scholarly journals Reimagining omnivorousness in the context of place

2016 ◽  
Vol 17 (3) ◽  
pp. 480-503 ◽  
Author(s):  
David Cutts ◽  
Paul Widdop
Keyword(s):  
Latent Class ◽  
Underlying Mechanism ◽  
Regional Level ◽  
Active Networks ◽  
Innovative Approach ◽  
Cultural Patterns ◽  
Group Heterogeneity ◽  
Key Driver ◽  
Consumption Habits

Place is a key driver in the formation and maintenance of cultural lifestyles. Yet, place remains largely ignored in scholarly studies of cultural omnivorousness. After establishing whether there are different modes of omnivorousness as well as distinguishing between other cultural lifestyles, this article then takes a first step in readdressing this anomaly by examining whether clustering exists at the regional level in England. Using a methodologically innovative approach to simultaneously capture latent class typologies and between-group heterogeneity at the area scale, our findings illustrate how place is vital to consumption habits, particularly to voracious omnivores. We argue that the underlying mechanism behind these cultural patterns at the area level is contextual in nature, and in the case of voracious omnivores, primarily due to the supply of cultural items and the importance of likeminded individuals in active networks.

scholarly journals PIRACY REVISITED: EXPLORING MUSIC USERS IN THE AGE OF TECHNOLOGY DEPENDENCY

2019 ◽  
pp. 25-35
Author(s):  
Manuel Cuadrado-García ◽  
María José Miquel-Romero ◽  
Juan D. Montoro-Pons
Keyword(s):  
Latent Class ◽  
The Internet ◽  
Recorded Music ◽  
Music Genres ◽  
Special Part ◽  
Music Consumption ◽  
Using Data ◽  
Technology Dependency ◽  
Consumption Habits

This paper empirically investigates and characterizes users of recorded music, both downloaders and purchasers. To this end we analyse the role of the variables defining the different segments of music users. In doing so, we have considered two main traits influencing the use of music. First, objective variables such as demographics, music consumption habits, music genres and technology. Second, subjective variables such as motives and attitudes towards piracy. Using data from a personal survey, subsequent latent class and fuzzy analyses show that while the former characteristics are relevant in those getting music for free from the Internet, the latter don´t pay any special part, contrary to what literature had suggested. Specifically, we find evidence of age, gender, technology, and genre of music confirming previous studies carried out on this topic before the existing gap in the literature. However, there is no evidence of these variables defining patterns of purchase behaviour.

Choosing the Right Baskets for Your Eggs: Deriving Actionable Customer Segments Using Supervised Genetic Algorithms

2012 ◽  
Vol 54 (5) ◽  
pp. 689-706 ◽  
Author(s):  
Sam Davis
Keyword(s):  
Genetic Algorithms ◽  
Latent Class ◽  
Multivariate Technique ◽  
Latent Class Regression ◽  
Survey Sample ◽  
Key Driver ◽  
Research Questions ◽  
Driver Analysis ◽  
The Right ◽  
Sample Homogeneity

In the context of key driver analysis in applied customer satisfaction research, the assumption of sample homogeneity (that single models perform adequately over the entirety of a survey sample) can be shown to restrict the value of the insights derived. While latent class regression has been used as a method of circumventing some of these issues, it is proposed that there are major barriers to both uptake and successful practical usage of the technique. Several of these issues are common to any multivariate technique, while others are specific to latent class regression. Following an examination of these issues, we introduce an alternative technique for deriving discrete latent classes, using a combination of genetic algorithms and (bivariate) correlations. This paper concludes that the proposed approach outperforms latent class regression in its ability to deliver action-orientated insights, and is better placed to assist marketers facing real-world research questions and datasets.

scholarly journals Trajectories of adolescent conduct problems in relation to cortical thickness development: a longitudinal MRI study

2016 ◽  
Vol 6 (6) ◽  
pp. e841-e841 ◽  
Author(s):  
S Oostermeijer ◽  
S Whittle ◽  
C Suo ◽  
N B Allen ◽  
J G Simmons ◽  
...  
Keyword(s):  
Conduct Problems ◽  
Cortical Thickness ◽  
Latent Class ◽  
Underlying Mechanism ◽  
Estimating Equation ◽  
Hippocampal Volume ◽  
Anterior Cingulate ◽  
Typical Pattern ◽  
Cross Sectional ◽  
Mri Scans

Abstract Multiple cross-sectional imaging studies have identified structural abnormalities in prefrontal, temporal and limbic regions related to conduct problems (CPs). However, the relationship between development of such neurobiological deficits and developmental pathways of CPs has remained unclear. The current study investigated distinct trajectories of CP and related trajectories of cortical thickness within a community-based sample of adolescents (n=239), age range 12–19, to address this gap. Three trajectory classes were revealed using latent class growth analyses (LCGAs), comprising a ‘desisting’ CP group, an ‘intermediate’ CP group and a ‘stable low’ CP group. Structural magnetic resonance imaging (MRI) scans were collected with a subgroup of 171 adolescents at three waves throughout adolescence (ages 12, 16 and 19). Generalized estimating equation (GEE) analysis—comparing longitudinal changes in cortical thickness and subcortical volume between CP groups for several regions of interest (ROIs)—showed that these CP groups had differential trajectories of cortical thickness in the dorsolateral prefrontal cortex (dl-PFC), and the anterior cingulate cortex (ACC), and volume of the hippocampus. Adolescents in the desisting CP group showed an attenuation of the typical pattern of cortical thinning as present in the intermediate and stable low CP groups, in addition to an exaggeration of the typical pattern of hippocampal volume increase. These findings suggest that a deviant cortical thickness trajectory was related to a desisting CP pathway across adolescence. Such deviant neurodevelopmental growth trajectories may act as an underlying mechanism for developmental CP pathways, and possibly distinguish desisting antisocial adolescents.

Framing a promotional offer as free-with-purchase or as a bundle? The perspective of information salience

2020 ◽  
Vol 38 (4) ◽  
pp. 495-507
Author(s):  
Hsuan-Hsuan Ku ◽  
Szu-Han Wang ◽  
Hao-Wei Chiang
Keyword(s):  
Underlying Mechanism ◽  
The Body ◽  
Perceived Benefits ◽  
Content Type ◽  
Body Of Knowledge ◽  
Key Driver ◽  
Information Salience ◽  
Concept Of Information ◽  
High Level ◽  
Published Research

PurposeBased on the concept of information salience, the research investigates the factors that might drive potential differences in consumers' preferences between offers framed as free with purchase or as a bundle.Design/methodology/approachFour experiments examined how participants' preferences for bundled offers or free-with-purchase offers varied as a function of the perceived benefits to be obtained from the supplementary products (studies 1a and 1b) and identified participants' sensitivity to the price of the supplementary component as a mediator of the framing effect of a promotional offer (study 2) and the provision of information facilitating the drawing of comparisons as the boundary condition constraining the effectiveness of a free-with-purchase offer (study 3).FindingsResults show that a bundled offer is preferable to a free-with-purchase offer when the supplementary product provides a high-level rather than a low-level benefit and identify price sensitivity as an underlying mechanism behind the observed effect. Furthermore, consumers' sensitivity to the value of the focal product in the deal brought to their attention by comparative information makes a fair charge for a relatively unattractive component the preferable offer.Originality/valueWhile much of the existing published research on bundled offers focuses on the assigning of discounts to individual products in the bundle, this study adds to the body of knowledge by showing that variation in perceived benefits is the key driver of different responses to a free-with-purchase offer versus a bundled offer.

scholarly journals YTHDF1 drives intestinal immune response against bacterial infection

2020 ◽  
Author(s):  
Xin Zong ◽  
Xiao Xiao ◽  
Bin Shen ◽  
Qin Jiang ◽  
Hong Wang ◽  
...  
Keyword(s):  
Immune Response ◽  
Immune Responses ◽  
Bacterial Infection ◽  
Pathogenic Bacteria ◽  
Stop Codon ◽  
Tumor Necrosis Factor Receptor ◽  
Underlying Mechanism ◽  
Innate Immune Responses ◽  
Key Driver ◽  
Unique Mechanism

AbstractInvasion of pathogenic bacteria is a serious threat to intestinal health. Recent emerging evidence has demonstrated that N6-methyladenosine (m6A) is closely associated with innate immunity; however, the underlying mechanism remains unclear. Herein, we aim to explore the function and mechanism of m6A modification in the regulation of innate immune responses against bacterial pathogens in the intestine. Ribo-seq and m6A-seq data have demonstrated that YTHDF1, an m6A reader, directs the translation of tumor necrosis factor receptor-associated factor 6 (TRAF6) mRNA to regulate immune responses via modulation of m6A methylation near stop codon. Furthermore, we have identified a unique mechanism that the interaction between YTHDF1 and the host factor DDX60 are critical in regulating intestinal immune response against bacterial infection by recognizing TRAF6 target transcripts. Additionally, our results provide novel insights as to why YTHDF1 could recognize its unique targets using the same domain as other YTHDF proteins. This work identifies YTHDF1 as a key driver of intestinal immune responses and provides an avenue for development of novel strategies to modulate intestinal immune response against bacterial infection.

Face Inversion Effect Emerges Under Critical Configural Discrepancy

2010 ◽  
Vol 69 (3) ◽  
pp. 161-167 ◽  
Author(s):  
Jisien Yang ◽  
Adrian Schwaninger
Keyword(s):  
Face Recognition ◽  
Face Processing ◽  
Underlying Mechanism ◽  
Inversion Effect ◽  
Configural Processing ◽  
Major Contributor ◽  
Face Inversion Effect ◽  
Configural Information ◽  
Face Inversion ◽  
The Face

Configural processing has been considered the major contributor to the face inversion effect (FIE) in face recognition. However, most researchers have only obtained the FIE with one specific ratio of configural alteration. It remains unclear whether the ratio of configural alteration itself can mediate the occurrence of the FIE. We aimed to clarify this issue by manipulating the configural information parametrically using six different ratios, ranging from 4% to 24%. Participants were asked to judge whether a pair of faces were entirely identical or different. The paired faces that were to be compared were presented either simultaneously (Experiment 1) or sequentially (Experiment 2). Both experiments revealed that the FIE was observed only when the ratio of configural alteration was in the intermediate range. These results indicate that even though the FIE has been frequently adopted as an index to examine the underlying mechanism of face processing, the emergence of the FIE is not robust with any configural alteration but dependent on the ratio of configural alteration.

Zur Anwendung der CES-D bei älteren Menschen: Dimensionsstruktur und Meßartefakte

Diagnostica ◽  
2000 ◽  
Vol 46 (1) ◽  
pp. 29-37 ◽  
Author(s):  
Herbert Matschinger ◽  
Astrid Schork ◽  
Steffi G. Riedel-Heller ◽  
Matthias C. Angermeyer
Keyword(s):  
Mental State ◽  
Latent Class ◽  
Mini Mental State Examination ◽  
Depression Scale ◽  
Epidemiological Studies ◽  
Partial Credit ◽  
Examination Score ◽  
State Examination

Zusammenfassung. Beim Einsatz der Center for Epidemiological Studies Depression Scale (CES-D) stellt sich das Problem der Dimensionalität des Instruments, dessen Lösung durch die Konfundierung eines Teilkonstruktes (“Wohlbefinden”) mit Besonderheiten der Itemformulierung Schwierigkeiten bereitet, da Antwortartefakte zu erwarten sind. Dimensionsstruktur und Eignung der CES-D zur Erfassung der Depression bei älteren Menschen wurden an einer Stichprobe von 663 über 75-jährigen Teilnehmern der “Leipziger Langzeitstudie in der Altenbevölkerung” untersucht. Da sich die Annahme der Gültigkeit eines partial-credit-Rasch-Modells sowohl für die Gesamtstichprobe als auch für eine Teilpopulation als zu restriktiv erwies, wurde ein 3- bzw. 4-Klassen-latent-class-Modell für geordnete Kategorien berechnet und die 4-Klassen-Lösung als den Daten angemessen interpretiert: Drei Klassen zeigten sich im Sinne des Konstrukts “Depression” geordnet, eine Klasse enthielt jene Respondenten, deren Antwortmuster auf ein Antwortartefakt hinwiesen. In dieser Befragtenklasse wird der Depressionsgrad offensichtlich überschätzt. Zusammenhänge mit Alter und Mini-Mental-State-Examination-Score werden dargestellt. Nach unseren Ergebnissen muß die CES-D in einer Altenbevölkerung mit Vorsicht eingesetzt werden, der Summenscore sollte nicht verwendet werden.

New Evidence on the Construct Validity of the ASI-3 and the Dimensional Conceptualization of Trait Anxiety Sensitivity From IRT Modeling

2017 ◽  
Vol 33 (3) ◽  
pp. 181-189 ◽  
Author(s):  
Christoph J. Kemper ◽  
Michael Hock
Keyword(s):  
Construct Validity ◽  
Anxiety Sensitivity ◽  
Latent Class ◽  
Dimensional Structure ◽  
Sensitivity Index ◽  
Response Scale ◽  
Established Risk Factor ◽  
Irt Models ◽  
Level Data ◽  
Extreme Response

Abstract. Anxiety Sensitivity (AS) denotes the tendency to fear anxiety-related sensations. Trait AS is an established risk factor for anxiety pathology. The Anxiety Sensitivity Index-3 (ASI-3) is a widely used measure of AS and its three most robust dimensions with well-established construct validity. At present, the dimensional conceptualization of AS, and thus, the construct validity of the ASI-3 is challenged. A latent class structure with two distinct and qualitatively different forms, an adaptive form (normative AS) and a maladaptive form (AS taxon, predisposing for anxiety pathology) was postulated. Item Response Theory (IRT) models were applied to item-level data of the ASI-3 in an attempt to replicate previous findings in a large nonclinical sample (N = 2,603) and to examine possible interpretations for the latent discontinuity observed. Two latent classes with a pattern of distinct responses to ASI-3 items were found. However, classes were indicative of participant’s differential use of the response scale (midpoint and extreme response style) rather than differing in AS content (adaptive and maladaptive AS forms). A dimensional structure of AS and the construct validity of the ASI-3 was supported.

The Solution Strategy as an Indicator of the Developmental Stage of Preschool Children’s Mental-Rotation Ability

2010 ◽  
Vol 31 (2) ◽  
pp. 95-100 ◽  
Author(s):  
Claudia Quaiser-Pohl ◽  
Anna M. Rohe ◽  
Tobias Amberger
Keyword(s):  
Preschool Children ◽  
Mental Rotation ◽  
Latent Class ◽  
Preschool Age ◽  
Stage Model ◽  
Solution Strategy ◽  
Thinking Aloud ◽  
Transition Analysis ◽  
Solution Strategies ◽  
Close Relationship

The solution strategies of preschool children solving mental-rotation tasks were analyzed in two studies. In the first study n = 111 preschool children had to demonstrate their solution strategy in the Picture Rotation Test (PRT) items by thinking aloud; seven different strategies were identified. In the second study these strategies were confirmed by latent class analysis (LCA) with the PRT data of n = 565 preschool children. In addition, a close relationship was found between the solution strategy and children’s age. Results point to a stage model for the development of mental-rotation ability as measured by the PRT, going from inappropriate strategies like guessing or comparing details, to semiappropriate approaches like choosing the stimulus with the smallest angle discrepancy, to a holistic or analytic strategy. A latent transition analysis (LTA) revealed that the ability to mentally rotate objects can be influenced by training in the preschool age.

Sign in / Sign up

Export Citation Format

Share Document