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Interaction Behavior (interaction + behavior)
Selected AbstractsTowards workflow simulation in service-oriented architecture: an event-based approachCONCURRENCY AND COMPUTATION: PRACTICE & EXPERIENCE, Issue 4 2008Yanchong Zheng Abstract The emergence of service-oriented architecture (SOA) has brought about a loosely coupled computing environment that enables flexible integration and reuse of heterogeneous systems. On building a SOA for application systems, more and more research has been focused on service composition, in which workflow and simulation techniques have shown great potential. Simulation of services' interaction is important since the services ecosystem is dynamic and in continuous evolution. However, there is a lack in the research of services' simulation, especially models, methods and systems to support the simulation of interaction behavior of composite services. In this paper, an enhanced workflow simulation method with the support of interactive events mechanism is proposed to fulfill this requirement. At build time, we introduce an event sub-model in the workflow meta-model, and our simulation engine supports the event-based interaction pattern at run time. With an example simulated in the prototype system developed according to our method, the advantages of our method in model verification and QoS evaluation for service compositions are also highlighted. Copyright © 2007 John Wiley & Sons, Ltd. [source] Capillary electrochromatography with monolithic silica column:,I.ELECTROPHORESIS, Issue 3 2003Preparation of silica monoliths having surface-bound octadecyl moieties, applications to the separation of neutral, charged species, their chromatographic characterization Abstract Monolithic silica columns with surface-bound octadecyl (C18) moieties have been prepared by a sol-gel process in 100 ,m ID fused-silica capillaries for reversed-phase capillary electrochromatography of neutral and charged species. The reaction conditions for the preparation of the C18-silica monoliths were optimized for maximum surface coverage with octadecyl moieties in order to maximize retention and selectivity toward neutral and charged solutes with a sufficiently strong electroosmotic flow (>,2 mm/s) to yield rapid analysis time. Furthermore, the effect of the pore-tailoring process on the silica monoliths was performed over a wide range of treatment time with 0.010 M ammonium hydroxide solution in order to determine the optimum time and conditions that yield mesopores of narrow pore size distribution that result in high separation efficiency. Under optimum column fabrication conditions and optimum mobile phase composition and flow velocity, the average separation efficiency reached 160,000 plates/m, a value comparable to that obtained on columns packed with 3 ,m C18-silica particles with the advantages of high permeability and virtually no bubble formation. The optimized monolithic C18-silica columns were evaluated for their retention properties toward neutral and charged analytes over a wide range of mobile phase compositions. A series of dimensionless retention parameters were evaluated and correlated to solute polarity and electromigration property. A dimensionless mobility modulus was introduced to describe charged solute migration and interaction behavior with the monolithic C18-silica in a counterflow regime during capillary electrochromatography (CEC )separations. The mobility moduli correlated well with the solute hydrophobic character and its charge-to-mass ratio. [source] Detecting infants in need: Are complicated measures really necessary?INFANT MENTAL HEALTH JOURNAL, Issue 4 2007Kaija Puura The object of this paper was to study how the Baby Alarm Distress Scale (ADBB), developed as a simple screening tool for front line professionals working with infants, correlates with the more detailed assessment method of the Global Rating Scale (GRS) for Mother-Infant Interaction at two and four months. A sample of 127 eight- to eleven-week-old infants was videotaped in free interaction with their mothers, and infant interaction behavior was rated with both methods by independent researchers. Compared to the GRS infant scales the sensitivity of the ADBB, using the recommended cutoff point of 5 or more, was 0.77 and specificity 0.80. In further analyses it was found that deviant ratings of two items of the ADBB, the quality of eye contact between the infant and the caregiver and assessment of the sense of relationship between the infant and the caregiver, were the items most strongly associated with poor interaction skills of the infant on the GRS. Mothers of infants found deviant in the ADBB performed more poorly in the interaction with their infants when compared to mothers of infants found healthy in the ADBB. For the purpose of detecting deviations in infant interaction skills as signs of possible problems in early parent-infant interaction the ADBB seems to be a sufficiently sensitive and specific instrument. However, the results of this study still need to be tested with larger samples and against other observation methods. [source] Still-face and separation effects on depressed mother-infant interactionsINFANT MENTAL HEALTH JOURNAL, Issue 3 2007Tiffany Field Maternal emotional and physical unavailability have differential effects on infant interaction behavior as noted in a study by Field, Vega-Lahr, Scafidi, and Goldstein (1986). In that study, four-month-old infants experienced their mother's still face and a brief separation from the mother. Spontaneous interactions preceded and followed these to serve as baseline and reunion episodes. Although the infants became more negative and agitated during both conditions, the still face elicited more stressful behaviors. The present study replicated the Field et al. (1986) study but also compared infants of depressed and infants of nondepressed mothers. The infants of depressed versus those of nondepressed mothers were less interactive during the spontaneous interactions, as were their mothers, and they showed less distress behaviors during the still-face condition. During the "return to spontaneous interaction" following the still-face condition, they were also less interactive, as evidenced by fewer positive as well as fewer negative behaviors. Their mothers were also less active. The nondepressed mothers and infants were extremely active, as if trying to reinstate the initial spontaneous interaction. Minimal change occurred during the separation condition except that both groups of infants vocalized less than they had during the spontaneous interaction. During the reunion following the separation period, the infants of depressed versus nondepressed mothers were paradoxically more active, although their mothers continued to be less interactive. [source] Biocomplementary interaction behavior in DNA-like and RNA-like polymersJOURNAL OF POLYMER SCIENCE (IN TWO SECTIONS), Issue 23 2009Chih-Chia Cheng Abstract A series of nucleobased polymers and copolymers were synthesized through atom transfer radical polymerization (ATRP). Biocomplementary DNA- and RNA-like supramolecular complexes are formed in dilute DMSO solution through nucleobase recognition. 1H NMR titration studies of these complexes in CDCl3 indicated that thymine-adenine (T-A) and uracil-adenine (U-A) complexes form rapidly on the NMR time scale with high association constants (up to 534 and 671 M,1, respectively) and result in significant Tg increase. WAXD and differential scanning calorimetry analyzes in the bulk state indicate the presence of highly physical cross-linked structures and provide further details into the nature of the self-assembly of these systems. Furthermore, this study is of discussion on the difference in the hydrogen bond strength between T-A and U-A base pairs within polymer systems, indicating that the strength of hydrogen bonds in RNA U-A pairs is stronger than that in DNA T-A base pairs. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 6388,6395, 2009 [source] Interpersonal Expectations as the Building Blocks of Social Cognition: An Interdependence Theory PerspectivePERSONAL RELATIONSHIPS, Issue 1 2002John G. Holmes In this paper I use interdependence theory as an analytic framework for depicting the logically interconnected network of expectations that determines social interaction. The framework focuses on expectations about a partner's goals (B) relevant to particular interdependence situations (S), and suggests that expectations about these two elements define the social situation that activates a person's own goals (A). Together, these elements determine interaction behavior (I). This SABI framework is complementary to Mischel and Shoda's (1995) CAPS theory of personality in its logic. It depicts a person's interpersonal dispositions as having profiles or signatures dependent on both the expected features of situations and the expected dispositions of partners. A taxonomic theory for classifying both situations and the functionally relevant goals of interaction partners is outlined. Research on attachment theory and trust is used to illustrate the model. Finally, I suggest that people's expectations about partners' prosocial motivations,their perceived responsiveness toward the self,play an imperial role in social cognition, and, further, that complex SABI models can be seen as detailing a set of security operations that serve as a program for social action. SABI models detail the set of mechanisms that constitute the basic survival kit of interpersonal relations. [source] Hypolocomotion, anxiety and serotonin syndrome-like behavior contribute to the complex phenotype of serotonin transporter knockout miceGENES, BRAIN AND BEHAVIOR, Issue 4 2007A. V. Kalueff Although mice with a targeted disruption of the serotonin transporter (SERT) have been studied extensively using various tests, their complex behavioral phenotype is not yet fully understood. Here we assess in detail the behavior of adult female SERT wild type (+/+), heterozygous (+/,) and knockout (,/,) mice on an isogenic C57BL/6J background subjected to a battery of behavioral paradigms. Overall, there were no differences in the ability to find food or a novel object, nest-building, self-grooming and its sequencing, and horizontal rod balancing, indicating unimpaired sensory functions, motor co-ordination and behavioral sequencing. In contrast, there were striking reductions in exploration and activity in novelty-based tests (novel object, sticky label and open field tests), accompanied by pronounced thigmotaxis, suggesting that combined hypolocomotion and anxiety (rather than purely anxiety) influence the SERT ,/, behavioral phenotype. Social interaction behaviors were also markedly reduced. In addition, SERT ,/, mice tended to move close to the ground, frequently displayed spontaneous Straub tail, tics, tremor and backward gait , a phenotype generally consistent with ,serotonin syndrome'-like behavior. In line with replicated evidence of much enhanced serotonin availability in SERT ,/, mice, this serotonin syndrome-like state may represent a third factor contributing to their behavioral profile. An understanding of the emerging complexity of SERT ,/, mouse behavior is crucial for a detailed dissection of their phenotype and for developing further neurobehavioral models using these mice. [source] | ||||||||||