social identity experience has a significantly greater association with music consumption than the transportive experience. Research limitations/implications This paper provides a conceptualization and an associated diagnostic tool for ME, in addition to initial insight into the role of ME in a broader nomological network of conceptual relationships. Based on the identified research limitations, the authors also provide key future research directions for ME. Practical implications The insight attained into ME may be used to underpin the design, implementation and evaluation of managerial ME-based tactics and strategies in the music industry. In particular, the authors find that successful appeals to consumers’ social identity engagement are a significant driver of increased future music consumption. The authors provide a number of managerial recommendations to develop this particular ME dimension. Originality/value This paper provides an ME conceptualization and an associated scale and explores ME within a broader nomological network of theoretical relationships. The authors also draw key implications from these analyses.

Understanding customer brand engagement behaviors in today's interactive marketplace

Customer Brand Engagement (Cbe) is a new marketing/branding concept, flowing from the early work of Aaker and Keller on brandsand branding, but, expanded and extended by others. As an emerging concept, multiple definitions and measurement methodologies have been suggested. Most approaches have been based on attitudinal constructs and measures. We propose an approach based actual concreterecommending behaviors by brand customers, framed around an adaptationof Reichhelds Net Promoter Score. We extend and expand Nps to provide a measurable marketer value for the development of Cbe.

Measurement of decay branching ratios for the {Mathematical expression} hypernucleushypernucleus

SummaryDecay branching ratios of the

Consumer-driven media planning and buying

{}_\Lambda ^4 He

Brands and Consumer Relationships

c hypernucleus have been measured using a sample of hypernuclei produced in the interactions at rest of K−-mesons in a helium bubble chamber. The observation of 6 π+-mesonic decays leads to a value of 0.043±0.017 for the π+-mesonic/π−-mesonic decay branching ratio. No examples of the charged two-body nonmesonic decays of the hypernucleus were observed.RiassuntoSi sono misurati i rapporti di suddivisione del decadimento dell’ipernucleo