Готові списки джерел за темами / Incomplete Survey

Добірка наукової літератури з теми "Incomplete Survey"

Автор: Grafiati

Опубліковано: 8 вересня 2023

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Статті в журналах з теми "Incomplete Survey"

Miao, Xiaoye, Yunjun Gao, Su Guo, and Wanqi Liu. "Incomplete data management: a survey." Frontiers of Computer Science 12, no. 1 (January 23, 2017): 4–25. http://dx.doi.org/10.1007/s11704-016-6195-x.

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Wang, Hai, and Shouhong Wang. "Mining incomplete survey data through classification." Knowledge and Information Systems 24, no. 2 (August 20, 2009): 221–33. http://dx.doi.org/10.1007/s10115-009-0245-8.

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Wang, Shouhong, and Hai Wang. "Conceptual construction on incomplete survey data." Data & Knowledge Engineering 49, no. 3 (June 2004): 311–23. http://dx.doi.org/10.1016/j.datak.2003.10.007.

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Bill, Marc, and Beat Hulliger. "Treatment of Multivariate Outliers in Incomplete Business Survey Data." Austrian Journal of Statistics 45, no. 1 (February 29, 2016): 3–23. http://dx.doi.org/10.17713/ajs.v45i1.86.

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The distribution of multivariate quantitative survey data usually is not normal. Skewed and semi-continuous distributions occur often. In addition, missing values and non-response is common. All together this mix of problems makes multivariate outlier detection difficult. Examples of surveys where these problems occur are most business surveys and some household surveys like the Survey for the Statistics of Income and Living Condition (SILC) of the European Union. Several methods for multivariate outlier detection are collected in the R-package modi. This paper gives an overview of modi and its functions for outlier detection and corresponding imputation. The use of the methods is explained with a business survey dataset. The discussion covers pre- and post-processing to deal with skewness and zero-inflation, advantages and disadvantages of the methods and the choice of the parameters.

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Suzuki, Jeff. "Modern Geometric Algebra: A (Very Incomplete!) Survey." Mathematics Teacher 103, no. 1 (August 2009): 26–33. http://dx.doi.org/10.5951/mt.103.1.0026.

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Suzuki, Jeff. "Modern Geometric Algebra: A (Very Incomplete!) Survey." Mathematics Teacher 103, no. 1 (August 2009): 26–33. http://dx.doi.org/10.5951/mt.103.1.0026.

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Löfgren, Karl-Gustaf, and Karl-Gustaf Lofgren. "Macroeconomic Model Building in Sweden: An Incomplete Survey." Scandinavian Journal of Economics 93, no. 2 (June 1991): 331. http://dx.doi.org/10.2307/3440339.

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Glimm, Birte, and Heiner Stuckenschmidt. "15 Years of Semantic Web: An Incomplete Survey." KI - Künstliche Intelligenz 30, no. 2 (January 23, 2016): 117–30. http://dx.doi.org/10.1007/s13218-016-0424-1.

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Shen, Dong. "Iterative learning control with incomplete information: a survey." IEEE/CAA Journal of Automatica Sinica 5, no. 5 (September 2018): 885–901. http://dx.doi.org/10.1109/jas.2018.7511123.

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Arslanturk, Suzan, Mohammad-Reza Siadat, Theophilus Ogunyemi, Kim Killinger, and Ananias Diokno. "Analysis of incomplete and inconsistent clinical survey data." Knowledge and Information Systems 46, no. 3 (July 8, 2015): 731–50. http://dx.doi.org/10.1007/s10115-015-0850-7.

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Дисертації з теми "Incomplete Survey"

Chui, On Kei. "A survey on franchising and an application of incomplete contract /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?ECON%202004%20CHUI.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2004.
Includes bibliographical references (leaves 34-36). Also available in electronic version. Access restricted to campus users.

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Hunter, Guillermo Arturo Ramirez. "Corporate finance in general equilibrium models with incomplete markets: a survey." Master's thesis, NSBE - UNL, 2010. http://hdl.handle.net/10362/11848.

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A Masters Thesis, presented as part of the requirements for the award of a Research Masters Degree in Economics from NOVA – School of Business and Economics
This is a survey of models of general equilibrium with incomplete markets and corporations. The intuition behind several of the difficulties that arise in these models is discussed. Interesting issues are pointed out also.

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Mohammed, Raji Tajudeen. "Assessment of factors associated with incomplete immunization among children aged 12-23 months in Ethiopia." University of the Western Cape, 2016. http://hdl.handle.net/11394/4989.

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Magister Public Health - MPH
Ethiopia has achieved its target for Millennium Development Goal 4 by recording 69 %reduction in its under-five mortality. The proportion of fully immunized children in Ethiopia has increased from 14 % in 2000 to 24 % in 2011. Though progress has been made, about 3 out of 4 children still remain incompletely immunized. The purpose of this study is to determine the socio-demographic and socioeconomic factors associated with incomplete immunization among children aged 12-23 months in Ethiopia. This study is based on secondary analysis of the 2011 Ethiopia Demographic and Health Survey. Information on 1,889 mothers of children aged 12–23 months were extracted from the children dataset. Records from vaccination cards and mothers’ self-reported data were used to determine vaccine coverage. The association between child immunization status and determinants of non-utilization of immunization services was assessed using bivariate and multivariate analyses. The findings of this study showed that the prevalence of incompletely immunized children is 70.9%. Children of mothers from the poor (AOR = 2.27; 95 % CI: 1.34 – 3.82) wealth quintile were more likely to be incompletely immunized. Children of mothers from Affar (AOR = 15.80; 95 % CI: 7.12 – 35.03), Amhara (AOR = 4.27; 95 %CI: 2.31 – 7.88), Oromiya (AOR = 8.10; 95 % CI: 4.60 – 14.25), Somali (AOR = 4.91;95 % CI: 2.65 – 9.10), Benishangul-Gumuz (AOR = 4.20; 95% CI: 2.34 – 7.57),Southern Nations Nationalities and Peoples’ (AOR = 4.76; 95 % CI: 2.53 – 8.94), Gambela (AOR = 7.75; 95 % CI: 3.68 – 16.30) and Harari (AOR = 3.22; 95 % CI: 1.77 –5.89) regions were more likely to be incompletely immunized. Mothers with inadequate exposure to media (AOR = 1.60; 95% CI: 1.21 – 2.14), who are not aware of community conversation programme (AOR = 1.80; 95% CI: 1.40 – 2.32) and who attended no antenatal care (AOR = 2.21; 95% CI: 1.72 – 2.83) were more likely to have incompletely immunized children. Despite efforts to increase rates of childhood immunization, the proportion of children with incomplete immunization in Ethiopia is considerably high. Therefore, targeted interventions at the identified socio-demographic factors are needed to increase immunization rates.

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Lai, Yuk-lin, and 賴玉蓮. "Analysis of incomplete survey data with application to the construction of social indicators of Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31215440.

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Lai, Yuk-lin. "Analysis of incomplete survey data with application to the construction of social indicators of Hong Kong /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19929523.

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Piiroja, Devrout Ricardo Adrien. "Coverage and factors associated with incomplete vaccination against diphtheria, tetanus and pertussis in infants aged 12 to 23 months: secondary analysis of the Demographic and Family Health Survey." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2021. http://hdl.handle.net/10757/656151.

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A cross-sectional study was conducted based on the secondary analysis of the Demographic and Family Health Survey (ENDES) 2019, with the objective of estimating the incomplete coverage of PTD and determining the factors associated with it in infants aged 12 to 23 months in Peru. Pearson's chi-square test was used for the bivariate analysis and the magnitude of the association was estimated using the crude (PRc) and adjusted (RPa) prevalence ratios. Incomplete DPT coverage was 12.4% (CI 11.88-14.79) for the entire population studied. Infants in the third order of birth or more (PRa: 1.37; CI 1.01-1.84) and infants born by non-institutionalized delivery were more likely than children whose delivery was institutionalized (PRa; 1.70; CI 1.15-2.54). The probability of having incomplete coverage decreased by having 6 or more prenatal check-ups (PRa; 0.58; CI 0.46-0.73), as well as living in rural areas compared to living in urban areas (PRa; 0.64; CI 0.48-0.85). Incomplete DPT vaccination in infants aged 12 to 23 months in Peru has a high level (> 10%), placing this population group at risk of suffering from these immunopreventable diseases and triggering outbreaks and epidemics in the community. The factors associated with incomplete vaccination are related to lower socioeconomic conditions and limited access to health services, which is why it is necessary to focus the interventions of the National Immunization Health Strategy to reverse this situation.
Se realizó un estudio transversal basado en el análisis secundario de la Encuesta Demográfica y de Salud Familiar (ENDES) 2019, con el objetivo de estimar la cobertura incompleta de DPT y determinar los factores asociados a la misma en infantes de 12 a 23 meses en el Perú. Se utilizó la prueba chi cuadrado de Pearson para el análisis bivariado y la magnitud de la asociación se estimó mediante las razones de prevalencia crudas (RPc) y ajustadas (RPa). La cobertura incompleta de DPT fue de 12.4% (IC 11.88-14.79) para toda la población estudiada. Mayores probabilidades de cobertura incompleta tuvieron los infantes en tercer orden de nacimiento o más (PRa: 1.37; IC 1.01-1.84) y los infantes nacidos por parto no institucionalizado con respecto a los infantes cuyo parto fue institucionalizado (PRa; 1,70; IC 1.15-2.54). Disminuyó la probabilidad de tener cobertura incompleta el contar con 6 o más controles prenatales (PRa; 0.58; IC 0.46-0.73), así como vivir en el área rural con respecto a vivir en el área urbana (PRa; 0.64; IC 0.48-0.85). La vacunación incompleta de DPT en infantes de 12 a 23 meses en el Perú tuvo un nivel alto (>10%), colocando a este grupo poblacional en riesgo de padecer estas enfermedades inmunoprevenibles y desencadenar brotes y epidemias en la comunidad. Los factores asociados a la vacunación incompleta estuvieron relacionados a menores condiciones socioeconómicas y al acceso limitado a servicios de salud por lo que es necesario focalizar las intervenciones de la Estrategia Sanitaria Nacional de Inmunizaciones para revertir esta situación.
Tesis

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MaseTshaba, Musa. "Incomplete sex re-assignment surgery and psychosocial functioning : a preliminary study." Thesis, University of Limpopo (Medunsa Campus), 2010. http://hdl.handle.net/10386/873.

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Minini, Pascal. "Modélisation des observations longitudinales incomplètes." Paris 11, 2004. http://www.theses.fr/2004PA11T060.

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Au cours des études longitudinales, des sujets sont observés afin de mesurer l'évolution une réponse d'intérêt. Le protocole de ces études prévoit de recueillir un certain nombre de réponses pour chaque sujet. Cependant, il est extrêmement rare que toutes les mesures prévues soient effectivement réalisées. L'analyse des données incomplètes est devenu un thème majeur de la statistique au cours des dernières années. De nombreuses méthodes ont été proposées, mais il est généralement impossible de s'assurer de leur validité. Il est désormais recommandé de réaliser une analyse de sensibilité, afin d'évaluer dans quelle mesure les résultats d'une étude peuvent être affectés par différentes hypothèses concernant le processus de données manquantes. Ce rapport souligne la nécessité de l'analyse de sensibilité, et montre comment cet objectif peut être atteint dans trois situations différentes, les données normales, les données binaires et les données de survie
In longitudinal studies, subjects are repeatedly observed to obtain measurements of some response. The protocol of such studies plans to collect a fixed number of responses for each subject, during a predefined follow-up period. However, it is extremely rare that all the planned measurements are actually performed. The analysis of incomplete data has become a major topic in statistics during the last years. Many methods have been proposed, but it is generally impossible to check their validity. It is now recommended to perform a sensitivity analysis, to evaluate the extent to which the results from a study can be affected by different assumptions regarding the missing data process. This report highlights the need for a sensitivity analysis, and shows how this aim can be achieved in three different situations, normal data, binary data and survival data

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Norman, Kathleen Elisabeth. "The effects of clonidine, cyproheptadine and baclofen on locomotor pattern in subjects with incomplete spinal cord injury /." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=42110.

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Most new cases of spinal-cord-injured (SCI) persons in Canada have incomplete loss of sensory and/or motor function, but only a minority are able to walk. The study of animal models of spinal cord injury, especially the chronic spinal cat, has shown that monoaminergic drugs can modulate locomotion and spinal reflexes. Clonidine, a noradrenergic agonist, and cyproheptadine, a serotonergic antagonist, have each been associated with improved walking in SCI subjects. Baclofen, a GABA agonist, is frequently prescribed for spasticity in SCI patients, but its effects on walking have not been quantified. The objective of this doctoral project was to compare the effects of clonidine, cyproheptadine and baclofen on walking in incomplete SCI subjects. Subjects were evaluated on a motorized treadmill. Severely disabled subjects required harness support for their evaluations. The treadmill and harness system are described in detail, and their potential uses in the evaluation and rehabilitation of gait are discussed. A repeated single-subject design was employed for the twelve subjects. The greatest effects were found in the the subjects with greater severity of disability. Cyproheptadine was associated with greatly reduced need for assistance, increases in maximum treadmill speed (MTS) and reduced clonus, among other improvements in walking patterns. Clonidine was associated with increases in MTS, and a generally more upright posture, among other improvements in walking patterns. Baclofen was not associated with changes in walking, although two subjects showed small improvements following washout of baclofen. Among subjects with less severe motor disability, drug effects were less marked. Following washout of cyproheptadine or clonidine, subjects frequently retained walking improvements such as increases in MTS and reduced need for assistance that had first been evident in the drug periods. The significance and implications of the drug effects and the retention of effects dur

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Chagny, Gaëlle. "Estimation adaptative avec des données transformées ou incomplètes. Application à des modèles de survie." Phd thesis, Université René Descartes - Paris V, 2013. http://tel.archives-ouvertes.fr/tel-00863141.

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Cette thèse présente divers problèmes d'estimation fonctionnelle adaptative par sélection d'estimateurs en projection ou à noyaux, utilisant des critères inspirés à la fois de la sélection de modèles et des méthodes de Lepski. Le point commun de nos travaux est l'utilisation de données transformées et/ou incomplètes. La première partie est consacrée à une procédure d'estimation par "déformation'', dont la pertinence est illustrée pour l'estimation des fonctions suivantes : régression additive et multiplicative, densité conditionnelle, fonction de répartition dans un modèle de censure par intervalle, risque instantané pour des données censurées à droite. Le but est de reconstruire une fonction à partir d'un échantillon de couples aléatoires (X,Y). Nous utilisons les données déformées (ф(X),Y) pour proposer des estimateurs adaptatifs, où ф est une fonction bijective que nous estimons également (par exemple la fonction de répartition de X). L'intérêt est double : d'un point de vue théorique, les estimateurs ont des propriétés d'optimalité au sens de l'oracle ; d'un point de vue pratique, ils sont explicites et numériquement stables. La seconde partie s'intéresse à un problème à deux échantillons : nous comparons les distributions de deux variables X et Xₒ au travers de la densité relative, définie comme la densité de la variable Fₒ(X) (Fₒ étant la répartition de Xₒ). Nous construisons des estimateurs adaptatifs, à partir d'un double échantillon de données, possiblement censurées. Des bornes de risque non-asymptotiques sont démontrées, et des vitesses de convergences déduites.

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Книги з теми "Incomplete Survey"

Driffill, John. Macroeconomic policy games with incomplete information: A survey. Coventry: University ofWarwick,Department of Economics, 1987.

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Schulz, E. Matthew. Controlling for rater effects when comparing survey items with incomplete Likert data. Iowa City, Iowa: ACT, Inc., 2001.

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Rendall, Michael, Bonnie Ghosh-Dastidar, Margaret Weden, and Zafar Nazarov. Multiple Imputation for Combined-Survey Estimation With Incomplete Regressors In One But Not Both Surveys. RAND Corporation, 2011. http://dx.doi.org/10.7249/wr887-1.

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Tang, Man-Lai, and Guo-Liang Tian. Incomplete Categorical Data Design. Taylor & Francis Group, 2019.

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Razo, Armando. Integration of Contextual Data. Edited by Lonna Rae Atkeson and R. Michael Alvarez. Oxford University Press, 2016. http://dx.doi.org/10.1093/oxfordhb/9780190213299.013.20.

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This chapter discusses a conceptual framework that clarifies the nature and importance of context in social scientific research. It first explains how context fits into survey analysis, then addresses major problems that hamper use and collection of contextual data: vague or incomplete conceptual definitions of “context” and lack of methodological guidance to collect and analyze contextual data. It suggests that systematic research and cumulative knowledge on contextual effects are constrained by two factors: the lack of standardized contextual variables across surveys and sporadic empirical inquiries. Finally, it outlines directions for future research with an eye toward advancing contextual data collection and analysis as well as ascertaining the impact of context on public opinion and political behavior. It presents statistical approaches to provide a blueprint for explicit measurements and analysis of contextual data and considers the need to modify conventional sampling techniques to capture relevant contextual variability.

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Tian, Guo-Liang. Incomplete Categorical Data Design: Non-Randomized Response Techniques for Sensitive Questions in Surveys. Taylor & Francis Group, 2013.

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Tang, Man-Lai, and Guo-Liang Tian. Incomplete Categorical Data Design: Non-Randomized Response Techniques for Sensitive Questions in Surveys. Taylor & Francis Group, 2016.

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Tang, Man-Lai, and Guo-Liang Tian. Incomplete Categorical Data Design: Non-Randomized Response Techniques for Sensitive Questions in Surveys. Taylor & Francis Group, 2016.

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Chong, Ji Y., and Michael P. Lerario. An Incidental Finding. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780190495541.003.0036.

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Intracranial aneurysms may be detected incidentally on imaging. Location and size of an intracranial aneurysm are helpful in stratifying risk of hemorrhage. Risk stratification is important for treatment decision-making. Modifiable risk factors associated with aneurysm growth and rupture (hypertension and tobacco use) should be addressed. Treatment needs to be individualized. Small aneurysms may be monitored. Surgery has been associated with neurological disability and cognitive impairment. Endovascular coiling may be associated with a higher rate of incomplete obliteration. There are no randomized trial data in patients with unruptured aneurysms.

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Zagare, Frank C. Game Theory, Diplomatic History and Security Studies. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198831587.001.0001.

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The main purpose of this book is to demonstrate, by way of example, the several advantages of using a formal game-theoretic framework to explain complex events, diplomatic history, and contentious interstate relationships, via causal mechanisms and rationality. Chapter 1 lays out the broad parameters and major concepts of the mathematical theory of games and its applications in the security studies literature. Chapter 2 explores a number of issues connected with the use of game-theoretic models to organize analytic narratives, both generally and specifically. Chapter 3 interprets the Moroccan crisis of 1905–6 in the context of an incomplete information game model. Chapter 4 surveys and evaluates several prominent attempts to use game theory to explain the strategic dynamic of the Cuban missile crisis of 1962. Chapter 5 offers a general explanation that answers all of the foundational questions associated with the Cuban crisis within the confines of a single, integrated, game-theoretic model with incomplete information. Chapter 6 uses the same game form to develop a logically consistent and empirically plausible explanation of the outbreak of war in Europe in early August 1914. Chapter 7 introduces perfect deterrence theory and contrasts it with the prevailing realist theory of interstate war prevention, and classical deterrence theory. Chapter 8 addresses the charge made by some behavioral economists (and many strategic analysts) that game theory is of limited utility for understanding interstate conflict behavior.

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Частини книг з теми "Incomplete Survey"

Kim, Jae Kwang, and Jun Shao. "Application to Survey Sampling." In Statistical Methods for Handling Incomplete Data, 265–98. 2nd ed. Boca Raton: Chapman and Hall/CRC, 2021. http://dx.doi.org/10.1201/9780429321740-10.

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Banerjee, Mohua, and Mihir K. Chakraborty. "Rough Logics: A Survey with Further Directions." In Incomplete Information: Rough Set Analysis, 579–600. Heidelberg: Physica-Verlag HD, 1998. http://dx.doi.org/10.1007/978-3-7908-1888-8_18.

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Meyden, Ron. "Logical Approaches to Incomplete Information: A Survey." In Logics for Databases and Information Systems, 307–56. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5643-5_10.

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Impagliazzo, Russell. "Using hard problems to derandomize algorithms: An incomplete survey." In Randomization and Approximation Techniques in Computer Science, 165–73. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/3-540-63248-4_14.

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Belin, Thomas R., Hemant Ishwaran, Naihua Duan, Sandra H. Berry, and David E. Kanouse. "Identifying Likely Duplicates by Record Linkage in a Survey of Prostitutes." In Applied Bayesian Modeling and Causal Inference from Incomplete-Data Perspectives, 319–29. Chichester, UK: John Wiley & Sons, Ltd, 2005. http://dx.doi.org/10.1002/0470090456.ch29.

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Namata, Galileo Mark, Hossam Sharara, and Lise Getoor. "A Survey of Link Mining Tasks for Analyzing Noisy and Incomplete Networks." In Link Mining: Models, Algorithms, and Applications, 107–33. New York, NY: Springer New York, 2010. http://dx.doi.org/10.1007/978-1-4419-6515-8_4.

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Kalinowski, Marcos, Michael Felderer, Tayana Conte, Rodrigo Spínola, Rafael Prikladnicki, Dietmar Winkler, Daniel Méndez Fernández, and Stefan Wagner. "Preventing Incomplete/Hidden Requirements: Reflections on Survey Data from Austria and Brazil." In Lecture Notes in Business Information Processing, 63–78. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-27033-3_5.

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Paulsson, Andreas, and Aron Larsson. "Survey-Based Multi-stakeholder Preference Elicitation with Relatively Incomplete and Possibly Disjoint Rank Orderings." In Contemporary Issues in Group Decision and Negotiation, 27–40. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77208-6_3.

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Andreoli, Michael T., and Dimitri T. Azar. "Incomplete LASIK Flap." In Difficult and Complicated Cases in Refractive Surgery, 97–101. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-55238-0_20.

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Eseonu, Kelechi, and Nicolas Beresford-Cleary. "Incomplete Spinal Cord Injury." In Spine Surgery Vivas for the FRCS (Tr & Orth), 97–98. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003201304-28.

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Тези доповідей конференцій з теми "Incomplete Survey"

Hao, Yunhong, and Jie Gao. "Foundations of Incomplete Contract Theory: A Survey." In 2009 International Conference on Computational Intelligence and Software Engineering. IEEE, 2009. http://dx.doi.org/10.1109/cise.2009.5363923.

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Robbeloth, Mike, and N. Bourbakis. "Recognizing objects from their incomplete representation: A survey." In 2016 7th International Conference on Information, Intelligence, Systems & Applications (IISA). IEEE, 2016. http://dx.doi.org/10.1109/iisa.2016.7785370.

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Lang, Jérôme. "Collective Decision Making under Incomplete Knowledge: Possible and Necessary Solutions." In Twenty-Ninth International Joint Conference on Artificial Intelligence and Seventeenth Pacific Rim International Conference on Artificial Intelligence {IJCAI-PRICAI-20}. California: International Joint Conferences on Artificial Intelligence Organization, 2020. http://dx.doi.org/10.24963/ijcai.2020/680.

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Most solution concepts in collective decision making are defined assuming complete knowledge of individuals' preferences and of the mechanism used for aggregating them. This is often unpractical or unrealistic. Under incomplete knowledge, a solution advocated by many consists in quanrtifying over all completions of the incomplete preference profile (or all instantiations of the incompletely specified mechanism). Voting rules can be `modalized' this way (leading to the notions of possible and necessary winners), and also efficiency and fairness notions in fair division, stability concepts in coalition formation, and more. I give here a survey of works along this line.

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Khera, Ashish, Arvind Sahasrabudhay, Ajay Jain, and Tushar Budhwar. "Current Industry Gaps Within CP and Coating Surveys." In ASME 2019 India Oil and Gas Pipeline Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/iogpc2019-4591.

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As per Indian regulations (OISD-STD-141, OISD-2014-SOP, PNGRB T4S, PNGRB IMS etc.), the mandatory requirement for the operators is to perform Cathodic Protection (CP) and/or Coating Integrity above ground survey every five (5) years. The individual Indirect Inspection (IDi) technique or techniques used for such surveys are Closed Interval Survey (CIP) On/ Off, Direct Current Voltage Gradient (DCVG), Current Attenuation Testing (CAT) and Alternating Current Voltage Gradient (ACVG). These techniques primarily assist in evaluating the CP performance, coating condition of the pipeline and locations of probable DC/ AC interferences. Usually these surveys are performed separately and integrated by their respective GPS coordinates to get a common chainage. As per prevailing practice in India, typically the pipeline operators perform a Closed Interval Survey (CIP) On/ Off survey and after reviewing the reports subsequently plan for conducting DCVG, CAT and/or ACVG for certain stretches only, where CIP indications are found. By the time the team is re-mobilized for these surveys the pipeline or environment conditions may be totally different. This may be due to season variability, accuracy of GPS (mapping, if at all conducted during the coating integrity survey), climatic conditions, access to right of way (RoW) due to cultivation / farming cycles, water table variance and eventually fluctuations in the insitu soil resistivity. In addition, interference from other CP sources in the RoW, which may have occurred during interim. All of this can lead to misalignment or incomplete analysis of the integrated consolidated survey data. In addition, these “indirect inspection” surveys are majorly dependent on the experience and training of the surveyor, resulting in extensive subjectivity on the survey results with very limited traceability of collected data. This is unlike the other integrity tools for assessing integrity of a pipeline, such as In-line Inspection (ILI) as well as hydrostatic testing, wherein it is compulsory to provide the pipeline owner recorded footprint of the raw data collected for authenticity. For the CP and coating integrity surveys, if these can be performed simultaneously along with workable recorded raw logs for each survey with recorded GPS position of the surveyor, for further analysis, this does lead to eradicating the subjectivity from the IDi surveyor and providing “true” authentic repeatable results. This paper provides case studies wherein results of legacy IDi surveys are compared to the results of performing all surveys together along with recorded raw logs.

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Lu, Chao, Xue-wei Li, and Hong-bo Pan. "Application of SVM and Fuzzy Set Theory for Classifying with Incomplete Survey Data." In 2007 International Conference on Service Systems and Service Management. IEEE, 2007. http://dx.doi.org/10.1109/icsssm.2007.4280164.

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Varga, Edit, Imre Horva´th, Zolta´n Rusa´k, Bram de Smit, and Han Broek. "Survey and Investigation of Hand Motion Processing Technologies for Compliance With Shape Conceptualization." In ASME 2004 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/detc2004-57710.

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An evergreen topic of human-computer interaction research is multi-modality. It has been considered important for the user interface of future computer aided conceptual design systems and what is hoped is that integration of, for instance, voice control, hand gesture/motion processing, and physical object scanning can increase both the semantic level and the efficiency of the interaction. In the area of computer mediated shape conceptualization, especially human hand motion detection and processing can play an important role. The authors’ research focuses on the study of the opportunities offered by hand motion processing in shape conceptualization. As a first step they have studied the state of the art and analyzed the technologies applicable to hand motion processing. This paper reports on the findings. The various technologies have been sorted in four categories: direct incomplete, direct complete, indirect incomplete and indirect complete detection. First, the principles supporting this categorization are explained in Section 2. The next four sections of the paper investigate the hand motion detection and processing technologies. Section 7 discusses the characteristics and operational parameters from the aspect of using hand motion for shape input in conceptual design. Our conclusion is that the currently known technologies do not absolutely support processing of a language of hand motions that is under development for creative shape conceptualization. Therefore, the hand motion language needs to be redesigned and adapted to the best technology.

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Ding, Zhengming, Ming Shao, and Yun Fu. "Robust Multi-view Representation: A Unified Perspective from Multi-view Learning to Domain Adaption." In Twenty-Seventh International Joint Conference on Artificial Intelligence {IJCAI-18}. California: International Joint Conferences on Artificial Intelligence Organization, 2018. http://dx.doi.org/10.24963/ijcai.2018/767.

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Multi-view data are extensively accessible nowadays thanks to various types of features, different view-points and sensors which tend to facilitate better representation in many key applications. This survey covers the topic of robust multi-view data representation, centered around several major visual applications. First of all, we formulate a unified learning framework which is able to model most existing multi-view learning and domain adaptation in this line. Following this, we conduct a comprehensive discussion across these two problems by reviewing the algorithms along these two topics, including multi-view clustering, multi-view classification, zero-shot learning, and domain adaption. We further present more practical challenges in multi-view data analysis. Finally, we discuss future research including incomplete, unbalance, large-scale multi-view learning. This would benefit AI community from literature review to future direction.

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Ferguson, Eric, Toby Dunne, Lloyd Windrim, Suchet Bargoti, Nasir Ahsan, and Waleed Altamimi. "Automated Painting Survey, Degree of Rusting Classification, and Mapping with Machine Learning." In Abu Dhabi International Petroleum Exhibition & Conference. SPE, 2021. http://dx.doi.org/10.2118/208119-ms.

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Abstract Objective Continuous fabric maintenance (FM) is crucial for uninterrupted operations on offshore oil and gas platforms. A primary FM goal is managing the onset of coating degradation across the surfaces of offshore platforms. Physical field inspection programs are required to target timely detection and grading of coating conditions. These processes are costly, time-consuming, labour-intensive, and must be conducted on-site. Moreover, the inspection findings are subjective and provide incomplete asset coverage, leading to increased risk of unplanned shutdowns. Risk reduction and increased FM efficiency is achieved using machine learning and computer vision algorithms to analyze full-facility imagery for coating degradation and subsequent ‘degree-of-rusting’ classification of equipment to industry inspection standards. Methods, Procedures, Process Inspection data is collected for the entirety of an offshore facility using a terrestrial scanner. Coating degradation is detected across the facility using machine learning and computer vision algorithms. Additionally, the inspection data is tagged with unique piping line numbers per design, fixed equipment tags, or unique asset identification numbers. Computer vision algorithms and the detected coating degradation are subsequently used as input to determine the ‘degree-of-rusting’ throughout the facility, and coating condition status is tagged to specific piping or equipment. The degree-of-rusting condition rating follows common industry standards used by inspection engineers (e.g., ISO 4628-3, ASTM D610-01, or European Rust Scale). Results, Observations, Conclusions Atmospheric corrosion is the number one asset integrity threat to offshore platforms. Utilizing this automatic coating condition technology, a comprehensive and objective analysis of a facility's health is provided. Coating condition results are overlaid on inspection imagery for rapid visualisation. Coating condition is associated with individual instances of equipment. This allows for rapid filtering of equipment by coating condition severity, process type, equipment type, etc. Fabric maintenance efficiencies are realized by targeting decks, blocks, or areas with the highest aggregate coating degradation (on process equipment or structurally, as selected by the user) and concentrating remediation efforts on at-risk equipment. With the automated classification of degree-of-rusting, mitigation strategies that extend the life of the asset can be optimised, resulting in efficiency gains and cost savings for the facility. Conventional manual inspections and reporting of coating conditions has low objectivity and increased risk and cost when compared to the proposed method. Novel/Additive Information Drawing on machine learning and computer vision techniques, this work proposes a novel workflow for automatically identifying the degree-of-rusting on assets using industry inspection standards. This contributes directly to greater risk awareness, targeted remediation strategies, improving the overall efficiency of the asset management process, and reducing the down-time of offshore facilities.

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Johnson, R. L., L. A. Durham, and D. S. Miller. "Approaches for Addressing MARSSIM Complications." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4646.

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The Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM) was developed as a multi-agency framework for supporting radioactive site closure in the United States. MARSSIM provides a coherent, technically defensible process for establishing that exposed surfaces (soil or structure) satisfy site cleanup requirements. Site cleanup requirements are assumed to be dose or risk-derived. Unfortunately, many sites have complications that challenge a direct application of MARSSIM. Example complications include decision documents requirements that are not MARSSIM-friendly, the potential for subsurface contamination, and incomplete characterization information. These types of complications are typically the rule, rather than the exception, for sites undergoing radiologically-driven remediation and closure. This paper discusses approaches used to circumvent MARSSIM-related closure issues, while still providing a technically defensible closure protocol that is consistent with the spirit of MARSSIM and acceptable to the regulatory and broader stakeholder community.

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Mentes, Ayhan, and Ismail H. Helvacioglu. "Review of Fuzzy Set Theory Applications in Safety Assessment for Marine and Offshore Industries." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-50244.

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Various safety analysis techniques have been generated in dealing with uncertain information over the past three decades. The safety assessment based on conventional risk methods may not be well suited with most problems possessing high level of contingencies in marine and offshore systems. In other words, the effect of less confidence, unreliable, missing or incomplete data in safety assessment is arduous to apply common safety and risk assessment techniques for maritime industry. Therefore, fuzzy logic based approaches are probably more appropriate to apply in carrying out safety assessment for maritime systems. This paper presents a survey of applications in fuzzy set theory for safety analysis to marine and offshore industries’ problems. The safety assessment methods are presented in detail by demonstrating their robust and weak points. Subsequently, the main results on the application of fuzzy set theory for safety assessment will be further explained. Finally, recommendations in undertaking developments into the field of maritime safety assessment will be given.

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Звіти організацій з теми "Incomplete Survey"

Coram, Alexander James, Allen Robert Kingston, and Simon Northridge. Cod catches from demersal and pelagic trawl gears in the Clyde estuary: results from an industry-led survey in 2016: a report on behalf of the Clyde Fishermen's Association. Marine Alliance for Science and Technology for Scotland (MASTS), August 2022. http://dx.doi.org/10.15664/10023.26247.

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[Extract from Foreword] This ‘cruise report’ is the first of a short series, reflecting the aspiration of the Clyde Fishermen’s Association to establish a rigorous sampling scheme to monitor changes in the abundance and distribution of cod (and later other gadoid species) within the Clyde area. The Scottish Oceans Institute was approached to provide independent scientific support in early 2016. A series of surveys was then conducted in 2016, 2017 and 2018. In each survey the SOI provided observers, collected data and wrote up a cruise report detailing the methods used and the location, numbers, weights, sex and maturity states of fish caught. Trials were halted after 2018 firstly because of pressing issues resulting from Brexit which absorbed any potentially available human and other resources, and secondly because of the COVID pandemic. The reports remained as unapproved and incomplete drafts until 2022. Picking up these reports again in 2022, we have responded to reviewers’ comments since made by Marine Scotland Science and have finalised all four reports in the 2016-2018 current series.

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Bortz, Tyler, Molly Davis, and Ryan Manuel. Plant community composition and structure monitoring at Fort Laramie National Historic Site: 2020 data report. National Park Service, April 2022. http://dx.doi.org/10.36967/nrds-2293003.

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This report presents the results of vegetation monitoring efforts in 2020 at Fort Laramie National Historic Site (FOLA) by the Northern Great Plains Inventory and Monitoring Network (NGPN) and the United States Geological Survey (USGS). This was the tenth year of combined monitoring efforts. Crew members from USGS visited 9 long-term monitoring plots to collect data on the plant communities at FOLA. This work is part of a long-term monitoring effort designed to provide a better understanding of the condition of the vegetation community at FOLA and how it changes over time. USGS staff measured species richness, herb-layer height, native and non-native species abundance, ground cover, and site disturbance at each of the nine plots. In plots where woody species were present, tree regeneration, tall shrub density, tree density, and woody fuel loads were also measured. Data collection at seven plots was incomplete, where only point-intercept, site disturbance, and invasive species presence data were collected, while in two plots the previously listed protocols as well as the quadrat protocol were performed. In 2020, the monitoring crews identified 44 unique plant species in 9 monitoring plots. Of those species, 19 were exotic species. In a majority of plots (5 of 9), there was a greater percent of native species cover compared to exotic species cover. However, exotic plants were found at every plot in FOLA. No rare species were observed during our surveys

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Liu, Rui, and Huan-jin Song. Can early surgery effectively treat incomplete cervical spinal cord injury? a protocol of systematic review. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, August 2020. http://dx.doi.org/10.37766/inplasy2020.8.0081.

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Kengsakul, Malika, Gatske Nieuwenhuyzen – de Boer, and Heleen van Beekhuizen. Radiological factors associated with residual disease after cytoreductive surgery for advanced ovarian cancer. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, January 2023. http://dx.doi.org/10.37766/inplasy2023.1.0059.

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Review question / Objective: Which radiological factors associated with incomplete cytoreduction (gross residual disease) after cytoreductive surgery (CRS) for advanced ovarian cancer? Condition being studied: Findings of CT scan and discussion in the multidisciplinary tumor board meeting (MDO) are crucial to determine the therapeutic strategy for individual ovarian cancer patients. Preferably, patients undergo primary cytoreductive surgery (CRS) followed by adjuvant chemotherapy. However, when complete cytoreduction is not considered feasible, neoadjuvant chemotherapy followed by interval cytoreductive surgery and adjuvant chemotherapy is indicated. In patients with advanced stage epithelial ovarian cancer (EOC), maximal cytoreduction to no gross residual tumor (complete cytoreduction) is known to associated with the best overall survival.

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Nair, Abhijit, and Hamed Humayid Mohammed Al Aamri. Enhanced recovery after surgery pathways for patients undergoing laparoscopic appendectomy- a systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, August 2022. http://dx.doi.org/10.37766/inplasy2022.8.0005.

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Review question / Objective: Does implementing enhanced recovery after surgery pathways improve outcomes in adult patients undergoing laparoscopic appendectomy when compared to conventional pathways? Condition being studied: Adult patients (more than 18 years) with acute appendicitis undergoing laparoscopic appendicectomy. Information sources: We will search all electronic databases. In published articles were outcome details appear incomplete, the corresponding author will be contacted the details will be sought. If not available, that outcome will be excluded from analysis.

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Sandeep, Bhushan, Huang Xin, and Xiao Zongwei. A comparison of regional anesthesia techniques in patients undergoing of video-assisted thoracic surgery: A network meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, February 2022. http://dx.doi.org/10.37766/inplasy2022.2.0003.

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Review question / Objective: Although video-assisted thoracoscopic surgery is a minimally invasive surgical technique, the pain remains moderate to severe. We comprehensively compared the regional anesthesia methods for postoperative analgesia in patients undergoing video-assisted thoracoscopic surgery. Eligibility criteria: All published full-article RCTs comparing the analgesic efficacy of investigated regional anesthesia technique or comparative blocks in adult patients undergoing any VATS were eligible for inclusion. There were no language restrictions. Moreover, we also excluded case reports, non-RCT studies, incomplete clinical trials, and any trials used multiple nerve blocks. We also excluded any conference abstracts which could not offer enough information about the study design, or by data request to the author.

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Choi, Geunjoo, HyoJin Kim, and Hyun Kang. Comparison of efficacy and safety of perioperaive sufentanil and remifentanil: a protocol for systematic review and meta-analysis protocol and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, July 2022. http://dx.doi.org/10.37766/inplasy2022.7.0070.

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Review question / Objective: The objective of this systematic review and meta-analysis of randomized controlled trials (RCTs) was to compare the efficacy and safety of perioperaive sufentanil and remifentanil use in patients receiving elective surgery under general anesthesia. Condition being studied: Patients receiving elective surgery under general anesthesia, and receving sufentanil or remifentanil during the operation. Information sources: We will search articles in MEDLINE, EMBASE, the Cochrane Central Register of Controlled Trials (CENTRAL), Web of Science, and Google Scholar from their inception up to August, 2022. To obtain more comprehensive search results, we will also search the ClinicalTrials.gov and cris.nih.go.kr for ongoing or incomplete clinical trials. We will also conduct a search of gray literature using OpenSIGLE.

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Bhushan, Sandeep, Huang Xin, and Xiao Zongwei. Ultrasound-guided erector spinae plane block for postoperative analgesia in patients undergoing liver surgery: what we might know from a meta-analysis of Randomized control trials. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, January 2022. http://dx.doi.org/10.37766/inplasy2022.1.0094.

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Condition being studied: ESPB as an emerging regional technique has been well established in many surgeries, including reduce opioid demands, decrease pain score and improver sleep quality, etc. But, apply ESPB in liver surgery is limiting and remains uncertain, it is time to conduct one meta-analysis to reveal the performance of ESPB in liver surgery. Eligibility criteria: All published full-article RCTs comparing the analgesic efficacy of ESPB with control in adult patients undergoing any liver surgeries were eligible for inclusion. There were no language restrictions, Moreover, we also excluded case reports, non-RCT studies, incomplete clinical trials, and any trials used multiple nerve blocks. We also excluded any conference abstracts which could not offer enough information about the study design, or by data request to the author.

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Prichard, Wilson. Unpacking ‘Tax Morale’: Distinguishing Between Conditional and Unconditional Views of Tax Compliance. Institute of Development Studies, August 2023. http://dx.doi.org/10.19088/ictd.2023.040.

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The concept of ‘tax morale’ seeks to capture an individual’s willingness (or unwillingness) to pay taxes. The study of tax morale in lower-income countries is significant for understanding “quasi-voluntary” tax compliance, popular support for tax reform programs, and the broader character of social contracts. While interest in tax morale research has surged over the past decade, the use of the concept in research has often been relatively broad and imprecise. This risks a lack of comparability across studies. More importantly, insufficiently nuanced research risks telling an incomplete or misleading story. As part of a broader effort for greater conceptual precision, this paper highlights the importance of distinguishing between conditional and unconditional understandings of tax morale.

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Lucas, Brian. Urban Flood Risks, Impacts, and Management in Nigeria. Institute of Development Studies (IDS), January 2021. http://dx.doi.org/10.19088/k4d.2021.018.

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This summary reviews evidence on the urban flooding impact, risk factors, and management and mitigation measures in Lagos and other cities in Nigeria. Flooding is a common problem every year in many cities across Nigeria, but the impacts of flooding are poorly documented. There is no consistent set of statistics at a national or sub-national level that can be used to compare the impacts of flooding across cities, and reports that focus on particular flood events are often incomplete. The literature notes the principal factors contributing to flood risk including uncontrolled urban growth, inadequate and poorly-maintained drainage systems, solid waste management practices, weakness in institutional capacity and coordination, and warning systems and public awareness. The evidence base for flood impacts, risks, and mitigation efforts at the city level in Nigeria is limited, and much of the information available is low quality, inconsistent, or outdated. Many rely on surveys of city residents rather than objective empirical data, and some of these surveys appear to be poorly designed. A significant number of the academic publications available have been published in non-mainstream journals without the usual level of academic peer review. Recent information is scarce, and a significant amount of the available evidence dates from 2011 and 2012, which coincides with an episode of nationwide flooding that was among the worst in Nigeria’s history.

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