The new world of work has an enormous impact on the work-life of employees. Retrenchment, early retirement, unemployment and the demand for better performance are the result of massive restructurings, outsourcing, mergers and acquisitions. The old Psychological contract, as well as lifelong employment, is becoming obsolete in a changing world of work. This leads to increased job insecurity in the workplace. There is substantial evidence in the literature that job insecurity is damaging to psychological health. Job insecurity in not only damaging the individual but impacts negatively on the organisation. Job insecurity leads to mistrust, lack of commitment and general dissatisfaction. In the end it will have a definite impact on organisational performance. The empirical objective of this research was to investigate the relationship between job insecurity, psychological well-being and the relationship with future literacy. A cross-sectional design with an availability sample (n =. 459) was used. The sample was subjected to a specific programme of future literacy training (Map Your Life). Questionnaires were completed prior to the training programme. The reliability and construct validity of the measuring instruments acceptable. (Cronbach alpha coefficients adhere to the cut-off point of > 0,70) with the exception of the Dispositional Optimism Questionnaire (Cronbach alpha coefficient of 0,64). Future literacy is an unknown concept and it was necessary to conceptualise the concept. No instrument to measure future literacy existed and it was necessary to compile such an instrument. A questionnaire consisting of 18 items was compiled to measure future literacy. Factor analysis revealed two factors that measured future literacy. Factor One was named Positive Mindset Towards Future Possibilities and Factor Two, Anticipating, Planning and Preparing for Future Changes. The Cronbach alpha for Factor One was 0,76 and 0,8 1 for the second factor. Results indicated statistical signiticant correlations (of a medium effect) between job insecurity, self-efficacy, dispositional optimism and work locus of control. Self-efficacy and dispositional optimism correlated negatively with job insecurity, indicating that job insecurity decreases as self-efficacy and dispositional optimism increases. The results also indicated a significant negative correlation (medium effect) between job insecurity and future literacy. This implies that as job insecurity decreases future literacy increases. The negative correlation between future literacy and job insecurity indicates that candidates who are future literate experience less job insecurity. When candidates with high and low scores on future literacy were compared with one another, candidates who scored low on all the scales of future literacy experienced high levels job insecurity. Candidates who demonstrated high levels of future literacy experienced significantly lower job insecurity. Black employees experienced significantly higher levels of future literacy when compared to White employees. Multiple regression analysis indicated that self-efficacy, dispositional optimism, work locus of control and future literacy predicted job insecurity when controlling for biographical variables. Limitations and recommendations regarding future research, as well as recommendations for the organisation were made. / Thesis (Ph.D. (Industrial Psychology))--North-West University, Vaal Triangle Campus, 2006.

The problem of changing scale in models of a system is relevant in many different fields. In this thesis we investigate the problem in models of biological systems, particularly infectious disease spread and population dynamics. We investigate this problem using the process algebra \emph{Weighted Synchronous Calculus of Communicating Systems} (WSCCS). In WSCCS we can describe the different types of individual in a population and study the population by placing many of these individuals in parallel. We present an algorithm that allows us to rigorously derive mean field equations (MFE) describing the average change in the population. The algorithm takes into account the Markov chain semantics of WSCCS such that as the system being considered becomes larger, the approximation offered by the MFE tends towards the mean of the Markov chain. The traditional approach to developing population level equations of a system involves making assumptions about the behaviour of the entire population. Our approach means that the population level dynamics explained by the MFE are a direct consequence of the behaviour of individuals, which is more readily observed and measured than the behaviour of the population. In this way we develop MFE models of several different systems and compare the equations obtained to the traditional mathematical models of the system.

Ce travail de thèse considère la culture organisationnelle comme une variable dépendante, à la croisée d’influences multiples, susceptible d’être impactée par les changements issus de la mise en œuvre de la loi du 02 janvier 2002 rénovant l’action sociale et médico-sociale. Il ne cherche pas à extraire des lois universelles, mais s’inscrit dans une perspective idiographique et poursuit un double objectif : -1- décrire les transformations de la culture d’un établissement selon le modèle des valeurs concurrentes de Quinn (Quinn et Cameron, 1983 ; Quinn et Rohrbaugh, 1983, Cameron et Quinn, 2006), -2- qualifier et quantifier la mise en œuvre des outils de la loi et leurs impacts sur la perception des agents à leur égard. Nous avons donc suivi un établissement a priori représentatif du secteur durant trois années au cours desquelles les outils ont été élaborés puis mis en œuvre. Considérant que le secteur social et médico-social présentait une culture professionnelle de type modèle de service public (Sainsaulieu, 1985, Francfort et al, 1995), nous postulions que la culture organisationnelle de cet établissement serait orientée vers le soutien lors du premier temps de recueil de données. Nous postulions également qu’elle s’orienterait progressivement vers la règle avec la déclinaison des outils de 2002 davantage représentatifs d’organisations dont la culture est orientée vers la règle. La recherche met en évidence que la culture organisationnelle est composite, que la règle est prégnante dès le premier temps de recueil de données et plus valorisée que la dimension soutien. D’autre part, les cultures professionnelles ainsi que les préférences personnelles sont orientées vers le soutien. Au gré de la mise en œuvre des outils, grâce à des pratiques managériales considérées comme respectant les principes de la justice organisationnelle et favorisant le développement de l’engagement comportemental, on observe une intégration du profil culturel au niveau des préférences personnelles et des cultures professionnelles. / The work of this thesis considers the organizational culture as a dependent variable, crossing multiple influences, possibly impacted by the changing of the law of January 02nd, 2002 renewing the medical and medical-social action. Il does not try to extract universal laws, but joins rather in an idiographic prospect and pursues a double objective: -1- describe the transformation of the culture of an establishment according the model of the competing values of Quinn (Quinn and Cameron, 1983; Quinn and Rohrbaugh, 1983; Cameron and Quinn, 2006), -2- qualify and quantify the implementation of the tools’slaw as well as the perception of the agents in this respect. Whereas the social and medical- social sector presented a professional culture of model type of public utility ( Sainsaulieu , 1985; Francfort and al , 1995). For this prospect, we have observed an institution that we think representative of this sector during three years while the tools laws have been elaborated then implemented. We postulated that the organization culture of this institution would be directed towards human relations during the first collecting data. We postulated also that it will go progressively toward the rules with the implementation of the tool’s law: this one is more representative of organizations that are guide to the rules values. The research proves that organizational culture is mixed, that the rule takes the lead before human relations, as early as the first collecting data. In another way, the professional cultures and the personal preferences are oriented toward human relations. During the implementation of the tool’s law, according managerial practices that respect the principles of organizational justice, and that favor organizational commitment, we observe an integration of the cultural pattern on a level of personal preferences and professional cultures.

Bakgrund: Tarmsjukdomar är en bakomliggande orsak till att patienter ibland måste genomgå en stomioperation, akut eller elektivt. Stomin anläggs i permanent eller temporärt syfte. En stomioperation innebär en livsomställning för patienten, vilket kan medföra både fysiska och psykiska påfrestningar. Kroppsuppfattning och självkänsla hos en patient som genomgår en stomioperation förändras, men med hjälp och stöd från sjuksköterskan kan patienten återfå kontroll och höja känslan av egenvärde. Syfte: Syftet var att beskriva hur patienter upplever den information de får från och interaktionen de upplever med sjuksköterskan i samband med stomioperation. Metod: Kvalitativ litteraturstudie där 10 kvalitativa artiklar kvalitetsgranskats med hjälp av Forsberg och Wengströms (2013) checklista och analyserats utifrån Graneheim och Lundmans (2004) beskrivning. Resultat: Resultatet delades in i två huvudkategorier och åtta underkategorier. Studien påvisar att patienternas upplevelser av information och interaktion i samband med en stomioperation från sjuksköterkan påverkar deras anpassning till stomin och det dagliga livet. Resultatet visar en bristande kompetens hos sjuksköterskor i att informera och att interagera med patienterna. Slutsats: Patienterna upplevde på varierande sätt brister i information från och interaktion med sjuksköterskor i samband med stomioperation. Bristerna påverkade patienternas anpassning till stomin negativt och de kände sig inte redo att ta hand om egenvården hemma. Kommunikation är, enligt Travelbee, det viktigaste verktyget en sjuksköterska kan använda sig av för att etablera en god relation med en patient. / Background: Intestinal diseases may require patients to have a stoma surgery, acute or elective. The ostomy is either for a permanent or a temporary purpose. A stoma surgery is a life changing event for a patient, which can cause physical and psychological stress. Body image and self-esteem of the patient who are going through a stoma surgery changes and with the help and support from the nurse can help the patient to regain control and raise the sense of intrinsic value. Aim: The aim was to describe how patients perceive the information they received from and the interaction they experience with the nurse in conjunction with a stoma surgery. Method: A qualitative literature study, where 10 qualitative articles were quality reviewed with help from Forsberg and Wengströms (2013) checklist and analyzed using Graneheim and Lundmans (2004) description. Results: The result was divided in to two main categories and eight subcategories. The study indicate that patients' experiences of information and interaction in connection with stoma surgery from nurses affect their adaptation to the stoma and daily life. The results show a lack of competence from nurses to inform and to interact with patients. Conclusion: Patients experienced, in varying ways, deficits in information from and interaction with nurses in regard to a stoma surgery. These deficits affected the patients' adaptation to the ostomy negatively and they did not feel ready to perform the self-care at home. Communication is, according to Travelbee, the most important tool a nurse can use to establish a good relationship with a patient.

En premier lieu nous avons défini les caractéristiques d’un dispositif pédagogique nommé : classe-cycle. Nous y avons apporté une analyse qualitative, afin de donner du sens et de comprendre le processus d’innovation. Nous avons constaté que cette invention organisationnelle avait su provoquer le développement professionnel des enseignants. Cette première étape importante mit en évidence la complexité et l’implication de la notion de temps dans le processus qui conduit du concept nouveau vers l’innovation. Au-delà de la forte demande sociale influençant le désir ou la nécessité d’être innovant, nous remarquons que le processus engendré possède des éléments essentiels à notre culture, notre capacité d’apprentissage, notre capacité d’adaptation. Puisqu’être en capacité d’inventer fait partie intégrante du processus d’apprentissage : Serions-nous capables, d’apprendre à mobiliser des attitudes susceptibles de mettre en route ce processus perpétuel d’apprentissage, nous laissant curieux et désireux d’améliorer notre pratique professionnelle ? Ce qui nous intéresse particulièrement ce sont les attitudes qui dans l’exercice de sa profession, un enseignant ou un formateur, lui permettent de mettre en place des moments inventifs. Par conséquent, l’activation de ces processus lui autorisera la conception de solutions adaptées aux problèmes qu’il rencontre dans un contexte donné. Nous recherchons à relever un ensemble d’attitudes significatives qui engendreraient ces moments novateurs. Notre question de recherche est : Quelles sont les attitudes caractéristiques des enseignants et/ou formateurs qui favorisent la mise en place d’inventions révélatrices d’un professionnel dit ingenium ? / An exploratory study allowed us to define the characteristics of an educational device named by their teacher: Classe-cycle. We made a qualitative analysis of empirical data we have collected, so as to give meaning and some understanding of the innovation process. We have find out that one organizational invention of this type had been able to lead the professional development of teachers. This important first step allowed to reveal the complexity and the involvement of notion of time in the process of concept new towards the concept of innovation. Beyond the high social demand which influencing the desire or the need to be innovative, we note that the process generates the essential to our culture, our evolution, our ability to learn, our ability to adapt. Given that invention is part of the learning process can we believe that entering into this recursive loop, would be a possibility of creating his own professional capacity throughout his life? Would we be able to learn mobilize attitudes likely to initiate this process of perpetual learning, leaving us curious and eager to improve our professional practice? What interests us particularly it's the attitudes which in the exercise of his profession, a teacher or a trainer, allow it to develop creative moments. Therefore, activation of these processes will allow him to design solutions to problems encountered in a given context. Ultimately, we seek to find a significant set of attitudes that would generate innovatives' moments. Our research question is defined as: What are the characteristic attitudes of teachers or trainers that promote the development of inventions revealing the professional known as ingenium?

Problem: A changing economy bears many implications; precarity within employment, the restructuring of concepts, management of activities and the employment of tools reinforcing security. As a measure to procure and preserve employment in the modern market self- branding has been proposed. The value a brand has today is multifaceted and has proven to aid not only businesses and corporations but individuals as well. However, as self-branding is contingent on the precariousness of the changing economy, previous literature has focused on strategies and implications for the self-employed and failed to mention ramifications for the ‘traditionally employed.’ Furthermore, previous literature is lacking with regard to the Swedish employment market and the incorporation of potential cultural influences. Purpose: The scope of this research is two-fold, of both an explanatory and exploratory nature. This research seeks to explain, understand and investigate the Swedish employment market with regard to self-branding and identify possible influences. As well as, uncover new insights and explore the significance of self-branding for Sweden's ‘traditionally employed.’ Method: This research adopted a qualitative approach, conducted 10 semi-structured interviews and implemented a thematic analysis to interpret the empirical findings and answer the research questions. The findings were later analysed in accordance with previous literature. Results: The results identify to major concepts of significance with regards to the strategy of self-branding. Swedes must consider their purpose and authenticity as two major determinants of the value of their brand. Moreover, the results indicate offline branding activities, the Law of Jante and self-branding for the ‘traditionally employed’ of high relevance for the Swedish employment market.

Made available in DSpace on 2016-04-04T18:29:56Z (GMT). No. of bitstreams: 1 Lilian Pereira de Medeiros Guimaraes.pdf: 1363786 bytes, checksum: 76849c2341f4850b56c6f2af431abfe5 (MD5) Previous issue date: 2012-02-28 / In spite of fairly practiced, the Children Psychotherapy depends on some very reduced volume of empirical researchers for its valuation about its efficiency. The available studies encompass a variety of topics that among them include: the aspects of therapeutic link, planning of Psychotherapy, criteria of indication, the parents roles, conception and applicability of Psychotherapy, instruments of children valuation, alternative therapies, and so on. The researchers of therapeutic processes are even rarer and restricted about some cases of studying, not always systematized. This work tried make a survey always together with Brazilian children psychotherapists of several theoretical approaches, about the criteria that consider important to check progress, as much in the session as in external ambient in accordance with the family s or school s report. The therapists were contacted by e-mail or they had access to the research in the site of them respective regional council of Psychology and answered to a questionnaire with items composed with positive changing criteria present in the Literature. The sample was composed by 154 therapists that attend to children, 89% of them are girls, with bigger concentration of psychotherapists in Southeast and South regions (42% and 39%) and with an average of 11 years of experience in Children Psychotherapy. About theoretical approach, the most part were psychoanalysts (50%), followed by psychodynamics (27%), behavior cognitivists (19%), humanistic (12%) and 5% of others approaches (transitional, junguiana, psychodrama and systemic analysis). The criteria of changing in the sessions considered outstanding for the most part of the sample were: 3) It demonstrates through games and jokes, their conflicts (78%); 5) It gives demonstrations of confidence with the therapists (74%); 2) It treats about their fear (67%); 10) It establishes an emotional communication with the therapist (67%).In external situations of the sessions ( in accordance to the parents or school s report), criteria were considered very important for the most part of the sample: 1) It presents improvement in the relationships with relatives ( parents, brothers, grandparents)-85%; 3) It presents improvement in the relationships with classmates and teachers (78%); It demonstrates interest in new activities (ex. games, sports, music and others) (62%); 11) It admits their mistakes (60%). The Analysis of Multiple Correlations, including the criteria of changing in session of Children Psychotherapies and the theoretical lapproaches of the participant, suggested that, in spite of the theoretical differences, all the approaches give some value to the session: the jokes, the autonomy, the tolerance, the frustration always in a confidence climate, that is established through an emotional communication with the therapist. And out of the session in accordance to the parents or school s report the items considered more important were those that considered a better child expression getting to be interested in other activities and an improvement in the relationship with other people, that they live with, and mainly with their families. These common criteria take us to the complete approach in Psychotherapy, principally the beginning of the common factors. In spite of the differences among the theoretical approaches, the psychotherapists seem to support on the same criteria to interpret the changing in Children Psychotherapy. / Apesar de largamente praticadas, as psicoterapias de crian?as contam com um volume bastante reduzido de pesquisas emp?ricas para a avalia??o de sua efici?ncia. Os estudos dispon?veis abarcam uma variedade de temas entre os quais incluem: aspectos do v?nculo terap?utico, planejamento da psicoterapia, crit?rios de indica??o, papel dos pais, concep??o e aplicabilidade da psicoterapia, instrumentos de avalia??o infantil, terapias alternativas, entre outros. Quanto ?s pesquisas de processos terap?uticos s?o ainda mais raras e restritas a alguns estudos de casos, nem sempre sistematizados. Este trabalho procurou fazer um levantamento junto a psicoterapeutas de crian?as brasileiros, de v?rias abordagens te?ricas, sobre os crit?rios que consideram relevantes para aferir progresso, tanto dentro da sess?o como no ambiente externo segundo o relato da fam?lia ou da escola. Os terapeutas foram contatados via e-mail ou tiveram acesso ? pesquisa no site de seus respectivos conselhos regionais de psicologia e responderam a um question?rio com itens compostos por crit?rios de mudan?a positiva, presentes na literatura. A amostra foi composta por 154 terapeutas que fazem atendimento psicoter?pico de crian?as, destes 89 % s?o do sexo feminino, com maior concentra??o de psicoterapeutas na regi?o sudeste e sul (42% e 39%) e com uma m?dia de 11 anos de experi?ncia em psicoterapia infantil. Quanto ? abordagem te?rica, a maioria era de psicanalistas (50%), seguidos de psicodin?micos (27%), Comportamental-cognitivistas (19%), Humanista (12%) e 5,% de outras abordagens (an?lise transacional, junguiana, psicodrama e sist?mica). Os crit?rios de mudan?a nas sess?es, considerados muito relevantes pela maior parte da amostra foram: 3- Demonstra, por meio de jogos e brincadeiras, seus conflitos (78%); 5- D? demonstra??es de confian?a no terapeuta (74%); 2- Fala sobre seus medos (67%); 10- Estabelece uma comunica??o afetiva com o terapeuta (67%). Em situa??es externas ?s sess?es (conforme relato dos pais/ou escola), foram considerados crit?rios muito relevantes pela maioria da amostra: 1- Apresenta melhora nos relacionamentos com familiares (pais, irm?os, av?s) (85%); 3 - Apresenta melhora nos relacionamentos com colegas de classe e professores (78%); Demonstra interesse em novas atividades (ex. jogos, esportes, m?sica, dentre outros) (62% ); 11- Admite seus erros (60%).A An?lise de Correspond?ncias M?ltiplas (ACM), envolvendo os crit?rios de mudan?a na sess?o de psicoterapias de crian?a e a abordagem te?rica do participante, sugeriu que, apesar das diferen?as te?ricas as abordagens valorizam na sess?o: a express?o l?dica, a autonomia, a toler?ncia ? frusta??o sempre em um clima de confian?a que ? estabelecida atrav?s de uma comunica??o afetiva com o terapeuta. E fora da sess?o de acordo com relato dos pais ou da escola os itens considerados de maior relev?ncia foram aqueles que contemplaram uma melhor express?o da crian?a, conseguindo se interessar por outras atividades e uma melhora no relacionamento com as pessoas de seu conv?vio e principalmente com sua fam?lia. Estes crit?rios comuns nos remetem ? abordagem integrativa em psicoterapia, principalmente a vertente dos fatores comuns. Isto ?, apesar das diferen?as entre as abordagens te?ricas, os psicoterapeutas parecem se apoiar em crit?rios semelhantes para interpretarem a mudan?a em psicoterapias infantis.

Observamos neste trabalho o processo de mudança de estrutura fina em colisões entre átomos de 85Rb resfriados e aprisionados em uma armadilha magneto-óptica. Medimos, através da fotoionização de fragmentos atômicos gerados nessas colisões, as taxas segundo as quais os átomos deixam a armadilha induzidos por esse processo colisional. Realizamos estudos das taxas de perda com relação a intensidade do laser de aprisionamento e com a freqüência, utilizando para isso a técnica de catálise. Nossos resultados indicam que a contribuição do processo de mudança de estrutura fina para a taxa de perdas total não é dominante. Constatamos que a estrutura hiperfina desempenha um papel importante na dinâmica colisional e na determinação dos valores das taxas. Interpretamos nossos resultados através de um modelo semi-clássico, sendo que este foi incapaz de explicar todos os efeitos observados. Propusemos algumas explicações qualitativas para as discrepâncias observadas. Acreditamos que nossos resultados devam servir de estímulo para novos trabalhos teóricos nesta área. / We report the observation of trap-loss collisional rates due to fine structure changing collisions between cold and trapped 85Rb atoms. We have measured, by photoionization of the atomic fragments in 5P1/2 state originated in these collisions, the rates through the atoms leave the trap induced by this loss mechanism. We carried out experiments to determine the rate dependence with the intensity of the trapping laser, and with the frequency, using the catalisys technique. We also measured the contribution of this process to the total trap-loss rate and determined that fine structure changing is not the dominant loss mechanism. It was also observed that the hyperfine structure plays an important role in the rate behavior. We compared our results with those given by a semiclassical theoretical approach, the Gallagher-Pritchard model, and some disagreements were observed. We proposed some arguments to explain these discrepancies. We believe that such results should stimulate theoretical work on this field.

The impressive progress that elementary particle physics made in the second half of the last century led to the formulation of a comprehensive theory, known as the Standard Model (SM), which correctly describes all fundamental interactions in nature, except for the gravitational one. Indirect discoveries have always played an important role in high energy physics scenario and indirect research can be considered to all intents and purposes complementary to the direct one, since allows to test much higher energy scales than those the current colliders are able to reach. This is very important now that electroweak precision tests and measurements on Flavour Changing Neutral Currents (FCNC) processes put very stringent constraints on physics beyond the SM, requiring it to appear at scales O(10 TeV). On the other hand, New Physics (NP) is expected already at scales O(1 TeV) in order to offer a natural explanation to the smallness of the Higgs mass. This scale is also confirmed by recent constraints on thermal dark matter [1] which show how new physics should manifest not far above the electroweak scale. Rare B decays have always played a crucial role in shaping the flavour structure of the SM and particle physics in general. Since the first measurement of rare radiative B æ Kú“ decays by the CLEO Collaboration [2] this area of particle physics has received much experimental and theoretical attention. In particular, FCNC B decays, involving the b-quark transition b æ (s, d) + “ and b æ (s, d) + ¸+¸≠(¸ = e, μ, ·, ‹), provided crucial tests for the SM at the quantum level since they proceed through loop or box diagrams, and they are highly suppressed in the SM (also by helicity). Hence, these rare B decays are characterised by their high sensitivity to NP. The B0 s æ μ+μ≠ channel is the most direct example of the b æ s ¸¸ transitions. The SM predicted branching ratio [3] can be enhanced by coupling to non-SM heavy particles, such as those predicted by the Minimal Supersymmetric Standard Model (MSSM) and other extensions. Updated measurements on the B0 s æ μ+μ≠ branching ratio have been presented by ATLAS [4], LHCb [5] and CMS [6] collaborations. In this thesis I will report all the studies I performed within the rare B decays ATLAS group, measuring the branching ratio of the B0 s æ μ+μ≠ channel on data collected during LHC Run 1. The first chapter provides a general introduction to the SM, focusing in particular on the flavour sector and the possible new physics scenarios. Chapter 2 briefly introduces the LHC collider and the ATLAS detector, detailing the muon and trigger systems, fundamental for the rare B decays measurements. In chapters 3 and 4, I will summarise the work done, during my presence at CERN, on the ATLAS semiconductor strip detector, monitoring the Lorentz angle during Run 1 and measuring the backplane resistance of the silicon modules installed in the ATLAS cavern. In chapter 5, I will review the strategy adopted to measure the B0 s æ μ+μ≠ branching ratio, reporting all the studies I performed on the combinatorial background, and the results obtained on 4.9 fb≠1 of data collected in 2011. Chapters 6 and 7 detail respectively the additional studies I performed on the 2011 datasets and all the tests I made in preparation for the analysis on 20 fb≠1 of data collected in 2012. I will show the studies on the discriminating variables for the rejection of the background, the tests on the multivariate analysis and on the possible strategies for the invariant mass fit for the extraction of the signal yield. All these studies proved to be fundamental for the 2012 measurement detailed in chapter 8.

A functional and effective alarm signal is a critical component of alarm systems designed to alert workers of impending danger. In a previous study (Hansson, 2017) background alarm sirens composed of changing-state sounds with an embedded temporal deviant, produced greater disruption of serial short-term memory than a signal without a deviant. However, to give rise to disruption the siren needed to change from fast to slow, since a change from slow to fast was impotent in its effect on task performance. In the current study, whether acoustic change was a necessary prerequisite for obtaining the fast-to-slow deviant effect was explored. Thus, repeated tones—steady-state sequences—presented at slow or fast rates were used with or without a temporal deviant (change from slow-to-fast vs. change from fast-to-slow). In the context of the steady-state sequences, both slow-to-fast and fast-to-slow temporal deviants produced disruption relative to the fast and slow control sequences. This suggests that a changing-state sequence is required for the fast-to-slow temporal deviant effect to arise. However, an alternative explanation based upon inter-stimulus intervals is also entertained. Understanding the acoustic parameters of sound is necessary to develop alarms sirens that are better at capturing attention. The current study suggests that embedding temporal deviants within sirens can promote greater attentional capture, but that this may depend on the nature of the alarm signal (whether it is changing vs. steady-state) and the direction of the change of speed (slow-to-fast vs. fast-to-slow).