Academic literature on the topic 'Extended Parallel Process Model'
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Journal articles on the topic "Extended Parallel Process Model"
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Popova, Lucy. "The Extended Parallel Process Model." Health Education & Behavior 39, no. 4 (October 14, 2011): 455–73. http://dx.doi.org/10.1177/1090198111418108.
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Siu, Wanda. "Extended Parallel Process Model and H5N1 Influenza Virus." Psychological Reports 102, no. 2 (April 2008): 539–50. http://dx.doi.org/10.2466/pr0.102.2.539-550.
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This study integrated the Extended Parallel Process Model and forewarning cues to assess the promotion of preventive measures against the H5N1 influenza virus, a significant health threat that affects Asia, Europe, and the USA. There are two types of forewarning, (1) telling the audience that they will hear messages intended to persuade them and (2) telling the audience the topic and stance of the impending persuasive message. Analysis of ratings by 265 undergraduates indicated that forewarnings of the topic and stance of a promotional message on the H5N1 virus facilitated elaboration of coping-related thoughts which enhance perceived self-efficacy and a stronger behavioral intention to combat H5N1. Conversely, the elaboration of danger-related thoughts evoked some fear but enhanced source perception.
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Batchelder, Alicia, and Jonathan Matusitz. "“Let's Move” Campaign: Applying the Extended Parallel Process Model." Social Work in Public Health 29, no. 5 (July 28, 2014): 462–72. http://dx.doi.org/10.1080/19371918.2013.865110.
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Evans, Ruth EC, Rebecca J. Beeken, Andrew Steptoe, and Jane Wardle. "Cancer information and anxiety: Applying the Extended Parallel Process Model." Journal of Health Psychology 17, no. 4 (September 13, 2011): 579–89. http://dx.doi.org/10.1177/1359105311421046.
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There is concern that public education about testicular cancer (TC) may cause unnecessary anxiety. Psychological theory suggests that if threat (eg, TC) information is accompanied with threat control strategies (eg, testicular self-examination; TSE) anxiety is less likely. Male students ( N=443) were randomized to either a TC or TC +TSE information group or a no information control group, and assessed at three time points. Anxiety levels did not differ between the groups and exposure to TC+TSE resulted in greater perceived message benefit, increased intention to self-examine and lower message denigration. This suggests TC information is not anxiogenic, but inclusion of TSE information may improve acceptance of disease awareness information.
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Basil, Michael, Debra Basil, Sameer Deshpande, and Anne M. Lavack. "Applying the Extended Parallel Process Model to Workplace Safety Messages." Health Communication 28, no. 1 (January 2013): 29–39. http://dx.doi.org/10.1080/10410236.2012.708632.
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Davis, Stephen M., Diana Martinelli, Brian Braxton, Kyle Kutrovac, and Todd Crocco. "The Impact of the Extended Parallel Process Model on Stroke Awareness." Stroke 40, no. 12 (December 2009): 3857–63. http://dx.doi.org/10.1161/strokeaha.109.559427.
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Quick, Brian L., Nicole R. LaVoie, Tobias Reynolds-Tylus, Andrea Martinez-Gonzalez, and Chris Skurka. "Examining Mechanisms Underlying Fear-Control in the Extended Parallel Process Model." Health Communication 33, no. 4 (January 17, 2017): 379–91. http://dx.doi.org/10.1080/10410236.2016.1266738.
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Goodall, Catherine E., and Anthony J. Roberto. "An Inconvenient Truth: An Application of the Extended Parallel Process Model." Communication Teacher 22, no. 3 (July 2008): 93–96. http://dx.doi.org/10.1080/17404620802154691.
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Roberto, Anthony J. "Editor's Note for the Extended Parallel Process Model: Two Decades Later." Health Communication 28, no. 1 (January 2013): 1–2. http://dx.doi.org/10.1080/10410236.2013.743748.
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Witte, Kim. "Putting the fear back into fear appeals: The extended parallel process model." Communication Monographs 59, no. 4 (December 1992): 329–49. http://dx.doi.org/10.1080/03637759209376276.
Full textDissertations / Theses on the topic "Extended Parallel Process Model"
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Murniadi, Krishnamurti Murniadi. "Curbing Excessive Pornography Consumption Using Traditional, Relationship, and Religious Identity-Based Extended Parallel Process Model Messages." Kent State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=kent153295926543633.
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Shi, Rui. "Applying the Extended Parallel Process Model to examine posters in 2008 Chinese annual anti-drug campaign." Winston-Salem, NC : Wake Forest University, 2009. http://dspace.zsr.wfu.edu/jspui/handle/10339/42600.
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Thesis (M.A.)--Wake Forest University. Dept. of Communication, 2009.Title from electronic thesis title page. Thesis advisor: Michael David Hazen. Vita. Includes bibliographical references (p. 50-55).
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Rihawi, Leyla. "Risposte dei consumatori a messaggi divulgati durante una situazione di crisi alimentare: un'applicazione dell'Extended Parallel Process Model." Doctoral thesis, Università degli studi di Padova, 2015. http://hdl.handle.net/11577/3422520.
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In the last 20 years the market has been hit by several food scares which have shown the main role of information in affecting the consumer response. In order to verify how the risk communication may affect the risk perception as well as the consumer purchasing behaviour during a food scare, we have chosen to investigate the information by analysing the components of the message and using a cognitive model. The Extended Process Parallel Model (Witte, 1992), which has already been used in health risk communication, states that messages about risks should include a threat component and an efficacy component: their different combinations will produce emotional responses (associated with the fear control caused by the message) or cognitive responses (associated with danger control). Eight hundred questionnaires, including three risk messages from three different sources (the press, the institutions and the word of mouth), were administered to estimate the importance of the components of a message. In order to determine the role of the source of information, the sample has been divided into two categories under different experimental conditions: the former knows the source of information (experimental group), the latter doesn’t know anything about it (control group). The first results confirm the validity of the model: messages with high risks and low efficacy lead consumer to the emotional response, whereas messages with high risk and high efficacy are associated with a fear control process. Consumers with a threat control process tend not to reduce the purchase of the “risky food”, while those with a fear control process tend to reduce their purchase. Furthermore the role of information source is partially supported on this study.Le paure abbattutesi sui mercati negli ultimi 20 anni hanno evidenziato il ruolo fondamentale dell’informazione nel condizionare la risposta dei consumatori. Per verificare l’influenza della comunicazione del rischio sulla percezione del rischio e i comportamenti d’acquisto dei consumatori durante una paura alimentare si è scelto di studiare l’informazione a partire dalle componenti del messaggio utilizzando un modello cognitivo. L’Extended Process Parallel Model (Witte, 1992), paradigma già impiegato nella comunicazione del rischio sanitario, prevede che i messaggi di rischio siano strutturati secondo una componente di rischio ed una di efficacia che, a seconda delle loro combinazioni, determinano una risposta emotiva (volta al controllo della paura suscitata dal messaggio), o cognitiva (volta al controllo del rischio). Per misurare l’importanza delle componenti del messaggio sono stati somministrati 800 questionari con tre messaggi di rischio tratti da altrettante fonti (stampa, istituzioni e word of mouth). Il ruolo della fonte d’informazione nel veicolare il messaggio è stato verificato attraverso la suddivisione del campione in due categorie sottoposte a diverse condizioni sperimentali: uno a conoscenza della fonte d’informazione (gruppo sperimentale ) l’altro senza alcun riferimento alla fonte (gruppo di controllo). I primi risultati confermano la validità del modello: i messaggi con un elevato rischio e una bassa efficacia determinano una risposta emotiva dei consumatori, mentre, quelli con un elevato rischio e un’elevata efficacia corrispondono ad un processo di controllo del pericolo. I consumatori che esercitano un processo di controllo della paura tendono a non ridurre la quantità acquistata dell’alimento a rischio, mentre coloro che attivano il controllo della paura tendono a ridurre gli acquisti. Infine il ruolo della fonte risulta non essere determinante nella percezione del messaggio.
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Bueno, Yvette. "The Co-Construction of Self-Talk and Illness Narratives: An HIV Intervention Case Study." Scholarly Repository, 2009. http://scholarlyrepository.miami.edu/oa_dissertations/200.
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This case study investigates the co-construction communication patterns that emerged during an Human Immunodeficiency Virus (HIV) intervention designed to reduce negative and critical self-talk. The transcripts of eight sequential acupressure and behavioral (SAB) counseling intervention sessions between a therapist and two medically nonadherent HIV-infected women were analyzed using Giorgi's (1989, 1994, 1997, 2006) phenomeonlogical method of inquiry. The analysis revealed three major themes: "assessing the present," "reviewing the past," and "forging the future," and eight subthemes: "safe atmosphere," "disclosure," "negotiating meaning," "releasing the past," "breaking the past-to-present pattern," "reducing uncertainty," "generating options," and "projecting images." Prior to the intervention sessions, the women reported experiencing negative and critical self-talk and inconsistent medication adherence. Self-talk and illness narrative modifications were evident within and across sessions as the therapist used sequential acupressure and behavioral counseling techniques. During the one month follow-up, the participants reported no experience of negative and critical self-talk and described actions taken toward goals discussed and imagined during the intervention such as medication adherence, exercise, and reenrollment in school. The co-construction themes that emerged in the intervention were consistent with findings in the comforting message literature with specific parallels to the factor analysis findings of Bippus (2001). This work lends support to comforting message research and suggests that distinctions between everyday comforting messages and chronic illness support strategies may be more similar than anticipated. Other study conclusions include clinical and practical implications for people working with HIV-infected individuals.
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Heiden, Erin Ose. "Injuries among individuals with pre-existing spinal cord injury: understanding injury patterns, burdens, and prevention." Diss., University of Iowa, 2013. https://ir.uiowa.edu/etd/1624.
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As a growing body of research has focused on the individual, social, and environmental factors that facilitate life after spinal cord injury (SCI), particular emphasis has been placed on health conditions that are modifiable and preventable. Subsequent injuries are a serious health problem for individuals with SCI. They are a direct threat to further morbidity and mortality, and are both a cause and consequence other secondary health conditions.
As a first step toward understanding this public health problem, the purpose of this dissertation research was to describe the patterns, burdens, and prevention of subsequent injury among individuals with SCI. In three distinct, but related studies, this dissertation examined the characteristics of hospitalizations due to an injury among individuals with paraplegia, and compared the differences in length of stay (LOS) and hospital costs of injury hospitalizations between individuals with quadriplegia versus paraplegia. In addition, it explored the experience of subsequent injury among individuals with SCI who return to work and examined perceptions of threat and efficacy in preventing subsequent injury using the Extended Parallel Process Model. Using discharge level weighting available in the Nationwide Inpatient Sample, Study 1 calculated national estimates of injury hospitalizations for individuals with paraplegia by patient, hospital, and injury characteristics. Most injury hospitalizations occurred among males, to individuals 35-49 years, and were due to falls, poisonings, or motor vehicle traffic. With the same dataset, Study 2 used logistic regression to estimate the effect of patient characteristics on odds of hospitalized patients with quadriplegia versus paraplegia, and linear regression to estimate predicted differences in hospital costs for individuals with quadriplegia compared to paraplegia. Fewer injury hospitalizations but longer hospital stays, and higher hospital costs per discharge were found for individuals with quadriplegia compared to individuals with paraplegia. Males, younger age, and the uninsured were significant predictors of higher hospital costs. Finally, Study 3 used in-depth interviews to qualitatively explore the perceptions on subsequent injury among individuals with SCI who return to work, and found individuals with SCI who return to work recognized the importance of preventing subsequent injury, and were taking actions to prevent subsequent injury in their daily life and in the workplace.
The significance of this research is that it is the first description of injury hospitalizations for all causes of injury by specific type of SCI, and the associated medical outcomes of LOS and direct medical costs. Prevention of subsequent injury should be a priority. The perceptions of individuals with SCI about the severity of and their susceptibility to injury and the efficacy of individual and environmental actions to prevent subsequent injury described in this research should be used to inform the development of interventions that prevent subsequent injury.
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Patinho, Pedro José Grilo Lopes. "An abstract model for parallel execution of prolog." Doctoral thesis, Universidade de Évora, 2017. http://hdl.handle.net/10174/21002.
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Logic programming has been used in a broad range of fields, from artifficial intelligence
applications to general purpose applications, with great success. Through its
declarative semantics, by making use of logical conjunctions and disjunctions, logic
programming languages present two types of implicit parallelism: and-parallelism and
or-parallelism.
This thesis focuses mainly in Prolog as a logic programming language, bringing out
an abstract model for parallel execution of Prolog programs, leveraging the Extended
Andorra Model (EAM) proposed by David H.D. Warren, which exploits the implicit
parallelism in the programming language. A meta-compiler implementation for an
intermediate language for the proposed model is also presented.
This work also presents a survey on the state of the art relating to implemented Prolog
compilers, either sequential or parallel, along with a walk-through of the current parallel
programming frameworks. The main used model for Prolog compiler implementation,
the Warren Abstract Machine (WAM) is also analyzed, as well as the WAM’s successor
for supporting parallelism, the EAM; Sumário:
Um Modelo Abstracto para
Execução Paralela de Prolog
A programação em lógica tem sido utilizada em diversas áreas, desde aplicações de
inteligência artificial até aplicações de uso genérico, com grande sucesso. Pela sua
semântica declarativa, fazendo uso de conjunções e disjunções lógicas, as linguagens de
programação em lógica possuem dois tipos de paralelismo implícito: ou-paralelismo e
e-paralelismo.
Esta tese foca-se em particular no Prolog como linguagem de programação em lógica,
apresentando um modelo abstracto para a execução paralela de programas em Prolog,
partindo do Extended Andorra Model (EAM) proposto por David H.D. Warren, que
tira partido do paralelismo implícito na linguagem. É apresentada uma implementação
de um meta-compilador para uma linguagem intermédia para o modelo proposto.
É feita uma revisão sobre o estado da arte em termos de implementações sequenciais
e paralelas de compiladores de Prolog, em conjunto com uma visita pelas linguagens
para implementação de sistemas paralelos. É feita uma análise ao modelo principal
para implementação de compiladores de Prolog, a Warren Abstract Machine (WAM) e
da sua evolução para suportar paralelismo, a EAM.
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Wang, Yi-ke. "Using an extended object model for object-oriented parallel simulation of VLSI microprocessors /." free to MU campus, to others for purchase, 1996. http://wwwlib.umi.com/cr/mo/fullcit?p9823320.
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Safdar, Saba F. "An extended model of acculturation process : study of Iranian immigrants in Canada /." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0001/MQ33508.pdf.
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Jelly, Innes E. "A parallel process model and architecture for a Pure Logic Language." Thesis, Sheffield Hallam University, 1990. http://shura.shu.ac.uk/8778/.
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The research presented in this thesis has been concerned with the use of parallel logic systems for the implementation of large knowledge bases. The thesis describes proposals for a parallel logic system based on a new logic programming language, the Pure Logic Language. The work has involved the definition and implementation of a new logic interpreter which incorporates the parallel execution of independent OR processes, and the specification and design of an appropriate non shared memory multiprocessor architecture. The Pure Logic Language which is under development at JeL, Bracknell, differs from Prolog in its expressive powers and implementation. The resolution based Prolog approach is replaced by a rewrite rule technique which successively transforms expressions according to logical axioms and user defined rules until no further rewrites are possible. A review of related work in the field of parallel logic language systems is presented. The thesis describes the different forms of parallelism within logic languages and discusses the decision to concentrate on the efficient implementation of OR parallelism. The parallel process model for the Pure Logic Language uses the same execution technique of rule rewriting but has been adapted to implement the creation of independent OR processes and the required message passing operations. The parallelism in the system is implemented automatically and, unlike many other parallel logic systems there are no explicit program annotations for the control of parallel execution. The spawning of processes involves computational overheads within the interpreter: these have been measured and results are presented. The functional requirements of a multiprocessor architecture are discussed: shared memory machines are not scalable for large numbers of processing elements, but, with no shared memory, data needed by offspring processors must be copied from the parent or else recomputed. The thesis describes an optimised format for the copying of data between processors. Because a one-to-many communication pattern exits between parent and offspring processors a broadcast architecture is indicated. The development of a system based on the broadcasting of data packets represents a new approach to the parallel execution of logic languages and has led to the design of a novel bus based multiprocessor architecture. A simulation of this multiprocessor architecture has been produced and the parallel logic interpreter mapped onto it: this provides data on the predicted performance of the system. A detailed analysis of these results is presented and the implications for future developments to the proposed system are discussed.
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Karahan, Ceren. "Pricing Inflation Indexed Swaps Using An Extended Hjm Framework With Jump Process." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612741/index.pdf.
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Inflation indexed instruments are designed to help protect investors against the changes in the
general level of prices. So, they are frequently preferred by investors and they have become
increasingly developing part of the market. In this study, firstly, the HJM model and foreign
currency analogy used to price of inflation indexed instruments are investigated. Then, the
HJM model is extended with finite number of Poisson process. Finally, under the extended
HJM model, a pricing derivation of inflation indexed swaps, which are the most liquid ones
among inflation indexed instruments in the market, is given.
Books on the topic "Extended Parallel Process Model"
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D'Autrechy, C. Lynne. Autoplan: A self-processing network model for an extended blocks world planning environment. College Park, Md: University of Maryland, 1990.
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A, Reggia James, McFadden Francis M, University of Maryland at College Park., United States. National Aeronautics and Space Administration., and National Science Foundation (U.S.), eds. Autoplan: A self-processing network model for an extended blocks world planning environment. College Park, Md: University of Maryland, 1990.
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D'Autrechy, C. Lynne. Autoplan: A self-processing network model for an extended blocks world planning environment. College Park, Md: University of Maryland, 1990.
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Dubanov, Aleksandr. Computer simulation in pursuit problems. ru: Publishing Center RIOR, 2022. http://dx.doi.org/10.29039/02102-6.
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Currently, computer simulation in virtual reality systems has a special status. In order for a computer model to meet the requirements of the tasks it models, it is necessary that the mathematical apparatus correctly describe the simulated phenomena.
In this monograph, the simulation of pursuit problems is carried out. An adaptive modeling of the behavior of both pursuers and targets is carried out. An iterative calculation of the trajectories of the participants in the pursuit problem is carried out.
The main attention is paid to the methods of pursuit and parallel rendezvous. These methods are taken as the basis of the study and are modified in the future.
The scientific novelty of the study is the iterative calculation of the trajectories of the participants in the pursuit task when moving at a constant speed, while following the predicted trajectories.
The predicted trajectories form a one-parameter network of continuous lines of the first order of smoothness. The predicted trajectories are calculated taking into account the restrictions on the curvature of the participant in the pursuit problem.
The fact of restrictions on curvature can be interpreted as restrictions on the angular frequency of rotation of the object of the pursuit problem.
Also, the novelty is the calculation of the iterative process of group pursuit of multiple targets, when targets are hit simultaneously or at specified intervals. The calculation of the parameters of the network of predicted trajectories is carried out with a curvature variation in order to achieve the desired temporal effect.
The work also simulates the adaptive behavior of the pursuer and the target. The principle of behavior can be expressed on the example of a pursuer with a simple phrase: "You go to the left - I go to the left." This happens at each iteration step in terms of choosing the direction of rotation. For the purpose, the principle of adaptive behavior is expressed by the phrase: "You go to the left - I go to the right."
The studies, algorithms and models presented in the monograph can be in demand in the design of autonomously controlled unmanned aerial vehicles with elements of artificial intelligence.
The task models in the monograph are supplemented with many animated images, where you can see the research process.
Also, the tasks have an implementation in a computer mathematics system and can be transferred to virtual reality systems if necessary.
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Chang, Si-En. Extended restricted and-parallelism execution model and abstract machine for logic programming. 1990.
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Fant, Karl M. Computer Science Reconsidered: The Invocation Model of Process Expression. Wiley & Sons, Incorporated, John, 2007.
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Burrows, Jared, and Clyde G. Reed. Free Improvisation as a Path-Dependent Process. Edited by George E. Lewis and Benjamin Piekut. Oxford University Press, 2014. http://dx.doi.org/10.1093/oxfordhb/9780195370935.013.018.
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Freely improvised music lacks commonly used mechanisms (e.g., scores, conductors, shared performance practices) that serve to coordinate choices across performers in other musical genres. This chapter analyses problems and solutions of musical coordination in free improvisation through the lens of “path dependence,” an analytic framework used in economics to model situations in which agents perceive a high pay-off to coordinating market choices. Key results in the path-dependence literature are the likelihood of multiple equilibria and “lock-in” to inferior outcomes. The interpersonal skills identified as critical for coordination in free improvisation closely parallel the skills that have been identified by social scientists as essential for high-functioning group behavior in non-musical pursuits. This suggests a pedagogical role for improvisation in enhancing economic and personal well-being with regard to human capital formation and happiness.
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Mundy, Peter. A Neural Networks, Information-Processing Model of Joint Attention and Social-Cognitive Development. Edited by Philip David Zelazo. Oxford University Press, 2013. http://dx.doi.org/10.1093/oxfordhb/9780199958474.013.0010.
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A neural networks approach to the development of joint attention can inform the study of the nature of human social cognition, learning, and symbolic thought process. Joint attention development involves increments in the capacity to engage in simultaneous or parallel processing of information about one’s own attention and the attention of other people. Infant practice with joint attention is both a consequence and an organizer of a distributed and integrated brain network involving frontal and parietal cortical systems. In this chapter I discuss two hypotheses that stem from this model. One is that activation of this distributed network during coordinated attention enhances the depth of information processing and encoding beginning in the first year of life. I also propose that with development joint attention becomes internalized as the capacity to socially coordinate mental attention to internal representations. As this occurs the executive joint attention network makes vital contributions to the development of human social cognition and symbolic thinking.
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Bratman, Michael E. A Planning Agent’s Self-Governance Over Time. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190867850.003.0011.
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This essay develops a model of a planning agent’s self-governance over time. Such diachronic self-governance involves planned temporally extended activity, synchronic self-governance at times along the way, appropriate cross-temporal interconnections across relevant attitudes along the way, and standpoints that involve an end of one’s diachronic self-governance. This end helps support coordination between relevant synchronic self-governance and relevant cross-temporal continuities in plan. The explanation of the relevant cross-temporal interconnections appeals to a parallel between a single planning agent’s self-governance over time and several planning agents acting together in shared intentional ways: in such self-governance one is, so to speak, “acting together” with oneself over time. Finally, the relevant planned temporally extended activity implicitly specifies a temporal footprint within which anticipated future regret can play a role in determining whether there is diachronic self-governance. This helps explain why drinking the toxin in Kavka’s puzzle will normally not be a case of diachronic self-governance.
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Mi, Chienkuo, and Shane Ryan. Reflective Knowledge. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198769811.003.0010.
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In this paper, we defend the claim that reflective knowledge is necessary for extended knowledge. We begin by examining a recent account of extended knowledge provided by Palermos and Pritchard (2013). We note a weakness with that account and a challenge facing theorists of extended knowledge. The challenge that we identify is to articulate the extended cognition condition necessary for extended knowledge in such a way as to avoid counterexample from the revamped Careless Math Student and Truetemp cases. We consider but reject Pritchard’s (2012b) epistemological disjunctivism as providing a model for doing so. Instead, we set out an account of reflection informed by Confucianism and dual-process theory. We make the case that reflective knowledge offers a way of overcoming the challenge identified. We show why such knowledge is necessary for extended knowledge, while building on Sosa’s (2012) account of meta-competence.
Book chapters on the topic "Extended Parallel Process Model"
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Xu, Liu-Jun, and Ji-Ping Huang. "Theory for Hele-Shaw Convective Cloaks: Bilayer Scheme." In Transformation Thermotics and Extended Theories, 65–86. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-5908-0_6.
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AbstractThermal convection is one of the three basic heat transfer mechanisms, profoundly influencing the natural environment, social production, and daily life. However, the high complexity of governing equation, which describes the coupling of heat and mass transfer, makes it challenging to manipulate thermal convection at will in both theory and experiment. Here, we consider the heat transfer in Hele-Shaw cells, a widely-used model of Stokes flow between two parallel plates with a small gap, and apply the scattering-cancellation technology to construct convective thermal materials with bilayer structures and homogeneous isotropic materials. By tailoring thermal conductivity and viscosity, we demonstrate cloaking devices that can simultaneously hide obstacles from heat and fluid motion and verify their robustness under various thermal-convection environments by numerical simulations. Our results show that about 80% of the temperature and pressure disturbances in the background caused by obstacles can be eliminated by the cloak. The developed approach can be extended to control other convection-diffusion systems or multiphysics processes. The results pave a promising path for designing various metadevices such as concentrators or sensors.
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Baillot, Patrick, and Alexis Ghyselen. "Types for Complexity of Parallel Computation in Pi-Calculus." In Programming Languages and Systems, 59–86. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72019-3_3.
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AbstractType systems as a technique to analyse or control programs have been extensively studied for functional programming languages. In particular some systems allow to extract from a typing derivation a complexity bound on the program. We explore how to extend such results to parallel complexity in the setting of the pi-calculus, considered as a communication-based model for parallel computation. Two notions of time complexity are given: the total computation time without parallelism (the work) and the computation time under maximal parallelism (the span). We define operational semantics to capture those two notions, and present two type systems from which one can extract a complexity bound on a process. The type systems are inspired both by size types and by input/output types, with additional temporal information about communications.
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Tramontano, Andrea. "The Knowledge Extended Enterprise: An Innovative Business Model Suggested by Snaidero." In Process Management for the Extended Enterprise, 161–83. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-17051-5_9.
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Chen, Liang. "A model for real-time process algebras (extended abstract)." In Lecture Notes in Computer Science, 372–81. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/3-540-57182-5_29.
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Asvachaiporn, Kamolchai, and Nakornthip Prompoon. "Extended Knowledge Management Capability Model for Software Process Improvement." In The 9th International Conference on Computing and InformationTechnology (IC2IT2013), 259–68. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-37371-8_29.
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Lee, Huey-Ming, Tsang-Yean Lee, Ching-Hao Cheng, and Chia-Hsien Chung. "A Process Scheduling Analysis Model Based on Grid Environment." In Algorithms and Architectures for Parallel Processing, 12–19. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03095-6_2.
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Pilarek, Mariusz, and Roman Wyrzykowski. "Solving Systems of Interval Linear Equations in Parallel Using Multithreaded Model and “Interval Extended Zero” Method." In Parallel Processing and Applied Mathematics, 206–14. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-31464-3_21.
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Yin, Ning, Shanshan Wang, Hongyan Li, and Lilue Fan. "Detecting Data-model-oriented Anomalies in Parallel Business Process." In Web-Age Information Management, 65–77. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-39958-4_6.
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Hoshiya, Masaru, and Osamu Maruyama. "Identification of Autoregressive Process Model by the Extended Kalman Filter." In Lecture Notes in Engineering, 173–83. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-84362-4_16.
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Chatarasi, Prasanth, Jun Shirako, Martin Kong, and Vivek Sarkar. "An Extended Polyhedral Model for SPMD Programs and Its Use in Static Data Race Detection." In Languages and Compilers for Parallel Computing, 106–20. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-52709-3_10.
Full textConference papers on the topic "Extended Parallel Process Model"
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Tsai, Chih Ming, and Wei-Ju Huang. "The Effectiveness of Extended Parallel Process Model on COVID-19 Health Promotion and Social Media Sharing Willingness." In MSIE 2022: 2022 4th International Conference on Management Science and Industrial Engineering. New York, NY, USA: ACM, 2022. http://dx.doi.org/10.1145/3535782.3535844.
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Gantt, Lynn R., Patrick M. Walsh, and Douglas J. Nelson. "Design and Development Process for a Range Extended Split Parallel Hybrid Electric Vehicle." In ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/detc2010-28576.
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The Hybrid Electric Vehicle Team of Virginia Tech (HEVT) is participating in the 2009–2011 EcoCAR: The NeXt Challenge Advanced Vehicle Technology Competition series organized by Argonne National Lab (ANL), and sponsored by General Motors Corporation (GM) and the U.S. Department of Energy (DOE). The goal of EcoCAR is for student engineers to take a GM-donated crossover SUV and re-engineer it to reduce greenhouse gas emissions and petroleum energy use, while maintaining performance, safety and consumer appeal. Following GM’s Vehicle Development Process (VDP), HEVT established team goals that meet or exceed the competition requirements for EcoCAR in the design of a plug-in range-extended hybrid electric vehicle. HEVT is split up into three subteams to complete the competition and meet the requirements of the vehicle development process. The Mechanical subteam is tasked with modifying and refining the Year 1 component specifications and designs for packaging in the vehicle. The Electrical subteam is tasked with implementing a safe high voltage system on the vehicle including the design and development of a Lithium Iron Phosphate (LiFePO4) energy storage subsystem (ESS) donated by A123 Systems. The Controls subteam is tasked with modeling the Vehicle Technical Specifications (VTS) so that the subteams can make intelligent design decisions. The Controls subteam also used a controller Hardware-In-the-Loop (HIL) simulation setup running a real-time vehicle model against the controller hardware to test the HEVT-designed Hybrid Vehicle Supervisory Controller (HVSC). The result of this design process is an Extended-Range Electric Vehicle (E-REV) that uses grid electric energy and E85 fuel for propulsion. The vehicle design is predicted to achieve an SAE J1711 utility factor-corrected fuel consumption of 2.9 l(ge)/100 km (82 mpgge) with an estimated all-electric range of 69 km (43 miles). Using corn-based E85 fuel in North America for the 2015 timeframe and an average North American electricity mix, the well-to-wheels petroleum energy use and greenhouse gas emissions are reduced by 90% and 30% respectively when compared to the stock vehicle: a 4-cylinder, gasoline-fueled Vue XE.
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Masuch, Kristin, Sebastian Hengstler, Laura Schulze, and Simon Trang. "The Impact of Threat and Efficacy on Information Security Behavior: Applying an Extended Parallel Process Model to the Fear of Ransomware." In Hawaii International Conference on System Sciences. Hawaii International Conference on System Sciences, 2021. http://dx.doi.org/10.24251/hicss.2021.803.
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Lohar, Pintu, and Andy Way. "Parallel Data Extraction using Word Embeddings." In 10th International Conference on Advances in Computing and Information Technology (ACITY 2020). AIRCC Publishing Corporation, 2020. http://dx.doi.org/10.5121/csit.2020.101521.
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Building a robust MT system requires a sufficiently large parallel corpus to be available as training data. In this paper, we propose to automatically extract parallel sentences from comparable corpora without using any MT system or even any parallel corpus at all. Instead, we use crosslingual information retrieval (CLIR), average word embeddings, text similarity and a bilingual dictionary, thus saving a significant amount of time and effort as no MT system is involved in this process. We conduct experiments on two different kinds of data: (i) formal texts from news domain, and (ii) user-generated content (UGC) from hotel reviews. The automatically extracted sentence pairs are then added to the already available parallel training data and the extended translation models are built from the concatenated data sets. Finally, we compare the performance of our new extended models against the baseline models built from the available data. The experimental evaluation reveals that our proposed approach is capable of improving the translation outputs for both the formal texts and UGC.
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Birmingham, Wendy C., Man Hung, Watcharaporn Boonyasiriwat, Scott T. Walters, Antoinette M. Stroup, Marc D. Schwartz, Jeremy D. Franklin, and Anita Y. Kinney. "Abstract B12: To screen or not to screen: Examining components of the Extended Parallel Process Model in a tailored-risk communication intervention to promote colorectal cancer screening." In Abstracts: Thirteenth Annual AACR International Conference on Frontiers in Cancer Prevention Research; September 27 - October 1, 2014; New Orleans, LA. American Association for Cancer Research, 2015. http://dx.doi.org/10.1158/1940-6215.prev-14-b12.
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Cousins, William T., and Milt W. Davis. "Evaluating Complex Inlet Distortion With a Parallel Compressor Model: Part 1—Concepts, Theory, Extensions, and Limitations." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45067.
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Modeling compression systems using parallel compressor theory has been used for the analysis of compression system operability since the 1960s. Parallel compressor models have been traditionally designed and used for the analysis of circumferential distortion effects as a means to evaluate the impact of various inlet flow field disturbances on compressor operation. This paper (the first of two) provides a review of the parallel compressor concept and discusses extensions to the original theory. These extensions include the incorporation of dynamic response, application to complex distortions, and the application to inlet swirl. Understanding these effects and the application of parallel compressor theory extensions is required to produce analytical models and computer simulations that can be used to enhance the development testing and the understanding of the response of gas turbine compression systems. Once a computer simulation has been constructed for a particular test article, it can be exercised and results compared against test results where distortion-generator devices (such as distortion screens) have been used, generally with favorable accuracy. The usefulness of the extended parallel compressor model is derived from its ease of use, simplicity, and ability for quick turn-around of results. It is often more desirable to have an analysis capability that is easy and quick to use than to have one that is extremely accurate, especially when understanding basic physics is of primary concern during a test operation. Extreme accuracy may require large amounts of computer resources and take days or weeks to compute a single performance point. While this may be acceptable for design, the limitations of high-fidelity simulations make them impractical to use due to the time constraints imposed by the pace of testing. Applying a timely analysis capability, using a parallel compressor simulation can provide a new physical understanding of the effects of complex distortion during the testing process when comparing the analytical and test results. This concept is presented in two companion papers: the first paper, Part 1, concentrates on the parallel compressor concepts, theory and limitations of the methodology while the second paper, Part 2 [1] presents applications of the approximate methods developed and compares results with experimental data.
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Baikin, Mordechai, Yehuda Taitel, and Dvora Barnea. "Flow Rate Maldistribution in Multi Heated Parallel Pipes." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22650.
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Fluids flowing in parallel pipes, undergoing evaporation, take place in heat exchangers, boilers, power plants, cooling systems and in the nuclear industry. Evaporating two-phase flow in parallel micro-channels is considered for heat removal in microelectronic devices. The main motivation of the present work is associated with the use of solar energy collected in long lines. In this technology, an array of parallel pipes is located at the focal center of parabolic mirrors that focus solar radiation on the pipes to generate steam. It is a common knowledge that maldistribution may occur in evaporating liquid flowing in parallel pipes with common inlet and outlet manifolds. This phenomenon occurs due to multiple steady state solutions some of which are unstable. One may obtain uneven flow rate distribution even for the case of equal heating of the pipes. For non equal heating higher flow rates may take place in the less heated pipes. This is quite an unfavorable phenomenon. The theoretical model developed by Minzer et al. [1] for the flow rate distribution is extended to a larger number of pipes and different heating conditions. Stable and unstable solutions are identified and the model predictions are experimentally validated for different configurations involving three pipes. It is shown that the behavior of the system may depend on the history of the process exhibiting a hysteresis phenomenon. Transient simulations are carried out using this model in order to study the time dependent system response to finite disturbances and to changes in operational conditions.
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Zhuang, Hanqi, and Lixin Liu. "Determination of Number of Independent Parameters for the Self-Calibration of Parallel-Link Mechanisms." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-1084.
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Abstract Self-calibration can be a desirable feature for an intelligent machine such as a computer controlled numerical machine tool that must function outside of controlled laboratory conditions. This is because it is inevitable that variations in the kinematic model arise from imperfections in the manufacturing process and changes of environment conditions. Self-calibration facilitates online compensation of errors induced by loading, thermal and other nongeometric errors. This paper focuses the determination of the maximum number of independent kinematic parameters of a parallel-link mechanism for system self-calibration. Under the assumption of ideal joints and links, a method for obtaining this number is given. A number of examples is given to illustrate the applicability of the proposed method. The result can also be extended to tackle conventional calibration tasks.
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Welsch, Felix, Susanne-Marie Kirsch, Nicolas Michaelis, Paul Motzki, Andreas Schütze, and Stefan Seelecke. "Continuous Operating Elastocaloric Heating and Cooling Device: Model-Based Parameter Study With Airflow Losses." In ASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/smasis2019-5636.
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Abstract Elastocaloric cooling uses solid-state NiTi-based shape memory alloy (SMA) as a non-volatile cooling medium and enables a novel environment-friendly cooling technology. Due to the high specific latent heats activated by mechanical loading/unloading, substantial temperature changes are generated in the material. Accompanied by a small required work input, a high coefficient of performance is achievable. Recently, a fully-functional and illustrative continuous operating elastocaloric air cooling system based on SMA was developed and realized. To assist the design process of an optimized device with given performance and efficiency requirements, a fully coupled thermo-mechanical system-level model of the multi-wire cooling unit was developed and implemented in MATLAB. The resulting compact simulation tool is qualified for massively parallel computation on modern multi-core computers, which allows fast and comprehensive parameter scans. The comparison of first measurements and simulation results showed differences in the system performance. As the airflow rate influences the thermal power and the outlet temperature significantly, the demonstrator is extended with a spatial airflow measurement system to analyze the crossflow between the hot and cold side. Following, the fluid transport model is advanced by the effect of cross-flow losses, and first modeling results with the variation of airflow rate and rotation frequency are presented.
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Kin, Vadim. "Computerized Analysis of Gear Meshing Based on Coordinate Measurement Data." In ASME 1992 Design Technical Conferences. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/detc1992-0070.
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Abstract A mathematical model is proposed for the reconstruction of gear tooth surface features based on the manufacturing process deviations measured with the help of a gear inspection (or coordinate measurement) machine. The model is extended to facilitate the computer simulation of meshing between the measured year and a theoretical master gear, or between two measured gears. This would allow one to predict the transmission errors and bearing contact which are otherwise only possible to investigate using the combination of single-flank testing and a time-consuming work-in and examination procedure. The developed model is applied to the determination of tooth-to-tooth transmission errors of parallel-axis gears and can also be utilized to determine bearing contact and contact stresses and be useful in tooth surface fatigue life calculations.
Reports on the topic "Extended Parallel Process Model"
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Lutz, Carsten. Reasoning about Entity Relationship Diagrams with Complex Attribute Dependencies. Aachen University of Technology, 2002. http://dx.doi.org/10.25368/2022.119.
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Entity Relationship (ER) diagrams are among the most popular formalisms for the support of database design [7, 12, 17, 6]. Their classical use in the (usually computer aided) database design process can roughly be described as follows: after evaluating the requirements of the application, the database designer constructs an ER schema, which represents the conceptual model of the new database. CASE tools can be used to automatically transform the ER schema into a relational database schema, which is then manually fine-tuned. During the last years, the initially rather simple ER formalisms has been extended by various means of expressivity to account for new, more complex application areas such as schema integration for data warehouses [12, 3, 13]. Designing a conceptual model with such enriched ER diagrams is a nontrivial task: there exist complex interactions between the various means of expressivity, which quite often result in unnoticed inconsistencies in the ER schemas and in implicit ramifications of the modeling that have not been intended by the designer. To address this problem, Description Logics (DLs) have been proposed and succesfully used as a tool for reasoning about ER diagrams and thereby detecting the aforementioned anomalies [5, 6, 8].
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Philosoph-Hadas, Sonia, Peter B. Kaufman, Shimon Meir, and Abraham H. Halevy. Inhibition of the Gravitropic Shoot Bending in Stored Cut Flowers Through Control of Their Graviperception: Involvement of the Cytoskeleton and Cytosolic Calcium. United States Department of Agriculture, December 2005. http://dx.doi.org/10.32747/2005.7586533.bard.
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Original objectives: The basic goal of the present project was to study the mechanism involved in shoot graviperception and early transduction, in order to determine the sequence of events operating in this process. This will enable to control the entire process of gravity-induced differential growth without affecting vertical growth processes essential for development. Thus, several new postulated interactions, operating at the perception and early transduction stages of the signaling cascade leading to auxin-mediated bending, were proposed to be examined in snapdragon spikes and oat shoot pulvini, according to the following research goals: 1) Establish the role of amyloplasts as gravireceptors in shoots; 2) Investigate gravity-induced changes in the integrity of shoot actin cytoskeleton (CK); 3) Study the cellular interactions among actin CK, statoliths and cell membranes (endoplasmic reticulum - ER, plasma membrane - PM) during shoot graviperception; 4) Examine mediation of graviperception by modulations of cytosolic calcium - [Ca2+]cyt, and other second messengers (protein phosphorylation, inositol 1,4,5-trisphosphate - IP3). Revisions: 1) Model system: in addition to snapdragon (Antirrhinum majus L.) spikes and oat (Avena sativa) shoot pulvini, the model system of maize (Zea mays) primary roots was targeted to confirm a more general mechanism for graviperception. 2) Research topic: brassinolide, which were not included in the original plan, were examined for their regulatory role in gravity perception and signal transduction in roots, in relation to auxin and ethylene. Background to the topic: The negative gravitropic response of shoots is a complex multi-step process that requires the participation of various cellular components acting in succession or in parallel. Most of the long-lasting studies regarding the link between graviperception and cellular components were focused mainly on roots, and there are relatively few reports on shoot graviperception. Our previous project has successfully characterized several key events occurring during shoot bending of cut flowers and oat pulvini, including amyloplast displacement, hormonal interactions and differential growth analysis. Based on this evidence, the present project has focused on studying the initial graviperception process in flowering stems and cereal shoots. Major conclusions and achievements: 1) The actin and not the microtubule (MT) CK is involved in the graviperception of snapdragon shoots. 2) Gravisensing, exhibited by amyloplast displacement, and early transduction events (auxin redistribution) in the gravitropic response of snapdragon spikes are mediated by the acto-myosin complex. 3) MTs are involved in stem directional growth, which occurs during gravitropism of cut snapdragon spikes, but they are not necessary for the gravity-induced differential growth. 4) The role of amyloplasts as gravisensors in the shoot endodermis was demonstrated for both plant systems. 5) A gravity-induced increase in IP.
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Shmulevich, Itzhak, Shrini Upadhyaya, Dror Rubinstein, Zvika Asaf, and Jeffrey P. Mitchell. Developing Simulation Tool for the Prediction of Cohesive Behavior Agricultural Materials Using Discrete Element Modeling. United States Department of Agriculture, October 2011. http://dx.doi.org/10.32747/2011.7697108.bard.
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The underlying similarity between soils, grains, fertilizers, concentrated animal feed, pellets, and mixtures is that they are all granular materials used in agriculture. Modeling such materials is a complex process due to the spatial variability of such media, the origin of the material (natural or biological), the nonlinearity of these materials, the contact phenomenon and flow that occur at the interface zone and between these granular materials, as well as the dynamic effect of the interaction process. The lack of a tool for studying such materials has limited the understanding of the phenomena relevant to them, which in turn has led to energy loss and poor quality products. The objective of this study was to develop a reliable prediction simulation tool for cohesive agricultural particle materials using Discrete Element Modeling (DEM). The specific objectives of this study were (1) to develop and verify a 3D cohesionless agricultural soil-tillage tool interaction model that enables the prediction of displacement and flow in the soil media, as well as forces acting on various tillage tools, using the discrete element method; (2) to develop a micro model for the DEM formulation by creating a cohesive contact model based on liquid bridge forces for various agriculture materials; (3) to extend the model to include both plastic and cohesive behavior of various materials, such as grain and soil structures (e.g., compaction level), textures (e.g., clay, loam, several grains), and moisture contents; (4) to develop a method to obtain the parameters for the cohesion contact model to represent specific materials. A DEM model was developed that can represent both plastic and cohesive behavior of soil. Soil cohesive behavior was achieved by considering tensile force between elements. The developed DEM model well represented the effect of wedge shape on soil behavior and reaction force. Laboratory test results showed that wedge penetration resistance in highly compacted soil was two times greater than that in low compacted soil, whereas DEM simulation with parameters obtained from the test of low compacted soil could not simply be extended to that of high compacted soil. The modified model took into account soil failure strength that could be changed with soil compaction. A three dimensional representation composed of normal displacement, shear failure strength and tensile failure strength was proposed to design mechanical properties between elements. The model based on the liquid bridge theory. An inter particle tension force measurement tool was developed and calibrated A comprehensive study of the parameters of the contact model for the DEM taking into account the cohesive/water-bridge was performed on various agricultural grains using this measurement tool. The modified DEM model was compared and validated against the test results. With the newly developed model and procedure for determination of DEM parameters, we could reproduce the high compacted soil behavior and reaction forces both qualitatively and quantitatively for the soil conditions and wedge shapes used in this study. Moreover, the effect of wedge shape on soil behavior and reaction force was well represented with the same parameters. During the research we made use of the commercial PFC3D to analyze soil tillage implements. An investigation was made of three different head drillers. A comparison of three commonly used soil tillage systems was completed, such as moldboard plow, disc plow and chisel plow. It can be concluded that the soil condition after plowing by the specific implement can be predicted by the DEM model. The chisel plow is the most economic tool for increasing soil porosity. The moldboard is the best tool for soil manipulation. It can be concluded that the discrete element simulation can be used as a reliable engineering tool for soil-implement interaction quantitatively and qualitatively.
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Samach, Alon, Douglas Cook, and Jaime Kigel. Molecular mechanisms of plant reproductive adaptation to aridity gradients. United States Department of Agriculture, January 2008. http://dx.doi.org/10.32747/2008.7696513.bard.
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Annual plants have developed a range of different mechanisms to avoid flowering (exposure of reproductive organs to the environment) under adverse environmental conditions. Seasonal environmental events such as gradual changes in day length and temperature affect the timing of transition to flowering in many annual and perennial plants. Research in Arabidopsis and additional species suggest that some environmental signals converge on transcriptional regulation of common floral integrators such as FLOWERING LOCUS T (FT). Here we studied environmental induction of flowering in the model legume Medicago truncatula. Similarly to Arabidopsis, the transition to flowering in M. truncatula is hastened by long photoperiods and long periods of vernalization (4°C for 2-3 weeks). Ecotypes collected in Israel retain a vernalization response even though winter temperatures are way above 4°C. Here we show that this species is also highly responsive (flowers earlier) to mild ambient temperatures up to 19°C simulating winter conditions in its natural habitat. Physiological experiments allowed us to time the transition to flowering due to low temperatures, and to compare it to vernalization. We have made use of natural variation, and induced mutants to identify key genes involved in this process, and we provide here data suggesting that an FT gene in M.truncatula is transcriptionally regulated by different environmental cues. Flowering time was found to be correlated with MtFTA and MtFTB expression levels. Mutation in the MtFTA gene showed a late flowering phenotype, while over-expressing MtFTA in Arabidopsis complemented the ft- phenotype. We found that combination of 4°C and 12°C resulted in a synergistic increase in MtFTB expression, while combining 4°C and long photoperiods caused a synergistic increase in MtFTA expression. These results suggest that the two vernalization temperatures work through distinct mechanisms. The early flowering kalil mutant expressed higher levels of MtFTA and not MtFTB suggesting that the KALIL protein represses MtFTA specifically. The desert ecotype Sde Boker flowers earlier in response to short treatments of 8-12oc vernalization and expresses higher levels of MtFTA. This suggests a possible mechanism this desert ecotype developed to flower as fast as possible and finish its growth cycle before the dry period. MtFTA and FT expression are induced by common environmental cues in each species, and expression is repressed under short days. Replacing FT with the MtFTA gene (including regulatory elements) caused high MtFTA expression and early flowering under short days suggesting that the mechanism used to repress flowering under short days has diversified between the two species.The circadian regulated gene, GIGANTEA (GI) encodes a unique protein in Arabidopsis that is involved in flowering mechanism. In this research we characterized how the expression of the M.truncatula GI ortholog is regulated by light and temperature in comparison to its regulation in Arabidopsis. In Arabidopsis GI was found to be involved in temperature compensation to the clock. In addition, GI was found to be involved in mediating the effect of temperature on flowering time. We tested the influence of cold temperature on the MtGI gene in M.truncatula and found correlation between MtGI levels and extended periods of 12°C treatment. MtGI elevation that was found mostly after plants were removed from the cold influence preceded the induction of MtFT expression. This data suggests that MtGI might be involved in 12°C cold perception with respect to flowering in M.truncatula. GI seems to integrate diverse environmental inputs and translates them to the proper physiological and developmental outputs, acting through several different pathways. These research enabled to correlate between temperature and circadian clock in M.truncatula and achieved a better understanding of the flowering mechanism of this species.
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Meir, Shimon, Michael Reid, Cai-Zhong Jiang, Amnon Lers, and Sonia Philosoph-Hadas. Molecular Studies of Postharvest Leaf and Flower Abscission. United States Department of Agriculture, 2005. http://dx.doi.org/10.32747/2005.7696523.bard.
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Original objectives: Understanding the regulation of abscission competence by exploring the nature and function of auxin-related gene expression changes in the leaf and pedicelAZs of tomato (as a model system), was the main goal of the previously submitted proposal. We proposed to achieve this goal by using microarray GeneChip analysis, to identify potential target genes for functional analysis by virus-induced gene silencing (VIGS). To increase the potential of accomplishing the objectives of the previously submitted proposal, we were asked by BARD to show feasibility for the use of these two modern techniques in our abscission system. Thus, the following new objectives were outlined for the one-year feasibility study: 1.to demonstrate the feasibility of the VIGS system in tomato to perform functional analysis of known abscission-related genes; 2. to demonstrate that by using microarray analysis we can identify target genes for further VIGS functional analysis. Background to the topic: It is a generally accepted model that auxin flux through the abscission zone (AZ) prevents organ abscission by rendering the AZ insensitive to ethylene. However, the molecular mechanisms responsible for acquisition of abscission competence and the way in which the auxin gradient modulates it are still unknown. Understanding this basic stage of the abscission process may provide us with future tools to control abscission for agricultural applications. Based on our previous study, performed to investigate the molecular changes occurring in leaf and stem AZs of MirabillisJalapaL., we have expanded our research to tomato, using genomic approaches that include modern techniques for gene discovery and functional gene characterization. In our one-year feasibility study, the US team has established a useful system for VIGS in tomato, using vectors based on the tobacco rattle virus (TRV), a Lcreporter gene for silencing (involved in regulation of anthocyanin biosynthesis), and the gene of interest. In parallel, the Israeli team has used the newly released Affymetrix Tomato GeneChip to measure gene expression in AZ and non-AZ tissues at various time points after flower removal, when increased sensitivity to ethylene is acquired prior to abscission (at 0-8 h), and during pedicelabscission (at 14 h). In addition, gene expression was measured in the pedicel AZ pretreated with the ethylene action inhibitor, 1-methylcyclopropene (1-MCP) before flower removal, to block any direct effects of ethylene. Major conclusions, solutions and achievements: 1) The feasibility study unequivocally established that VIGS is an ideal tool for testing the function of genes with putative roles in abscission; 2) The newly released Affymetrix Tomato GeneChip was found to be an excellent tool to identify AZ genes possibly involved in regulation and execution of abscission. The VIGS-based study allowed us to show that TAPG, a polygalacturonase specifically associated with the tomato AZ, is a key enzyme in the abscission process. Using the newly released Affymetrix Tomato GeneChip we have identified potential abscission regulatory genes as well as new AZ-specific genes, the expression of which was modified after flower removal. These include: members of the Aux/IAAgene family, ethylene signal transduction-related genes, early and late expressed transcription factors, genes which encode post-translational regulators whose expression was modified specifically in the AZ, and many additional novel AZ-specific genes which were previously not associated with abscission. This microarray analysis allowed us to select an initial set of target genes for further functional analysis by VIGS. Implications: Our success in achieving the two objectives of this feasibility study provides us with a solid basis for further research outlined in the original proposal. This will significantly increase the probability of success of a full 3-year project. Additionally, our feasibility study yielded highly innovative results, as they represent the first direct demonstration of the functional involvement of a TAPG in abscission, and the first microarray analysis of the abscission process. Using these approaches we could identify a large number of genes involved in abscission regulation, initiation and execution, and in auxin-ethylene cross-talk, which are of great importance, and could enable their potential functional analysis by VIGS.
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Philosoph-Hadas, Sonia, Peter Kaufman, Shimon Meir, and Abraham Halevy. Signal Transduction Pathway of Hormonal Action in Control and Regulation of the Gravitropic Response of Cut Flowering Stems during Storage and Transport. United States Department of Agriculture, October 1999. http://dx.doi.org/10.32747/1999.7695838.bard.
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Original objectives: The basic goal of the present project was to increase our understanding of the cellular mechanisms operating during the gravitropic response of cut flowers, for solving their bending problem without affecting flower quality. Thus, several elements operating at the 3 levels o the gravity-induced signal transduction pathway, were proposed to be examined in snapdragon stems according to the following research goals: 1) Signaling: characterize the signal transduction pathway leading to the gravitropic response, regarding the involvement of [Ca2+]cyt as a mediator of IAA movement and sensitivity to auxin. 2) Transduction by plant hormones: a) Examine the involvement of auxin in the gravitropic response of flower stems with regard to: possible participation of auxin binding protein (ABP), auxin redistribution, auxin mechanism of action (activation of H+-ATPase) mediation by changes in [Ca2+]cyt and possible regulation of auxin-induced Ca2+ action b: calmodulin-activated or Ca2+-activated protein kinases (PK). b) Examine the involvement of ethylene in the gravitropic response of flower stems with regard to auxin-induced ethylene production and sensitivity of the tissue to ethylene. 3) Response: examine the effect of gravistimulation on invertase (associated with growth and elongation) activity and invertase gene expression. 4) Commercial practice: develop practical and simple treatments to prevent bending of cut flowers grown for export. Revisions: 1) Model systems: in addition to snapdragon (Antirrhinum majus L.), 3 other model shoe systems, consisting of oat (Avena sativa) pulvini, Ornithogalun 'Nova' cut flowers and Arabidopsis thaliana inflorescence, were targeted to confirm a more general mechanism for shoot gravitropism. 2 Research topics: the involvement of ABP, auxin action, PK and invertase in the gravitropic response of snapdragon stems could not be demonstrated. Alternatively, the involvement in the gravity signaling cascade of several other physiological mediators apart of [Ca2+]cyt such as: IP3, protein phosphorylation and actin cytoskeleton, was shown. Additional topics introduced: starch statolith reorientation, differential expression of early auxin responsive genes, and differential shoot growth. Background to the topic: The gravitropic bending response of flowering shoots occurring upon their horizontal placement during shipment exhibits a major horticultural problem. In spite of extensive studies in various aboveground organs, the gravitropic response was hardly investigated in flowering shoots. Being a complex multistep process that requires the participation of various cellular components acting in succession or in parallel, analysis of the negative gravitropic response of shoot includes investigation of signal transduction elements and various regulatory physiological mediators. Major achievements: 1) A correlative role for starch statoliths as gravireceptors in flowering shoot was initially established. 2) Differentially phosphorylated proteins and IP3 levels across the oat shoe pulvini, as well as a differential appearance of 2 early auxin-responsive genes in snapdragon stems were all detected within 5-30 minutes following gravistimulation. 3) Unlike in roots, involvement of actin cytoskeleton in early events of the gravitropic response of snapdragon shoots was established. 4) An asymmetric IAA distribution, followed by an asymmetric ethylene production across snapdragon stems was found following gravistimulation. 5) The gravity-induced differential growth in shoots of snapdragon was derived from initial shrinkage of the upper stem side and a subsequent elongation o the lower stem side. 6) Shoot bending could be successfully inhibited by Ca2+ antagonists (that serve as a basis for practical treatments), kinase and phosphatase inhibitors and actin-cytoskeleton modulators. All these agents did not affect vertical growth. The essential characterization of these key events and their sequence led us to the conclusion that blocking gravity perception may be the most powerful means to inhibit bending without hampering shoot and flower growth after harvest. Implications, scientific and agriculture: The innovative results of this project have provided some new insight in the basic understanding of gravitropism in flower stalks, that partially filled the gap in our knowledge, and established useful means for its control. Additionally, our analysis has advanced the understanding of important and fundamental physiological processes involved, thereby leading to new ideas for agriculture. Gravitropism has an important impact on agriculture, particularly for controlling the bending of various important agricultural products with economic value. So far, no safe control of the undesired bending problem of flower stalks has been established. Our results show for the first time that shoot bending of cut flowers can be inhibited without adverse effects by controlling the gravity perception step with Ca2+ antagonists and cytoskeleton modulators. Such a practical benefit resulting from this project is of great economic value for the floriculture industry.
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Reconnaissance surficial geology, Blackwater Lake, Northwest Territories, NTS 96-B. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/313108.
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This new surficial geology map product represents the conversion of Open File 125, Blackwater Lake (Monroe, 1972) and its legend, using the Geological Survey of Canada's Surficial Data Model (SDM version 2.3.14) (Deblonde et al., 2018). All geoscience knowledge and information from Open File 125, Blackwater Lake that conformed to the current SDM were maintained during the conversion process. Supplementary legacy information (descriptive notes and extended legend) on the original map is not included here. The purpose of converting legacy map data to a common science language and common legend is to enable and facilitate the efficient digital compilation, interpretation, management, and dissemination of geological map information in a structured and consistent manner. This provides an effective knowledge-management tool designed around a geodatabase that can expand, following the type of information to appear on new surficial geology maps.
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Surficial geology, Kakisa River, Northwest Territories, NTS 85-D. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/308493.
Full textAbstract:
This new surficial geology map product represents the conversion of Preliminary Map 14-1978 (Rutter and Boydell, 1979) and its legend, using the Geological Survey of Canada's Surficial Data Model (SDM version 2.3.14) (Deblonde et al., 2018). All geoscience knowledge and information from Preliminary Map 14-1978 that conformed to the SDM were maintained during the conversion process. Additional material on the original map, consisting of an extended legend, is not included here. Supplementary, limited legacy information was added to complement the converted geoscience data. This consists of drillhole and stratigraphic data (Rutter et al., 1973). It is identified in the accompanying geodatabase. The purpose of converting legacy map data to a common science language and common legend is to enable and facilitate the efficient digital compilation, interpretation, management, and dissemination of geological map information in a structured and consistent manner. This provides an effective knowledge-management tool designed around a geodatabase that can expand, following the type of information to appear on new surficial geology maps.
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Reconnaissance surficial geology, Sambaa K'e, Northwest Territories, NTS 95-A. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/311228.
Full textAbstract:
This new surficial geology map product represents the conversion of Preliminary Map 16-1978 (Rutter et al., 1980) and its legend, using the Geological Survey of Canada's Surficial Data Model (SDM version 2.3.14) (Deblonde et al., 2018). All geoscience knowledge and information from Preliminary Map 16-1978 that conformed to the current SDM were maintained during the conversion process. Additional material on the original map, consisting of an extended legend, is not included here. Supplementary, limited legacy information was added to complement the converted geoscience data. This consists of drillhole and stratigraphic data (Rutter et al., 1973). It is identified in the accompanying geodatabase. The purpose of converting legacy map data to a common science language and common legend is to enable and facilitate the efficient digital compilation, interpretation, management, and dissemination of geological map information in a structured and consistent manner. This provides an effective knowledge-management tool designed around a geodatabase that can expand, following the type of information to appear on new surficial geology maps.
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DYNAMIC ANALYSIS OF LONG-SPAN TRANSMISSION TOWERLINE SYSTEM UNDER DOWNBURST. The Hong Kong Institute of Steel Construction, August 2022. http://dx.doi.org/10.18057/icass2020.p.068.
Full textAbstract:
The extreme wind loads have caused enormous structural failures around the world, especially in high-rise flexible steel structures such as transmission towers. However, most of the design criteria discussed in the code are for extended pressure system (EPS). Due to the action of downburst, the structure may be damaged by the failure of local members, which may further lead to the collapse of transmission tower. In this paper, a long-span transmission tower-line system project with a span of 2500m and a main tower height of 272m is taken as the research object. The focus is on the dynamic response of suspension tower under the action of downburst. First, the simulation process of downburst wind field and the calculation criteria of wind load are introduced. Second, the whole tower-line system is simulated with refined finite element model, which includes two suspension towers, four anchor towers and other elements. The wind-induced vibration response of the structure is calculated by numerical simulation. Finally, the possible failure modes and bearing characteristics of the tower line system under downburst are obtained, which provides reference for engineering design.