Littérature scientifique sur le sujet « Growth and evolution »

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Articles de revues sur le sujet "Growth and evolution"

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Galor, Oded, et Omer Moav. « Evolution and growth ». European Economic Review 45, no 4-6 (mai 2001) : 718–29. http://dx.doi.org/10.1016/s0014-2921(01)00112-x.

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Tirira, Diego G. « Evolution and growth ». Mammalia aequatorialis 4 (30 décembre 2022) : 7–8. http://dx.doi.org/10.59763/mam.aeq.v4i.21.

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Evolution is a constant process. Living beings, human societies, people, countries, and knowledge evolve, among many other aspects. Mammalia æquatorialis is no stranger to this process of change. Starting with this issue, we have adopted English as the official language: first in our digital magazine, but over the course of the next year, we will translate our website. This does not mean that we will stop publishing articles or scientific notes in our mother tongue. Submissions in Spanish will be welcome for all those who wish to publish in this language; however, starting with this issue, we will prefer to receive submissions in the language of science, which will allow the scientific material that we publish to reach a wider audience. Issue 4 of Mammalia æquatorialis opens with two articles that document the richness of mammals in two regions of the country. The first one focuses on a camera-trap study carried out in the Cerro Blanco Protected Forest, a natural area a few kilometers from the city of Guayaquil, the largest city in Ecuador. This proximity means that the wildlife present there faces several threats due to the pressure that the large urban center exerts on the small nature reserve. Despite this, the study recorded 16 species of native mammals, among them two primates (Alouatta palliata and Cebus aequatorialis) that are critically endangered in the country. The second study was carried out in small fragments of Andean forest south of the city of Quito. The study used pitfall traps to record eight species of small mammals. Among them, the mouse Thomasomys vulcani stands out as the most abundant species, despite being categorized as Vulnerable according to the Lista Roja de los mamíferos del Ecuador (Tirira, 2021). The abundance of T. vulcani is perhaps an indicator that its conservation status is better than suspected, and it would be worthwhile to carry out complementary studies in other locations to confirm it. Issue 4 of Mammalia æquatorialis continues with two other articles based on geographic distribution models for other threatened species. The first deals with the Ecuadorian Brown-headed Spider Monkey (Ateles fusciceps fusciceps), a species categorized as Critically Endangered and considered one of the 25 most threatened primate species in the world. The study confirms that this primate has lost an important area of its natural habitat (the forests of the northern coast of Ecuador), and its projected conservation for 2050 is not encouraging, since the effects of climate change and fragmentation will further reduce the scarce natural forests that it occupies. The second article investigates the availability of habitat for the Northern Pudu (Pudu mephistophiles), a species of deer categorized as Endangered on the Lista Roja de los mamíferos del Ecuador (Tirira, 2021). The distribution model generated was based on data from the northern population, which covers the Andes of Colombia, Ecuador, and the extreme north of Peru, north of the Huancabamba Depression. The study updates its distribution in Colombia, confirming that the species is likely only present in the Cordillera Central of the Andes, since the records in the Cordillera Occidental and Cordillera Oriental have not been confirmed. Also, the model indicates that the most suitable habitats for Pudu mephistophiles (northern population) are in the high parts of the Andes of Colombia and Ecuador and that temperature is the main climatic variable that influences its distribution. The last article of number 4 of Mammalia æquatorialis offers an analysis of the socioeconomic impact of the whale-watching industry in Puerto López, a small village in southern Manabí, due to the attraction of the Humpback Whale (Megaptera novaeangliae). As a result, tourism services and employment opportunities have increased, bringing development and a better lifestyle to the region. Unlike the endangered species in the previous articles, the Humpback Whale is one of the few mammals to have been removed from conservation categories in the latest edition of the Lista Roja de los mamíferos del Ecuador (Tirira, 2021), as it is now treated as a Least Concern species. One of the reasons for this change in category is the recovery of their populations, apparently supported in part by the increase in whale tourism in various regions of the planet. This is the fourth issue of Mammalia æquatorialis. We are evolving and growing. Thanks for being with us.
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Gaffney, Jennifer A. « Evolution, Poetry, and Growth ». American Catholic Philosophical Quarterly 87, no 2 (2013) : 285–300. http://dx.doi.org/10.5840/acpq201387222.

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Hoskins, Barbara. « Demand, Growth, and Evolution ». Journal of Continuing Higher Education 59, no 1 (18 février 2011) : 57–60. http://dx.doi.org/10.1080/07377363.2011.546267.

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Leigh, Steven R. « Evolution of human growth ». Evolutionary Anthropology : Issues, News, and Reviews 10, no 6 (26 décembre 2001) : 223–36. http://dx.doi.org/10.1002/evan.20002.

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Kumar, Om Prakash, Pramod Kumar, Tanweer Ali, Pradeep Kumar et Shweta Vincent. « Ultrawideband Antennas : Growth and Evolution ». Micromachines 13, no 1 (30 décembre 2021) : 60. http://dx.doi.org/10.3390/mi13010060.

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Narrowband antennas fail to radiate short pulses of nano- or picosecond length over the broader band of frequencies. Therefore, Ultrawideband (UWB) technology has gained momentum over the past couple of years as it utilizes a wide range of frequencies, typically between 3.1–10.6 GHz. UWB antennas have been utilized for various applications such as ground-penetrating radars, disaster management through detection of unexploded mines, medical diagnostics, and commercial applications ranging from USB dongles to detection of cracks in highways and bridges. In the first section of the manuscript, UWB technology is detailed with its importance for future wireless communications systems. In the next section various types of UWB antennas and their design methodology are reviewed, and their important characteristics are highlighted. In section four the concept of a UWB notch antenna is presented. Here various methods to obtain the notch, such as slots, parasitic resonators, metamaterials, and filters are discussed in detail. In addition, various types of important notch antenna design with their technical specifications, advantages, and disadvantages are presented. Finally, the need of reconfigurable UWB notch antennas is discussed in the next section. Here various insight to the design of frequency reconfigurable notch antennas is discussed and presented. Overall, this article aims to showcase the beginnings of UWB technology, the reason for the emergence of notching in specific frequency bands, and ultimately the need for reconfiguring UWB antennas along with their usage.
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Caha, O., V. Holý et K. E. Bassler. « Growth evolution of superlattice morphology ». Acta Crystallographica Section A Foundations of Crystallography 63, a1 (22 août 2007) : s254. http://dx.doi.org/10.1107/s0108767307094251.

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Wallis, Michael. « Molecular evolution of growth hormone ». Biochemist 36, no 1 (1 février 2014) : 4–8. http://dx.doi.org/10.1042/bio03601004.

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Growth hormone (GH) is a single-chain protein hormone of approximately 190 residues, expressed mainly in the vertebrate anterior pituitary gland, which regulates somatic growth and various aspects of metabolism; many of these actions are mediated by insulin-like growth factor 1 (IGF1). Growth defects in humans frequently result from GH deficiency and are often treatable by GH administration. The evolution of GH illustrates many features of molecular evolution, including (i) the development and elaboration of gene/protein families by gene duplication, (ii) subtle changes resulting from incorporation of point mutations, which often occur during episodes of accelerated change, and (iii) co-evolution of hormones and their receptors.
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ORME, C., et B. G. ORR. « SURFACE EVOLUTION DURING MBE GROWTH ». Surface Review and Letters 04, no 01 (février 1997) : 71–105. http://dx.doi.org/10.1142/s0218625x97000122.

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The evolution of surfaces grown using molecular beam epitaxy (MBE) is an interesting scientific issue as well as an important technological concern. In this review article we examine surface evolution during film growth from several different points of view. Experimental, simulational and analytical descriptions of the process are discussed.
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Hauser, John R., Greg Allenby, Frederic H. Murphy, Jagmohan Raju, Richard Staelin et Joel Steckel. « Marketing Science—Growth and Evolution ». Marketing Science 24, no 1 (février 2005) : 1–2. http://dx.doi.org/10.1287/mksc.1040.0112.

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Thèses sur le sujet "Growth and evolution"

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Maniou, Zoitsa. « Molecular evolution of pituitary growth hormone ». Thesis, University of Sussex, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270719.

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Huang, Jie. « Growth, evolution and scaling in transport networks ». Thesis, University of Leeds, 2015. http://etheses.whiterose.ac.uk/9966/.

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Under urbanisation, transport infrastructures may be improved when urban population grows. Meanwhile, land use patterns may vary and this urban dynamics may drive variations in mode choice of commuters and spatial features of transport networks. Empirical studies have observed scaling laws between the amount of transport infrastructures and city sizes. This thesis is aiming to provide a modelling framework for the analytical investigation of network growth and present some empirical observations of the variation in spatial features of transport networks. First, a simple linear monocentric city model is formulated and the global performance of transport systems is derived. Two cases according to strategies of urban intensification and sprawl have been studied to examine the consequence of the scaling-law growth in transport infrastructures. Second, this thesis proposes a modelling framework. The framework includes two congestible modes, the scaling-law growth of transport infrastructures and housing allocation of residents so that phenomena under urban dynamics could be modelled. The experiments show that the proposed modelling framework could investigate the trade-off of investment on the highway and public transport system. Third, empirical observations of spatial features in transport networks are reported in this thesis. The thesis measures circuity of transport networks, because this indicator could examine how aggregate transport networks are and the efficiency of network structures. Then research methods that can deal with several data sources are developed. The empirical observation shows that there is an exponential decay between the circuity and travel time in public transport networks. Meanwhile, this thesis also presents that the average circuity in road networks is less than that in public transport networks for the same sample of trips, which to some extent show the difference of spatial features between road and public transport networks. Additionally, correlations between circuity, accessibility and mode share are analysed.
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King, Annette. « On the evolution of growth and senescence ». Thesis, University of Newcastle upon Tyne, 2016. http://hdl.handle.net/10443/3453.

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Consistent associations between growth and senescence are seen throughout nature. Whilst a larger size correlates positively with lifespan between species, this relationship is reversed within a species so that the smallest members tend to be the longest‐lived. Indeterminate growth ‐ i.e. growth that continues post‐maturity ‐ is a strong predictor for an especially slow rate of ageing. A number of interventions which alter the rate of growth, especially at a point early in development, have been shown to have enduring effects on later growth and lifespan. This thesis provides a theoretical examination of why relationships such as these may have evolved. Two dynamic programming models are here presented. Both consider associations between growth and longevity within a species and ask whether these are compatible with idea of a trade‐off between somatic maintenance and other fitness‐enhancing functions as predicted by the disposable soma theory. The first reproduces the sexual dimorphism in longevity and in body size seen baboons; it predicts that males should ‘choose’ a faster rate of ageing and a greater investment in growth than females. The second suggests that a faster rate of ageing may be an optimal response to low food availability in early life in humans. A critical appraisal is also given to two recent theories of the evolution of ageing which rely explicitly on differences in body size and/or growth to explain differences in lifespan: the hyperfunction theory and the heat dissipation limit theory. What these can teach us about the evolution of senescence and whether they can provide plausible challenges to the disposable soma theory is considered.
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Phegley, Jeff S. « Terrestrial evolution ». Virtual Press, 2001. http://liblink.bsu.edu/uhtbin/catkey/1266141.

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Terrestrial Evolution focuses on the destruction of the natural environment by manmade obstructions such as housing developments, strip malls, roads, telephone lines, and utility poles. Each of the paintings address one or more of these aspects of development and communicates ideas of detachment from this seemingly endless process of building. Color, surface texture, composition, and visual imagery were all carefully thought out and planned parts of a complicated process for the communication of ideas on this particular subject matter.My hometown of Carmel, Indiana has been experiencing massive environmental change over the past ten years. Large housing editions and strip malls have been built to accommodate the influx of people moving to this northern suburb of Indianapolis. Land is being sold, bought, zoned, and covered with quickly built homes and strip malls. Once this suburban sprawl has begun, will it stop? How much of the environmental damage it has contributed is reversible?Terrestrial Evolution represents a very personal and visual response to the contemporary state of Carmel's woodlands, wetlands, and wildlife, which are being sacrificed for manmade development.
Department of Art
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Racca, Simone. « Some models of crack growth in brittle materials ». Doctoral thesis, SISSA, 2013. http://hdl.handle.net/20.500.11767/4809.

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This work is devoted to the study of models of fractures growth in brittle elastic materials; it collects the results obtained during my Ph.D., that are contained in [77, 76, 78]. We consider quasi-static rate-independent models, as well as rate-dependent ones and the case in which the first ones are limits of the second ones when certain physical parameters vanish. The term quasistatic means that, at each instant, the system is assumed to be in equilibrium with respect to its time-dependent data; this setting is typical of systems whose internal time scale is much smaller than that of the loadings. By rate-independent system we mean that, if the time-dependent data are rescaled by a strictly monotone increasing function, then the system reacts by rescaling the solutions in the same manner.
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Carel, Roland. « Grain growth and texture evolution in thin films ». Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/31064.

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Dey, Bhakta Ranjan. « Transforming growth factor-β3 gene structure and evolution ». Thesis, University of Edinburgh, 1991. http://hdl.handle.net/1842/13639.

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Transforming growth factor-β (TGF-β) is a multifunctional regulator of cellular proliferation and differentiation. It has been suggested that members of the TGF-β gene family also control differentiation and morphogenesis in embryonic developments. Since the chicken embryogenesis has been so extensively studied, we chose to clone the chicken TGF-β3 gene to facilitate a more detailed analysis of the developmental role of TGF-βs. We have cloned and characterised the chicken TGF-β3 gene and its flanking regions from a White Leghorn chicken genomic library packaged into λEMBL3 using chicken TGF-β3 exon specific oligonucleotide probes. We have determined the gene structure from overlapping genomic clones. The chicken TGF-β3gene contains 7 exons and 6 introns, spanning 15.6kb of genomic DNA. The intron/exon organisation was initially characterised on the basis of Southern blot analysis using exon specific oligonucleotide probe(s) and subsequently confirmed by DNA sequencing. We have also characterised the chicken TGF-β3 promoter. The promoter is very GC-rich and lies within an extensive CpG island of approximately 2400 nucleotides. The 5'-untranslated region is 467 bp, in length shorter than that found in the human TGF-β3 gene (1356 bp). A comparison of the 5'-flanking regions from the chicken and human TGF-β3 genes revealed two regions of sequence homology: an 86 bp sequence surrounding the transcription start and a 156 bp sequence in the 5'-untranslatedregion. The conserved region near the transcription start contains short sequences that resemble TATA box, cAMP responsive element (CRE), and AP-2 consensus motifs. These are cis acting sequences we believe may be important for promoter activity. The conserved region in the 5'-untranslated region is also present in chicken, mouse, porcine and human TGF-β3genes and may have a regulatory role. The chicken TGF-β3 promoter has no sequence homology with either TGD-β2 promoters. We do, however, find some striking similarities between TGF-β2 and TGF-β3 promoters, including the conserved regulatory sequences of TATA box, CRE and AP-2 sequence motifs near the transcription initiation site. A computer assisted search of the chicken TGF-β3 gene nucleotide sequence identified several other potential binding sites for known regulatory proteins. Besides the above, these include the recognition sequences for the transcription factors TFIID, MyoDl, Spl, PEA3, Krox-24 and GRE. Further studies on TGF-β3 gene regulation should determine the significance of these regulatory protein binding sites. The 3'-untranslated region of the gene is approximately 956 bp in length. A sequence comparison of chicken TGF-β3 3' flanking sequence with the published cDNA sequences of mouse, porcine and human TGF-β3 reveals a highly conserved 84 bp segment around the polyadenylation signal.
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Morgan, Daniel Ashley. « The growth and evolution of polygonal fault tiers ». Thesis, Cardiff University, 2016. http://orca.cf.ac.uk/88909/.

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Polygonal faults are layer-bound arrays of normal faults confined to specific stratigraphic intervals called tiers. Typically hosted in fine-grained sediments, polygonal faults are thought to have the potential for fluid leakage and represent a potential seal bypass mechanism. Intergral to understanding the impact of polygonal faults on regional top seal is timing and evolution of polygonal fault tiers. Whilst there are numerous studies imaging and describing polygonal faults in numerous basins around the world, very few specifically consider the growth of polygonal faults. Additionally, very few polygonal fault studies examine the evolution of fault hierarchies and how these hierarchies accommodate strain and deformation within the tier. This study examines two wedge-shaped polygonal fault tiers on different passive margins. The first polygonal fault tier studied is from offshore Angola and is hosted in sediment thickness of less 500 m, in Plio-Pleistocene claystones. The second tier examined is from the Modgunn Arch, Norwegian Margin and is hosted in a sequence of siliceous oozes and claystones of Eocene to Pliocene age, up to 1200 m in thickness. This study uses the differences in sediment ages to compare and contrast polygonal fault tiers at different stages of evolution and aims to examine common features between young and mature tiers in order to constrain tier evolution. This study considers two aspects of polygonal fault growth. Firstly it considers the utility of perturbations in polygonal fault tiers around features of the base of the tier. These perturbations have the potential to be a useful proxy for elucidating the nucleation position of polygonal faults in the tier. The second aspect of polygonal fault tier evolution reviews the mechanisms that control organisation hierarchies within a tier and examines the role of linkage in creating large master polygonal faults. The results of this thesis show that the polygonal faults can initiate at low temperatures and low pressures, in sediment thickness of 100 m or less. Moreover, it can be demonstrated that polygonal fault tips propagate preferentially upwards with basal tips pinned by a mechanical boundary at the base of the tier and lateral tips pinned by early forming branchline intersections. The transition from shallow to deep burial shows that polygonal fault hierarchies are naturally forming and may relate to variation in the propagation rate of polygonal faults within the tier. With increasing burial, there 3 is an increased likelihood of branchline interaction. Branchline interaction can occur laterally with lateral tips abutting against other faults in the network. Vertical abutments occur where upwardly propagating tips interact to form triangular abutments and are a key mechanism forcing in the organisation of polygonal faults and growth of Master faults. Both abutment styles also impact the spatial distribution of displacement maxima. Polygonal fault tiers also show subtle spatial variablilty in orientation and linkage mechanisms that can be attributed to the distribution and magnitude of far field stresses as well as the early fault dimensions. This thesis also presents a primie facie case for diachronaity in polygonal fault growth driven by variations in sediment loading and branchline linkage complexity. Overall, this thesis describes and accounts for some key behaviours of incipient polygonal faults tiers.
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Hearn, David John. « Growth form evolution in Adenia (Passifloraceae) and a model of the evolution of succulence ». Diss., The University of Arizona, 2004. http://hdl.handle.net/10150/280706.

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The architecture of a plant is intimately tied to its fitness. Knowledge of the processes and patterns of growth form evolution can therefore contribute to a richer understanding of plant evolution. The genus Adenia (Passifloraceae) of ca. 100 species is an Old World lineage in which growth form radiated. I constructed a molecular phylogeny of the group, analyzed the stem and tuber anatomy of over half the species, and investigated patterns of growth form evolution in a phylogenetic context. I also described four new species and a new combination. Predictions based on evolutionary developmental models of growth form evolution were tested in Adenia, and one of them, the homeotic switch hypothesis, was tested throughout the eudicots. The switch hypothesis claims that the storage tissue of tubers and stems results from a common developmental origin. Phylogenetic analyses revealed that growth form transitions were frequent, and anatomical studies revealed traits that are associated with each growth form; moreover, traits are shared between tubers and succulent stems as predicted by the switch hypothesis. As expected, tuberous plants and succulents are also closely related across the eudicots. The switch hypothesis is substantiated in Adenia and the eudicots as a whole.
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Twite, Joanathan W. « Galaxy star formation and mass growth since z=3 ». Thesis, University of Nottingham, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.718862.

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In this thesis we investigate the evolution of galaxies since z = 3. There are several methods to measure the star formation rate (SFR) of galaxies, they all however have drawbacks. Several studies have investigated the SFR at high redshifts using SFR trac­ers that suffer from uncertainties, either from the tracer used, or from the uncertainties correcting for the effects of dust. We have new measurements of the Ha emission line for a sample of galaxies at =~1; Ha is a more accurate SFR-tracer than other com­monly used tracers, but until now had been technically difficult to measure at : > 0.85. We investigate methods to correct these observations for dust and we use these mea­surements to investigate the relation between SFR, stellar mass and colour. We find that there is a drop in the fraction of massive (M, > 1011 M.) star-forming galaxies at = < 0.9 and that the fraction of all galaxies that are star-forming drops steadily and significantly with redder (U — B) colours. We find that the M„-SFR (galaxy main sequence, GMS) is flatter than previously measured and that for the most massive galaxies, star formation shuts off abruptly at =~1.
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Livres sur le sujet "Growth and evolution"

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Birch, David L. Corporate evolution. Cambridge, MA (100 CambridgePark Dr., Cambridge 02140) : Cognetics, 1994.

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Meikle, Murray C. Craniofacial development, growth and evolution. Bressingham : Bateson, 2002.

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Antontsev, Stanislav, et Sergey Shmarev. Evolution PDEs with Nonstandard Growth Conditions. Paris : Atlantis Press, 2015. http://dx.doi.org/10.2991/978-94-6239-112-3.

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T, Jacob. Cantonments in India : Evolution and growth. New Delhi : Reliance Pub. House, 1994.

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The evolution of the human head. Cambridge : Belknap Press of Harvard University Press, 2010.

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Evo-devo of child growth : Treatise on child growth and human evolution. Hoboken : Wiley-Blackwell, 2012.

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Technological innovation, industrial evolution, and economic growth. New York, N.Y : Garland, 1997.

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B, Audretsch David, et Klepper Steven, dir. Innovation, evolution of industry and economic growth. Cheltenham : Edward Elgar, 2000.

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B, Audretsch David, et Klepper Steven, dir. Innovation, evolution of industry and economic growth. Cheltenham : Edward Elgar, 2000.

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Allen, John S. The lives of the brain : Human evolution and the organ of mind. Cambridge, Mass : Belknap Press, 2009.

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Chapitres de livres sur le sujet "Growth and evolution"

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Sengupta, Jati K. « Stochastic Selection and Evolution ». Dans Competition and Growth, 71–99. London : Palgrave Macmillan UK, 2004. http://dx.doi.org/10.1057/9780230505315_3.

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Sengupta, Jati. « Industry Evolution Mechanisms ». Dans Dynamics of Industry Growth, 135–51. New York, NY : Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-3852-6_6.

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Watts, Elizabeth S. « Evolution of the Human Growth Curve ». Dans Human Growth, 153–66. Boston, MA : Springer US, 1986. http://dx.doi.org/10.1007/978-1-4613-2101-9_8.

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Sengupta, Jati K. « Selection and Evolution of Industry ». Dans Competition and Growth, 36–70. London : Palgrave Macmillan UK, 2004. http://dx.doi.org/10.1057/9780230505315_2.

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Daniels, Em. « Learning, Growth, and Evolution ». Dans Building a Trauma-Responsive Educational Practice, 125–33. New York : Routledge, 2021. http://dx.doi.org/10.4324/9781003048312-6.

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Reymer, Arthur P. S., et Gerald Schubert. « Phanerozoic and Precambrian crustal growth ». Dans Proterozic Lithospheric Evolution, 1–9. Washington, D. C. : American Geophysical Union, 1987. http://dx.doi.org/10.1029/gd017p0001.

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Marriott, Kate LoMedico, Donald R. Prothero et Alexander Bartholomew. « Anatomy, Growth, and Geometry ». Dans Evolution of the Ammonoids, 19–32. Boca Raton : CRC Press, 2023. http://dx.doi.org/10.1201/9781003288299-2.

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Fritsch, Bruno, Stephan Schmidheiny et Walter Seifritz. « Evolution and Energy ». Dans Towards an Ecologically Sustainable Growth Society, 37–53. Berlin, Heidelberg : Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-78742-3_3.

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Leisinger, Thomas, Andreas Mägli, Monika Schimid-Appert, Kurt Zoller et Stéphane Vuilleumier. « Evolution of Dichloromethane Utilization ». Dans Microbial Growth on C1 Compounds, 261–68. Dordrecht : Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0213-8_35.

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Gustafsson, Björn, Razvan Teodorescu et Alexander Vasil’ev. « Shape Evolution and Integrability ». Dans Classical and Stochastic Laplacian Growth, 231–61. Cham : Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08287-5_8.

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Actes de conférences sur le sujet "Growth and evolution"

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O’Reilly, Oliver M., et Timothy N. Tresierras. « An Evolution Equation for Plant Growth ». Dans ASME 2009 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2009. http://dx.doi.org/10.1115/sbc2009-206770.

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In a recent paper [1], plant growth and branching were modeled using a rod-based theory featuring Euler’s elastica. This work extended the works of Goreily et al. [2] and Silk et al. [3] on this topic. Special features of the model developed in [1] included an evolution equation for the flexural rigidity EI and intrinsic curvature νo and the use of an intermediate (growth) configuration.
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Shengjie, Sun, Zhong Sheng et Zhang Baihai. « Researching on the Growth Operator SWFZIRS of Growth Evolution Algorithms ». Dans 2011 Seventh International Conference on Computational Intelligence and Security (CIS). IEEE, 2011. http://dx.doi.org/10.1109/cis.2011.38.

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Dervaux, J., et M. Ben Amar. « Elastic growth in thin geometries ». Dans Origins of Life : Self-Organization and/or Biological Evolution ? Les Ulis, France : EDP Sciences, 2009. http://dx.doi.org/10.1051/orvie/2009007.

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Kunegis, Jérôme, Damien Fay et Christian Bauckhage. « Network growth and the spectral evolution model ». Dans the 19th ACM international conference. New York, New York, USA : ACM Press, 2010. http://dx.doi.org/10.1145/1871437.1871533.

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HUMPHRIES, W., et R. SOSNAY. « Growth evolution of the Space Station ECLSS ». Dans Space Station in the 21st Century. Reston, Virigina : American Institute of Aeronautics and Astronautics, 1986. http://dx.doi.org/10.2514/6.1986-2313.

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Mourão, José Murilo. « EVOLUTION AND GROWTH OF IRON ORE PELLETIZING ». Dans 4th EMECR - International Conference on Energy and Material Efficiency and CO2 Reduction in the Steel Industry 2022. São Paulo : Editora Blucher, 2022. http://dx.doi.org/10.5151/5463-5463-35035.

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Ayaita, Youness, et Maik Weber. « The Peculiar Velocity Anomaly as a Hint for Recent Growth ? » Dans International Workshop on Cosmic Structure and Evolution. Trieste, Italy : Sissa Medialab, 2010. http://dx.doi.org/10.22323/1.097.0009.

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Pilipetskii, A. N., et G. Mohs. « Technology Evolution and Capacity Growth in Undersea Cables ». Dans Optical Fiber Communication Conference. Washington, D.C. : OSA, 2020. http://dx.doi.org/10.1364/ofc.2020.w4e.2.

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Ames, Brian E., et Patricia A. Petete. « Evaluation of Space Station ATCS Evolution Growth Paths ». Dans International Conference On Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States : SAE International, 1993. http://dx.doi.org/10.4271/932153.

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Kizito, John, et Yacob Argaw. « Bubble Evolution and Growth in Fluids under Vacuum ». Dans 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition. Reston, Virigina : American Institute of Aeronautics and Astronautics, 2010. http://dx.doi.org/10.2514/6.2010-1482.

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Rapports d'organisations sur le sujet "Growth and evolution"

1

Galor, Oded, et Stelios Michalopoulos. Evolution and the Growth Process : Natural Selection of Entrepreneurial Traits. Cambridge, MA : National Bureau of Economic Research, mai 2011. http://dx.doi.org/10.3386/w17075.

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Gaviria, Alejandro, et Ernesto H. Stein. The Evolution of Urban Concentration around the World : A Panel Approach. Inter-American Development Bank, avril 2000. http://dx.doi.org/10.18235/0010774.

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In this paper, we use a panel approach to study population growth in major cities around the world. We find that major cities grow faster in relatively backward economies and in more volatile, faster-growing economies. We also find that the effects of trade policy on the growth of major cities hinge heavily on geography. While population growth in major cities located at or near ports does not change after an upsurge of trade flows, population growth in landlocked major cities tends to slow down after the same event. On the other hand, we do not find any effect of political regime on the population growth of major cities. Finally, we find some evidence that, other things being equal, larger cities tend to grow at smaller rates.
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Bordo, Michael, et Peter Rousseau. Legal-Political Factors and the Historical Evolution of the Finance-Growth Link. Cambridge, MA : National Bureau of Economic Research, février 2006. http://dx.doi.org/10.3386/w12035.

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Gordon, Robert, et Hassan Sayed. Transatlantic Technologies : The Role of ICT in the Evolution of U.S. and European Productivity Growth. Cambridge, MA : National Bureau of Economic Research, juin 2020. http://dx.doi.org/10.3386/w27425.

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Tortarolo, Dario, et Irene Brambilla. Growth in Labor Earnings across the Income Distribution : Latin America during the 2000s. Inter-American Development Bank, février 2015. http://dx.doi.org/10.18235/0009246.

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The objective of this paper is to characterize the evolution of labor earnings in Latin America during the 2000s, a decade of markedly poverty reduction. Based on household surveys for six countries, Brazil, Chile, Costa Rica, Ecuador, Honduras and Mexico, we study clusters of increases in labor earnings across worker, job, and industry characteristics. Throughout the analysis we allow for worker income heterogeneity, so as to characterize the evolution of labor earnings across the income distribution. For three of the six countries, we match the household survey data with industrial data from UNIDO and COMTRADE and find that increases in productivity and changes in product composition are more important than industry output as determinants of increases in labor earnings within manufacturing.
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Andrian, Leandro Gaston, Valerie Mercer-Blackman, Andrea Presbitero et Alessandro Rebucci. Vulnerability, Debt and Growth in the Caribbean : A Fan Chart Approach. Inter-American Development Bank, septembre 2013. http://dx.doi.org/10.18235/0009132.

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High government debts, weak economic growth, vulnerability to external shocks and the design of sound fiscal consolidation strategies are among the most critical issues that some of the Caribbean countries have currently to deal with. Stabilization programs may harm economic growth but, under certain conditions, they could be expansionary. The main result of this analysis is that the uncertainty about the future evolution of debt increases when the volatility of exogenous shocks that affect fiscal revenues are properly accounted for in the debt sustainability analysis.
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Saboin, José Luis, Jorge Hirs, Leandro Gaston Andrian et Augusto Chávez. The Evolution of External Shocks and Macrofiscal Outcomes in the Andes. Inter-American Development Bank, mai 2024. http://dx.doi.org/10.18235/0012972.

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The abundance of natural resources can adversely affect the macroeconomic stability of countries. Developing economic institutions that support the proper management of extractive industry resources is one of the fundamental factors for maintaining macroeconomic stability and generating long-term economic growth. This paper evaluates the impact of terms-of-trade shocks on fiscal performance and economic growth in the countries of the Andean region. To adequately capture the variation in both the magnitude of shocks and the sensitivity of economic and fiscal variables to those shocks, this paper makes use of a TV-SVAR model. This method allows us to evaluate whether the presence of fiscal institutions change their sensitivity to external disturbances. The results presented in this paper show a time-varying dynamic of both (1) terms-of-trade shocks and (2) the sensitivity of the Andean regions economies to such shocks, although with marked heterogeneity across countries. This heterogeneity coincides with the uneven development of the economic institutions in the countries of the region. The results highlight the importance of developing adequate economic policy frameworks in order to adequately mitigate the volatility in the terms-of-trade.
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Brodie, Katherine, Ian Conery, Nicholas Cohn, Nicholas Spore et Margaret Palmsten. Spatial variability of coastal foredune evolution, part A : timescales of months to years. Engineer Research and Development Center (U.S.), juillet 2021. http://dx.doi.org/10.21079/11681/41322.

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Coastal foredunes are topographically high features that can reduce vulnerability to storm-related flooding hazards. While the dominant aeolian, hydrodynamic, and ecological processes leading to dune growth and erosion are fairly well-understood, predictive capabilities of spatial variations in dune evolution on management and engineering timescales (days to years) remain relatively poor. In this work, monthly high-resolution terrestrial lidar scans were used to quantify topographic and vegetation changes over a 2.5 year period along a micro-tidal intermediate beach and dune. Three-dimensional topographic changes to the coastal landscape were used to investigate the relative importance of environmental, ecological, and morphological factors in controlling spatial and temporal variability in foredune growth patterns at two 50 m alongshore stretches of coast. Despite being separated by only 700 m in the alongshore, the two sites evolved differently over the study period. The northern dune retreated landward and lost volume, whereas the southern dune prograded and vertically accreted. The largest differences in dune response between the two sections of dunes occurred during the fall storm season, when each of the systems’ geomorphic and ecological properties modulated dune growth patterns. These findings highlight the complex eco-morphodynamic feedback controlling dune dynamics across a range of spatial scales.
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De Brun, Julio. Growth in Uruguay : Factor Accumulation or Productivity Gains ? Inter-American Development Bank, mai 2004. http://dx.doi.org/10.18235/0008730.

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This paper is part of the project "Explaining Economic Growth Performance" launched by the Global Development Network (GDN). The purpose of this project is to explain economic growth performances across seven regions. During the last five decades the Uruguayan economy faced volatile macroeconomic conditions. Economic policies swung from highly controlled capital flows, exchange rates, and interest rates to the introduction of significant financial liberalization. This study will show that the upturn in economic growth since liberalization is due to improved resource allocation that, in turn, promoted an increase in human capital accumulation. No significant changes are observed in the pattern of physical capital accumulation or the evolution of Total Factor Productivity (TFP). The analysis begins with an overview of recent economic policy in Uruguay, summarizing the characteristics of each period. A growth accounting exercise is then conducted to begin weighing which factors are crucial to understanding the country's pattern of growth. This exercise will show, as previously stated, that TFP played a minimal role. This evidence is complemented by analysis of a time series of key variables, which permits us to address the empirical regularities that must be explained to understand economic growth in Uruguay.
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Chisari, Omar O. Notes on Optimal Growth, Climate Change Calamities, Adaptation and Mitigation. Inter-American Development Bank, septembre 2010. http://dx.doi.org/10.18235/0010829.

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A strategy of inclusion of adaptation and mitigation expenses in a model of optimal growth under threat of climate change calamities is discussed in these exploratory notes. Calamity is the result of a shock that reduces the utility level (even to extinction forever) and/or triggers a fundamental change of the economic structure. Mitigation expenses reduce the long-run probability of a calamity or the speed of convergence to it; adaptation expenses help to improve the standard of living after the calamity. The willingness to contribute to those expenses and the effects on the long-run capital stock of the economy depend on perceptions on how they will modify the law of evolution of probabilities of the shock and the standard of living after the shock. The choice between a clean technology and one that increases GHG emissions is also discussed.
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