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Relevant bibliographies by topics / Multiple Stratification

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Academic literature on the topic 'Multiple Stratification'

Author: Grafiati

Published: 8 September 2023

Last updated: 31 July 2025

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Journal articles on the topic "Multiple Stratification"

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JOURDAIN, BENJAMIN, BERNARD LAPEYRE, and PIERGIACOMO SABINO. "CONVENIENT MULTIPLE DIRECTIONS OF STRATIFICATION." International Journal of Theoretical and Applied Finance 14, no. 06 (2011): 867–97. http://dx.doi.org/10.1142/s0219024911006772.

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This paper investigates the use of multiple directions of stratification as a variance reduction technique for Monte Carlo simulations of path-dependent options driven by Gaussian vectors. The precision of the method depends on the choice of the directions of stratification and the allocation rule within each strata. Several choices have been proposed but, even if they provide variance reduction, their implementation is computationally intensive and not applicable to realistic payoffs, in particular not to Asian options with barrier. Moreover, all these previously published methods employ orth

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Ooi, Melissa Gaik-Ming, Sanjay de Mel, and Wee Joo Chng. "Risk Stratification in Multiple Myeloma." Current Hematologic Malignancy Reports 11, no. 2 (2016): 137–47. http://dx.doi.org/10.1007/s11899-016-0307-4.

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Skinner, C. J., D. J. Holmes, and D. Holt. "Multiple Frame Sampling for Multivariate Stratification." International Statistical Review / Revue Internationale de Statistique 62, no. 3 (1994): 333. http://dx.doi.org/10.2307/1403765.

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Chang, Kuang-Chao, Jeng-Fu Liu, and Chien-Pai Han. "Multiple inverse sampling in post-stratification." Journal of Statistical Planning and Inference 69, no. 2 (1998): 209–27. http://dx.doi.org/10.1016/s0378-3758(97)00157-2.

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Gharbi, Alya, Saloua Mrabet, Amina Nasri, et al. "Prognostic Factors Stratification in Multiple Sclerosis." Multiple Sclerosis and Related Disorders 37 (January 2020): 101534. http://dx.doi.org/10.1016/j.msard.2019.11.009.

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Ghaemsaidi, S. J., H. V. Dosser, L. Rainville, and T. Peacock. "The impact of multiple layering on internal wave transmission." Journal of Fluid Mechanics 789 (January 25, 2016): 617–29. http://dx.doi.org/10.1017/jfm.2015.682.

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Given the ubiquity of layering in environmental stratifications, an interesting example being double-diffusive staircase structures in the Arctic Ocean, we present the results of a joint theoretical and laboratory experimental study investigating the impact of multiple layering on internal wave propagation. We first present results for a simplified model that demonstrates the non-trivial impact of multiple layering. Thereafter, utilizing a weakly viscous linear model that can handle arbitrary vertical stratifications, we perform a comparison of theory with experiments. We conclude by applying

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Ortega-Legarreta, Asier, Sara Palomino-Echeverria, Estefania Huergo, et al. "ClustAll: An R package for patient stratification in complex diseases." PLOS Computational Biology 20, no. 12 (2024): e1012656. https://doi.org/10.1371/journal.pcbi.1012656.

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In the era of precision medicine, it is necessary to understand heterogeneity among patients with complex diseases to improve personalized prevention and management strategies. Here, we introduce ClustAll, a Bioconductor package designed for unsupervised patient stratification using clinical data. ClustAll is based on the previously validated methodology ClustAll, a clustering framework that effectively handles intricacies in clinical data, including mixed data types, missing values, and collinearity. Additionally, ClustAll stands out in its ability to identify multiple patient stratifications

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Chang, Kuang-Chao, Chien-Pai Han, and Doyle L. Hawkins. "Truncated multiple inverse sampling in post-stratification." Journal of Statistical Planning and Inference 76, no. 1-2 (1999): 215–34. http://dx.doi.org/10.1016/s0378-3758(98)00135-9.

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Ontaneda, Daniel, Samuel Cohn, and Robert J. Fox. "Risk stratification and mitigation in multiple sclerosis." Multiple Sclerosis and Related Disorders 3, no. 5 (2014): 639–49. http://dx.doi.org/10.1016/j.msard.2014.05.003.

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Hussain, Mohsin, Asad Mahmood, Rafia Mahmood, Hamid Iqbal, Ayesha Khurshid, and Nabeela Khan. "Multiple Myeloma-Clinicopathological Features and Risk Stratification." Pakistan Armed Forces Medical Journal 72, SUPPL-2 (2022): S95–98. http://dx.doi.org/10.51253/pafmj.v72isuppl-2.3100.

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Objective: To evaluate the clinic pathological features and to risk stratify patients of multiple myeloma in our population. Study Design: Cross sectional study. Place and Duration of Study: Department of Hematology, Armed Forces Institute of Pathology (AFIP) Rawalpindi Pakistan, from Jan to Jun 2019. Methodology: Patients that were newly diagnosed multiple myeloma on the basis of International Myeloma Working Group (IMWG) 2014 criteria were included in the study. Blood counts, peripheral film examination, bone marrow aspirate and trephine were examined. Biochemical profile,

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Dissertations / Theses on the topic "Multiple Stratification"

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Tae, Yun-Jin. "Leisure constraints multiple hileararchy [sic] stratification perspectives /." Connect to this title online, 2007. http://etd.lib.clemson.edu/documents/1202500372.

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Ghazali, Syed Shakir Ali. "Multiple stratification when one of the stratifying variables is time." Thesis, University of Southampton, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316422.

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Agnelli, L. "IMPROVED RISK STRATIFICATION IN MULTIPLE MYELOMA USING A MICRORNA-BASED CLASSIFIER." Doctoral thesis, Università degli Studi di Milano, 2014. http://hdl.handle.net/2434/232961.

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Introduction and purposes. Multiple myeloma (MM) is a heterogeneous disease. The discovery of a class of small non-coding RNAs (miRNAs) has revealed a new level of biological complexity underlying the regulation of gene expression. It may be possible to use this interesting new biology to improve our ability to risk stratify patients in the clinic. Methods and experimental design. We performed global miRNA expression profiling analysis of 163 primary tumors included in the UK Myeloma IX clinical trial. miRNA expression profiling was carried out using Affymetrix GeneChip miRNA 2.0; e

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Chan, Yan Seng Esther. "Private education in China : a multiple-case study of social stratification and social change." Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608256.

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Dzikiti, Loveness Nyaradzo. "Comparing approaches for combining data collected from multiple complex surveys, adjusting for clustering and stratification." Thesis, University of Pretoria, 2019. http://hdl.handle.net/2263/73137.

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Even though there is substantial literature on studies which pool survey data, it is still not clear which are the most efficient methodologies for pooling data from different surveys. For example, it is important to know whether the surveys involved should be given equal importance in the calculation of the combined statistics or not. If they are not given equal importance, then it should be clear how they should be weighted and why. In this research project, alternative methods used to combine survey data were evaluated and new methods proposed. A literature review of methods that are cur

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Song, Brian. "Comprehensive Risk Stratification Model for Prognostication and Assisting with Therapeutic Decision-Making for Multiple Myeloma Patients." Thesis, California State University, Long Beach, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10839998.

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<p> The goal of the research is to improve current risk stratification models of multiple myeloma by developing a novel statistical decision algorithm. The increase in precision would assist in providing optimal treatments for multiple myeloma cancer patients depending on the risk of progression at the time of diagnosis. If progression of cancer is imminent, then risk-adapted therapy would be a considerable option. Larger amount of data supplied from multiple clinics were gathered to obtain better prognosis. The data are available from the Synapse website under the Multiple Myeloma DREAM Chall

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Bouaziz, Matthieu. "Statistical methods to account for different sources of bias in Genome-Wide association studies." Thesis, Evry-Val d'Essonne, 2012. http://www.theses.fr/2012EVRY0023/document.

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Les études d'association à grande échelle sont devenus un outil très performant pour détecter les variants génétiques associés aux maladies. Ce manuscrit de doctorat s'intéresse à plusieurs des aspects clés des nouvelles problématiques informatiques et statistiques qui ont émergé grâce à de telles recherches. Les résultats des études d'association à grande échelle sont critiqués, en partie, à cause du biais induit par la stratification des populations. Nous proposons une étude de comparaison des stratégies qui existent pour prendre en compte ce problème. Leurs avantages et limites sont discuté

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Playford, C. J. "The role of families in the stratification of attainment : parental occupations, parental education and family structure in the 1990s." Thesis, University of Stirling, 2011. http://hdl.handle.net/1893/3600.

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The closing decades of the 20th century have witnessed a large increase in the numbers of young people remaining in education post-16 rather than entering the labour market. Concurrently, overall educational attainment in General Certificate of Secondary Education (GCSE) qualifications in England and Wales has steadily increased since their introduction in 1988. The 1990s represent a key period of change in these trends. Some sociologists argue that processes of detraditionalisation have occurred whereby previous indicators of social inequality, such as social class, are less relevant to the t

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Liublinska, Viktoriia. "Sensitivity Analyses in Empirical Studies Plagued with Missing Data." Thesis, Harvard University, 2013. http://dissertations.umi.com/gsas.harvard:10898.

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Analyses of data with missing values often require assumptions about missingness mechanisms that cannot be assessed empirically, highlighting the need for sensitivity analyses. However, universal recommendations for reporting missing data and conducting sensitivity analyses in empirical studies are scarce. Both steps are often neglected by practitioners due to the lack of clear guidelines for summarizing missing data and systematic explorations of alternative assumptions, as well as the typical attendant complexity of missing not at random (MNAR) models. We propose graphical displays that help

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Talbot, Justin F. "Importance Resampling for Global Illumination." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd1021.pdf.

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Books on the topic "Multiple Stratification"

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Graham, Ian, Therese Cooney, and Dirk De Bacquer. Risk stratification and risk assessment. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199656653.003.0005.

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Cardiovascular disease (CVD) is the biggest cause of death worldwide. The underlying atherosclerosis starts in childhood and is often advanced when it becomes clinically apparent many years later. CVD is manageable: in countries where it has reduced this is due to changes in lifestyle and risk factors and to therapy. Risk factor management reduces mortality and morbidity. In apparently healthy people CVD risk is most frequently the result of multiple interacting risk factors and a risk estimation system such as SCORE can assist in making logical management decisions. In younger people a low ab

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Clarke, Colin. Decolonizing the Colonial City. Oxford University Press, 2006. http://dx.doi.org/10.1093/oso/9780199269815.001.0001.

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In this sequel to Kingston, Jamaica: Urban Development and Social Change, 1692 to 1962 (1975) Colin Clarke investigates the role of class, colour, race, and culture in the changing social stratification and spatial patterning of Kingston, Jamaica since independence in 1962. He also assesses the strains - created by the doubling of the population - on labour and housing markets, which are themselves important ingredients in urban social stratification. Special attention is also given to colour, class, and race segregation, to the formation of the Kingston ghetto, to the role of politics in the

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Singer, Mervyn. Pathophysiology and causes of pulmonary embolism. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0170.

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Pulmonary embolus is predominantly due to thrombus breaking off from deep veins or from within the right heart, lodging within large or small vessels within the pulmonary vasculature, causing a variable degree of clinical features ranging from asymptomatic through to shock and cardiac arrest. Non-thrombotic causes include air or fat embolism. Outcome is predicated by the degree of right ventricular dysfunction. There are multiple risk factors including surgery, arrhythmias, prolonged immobility, venous stasis, pregnancy and an underlying pro-thrombotic tendency, either congenital or acquired.

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Delamont, Shane. Syncope. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199688395.003.0029.

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This chapter details the epidemiology, clinical spectrum, and major causes of syncope. There is a conceptual framework of the physiology behind syncope and a discussion about cerebral blood flow. Particular attention is given to understanding neurocardiogenic syncope, which is the commonest cause. It looks at the latest physiological understanding of syncope and the importance of clinical context which enables risk stratification and facilitates diagnosis of the causes and hence management of syncope. National Institute of Clinical Excellence (NICE) guidelines, their effective use are emphasiz

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Ray, Komal, and Mark Bellamy. Hepatic and renal disease and anaesthesia. Edited by Philip M. Hopkins. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199642045.003.0085.

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Anaesthesia for the patient with liver or renal disease may seem daunting, not least because of the multisystem nature of these seemingly single-system conditions. Both kidney and liver disease are associated with systemic manifestations, and often with multiple co-morbidities. There are inherent complexities in patient assessment and risk stratification. The process of preoperative optimization is a complex one, and has to be tailored to the individual, based on a detailed understanding both of the pathophysiology of the organ dysfunction, and its clinical implications. The practical conduct

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Guest, Paul C. Multiplex Biomarker Techniques: Methods and Applications for COVID-19 Disease Diagnosis and Risk Stratification. Springer, 2022.

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Multiplex Biomarker Techniques: Methods and Applications for COVID-19 Disease Diagnosis and Risk Stratification. Springer, 2023.

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Silvers, Michael B. Voices of Drought. University of Illinois Press, 2018. http://dx.doi.org/10.5622/illinois/9780252042089.001.0001.

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Voices of Drought is an ethnomusicological study of relationships between popular music, the environmental and social costs of drought, and the politics of culture and climate vulnerability in the northeast region of Brazil, primarily the state of Ceará. The book traces the articulations of music and sound with drought as a discourse, a matter of politics, and a material reality. It encompasses multiple entwined issues, including ecological exile, poverty, and unequal access to vital resources such as water, along with corruption, prejudice, unbridled capitalism, and rapidly expanding neoliber

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Banerjee, Amitava, and Kaleab Asrress. Prevention of cardiovascular disease. Edited by Patrick Davey and David Sprigings. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199568741.003.0343.

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The global scale of the cardiovascular disease epidemic is unquestionable, with cardiovascular disease causing a greater burden of mortality and morbidity than any other disease, regardless of country or population. With demographic change and ageing populations, the prevalence of cardiovascular disease and its risk factors is set to increase. The commonest cardiovascular diseases are atherosclerotic, affecting all arterial territories. The ‘burden of disease’ approach has highlighted the fact that cardiovascular disease and non-communicable diseases are not simply diseases of affluence but af

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Yuan, Lijun. Confucian Ren and Feminist Ethics of Care. The Rowman & Littlefield Publishing Group, 2019. https://doi.org/10.5040/9781666988062.

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The rehabilitation of Confucian tradition raised new challenges to Chinese feminist thinkers. Can a Confucian ideal of reciprocity help women realize their equality? What is the hope for Chinese women seeking a social ideal of equality given the growing gender gap in the current economic development of China? Yuan argues Confucianism cannot help unless it is integrated with feminism. In this book, Yuan explores why gendered stratifications perpetuated so deeply in today’s China through the influences of Confucian cultural tradition, but reading early Confucian texts as a cosmological vision of

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Book chapters on the topic "Multiple Stratification"

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Kumar, Shaji, Rafael Fonseca, and Keith Stewart. "Molecular Classification and Risk Stratification." In Multiple Myeloma. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-8520-9_6.

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Mateos, María-Victoria, and Jesús San-Miguel. "Risk Stratification in Newly Diagnosed Smoldering Multiple Myeloma." In Personalized Therapy for Multiple Myeloma. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-61872-2_1.

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Jagosky, Megan H., Alankrita Taneja, and Manisha Bhutani. "Risk Stratification in Newly Diagnosed Transplant-Eligible Multiple Myeloma." In Personalized Therapy for Multiple Myeloma. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-61872-2_2.

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Offidani, Massimo, Laura Corvatta, Silvia Gentili, et al. "Risk Stratification in Newly Diagnosed Transplant Ineligible Multiple Myeloma." In Personalized Therapy for Multiple Myeloma. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-61872-2_3.

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Cruciani, Federica, Lorenza Brusini, Mauro Zucchelli, et al. "Explainable 3D-CNN for Multiple Sclerosis Patients Stratification." In Pattern Recognition. ICPR International Workshops and Challenges. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-68796-0_8.

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Gonzalez-Martinez, Sergio, María Fernanda Cabrera-Umpiérrez, Manuel Ottaviano, et al. "Novel Interactive BRAINTEASER Tools for Amyotrophic Lateral Sclerosis (ALS) and Multiple Sclerosis (MS) Management." In Lecture Notes in Computer Science. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-09593-1_26.

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AbstractThe presented demonstrated working tools in the initial version constitute the foundation of the novel ALS and MS management and monitoring, leveraging extended IoT sensing and emerging instruments infrastructure, and a basis for integration of more advanced and effective AI models (in development) for disease progression prediction, patient stratification and ambiental exposure assessment.

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Jian, Lijun, Xiao Zeng, and Jie Pei. "The Potential Force Interface Tension Model in MPS Method for Stratification Simulation." In Springer Proceedings in Physics. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1023-6_27.

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AbstractIn the analysis of phenomenology of serious accident, stratification behavior is important in the late in-vessel stage of core melt. Traditional numerical methods have difficulties in analyzing stratification process accompanying with free surface, which need extra processes such as empirical correlations. The Moving Particle Semi-implicit (MPS) method has a natural advantage in calculating multiphase flows with free surface. In this paper, we apply the potential force surface tension model to the MPS program and extend the original surface tension model to the interface tension calcul

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Gentili, Silvia, and Sagar Lonial. "Risk Stratification and Response Assessment in Multiple Myeloma and Waldenström's Macroglobulinemia." In Cancer Consult: Expertise for Clinical Practice. John Wiley & Sons, Ltd, 2014. http://dx.doi.org/10.1002/9781118589199.ch55.

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Liu, Yuanliu, Pengpeng Zhao, Xu Zhou, and Zhiming Cui. "A Multiple-Phase Stratification-Based Hierarchical Clustering Over a Deep Web Data Source." In Advances in Intelligent Systems and Computing. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-54924-3_37.

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Corre, Jill, and Hervé Avet-Loiseau. "Prognostic Implication of Genetic Changes (Cytogenetics, and FISH, Gains and Losses of DNA by SNP Array and aCGH) in Risk Stratification in Myeloma." In Advances in Biology and Therapy of Multiple Myeloma. Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-4666-8_2.

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Conference papers on the topic "Multiple Stratification"

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Asarawala, Arun, Pete Mackulin, Randy Krafcik, and Dave Klimovich. "Self-Stratifying Coatings - the Next Generation in Performance." In SSPC 2011. SSPC, 2011. https://doi.org/10.5006/s2011-00002.

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Abstract This paper will focus on the advancement of waterborne acrylic coatings that features self-stratifying technology which significantly advances performance of color and gloss retention. Various analytical methods were used to verify stratification. Magnified cross sections of the coating film will show the layered effect and discussion of how these multiple micro-paint layers outperform standard acrylics. An overview of performance testing will be presented to demonstrate the value of this technology and how it contributes to longer lifecycle costs and lower overall project costs.

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Benagi, Abhinav, Dhanyatha Narayan, Priya K, et al. "Predictive Cloud-Based Application for the Early Detection and Risk Stratification of Oral Cancer using Keratin Pearls, Multiple Nucleoli and Vascular Invasion." In 2024 28th International Computer Science and Engineering Conference (ICSEC). IEEE, 2024. https://doi.org/10.1109/icsec62781.2024.10770727.

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Rosanova, Giuseppe. "IL RUOLO DELLE ALTERNATIVE DISPUTES RESOLUTION NEL FRAMEWORK ENERGETICO EUROPEO." In 11th SWS International Scientific Conferences on SOCIAL SCIENCES - ISCSS 2024. SGEM WORLD SCIENCE, 2024. https://doi.org/10.35603/sws.iscss.2024/vs02/20.

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The final frontier of European transitional energy law must be found in the introduction of a balanced and efficient system of climate and energy justice. The stratification, over time, of multiple rules in European Union law, both soft law and hard law, has, on the one hand, ensured legal certainty and regulation of the various aspects of the matter but, on the other hand, risks increasing litigation between the players in this field exponentially. The significant increase in the number of regulations governing the various aspects of the �energy community� entails the need to raise the level

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Andavolu, Radhika Gade, Olivia Rodriguez, Anastasia Al Rubakovic, Catherine Stafford, and Murthy V. Andavolu. "Abstract 3267: Combined effect of multiple gene polymorphisms on cancer risk stratification." In Proceedings: AACR Annual Meeting 2017; April 1-5, 2017; Washington, DC. American Association for Cancer Research, 2017. http://dx.doi.org/10.1158/1538-7445.am2017-3267.

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Liu, Ziyu, Wei Shao, Jie Zhang, Min Zhang, and Kun Huang. "Transfer Learning via Optimal Transportation for Integrative Cancer Patient Stratification." In Thirtieth International Joint Conference on Artificial Intelligence {IJCAI-21}. International Joint Conferences on Artificial Intelligence Organization, 2021. http://dx.doi.org/10.24963/ijcai.2021/380.

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The Stratification of early-stage cancer patients for the prediction of clinical outcome is a challenging task since cancer is associated with various molecular aberrations. A single biomarker often cannot provide sufficient information to stratify early-stage patients effectively. Understanding the complex mechanism behind cancer development calls for exploiting biomarkers from multiple modalities of data such as histopathology images and genomic data. The integrative analysis of these biomarkers sheds light on cancer diagnosis, subtyping, and prognosis. Another difficulty is that labels for

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Ahn, Ji Soo, Michael Bluck, Matthew Eaton, and Chris Jackson. "A Validation of RELAP on Predicting Nuclear Power Plant Phenomena." In 2018 26th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icone26-81424.

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In this study, RELAP5’s capability to simulate thermal stratification under different conditions is assessed. In nuclear power plants (NPPs), thermal stratification can occur in the following locations: pressurizer, piping systems such as hot legs, cold legs, surge lines, and cooling tanks if available. In general, thermal stratification in a horizontal pipe could not be simulated by RELAP5 due to the inherent one-dimensional setting. Moreover, RELAP5 failed to simulate turbulent penetration which was often a pre-requisite prior to thermal stratification in a pipe. This type of situation could

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Zhou, Chuan, Heang-Ping Chan, Lubomir M. Hadjiiski, and Qian Dong. "Deep learning based risk stratification for treatment management of multiple myeloma with sequential MRI scans." In Computer-Aided Diagnosis, edited by Karen Drukker and Maciej A. Mazurowski. SPIE, 2021. http://dx.doi.org/10.1117/12.2582203.

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Sajjad, Farasdaq Muchibbus, Steven Chandra, Patrick Ivan, Wingky Suganda, Yudi Budiansah, and Alvin Derry Wirawan. "The Effect of Compositional Gradient in Field Development." In SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/205801-ms.

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Abstract The existence of fluid’s compositional gradient in a reservoir drives convective flow which brings significant impacts to the operations, e.g., in formulation of injected fluid for well stimulation and enhanced oil Recovery (EOR). However, fluid compositional gradient is not always included in modeling reservoir performance due to PVT sampling limitation and simulation constraint. This work aims to show the significance of compositional convection in oil/gas reservoir and provides our experiences in dealing with this issue in Indonesian’s fields. PHE ONWJ as one of the most prolific p

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Abe, Satoshi, Masahiro Ishigaki, Yasuteru Sibamoto, and Taisuke Yonomoto. "RANS and LES Analyses on a Density Stratified Layer Behavior of Multicomponent Gas by Buoyant Jet in a Small Vessel." In 2014 22nd International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/icone22-30020.

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The analysis on a density stratified layer consisting of multiple gases in the reactor containment vessel is important for the safety assessment of sever accidents. Computational Fluid Dynamics (CFD) code has a potential to clarify detailed stratification phenomena in the containment vessel. In this paper, CFD analyses were carried out in order to investigate the erosion of the stratified layer by a vertical buoyant jet injected from the bottom of a small vessel. Although the Reynolds-Averaged Navier-Stokes (RANS) model is commonly used in industrial applications, it is known that the RANS ana

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Jiang, Jinghua, Ying Li, Tianlin Wang, Lili Tong, and Xuewu Cao. "Mixing and Stratification Phenomena Under Natural Convection in the Multi-Openings Compartment." In 2022 29th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/icone29-90143.

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Abstract The mixing and stratification of hydrogen-vapor-air in the compartment is extensively studied under inertia jets and turbulent buoyant jets. The characteristics of buoyancy-driven flows during fission and fusion reactor accidents need to be further studied to provide a benchmark for the validation of computational procedures. In this paper, a large-scale facility of a vessel with multiple openings is established to study the mixing and stratification of the mixture driven by buoyancy under natural convection. The test is carried out with well-controlled boundary conditions, in which,

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Reports on the topic "Multiple Stratification"

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Harter, Rachel M., Pinliang (Patrick) Chen, Joseph P. McMichael, Edgardo S. Cureg, Samson A. Adeshiyan, and Katherine B. Morton. Constructing Strata of Primary Sampling Units for the Residential Energy Consumption Survey. RTI Press, 2017. http://dx.doi.org/10.3768/rtipress.2017.op.0041.1705.

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Abstract:

The 2015 Residential Energy Consumption Survey design called for stratification of primary sampling units to improve estimation. Two methods of defining strata from multiple stratification variables were proposed, leading to this investigation. All stratification methods use stratification variables available for the entire frame. We reviewed textbook guidance on the general principles and desirable properties of stratification variables and the assumptions on which the two methods were based. Using principal components combined with cluster analysis on the stratification variables to define s

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2

Hicks, James, Herbert Lepor, Michael Wigler, and Joan Alexander. Molecular Markers for Prostate Cancer Risk Stratification from Multiple Ultrasound-Guided Biopsies. Defense Technical Information Center, 2014. http://dx.doi.org/10.21236/ada614118.

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