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Auswahl der wissenschaftlichen Literatur zum Thema „Unanticipated Adaptation, Role, Consistency“
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Zeitschriftenartikel zum Thema "Unanticipated Adaptation, Role, Consistency"
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Fellmann, Isabel Espinar, María José Carrasco Galán, Isabel Muñoz San Roque und Inés Carrasco Galán. „Spanish Adaptation of the Stepparent Role Strain Index“. Spanish Journal of Psychology 11, Nr. 1 (Mai 2008): 314–22. http://dx.doi.org/10.1017/s1138741600004352.
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Stepparent role strain refers to the fragile position of these family members in stepfamilies due to the lack of clear social expectations about their roles. This ambiguity facilitates family conflict and a lack of stepparents' integration into the family system. The aim of this paper is to adapt a pioneer measure of stepparent role strain—the Stepparent Role Strain Index of Whitsett and Land (1992)—in a Spanish sample and to analyze its construct validity. The final instrument is made up of 26 items which have good internal consistency (α = .89) and an underlying six-factor structure, explaining 64.50% of the total variance.
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SAMEROFF, ARNOLD J. „Developmental systems and psychopathology“. Development and Psychopathology 12, Nr. 3 (September 2000): 297–312. http://dx.doi.org/10.1017/s0954579400003035.
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Efforts to understand the etiology of adult mental disorders by studying children has produced unanticipated changes in our understanding of pathology, individual development, and the role of social context. Among these are the blurring of the division between mental illness and mental health, the need to attend to patterns of adaptation rather than personality traits, and the powerful influences of the social world on individual development. Current developmental views place deviancy in the dynamic relation between individuals and their contexts. At another level, when we view the history of developmental psychopathology, dialectical developmental processes are evident as we trace how patterns of adaptation of researchers, expressed in theoretical models and empirical paradigms, increasingly have come to match the complexities of human mental health and illness.
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Moriguchi, Cristiane Shinohara, Michele Elisabete Rubio Alem, Marc van Veldhoven und Helenice Jane Cote Gil Coury. „Cultural adaptation and psychometric properties of Brazilian Need for Recovery Scale“. Revista de Saúde Pública 44, Nr. 1 (Februar 2010): 131–39. http://dx.doi.org/10.1590/s0034-89102010000100014.
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OBJECTIVE: To translate the Need for Recovery Scale (NFR) into Brazilian Portuguese and culturally adapt it and assess the stability, internal consistency and convergent validity of the Brazilian scale among industrial workers. METHODS: The translation process followed the guidelines for cultural adaptation of questionnaires including the steps of translation, synthesis, back translation, expert committee review, and pre-testing. The Brazilian Portuguese NFR, final version (Br-NFR) was assessed for stability (n=52) and internal consistency (n=192) and for convergent validity through simultaneous assessment with other instruments: the Borg Scale (n=59); the Chalder Fatigue Questionnaire (n=57) and 3 subscales of the SF-36 (n=56). RESULTS: Stability and internal consistency met the criterion for a reliable measure (ICC=0.80 and Cronbach's alpha =0.87, respectively). The convergent validity between Br-NFR and other instruments also showed good results: Borg Scale (r= 0.64); Chalder Questionnaire (r= 0.67); SF-36 subscales: vitality (r= -0.84), physical functioning (r= -0.54), and role-physical (r= -0.47). CONCLUSIONS: The Br-NFR proved to be a reliable instrument to evaluate work-related fatigue symptoms in industrial workers. Furthermore, it showed significant and good correlations with well-established instruments such as the Borg Scale, the Chalder Questionnaire and SF-36 vitality subscale, supporting the validity of the Br-NFR.
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Rasmussen, Tyler P., Yuejin Wu, Mei-ling A. Joiner, Olha M. Koval, Nicholas R. Wilson, Elizabeth D. Luczak, Qinchuan Wang et al. „Inhibition of MCU forces extramitochondrial adaptations governing physiological and pathological stress responses in heart“. Proceedings of the National Academy of Sciences 112, Nr. 29 (07.07.2015): 9129–34. http://dx.doi.org/10.1073/pnas.1504705112.
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Myocardial mitochondrial Ca2+ entry enables physiological stress responses but in excess promotes injury and death. However, tissue-specific in vivo systems for testing the role of mitochondrial Ca2+ are lacking. We developed a mouse model with myocardial delimited transgenic expression of a dominant negative (DN) form of the mitochondrial Ca2+ uniporter (MCU). DN-MCU mice lack MCU-mediated mitochondrial Ca2+ entry in myocardium, but, surprisingly, isolated perfused hearts exhibited higher O2 consumption rates (OCR) and impaired pacing induced mechanical performance compared with wild-type (WT) littermate controls. In contrast, OCR in DN-MCU–permeabilized myocardial fibers or isolated mitochondria in low Ca2+ were not increased compared with WT, suggesting that DN-MCU expression increased OCR by enhanced energetic demands related to extramitochondrial Ca2+ homeostasis. Consistent with this, we found that DN-MCU ventricular cardiomyocytes exhibited elevated cytoplasmic [Ca2+] that was partially reversed by ATP dialysis, suggesting that metabolic defects arising from loss of MCU function impaired physiological intracellular Ca2+ homeostasis. Mitochondrial Ca2+ overload is thought to dissipate the inner mitochondrial membrane potential (ΔΨm) and enhance formation of reactive oxygen species (ROS) as a consequence of ischemia-reperfusion injury. Our data show that DN-MCU hearts had preserved ΔΨm and reduced ROS during ischemia reperfusion but were not protected from myocardial death compared with WT. Taken together, our findings show that chronic myocardial MCU inhibition leads to previously unanticipated compensatory changes that affect cytoplasmic Ca2+ homeostasis, reprogram transcription, increase OCR, reduce performance, and prevent anticipated therapeutic responses to ischemia-reperfusion injury.
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Konduk, Burak Cem. „The role of performance feedback consistency in aspiration level adaptation: Evidence from a European grocery retailer“. Journal of General Management 45, Nr. 1 (06.09.2019): 18–29. http://dx.doi.org/10.1177/0306307019849764.
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This study investigates whether and how the impact of drivers of aspiration levels changes across the cases of consistent and inconsistent performance feedback within the context of a retailer. Analysis of internal corporate data shows that while past aspiration level and performance–aspiration gap positively influence the current aspiration level in the case of inconsistent feedback, performance feedback consistency changes only the impact of performance relative to peers. This study replicates past research in a different industry and country due to limited empirical evidence, introduces real-world complexity into aspiration theory, pinpoints performance–aspiration gap as the primary performance feedback, introduces a new sign for the impact of performance relative to peers, and reconciles its previously detected mixed impact. The findings suggest that organizational attention has an inward focus in the case of inconsistent feedback. The results also point out that leaders can trigger change through a performance outcome that lags behind the corresponding aspiration level rather than the performance of peers and eventually move their organizations toward high performance targets by starting with feasible rather than stretch goals.
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Cantor-Cutiva, Lady Catherine, María Celina Malebrán Bezerra de Mello und Eric J. Hunter. „Translation and adaptation of the Vocal Fatigue Index into Spanish“. Revista de Investigación e Innovación en Ciencias de la Salud 2, Nr. 2 (28.12.2020): 4–13. http://dx.doi.org/10.46634/riics.29.
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Aim: the purpose of this study was to translate and adapt the English version of the Vocal Fatigue Index (VFI) into the Spanish language. Methods: the English version of the Vocal Fatigue Index (VFI) was translated into Spanish by two bilingual speech-language pathologists, and then was back-translated into English. The Spanish VFI (o “Índice de Fatiga Vocal”, IFV) was administrated to a pilot group of 10 individuals, which revealed some small typographical and grammatical adjustments to the index. The final updated version was then administrated to 34 subjects (21 with voice disorders, and 13 without voice disorders). Internal consistency and scale reliability were analyzed using Cronbach alpha coefficient. Results: a high Cronbach alpha coefficient for the three factors (0.87) was obtained. The results of the item role in reliability of the Spanish VFI demonstrated that all of them showed a positive role according to this criterion. The results of the ANOVA indicate a statistically significant difference between groups on the three scores of the Spanish translation of the VFI. In comparison to the healthy participants, those with voice disorders obtained statistically significant higher scores for the Spanish VFI subscales. Conclusion: the present study suggests that the Spanish translation of the Vocal Fatigue Index has a good internal consistency and high reliability on each of the three factors. The results suggest that the Spanish VFI can be used reliably to identify persons with vocal fatigue and has good clinical validity.
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Bey, Katharina, Julia V. Lippold, Behrem Aslan, René Hurlemann und Ulrich Ettinger. „Effects of lorazepam on prosaccades and saccadic adaptation“. Journal of Psychopharmacology 35, Nr. 1 (04.12.2020): 91–99. http://dx.doi.org/10.1177/0269881120972424.
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Background: Benzodiazepines have reliable adverse effects on saccadic eye movements, but the impact of sex as a potential modulator of these effects is less clear. A recent study reported stronger adverse effects on the spatial consistency of saccades in females, which may reflect sex differences in cerebellar mechanisms. Aims: We aimed to further examine the role of sex as a potential modulator of benzodiazepine effects by employing the saccadic adaptation paradigm, which is known to be sensitive to cerebellar functioning. Methods: A total of n=50 healthy adults performed a horizontal step prosaccade task and a saccadic adaptation task under 0.5 mg lorazepam, 1 mg lorazepam and placebo in a double-blind, within-subjects design. Results: In the prosaccade task, lorazepam had adverse effects on measures of peak velocity, latency and spatial consistency. The administration of 0.5 mg lorazepam led to significant reductions in gain-decrease adaptation, while a dose of 1 mg did not impair adaptation learning. Gain-increase adaptation was generally less pronounced, and unaffected by the drug. There were no significant drug×sex interactions in either task. Conclusions: We conclude that a low dose of lorazepam impairs gain-decrease adaptation independent of sex. At higher doses, however, increasing fatigue may facilitate adaptation and thus counteract the adverse effects observed at lower doses. With regards to prosaccades, our findings confirm peak velocity as well as latency and spatial measures as sensitive biomarkers of GABAergic effects.
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Jaeschke, Anna-Marie C., Michael L. Sachs und Kristen D. Dieffenbach. „Ultramarathon Runners’ Perceptions of Mental Toughness: A Qualitative Inquiry“. Sport Psychologist 30, Nr. 3 (September 2016): 242–55. http://dx.doi.org/10.1123/tsp.2014-0153.
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Ultramarathon running entails coping with unanticipated environmental circumstances and intense physical and psychological fatigue; a sport in which the role of mental toughness can be crucial. This research focused on semistructured interviews with 12 ultramarathon runners who volunteered to discuss their perceptions of mental toughness. The data allowed researchers to gather a multidimensional view of mental toughness from ultramarathon runners’ experiences and perspective in addition to providing a snapshot of the challenges and demands ultrarunners face, as well as ethical concerns associated with athletes pushing themselves beyond their limits. Central themes included: perseverance/persistence, overcoming adversity, perspective, life experience, psychological skills use, and camaraderie in the ultra community. A deeper understanding of mental toughness obtained from a sample of ultramarathon runners can inform consultants working to improve quality or consistency of performance, and become aware of ethical concerns of encouraging athletes to exceed perceptual or actual limitations.
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Ward, Mary J., Brian E. Vaughn und Martha D. Robb. „Social-Emotional Adaptation and Infant-Mother Attachment in Siblings: Role of the Mother in Cross-Sibling Consistency“. Child Development 59, Nr. 3 (Juni 1988): 643. http://dx.doi.org/10.2307/1130564.
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Ko, Kenton, Kelvin Chan, Katherine Karakasis und Babak Pedram. „Plastid protein delivery: coping with diversityThis review is one of a selection of papers published in the Special Issue on Plant Cell Biology.“ Canadian Journal of Botany 84, Nr. 4 (April 2006): 543–50. http://dx.doi.org/10.1139/b06-040.
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Plastids play a central role in a variety of biosynthetic activities such as photosynthesis, amino acid synthesis, and oil production. Many of these activities depend on the compartment’s ability to adapt appropriately to the ever-changing environment of a plant cell. The pressure to adapt can arise from both internal and external sources. The complex nature of these adaptation activities is likely to be mirrored in the diversity of proteins being transported in a given situation. This diversity can be manifested at all molecular levels of the proteins, from different transit signal-bearing preproteins to different structural versions of the same preprotein. Unanticipated changes can also arise spontaneously upon exposing the population of translocating proteins to environmental stress, for example heat or cold. It is therefore important for plastids to maintain a responsive and efficient protein transport process to accommodate all situations, immediately or for the longer-term. By drawing on existing evidence, this review explores specific structural features or schemes for adapting the plastid protein delivery process and speculates on other adaptation possibilities for future consideration.
Dissertationen zum Thema "Unanticipated Adaptation, Role, Consistency"
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Taing, Nguonly, Markus Wutzler, Thomas Springer, Nicolás Cardozo und Alexander Schill. „Consistent Unanticipated Adaptation for Context-Dependent Applications“. ACM, 2016. https://tud.qucosa.de/id/qucosa%3A75211.
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Unanticipated adaptation allows context-dependent applications to overcome the limitation of foreseen adaptation by incorporating previously unknown behavior. Introducing this concept in language-based approaches leads to inconsistencies as an object can have different views in different contexts. Existing language-based approaches do not address unanticipated adaptation and its associated run-time inconsistencies. We propose an architecture for unanticipated adaptation at run time based on dynamic instance binding crafted in a loosely manner to asynchronously replace adaptable entities that allow for behavioral changes of objects. To solve inconsistencies, we introduce the notion of transactions at the object level. Transactions guard the changing objects during their execution, ensuring consistent views. This allows for disruption-free, safe updates of adaptable entities by means of consistent unanticipated adaptation.
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Taing, Nguonly. „Run-time Variability with Roles“. Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-234933.
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Adaptability is an intrinsic property of software systems that require adaptation to cope with dynamically changing environments. Achieving adaptability is challenging. Variability is a key solution as it enables a software system to change its behavior which corresponds to a specific need. The abstraction of variability is to manage variants, which are dynamic parts to be composed to the base system. Run-time variability realizes these variant compositions dynamically at run time to enable adaptation. Adaptation, relying on variants specified at build time, is called anticipated adaptation, which allows the system behavior to change with respect to a set of predefined execution environments. This implies the inability to solve practical problems in which the execution environment is not completely fixed and often unknown until run time. Enabling unanticipated adaptation, which allows variants to be dynamically added at run time, alleviates this inability, but it holds several implications yielding system instability such as inconsistency and run-time failures. Adaptation should be performed only when a system reaches a consistent state to avoid inconsistency. Inconsistency is an effect of adaptation happening when the system changes the state and behavior while a series of methods is still invoking. A software bug is another source of system instability. It often appears in a variant composition and is brought to the system during adaptation. The problem is even more critical for unanticipated adaptation as the system has no prior knowledge of the new variants.
This dissertation aims to achieve anticipated and unanticipated adaptation. In achieving adaptation, the issues of inconsistency and software failures, which may happen as a consequence of run-time adaptation, are evidently addressed as well. Roles encapsulate dynamic behavior used to adapt players representing the base system, which is the rationale to select roles as the software system's variants. Based on the role concept, this dissertation presents three mechanisms to comprehensively address adaptation. First, a dynamic instance binding mechanism is proposed to loosely bind players and roles. Dynamic binding of roles enables anticipated and unanticipated adaptation. Second, an object-level tranquility mechanism is proposed to avoid inconsistency by allowing a player object to adapt only when its consistent state is reached. Last, a rollback recovery mechanism is proposed as a proactive mechanism to embrace and handle failures resulting from a defective composition of variants. A checkpoint of a system configuration is created before adaptation. If a specialized bug sensor detects a failure, the system rolls back to the most recent checkpoint. These mechanisms are integrated into a role-based runtime, called LyRT.
LyRT was validated with three case studies to demonstrate the practical feasibility. This validation showed that LyRT is more advanced than the existing variability approaches with respect to adaptation due to its consistency control and failure handling. Besides, several benchmarks were set up to quantify the overhead of LyRT concerning the execution time of adaptation. The results revealed that the overhead introduced to achieve anticipated and unanticipated adaptation to be small enough for practical use in adaptive software systems. Thus, LyRT is suitable for adaptive software systems that frequently require the adaptation of large sets of objects.
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Taing, Nguonly, Thomas Springer, Nicolás Cardozo und Alexander Schill. „A Rollback Mechanism to Recover from Software Failures in Role-based Adaptive Software Systems“. ACM, 2017. https://tud.qucosa.de/id/qucosa%3A75214.
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Context-dependent applications are relatively complex due to their multiple variations caused by context activation, especially in the presence of unanticipated adaptation. Testing these systems is challenging, as it is hard to reproduce the same execution environments. Therefore, a software failure caused by bugs is no exception. This paper presents a rollback mechanism to recover from software failures as part of a role-based runtime with support for unanticipated adaptation. The mechanism performs checkpoints before each adaptation and employs specialized sensors to detect bugs resulting from recent configuration changes. When the runtime detects a bug, it assumes that the bug belongs to the latest configuration. The runtime rolls back to the recent checkpoint to recover and subsequently notifes the developer to fix the bug and re-applying the adaptation through unanticipated adaptation. We prototype the concept as part of our role-based runtime engine LyRT and demonstrate the applicability of the rollback recovery mechanism for unanticipated adaptation in erroneous situations.
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Taing, Nguonly. „Run-time Variability with Roles“. Doctoral thesis, 2017. https://tud.qucosa.de/id/qucosa%3A30936.
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Adaptability is an intrinsic property of software systems that require adaptation to cope with dynamically changing environments. Achieving adaptability is challenging. Variability is a key solution as it enables a software system to change its behavior which corresponds to a specific need. The abstraction of variability is to manage variants, which are dynamic parts to be composed to the base system. Run-time variability realizes these variant compositions dynamically at run time to enable adaptation. Adaptation, relying on variants specified at build time, is called anticipated adaptation, which allows the system behavior to change with respect to a set of predefined execution environments. This implies the inability to solve practical problems in which the execution environment is not completely fixed and often unknown until run time. Enabling unanticipated adaptation, which allows variants to be dynamically added at run time, alleviates this inability, but it holds several implications yielding system instability such as inconsistency and run-time failures. Adaptation should be performed only when a system reaches a consistent state to avoid inconsistency. Inconsistency is an effect of adaptation happening when the system changes the state and behavior while a series of methods is still invoking. A software bug is another source of system instability. It often appears in a variant composition and is brought to the system during adaptation. The problem is even more critical for unanticipated adaptation as the system has no prior knowledge of the new variants.
This dissertation aims to achieve anticipated and unanticipated adaptation. In achieving adaptation, the issues of inconsistency and software failures, which may happen as a consequence of run-time adaptation, are evidently addressed as well. Roles encapsulate dynamic behavior used to adapt players representing the base system, which is the rationale to select roles as the software system's variants. Based on the role concept, this dissertation presents three mechanisms to comprehensively address adaptation. First, a dynamic instance binding mechanism is proposed to loosely bind players and roles. Dynamic binding of roles enables anticipated and unanticipated adaptation. Second, an object-level tranquility mechanism is proposed to avoid inconsistency by allowing a player object to adapt only when its consistent state is reached. Last, a rollback recovery mechanism is proposed as a proactive mechanism to embrace and handle failures resulting from a defective composition of variants. A checkpoint of a system configuration is created before adaptation. If a specialized bug sensor detects a failure, the system rolls back to the most recent checkpoint. These mechanisms are integrated into a role-based runtime, called LyRT.
LyRT was validated with three case studies to demonstrate the practical feasibility. This validation showed that LyRT is more advanced than the existing variability approaches with respect to adaptation due to its consistency control and failure handling. Besides, several benchmarks were set up to quantify the overhead of LyRT concerning the execution time of adaptation. The results revealed that the overhead introduced to achieve anticipated and unanticipated adaptation to be small enough for practical use in adaptive software systems. Thus, LyRT is suitable for adaptive software systems that frequently require the adaptation of large sets of objects.
Buchteile zum Thema "Unanticipated Adaptation, Role, Consistency"
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Wong, Reuben. „7. The Role of the Member States“. In International Relations and the European Union. Oxford University Press, 2017. http://dx.doi.org/10.1093/hepl/9780198737322.003.0007.
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This chapter examines the viability of Europeanization as an alternative approach to understanding the foreign policies of European Union member states. It first considers the meanings of Europeanization before proposing an operational definition of Europeanization, linking and contrasting it with the dominant European integration theories, namely neo-functionalism and intergovernmentalism. Three dimensions of Europeanization in national foreign policy are discussed: adaptation and policy convergence, national projection, and identity reconstruction. The chapter also compares Europeanization and intergovernmentalism in the study of national foreign policy and concludes with an overview of challenges involved in Europeanization research. It argues that the Europeanization concept, despite lacking theoretical consistency, remains useful and explains why this is so.