Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 21 for “"Retractions"”.
-
High-order retractions for reduced-order modeling and uncertainty quantification
… we develop time integration schemes, called retractions, to efficiently evolve the dynamics of a system's low-rank approximation. Through the study of differential geometry, we are able to analyze the error incurred at each time step. A novel, explicit, computationally inexpensive set of …
-
Deformation retractions from spaces of continuous maps onto spaces of holomorphic maps
A fundamental property of an Oka manifold Y is that every continuous map from a Stein manifold X to Y can be deformed to a holomorphic map. In a recent paper, Larusson [19] considers the natural question of whether it is possible to simultaneously deform all continuous maps f from X to Y to …
-
Global Properties of the Space of Retractions of the Two-Sphere and the Annulus
Made available in DSpace on 2014-12-09T22:17:57Z (GMT). No. of bitstreams: 1 7021080.pdf: 3107686 bytes, checksum: 6b2763403d272506243ce2a1358db106 (MD5) Previous issue date: 1970
-
Metric Geometry of Finite Subset Spaces
… retract, establishing the existence of Lipschitz retractions X(n) --> X(n-1) for all n>= 1 would be a partial positive answer to this question.</p> <p>Among other things, we will prove the following. If X is a metrizable space, then so is X(n). If a metric space X is a snowflake, quasiconvex, or …
-
Computer Aided Design of Side Actions for Injection Molding of Complex Parts
… step, a discrete set of feasible, non-dominated retractions is generated. Then the undercut facets are grouped into undercut regions by performing state space search over such retractions. This search step is performed by minimizing the customizable molding cost function. After identifying the …
-
Perspectives of Young Sexual Abuse Survivors, Whose Abuse is Unknown to Child Protection Services, about Confidentiality: A Participatory Study Involving Young Abuse Survivors as Co-researchers
… to disclose CSA compared to females (iii) abuse retractions were related to loss of confidentiality (iv) involvement as co-researchers was positive and empowering. With limited confidentiality the identified themes for young people were: fear of consequences, lost control, abuse retractions and …
-
Dynamical Reduced-Order Models for High-Dimensional Systems
… the DLRA. We start by introducing perturbative retractions, which map arbitrary-rank matrices back to a manifold of fixed-rank matrices. They asymptotically approximate the truncated singular value decomposition at a greatly reduced cost while guaranteeing convergence to the best low-rank …
-
Essays on learning and strategy in research and development
… first essay, I study the impact of scientific retractions on citation patterns and funding in the retracted paper's intellectual field. I investigate how the retraction disclosure and affected field's characteristics influence the extent of these spillover effects. The second essay evaluates …
-
Additive Manufacturing Filled Polymer Composites for Environmental Contaminants: Material Extrusion Processing, Structure and Performance
… and particle network recovery during printer retractions, leading to nozzle clogging. Lower 20% w/w loading was more conducive to larger production printing due to lower viscosity, longer viscosity recovery times for retractions and thus generally a wider processing window. While altering twin …
-
Investigating the Roles of the Stk Locus in Development, Motility and Exopolysaccharide Production in Myxococcus Xanthus
… EPS is proposed to anchor and trigger such retractions in M. xanthus. EPS production is known to be regulated by TFP and the Dif signal transduction pathway. Two genetic screens were performed previously to identify additional genes important for EPS production. The first was for the …
-
Late Cainozoic rainforest vertebrates from Australopapua: evolution, biogeography and extinction
… followed by subsequent massive range retractions. Detailed documentation of this rare fauna testifies to rainforest stability in central eastern Queensland until approximately 280,000 years ago, when the development of an El Nino dominated climate generated variable climatic patterns …
-
Developmental Nicotine Exposure And Its Effects On Morphology And Electrophysiology Of Hypoglossal Motoneurons In The Neonatal Rat
… that during inspiration-related tongue retractions in low and high force conditions, recruitment of motor units plays a crucial role in the control of tongue force output, whereas rate coding of single motor units is present, but appears to play a lesser role. Overall, this study shows …
-
The impact and rupture of a water-filled balloon on a rigid surface
… be disperse, in contrast with that observed for retractions from small initial stretches, due to both non-linearity in the rubber and drag from the water on the strip. The spray ejected behind the rubber is explained as consequence of the inherent instability of the Gaussian velocity field in the …
-
Argument revision and its role in dialogue
… reason about what constitutes a minimal set of retractions, in terms of current commitments and potential future communications in the dialogue.The second dialogical application relates to the opposite of retraction; instead of choosing to retract an undefended claim, the participant could …
-
SPATIALLY EXPLICIT MODEL OF AREAS BETWEEN SUITABLE BLACK BEAR HABITAT IN EAST TEXAS AND BLACK BEAR POPULATIONS IN LOUISIANA, ARKANSAS, AND OKLAHOMA
… and habitat loss resulted in severe range retractions and by the beginning of the twentieth century populations in Oklahoma, Louisiana, Texas and Arkansas were nearing extirpation. In response to these losses, translocation programs were initiated in Arkansas (1958-1968 & 2000-2006) and …
-
Critérios de indexação de periódicos científicos na coleção Scielo Brasil na percepção dos editores do Nordeste Brasileiro.
… reference material and DNA sequence; errata and retractions; citations received in indexes reached an Average Ranking of indifference; disagreement; disagreement; indifference respectively. It is concluded that although the editors investigated recognize the relevance of indexing journals, the …
-
From Spheres to Sheets: Colloidal Hydrodynamics, Thermodynamics, and Statistical Inference
… factorization, and computationally efficient retractions are constructed that involve O(nm)-flop inner loop iterations. The second algorithm developed, called Collective Mode Brownian Dynamics (CMBD), is a method based on Brownian dynamics simulations that uses a specially constructed mobility …
-
Understanding mechanical environment changes and biological responses to canine retraction using T-loop
… patients who needed maxillary bilateral canine retractions were involved in the study. A method was developed to quantify the 3D load systems on the canine, which allowed the treatment strategies to be customized in terms of orthodontic loading systems to meet either translation (TR) or …
-
Reproducibility crisis in science: causes and possible solutions
Part I. Claims to knowledge require justification. In science, such justification is made possible by the ability to reproduce or replicate experiments, thereby confirming their validity. Additionally, reproducibility serves as a self-correcting tool in science as it weeds out faulty experiments. …
-
Experimental Investigations into the Accuracy and Precision of Material Extrusion Additive Manufacturing
… rotation speeds, lower temperatures and filament retractions did improve this behaviour, though introduced additional geometrical error inwards from the corner. Ultimately, it was determined that immediate improvements can be made through adoption of the updated filament model and better …
Page 1 of 2