Search results for "Disruptive"
showing 10 items of 52 documents
Influences of geographic differentiation in the forewing warning signal of the wood tiger moth in Alaska
2014
Aposematic organisms have warning signals advertising their unpalatability to predators, and because signal efficiency is better in higher densities, positive frequency-dependent selection is expected to select against less common signals. The wood tiger moth (Parasemia plantaginis) occurs across the Holarctic and its conspicuous hindwings serve as warning signals to predators. It also has conspicuous black and white forewing patterns that could act as warning signals, or help to hide the moth by preventing predators from seeing the outline of the moth’s body (a strategy known as disruptive coloration). In Alaska, the predominant forewing pattern changes distinctly between the regions aroun…
Co-evolution of three mega-trends nurtures un-captured GDP – Uber's ride-sharing revolution
2016
Uber used a disruptive business model driven by digital technology to trigger a ride-sharing revolution. The institutional sources of the company’s platform ecosystem architecture were analyzed to explain this revolutionary change. Both an empirical analysis of a co-existing development trajectory with taxis and institutional enablers that helped to create Uber’s platform ecosystem were analyzed. The analysis identified a correspondence with the “two-faced” nature of ICT that nurtures un-captured GDP. This two-faced nature of ICT can be attributed to a virtuous cycle of decline in prices and an increase in the number of trips. We show that this cycle can be attributed to a self-propagating …
Efficacy of Guanfacine Extended Release in Children and Adolescents with Attention-Deficit/Hyperactivity Disorder and Comorbid Oppositional Defiant D…
2020
OBJECTIVE To assess the efficacy of the non-stimulant guanfacine extended release (GXR) on attention-deficit/hyperactivity disorder (ADHD) symptoms in children and adolescents, with and without comorbid oppositional defiant disorder (ODD). METHODS Data were derived from 4 phase 3, randomized, placebo-controlled trials of dose-optimized GXR monotherapy, in which at least 10% of participants had a diagnosis of comorbid ODD. SPD503-312 and SPD503-316 were 10- to 13-week studies of GXR (1-7 mg/d). SPD503-314 and SPD503-307 were 8-week studies of GXR (1-4 mg/d). Efficacy was assessed using the ADHD Rating Scale IV (ADHD-RS-IV) total scores. RESULTS In total, 1,084 participants were included (SPD…
Empirically Determined, Psychopathological Subtypes in Children With ADHD
2013
OBJECTIVE: The aim of this study was to empirically determine subgroups of ADHD defined by specific patterns of psychopathology. METHOD: A clinical sample of 223 children with ADHD, aged 5 to 14 years, was examined with the Child Behavior Checklist (CBCL). In addition, comorbid psychiatric disorders, psychosocial risk factors, and socioeconomic status were assessed. RESULTS: Cluster analysis of CBCL subscales yielded a solution with four distinct subgroups. While "externalizers" showed a high rate of comorbid oppositional defiant disorder (ODD) and conduct disorder (CD), "obsessive-compulsives" exhibited thought problems, low rates of comorbid CD, and high symptoms of inattention. "High psy…
Warning coloration can be disruptive: aposematic marginal wing patterning in the wood tiger moth
2015
Warning (aposematic) and cryptic colorations appear to be mutually incompatible because the primary function of the former is to increase detectability, whereas the function of the latter is to decrease it. Disruptive coloration is a type of crypsis in which the color pattern breaks up the outline of the prey, thus hindering its detection. This delusion can work even when the prey’s pattern elements are highly contrasting; thus, it is possible for an animal’s coloration to combine both warning and disruptive functions. The coloration of the wood tiger moth (Parasemia plantaginis) is such that the moth is conspicuous when it rests on vegetation, but when it feigns death and drops to the gras…
Reducing disruptive behaviours and improving learning climates with class-wide positive behaviour support in middle schools
2014
Disruptive behaviours in classrooms pose a significant challenge for learning in schools and are, at the same time, a risk factor for students’ academic achievement and a major source for work-related stress among teachers. Earlier research suggests that clarifying the classroom rules and behavioural expectations, monitoring students’ adherence to them and using behaviour-specific praise are simple and effective practices to reduce disruptive behaviour. Most of the interventions have been developed for elementary schools, although behaviour problems tend to be more common in middle schools. This two-month pilot study using a pre–post design evaluated the effects of a class-wide intervention…
Psychosocial adjustment and quality of life after renal transplantation in early childhood.
2004
Psychosocial adjustment and quality of life has been reported good in children after a successful renal transplantation (Tx). There are, however, few reports of using standardized methods in evaluating these issues, particularly in small children. We investigated the psychosocial adjustment in 32 children at school age (mean 9.6 +/- 1.6), who had received a renal Tx under the age of 5 yr, using the Achenbach Child Behavior Checklist with data collected from both parents (CBCL) and teachers (CBCL-TRF). Health-related quality of life (HRQOL) was assessed by interviewing the children using a 17-dimensional (17D) health-related measure and compared to HRQOL of 244 normal school children. The ef…
The Slow Adoption Rate of Software Robotics in Accounting and Payroll Services and the Role of Resistance to Change in Innovation-Decision Process
2022
Robotic process automation (RPA) has by now for years been viewed as a disruptive innovation that will have a significant impact on accounting, HR and payroll services, and yet the rate of adopting the innovation has not reached a level anticipated in past predictions. As several elements have a negative impact on the organization’s rate of adopting RPA, passive resistance to change has a significant impact in the form of constant dithering. Resistance to change can emerge at any stage of the Innovation-Decision process and fluctuate throughout the continued adoption, causing wasted investments, capabilities and resources. peerReviewed
Social Innovation Lessons from Microangels? An Institutional Entrepreneurship Case Study of the CIGALES Movement in France
2012
One way by which microentrepreneurs can increase their ability to take debt is to take equity alongside, thus respecting prudent ratios and reducing stress. But microequity has not developed in most of the developing world. At the same time, since 1983, microequity has been started in France through a socially innovative movement known as CIGALES. Today, there are over a hundred CIGALES clubs. How have these multiplied and why hasn't the movement grown faster and more global? We look at the development of the CIGALES movement from an Institutional lens. Based on fifteen semi-structured interviews, we trace the creation and expansion of the movement and see internal blockages are as importan…
Are Online Haters Psychopaths? Psychological Predictors of Online Hating Behavior
2020
Despite growing prevalence of derogatory online behaviors, still little is known about psychological factors underlying this negative phenomenon. In the present study, we aimed to compare characteristics of persons who post hating and non-hating comments about Polish sports players during Winter Olympic Games in Pyeongchang (2018) on the Internet. Ninety-four Internet users (41% women) participated in the study, among which 46 posted hating comments. After one month, participants were invited to take part in a psychological survey, and filled the Dark Triad questionnaire, the Satisfaction with Life Scale, the Scale of Frustration, and the Scale of Envy. Results showed that high scores in Ps…