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Добірка наукової літератури з теми "Ant nest density"

Автор: Grafiati

Опубліковано: 7 червня 2025

Оновлено: 2 серпня 2025

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Статті в журналах з теми "Ant nest density"

Lu, Yongyue, Lei Wang, Yijuan Xu, Ling Zeng, and Ningdong Li. "Correlation of the Nest Density and the Number of Workers in Bait Traps for Fire Ants (Solenopsis invicta) in Southern China." Sociobiology 59, no. 4 (2014): 1197–204. http://dx.doi.org/10.13102/sociobiology.v59i4.499.

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The relationship between Solenopsis invicta nest density and the number of fire ant workers in bait traps and percentages of traps capturing ants were investigated in the waste land of Wuchuan, Guangdong, South China. The results showed that fire ant nest density is positively correlated with the number of workers captured in traps, and could be described by N=60.53LnD +348.0D+421.1. The workers exceeded 200 and 300 in bait traps while the density of fire ant nests was over 0.023 and 0.084 ind./m2, respectively. The percentages of traps capturing ants were also positively correlated with fire

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Dias, Ratnayake K. S., and Warnakulasuriyage S. Udayakantha. "Nest density and other observations on a population of Aneuretus simoni Emery, 1893 (Formicidae, Aneuretinae) and other ants in Indikada Mukalana Forest Reserve in Sri Lanka." Journal of Insect Biodiversity 4, no. 12 (2016): 1. http://dx.doi.org/10.12976/jib/2016.4.12.

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The Sri Lankan Relict Ant, Aneuretus simoni Emery, survives in several wet zone and intermediate zone forests in Sri Lanka. Nests of this species and other ants were surveyed at 159 m and 291 m elevations in Indikada Mukalana Forest Reserve by laying 20 quadrats of 1 m × 1 m at two plots of each locality in December, 2015. The number of ant nests within each quadrat was recorded; then the frequency of nest occurrence out of 40 quadrats, percentage nest abundance and mean nest density of A. simoni, as well as associated ant fauna were calculated. Percentage frequency of worker ant occurrence wa

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Ouagoussounon, Issa, Rosalia Gration Rwegasira, Appolinaire Adandonon, Maulid Mwatawala, Joachim Offenberg, and Dansou Kossou. "Temporal Variability in Weaver Ant Oecophylla longinoda Latreille (Hymenoptera: Formicidae) Nest Characteristics in Selected Host Plants." Sociobiology 71, no. 1 (2024): e10280. http://dx.doi.org/10.13102/sociobiology.v71i1.10280.

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Weaver ants (Oecophylla smaragdina and O. longinoda) are famous for their impressive nest constructions where they weave together living leaves on their host plants. Also, they are known to protect tropical tree crops against insect pests and are thus being utilized for biological control. To optimize their use, nest numbers have been used to track weaver ant abundances in plantation, assuming the number of nests reflects ant numbers. In this study we compared nest size, the density of ants and the proportion of workers in nests between three host plants (cashew, citrus and mango) and between

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Baer, Julia. "Native ant species Myrmica rubra affects Herring Gull Larus argentatus and Lesser Black-backed Gull L. fuscus chick survival at a North Sea island." Seabird Journal, no. 27 (2014): 87–98. http://dx.doi.org/10.61350/sbj.27.87.

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Trischen island is located in the core area of the Schleswig Holstein Wadden Sea National Park, north of the Elbe estuary, and holds one of the largest colonies of Herring Gull Larus argentatus (1,781 pairs in 2013) and Lesser Black-backed Gull L. fuscus (1,838 pairs in 2013) on the German west coast. Productivity has been monitored for both species since 2010, and was low throughout 2010-13, averaging 0.26 ± 0.12 SD fledged/nest for Herring Gull and 0.32 ± 0.14 SD fledged/nest for Lesser Black-backed Gull. Since 2011 excessive ant activity has been noted at some nest sites, causing distress f

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Hidayat, Alfian, Ika Purnamasari, and Meiliyani Siringoringo. "Penentuan Jalur Terpendek dengan Metode Heuristik Menggunakan Algoritma Sarang Semut (Ant Colony)." EKSPONENSIAL 11, no. 1 (2021): 93. http://dx.doi.org/10.30872/eksponensial.v11i1.649.

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Ant Colony algorithm was adopted from the behavior of ant colonies, known as the system of ants, ant colonies are naturally able to find the shortest route on their way from nest to food source places. Colony of ants can find shortest route between the nest and food sources based on the trajectory of footprints that have been passed. The density of ant footprints on the path is always updating because of the evaporation of the footprints and the determination of ant pathways using probability calculations. This study aims to determine the results of determining the shortest path using the ant

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Debruyn, LAL, and AJ Conacher. "The bioturbation activity of ants in agricultural and naturally vegetated habitats in semiarid environments." Soil Research 32, no. 3 (1994): 555. http://dx.doi.org/10.1071/sr9940555.

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The effect of ant activity on bioturbation rates was assessed in the central wheatbelt of Western Australia in naturally vegetated and farmland sites, by bimonthly measurements of soil fauna activity and periodic measurements of ant nest dimensions. The percentage soil surface affected by soil fauna (%SSASF) was on average 0.5%, with the lowest activity in cropped areas and the highest %SSASF recorded in pasture sites (>2%). Overall %SSASF was greater on yellow sand in comparison with grey sandy loam. The estimated bioturbation rates of ant communities in naturally vegetated and farmland ha

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Li, Kevin, John H. Vandermeer, and Ivette Perfecto. "Disentangling endogenous versus exogenous pattern formation in spatial ecology: a case study of the ant Azteca sericeasur in southern Mexico." Royal Society Open Science 3, no. 5 (2016): 160073. http://dx.doi.org/10.1098/rsos.160073.

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Spatial patterns in ecology can be described as reflective of environmental heterogeneity (exogenous), or emergent from dynamic relationships between interacting species (endogenous), but few empirical studies focus on the combination. The spatial distribution of the nests of Azteca sericeasur , a keystone tropical arboreal ant, is thought to form endogenous spatial patterns among the shade trees of a coffee plantation through self-regulating interactions with controlling agents (i.e. natural enemies). Using inhomogeneous point process models, we found evidence for both types of processes in t

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Sondej, Izabela, and Timo Domisch. "Impact of Large-Scale Fire and Habitat Type on Ant Nest Density and Species Abundance in Biebrza National Park, Poland." Forests 15, no. 1 (2024): 123. http://dx.doi.org/10.3390/f15010123.

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Fire can have negative effects on the ant community by reducing species abundance through direct mortality, changes in resource availability, or foraging activity. Fire can also have positive effects, especially for opportunistic species preferring open or disturbed habitats. We assessed the direct effects of a large-scale fire on ant communities in open habitats (grassland and Carex) and moist forested peatland (birch and alder) sites in Biebrza National Park, testing three hypotheses: (i) the large-scale fire had more significant effects on ant nest density in forests than in open habitats,

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Sendoya, Sebastian F., Paulo S. D. Silva, and Alejandro G. Farji-Brener. "Does inundation risk affect leaf-cutting ant distribution? A study along a topographic gradient of a Costa Rican tropical wet forest." Journal of Tropical Ecology 30, no. 1 (2013): 89–92. http://dx.doi.org/10.1017/s026646741300076x.

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Abstract:Successional state of forest and availability of pioneer plants are recognized factors affecting densities of leaf-cutting ants. However little is known about how abiotic factors can shape nest distributions. We investigated the effect of topography, soil, forest successional state and inundation risk on nest density and size of Atta cephalotes colonies along streams in a tropical wet forest in Costa Rica. In each forest type, we surveyed 12 sites, each site comprising five transects (10 × 100 m) varying in topography and proximity to streambeds. We found no difference regarding nest

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Sondej, Izabela, and Timo Domisch. "Reaction of Wood Ants to a Large-Scale European Spruce Bark Beetle Outbreak in Temperate Forests." Insects 15, no. 11 (2024): 840. http://dx.doi.org/10.3390/insects15110840.

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In the Białowieża Forest, Norway spruce is the preferred host tree species for wood ants, both in coniferous and mixed stands; thus, spruce mortality as a consequence of a continuous spruce bark beetle outbreak in the Białowieża Forest since 2012 could have severe consequences for wood ant colonies, as well as their vitality and distribution. The main aim of this study was to assess whether the bark beetle outbreak had any effects on wood ant nest density and abundance and whether we could find any factors affecting the dead spruce distribution around ant nests. A re-inventory of active and ab

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Дисертації з теми "Ant nest density"

Pruett, Michael Shane Thompson Frank R. Heitmeyer Mickey E. "Avian nest survival and breeding density in cottonwood plantations and native forest fragments in southeast Missouri." Diss., Columbia, Mo. : University of Missouri--Columbia, 2008. http://hdl.handle.net/10355/7116.

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Title from PDF of title page (University of Missouri--Columbia, viewed on Feb. 24, 2010). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Dr. Frank Thompson and Dr. Mickey Heitmeyer, Dissertation Supervisors. Vita. Includes bibliographical references.

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Davidson, Jonathan. "Advanced thermal modelling and management techniques to improve power density in next generation power electronics." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/8419/.

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This thesis sets out a series of new techniques to improve the thermal management of power electronics. The work is motivated by the increasing impetus to design smaller, more energy efficient electronic power systems for a range of applications, notably electric vehicles. Thermal management is an increasingly important tool which can facilitate improvements in power density through better monitoring and control of system temperatures. This thesis seeks to deliver improvements in implementing this strategy. A review of the state of the art in thermal management is reported, focussing on temper

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Gunnarsson, Gunnar. "Survival patterns and density-dependent processes in breeding mallards Anas platyrhynchos." Doctoral thesis, Umeå : Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/200712.pdf.

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Dinkins, Jonathan B. "Common raven density and greater sage-grouse nesting success in southern Wyoming| Potential conservation and management implications." Thesis, Utah State University, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3587560.

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My research was focused on greater sage-grouse ( Centrocercus urophasianus; hereafter "sage-grouse") nest-site selection, nest success, and hen survival in relation to avian predators. The trade-off between using habitat and avoiding predators is a common decision for prey species including sage-grouse. In Chapter 2, I compared avian predator densities at sage-grouse nest and brood locations to random locations. Sage-grouse were located where densities of small, medium, and large avian predators were 65-68% less than random locations. The effects of anthropogenic and lan

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Mobberley, Sean David. "Quantitative assessment of scatter correction techniques incorporated in next generation dual-source computed tomography." Thesis, The University of Iowa, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=1540384.

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Accurate, cross-scanner assessment of in-vivo air density used to quantitatively assess amount and distribution of emphysema in COPD subjects has remained elusive. Hounsfield units (HU) within tracheal air can be considerably more positive than -1000 HU. With the advent of new dual-source scanners which employ dedicated scatter correction techniques, it is of interest to evaluate how the quantitative measures of lung density compare between dual-source and single-source scan modes. This study has sought to characterize in-vivo and phantom-based air metrics using dual-energy computed tomogr

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Thong, Paul. "The Energy+ Skyscraper: A Critical Investigation, Rethinking, and Redesign of the Sustainable Tower Typology." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1463130800.

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Hörnfeldt, Birger. "Cycles of voles, predators, and alternative prey in boreal Sweden." Doctoral thesis, Umeå universitet, Ekologi och geovetenskap, 1991. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-100711.

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Bank voles, grey-sided voles, and field voles had synchronous 3-4 year density cycles with variable amplitudes which averaged about 200-fold in each species. Cycles of vole predators (red fox and Tengmalm's owl), and their (foxes') alternative prey (mountain hare and forest grouse) lagged behind the vole cycles. The nomadic Tengmalm's owl responded with a very rapid and strong numerical increase to the initial cyclic summer increase of voles (the owl’s staple food). Owl breeding densities in the springs were highly correlated with vole supply in the previous autumns. This suggested that the nu

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Machala, David. "Vývoj nového samonosného zateplovacího systému s ohledem na dynamické namáhání." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226705.

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This diploma thesis deals with suggestion of self-supporting insulating system that can be used for objects which insulating is more or less complicated. In this thesis are theoretically processed information about insulation systems while focus is on their structure, composition and principle of operation. Further, there is theoretically designed self-supporting insulating system which is practically built after theoretically composed testing for finding its basic properties. The most appropriate process of realization is formulated at the end after evaluation of the individual tests.

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Pereira, Daniel Santiago. "Estudo do Potencial de Produção de Néctar da Jitirana Branca (Merremia Aegyptia) em Área de Caatinga no Sertão Central em Quixeramobim-Ce." Universidade Federal Rural do Semi-Árido, 2008. http://bdtd.ufersa.edu.br:80/tede/handle/tede/321.

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Made available in DSpace on 2016-08-15T20:30:57Z (GMT). No. of bitstreams: 1 DanielSP_DISSERT.pdf: 1561196 bytes, checksum: b284038c0016d3ae3285d101b795f237 (MD5) Previous issue date: 2008-07-25 Néctar; entomofauna; Merremia aegyptia O objetivo deste trabalho foi o de investigar se os diferentes horários de coleta de néctar em áreas apícolas influenciam no volume, concentração de açúcar e açúcar total produzido por suas flores, no momento da antese, bem como verificar possíveis alterações nas características do néctar ao longo do tempo e discutir as conseqüências no potencial apícola d

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Kang, Chia-Mei, and 康嘉梅. "Measurement of the Zeta Potential and Net Charge Density of Membranes." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/56972570843589424233.

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碩士 中原大學 化學工程研究所 94 ABSTRACT It has been recognized that the charge of membrane plays an important role in the performance of membrane separation, and so there is much interesting in charactering the charge of membrane. However, there is still an inadequate knowledge in the technique for measuring the membrane charge. In this study, the solution conductivity in the fine pore was measured and used to determine the zeta potential in membrane pore. Experiments of electroosmosis and streaming potential were implemented to determine the zeta potential of PC and PVDF membranes.

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Книги з теми "Ant nest density"

Baram, Yoram. Estimation and classification by sigmoids based on mutual information. National Aeronautics and Space Administration, 1994.

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Hutchinson, G. O. Density in Plutarch. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198821717.003.0003.

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The next move is to show that when rhythmic phrases are more densely packed together than usual, the passage calls for heightened attention. This illustrated from the climax of Plutarch’s Adversus Colotem. Then, to avert the possibility of chance, the book looks at passages in the Lives where at least twenty rhythmic closes come closely together, with few interruptions from unrhythmic closes or longer phrases. When they are looked at as a group, they are clearly not random. They come much more frequently in the second of pairs of Lives: a point with big implications for the conception of the w

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Mogil, Jeffrey S. Genetic differences in opiate receptors. Edited by Paul Farquhar-Smith, Pierre Beaulieu, and Sian Jagger. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198834359.003.0010.

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The 1975 manuscript ‘Opioid receptors in mice: Genetic differences’ by Baran and colleagues was the first published paper to forward a hypothesis as to what might underlie mouse strain differences in opioid analgesic response. A strain was identified, CXBK, that exhibited both deficient morphine analgesia and low μ‎-opioid receptor density. Further study of this strain over the next two decades proved very useful, and the phenotype of CXBK mice has now been explained at the molecular level. The Baran et al. paper presaged the modern genetic studies of the μ‎-opioid gene, OPRM1, and was an impo

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Hutchinson, G. O. Brutus and His Mirrors (Brutus 10.4–6, 13.7–10, 29.2–3, 40.7–8). Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198821717.003.0009.

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This chapter and the next look at the Life of Brutus. This chapter looks at all the passages in the Life which display rhythmic density by the criteria given in ch. 3. Notably, they do not appear at the peaks of action—such as Caesar’s assassination or Brutus’ suicide; rather they involve moments of comparison and reflection. Three of them confront Brutus with Cassius, a central comparative concern internal to the Life: an explicit and sustained comparison of character, and two scenes of interaction, including a point where Brutus looks back on his own life. The other moment confronts Brutus w

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Seetharam Sridhar, Kala. Indian Cities or Suburbs? Oxford University PressOxford, 2025. https://doi.org/10.1093/9780198958147.001.0001.

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Abstract This book answers research questions regarding the suburbanization of persons, households, and jobs in India’s cities, their regional variations, factors which associate with this sprawl, and their consequences. We use granular data from the Global Human Settlements Layer (GHSL) at the sub-kilometre grid level for 100 Indian cities. We find that the downward-sloping population density function is appropriate for studying India’s cities. Next, we find India’s population was significantly more suburban (82%) than urban (33%) in 2015. We find that cities in the south Indian and urbanized

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Wittman, David M. Newtonian Gravity. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199658633.003.0016.

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Having developed a framework for subsuming gravity into relativity, we examine how gravity behaves as a function of the source mass (Earth, Sun, etc.) and distance from that sourcemass.We develop Newton’s inverse‐square law of gravity, and we examine the consequences in terms of acceleration fields, potentials, escape velocities, and surface gravity. Chapter 17 will build on these ideas to show how orbits are used to probe gravity throughout the universe.We also develop a tool for exposing variations in the acceleration field: the tidal acceleration field in any region is defined as the accele

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Dias, Luciano Souto, Denilson Mascarenhas Gusmão, Mírian Célia Gonçalves de Almeida, and Teodolina Batista da Silva Cândido Vitório. A ressignificação do Direito a partir da pandemia do novo Coronavírus. Brazil Publishing, 2020. http://dx.doi.org/10.31012/978-65-5861-073-1.

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The work “Reassignment of Law from the new coronavirus pandemic” is an interdisciplinary collective production idealized under the perceptive lenses of notable scope professionals in the legal universe, working in the various fields of law, in the noble priesthood of the law, judiciary, economics, psychology, masters, doctors and post-doctors, with renowned national and international institutions degrees. The careful reading of this impressive collection shows that the new coronavirus invites to the non-negotiable duty of reflection, both on the large scale suffering it imposed on humanity and

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Botsford, Louis W., J. Wilson White, and Alan Hastings. Population Dynamics for Conservation. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198758365.001.0001.

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This book is a quantitative exposition of our current understanding of the dynamics of plant and animal populations, with the goal that readers will be able to understand, and participate in the management of populations in the wild. The book uses mathematical models to establish the basic principles of population behaviour. It begins with a philosophical approach to mathematical models of populations. It then progresses from a description of models with a single variable, abundance, to models that describe changes in the abundance of individuals at each age, then similar models that describe

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Dyall, Kenneth G., and Knut Faegri. Introduction to Relativistic Quantum Chemistry. Oxford University Press, 2007. http://dx.doi.org/10.1093/oso/9780195140866.001.0001.

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This book provides an introduction to the essentials of relativistic effects in quantum chemistry, and a reference work that collects all the major developments in this field. It is designed for the graduate student and the computational chemist with a good background in nonrelativistic theory. In addition to explaining the necessary theory in detail, at a level that the non-expert and the student should readily be able to follow, the book discusses the implementation of the theory and practicalities of its use in calculations. After a brief introduction to classical relativity and electromagn

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Pathak, Dharminder, Satnam Singh, Harish Kumar, Gomti Grover, and Navneet Kaur, eds. Cotton Some: Insights. The Crop Improvement Society of India, 2023.

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Частини книг з теми "Ant nest density"

Plünnecke, Helmut. "K-density, N-density, and finiteness properties." In Advances in Petri Nets 1984. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/3-540-15204-0_22.

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Hepburn, H. R., C. W. W. Pirk, and O. Duangphakdee. "Nesting: Sites, Space and Density in Comb-Building." In Honeybee Nests. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-54328-9_2.

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Kokol, M., and I. Grabec. "Minimum Square-Error Modeling of the Probability Density Function." In Artificial Neural Nets and Genetic Algorithms. Springer Vienna, 1999. http://dx.doi.org/10.1007/978-3-7091-6384-9_26.

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Strack, D., H. Fudem, F. Kuss, and W. Marsh. "Solder Free Interconnects for High Density Phased Array Integration." In Directions for the Next Generation of MMIC Devices and Systems. Springer US, 1997. http://dx.doi.org/10.1007/978-1-4899-1480-4_13.

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Lamb, Franklin, Bradley Paul, and Christopher Lesniak. "High Density Microwave Packaging Technology Development for Department of Defense Applications." In Directions for the Next Generation of MMIC Devices and Systems. Springer US, 1997. http://dx.doi.org/10.1007/978-1-4899-1480-4_5.

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Quicke, Donald L. J., Buntika A. Butcher, and Rachel A. Kruft Welton. "Dates and Julian dates." In Practical R for biologists: an introduction. CABI, 2021. http://dx.doi.org/10.1079/9781789245349.0020.

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Abstract This chapter deals with dates and Julian dates. To illustrate some date handling, the chapter will look at nest building and laying dates for breeding pairs of the blue tit (Cyanistes caeruleus) in Europe, on the mainland and on the island of Corsica. The problem with two-digit dates and POSIX (using data available online for burials at the Hope Cemetery, Derbyshire, UK); phenology and the density function (using data on European corn borer collected in 2003 at a light trap); extraction of day and month from Julian days; and the seasonal patterns and other smoothing curves (presenting

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Frolov, A. A., D. Husek, P. Combe, and V. Snášel. "Recall Time in Densely Encoded Hopfield Network: Results from KFS Theory and Computer Simulation." In Artificial Neural Nets and Genetic Algorithms. Springer Vienna, 2001. http://dx.doi.org/10.1007/978-3-7091-6230-9_17.

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Amara, Intissar, Wafa Miled, Rihab Ben Slama, et al. "Antibacterial Activity of Polyamide and High-Density Polyethylene Nets Grafted with Polyethylene Glycol." In Springer Proceedings in Materials. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1968-0_1.

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Chen, Qi, Tao Lei, Xinzhe Geng, et al. "DLMP-Net: A Dynamic Yet Lightweight Multi-pyramid Network for Crowd Density Estimation." In Pattern Recognition and Computer Vision. Springer Nature Switzerland, 2022. http://dx.doi.org/10.1007/978-3-031-18916-6_3.

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Mudd, C. J., G. L. Mussinelli, M. Tettamanti, and P. Pedeferri. "Cathodic Protection of Steel in Concrete with Mixed Metal Oxide Activated Titanium Anode Net." In CORROSION 1988. NACE International, 1988. https://doi.org/10.5006/c1988-88229.

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Abstract The corrosion of steel in concrete structures is a costly ongoing problem which can be mitigated with cathodic protection. A variety of cathodic protection materials are currently available, including a relatively new expanded titanium net with a mixed mental oxide coating, Laboratory and field test results on Anode Nets are presented and discussed, Due to the current flowing between anode and cathode, migration of chloride ions from the cathode to the anode occurs. In comparison to carbon based anode systems, the expanded anode net provides less alkalinity consumption, lower anodic p

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Winzer, Peter J., and Daniel J. Harding. "High-density high-speed linear I/O for AI clusters." In Next-Generation Optical Communication: Components, Sub-Systems, and Systems XIV, edited by Guifang Li, Kazuhide Nakajima, and Atul K. Srivastava. SPIE, 2025. https://doi.org/10.1117/12.3045631.

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Kim, Da-Hee, Myung-Do Cho, Young-Chan Ko, et al. "Next Generation Panel Level RDL Interposer Package for High Density Interconnection." In 2025 IEEE 75th Electronic Components and Technology Conference (ECTC). IEEE, 2025. https://doi.org/10.1109/ectc51687.2025.00090.

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Williams, Jamelle K., Arne Cröll, Jason Reynolds, et al. "Mass Loss of Mixed Uranium Carbides in Hot Hydrogen I: The Influence of Composition and Density." In Nuclear and Emerging Technologies for Space (NETS 2024). American Nuclear Society, 2024. http://dx.doi.org/10.13182/nets24-43796.

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Senthilkumar, K. P., K. P. Rama Prabha, Aruna Kolukulapalli, S. Prem Knowles, Vinay Kumar, and R. Lavanya. "Precision Seeding Robots Revolutionizing Planting Accuracy and Crop Density Control in Row Crops." In 2025 International Conference on Next Generation Communication & Information Processing (INCIP). IEEE, 2025. https://doi.org/10.1109/incip64058.2025.11019107.

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Cao, Miao, Zicheng Liu, and Ruijie Xiao. "Incident Power Density Evaluation Method Based on Metalens and R-U-Net." In 2024 IEEE 7th International Conference on Electronic Information and Communication Technology (ICEICT). IEEE, 2024. http://dx.doi.org/10.1109/iceict61637.2024.10671185.

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Wan, Huan, Taona Deng, Wujian Xu, Xin Wei, and Jinshan Zeng. "TriDE-Net: Triple-Densely Extraction Network for Precise Skin Lesion Segmentation." In ICASSP 2025 - 2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2025. https://doi.org/10.1109/icassp49660.2025.10889490.

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Tosi, Fabio, Yiyi Liao, Carolin Schmitt, and Andreas Geiger. "SMD-Nets: Stereo Mixture Density Networks." In 2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR). IEEE, 2021. http://dx.doi.org/10.1109/cvpr46437.2021.00883.

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Khan, Mujibur R., Hassan Mahfuz, and Andreas Kyriacou. "Synthesis and Characterization of Low Density Polyethylene (LDPE) Reinforced With Functionalized CNTs." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-68034.

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A systematic approach was undertaken to increase strength, modulus, and toughness of low density polyethylene (LDPE) filaments through infusion of functionalized CNT and ultra high molecular weight polyethylene (UHMWPE). CNTs were functionalized with OH functional groups using chemical treatment. Functionalized CNTs and UHMWPE were first dry mixed with LDPE, and filaments were then drawn using a melt extrusion process. Loading of UHMWPE varied from 8–10 wt% while that of CNT was at 2–4 wt%. LDPE has been infused first with UHMWPE, and then with both UHMWPE and CNT, and filaments were extruded.

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Parotto, Paolo. "Lattice QCD at finite temperature and density: present and future." In FAIR next generation scientists - 7th Edition Workshop. Sissa Medialab, 2023. http://dx.doi.org/10.22323/1.419.0042.

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Звіти організацій з теми "Ant nest density"

Bürgi, Constantin, and Nisan Gorgulu. Spatial Closeness of Population and Economic Growth. Copenhagen School of Energy Infrastructure, 2022. http://dx.doi.org/10.22439/csei.pb.014.

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We look at the spatial angle of economic growth. Specifically, we assess whether areas where people live closer together experience faster growth. Traditional measures like population density or urbanization are not optimal, as they are affected by large uninhabited areas or capped, respectively. We thus introduce a new measure Spatial Population Concentration (SPC) that captures how many people live on average within a given radius of every person within a geographic area. This measure allows for a more accurate measurement of the population concentration than traditional measures, as it does

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Fritsch, Nicholas. Tail Sensitivity of US Bank Net Interest Margins: A Bayesian Penalized Quantile Regression Approach. Federal Reserve Bank of Cleveland, 2025. https://doi.org/10.26509/frbc-wp-202509.

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Bank net interest margins (NIM) have been historically stable in the US on average, but this stability deteriorated in the post-2020 period, particularly in the tails of the distribution. Recent literature disagrees on the extent to which banks hedge interest rate risk, and past literature shows that credit risk and persistence are also important considerations for bank NIM. I use a novel approach to Bayesian dynamic panel quantile regression to document heterogeneity in US bank NIM estimated sensitivities to interest rates, credit risk, and own persistence. I find increased sensitivity to int

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Kinnan, Cynthia, Krislert Samphantharak, Robert Townsend, and Diego A. Vera-Cossio. Propagation and Insurance in Village Networks. Inter-American Development Bank, 2022. http://dx.doi.org/10.18235/0004385.

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In village economies, small firm owners facing idiosyncratic shocks adjust production by cutting spending and reducing employment. Households with whom they trade inputs and labor scale back their own businesses and reduce consumption. As effects reverberate through local economies, the aggregate indirect adverse effects are larger than the direct effects. Propagation is more severe when transmitted through labor networks as opposed to material supply-chain networks, and goes beyond input-output/sectoral considerations as it varies with network position, closeness to a shocked household, and n

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Nepal, Prakash, Peter J. Ince, Kenneth E. Skog, and Sun J. Chang. Developing Inventory Projection Models Using Empirical Net Forest Growth and Growing-Stock Density Relationships Across U&#46S&#46 Regions and Species Group. U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 2012. http://dx.doi.org/10.2737/fpl-rp-668.

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Mohammadian, Abolfazl, Mohammad Miralinaghi, Alireza Talebpour, Sajad Askari, and Sanaz Kazemzadehazad. State Department of Transportation Support for Operationalizing Transit Signal Priority. Illinois Center for Transportation, 2025. https://doi.org/10.36501/0197-9191/25-005.

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Transit signal priority (TSP) systems have become an integral part of regional intelligent transportation systems integration. They modify signal operations to facilitate faster transit through intersections, improve transit service reliability, reduce delays, and enhance overall transit operational efficiency. Agencies are planning and implementing next-generation TSP systems. However, multifaceted challenges complicate TSP implementation, particularly in urban regions with high traffic density and multiple stakeholders. Exploring these challenges can help develop more efficient deployment st

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Dave, Foram, Mahmood Ali, Mozaffar Mokhtari, Richard Sherlock, Alistair Mcllhagger, and David Tormey. Effect of pigments on laser beam transmission in diode laser transmission welding of poly(propylene). Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps39.gs.pc.4.

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Welding technologies are state of the art for joining polymer composites, with one of the two joining parts considered laser transmissive (LT) and the other laser absorptive (LA). Pigments are often added to LT to enhance the crystallinity of the polymer matrix. However, pigments lead to internal scattering of the laser beam and the rate of transmission or the laser energy density decreases. Depending upon the type and amount of pigments added in the formulation of LT, the percentage of the laser beam transmitted, absorbed, or scattered differs. Laser welding performance depends on the laser e

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Muelaner, Jody E. Decarbonized Fuel Options for Civil Aviation. SAE International, 2023. http://dx.doi.org/10.4271/epr2023012.

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<div class="section abstract"><div class="htmlview paragraph">Drop-in replacement biofuels and electrofuels can provide net-zero CO2 emissions with dramatic reductions in contrail formation. Biofuels must transition to second-generation cellulosic feedstocks while improving land and soil management. Electrofuels, or "e-fuels,” require aggressive cost reduction in hydrogen production, carbon capture, and fuel synthesis. Hydrogen has great potential for energy efficiency, cost reduction, and emissions reduction; however, its low density (even in liquid form) combined with it’s extrem

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Bonnett, Michaela, Angela Ladetto, Meaghan Kennedy, Jasmine Fernandez, and Teri Garstka. Network Analysis of a Mobility Ecosystem in Detroit, MI. Orange Sparkle Ball, 2024. http://dx.doi.org/10.61152/hejw8941https://www.orangesparkleball.com/innovation-library-blog/2024/5/30/sunbelt2024-network-analysis-of-a-mobility-ecosystem-in-detroit-mi.

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Network Analysis of a Mobility Ecosystem in Detroit, MI Background As part of a new initiative from the Global Epicenter of Mobility (GEM), organizations across many sectors in Detroit, MI, and surrounding counties are collaboratively investing in transforming the local legacy mobility industry into an inclusive advanced mobility cluster over the next 3 years. At the start of this initiative, in partnership with the research team at the Detroit Regional Partnership, a social network analysis was conducted to map the relationship between the foundational 24 organizations, the greater coalition,

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Michaels, Trevor. Red-tailed boa (Boa constrictor) surveys at Salt River Bay National Park, St. Croix U.S. Virgin Islands: 2023 report of activities. National Park Service, 2024. http://dx.doi.org/10.36967/2303799.

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St. Croix is home to a variety of threatened and endangered (T&E) species that are at risk for predation by the invasive red-tailed boa (Boa constrictor), such as the St. Croix ground lizard (Amevia polyps), the ground-nesting least tern (Sterna antillarum), and the hawksbill sea turtle (Eretmochelys imbricata). Genetic analysis determined the original red-tailed boa population on St. Croix sourced from a single female released by a pet owner and its range expands every year. Presently, the main population of red-tailed boa is established on the west end of St. Croix and extends as far eas

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