finite strain elastoplasticity for the simulation of quasistatic and transient dynamic processes.docx

1、finite strain elastoplasticity for the simulation of quasistatic and transient dynamic processes951Distributed Pushpull Estimation for node localization in wireless sensor networksOriginal Research ArticleJournal of Parallel and Distributed Computing, Volume 71, Issue 3, March 2011, Pages 471-484Vie

2、t-Hung Dang, Viet-Duc Le, Young-Koo Lee, Sungyoung LeeClose preview| Related articles|Related reference work articles AbstractAbstract | Figures/TablesFigures/Tables | ReferencesReferences AbstractA great deal of research achievements on localization in wireless sensor networks (WSNs) has been obtai

3、ned in recent years. Nevertheless, its interesting challenges in terms of cost-reduction, accuracy improvement, scalability, and distributed ability design have led to the development of a new algorithm, the Pushpull Estimation (PPE). In this algorithm, the differences between measurements and curre

4、nt calculated distances are modeled into forces, dragging the nodes close to their actual positions. Based on very few known-location sensors or beacons, PPE can pervasively estimate the coordinates of many unknown-location sensors. Each unknown-location sensor, with given pair-wise distances, could

5、 independently estimate its own position through remarkably uncomplicated calculations. Characteristics of the algorithm are examined through analyses and simulations to demonstrate that it has advantages over those of previous works in dealing with the above challenges.Article Outline1. Introductio

6、n 1.1. Range-based and range-free data1.2. Centralized and decentralized methodologies1.3. Multilateration and successive refinement manner2. Related work3. Pushpull Estimation (PPE) 3.1. Annotation and description of PPE3.2. PPEs convergence analysis3.3. Necessity of PPEs phases3.4. Distributed abi

7、lity and scalability3.5. De-biasing function and RSS scheme3.6. Details of PPE4. Experiment results and discussions 4.1. Verifying the convergence of PPE4.2. Necessity of the refinement phase when the distance error is proportional to the real range4.3. Communication reduction4.4. Comparison to MLE

8、and dwMDS 4.4.1. Measurement error proportional to the real distance case4.4.2. Log-normal distribution for the measurement error case5. ConclusionsAcknowledgementsAppendix. AppendixMain parametersReferencesVitaePurchase$ 41.95Research highlights Pushpull Estimation (PPE) models the errors between m

9、easurements and current calculated distances into forces to move the nodes to their better estimated positions. PPE is a robust distributed algorithm with low-cost communication and computation. PPE can deal with any noise model as long as the measurement is unbiased or a de-biasing function is foun

10、d. PPE gives better performance than that of previous works especially when the measurement error is proportional to the real distance.952Medical Record Review: Methodological ConsiderationsAnnals of Epidemiology, Volume 17, Issue 9, September 2007, Page 735L.L. Engel, C.A. Henderson, A. ColantonioC

11、lose preview| Related articles|Related reference work articles AbstractAbstract PurposeMedical chart or record review (MRR) is commonly used in epidemiological studies. However, there is a dearth of literature summarizing the most methodologically rigorous way to conduct this type of retrospective r

12、esearch. The purpose of this paper is to present a) guidelines concerning the development and implementation of a MRR based on a thorough literature review and b) methodological issues related to MRR within the context of a work-related traumatic brain injury (wrTBI) surveillance and prevention stud

13、y involving MRR. MethodsA comprehensive literature review regarding MRR methodological considerations was conducted. Key words including medical, chart, record, retrospective, review, method(s) and methodology were used within various databases such as Ovid, CINAHL, scholars-portal, PubMed, and Medl

14、ine. The principles obtained from the literature were applied to a MRR reliability study concerning workers who sustained work related injuries, primarily wrTBI, and who were assessed at a multi-disciplinary neurology service in Ontario, Canada within the years 1998 & 1999. This MRR was designed to

15、abstract variables related to pre-injury and incident related person, occupation and environment factors, and post-injury sequelae related to wrTBI to inform injury prevention strategies. ResultsThe authors developed and utilized a model of MRR methodology, the MRR-Conduction Model, which outlines t

16、he relationships between different entities involved in a MRR. These entities include the investigator, the data abstractor(s), the data source, the abstraction tool, and the abstraction manual. Within each entity, guidelines were found that aided in creating a more feasible, effective and reliable

17、MRR. These guidelines and their application to improved MRR reliability will be presented. ConclusionMRR is often perceived as an easy and potentially expedient data collection method however, creating an effective MRR takes planning and time. The MRR-Conduction Model facilitates understanding of th

18、e entities and relationships involved in using MRR methodologies.Purchase$ 31.50953Recovery in aqueous two-phase systems of nanoparticulates applied as surrogate mimics for viral gene therapy vectorsOriginal Research ArticleJournal of Chromatography B: Biomedical Sciences and Applications, Volume 74

19、3, Issues 1-2, 23 June 2000, Pages 409-419Genevive M.F Braas, Simon G Walker, Andrew LyddiattClose preview| Related articles|Related reference work articles AbstractAbstract | Figures/TablesFigures/Tables | ReferencesReferences AbstractThe partition behaviour of nanoparticulate inclusion bodies (IBs

20、) in various states of purity were evaluated as surrogate mimics for adenovirus and retrovirus products in method scouting experiments with aqueous two-phase systems (ATPSs). Such systems are proposed for effective, high capacity downstream processing (DSP) of viral gene therapy vectors. Studies wit

21、h mimics provided simple descriptions of particle partition which may benefit the field of vector DSP, where experimental material is rarely available for research and development in quantities and concentrations representative of clinical manufacture. Polyethylene glycol (PEG)salt and PEGdextran AT

22、PSs were screened in respect of the partition recovery of IBs from crude feedstocks. Select candidate systems were similarly evaluated with limited preparations of adenovirus and retrovirus with respect to fractional recoveries of infectivity and particle number. Maintenance of the former was good,

23、whilst comparison of the latter with quantitation of unwashed and washed IBs indicated poor utilisation of the inherent high capacities of ATPSs in viral experiments. This is discussed in the context of the volumetric throughput and capacities reported in the literature for the recovery of infective

24、 viruses in ultracentrifugation and chromatographic processes.Article Outline1. Introduction2. Experimental 2.1. Production of inclusion body preparations2.2. Harvest of adenoviruses2.3. Quantitation of viral particles by bicinchoninic acid assay2.4. Plaque assay2.5. Luciferase assay2.6. Aqueous two

25、-phase systems2.7. Sodium dodecyl sulphatepolyacrylamide gel electrophoresis (SDSPAGE)3. Results and discussion 3.1. Partition of inclusion bodies3.2. Partition of adenoviruses3.3. Comparison between washed inclusion bodies and adenovirus partition behaviour3.4. Partition of retroviruses3.5. Compari

26、son between the partition of non-washed inclusion bodies and retroviruses in ATPSs4. Conclusions5. AbbreviationsAcknowledgementsReferencesPurchase$ 31.50954Enhancing nurse carer partnerships: A self-directed learning approachOriginal Research ArticleNurse Education in Practice, Volume 6, Issue 4, Ju

27、ly 2006, Pages 224-231Michelle Cleary, Adele FreemanClose preview| Related articles|Related reference work articles AbstractAbstract | Figures/TablesFigures/Tables | ReferencesReferences SummaryFor many mental health consumers living in the community, friends or relatives provide day-to-day care and

28、 support. Consequently, mental health nurses are increasingly required to work collaboratively with carers and integrate their perspective into patient care. Despite this, research suggests that communication between healthcare workers and carers is poor and training in imparting information to care

29、rs effectively and encouraging their involvement has been negligible. In recognition of this, it was deemed important to develop a self-directed learning programme for mental health nurses who wish to enhance their skills in carer partnership. Many nurses are interested in developing their clinical

30、leadership abilities and this programme provides an opportunity to demonstrate expertise through portfolio development in a key area of healthcare delivery. This innovative programme provides educative opportunities to nurses who are frequently busy, work rotating rosters, and have competing demands

31、 upon their time. It is open to all nurses irrespective of position or setting and utilises a purpose-designed workbook based on contemporary learning principles. This approach is not without its limitations however. In this paper we share our experiences and hope that it may inform others planning innovations to develop practice through education.Article OutlineIntroductionBackgroundMethods The workbookParticipantsResultsDiscussionConclusionsAcknowledgementsReferencesPurchase$ 31.50955Investigation into the affectivity on cutaneous blood perfusion of different application time lengt