Relevant bibliographies by topics / Age-structured

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Age-structured'

Author: Grafiati
Published: 4 June 2021
Last updated: 8 February 2022

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Journal articles on the topic "Age-structured"

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de Jong, Tom J., and B. Charlesworth. "Evolution in Age-Structured Populations." Journal of Ecology 83, no. 3 (June 1995): 548. http://dx.doi.org/10.2307/2261610.

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Dewi, Sonya, and Peter Chesson. "The age-structured lottery model." Theoretical Population Biology 64, no. 3 (November 2003): 331–43. http://dx.doi.org/10.1016/s0040-5809(03)00094-7.

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Frazer, C. "Structured cabling comes of age." IEE Review 48, no. 2 (March 1, 2002): 33–36. http://dx.doi.org/10.1049/ir:20020205.

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Cochran, John M., and Yongzhi Xu. "Age-structured dengue epidemic model." Applicable Analysis 93, no. 11 (July 10, 2014): 2249–76. http://dx.doi.org/10.1080/00036811.2014.918963.

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MICÓ, JOAN C., DAVID SOLER, and ANTONIO CASELLES. "Age-Structured Human Population Dynamics." Journal of Mathematical Sociology 30, no. 1 (January 2006): 1–31. http://dx.doi.org/10.1080/00222500500323143.

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Jørgensen, Sven Erik. "Evolution in age-structured populations." Ecological Modelling 78, no. 3 (April 1995): 288. http://dx.doi.org/10.1016/0304-3800(95)90079-9.

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Curtsinger, James. "Evolution in age-structured populations." Experimental Gerontology 30, no. 6 (November 1995): 663–65. http://dx.doi.org/10.1016/0531-5565(95)90013-6.

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Sulsky, Deborah, Richard R. Vance, and William I. Newman. "Time delays in age-structured populations." Journal of Theoretical Biology 141, no. 3 (December 1989): 403–22. http://dx.doi.org/10.1016/s0022-5193(89)80122-5.

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Bekkal-Brikci, Fadia, Khalid Boushaba, and Ovide Arino. "Nonlinear age structured model with cannibalism." Discrete & Continuous Dynamical Systems - B 7, no. 2 (2007): 201–18. http://dx.doi.org/10.3934/dcdsb.2007.7.201.

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Tuljapurkar, Shripad. "Evolution in Age-Structured Populations.Brian Charlesworth." Quarterly Review of Biology 70, no. 4 (December 1995): 511. http://dx.doi.org/10.1086/419199.

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Dissertations / Theses on the topic "Age-structured"

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Liu, Shouzong. "AGE-STRUCTURED PREDATOR-PREY MODELS." OpenSIUC, 2018. https://opensiuc.lib.siu.edu/dissertations/1577.

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In this thesis, we study the population dynamics of predator-prey interactions described by mathematical models with age/stage structures. We first consider fixed development times for predators and prey and develop a stage-structured predator-prey model with Holling type II functional response. The analysis shows that the threshold dynamics holds. That is, the predator-extinction equilibrium is globally stable if the net reproductive number of the predator $\mathcal{R}_0$ is less than $1$, while the predator population persists if $\mathcal{R}_0$ is greater than $1$. Numerical simulations are carried out to demonstrate and extend our theoretical results. A general maturation function for predators is then assumed, and an age-structured predator-prey model with no age structure for prey is formulated. Conditions for the existence and local stabilities of equilibria are obtained. The global stability of the predator-extinction equilibrium is proved by constructing a Lyapunov functional. Finally, we consider a special case of the maturation function discussed before. More specifically, we assume that the development times of predators follow a shifted Gamma distribution and then transfer the previous model into a system of differential-integral equations. We consider the existence and local stabilities of equilibria. Conditions for existence of Hopf bifurcation are given when the shape parameters of Gamma distributions are $1$ and $2$.
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Tumuluri, suman Kumar. "Age-structured nonlinear renewal equations." Paris 6, 2009. http://www.theses.fr/2009PA066233.

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Les équations structurées apparaissent dans de nombreux domaines de la biologie des populations. La limitation des ressources, introduits par Verhulst, conduisent à des modèles avec des non-linéarités sous formes intégrales. Les équations structurées en âge semblent les plus simples pour commencer. Le chapitre 1 présente de nombreux exemples issus de l'épidémiologie, l'écologie, l'oncologie. . . Etc Il donne également des résultats généraux de convergence vers l'état stationnaire non-nul par des méthodes de perturbation, d'entropie ou de réduction à des systèmes plus simples. On ne s'attend toutefois pas à des comportement toujours si simples. Le chapitre 2 étudie la stabilité linéaire de l'état stationnaire avec des hypothèses permettant d'établir qu'il est unique. Ceci conduit à un problème spectral que l'on ne peut résoudre analytiquement ou classifier en général. Nous donnons diverses structures montrant que l'état stationnaire peut être stable ou instable (même dans le cas de termes de naissance décroissants). Dans ce cadre on retrouve numériquement des solutions périodiques stables déjà mises en évidence par divers auteurs. Le chapitre 3 s'applique à l'étude de convergence, dans un cadre général, des schémas numériques utilisés auparavant. Les difficultés ici proviennent du terme de naissance au bord non-linéaire et de l'absence de bornes BV dans la variable naturelle. Ceci oblige à passer par des estimations BV en temps afin d'en déduire de la compacité nécessaire à passer à la limite. Les tests numériques montrent qu'un schéma d'ordre deux est nécessaire pour capturer les oscillations transitoires générées par la non-linéarité
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Toth, Damon. "Analysis of age-structured chemostat models /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/6780.

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El, Idrissi Omar. "Analysis of a prey-predator model in age-structured population dynamics." Doctoral thesis, Universitat Autònoma de Barcelona, 2001. http://hdl.handle.net/10803/3070.

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Radosavljevic, Sonja. "Permanence of age-structured populations in a spatio-temporal variable environment." Doctoral thesis, Linköpings universitet, Matematik och tillämpad matematik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-130927.

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It is widely recognized that various biotic and abiotic factors cause changes in the size of a population and its age distribution. Population structure, intra-specific competition, temporal variability and spatial heterogeneity are identified as the most important factors that, alone or in combination, influence population dynamics. Despite being well-known, these factors are difficult to study, both theoretically and empirically. However, in an increasingly variable world, permanence of a growing number of species is threatened by climate changes, habitat fragmentation or reduced habitat quality. For purposes of conservation of species and land management, it is crucially important to have a good analysis of population dynamics, which will increase our theoretical knowledge and provide practical guidelines. One way to address the problem of population dynamics is to use mathematical models. The choice of a model depends on what we want to study or what we aim to achieve. For an extensive theoretical study of population processes and for obtaining qualitative results about population growth or decline, analytical models with various level of complexity are used. The competing interests of realism and solvability of the model are always present. This means that, on one hand, we always aim to make a model that will truthfully reflect reality, while on the other hand, we need to keep the model mathematically solvable. This prompts us to carefully choose the most prominent ecological factors relevant to the problem at hand and to incorporate them into a model. Ideally, the results give new insights into population processes and complex interactions between the mentioned factors and population dynamics. The objective of the thesis is to formulate, analyze, and apply various mathematical models of population dynamics. We begin with a classical linear age-structured model and gradually add temporal variability, intra-specific competition and spatial heterogeneity. In this way, every subsequent model is more realistic and complex than the previous one. We prove existence and uniqueness of a nonnegative solution to each boundary-initial problem, and continue with investigation of the large time behavior of the solution. In the ecological terms, we are establishing conditions under which a population can persist in a certain environment. Since our aim is a qualitative analysis of a solution, we often examine upper and lower bounds of a solution. Their importance is in the fact that they are obtained analytically and parameters in their expression have biological meaning. Thus, instead of analyzing an exact solution (which often proves to be difficult), we analyze the corresponding upper and lower solutions. We apply our models to demonstrate the influence of seasonal changes (or some other periodic temporal variation) and spatial structure of the habitat on population persistence. This is particularly important in explaining behavior of migratory birds or populations that inhabits several patches, some of which are of low quality. Our results extend the previously obtained results in some aspects and point out that all factors (age structure, density dependence, spatio-temporal variability) need to be considered when setting up a population model and predicting population growth.
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Koch, Erich. "Effects of cannibalism, maternal age and varying fish selectivity in age structured models of deep water hake populations." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/12252.

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An Age Structured Model (ASM) was develop in which dynamic and density-dependent cannibalism was included as a top-down control on a modeled population of M. paradoxus which used spawner biomass and maternal based recruitment. The ASM was used to evaluate the effects cannibalism had on age structure, recruitment and spawner biomass of the modeled population. The development of the model was described and evaluated with special emphasis on incorporating cannibalism and maternal based recruitment.
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Smith, Jerry A. "Investigating the Role of Sexual Reproduction in Diploidy Age-Structured Evolutionary Populations." NSUWorks, 2003. http://nsuworks.nova.edu/gscis_etd/849.

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The John Holland genetic algorithm lacks some of the genomic regulatory mechanisms necessary to overcome novel environmental dynamics by fast adaptive change. This simple genetic algorithm uses a haploid chromosome-based cell that reproduces only once during its single generation life span by using a modified asexual reproductive technique. This original cellular structure does not support the expression of recessive genomic characteristics that are essential for adaptive change. Its single life span and reproductive cycle do not allow for the possibility of highly fit parents to continuously contribute to the successful evolution of the population. Asexual reproductive techniques fail to pass the test of natural selection. This research developed a new genetic algorithm that is based on an object-oriented representation of those structural and behavioral characteristics found in highly adaptive organisms. By using a diploid chromosome based cell that sexually reproduce across many generations; the research has produced a more adaptive optimization algorithm than originally produced by Holland when performance tested using De Jong's Test Functions.
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Ejigu, Amsalework Ayele. "Mathematical modelling of HIV/AIDS transmission under treatment structured by age of infection." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6628.

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Thesis (MSc (Mathematical Sciences))--University of Stellenbosch, 2011.
Includes bibliography.
ENGLISH ABSTRACT: This thesis takes into account the different levels of infectiousness of the human immunodeficiency virus (HIV) infected individuals throughout their period of infection. Infectiousness depends on the time since infection. It is high shortly after the infection occurs and then much lower for several years, and thereafter a higher plateau is reached before the acquired immunodeficiency syndrome (AIDS) phase sets in. In line with this, we formulated a mathematical model which is structured according to the age of infection. To understand the dynamics of the disease, we first discuss and analyse a simple model in which the age of infection is not considered, but progression of the HIV-AIDS transmission is taken into consideration by introducing three stages of infection. Analysis of these models tells us that the disease can be eradicated from the population only if on average one infected individual infects less than one person in his or her infectious period, otherwise the disease persists. To investigate the reduction of the number of infections caused by a single infectious individual to less than one, we introduce different treatment strategies for a model which depends on the age of infection, and we analyse it numerically. Current strategies amount to introducing treatment only at a late stage of infection when the infected individual has already lived through most of the infectious period. From our numerical results, this strategy does not result in eradication of the disease, even though it does reduce the burden for the individual. To eradicate the disease from the population, everyone would need to be HIV tested regularly and undergo immediate treatment if found positive.
AFRIKAANSE OPSOMMING: Hierdie tesis hou rekening met die verskillende aansteeklikheidsvlakke van die menslike immuniteitsgebreksvirus (MIV) deur besmette individue gedurende hulle aansteeklikheidstydperk. Die graad van aansteeklikheid hang af van die tydperk sedert infeksie. Dit is hoog kort nadat die infeksie plaasvind en daarna heelwat laer vir etlike jare, en dan volg n hoer plato voordat uiteindelik die Verworwe-Immuniteitsgebreksindroom (VIGS) fase intree. In ooreenstemming hiermee, formuleer ons n wiskundige model van MIV-VIGSoordrag met n struktureer waarin die tydperk sedert infeksie bevat is. Om die dinamika van die siekte te verstaan, bespreek en analiseer ons eers n eenvoudige model sonder inagneming van die tydperk sedert infeksie, terwyl die progressie van MIV-VIGS-oordrag egter wel in ag geneem word deur die beskouing van drie stadiums van infeksie. Analise van die modelle wys dat die siekte in die bevolking slegs uitgeroei kan word as elke besmette mens gemiddeld minder as een ander individu aansteek gedurende die tydperk waarin hy of sy self besmet is, anders sal die siekte voortduur. Vir die ondersoek oor hoe om die aantal infeksies per besmette individu tot onder die waarde van een te verlaag, beskou ons verskeie behandelingsstrategiee binne die model, wat afhang van die tydperk sedert infeksie, en ondersoek hulle numeries. Die huidige behandelingstrategiee kom neer op behandeling slegs gedurende die laat sta- dium van infeksie, wanneer die besmette individu reeds die grootste deel van die aansteeklikheidsperiode deurleef het. Ons numeriese resultate toon dat hierdie strategie nie lei tot uitroeiing van die siekte nie, alhoewel dit wel die las van die siekte vir die individu verminder. Om die siekte binne die bevolking uit te roei, sou elkeen gereeld vir MIV getoets moes word en indien positief gevind, dadelik met behandeling moes begin.
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Ambrogi, Elena. "Dynamics of an age structured neuron population with the addition of learning processes." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23242/.

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In this thesis I studied a model which shapes the dynamics of a population of neurons modeled through the time elapsed since their last discharge. The system results in a renewal equation with the addition of the spatial extension and some learning processes. The network is assumed to be non-homogeneous, and the Hebbian learning rule counts for the adaptation of the communication channels between the neurons. In the weak interconnection regime it is proved progressively the well-posedness of the problem, the existence and uniqueness of a stationary solution and the exponential convergence of the system to it. The analysis is conducted both in the linear and non-linear case and makes use of common tools of the mathematical analysis combined with more sophisticated instruments as the Doeblin's theory.
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Alawneh, Zakaria Mohammad. "A numerical method for solving certain nonlinear integral equations arising in age-structured populations dynamics." Diss., The University of Arizona, 1990. http://hdl.handle.net/10150/184984.

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In this thesis we study the existence and stability of positive equilibrium of a general model for the dynamics of several interacting, age-structured population. We begin with the formulation and proof of a global existence theorem for the initial value problem. The proof of this theorem is used to develop an algorithm and a FORTRAN code for the numerical solution of initial value problems for the single species case. This computer program is used to study prototype models for the dynamics of a population whose fertility and mortality rates exhibit an "Allee effect". This is done from a bifurcation theoretic point of view, using the inherent net reproductive rate as a bifurcating parameter. An unstable "left" bifurcation is found. Multi-equilibria and various kinds of oscillations are studied as a function of r, the fertility window, and the nature of the density dependence.
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Books on the topic "Age-structured"

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Li, Xue-Zhi, Junyuan Yang, and Maia Martcheva. Age Structured Epidemic Modeling. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-42496-1.

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Charlesworth, Brian. Evolution in age-structured populations. 2nd ed. Cambridge [England]: Cambridge University Press, 1994.

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Iannelli, Mimmo. Mathematical theory of age-structured population dynamics. Pisa: Giardini editori e stampatori, 1995.

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Inaba, Hisashi. Age-Structured Population Dynamics in Demography and Epidemiology. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-0188-8.

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Iannelli, Mimmo, and Fabio Milner. The Basic Approach to Age-Structured Population Dynamics. Dordrecht: Springer Netherlands, 2017. http://dx.doi.org/10.1007/978-94-024-1146-1.

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Deriso, R. B. Age structured stock assessment of Lake Erie walleye. Ann Arbor, MI: Great Lakes Fishery Commission, 1988.

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International, Population Action, ed. The shape of things to come: Why age structure matters to a safer, more equitable world. Washington, DC: Population Action International, 2007.

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Matulich, Scott C. A recursive age-structured model of Alaskan red king crab. Juneau, Alaska: Alaska Dept. of Fish and Game, Division of Commercial Fisheries, 1988.

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Matulich, Scott C. A recursive age-structured model of Alaskan red king crab. Juneau, Alaska: Alaska Dept. of Fish and Game, Division of Commercial Fisheries, 1988.

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Anita̧, Sebastian. Analysis and control of age-dependent population dynamics. Dordrecht: Kluwer Academic Publishers, 2000.

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Book chapters on the topic "Age-structured"

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Magal, Pierre, and Shigui Ruan. "Age-Structured Models." In Applied Mathematical Sciences, 357–449. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-01506-0_8.

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DeAngelis, Donald L., Wilfred M. Post, and Curtis C. Travis. "Age-Structured Populations." In Positive Feedback in Natural Systems, 127–55. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82625-2_9.

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Martcheva, Maia. "Age-Structured Epidemic Models." In Texts in Applied Mathematics, 301–29. Boston, MA: Springer US, 2015. http://dx.doi.org/10.1007/978-1-4899-7612-3_12.

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Pilant, M., and W. Rundell. "Age Structured Population Dynamics." In Inverse Problems and Theoretical Imaging, 122–29. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-75298-8_16.

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Li, Xue-Zhi, Junyuan Yang, and Maia Martcheva. "Age-Structured Epidemic Models." In Interdisciplinary Applied Mathematics, 23–67. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-42496-1_2.

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Hastings, Alan. "Interacting Age Structured Populations." In Mathematical Ecology, 287–94. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-69888-0_11.

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Martcheva, Maia. "Class-Age Structured Epidemic Models." In Texts in Applied Mathematics, 331–60. Boston, MA: Springer US, 2015. http://dx.doi.org/10.1007/978-1-4899-7612-3_13.

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Li, Xue-Zhi, Junyuan Yang, and Maia Martcheva. "Vector-Borne Age-Structured Models." In Interdisciplinary Applied Mathematics, 211–57. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-42496-1_6.

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Li, Xue-Zhi, Junyuan Yang, and Maia Martcheva. "Class Age-Structured Epidemic Models." In Interdisciplinary Applied Mathematics, 301–59. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-42496-1_8.

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Inaba, Hisashi. "Age-Structured SIR Epidemic Model." In Age-Structured Population Dynamics in Demography and Epidemiology, 287–331. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-0188-8_6.

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Conference papers on the topic "Age-structured"

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El-Doma, Mohamed O., Theodore E. Simos, George Psihoyios, and Ch Tsitouras. "Age-structured & Size-structured Population Dynamics Models." In NUMERICAL ANALYSIS AND APPLIED MATHEMATICS: International Conference on Numerical Analysis and Applied Mathematics 2009: Volume 1 and Volume 2. AIP, 2009. http://dx.doi.org/10.1063/1.3241393.

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Shukla, Kartik, Mayank Verma, and Daya Gupta. "Age-Structured Biogeography-based Optimization." In 2020 4th International Conference on Intelligent Computing and Control Systems (ICICCS). IEEE, 2020. http://dx.doi.org/10.1109/iciccs48265.2020.9121034.

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Miller, Sara, Terrance Quinn, and James Ianelli. "Estimation of Age-Specific Migration in an Age-Structured Model." In Resiliency of Gadid Stocks to Fishing and Climate Change. Alaska Sea Grant College Program, 2008. http://dx.doi.org/10.4027/rgsfcc.2008.09.

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Tarasyev, Alexandr A., Gavriil A. Agarkov, Elena A. Rovenskaya, and Gui-Ying Cao. "Dynamic modeling of age-structured migration flows." In PROCEEDINGS OF THE INTERNATIONAL CONFERENCE OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING 2019 (ICCMSE-2019). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5137937.

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KOHLER, BRYNJA. "AN AGE STRUCTURED MODEL OF T CELL POPULATIONS." In Proceedings of the Conference on Mathematical Biology and Dynamical Systems. WORLD SCIENTIFIC, 2007. http://dx.doi.org/10.1142/9789812706799_0005.

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Revutskaya, O. L. "DYNAMIC REGIMES IN AGE-STRUCTURED PREDATOR-PREY POPULATION MODEL." In Современные проблемы регионального развития. ИКАРП ДВО РАН – ФГБОУ ВО «ПГУ им. Шолом-Алейхема», 2018. http://dx.doi.org/10.31433/978-5-904121-22-8-2018-275-278.

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Karafyllis, Iasson, Michael Malisoff, and Miroslav Krstic. "Sampled-data feedback stabilization of age-structured chemostat models." In 2015 American Control Conference (ACC). IEEE, 2015. http://dx.doi.org/10.1109/acc.2015.7172045.

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Addawe, Joel M., and Jose Ernie C. Lope. "Sensitivity analysis of the age-structured malaria transmission model." In INTERNATIONAL CONFERENCE ON FUNDAMENTAL AND APPLIED SCIENCES 2012: (ICFAS2012). AIP, 2012. http://dx.doi.org/10.1063/1.4757436.

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Rasheed, Maan A., Sean Laverty, and Brittany Bannish. "Numerical solutions of a linear age-structured population model." In SECOND INTERNATIONAL CONFERENCE OF MATHEMATICS (SICME2019). Author(s), 2019. http://dx.doi.org/10.1063/1.5097799.

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Yan, Chenjing, Congyan Lang, and Songhe Feng. "Facial Age Estimation Based on Structured Low-rank Representation." In MM '15: ACM Multimedia Conference. New York, NY, USA: ACM, 2015. http://dx.doi.org/10.1145/2733373.2806318.

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Reports on the topic "Age-structured"

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Feichtinger, Gustav, Alexia Prskawetz, and Vladimir M. Veliov. Age-structured optimal control in population economics. Rostock: Max Planck Institute for Demographic Research, September 2002. http://dx.doi.org/10.4054/mpidr-wp-2002-045.

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Goluskin, David. Who Ate Whom: Population Dynamics With Age-Structured Predation. Fort Belvoir, VA: Defense Technical Information Center, October 2010. http://dx.doi.org/10.21236/ada558579.

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Banks, H. T., V. A. Bokil, and Shuhua Hu. Monotone Approximation for a Nonlinear Size and Class Age Structured Epidemic Model. Fort Belvoir, VA: Defense Technical Information Center, February 2006. http://dx.doi.org/10.21236/ada443993.

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Riffe, Timothy, Enrique Acosta, José M. Aburto, Diego Alburez-Gutierrez, Ugofilippo Basellini, Anna Altová, Simona Bignami, et al. COVerAGE-DB: a database of age-structured COVID-19 cases and deaths. Rostock: Max Planck Institute for Demographic Research, September 2020. http://dx.doi.org/10.4054/mpidr-wp-2020-032.

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Downes, Jane, ed. Chalcolithic and Bronze Age Scotland: ScARF Panel Report. Society for Antiquaries of Scotland, September 2012. http://dx.doi.org/10.9750/scarf.09.2012.184.

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The main recommendations of the panel report can be summarised under five key headings:  Building the Scottish Bronze Age: Narratives should be developed to account for the regional and chronological trends and diversity within Scotland at this time. A chronology Bronze Age Scotland: ScARF Panel Report iv based upon Scottish as well as external evidence, combining absolute dating (and the statistical modelling thereof) with re-examined typologies based on a variety of sources – material cultural, funerary, settlement, and environmental evidence – is required to construct a robust and up to date framework for advancing research.  Bronze Age people: How society was structured and demographic questions need to be imaginatively addressed including the degree of mobility (both short and long-distance communication), hierarchy, and the nature of the ‘family’ and the ‘individual’. A range of data and methodologies need to be employed in answering these questions, including harnessing experimental archaeology systematically to inform archaeologists of the practicalities of daily life, work and craft practices.  Environmental evidence and climate impact: The opportunity to study the effects of climatic and environmental change on past society is an important feature of this period, as both palaeoenvironmental and archaeological data can be of suitable chronological and spatial resolution to be compared. Palaeoenvironmental work should be more effectively integrated within Bronze Age research, and inter-disciplinary approaches promoted at all stages of research and project design. This should be a two-way process, with environmental science contributing to interpretation of prehistoric societies, and in turn, the value of archaeological data to broader palaeoenvironmental debates emphasised. Through effective collaboration questions such as the nature of settlement and land-use and how people coped with environmental and climate change can be addressed.  Artefacts in Context: The Scottish Chalcolithic and Bronze Age provide good evidence for resource exploitation and the use, manufacture and development of technology, with particularly rich evidence for manufacture. Research into these topics requires the application of innovative approaches in combination. This could include biographical approaches to artefacts or places, ethnographic perspectives, and scientific analysis of artefact composition. In order to achieve this there is a need for data collation, robust and sustainable databases and a review of the categories of data.  Wider Worlds: Research into the Scottish Bronze Age has a considerable amount to offer other European pasts, with a rich archaeological data set that includes intact settlement deposits, burials and metalwork of every stage of development that has been the subject of a long history of study. Research should operate over different scales of analysis, tracing connections and developments from the local and regional, to the international context. In this way, Scottish Bronze Age studies can contribute to broader questions relating both to the Bronze Age and to human society in general.
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6

Yeboah, Thomas, and Irene Egyir. Forms, Prevalence and Drivers of Children’s Work and Children’s Harmful Work in Shallot Production on the Keta Peninsula, South-Eastern Ghana. Institute of Development Studies (IDS), November 2020. http://dx.doi.org/10.19088/acha.2020.002.

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This paper synthesises the available literature on the forms, prevalence and drivers of children’s work, and evidence of harm associated with children’s work in shallot production on the Keta Peninsula, Ghana. What emerges is that children have historically played, and continue to play, a key role in this horticultural system and their work contribution is structured by both age and gender. Desires to support parents and earn income drive children’s involvement, and children’s work has potential negative effects on their education.
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