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Gotowe bibliografie tematyczne / Stratified population

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Gotowa bibliografia na temat „Stratified population”

Autor: Grafiati

Data publikacji: 6 września 2023

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Artykuły w czasopismach na temat "Stratified population"

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Royle, J. Andrew, i Sarah J. Converse. "Hierarchical spatial capture-recapture models: modelling population density in stratified populations". Methods in Ecology and Evolution 5, nr 1 (5.12.2013): 37–43. http://dx.doi.org/10.1111/2041-210x.12135.

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Guo, Zhigang, Dominic M. Tucker, Christopher J. Basten, Harish Gandhi, Elhan Ersoz, Baohong Guo, Zhanyou Xu, Daolong Wang i Gilles Gay. "The impact of population structure on genomic prediction in stratified populations". Theoretical and Applied Genetics 127, nr 3 (24.01.2014): 749–62. http://dx.doi.org/10.1007/s00122-013-2255-x.

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Hasler, Caren, i Yves Tillé. "Fast balanced sampling for highly stratified population". Computational Statistics & Data Analysis 74 (czerwiec 2014): 81–94. http://dx.doi.org/10.1016/j.csda.2013.12.005.

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Ivchenko, G. I. "Parameter estimation for a stratified finite population". Journal of Soviet Mathematics 53, nr 6 (marzec 1991): 552–54. http://dx.doi.org/10.1007/bf01095357.

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Ruiz Espejo, Mariano, Housila P. Singh, Miguel Delgado Pineda i Saralees Nadarajah. "Optimal estimation of population variance using equilibrated stratified sampling from infinite populations". Journal of the Korean Statistical Society 37, nr 4 (grudzień 2008): 375–83. http://dx.doi.org/10.1016/j.jkss.2008.04.001.

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SAI, Shido. "Confidence Intervals for Population Mean under Stratified Sampling". Kodo Keiryogaku (The Japanese Journal of Behaviormetrics) 23, nr 2 (1996): 104–21. http://dx.doi.org/10.2333/jbhmk.23.104.

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Major, Tamás, Réka Gindele, Zsuzsanna Szabó, Zsuzsanna Kis, László Bora, Natália Jóni, Péter Bárdossy, Tamás Rácz i Zsuzsanna Bereczky. "The Stratified Population Screening of Hereditary Hemorrhagic Telangiectasia". Pathology & Oncology Research 26, nr 4 (26.01.2019): 2783–88. http://dx.doi.org/10.1007/s12253-019-00602-7.

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Yasmeen, Uzma, Muhammad Noor-ul-Amin i Muhammad Hanif. "Variance estimation in stratified adaptive cluster sampling". Statistics in Transition New Series 23, nr 1 (1.03.2022): 173–84. http://dx.doi.org/10.2478/stattrans-2022-0010.

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Abstract In many sampling surveys, the use of auxiliary information at either the design or estimation stage, or at both these stages is usual practice. Auxiliary information is commonly used to obtain improved designs and to achieve a high level of precision in the estimation of population density. Adaptive cluster sampling (ACS) was proposed to observe rare units with the purpose of obtaining highly precise estimations of rare and specially clustered populations in terms of least variances of the estimators. This sampling design proved to be more precise than its more conventional counterparts, including simple random sampling (SRS), stratified sampling, etc. In this paper, a generalised estimator is anticipated for a finite population variance with the use of information of an auxiliary variable under stratified adaptive cluster sampling (SACS). The bias and mean square error expressions of the recommended estimators are derived up to the first degree of approximation. A simulation study showed that the proposed estimators have the least estimated mean square error under the SACS technique in comparison to variance estimators in stratified sampling.

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Walsby, Anthony E. "Determining the photosynthetic productivity of a stratified phytoplankton population". Aquatic Sciences 63, nr 1 (marzec 2001): 18–43. http://dx.doi.org/10.1007/pl00022510.

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Mukerjee, Rahul, i Sujit K. Basu. "INVERSE SAMPLING FOR DOMAIN ESTIMATION IN A STRATIFIED POPULATION". Australian Journal of Statistics 35, nr 3 (wrzesień 1993): 293–302. http://dx.doi.org/10.1111/j.1467-842x.1993.tb01337.x.

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Rozprawy doktorskie na temat "Stratified population"

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Kirby, Christopher William. "An investigation of stratified population estimates". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq23364.pdf.

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Thompson, Cheryl L. "STRATIFIED LINKAGE ANALYSIS BASED ON POPULATION SUBSTRUCTURE". Case Western Reserve University School of Graduate Studies / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=case1175867246.

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Zhang, Qi. "Semi-Parametric Test Based on Spline Smoothing for Genetic Association Studies Under Stratified Populations". University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1172597104.

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Cabarrou, Bastien. "Prise en compte de l'hétérogénéité de la population âgée dans le schéma des essais cliniques de phase II en oncogériatrie". Thesis, Toulouse 1, 2019. http://www.theses.fr/2019TOU10004.

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Le cancer du sujet âgé est un réel problème de santé publique. L’incidence du cancer augmentant avec l’âge couplée au vieillissement général de la population font que plus de la moitié des tumeurs diagnostiquées aujourd’hui le sont chez des patients de plus de 65 ans. Cependant, cette population hétérogène a longtemps été exclue des essais cliniques et le manque de données prospectives rend difficile la prise en charge de ces patients. Plusieurs publications soulignent l’importance et la complexité de réaliser des essais cliniques dans cette population. Les schémas classiques ne prenant pas en compte l’hétérogénéité, les essais de phase II spécifiques aux sujets âgés sont rares et généralement stratifiés en sous-groupes définis selon un critère gériatrique ce qui augmente le nombre de patients à inclure et donc diminue la faisabilité. L’objectif de cette thèse est de présenter, comparer et développer des schémas de phase II adaptatifs stratifiés permettant de prendre en compte l’hétérogénéité de la population âgée. L’utilisation de ce type d’approche permet de réduire le nombre de patients à inclure tout en maintenant la puissance statistique et en contrôlant le risque d’erreur de type I. Ce qui implique une diminution du coût et de la durée de l’étude et donc une augmentation de la faisabilité. Afin d’améliorer l’efficacité de la recherche clinique en oncogériatrie, il est donc primordial d’utiliser des schémas adaptatifs stratifiés prenant en compte l’hétérogénéité de la population et permettant d’identifier un sous-groupe d’intérêt susceptible de pouvoir bénéficier (ou non) de la nouvelle thérapeutique
Elderly cancer is a real public health problem. With the overall aging population and the increased incidence of cancer, more than half of all tumors diagnosed today are in patients aged 65 years or older. However, this heterogeneous population has long been excluded from clinical trials and the lack from prospective data makes it difficult managing these patients. Many publications highlight the importance and the complexity of conducting clinical trials in this population. As classical phase II designs do not take into account the heterogeneity, elderly specific phase II clinical trials are very uncommon and generally conducted in specific subgroups defined by geriatric criteria which increases the number of patients to be included and thus reduces the feasibility. The objective of this thesis is to present, compare and develop stratified adaptive designs that address the heterogeneity of the elderly population. The use of this methodology can minimize the number of patients to be included while maintaining statistical power and controlling the type I error risk. This implies a reduction in the cost and duration of the study and thus increases the feasibility. In order to improve the efficiency of clinical research in geriatric oncology, it is essential to use stratified adaptive designs that take into account the heterogeneity of the population and make it possible to identify a subgroup of interest that might benefit (or not) from the new therapeutic

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Bradbury, David A. "The cognitive antecedents of psychosis-like (anomalous) experiences : variance within a stratified quota sample of the general population". Thesis, Manchester Metropolitan University, 2013. http://e-space.mmu.ac.uk/313171/.

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In the general population, psychosis-like experiences have been extensively studied under the psychometric rubric of schizotypy (psychosis-proneness). As such, Phase 1 of this thesis aimed to assess the distribution of schizotypal traits and associated personality correlates displayed within a quota sample of the general population stratified by Gender and Ageband, the emphasis being upon anomalous experiences (positive schizotypy). Respondents (N = 130) completed a battery of established self-report measures assessing thirteen areas of personal experience. Correlational analysis revealed that eleven of the measures of ostensibly anomalous experiences possessed significant intercorrelations. Subsequent principal components analysis identified three factors accounting for 64.91% of the total variance; the factor accounting for the greatest proportion of variance (42.97%) was interpreted as representing a psychological disposition towards reporting ‘Anomalous Cognitions’. The other two factors are named ‘Lifeview System’ (12.60% of total variance) and ‘Social Adaptation Skills’ (9.34% of total variance). From the principal factor inclusion criteria for Phase 2 of the research are explicated. No significant mean Gender differences were revealed for the six self-report measures that provided unique contributions toward anomalous cognitions, the two self-report measures that uniquely contributed toward a lifeview system, or for the single self-report measure that uniquely contributed toward social adaptation skills. Additionally, four of the nine self-report measures which provided unique factorial contributions generated significant mean differences between Agebands, with a further three providing trends toward significant mean differences. Implications for the role of anomalous cognitions, a framework for a lifeview system, and social adaptation skills with regard to psychosis-proneness are discussed. From the primary factor (anomalous cognitions), three experimental groups were identified for cognitive testing: respondents scoring 1) ≤ 20th percentile; 2) 10% ± the mean; and 3) ≥ 80th percentile. This procedure provided a total of 78 participants (three x 26) for Phase 2 testing. Phase 2 of this thesis sought to identify some of the cognitive mechanisms underpinning subclinical anomalous cognitions with a view to deciphering which measures best predicted experimental group membership. A comprehensive literature review highlighted six domains of cognition, five accompanying self-report measures, and two measures of intelligence functioning (verbal and fluid/visuoconstructive), which, following previous research, were utilised as covariate measures. Based on prescribed delineation points, participants were allocated, according to scores on the primary factor from Phase 1, to one of three experimental groups (low-, mid, and high-anomalous cognitions). Of the six cognitive domains—1) sustained visual attention; 2) false (illusory) memory; 3) probability reasoning (decision making); 4) object recognition; 5) reality monitoring; and 6) self-monitoring—four succeeded in eliciting significant mean differences between experimental groups with the noted exceptions of sustained visual attention and self-monitoring. Subsequent canonical discriminant analyses identified that the best predictors of XPG membership were the number of critical lures recognised on the false memory test, the number of correct responses and confidence when uncertain on the object recognition test, plus two self-report measures pertaining to comorbid psychopathology and the vividness of visual imagery. In light of previous research, the inclusion of fasle (illusory) memory biases, the comorbidity of mental pathology (especially, depressive and anxiety-related symptoms), and the vividness of visual imagery are unsurprising; however, the two object recognition variables (the ‘number of correct responses’ and ‘confidence when uncertain’) offer exciting avenues for future research into the continuum of psychosis. Moreover, the ‘confidence when uncertain’ data from the object recognition test (perceptual) and the probability reasoning (decision making) data from the Beads test suggest that cognitive underconfidence may well be an enduring personality disposition in those reporting elevated levels of anomalous cognitions, including positive and disorganised schizotypal personality traits. The results of Phase 2 add confirmatory evidence to previous research suggestive of memory and perceptual biases plus comorbid psychopathology and the vividness of visual imagery as being integral to the psychogenesis of psychosis-like (anomalous) symptomatology.

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Kiechl, Stefan, i Nadia Steiber. "Strong or Weak Handgrip? Normative Reference Values for the German Population across the Life Course Stratified by Sex, Age, and Body Height". Public Library of Science, 2016. http://dx.doi.org/10.1371/journal.pone.0163917.

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Handgrip strength is an important biomarker of healthy ageing and a powerful predictor of future morbidity and mortality both in younger and older populations. Therefore, the measurement of handgrip strength is increasingly used as a simple but efficient screening tool for health vulnerability. This study presents normative reference values for handgrip strength in Germany for use in research and clinical practice. It is the first study to provide normative data across the life course that is stratified by sex, age, and body height. The study used a nationally representative sample of test participants ages 17-90. It was based on pooled data from five waves of the German Socio-Economic Panel (2006-2014) and involved a total of 11,790 persons living in Germany (providing 25,285 observations). Handgrip strength was measured with a Smedley dynamometer. Results showed that peak mean values of handgrip strength are reached in men's and women's 30s and 40s after which handgrip strength declines in linear fashion with age. Following published recommendations, the study used a cut-off at 2 SD below the sex-specific peak mean value across the life course to define a "weak grip". Less than 10% of women and men aged 65-69 were classified as weak according to this definition, shares increasing to about half of the population aged 80-90. Based on survival analysis that linked handgrip strength to a relevant outcome, however, a "critically weak grip" that warrants further examination was estimated to commence already at 1 SD below the group-specific mean value.

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Žakienė, Inesa. "Horvico ir Tompsono įvertinio dispersijos vertinimas". Master's thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120813_131528-29461.

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Šiame magistro diplominiame darbe, naudojant skirtingas atstumo funkcijas ir kalibravimo lygtis, išvedami Horvico ir Tompsono įvertinio dispersijos įvertinių svoriai. Tokiu būdu, sukonstruojami aštuoni nauji Horvico ir Tompsono įvertinio dispersijos įvertiniai. Naudojant Teiloro ištiesinimo metodą pateikiamos sukonstruotų įvertinių apytikslės dispersijos ir pasiūlyti šių dispersijų įvertiniai. Be to, darbe atliekamas matematinis modeliavimas, kurio eksperimentai atlikti naudojant darbo autorės sukurtas MATLAB programas. Matematinio modeliavimo tikslas - naujus įvertinius palyginti tarpusavyje ir su standartiniu įvertiniu. Tiriama, kaip įvertinių tikslumas priklauso nuo pasirinkto imties plano.
In this master's graduation work, the weights of estimators of Horvitz & Thompson estimator of variance are defined by using some different distance function and calibration equations. In such a way, the new eight estimators of Horvitz & Thompson estimator of variance were constructed. Using the Taylor linearization method the approximate variances of the constructed estimators were derived. The estimators of the variances of these estimators are proposed as well. Also we perform here a mathematical modeling using MATLAB program. The aim of this mathematical modeling is to compare the new estimators with each other and with a standard one. We analyze also how the accuracy of estimators depends of selected sampling design.

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Chavarria, Pedro Mazier. "Assessing the impact of feral hog populations on the natural resources of Big Thicket National Preserve". [College Station, Tex. : Texas A&M University, 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1212.

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Pasam, Raj Kishore [Verfasser], Andreas [Akademischer Betreuer] Graner, Klaus [Akademischer Betreuer] Pillen i Frank [Akademischer Betreuer] Ordon. "Development of stratified barley populations for association mapping studies / Raj Kishore Pasam. Betreuer: Andreas Graner ; Klaus Pillen ; Frank Ordon". Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2012. http://d-nb.info/1026043166/34.

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Adiyanti, Sri. "A method to estimate chlorophyll-a concentration in the surface layer of a stratified lake from surface layer temperature time series, meteorogical fluxes, a knowledgeof blue-to-red peak absorption ratio and dissolved organic matter concentration /". Connect to this title, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0071.

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Książki na temat "Stratified population"

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Canada. Dept. of Fisheries and Oceans. Pacific Region. Science Branch., red. The 1994 Stellako River sockeye salmon (Oncorhynchus nerka) escapement: Evaluation of pooled Petersen and stratified mark-recapture estimates of a known population. Delta, B.C: Fisheries and Oceans Canada, 2000.

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Canada. Fisheries and Oceans Canada. Incorporating fixed and repeat sets in the stratified random survey for groundfish in the Southern Gulf of St. Lawrence. Ottawa: Fisheries and Oceans Canada, 1995.

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Maddah, Samia, Musa Fateel, Hani Maddah i Muhammad AlKarashi. A Proposed Program for Protecting Youth from Intellectual Deviation in the Cooperation Council for the Arab States of the Gulf. Naif University Press, 2021. http://dx.doi.org/10.26735/978-603-8235-58-4.

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This study aims to identify the measures taken by the countries of the Gulf Cooperation Council in the face of intellectual deviation among youth. The target is to reveal the causes of intellectual deviation among young people in the countries of the Gulf Cooperation Council (GCC) and to develop a proposed program to immunize the youth from intellectual deviation in the GCC countries. The researcher applies the descriptive and analytical method in this study, and the study tool used is the questionnaire. The study population consists of all young citizens in the countries of the Gulf Cooperation Council, and the sample is stratified random. This study reaches a set of results, including the following: Economic measures are the most common measures taken by GCC countries to confront the intellectual deviation among young people. Then come the institutional measures, then the social measures. The media work to criticize and analyze the problem of intellectual deviation and thus contribute to strengthening cohesion within society. The upbringing patterns used by contemporary Gulf families contribute to immunizing their children from intellectual deviation. Among the recommendations the study makes are the following: The concerted efforts of state agencies and community institutions in the GCC countries, with the cooperation of individuals and families, to discover early manifestations of intellectual deviation Adopting a promising new vision for sustainable development, and engaging youth in its implementation in the GCC countries. Implementing strategic plans to immunize youth from delinquency, with a community partnership

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Zhang, Weiya, i Michael Doherty. Guidelines. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199668847.003.0037.

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A number of treatment guidelines have been developed to optimize the treatment of osteoarthritis, some of which were recently updated. Fifty-one non-pharmacological, pharmacological, and surgical treatments are addressed in these guidelines but only two (oral opioid and intra-articular steroid injection) reach the minimal clinically important difference above placebo. Recommendations for these treatments vary depending on joint sites, risk:benefit ratio, and population. Exercise, self-management, and weight reduction if obese are universally recommended. While topical non-steroidal anti-inflammatory drugs (NSAIDs) remain a safe first-line drug option, the safety of paracetamol, the universally recommended first-line oral analgesic is increasingly questioned. Other analgesics such as oral NSAIDs (including selective cyclooxygenase 2 inhibitors), opioids, and antidepressants should be used according to patient characteristics and comorbidities. Nutraceuticals and complementary medicines remain controversial. While lavage is not recommended, total joint replacement is still considered as an effective treatment for the later stage of the disease irrespective of lack of placebo (sham) controlled trials. Stratified care has been attempted for recommendation according to joint affected and comorbidities but there is no evidence to support whether this can improve treatment outcomes. Guideline development groups differ in their composition and methodology. While the overall quality of guidelines has been improved, their applicability remains poor. Of the various factors that may influence implementation, suboptimal publishing and the efficacy paradox need to be recognized as important barriers.

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Bowen, Raven. Work, Money and Duality. Policy Press, 2021. http://dx.doi.org/10.1332/policypress/9781447358800.001.0001.

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This book provides readers a rare opportunity to hear from some of the most hidden off-street sex workers in the population, those living dual lives, trading sex alongside ‘square’ mainstream employment. Stereotypes about who trades sex, of ‘exiting’ and transitioning to and from sex work as being chaotic, as well as simplistic, binary framings of sex work as something one is either in or out of, trapped or survived, are challenged by these sex workers whose practices uncover a fluid Continuum of Sex Industry Work and Square Work (SIWSQ) Involvement. Sex workers (Contributors) share lived experiences of combating labour precarity and insecure work, concerns about Brexit, and the UK Whorearchy that stratifies the sex industry and influences pricing and value, along with the stress of keeping secrets while living under the constant threat of being outed. Contributors engage in skilful stigma-avoidance, selective disclosure, on-and offline audience/information segregation, and manage people and devices to conceal stigmatised work in the digital age. The phenomenon of duality is thoroughly examined and in doing so we learn about the impacts of constructing a precarious labour markets while legislating poverty, and the lies we propagate about who trades sex and how we treat them. Ultimately, those living dual lives do so in response to economic conditions that we co-create. Our focus must be on reshaping the structures, systems and social forms that circumscribe our social realities and not in the vilification of these innovators.

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Części książek na temat "Stratified population"

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Göb, Rainer, i Arne Müller. "Conformance Analysis of Population Means under Restricted Stratified Sampling". W Frontiers in Statistical Quality Control 9, 237–61. Heidelberg: Physica-Verlag HD, 2010. http://dx.doi.org/10.1007/978-3-7908-2380-6_16.

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Ruel, Erin. "How Do We Make Disproportionate Stratified Samples Representative of the Population?" W 100 Questions (and Answers) About Survey Research, 39–40. 2455 Teller Road, Thousand Oaks California 91320: SAGE Publications, Inc., 2019. http://dx.doi.org/10.4135/9781506348803.n36.

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Sisodia, B. V. S., i Dhirendra Singh. "Calibration Approach-Based Estimators for Finite Population Mean in Multistage Stratified Random Sampling". W Forum for Interdisciplinary Mathematics, 105–23. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-1476-0_7.

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Nandram, B., i J. Sedransk. "Bayesian Inference For The Mean of a Stratified Population When There Are Order Restrictions". W Lecture Notes in Statistics, 309–22. New York, NY: Springer New York, 1995. http://dx.doi.org/10.1007/978-1-4612-2546-1_9.

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Johnson, Norman L., Samuel Kotz i Xizhi Wu. "Stratified populations: grading". W Inspection Errors for Attributes in Quality Control, 181–91. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4899-3196-2_12.

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Nickanor, Ndeyapo, Lawrence Kazembe i Jonathan Crush. "Food Insecurity, Food Sourcing and Food Coping Strategies in the OOO Urban Corridor, Namibia". W Transforming Urban Food Systems in Secondary Cities in Africa, 169–90. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-93072-1_9.

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AbstractThe urbanizing world population has seen increased food insecurity in urban spaces, a result of unsustainable food systems, growing inequalities and weak urban governance that lacks urban food strategies. To improve our knowledge of household strategies employed to survive in urban spaces, we conducted a household survey to examine the relationship between coping strategies,food insecurity and dietary diversity in the secondary cities corridor of Oshakati-Ongwediva-Ondangwa (OOO) in Northern Namibia. The data were collected from 853 households, using a cluster-stratified sampling design. Household food insecurity in the corridor was77%, while the mean dietary diversity was less than 5. These measures differed by coping strategy andfood sourcing mechanism. The most common coping strategy was to rely on less preferred and less expensive foods (67%). Rural–urban food transfers were another common strategy (55%), while some households grow some of their own food in rural areas (23%). Urban agriculture is very limited as are informal social protection strategies such as sharing meals, borrowing from neighbours and providing food to neighbours or other households in the community.

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Raimbault, Benjamin, i Pierre-Benoît Joly. "The Emergence of Technoscientific Fields and the New Political Sociology of Science". W Sociology of the Sciences Yearbook, 85–106. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-61728-8_4.

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AbstractThis chapter conceptualizes the emergence of a techno-scientific field (TSF) as a multiscalar and progressive establishment of a new set of epistemic and social rules. Drawing on science and technology studies and field theories, we design an original conceptual framework that allows us to formulate three propositions to characterize the process of emergence of a TSF. We use the emergence of synthetic biology (Synbio) as a ‘laboratory’ to test this framework. Each proposition refers to a determinant dimension in the process of emergence—heterogeneity, hierarchy, and autonomy. First, we claim that heterogeneity (of disciplines, research questions, visions, social norms) is constitutive of the emergence of a new TSF. Second, the population of Synbio researchers is highly stratified; a core group of scientific entrepreneurs (incumbents and challengers) plays an active role in the process of emergence. Third, strategies for the control of external resources are crucial to the structuration of the field, which is mirrored by the prominent role of core-group members as boundary spanners. An original scientometric approach is used to create specific variables that allow us to investigate both network and field structural dynamics bridging qualitative and quantitative approaches.

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Prabowo, Adi Gumelar Cakra, Prihatin Lumbanraja i Rulianda Purnomo Wibowo. "The Influence of Leadership, Motivation and Reward on Turnover Intention with Job Satisfaction as an Intervening Variable". W Proceedings of the 19th International Symposium on Management (INSYMA 2022), 638–47. Dordrecht: Atlantis Press International BV, 2022. http://dx.doi.org/10.2991/978-94-6463-008-4_80.

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AbstractOne form of employee behavior in the organization is the desire to resign (Turnover Intentions), which leads to the employee’s decision to resign from his job. The company under scrutiny is a distributor of agricultural & plantation fertilizers in the Deli Serdang area, with market areas covering Aceh (NAD), North Sumatra, West Sumatra, Riau, and Kalimantan. The study analyzed the influence of leadership, motivation, and reward on the turnover intention with job satisfaction as intervening variables. This research method was explanatory research with a quantitative approach. The research population of all employees in the company was 100 people. This research instrument used a questionnaire with SEM analysis technique based on variance, namely Partial Least Square. The sampling technique was proportionate stratified random sampling, permanent and contract employees. The findings of this study suggest that leadership has a favorable but not statistically significant impact on job satisfaction. Job satisfaction is influenced by motivation in a positive but non-significant way. Job satisfaction is influenced by reward in a positive but not statistically significant way. Turnover Intention is influenced by leadership in a favorable and important way. Turnover Intention is influenced by motivation in a favorable and important way. Turnover Intention is influenced by job satisfaction in a positive and significant way.

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Driedger, S. Michelle, Gabriela Capurro, Cindy Jardine i Jordan Tustin. "Opportunities and Perils of Public Consultation in the Creation of COVID-19 Vaccine Priority Groups". W Democratizing Risk Governance, 385–413. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-24271-7_14.

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AbstractThe management of any Public Health Emergency of International Concern (PHEIC), such as COVID-19, requires several strategies: public health surveillance and active testing of suspected cases, isolating those with the disease as well as their contacts, providing risk communication messaging for actions that people can adopt to protect themselves and their families, and distribution of available vaccines once approved. Anticipating scarcity in supply, the National Advisory Committee on Immunization, tasked with providing independent advice and recommendations on immunizations for the Public Health Agency of Canada, developed preliminary recommendations for prioritization of COVID-19 vaccines before any vaccines were even authorized for distribution in Canada. We explore in this chapter the mechanisms used to establish preliminary recommendations for COVID-19 vaccine priority groups, including different strategies for public and stakeholder engagement in those recommendations, and how three provinces made operational decisions to implement vaccine delivery within their jurisdiction. We highlight specific opportunities and challenges when the general public is engaged in evaluating prioritization recommendations, particularly when those who are consulted may not necessarily reflect the population diversity underlying equity considerations. We share public comments about COVID-19 vaccine priority groups from age-stratified (18–34 years; 35–54 years; 55 years and older) mixed-gender focus groups in Vancouver, Winnipeg, Toronto, and Ottawa, conducted in December 2020.

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Galkovskaya, Galina A., i Inessa F. Mityanina. "Morphological structure and functional patterns of Keratella cochlearis (Gosse) populations in stratified lakes". W Rotifer Symposium V, 119–28. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0465-1_14.

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Streszczenia konferencji na temat "Stratified population"

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Singh, G. K., D. K. Rao i M. G. M. Khan. "Calibration estimator of population mean in stratified random sampling". W 2014 Asia-Pacific World Congress on Computer Science and Engineering (APWC on CSE). IEEE, 2014. http://dx.doi.org/10.1109/apwccse.2014.7053875.

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Megha i Sangeeta Malik. "Small Area Estimation of Population Parameter under Stratified Sampling". W 2022 3rd International Conference on Computing, Analytics and Networks (ICAN). IEEE, 2022. http://dx.doi.org/10.1109/ican56228.2022.10007233.

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Rao, D. K., M. G. M. Khan i K. G. Reddy. "Stratified calibration estimator of population mean using multi-auxiliary information". W 2015 2nd Asia-Pacific World Congress on Computer Science and Engineering (APWC on CSE). IEEE, 2015. http://dx.doi.org/10.1109/apwccse.2015.7476233.

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Pandey, R., K. Yadav i N. S. Thakur. "Combined Exponential Type Estimators of Population Mean in Stratified Random Sampling". W International Conference on Recent Advances in Mathematics, Statistics and Computer Science 2015. WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789814704830_0027.

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Yunitaningtyas, Kristiana, Indahwati Indahwati, Muhammad Nur Aidi i Santi Susanti. "The Bootstrap Stratified Random Sampling in Finite Population for Traffic Survey Data". W Proceedings of the 1st International Conference on Statistics and Analytics, ICSA 2019, 2-3 August 2019, Bogor, Indonesia. EAI, 2020. http://dx.doi.org/10.4108/eai.2-8-2019.2290544.

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Koyuncu, Nursel. "Efficient combined estimators of population mean using auxiliary attribute under stratified random sampling". W 11TH INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND APPLIED MATHEMATICS 2013: ICNAAM 2013. AIP, 2013. http://dx.doi.org/10.1063/1.4825795.

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Özel, Gamze, i Cem Kadılar. "A new kind estimator for the population mean in the stratified random sampling". W PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON NUMERICAL ANALYSIS AND APPLIED MATHEMATICS 2014 (ICNAAM-2014). AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4912850.

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Braeken, Dionne, Gernot Rohde, Frits Franssen, Johanna Driessen, Tjeerd van Staa, Patrick Souverein, Emiel Wouters i Frank de Vries. "Risk of CAP in COPD stratified by smoking status: A population-based cohort study in the UK". W ERS International Congress 2016 abstracts. European Respiratory Society, 2016. http://dx.doi.org/10.1183/13993003.congress-2016.oa1504.

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Sung, Victor, Erin Furr-Stimming, Shoshana Reshef, Rosa Willock, Rinat Ribalov, Sarah Brighton i Sam Leo. "Baseline Characteristics and Treatment Patterns of a Global Huntington Disease Population Stratified by Chorea Severity (P2-11.011)". W 2023 Annual Meeting Abstracts. Lippincott Williams & Wilkins, 2023. http://dx.doi.org/10.1212/wnl.0000000000202020.

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Antón, X., J. Casas, A. de Basagoiti, J. Goikoetxea, E. Bereciartua, M. Ligros, J. Barroso i B. Moñino. "4CPS-118 Health outcomes in a cohort of HIV+ patients stratified using the Kaiser Permanente pyramid population-based risk stratification model". W 27th EAHP Congress, Lisbon, Portugal, 22-23-24 March 2023. British Medical Journal Publishing Group, 2023. http://dx.doi.org/10.1136/ejhpharm-2023-eahp.130.

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Raporty organizacyjne na temat "Stratified population"

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Kott, Phillip S. Calibration-Weighting a Stratified Simple Random Sample with SUDAAN. RTI Press, marzec 2022. http://dx.doi.org/10.3768/rtipress.2022.mr.0048.2204.

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This report shows how to apply the calibration-weighting procedures in SAS-callable SUDAAN (Version 11) to a stratified simple random sample drawn from a complete list frame for an establishment survey. The results are calibrated weights produced via raking, raking to a size variable, and pseudo-optimal calibration that potentially reduce and appropriately measure the standard errors of estimated totals. The report then shows how to use these procedures to remove selection bias caused by unit nonresponse under a plausible response model. Although unit nonresponse is usually assumed to be a function of variables with known population or full-sample estimated totals, calibration weighting can often be used when nonresponse is assumed to be a function of a variable known only for unit respondents (i.e., not missing at random). When producing calibrated weights for an establishment survey, one advantage the SUDAAN procedures have over most of their competitors is that their linearization-based variance estimators can capture the impact of finite-population correction.

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Hajarizadeh, Behzad, Jennifer MacLachlan, Benjamin Cowie i Gregory J. Dore. Population-level interventions to improve the health outcomes of people living with hepatitis B: an Evidence Check brokered by the Sax Institute for the NSW Ministry of Health, 2022. The Sax Institute, sierpień 2022. http://dx.doi.org/10.57022/pxwj3682.

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Background An estimated 292 million people are living with chronic hepatitis B virus (HBV) infection globally, including 223,000 people in Australia. HBV diagnosis and linkage of people living with HBV to clinical care is suboptimal in Australia, with 27% of people living with HBV undiagnosed and 77% not receiving regular HBV clinical care. This systematic review aimed to characterize population-level interventions implemented to enhance all components of HBV care cascade and analyse the effectiveness of interventions. Review questions Question 1: What population-level interventions, programs or policy approaches have been shown to be effective in reducing the incidence of hepatitis B; and that may not yet be fully rolled out or evaluated in Australia demonstrate early effectiveness, or promise, in reducing the incidence of hepatitis B? Question 2: What population-level interventions and/or programs are effective at reducing disease burden for people in the community with hepatitis B? Methods Four bibliographic databases and 21 grey literature sources were searched. Studies were eligible for inclusion if the study population included people with or at risk of chronic HBV, and the study conducted a population-level interventions to decrease HBV incidence or disease burden or to enhance any components of HBV care cascade (i.e., diagnosis, linkage to care, treatment initiation, adherence to clinical care), or HBV vaccination coverage. Studies published in the past 10 years (since January 2012), with or without comparison groups were eligible for inclusion. Studies conducting an HBV screening intervention were eligible if they reported proportion of people participating in screening, proportion of newly diagnosed HBV (participant was unaware of their HBV status), proportion of people received HBV vaccination following screening, or proportion of participants diagnosed with chronic HBV infection who were linked to HBV clinical care. Studies were excluded if study population was less than 20 participants, intervention included a pharmaceutical intervention or a hospital-based intervention, or study was implemented in limited clinical services. The records were initially screened by title and abstract. The full texts of potentially eligible records were reviewed, and eligible studies were selected for inclusion. For each study included in analysis, the study outcome and corresponding 95% confidence intervals (95%CIs) were calculated. For studies including a comparison group, odds ratio (OR) and corresponding 95%CIs were calculated. Random effect meta-analysis models were used to calculate the pooled study outcome estimates. Stratified analyses were conducted by study setting, study population, and intervention-specific characteristics. Key findings A total of 61 studies were included in the analysis. A large majority of studies (study n=48, 79%) included single-arm studies with no concurrent control, with seven (12%) randomised controlled trials, and six (10%) non-randomised controlled studies. A total of 109 interventions were evaluated in 61 included studies. On-site or outreach HBV screening and linkage to HBV clinical care coordination were the most frequent interventions, conducted in 27 and 26 studies, respectively. Question 1 We found no studies reporting HBV incidence as the study outcome. One study conducted in remote area demonstrated that an intervention including education of pregnant women and training village health volunteers enhanced coverage of HBV birth dose vaccination (93% post-intervention, vs. 81% pre-intervention), but no data of HBV incidence among infants were reported. Question 2 Study outcomes most relevant to the HBV burden for people in the community with HBV included, HBV diagnosis, linkage to HBV care, and HBV vaccination coverage. Among randomised controlled trials aimed at enhancing HBV screening, a meta-analysis was conducted including three studies which implemented an intervention including community face-to-face education focused on HBV and/or liver cancer among migrants from high HBV prevalence areas. This analysis demonstrated a significantly higher HBV testing uptake in intervention groups with the likelihood of HBV testing 3.6 times higher among those participating in education programs compared to the control groups (OR: 3.62, 95% CI 2.72, 4.88). In another analysis, including 25 studies evaluating an intervention to enhance HBV screening, a pooled estimate of 66% of participants received HBV testing following the study intervention (95%CI: 58-75%), with high heterogeneity across studies (range: 17-98%; I-square: 99.9%). A stratified analysis by HBV screening strategy demonstrated that in the studies providing participants with on-site HBV testing, the proportion receiving HBV testing (80%, 95%CI: 72-87%) was significantly higher compared to the studies referring participants to an external site for HBV testing (54%, 95%CI: 37-71%). In the studies implementing an intervention to enhance linkage of people diagnosed with HBV infection to clinical care, the interventions included different components and varied across studies. The most common component was post-test counselling followed by assistance with scheduling clinical appointments, conducted in 52% and 38% of the studies, respectively. In meta-analysis, a pooled estimate of 73% of people with HBV infection were linked to HBV clinical care (95%CI: 64-81%), with high heterogeneity across studies (range: 28-100%; I-square: 99.2%). A stratified analysis by study population demonstrated that in the studies among general population in high prevalence countries, 94% of people (95%CI: 88-100%) who received the study intervention were linked to care, significantly higher than 72% (95%CI: 61-83%) in studies among migrants from high prevalence area living in a country with low prevalence. In 19 studies, HBV vaccination uptake was assessed after an intervention, among which one study assessed birth dose vaccination among infants, one study assessed vaccination in elementary school children and 17 studies assessed vaccination in adults. Among studies assessing adult vaccination, a pooled estimate of 38% (95%CI: 21-56%) of people initiated vaccination, with high heterogeneity across studies (range: 0.5-93%; I square: 99.9%). A stratified analysis by HBV vaccination strategy demonstrated that in the studies providing on-site vaccination, the uptake was 78% (95%CI: 62-94%), significantly higher compared to 27% (95%CI: 13-42%) in studies referring participants to an external site for vaccination. Conclusion This systematic review identified a wide variety of interventions, mostly multi-component interventions, to enhance HBV screening, linkage to HBV clinical care, and HBV vaccination coverage. High heterogeneity was observed in effectiveness of interventions in all three domains of screening, linkage to care, and vaccination. Strategies identified to boost the effectiveness of interventions included providing on-site HBV testing and vaccination (versus referral for testing and vaccination) and including community education focussed on HBV or liver cancer in an HBV screening program. Further studies are needed to evaluate the effectiveness of more novel interventions (e.g., point of care testing) and interventions specifically including Indigenous populations, people who inject drugs, men who have sex with men, and people incarcerated.

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Thomas, Meinzen, Diane M. Debinski, Laura A. Burkle i Robert J. Ament. Identifying Patterns, Protecting Monarchs, and Informing Management. Idaho Transportation Department, lipiec 2023. http://dx.doi.org/10.15788/1691525473.

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Pollinating insects provide vital ecosystem services and are facing global declines and habitat loss . Roadsides are increasingly regarded as important potential areas for enhancing pollinator habitat. Understanding which roadsides best support pollinators — and why — is essential to helping locate and prioritize pollinator conservation efforts across roadside networks. To support this effort, we assessed butterfly, bee, and flowering plant species richness and abundance on a set of 63 stratified randomized roadside transects in State -managed rights -of -way in SE Idaho. Our research evaluated pollinator diversity as a function of highway class (interstate, U.S., and state highways), remotely sensed NDVI values (a measure of vegetation greenness), and floral resources. We found that smaller highways and lower (less green) maximum NDVI values were associated with significantly more bee species and total bees. Roadsides bordering sagebrush habitats typically had low NDVI values and higher bee and butterfly species richness, potentially contributing to this observed pattern. Butterfly richness increased in association with higher floral abundance in roadsides. Additionally, we identified and mapped 1,363 roadside patches of milkweed (Asclepias speciosa), larval host plant for the imperiled monarch butterfly (Danaus plexippus), in a survey of over 900 miles of southern Idaho highways. Based on these results and a literature review, we recommend management strategies to promote the health of pollinator populations in Idaho’s rights-of-way and provide data to help ITD prioritize areas for pollinator -friendly management practices and habitat restoration within their highway system.

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Saville, Alan, i Caroline Wickham-Jones, red. Palaeolithic and Mesolithic Scotland : Scottish Archaeological Research Framework Panel Report. Society for Antiquaries of Scotland, czerwiec 2012. http://dx.doi.org/10.9750/scarf.06.2012.163.

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Why research Palaeolithic and Mesolithic Scotland? Palaeolithic and Mesolithic archaeology sheds light on the first colonisation and subsequent early inhabitation of Scotland. It is a growing and exciting field where increasing Scottish evidence has been given wider significance in the context of European prehistory. It extends over a long period, which saw great changes, including substantial environmental transformations, and the impact of, and societal response to, climate change. The period as a whole provides the foundation for the human occupation of Scotland and is crucial for understanding prehistoric society, both for Scotland and across North-West Europe. Within the Palaeolithic and Mesolithic periods there are considerable opportunities for pioneering research. Individual projects can still have a substantial impact and there remain opportunities for pioneering discoveries including cemeteries, domestic and other structures, stratified sites, and for exploring the huge evidential potential of water-logged and underwater sites. Palaeolithic and Mesolithic archaeology also stimulates and draws upon exciting multi-disciplinary collaborations. Panel Task and Remit The panel remit was to review critically the current state of knowledge and consider promising areas of future research into the earliest prehistory of Scotland. This was undertaken with a view to improved understanding of all aspects of the colonization and inhabitation of the country by peoples practising a wholly hunter-fisher-gatherer way of life prior to the advent of farming. In so doing, it was recognised as particularly important that both environmental data (including vegetation, fauna, sea level, and landscape work) and cultural change during this period be evaluated. The resultant report, outlines the different areas of research in which archaeologists interested in early prehistory work, and highlights the research topics to which they aspire. The report is structured by theme: history of investigation; reconstruction of the environment; the nature of the archaeological record; methodologies for recreating the past; and finally, the lifestyles of past people – the latter representing both a statement of current knowledge and the ultimate aim for archaeologists; the goal of all the former sections. The document is reinforced by material on-line which provides further detail and resources. The Palaeolithic and Mesolithic panel report of ScARF is intended as a resource to be utilised, built upon, and kept updated, hopefully by those it has helped inspire and inform as well as those who follow in their footsteps. Future Research The main recommendations of the panel report can be summarized under four key headings:  Visibility: Due to the considerable length of time over which sites were formed, and the predominant mobility of the population, early prehistoric remains are to be found right across the landscape, although they often survive as ephemeral traces and in low densities. Therefore, all archaeological work should take into account the expectation of Palaeolithic and Mesolithic ScARF Panel Report iv encountering early prehistoric remains. This applies equally to both commercial and research archaeology, and to amateur activity which often makes the initial discovery. This should not be seen as an obstacle, but as a benefit, and not finding such remains should be cause for question. There is no doubt that important evidence of these periods remains unrecognised in private, public, and commercial collections and there is a strong need for backlog evaluation, proper curation and analysis. The inadequate representation of Palaeolithic and Mesolithic information in existing national and local databases must be addressed.  Collaboration: Multi-disciplinary, collaborative, and cross- sector approaches must be encouraged – site prospection, prediction, recognition, and contextualisation are key areas to this end. Reconstructing past environments and their chronological frameworks, and exploring submerged and buried landscapes offer existing examples of fruitful, cross-disciplinary work. Palaeolithic and Mesolithic archaeology has an important place within Quaternary science and the potential for deeply buried remains means that geoarchaeology should have a prominent role.  Innovation: Research-led projects are currently making a substantial impact across all aspects of Palaeolithic and Mesolithic archaeology; a funding policy that acknowledges risk and promotes the innovation that these periods demand should be encouraged. The exploration of lesser known areas, work on different types of site, new approaches to artefacts, and the application of novel methodologies should all be promoted when engaging with the challenges of early prehistory.  Tackling the ‘big questions’: Archaeologists should engage with the big questions of earliest prehistory in Scotland, including the colonisation of new land, how lifestyles in past societies were organized, the effects of and the responses to environmental change, and the transitions to new modes of life. This should be done through a holistic view of the available data, encompassing all the complexities of interpretation and developing competing and testable models. Scottish data can be used to address many of the currently topical research topics in archaeology, and will provide a springboard to a better understanding of early prehistoric life in Scotland and beyond.

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