Developmental trajectory and gender differences in Chinese adolescents' physical and relational aggression: an analysis using the latent class growth model

2014 ◽  
Vol 6 (1) ◽  
pp. 44-55 ◽  
Author(s):  
Chunyong Yuan ◽  
Aihui Shao ◽  
Xinyin Chen ◽  
Tao Xin ◽  
Li Wang ◽  
...  
Keyword(s):  
Gender Differences ◽  
Relational Aggression ◽  
Physical Aggression ◽  
Latent Class ◽  
Initial Level ◽  
Interpersonal Relationship ◽  
Developmental Trajectory ◽  
Content Type ◽  
Group A ◽  
Class Play

Purpose – The purpose of this paper is to investigate the developmental trajectory and patterns of physical aggression and relational aggression over time, and also to examine the gender differences of the three-year developmental process as well as the impact of the developmental trajectory on mental health. Design/methodology/approach – Participants: the participants of this study were newly enrolled junior school students. The study spanned three years with continuous tracking performed once every other year. Measures: class play questionnaire. Aggressive behaviors were measured by an adaptive Chinese version of the revised class play assessment. Statistical analysis: to address the questions of the present study, the latent class growth model (LCGM) was used to analyze the three-year longitudinal data by Mplus 6.1. Findings – The initial level of physical aggression in boys was higher than that in girls. There were three types of developmental trajectory for boys, corresponding to a lower initial level-increasing group, a middle initial level-increasing group and a higher initial level-stable group. However, girls demonstrated different patterns, corresponding to a lower initial level-increasing group, a middle initial level-increasing group and a higher initial level-decreasing group. In contrast to the physical aggression, the initial level of relational aggression in boys was lower than that in girls. There were four types of developmental trajectory for boys, corresponding to a lower initial level-increasing group, a middle initial level-increasing group, a middle initial level-declining group and a higher initial level-declining group. Girls illustrated different patterns, corresponding to a lower initial level-stable group, a middle initial level-increasing group and a higher initial level-declining group. Different developmental trajectory of physical and relational aggression would influence the interpersonal relationship. Originality/value – This paper used a person-centered latent variable approach instead of the variable-centered approach to investigate the developmental trajectory and patterns of physical aggression and relational aggression over three year by employing the LCGM. The initial level of physical aggression in boys was higher than that in girls. In contrast, the initial level of relational aggression in boys was lower than that in girls. There were gender differences in the pattern of physical and relational aggression development trajectory. Different developmental trajectory of physical and relational aggression would influence the interpersonal relationship.

GENDER DIFFERENCES IN RELATIONAL AND PHYSICAL AGGRESSION

2007 ◽  
Vol 35 (1) ◽  
pp. 41-50 ◽  
Author(s):  
Leslie A. Burton ◽  
Jessica Hafetz ◽  
Debra Henninger
Keyword(s):  
Gender Differences ◽  
Relational Aggression ◽  
Physical Aggression ◽  
Interpersonal Relationship ◽  
Personality Factors ◽  
Emotional Understanding ◽  
Factor Scores ◽  
Men And Women ◽  
Emotional Quotient Inventory ◽  
Neo Five Factor Inventory

A sample of 134 (93 female, 41 male) university students were evaluated with measures of relational and physical aggression, as well as measures of the five personality factors (NEO Five-Factor Inventory; Costa & McCrae, 1992), depression and anxiety (Beck Depression Inventory; Beck, 1987 and Anxiety Inventory; Beck, 1990), and general emotional understanding and functioning (Bar-On Emotional Quotient Inventory; Bar-On, 1997). Gender differences were found such that the men reported more physical aggression and less Extraversion, with trends for less Neuroticism and less Agreeableness, than the women (NEO-FFI). Additionally, the women had higher Bar-On Interpersonal overall factor scores, including higher scores for the component Empathy, Social Responsibility, and Interpersonal Relationship subscales, than the men. Relational and physical aggression showed different patterns of association with other personality and emotional measures for men and women. In men, higher physical aggression was associated with lower Agreeableness and lower Extraversion. In women, higher physical aggression was associated with higher Conscientiousness, more depression, lower Bar-On EQI Stress Management and higher adaptability. Relational aggression was associated with lower Agreeableness and a lower Bar-On EQI overall score for both men and women. In men, higher relational aggression was additionally associated with more Neuroticism. In women, higher relational aggression was also associated with lower Conscientiousness, and lower Bar-On EQI Interpersonal factor scores.

Associations between multisystem stress reactivity and peer nominated aggression in early childhood vary by sex

2020 ◽  
Vol 32 (5) ◽  
pp. 1888-1898
Author(s):  
Melissa J. Hagan ◽  
Danielle S. Roubinov ◽  
W. Thomas Boyce ◽  
Nicole R. Bush
Keyword(s):  
Early Childhood ◽  
Relational Aggression ◽  
Stress Responses ◽  
Physical Aggression ◽  
Stress Reactivity ◽  
Physiological Stress ◽  
Kindergarten Children ◽  
Peer Ratings ◽  
Cortisol Reactivity ◽  
Physiological Stress Response

AbstractThere is emerging evidence that the development of problematic aggression in childhood may be associated with specific physiological stress response patterns, with both biological overactivation and underactivation implicated. This study tested associations between sex-specific patterns of stress responses across the sympathetic nervous system (SNS) and hypothalamic–pituitary–adrenal (HPA) axis and peer nominations of aggression among 271 kindergarten children (Mean age = 5.32 years; 52% Female; 44% White). Upon entry to kindergarten, children participated in a multidomain standardized stress paradigm. Changes in pre-ejection period (PEP) and salivary cortisol were assessed. On a separate day, children provided peer ratings of physical and relational aggression in a standardized interview. As expected, there was a significant three-way interaction between PEP, cortisol reactivity, and sex, but only for physical aggression. Among boys, cortisol reactivity was positively associated with physical aggression only for those with higher SNS reactivity. Findings suggest that for boys, asymmetrical and symmetrical HPA/SNS reactivity may be associated with lower and higher risk for peer-directed physical aggression, respectively. Understanding the complex associations between multisystem physiology, child sex and peer-directed aggression in early childhood may offer insight into individual differences underlying the emergence of behavioral dysregulation in early peer contexts.

scholarly journals Gender differences in physical aggression: A prospective population-based survey of children before and after 2 years of age.

2007 ◽  
Vol 43 (1) ◽  
pp. 13-26 ◽  
Author(s):  
Raymond H. Baillargeon ◽  
Mark Zoccolillo ◽  
Kate Keenan ◽  
Sylvana Côté ◽  
Daniel Pérusse ◽  
...  
Keyword(s):  
Gender Differences ◽  
Physical Aggression ◽  
Population Based ◽  
Before And After ◽  
Population Based Survey

scholarly journals Natural Disruption of Two Regulatory Networks in Serotype M3 Group A Streptococcus Isolates Contributes to the Virulence Factor Profile of This Hypervirulent Serotype

2014 ◽  
Vol 82 (5) ◽  
pp. 1744-1754 ◽  
Author(s):  
Tram N. Cao ◽  
Zhuyun Liu ◽  
Tran H. Cao ◽  
Kathryn J. Pflughoeft ◽  
Jeanette Treviño ◽  
...  
Keyword(s):  
Virulence Factor ◽  
Regulatory Networks ◽  
Molecular Mechanisms ◽  
Group A Streptococcus ◽  
Regulatory System ◽  
Mrna Levels ◽  
Bacterial Strains ◽  
Content Type ◽  
Small Regulatory Rna ◽  
Group A

ABSTRACTDespite the public health challenges associated with the emergence of new pathogenic bacterial strains and/or serotypes, there is a dearth of information regarding the molecular mechanisms that drive this variation. Here, we began to address the mechanisms behind serotype-specific variation between serotype M1 and M3 strains of the human pathogenStreptococcus pyogenes(the group AStreptococcus[GAS]). Spatially diverse contemporary clinical serotype M3 isolates were discovered to contain identical inactivating mutations within genes encoding two regulatory systems that control the expression of important virulence factors, including the thrombolytic agent streptokinase, the protease inhibitor-binding protein-G-related α2-macroglobulin-binding (GRAB) protein, and the antiphagocytic hyaluronic acid capsule. Subsequent analysis of a larger collection of isolates determined that M3 GAS, since at least the 1920s, has harbored a 4-bp deletion in thefasCgene of thefasBCAXregulatory system and an inactivating polymorphism in therivRregulator-encoding gene. ThefasCandrivRmutations in M3 isolates directly affect the virulence factor profile of M3 GAS, as evident by a reduction in streptokinase expression and an enhancement of GRAB expression. Complementation of thefasCmutation in M3 GAS significantly enhanced levels of the small regulatory RNA FasX, which in turn enhanced streptokinase expression. Complementation of therivRmutation in M3 GAS restored the regulation ofgrabmRNA abundance but did not alter capsule mRNA levels. While important, thefasCandrivRmutations do not provide a full explanation for why serotype M3 strains are associated with unusually severe invasive infections; thus, further investigation is warranted.

“That's not how I see it”: female and male perspectives on the academic role

2007 ◽  
Vol 22 (6) ◽  
pp. 497-515 ◽  
Author(s):  
Sue Shaw ◽  
Catherine Cassell
Keyword(s):  
Gender Differences ◽  
Business School ◽  
Design Methodology ◽  
Business Schools ◽  
School Context ◽  
Empirical Work ◽  
Original Data ◽  
Content Type ◽  
Academic Role ◽  
The Uk

PurposeThe purpose of this paper is to provide a piece of empirical work that examines gender differences in how academics make sense of performance within university business schools in the UK.Design/methodology/approachThe research reported draws on data collected using a life history and repertory grid methodology with male and female interviewees from two university business schools.FindingsThe findings are discussed in relation to how academics understand what is valued about their role and what they believe the organisation rewards and values when it comes to promotion. Gender differences are shown to exist in the ways women and men define the academic role and in what they think is important both to themselves and the institution.Originality/valueThe paper presents original data on gender differences within a business school context.

Perceptions of time at work

2016 ◽  
Vol 45 (1) ◽  
pp. 29-50 ◽  
Author(s):  
Aristides Isidoro Ferreira ◽  
Joana Diniz Esteves
Keyword(s):  
Gender Differences ◽  
Design Methodology ◽  
Internet Use ◽  
The Internet ◽  
Content Type ◽  
Future Studies ◽  
Work Related ◽  
Phone Calls ◽  
Working Day ◽  
The Relationship

Purpose – Activities such as making personal phone calls, surfing on the internet, booking personal appointments or chatting with colleagues may or may not deviate attentions from work. With this in mind, the purpose of this paper is to examine gender differences and motivations behind personal activities employees do at work, as well as individuals’ perception of the time they spend doing these activities. Design/methodology/approach – Data were obtained from 35 individuals (M age=37.06 years; SD=7.80) from a Portuguese information technology company through an ethnographic method including a five-day non-participant direct observation (n=175 observations) and a questionnaire with open-ended questions. Findings – Results revealed that during a five-working-day period of eight hours per day, individuals spent around 58 minutes doing personal activities. During this time, individuals engaged mainly in socializing through conversation, internet use, smoking and taking coffee breaks. Results revealed that employees did not perceive the time they spent on non-work realted activities accurately, as the values of these perceptions were lower than the actual time. Moreover, through HLM, the findings showed that the time spent on conversation and internet use was moderated by the relationship between gender and the leisure vs home-related motivations associated with each personal activity developed at work. Originality/value – This study contributes to the literature on human resource management because it reveals how employees often perceive the time they spend on non-work related activities performed at work inaccurately. This study highlights the importance of including individual motivations when studying gender differences and personal activities performed at work. The current research discusses implications for practitioners and outlines suggestions for future studies.

Beta—tricalcium phosphate as a substitute for autograft in interbody fusion cages in the canine lumbar spine

2002 ◽  
Vol 97 (3) ◽  
pp. 350-354 ◽  
Author(s):  
Takashiro Ohyama ◽  
Yoshichika Kubo ◽  
Hiroo Iwata ◽  
Waro Taki
Keyword(s):  
Lumbar Spine ◽  
Tricalcium Phosphate ◽  
Interbody Fusion ◽  
Donor Site ◽  
Posterolateral Approach ◽  
Content Type ◽  
Spine Model ◽  
Group A ◽  
Group B ◽  
Fine Print

Object. An interbody fusion cage has been introduced for cervical anterior interbody fusion. Autogenetic bone is packed into the cage to increase the rate of union between adjacent vertebral bodies. Thus, donor site—related complications can still occur. In this study a synthetic ceramic, β—tricalcium phosphate (TCP), was examined as a substitute for autograft bone in a canine lumbar spine model. Methods. In 12 dogs L-1 to L-4 vertebrae were exposed via a posterolateral approach, and discectomy and placement of interbody fusion cages were performed at two intervertebral disc spaces. One cage was filled with autograft (Group A) and the other with TCP (Group B). The lumbar spine was excised at 16 weeks postsurgery, and biomechanical, microradiographic, and histological examinations were performed. Both the microradiographic and histological examinations revealed that fusion occurred in five (41.7%) of 12 operations performed in Group A and in six (50%) of 12 operations performed in Group B. The mean percentage of trabecular bone area in the cages was 54.6% in Group A and 53.8% in Group B. There were no significant intergroup differences in functional unit stiffness. Conclusions. Good histological and biomechanical results were obtained for TCP-filled interbody fusion cages. The results were comparable with those obtained using autograft-filled cages, suggesting that there is no need to harvest iliac bone or to use allo- or xenografts to increase the interlocking strength between the cage and vertebral bone to achieve anterior cervical interbody fusion.

scholarly journals SpyAD, a Moonlighting Protein of Group A Streptococcus Contributing to Bacterial Division and Host Cell Adhesion

2014 ◽  
Vol 82 (7) ◽  
pp. 2890-2901 ◽  
Author(s):  
Marilena Gallotta ◽  
Giovanni Gancitano ◽  
Giampiero Pietrocola ◽  
Marirosa Mora ◽  
Alfredo Pezzicoli ◽  
...  
Keyword(s):  
Cell Division ◽  
Mammalian Cells ◽  
Group A Streptococcus ◽  
Host Cells ◽  
Knockout Mutant ◽  
Content Type ◽  
Moonlighting Protein ◽  
Group A

ABSTRACTGroup A streptococcus (GAS) is a human pathogen causing a wide repertoire of mild and severe diseases for which no vaccine is yet available. We recently reported the identification of three protein antigens that in combination conferred wide protection against GAS infection in mice. Here we focused our attention on the characterization of one of these three antigens, Spy0269, a highly conserved, surface-exposed, and immunogenic protein of unknown function. Deletion of thespy0269gene in a GAS M1 isolate resulted in very long bacterial chains, which is indicative of an impaired capacity of the knockout mutant to properly divide. Confocal microscopy and immunoprecipitation experiments demonstrated that the protein was mainly localized at the cell septum and could interactin vitrowith the cell division protein FtsZ, leading us to hypothesize that Spy0269 is a member of the GAS divisome machinery. Predicted structural domains and sequence homologies with known streptococcal adhesins suggested that this antigen could also play a role in mediating GAS interaction with host cells. This hypothesis was confirmed by showing that recombinant Spy0269 could bind to mammalian epithelial cellsin vitroand thatLactococcus lactisexpressing Spy0269 on its cell surface could adhere to mammalian cellsin vitroand to mice nasal mucosain vivo. On the basis of these data, we believe that Spy0269 is involved both in bacterial cell division and in adhesion to host cells and we propose to rename this multifunctional moonlighting protein as SpyAD (StreptococcuspyogenesAdhesion andDivision protein).

Sing Hosanna for the brands: the process of substituting religion with brand

2017 ◽  
Vol 12 (1) ◽  
pp. 33-45 ◽  
Author(s):  
Abhigyan Sarkar ◽  
Juhi Gahlot Sarkar
Keyword(s):  
Interpersonal Relationships ◽  
Consumer Research ◽  
Process Model ◽  
Interpersonal Relationship ◽  
Psychological Processes ◽  
Content Type ◽  
Brand Relationship ◽  
Managerial Implications ◽  
First Time ◽  
Brand Satisfaction

Purpose Extant research shows that individual’s relationship with brand can be structurally similar to both interpersonal love relationship and religious relationship. A stream of consumer research states that individual can love a brand like a person loves another person. Another stream of consumer research postulates that individual can perceive brand equivalent to religion, and even substitute religion with brand. Research is scarce connecting these two different paradigms of brand relationship, given that interpersonal relationship is not necessarily as devotional as religious relationship. The purpose of this paper is to conceptualize the psychological process through which an individual can substitute his/her religion with brand. The basic theoretical premise of this substitution behaviour is the proposition that brand meanings can be perceived as equivalent to religious meanings. Design/methodology/approach This paper has conducted an integrative review of selected extant research related to individual-brand relationships, interpersonal relationships and religiosity. Findings This paper develops a consumer response hierarchy model showing the inter-related psychological processes through which an individual can substitute his/her religion with brand. The model forms the basis for the discussion of theoretical contributions and managerial implications. Originality/value The value of this conceptual paper lies in developing a process model for the first time in the area of consumer-brand relationship domain explaining the stage-wise psychological processes through which individual can move from mere cognitive brand satisfaction towards perceiving brand as substitute of religion.

scholarly journals Understanding preferences of German flower consumers: the desire for sustained beauty

2018 ◽  
Vol 46 (6) ◽  
pp. 560-576
Author(s):  
Meike Rombach ◽  
Nicole Widmar ◽  
Elizabeth Byrd ◽  
Vera Bitsch
Keyword(s):  
Latent Class Analysis ◽  
Latent Class ◽  
Consumer Preferences ◽  
Federal State ◽  
Class Analysis ◽  
Cut Flower ◽  
Cut Flowers ◽  
Content Type ◽  
Relative Preference ◽  
Best Worst Scaling

PurposeThe purpose of this paper is to provide insights for flower retailers, horticultural practitioners and marketing managers into the prioritisation of cut flower attributes by German residents.Design/methodology/approachApplying a best–worst scaling approach, this analysis identified the relative ranking of importance amongst product attributes relevant to German consumers when buying fresh cut flowers. A latent class analysis determined four flower consumer segments for further study. The study builds on a sample of 978 consumers and is consistent with the most recent German census in terms of age, gender, income and federal state.FindingsThe best-worst analysis showed that intrinsic flower attributes, in particular appearance, freshness and scent were found to be more important to German consumers than the extrinsic attributes studied, namely, price, country of origin and a certification indicating fair trade. The latent class analysis determined four consumer segments that desire either budget, luxury or ethical flowers or more information about flowers. For all identified consumer segments, appearance was the attribute of greatest importance. The segments that desired luxury or ethical flowers, as well as the segment that desires more information were interested in appearance, but also had relatively large shares of preferences dedicated to flower freshness guarantees. The preference for freshness guarantees in addition to appearance may be interpreted jointly as a desire for not only beautiful and aesthetically pleasing flowers, but for sustained beauty.Originality/valueInternationally, the study fills a research gap by exploring consumer’s relative preference for cut flower attributes. In contrast to existing studies on consumer preferences for flowers in Germany, the present study builds on a sample that was targeted in terms of age, gender, net household income and federal state to the most recent German census.

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