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Journal articles on the topic 'Complete transition'

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Published: 4 June 2021
Last updated: 19 February 2022

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1

Sayadi, Taraneh, Curtis W. Hamman, and Parviz Moin. "Direct numerical simulation of complete H-type and K-type transitions with implications for the dynamics of turbulent boundary layers." Journal of Fluid Mechanics 724 (April 29, 2013): 480–509. http://dx.doi.org/10.1017/jfm.2013.142.

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AbstractThe onset and development of turbulence from controlled disturbances in compressible ($\mathit{Ma}= 0. 2$), flat-plate boundary layers is studied by direct numerical simulation. We have validated the initial disturbance development, confirmed that H- and K-regime transitions were reproduced and, from these starting points, we carried these simulations beyond breakdown, past the skin-friction maximum and to higher Reynolds numbers than investigated before to evaluate how these two flow regimes converge towards turbulence and what transitional flow structures embody the statistics and mean dynamics of developed turbulence. We show that H- and K-type breakdowns both relax toward the same statistical structure typical of developed turbulence at high Reynolds number immediately after the skin-friction maximum. This threshold marks the onset of self-sustaining mechanisms of near-wall turbulence. At this point, computed power spectra exhibit a decade of Kolmogorov inertial subrange; this is further evidence of convergence to equilibrium turbulence at the late stage of transition. Here, visualization of the instantaneous flow structure shows numerous, tightly packed hairpin vortices (Adrian, Phys. Fluids, vol. 19, 2007, 041301). Strongly organized coherent hairpin structures are less perceptible farther downstream (at higher Reynolds numbers), but the flow statistics and near-wall dynamics are the same. These structurally simple hairpin-packet solutions found in the very late stages of H- and K-type transitions obey the statistical measurements of higher-Reynolds-number turbulence. Comparison with the bypass transition of Wu & Moin (Phys. Fluids, vol. 22, 2010, pp. 85–105) extends these observations to a wider class of transitional flows. In contrast to bypass transition, the (time- and spanwise-averaged) skin-friction maximum in both H- and K-type transitions overshoots the turbulent correlation. Downstream of these friction maxima, all three skin-friction profiles collapse when plotted versus the momentum-thickness Reynolds number, ${\mathit{Re}}_{\theta } $. Mean velocities, turbulence intensities and integral parameters collapse generally beyond ${\mathit{Re}}_{\theta } = 900$ in each transition scenario. Skin-friction maxima, organized hairpin vortices and the onset of self-sustaining turbulence found in controlled H- and K-type transitions are, in many dynamically important respects, similar to development of turbulent spots seen by Park et al. (Phys. Fluids, vol. 24, 2012, 035105). A detailed statistical comparison demonstrates that each of these different transition scenarios evolve into a unique force balance characteristic of higher-Reynolds-number turbulence (Klewicki, Ebner & Wu, J. Fluid Mech., vol. 682, 2011, pp. 617–651). We postulate that these dynamics of late-stage transition as manifested by hairpin packets can serve as a reduced-order model of high-Reynolds-number turbulent boundary layers.
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2

ZHOU, JUNPING, PING HUANG, MINGHAO YIN, and CHUNGUANG ZHOU. "PHASE TRANSITIONS OF EXPSPACE-COMPLETE PROBLEMS." International Journal of Foundations of Computer Science 21, no. 06 (December 2010): 1073–88. http://dx.doi.org/10.1142/s012905411000774x.

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This paper explores the phase transitions of the EXPSPACE-complete problems, which mainly focus on the conformant planning problems. The research presents two conformant planning algorithms—CONFORMANT PLAN-NONEXISTENCE algorithm and CONFORMANT PLAN-EXISTENCE algorithm. By analyzing the features of the two algorithms, the phase transition area of the conformant planning problems is obtained. If the number of the operators isn't greater than θub, the CONFORMANT PLAN-NONEXISTENCE algorithm can prove that nearly all the conformant planning instances have no solution. If the number of the operators isn't lower than θlb, the CONFORMANT PLAN-EXISTENCE algorithm can prove that nearly all the conformant planning instances have solutions. The results of the experiments show that there exist phase transitions from a region where almost all the conformant planning instances have no solution to a region where almost all the conformant planning instances have solutions.
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Jaccard, D., A. T. Holmes, G. Behr, Y. Inada, and Y. Onuki. "Superconductivity of ε-Fe: complete resistive transition." Physics Letters A 299, no. 2-3 (July 2002): 282–86. http://dx.doi.org/10.1016/s0375-9601(02)00725-9.

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4

LIU, ZONGHUA. "INDEPENDENT-DEPENDENT TRANSITION BEFORE COMPLETE OR GENERALIZED SYNCHRONIZATION." International Journal of Modern Physics B 21, no. 23n24 (September 30, 2007): 4054–58. http://dx.doi.org/10.1142/s0217979207045190.

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A novel phase transition, independent-dependent transition, is revealed in the coupling regime before the complete or generalized synchronization. The coupled chaotic behaviors will change from an approximately independent phase to a mutual correlated phase when coupling passes through the dependent transition point.
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5

Szerb, László, and William N. Trumbull. "The Development of Entrepreneurship in the European Transition Countries: Is Transition Complete?" Strategic Change 25, no. 2 (March 2016): 109–29. http://dx.doi.org/10.1002/jsc.2051.

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6

Xue, Xiaofeng. "Phase transition for SIR model with random transition rates on complete graphs." Frontiers of Mathematics in China 13, no. 3 (April 28, 2018): 667–90. http://dx.doi.org/10.1007/s11464-018-0698-8.

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7

Alstrøm, Preben, Bo Christiansen, and Mogens T. Levinsen. "Nonchaotic Transition from Quasiperiodicity to Complete Phase Locking." Physical Review Letters 61, no. 15 (October 10, 1988): 1679–82. http://dx.doi.org/10.1103/physrevlett.61.1679.

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8

Lee, Hangkyu, Irith Pomeranz, and Sudhakar M. Reddy. "On Complete Functional Broadside Tests for Transition Faults." IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems 27, no. 3 (March 2008): 583–87. http://dx.doi.org/10.1109/tcad.2008.915531.

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9

Colglazier, Elizabeth, Angelica J. Ng, Claire Parker, Hythem Nawaytou, and Jeffrey R. Fineman. "Safety and Tolerability of a Rapid Transition From Intravenous Treprostinil to Oral Selexipag in Three Adolescent Patients With Pulmonary Arterial Hypertension." Journal of Pediatric Pharmacology and Therapeutics 26, no. 5 (June 28, 2021): 512–16. http://dx.doi.org/10.5863/1551-6776-26.5.512.

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There is limited published experience with transitioning pediatric patients from parenteral treprostinil to oral selexipag therapy. In addition, published transitions have typically been protracted, taking several weeks to complete. We present a case series of 3 adolescent patients who were transitioned from parenteral treprostinil to oral selexipag over a 5- to 7-day period. Their clinical courses leading up to the transitions are summarized and their outcomes are described. The 3 patients were successfully rapidly transitioned during an inpatient hospitalization without any observed adverse events or prostacyclin-related side effects. We conclude that when indicated rapid transition of parenteral to oral prostacyclin therapy may be performed safely in adolescents in an inpatient setting.
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10

Desperak, Iza. "Gender Dimension Of Waves Of Democratization: Abortion And Reproductive Right Between Eastern And Western Europe." European Scientific Journal, ESJ 12, no. 1 (January 29, 2016): 56. http://dx.doi.org/10.19044/esj.2016.v12n1p56.

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This paper focuses on the gender dimension of the transition processes of Western and Eastern Europe, which is viewed from the perspective of democratization processes, i. e. waves of democratization. Adding gender perspective to the analysis, results in the reconceptualization of the democratic approach to the transitional processes. As proposed by Charles Tilly, it requires an alternative approach such as de-democratisation. Some examples of countries with a chosen Western and Eastern European transitions system include: Spain, Portugal, Poland, and Romania. During the last fifty years, they showed how politics concerning reproductive rights, especially on the issue of abortion, differentiate between the real shape and the direction of transition processes which leads either to democratization or its complete opposite.
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11

Cheng, Hai-Ping, Xiuling Li, Robert L. Whetten, and R. Stephen Berry. "Complete statistical thermodynamics of the cluster solid-liquid transition." Physical Review A 46, no. 2 (July 1, 1992): 791–800. http://dx.doi.org/10.1103/physreva.46.791.

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12

Li, Yanhong, Reinhard Lipowsky, and Rumiana Dimova. "Transition from Complete to Partial Wetting within Membrane Compartments." Journal of the American Chemical Society 130, no. 37 (September 17, 2008): 12252–53. http://dx.doi.org/10.1021/ja8048496.

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13

Das, T., and S. Chakraborty. "A generalized Langevin formalism of complete DNA melting transition." EPL (Europhysics Letters) 83, no. 4 (August 2008): 48003. http://dx.doi.org/10.1209/0295-5075/83/48003.

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14

Srivastava, Praveen Ranjan, Saurav Singh Naruka, Afaque Alam, Nikhil Agarwal, and Vaibhav Mukeshkumar Shah. "Software Coverage Analysis." International Journal of Applied Evolutionary Computation 3, no. 3 (July 2012): 62–77. http://dx.doi.org/10.4018/jaec.2012070104.

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Requirements of the desired software product can be translated into state transition diagram or other UML diagrams. To verify the complete coverage of software requirements, the proposed Ant based approach generates non-repetitive transitions from the input state diagram. This approach has less redundant transitions and also gives uncovered transition in successive paths instead of giving whole redundant path again and again. The paper also contains a comparison between already existing approaches with respect to some parameters like coverage, redundancy, total number of transitions.
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15

Sharif, Jalil-Ahmad. "Transfer and transition referrals of patients with intellectual disability from children's services to adult community learning disability teams." BJPsych Open 7, S1 (June 2021): S103. http://dx.doi.org/10.1192/bjo.2021.307.

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AimsThe audit aimed to assess if patients under the care of children's services in Wessex were transferred at the appropriate age and whether transition referrals to Community Learning Disability teams (CTLD) occurred timely. It also aimed to look at how many patients underwent transitions in a three month period, and if their transition support plan (TSP) was completed. A transition support plan should include chronological information on psychopharmacology, psychotherapy, and social support measures. Patients should be referred between the ages of 17–19 but require a justification after 18 years of age.MethodThe BI team was contacted to provide all IDs for patients referred within a three month period between the ages of 17–19. The BI team provided 42 patients with their ID. Patients discharged from services within a short time span were excluded for the following reason: inappropriate referral (9pts), discharged after 1st assessment (6pts), internal discussion (6pts), only referred to Autism team (4pts), moved out of area (1pts). From the initial 42 patients, 16 patients were analysed using the collection tool.Result4/16 had a TSP, and only two had a complete TSP and transitioned in another trust and were inter-team referrals.CAMHS services referred 1/16 patients.Psychotropic medication was prescribed to 12/16 prior to or on time of referral, but only two patients had a complete psychotropic medication history.8/16 patients' referral was commenced prior to their 18th birthday, and no information was provided for delay in transfer.Health records did mention psychotherapy, but apart from 2/16 TSP records, no additional information was available on the modality.ConclusionPatients with Intellectual Disability face challenges when transferring from children to adult services. Insufficient referral information may have a detrimental impact on patients wellbeing and long-term care.Access to a patient's chronological journey through the different children's services allows Adult CTLD health professionals to provide effective care. Historical psycho-social and pharmacological interventions provide a reference point for future interventions.Concerns included: limited information on most TSP regarding psycho-social and psychotropic treatments, lack of access to CAMHS/CHYPS paperwork and ineffective inter-trust communication for transition patients.This project highlighted the average number of transition cases in 3 months. It led to changes to the transition pathway, as awareness was raised in trust and CCG meetings to improve patient outcome. CTLD created the new role of transition facilitators to support children's services. They sit in meetings before patients transition referrals.
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16

MAYER, CHRISTIAN S. J., DOMINIC A. VON TERZI, and HERMANN F. FASEL. "Direct numerical simulation of complete transition to turbulence via oblique breakdown at Mach 3." Journal of Fluid Mechanics 674 (January 13, 2011): 5–42. http://dx.doi.org/10.1017/s0022112010005094.

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A pair of oblique waves at low amplitudes is introduced in a supersonic flat-plate boundary layer at Mach 3. Its downstream development and the concomitant process of laminar to turbulent transition is then investigated numerically using linear-stability theory, parabolized stability equations and direct numerical simulations (DNS). In the present paper, the linear regime is studied first in great detail. The focus of the second part is the early and late nonlinear regimes. It is shown how the disturbance wave spectrum is filled up by nonlinear interactions and which flow structures arise and how these structures locally break down to small scales. Finally, the study answers the question whether a fully developed turbulent boundary layer can be reached by oblique breakdown. It is shown that the skin friction develops such as is typical of transitional and turbulent boundary layers. Initially, the skin friction coefficient increases in the streamwise direction in the transitional region and finally decays when the early turbulent state is reached. Downstream of the maximum in the skin friction, the flow loses its periodicity in time and possesses characteristic mean-flow and spectral properties of a turbulent boundary layer. The DNS data clearly demonstrate that oblique breakdown can lead to a fully developed turbulent boundary layer and therefore it is a relevant mechanism for transition in two-dimensional supersonic boundary layers.
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17

Zwicke, Diane L., Ricardo Restrepo-Jaramillo, Hassan Alnuaimat, Kathryn Gordon, Meredith Broderick, Lisa D. Edwards, Andrew Allmon, and Peter J. Leary. "A multicenter retrospective study of patients with pulmonary hypertension transitioned from inhaled to oral treprostinil." Pulmonary Circulation 11, no. 1 (January 2021): 204589402199820. http://dx.doi.org/10.1177/2045894021998203.

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Oral treprostinil has recently been shown to delay disease progression in patients with pulmonary arterial hypertension in a long-term outcomes study. The potential advantages of an oral formulation have resulted in patients transitioning from inhaled to oral treprostinil. The current study reports a retrospective analysis of patients who transitioned from treatment with inhaled to oral treprostinil. A multicenter retrospective chart review was conducted for 29 patients with pulmonary hypertension that transitioned from inhaled to oral treprostinil. Data were collected from inhaled treprostinil initiation and patients were followed until discontinuation of oral treprostinil or the end of the observation period. Persistence was calculated using Kaplan–Meier estimates. Prior to transition to oral treprostinil, patients had received inhaled treprostinil for a median of 643 (IQR: 322–991) days and 52% of patients were New York Heart Association/World Health Organization Functional Class III. For patients that cross-titrated between formulations, the median time to complete the cross titration was 24 (IQR: 1–57) days. At 16- and 24-weeks post-transition, oral treprostinil persistence was 86 and 76%, respectively. Persistence was 59% at 52 weeks post-transition. Clinical stability for the majority of patients at first follow-up post-transition was suggested based on available New York Heart Association/World Health Organization Functional Classification. Transitions from inhaled to oral treprostinil appeared safe and tolerable in the short-term. Additional prospective studies are needed to fully evaluate the safety and efficacy of transitions from inhaled to oral treprostinil.
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18

Yu, Meifang, Jeanne A. Novak, Matthew Ryan Lavery, Brooks R. Vostal, and Julia M. Matuga. "Predicting College Completion Among Students With Learning Disabilities." Career Development and Transition for Exceptional Individuals 41, no. 4 (January 23, 2018): 234–44. http://dx.doi.org/10.1177/2165143417750093.

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The authors analyzed National Longitudinal Transition Study–2 (NLTS2) data to examine the role of high school academic preparation and receipt of postsecondary academic support services (PASS) in predicting college completion among students with learning disabilities. Logistic regression analyses revealed that students who earned a 3.0 grade point average (GPA) in a college preparatory curriculum were more than twice as likely to complete college than those with a similar GPA who did not complete a college preparatory curriculum. Furthermore, among students who completed a college preparatory curriculum, earning a higher GPA and accessing PASS both dramatically increased the likelihood that they would complete college. Results underscore the importance of incorporating a college preparatory curriculum into transition planning for college-bound students with learning disabilities.
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19

Foreman, Amanda L., Jesse A. Fallon, and Joseph S. Moritz. "Cockatiel Transition From a Seed-based to a Complete Diet." Journal of Avian Medicine and Surgery 29, no. 2 (June 2015): 114–19. http://dx.doi.org/10.1647/2013-069.

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20

Ivanov, V. K., G. P. Kopitsa, O. S. Ivanova, A. Ye Baranchikov, K. Pranzas, and S. V. Grigoriev. "Complete inheritance of fractal properties during first-order phase transition." Journal of Physics and Chemistry of Solids 75, no. 2 (February 2014): 296–99. http://dx.doi.org/10.1016/j.jpcs.2013.10.006.

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21

Wang, Wen-Xu, Zhi-Xi Wu, Rui Jiang, Guanrong Chen, and Ying-Cheng Lai. "Abrupt transition to complete congestion on complex networks and control." Chaos: An Interdisciplinary Journal of Nonlinear Science 19, no. 3 (September 2009): 033106. http://dx.doi.org/10.1063/1.3184539.

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22

Bedini, Andrea, Sergio Caracciolo, and Andrea Sportiello. "Phase transition in the spanning-hyperforest model on complete hypergraphs." Nuclear Physics B 822, no. 3 (December 2009): 493–516. http://dx.doi.org/10.1016/j.nuclphysb.2009.07.008.

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23

Watkins, Trevor. "The Neolithic in transition — how to complete a paradigm shift." Levant 45, no. 2 (November 2013): 149–58. http://dx.doi.org/10.1179/0075891413z.00000000022.

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24

Zhang, Xiao-dong, and Zheng-hong Gao. "Numerical discussions on complete empirical correlation in Langtry’s transition model." Applied Mathematics and Mechanics 31, no. 5 (May 2010): 575–84. http://dx.doi.org/10.1007/s10483-010-0505-6.

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25

Koss, Catheryn S. "A Longitudinal Study of Retirement Transition and Advance Directive Completion." Gerontologist 60, no. 6 (January 16, 2020): 1005–10. http://dx.doi.org/10.1093/geront/gnz194.

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Abstract Background and Objectives Advance directives (AD) help to ensure patients’ wishes are honored and contribute to improved end-of-life care. According to normative life course theory, retirement is a significant role change that signals a transition into the third age and its socially prescribed activities. This study tested whether transitioning from work to retirement prompted AD completion. Research Design and Methods The sample included Health and Retirement Study participants who, in 2012, had no ADs and were not completely retired (N = 919). Three waves of data were analyzed using multinomial logistic regression to test associations between retirement transition and advance directive completion. Results By 2014, 21% had completed ADs and another 17% completed them by 2016. Those who completely retired between 2012 and 2014 were almost twice as likely to complete ADs between 2014 and 2016. Graduated increase in level of retirement between 2012 and 2014 was associated with higher odds of new AD possession in 2016, but did not reach statistical significance at p < .05. Discussion and Implications The period following retirement may be an optimal time to encourage patients and clients who have not already done so to complete advance directives.
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26

La Vignera, Sandro, Rosita A. Condorelli, Laura Cimino, Rossella Cannarella, Filippo Giacone, and Aldo E. Calogero. "Early Identification of Isolated Sertoli Cell Dysfunction in Prepubertal and Transition Age: Is It Time?" Journal of Clinical Medicine 8, no. 5 (May 9, 2019): 636. http://dx.doi.org/10.3390/jcm8050636.

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The male transitional phase is of fundamental importance for future fertility. This aspect is largely neglected in clinical practice. This opinion aims to shed light on these issues. The children frequently complete the transition phase with a slight reduction of testicular volume. The system of detecting testicular volume is often inadequate. These patients evidently complete puberty in an incomplete way because they do not reach an adequate testicular volume, albeit in the presence of adequate height and regular secondary sexual characteristics.
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27

Tettamanti, Gianluca, and Morena Casartelli. "Cell death during complete metamorphosis." Philosophical Transactions of the Royal Society B: Biological Sciences 374, no. 1783 (August 26, 2019): 20190065. http://dx.doi.org/10.1098/rstb.2019.0065.

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In insects that undergo complete metamorphosis, cell death is essential for reshaping or removing larval tissues and organs, thus contributing to formation of the adult's body structure. In the last few decades, the study of metamorphosis in Lepidoptera and Diptera has provided broad information on the tissue remodelling processes that occur during larva–pupa–adult transition and made it possible to unravel the underlying regulatory pathways. This review summarizes recent knowledge on cell death mechanisms in Lepidoptera and other holometabolous insects, highlighting similarities and differences with Drosophila melanogaster , and discusses the role of apoptosis and autophagy in this developmental setting. This article is part of the theme issue ‘The evolution of complete metamorphosis'.
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Fichman, Galit, Tom Guterman, Joshua Damron, Lihi Adler-Abramovich, Judith Schmidt, Ellina Kesselman, Linda J. W. Shimon, Ayyalusamy Ramamoorthy, Yeshayahu Talmon, and Ehud Gazit. "Spontaneous structural transition and crystal formation in minimal supramolecular polymer model." Science Advances 2, no. 2 (February 2016): e1500827. http://dx.doi.org/10.1126/sciadv.1500827.

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The association of building blocks into supramolecular polymers allows the fabrication of diverse functional architectures at the nanoscale. The use of minimal assembly units to explore polymer dynamics and phase transitions significantly contributes to the application of polymer physicochemical paradigms in the field of supramolecular polymers. We present a minimal model that displays spontaneous coordinated structural transitions between micro- and nanostructures, hydrogels with nanoscale order, and single crystals. The simple amphiphilic 9-fluorenylmethoxycarbonyl-3,4-dihydroxyphenylalanine (Fmoc-DOPA) modified amino acid undergoes a noninduced transition from spherical assemblies into nanofibrils followed by sol-gel transition, nanotube formation via intermediate assembly, and crystallization within the gel. Notably, the transition kinetics is slow enough to allow both multistage and multiscale characterization of the supramolecular arrangement using electron microscopy, vibrational and circular dichroism spectroscopies, nuclear magnetic resonance, and x-ray crystallography. This minimalistic system is the first comprehensive model for a complete spontaneous structural transition between diverse states governed by distinct molecular interactions.
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29

Çelik, Suat E., and Ayhan Kara. "Complete cranium bifidum without scalp abnormality." Journal of Neurosurgery: Pediatrics 1, no. 3 (March 2008): 258–60. http://dx.doi.org/10.3171/ped/2008/1/3/258.

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✓Cranium bifidum is an unusual lesion in newborns. The majority of previously reported cases have described enlarged parietal foramina with some scalp and other congenital abnormalities. In this report the authors present the first case of complete cranium bifidum without any other anomaly. The cranial defect persisted for 3 years during the follow-up period. No hereditary or familial transition has been observed. The authors conclude that such an extremely rare occurrence of complete cranium bifidum may be a result of a coincidental mutation.
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Calcaianu, George, Mihaela Calcaianu, Matthieu Canuet, Irina Enache, and Romain Kessler. "Withdrawal of long-term epoprostenol therapy in pulmonary arterial hypertension (PAH)." Pulmonary Circulation 7, no. 2 (March 13, 2017): 439–47. http://dx.doi.org/10.1177/2045893217702401.

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Once initiated for pulmonary arterial hypertension (PAH), epoprostenol treatment usually needs to be delivered for an indefinite duration. It is possible that some participants could be transitioned from epoprostenol to oral therapies. We retrospectively evaluated eight PAH participants transitioned from epoprostenol to PAH oral drugs. The criteria for epoprostenol withdrawal were: (1) persistent improvement of clinic and hemodynamic status; (2) stable dose of epoprostenol for the last three months; and (3) the participant’s preference for oral therapy after evaluation of risk-benefit. We evaluated the clinical, functional, and hemodynamic status at baseline, at withdrawal, and after the transition to oral PAH therapy. The transition was completed in all eight participants. Four participants had a complete successful transition (CT) with a stable clinical and hemodynamic course and four participants had a partial successful transition (PT) remaining stable clinically, with a mild hemodynamic worsening, but without need to re-initiate epoprostenol therapy. The four CT participants were treated with epoprostenol for a shorter period of time (CT group: 35 ± 30 versus PT group: 79 ± 49 months, P = 0.08). Mean epoprostenol dosage was lower in the CT group (CT group: 15 ± 1.5 ng/kg/min versus PT group: 24 ± 11 ng/kg/min, P = 0.09). Safe withdrawal of epoprostenol treatment and transition to oral PAH therapy was possible in a small and highly selected group of participants. The majority of these participants had a porto-pulmonary PAH or PAH associated to HIV infection.
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31

Chakraverty, Devasmita, Donna B. Jeffe, and Robert H. Tai. "Transition Experiences in MD–PhD Programs." CBE—Life Sciences Education 17, no. 3 (September 2018): ar41. http://dx.doi.org/10.1187/cbe.17-08-0187.

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MD–PhD training takes, on average, 8 years to complete and involves two transitions, an MD-preclinical to PhD-research phase and a PhD-research to MD-clinical phase. There is a paucity of research about MD–PhD students’ experiences during each transition. This study examined transition experiences reported by 48 MD–PhD students who had experienced at least one of these transitions during their training. We purposefully sampled medical schools across the United States to recruit participants. Semistructured interviews were audio-recorded and transcribed for analysis; items focused on academic and social experiences within and outside their programs. Using a phenomenological approach and analytic induction, we examined students’ transition experiences during their MD–PhD programs. Five broad themes emerged centering on multiple needs: mentoring, facilitating integration with students in each phase, integrating the curriculum to foster mastery of skills needed for each phase, awareness of cultural differences between MD and PhD training, and support. None of the respondents attributed their transition experiences to gender or race/ethnicity. Students emphasized the need for mentoring by MD–PhD faculty and better institutional and program supports to mitigate feelings of isolation and help students relearn knowledge for clinical clerkships and ease re-entry into the hospital culture, which differs substantially from the research culture.
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32

Rayburn, William F. "A More Complete Picture of Reproductive Aging and the Menopause Transition." Obstetrics and Gynecology Clinics of North America 45, no. 4 (December 2018): xiii—xiv. http://dx.doi.org/10.1016/j.ogc.2018.08.002.

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33

Hanold, K., L. G. Moretto, G. F. Peaslee, G. J. Wozniak, D. R. Bowman, M. F. Mohar, and D. J. Morrissey. "Transition from complete to incomplete fusion in asymmetric heavy ion reactions." Physical Review C 48, no. 2 (August 1, 1993): 723–34. http://dx.doi.org/10.1103/physrevc.48.723.

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34

Braunschweig, Holger, Qing Ye, Alfredo Vargas, Rian D. Dewhurst, and Florian Hupp. "Complete and Partial 1,2-Additions across Transition Metal–Boron Double Bonds." Journal of the American Chemical Society 136, no. 27 (June 30, 2014): 9560–63. http://dx.doi.org/10.1021/ja504761f.

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35

Bocci, Federico, Mohit K. Jolly, Satyendra C. Tripathi, Mitzi Aguilar, Samir M. Hanash, Herbert Levine, and José N. Onuchic. "Numb prevents a complete epithelial–mesenchymal transition by modulating Notch signalling." Journal of The Royal Society Interface 14, no. 136 (November 2017): 20170512. http://dx.doi.org/10.1098/rsif.2017.0512.

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Epithelial–mesenchymal transition (EMT) plays key roles during embryonic development, wound healing and cancer metastasis. Cells in a partial EMT or hybrid epithelial/mesenchymal (E/M) phenotype exhibit collective cell migration, forming clusters of circulating tumour cells—the primary drivers of metastasis. Activation of cell–cell signalling pathways such as Notch fosters a partial or complete EMT, yet the mechanisms enabling cluster formation remain poorly understood. Using an integrated computational–experimental approach, we examine the role of Numb—an inhibitor of Notch intercellular signalling—in mediating EMT and clusters formation. We show via an mathematical model that Numb inhibits a full EMT by stabilizing a hybrid E/M phenotype. Consistent with this observation, knockdown of Numb in stable hybrid E/M cells H1975 results in a full EMT, thereby showing that Numb acts as a brake for a full EMT and thus behaves as a ‘phenotypic stability factor' by modulating Notch-driven EMT. By generalizing the mathematical model to a multi-cell level, Numb is predicted to alter the balance of hybrid E/M versus mesenchymal cells in clusters, potentially resulting in a higher tumour-initiation ability. Finally, Numb correlates with a worse survival in multiple independent lung and ovarian cancer datasets, hence confirming its relationship with increased cancer aggressiveness.
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36

Williams, T. Gavin, Nathan J. DeYonker, and Angela K. Wilson. "Hartree-Fock complete basis set limit properties for transition metal diatomics." Journal of Chemical Physics 128, no. 4 (January 28, 2008): 044101. http://dx.doi.org/10.1063/1.2822907.

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37

Flicek, R. C., R. Ramesh, and D. A. Hills. "A complete frictional contact: The transition from normal load to sliding." International Journal of Engineering Science 92 (July 2015): 18–27. http://dx.doi.org/10.1016/j.ijengsci.2015.03.006.

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38

Paiva, Sofia Costa, and Adenilso Simao. "Generation of complete test suites from mealy input/output transition systems." Formal Aspects of Computing 28, no. 1 (December 18, 2015): 65–78. http://dx.doi.org/10.1007/s00165-015-0350-2.

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39

Guloyan, Yu A. "Complete analysis of ionic staining of glasses by transition-metal compounds." Glass and Ceramics 64, no. 5-6 (May 2007): 153–58. http://dx.doi.org/10.1007/s10717-007-0039-y.

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40

Fu, Jixiang, Shing-Tung Yau, and Wubin Zhou. "Complete cscK Metrics on the Local Models of the Conifold Transition." Communications in Mathematical Physics 335, no. 3 (February 27, 2015): 1215–33. http://dx.doi.org/10.1007/s00220-015-2337-5.

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41

Koss, Catheryn. "A Longitudinal Study of Retirement Transition and Advance Directive Completion." Innovation in Aging 4, Supplement_1 (December 1, 2020): 441. http://dx.doi.org/10.1093/geroni/igaa057.1424.

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Abstract Advance directives (AD) help to ensure patients’ wishes are honored and contribute to improved end-of-life care. According to normative life course theory, retirement is a significant role change that signals a transition into the third age and its socially prescribed activities. To the extent that ACP is viewed as something to do when one reaches a more advanced stage in life, retirement may spark recognition that planning for incapacity and the end of life is now personally relevant and appropriate. This study tested whether transitioning from work to retirement prompted AD completion. The sample included Health and Retirement Study participants 65 and older who, in 2012, had no ADs and were not completely retired (N = 919). Retirement was operationalized as both a categorical status and as a multistep process. Three waves of data were analyzed using multinomial logistic regression to test associations between retirement transition and advance directive completion. By 2014, 21% had completed ADs and another 17% completed them by 2016. Those who completely retired between 2012 and 2014 were almost twice as likely to complete ADs between 2014 and 2016. Graduated increase in level of retirement between 2012 and 2014 was associated with higher odds of new AD possession in 2016, but did not reach statistical significance at p < .05. These results suggest the period following retirement may be an optimal time to encourage patients and clients who have not already done so to complete advance directives.
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42

Zhao, S., and W. Cheng. "Transitional relation exploration for typical loess geomorphologic types based on slope spectrum characteristics." Earth Surface Dynamics 2, no. 2 (August 19, 2014): 433–41. http://dx.doi.org/10.5194/esurf-2-433-2014.

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Abstract. Based on the Chinese Geomorphologic Database at 1 : 1 000 000 scales, the distribution of the typical loess geomorphologic types (such as the loess tableland, loess ridge and loess knoll) is acquired in the Loess Plateau of China. Then, based on the SRTM (Shuttle Radar Topography Mission) digital elevation model (DEM) data and topographic analysis methods, the slope spectrums are computed for the typical loess geomorphologic types and their subtypes. Through achieving the tendency line of the slope spectrum and analysing the slope spectrum characteristics of the loess typical geomorphologic types, the transitional relationships are explored: (1) the general rule is that loess tableland transitions to loess ridge, and then to loess knoll. (2) The specific relationships for the subtypes are as follows: in loess tableland, the transition is from loess terrace to complete tableland, then to residual tableland, and finally to beam tableland. In the loess ridge, the transition is from oblique ridge to knoll ridge, and the final stage is the loess knoll.
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43

Ward, Carol V., Thierra K. Nalley, Fred Spoor, Paul Tafforeau, and Zeresenay Alemseged. "Thoracic vertebral count and thoracolumbar transition in Australopithecus afarensis." Proceedings of the National Academy of Sciences 114, no. 23 (May 22, 2017): 6000–6004. http://dx.doi.org/10.1073/pnas.1702229114.

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The evolution of the human pattern of axial segmentation has been the focus of considerable discussion in paleoanthropology. Although several complete lumbar vertebral columns are known for early hominins, to date, no complete cervical or thoracic series has been recovered. Several partial skeletons have revealed that the thoracolumbar transition in early hominins differed from that of most extant apes and humans. Australopithecus africanus, Australopithecus sediba, and Homo erectus all had zygapophyseal facets that shift from thoracic-like to lumbar-like at the penultimate rib-bearing level, rather than the ultimate rib-bearing level, as in most humans and extant African apes. What has not been clear is whether Australopithecus had 12 thoracic vertebrae as in most humans, or 13 as in most African apes, and where the position of the thoracolumbar transitional element was. The discovery, preparation, and synchrotron scanning of the Australopithecus afarensis partial skeleton DIK-1-1, from Dikika, Ethiopia, provides the only known complete hominin cervical and thoracic vertebral column before 60,000 years ago. DIK-1-1 is the only known Australopithecus skeleton to preserve all seven cervical vertebrae and provides evidence for 12 thoracic vertebrae with a transition in facet morphology at the 11th thoracic level. The location of this transition, one segment cranial to the ultimate rib-bearing vertebra, also occurs in all other early hominins and is higher than in most humans or extant apes. At 3.3 million years ago, the DIK-1-1 skeleton is the earliest example of this distinctive and unusual pattern of axial segmentation.
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44

Kirby, Dale, and Dennis Sharpe. "Intention, Transition, Retention." International Journal of Information and Communication Technology Education 7, no. 1 (January 2011): 21–32. http://dx.doi.org/10.4018/jicte.2011010103.

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Studies of student transition to post-secondary education have not examined the transition experiences of students who complete on-line courses as part of their high school curriculum. To address this area of deficit in on-line learning research, in this paper, the authors discuss a multi-year study that examined high school on-line learners’ plans to participate in post-secondary education, their enrollment in post-secondary education, and their persistence in a post-secondary program. Data for these analyses were collected from student surveys as well as high school and university academic records. The results suggest that participation in on-line courses in high school is not a significant factor in the post-secondary education transition process while student academic achievement is consistently influential.
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45

Zuckerman, Austin L., and Stanley M. Lo. "Transfer Student Experiences and Identity Navigation in STEM: Overlapping Figured Worlds of Success." CBE—Life Sciences Education 20, no. 3 (September 2021): ar48. http://dx.doi.org/10.1187/cbe.20-06-0121.

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Successful transitions from community colleges to the university setting are essential for increasing the number of transfer students who complete science, technology, engineering, and mathematics (STEM) degree programs. In this study, Holland’s framework of figured worlds was used to examine how transfer students pursuing STEM negotiated their identities in their transition to the university.
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46

Köhler, Anselm, Jan-Thomas Fischer, Riccardo Scandroglio, Mathias Bavay, Jim McElwaine, and Betty Sovilla. "Cold-to-warm flow regime transition in snow avalanches." Cryosphere 12, no. 12 (November 30, 2018): 3759–74. http://dx.doi.org/10.5194/tc-12-3759-2018.

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Abstract. Large avalanches usually encounter different snow conditions along their track. When they release as slab avalanches comprising cold snow, they can subsequently develop into powder snow avalanches entraining snow as they move down the mountain. Typically, this entrained snow will be cold (T‾<-1 ∘C) at high elevations near the surface, but warm (T‾>-1 ∘C) at lower elevations or deeper in the snowpack. The intake of warm snow is believed to be of major importance to increase the temperature of the snow composition in the avalanche and eventually cause a flow regime transition. Measurements of flow regime transitions are performed at the Vallée de la Sionne avalanche test site in Switzerland using two different radar systems. The data are then combined with snow temperatures calculated with the snow cover model SNOWPACK. We define transitions as complete when the deposit at runout is characterized only by warm snow or as partial if there is a warm flow regime, but the farthest deposit is characterized by cold snow. We introduce a transition index Ft, based on the runout of cold and warm flow regimes, as a measure to quantify the transition type. Finally, we parameterize the snow cover temperature along the avalanche track by the altitude Hs, which represents the point where the average temperature of the uppermost 0.5 m changes from cold to warm. We find that Ft is related to the snow cover properties, i.e. approximately proportional to Hs. Thus, the flow regime in the runout area and the type of transition can be predicted by knowing the snow cover temperature distribution. We find that, if Hs is more than 500 m above the valley floor for the path geometry of Vallée de la Sionne, entrainment of warm surface snow leads to a complete flow regime transition and the runout area is reached by only warm flow regimes. Such knowledge is of great importance since the impact pressure and the effectiveness of protection measures are greatly dependent on the flow regime.
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47

Liu, Xiaolu, Guanbo Shao, Yudong Tang, and Duxin Chen. "Rotational Flocking with Spontaneous Directional Changes." Complexity 2021 (July 29, 2021): 1–7. http://dx.doi.org/10.1155/2021/1288161.

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Revealing the underlying decision-making strategy governing the high-group polarization accompanied by conflicting individual preferences may play a central part in the lives of social animals. Hereby, we construct a structured spin model in accordance with empirical validation, which shows how distinct individual preferences converge from one consensus homeostasis to another lowest-energy equilibrium. To verify the theoretical derivation, we use high-resolution spatiotemporal GPS data of a flock of thirty pigeons and study the dynamical evolution mechanism of systemic spins. Therein, we find successful rotational direction transitions requiring a sufficient number of supporters. A few initiators trigger the phase transition from one equilibrium to another, where the symmetric transient state indicates a diamond hierarchical network being completed by the intermediates and the rear individuals. By further studying the nature, we reveal that decision-making sequences are strongly triggered and influenced by individual positions and the leader-follower relationship. Thus, we can predict which individual is more likely to make the decision before the initial transition moment and who will draw the complete stop. Consequently, the revealed decision-making strategy facilitates a comprehensive understanding of collective behavioral transition.
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48

Pedersen, Jannik Nedergaard, Jeppe Lyngsø, Thomas Zinn, Daniel E. Otzen, and Jan Skov Pedersen. "A complete picture of protein unfolding and refolding in surfactants." Chemical Science 11, no. 3 (2020): 699–712. http://dx.doi.org/10.1039/c9sc04831f.

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The time-resolved study reveals several transition states during SDS-induced unfolding of the protein, as well as under refolding of the protein by the nonionic surfactant C12E8.
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49

Kuhlmann, Marco, and Joakim Nivre. "Transition-Based Techniques for Non-Projective Dependency Parsing." Northern European Journal of Language Technology 2 (October 1, 2010): 1–19. http://dx.doi.org/10.3384/nejlt.2000-1533.10211.

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We present an empirical evaluation of three methods for the treatment of non-projective structures in transition-based dependency parsing: pseudo-projective parsing, non-adjacent arc transitions, and online reordering. We compare both the theoretical coverage and the empirical performance of these methods using data from Czech, English and German. The results show that although online reordering is the only method with complete theoretical coverage, all three techniques exhibit high precision but somewhat lower recall on non-projective dependencies and can all improve overall parsing accuracy provided that non-projective dependencies are frequent enough. We also find that the use of non-adjacent arc transitions may lead to a drop in accuracy on projective dependencies in the presence of long-distance non-projective dependencies, an effect that is not found for the two other techniques.
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50

Ford, Denise C., Anand Udaykumar Nilekar, Ye Xu, and Manos Mavrikakis. "Partial and complete reduction of O2 by hydrogen on transition metal surfaces." Surface Science 604, no. 19-20 (September 2010): 1565–75. http://dx.doi.org/10.1016/j.susc.2010.05.026.

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