Academic literature on the topic 'Negative Structures'

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Journal articles on the topic "Negative Structures"

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Amini, M., H. R. Nili Sani, and A. Bozorgnia. "Aspects of Negative Dependence Structures." Communications in Statistics - Theory and Methods 42, no. 5 (2013): 907–17. http://dx.doi.org/10.1080/03610926.2011.588362.

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Churchill, Christopher B., David W. Shahan, Sloan P. Smith, Andrew C. Keefe, and Geoffrey P. McKnight. "Dynamically variable negative stiffness structures." Science Advances 2, no. 2 (2016): e1500778. http://dx.doi.org/10.1126/sciadv.1500778.

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Variable stiffness structures that enable a wide range of efficient load-bearing and dexterous activity are ubiquitous in mammalian musculoskeletal systems but are rare in engineered systems because of their complexity, power, and cost. We present a new negative stiffness–based load-bearing structure with dynamically tunable stiffness. Negative stiffness, traditionally used to achieve novel response from passive structures, is a powerful tool to achieve dynamic stiffness changes when configured with an active component. Using relatively simple hardware and low-power, low-frequency actuation, w
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Martin, Terence. "The Negative Structures of American Literature." American Literature 57, no. 1 (1985): 1. http://dx.doi.org/10.2307/2926310.

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Novikov, V. V., and K. W. Wojciechowski. "Negative Poisson coefficient of fractal structures." Physics of the Solid State 41, no. 12 (1999): 1970–75. http://dx.doi.org/10.1134/1.1131137.

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King, R. B. "Negative Curvature Surfaces in Chemical Structures." Journal of Chemical Information and Computer Sciences 38, no. 2 (1998): 180–88. http://dx.doi.org/10.1021/ci970063+.

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Ahmed, Abdul-Hadi N. "Negative dependence structures through stochastic ordering." Trabajos de Estadistica 5, no. 1 (1990): 15–26. http://dx.doi.org/10.1007/bf02863535.

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Markoš, Peter, and C. M. Soukoulis. "Structures with negative index of refraction." physica status solidi (a) 197, no. 3 (2003): 595–604. http://dx.doi.org/10.1002/pssa.200303112.

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Lim, Teik-Cheng. "2D Structures Exhibiting Negative Area Compressibility." physica status solidi (b) 254, no. 12 (2017): 1600682. http://dx.doi.org/10.1002/pssb.201600682.

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Wu, T., and J. F. Mitchell. "Negative differential resistance in mesoscopic manganite structures." Applied Physics Letters 86, no. 25 (2005): 252505. http://dx.doi.org/10.1063/1.1946904.

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Sanada, A., C. Caloz, and T. Itoh. "Planar Distributed Structures With Negative Refractive Index." IEEE Transactions on Microwave Theory and Techniques 52, no. 4 (2004): 1252–63. http://dx.doi.org/10.1109/tmtt.2004.825703.

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Dissertations / Theses on the topic "Negative Structures"

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Mackenzie, D. S. "Modeling negative thermal expansion in network structures." Thesis, University of Exeter, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.441808.

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Lo, Ambrose, and 羅彥博. "On some negative dependence structures and their applications." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/206695.

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Recently, the study of negative dependence structures has aroused considerable interest amongst researchers in actuarial science and quantitative risk management. This thesis centres on two extreme negative dependence structures in different dimensions - counter-monotonicity and mutual exclusivity, and develops their novel characterizations and applications to risk management. Bivariate random vectors are treated in the first part of the thesis, where the characterization of comonotonicity by the optimality of aggregate sums in convex order is extended to its bivariate antithesis, namely, c
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Sudhakaran, Sunil. "Negative refraction from electromagnetic periodic structures and its applications." Thesis, Queen Mary, University of London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.430074.

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Ruan, Zhichao. "Dispersion Engineering : Negative Refraction and Designed Surface Plasmons in Periodic Structures." Doctoral thesis, Stockholm : Informations- och kommunikationsteknik, Kungliga Tekniska högskolan, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4542.

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Neri, Luca. "Negative Stiffness Structures: an additively manufactured design solution for aerospace applications." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/24997/.

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The aim of this project is to investigate two damping structures based on negative stiffness behavior and realized by Additive Manufacturing in the rubber like material Tango Gray. The first structure is based on the circular geometry by Wang et al. and Corsi et al. This structure is obtained by a circular repetition of an unit cell based on a curved beam plane geometry. When the curved beam is loaded the buckling instability phenomenon appears and the collapse of the structure reduces the force reaction: the fast change of configuration is called snap-through behaviour. If after buckling the
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Carette, Thomas. "Isotope effects in atomic spectroscopy of negative ions and neutral atoms: a theoretical contribution." Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210024.

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<p>Cette thèse est consacrée à l'étude des effets isotopiques dans les atomes neutres et ions négatifs. En particulier, nous ciblons notre recherche sur le calcul ab initio des déplacements isotopiques (DI) sur les électroaffinités des éléments des blocs p des deuxième et troisième périodes (B à F et Al à Cl). Ces derniers sont les systèmes les plus susceptibles d'être l'objet d'études expérimentales de haute précision.</p><p><p><p>Le premier chapitre se concentre sur une étude didactique du problème atomique et des effets isotopiques. Nous concluons par une description détaillée des motivatio
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Postma, Tiemen Rudolf. "Innovative laminate structures for tubular elements." Thesis, University of Bath, 2012. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.579514.

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The performance of peristaltic pumps is mainly governed by their tubing or hose materials. Research and development in this area is therefore very important for peristaltic pump manufacturers to keep in front of the competition and to open up new applications to enable further market penetration. Another aspect of this is of course price; performance and cost have to be in balance. As an approach to fabricate a new tube material, the field of negative Poisson's ratio (or: auxetic) materials is explored. The combined deformations of tensile, compression and shear in a peristaltic pump tube may
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Fellinger, Tim-Patrick. "Hydrothermal and ionothermal carbon structures : from carbon negative materials to energy applications." Phd thesis, Universität Potsdam, 2011. http://opus.kobv.de/ubp/volltexte/2012/5782/.

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The needs for sustainable energy generation, but also a sustainable chemistry display the basic motivation of the current thesis. By different single investigated cases, which are all related to the element carbon, the work can be devided into two major topics. At first, the sustainable synthesis of “useful” carbon materials employing the process of hydrothermal carbonisation (HC) is described. In the second part, the synthesis of heteroatom - containing carbon materials for electrochemical and fuel cell applications employing ionic liquid precursors is presented. On base of a thorough revie
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Gould, Rebecca J. "The Variable use of ne in Negative Structures: An Apparent-Time Variationist Study of Synchronous Electronic French Discourse." Thesis, University of North Texas, 2010. https://digital.library.unt.edu/ark:/67531/metadc33157/.

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This study of the variable use of ne in synchronous electronic French discourse follows the methodological guidelines and the theoretical framework proposed and subsequently elaborated by Labov for analyzing variable features of language. This thesis provides a quantitative variable rule (i.e., VARBRUL) analysis including age as a factor group (i.e., independent variable), thereby making a new contribution to this area of inquiry. The data (50,000 words from the vingtaine 'twentysomething' channel and 50,000 words from the cinquantaine 'fiftysomething' channel) are a subset of 100,000 words fr
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Chen, Da. "A Multi-Material Projection Stereolithography System for Manufacturing Programmable Negative Poissons Ratio Structures." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/74961.

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Digital light Projection based Additive Manufacturing (AM) enables fabrication of complex three-dimensional (3D) geometries for applications ranging from rapid prototyping jet parts to scaffolds for cell cultures. Despite the ability in producing complex, three-dimensional architectures, the state of art DLP AM systems is limited to a single homogenous photo-polymer and it requires a large volume of resin bath to begin with. Extensible Multi-material Stereolithography (EMSL) is a novel high-resolution projection stereolithography system capable of manufacturing hybrid 3D objects. This system p
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Books on the topic "Negative Structures"

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San Francisco (Calif.). Planning Dept. Mitigated negative declaration: [2003.1015E -- 1905 Mission Street]. Planning Dept., 2004.

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San Francisco (Calif.). Planning Dept., ed. Preliminary mitigated negative declaration: [450 Frederick Street]. Planning Dept., 2005.

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San Francisco (Calif.). Planning Dept. and Patri Merker Architects Inc, eds. Mitigated negative declaration: [1840 Washington Street residential development]. Planning Dept., 2005.

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San Francisco (Calif.). Planning Dept. and Village Builders 98 (Firm), eds. Preliminary mitigated negative declaration: [231 Franklin Street]. Planning Dept., 2007.

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San Francisco (Calif.). Planning Dept. Preliminary mitigated negative declaration: [1299 Bush Street]. Planning Dept., 2005.

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San Francisco (Calif.). Planning Dept., ed. Preliminary mitigated negative declaration: [701 Lombard St.]. Planning Dept., 2002.

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San Francisco (Calif.). Planning Dept. and COBEST LLC, eds. Preliminary mitigated negative declaration: [520 Chestnut Street]. Planning Dept., 2004.

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San Francisco (Calif.). Planning Dept., ed. Preliminary mitigated negative declaration: [605 Kearny St.]. Planning Dept., 2004.

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San Francisco (Calif.). Planning Dept., Glide Economic Development Corporation, Tenderloin Neighborhood Development Corporation, and Millennium Partners (Firm), eds. Preliminary mitigated negative declaration: [Glide Residential Development]. Planning Dept., 2006.

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San Francisco (Calif.). Planning Dept. Preliminary mitigated negative declaration: [1270 Mission Street]. Planning Dept., 2005.

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Book chapters on the topic "Negative Structures"

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Harrison, Mark, Vanessa Jakeman, and Ken Paterson. "Negative expressions & structures." In Improve Your Grammar. Macmillan Education UK, 2012. http://dx.doi.org/10.1007/978-1-137-27240-9_13.

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Hatzopoulos, Z., A. Georgakilas, L. Fotiadis, and A. Christou. "Negative Differential Resistance (NDR) Measurements." In Physics, Fabrication, and Applications of Multilayered Structures. Springer US, 1988. http://dx.doi.org/10.1007/978-1-4757-0091-6_32.

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Krowne, Clifford M. "Anisotropic Field Distributions in Left-Handed Guided Wave Electronic Structures and Negative Refractive Bicrystal Heterostructures." In Physics of Negative Refraction and Negative Index Materials. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-72132-1_2.

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Yao, Shanshan, Xiaoming Zhou, and Gengkai Hu. "Heterogeneous Structures with Negative Effective Mass." In IUTAM Symposium on Surface Effects in the Mechanics of Nanomaterials and Heterostructures. Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-4911-5_22.

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Zhou, Guan, Wanzhong Zhao, Yingxin Hu, and Chunyan Wang. "Overview of Negative Poisson's Ratio Structures." In Design, Manufacturing, and Application of Negative Poisson’s Ratio Structure. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-1937-5_1.

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Scarpa, F., and G. Tomlinson. "Sandwich Structures with Negative Poisson’s Ratio for Deployable Structures." In IUTAM-IASS Symposium on Deployable Structures: Theory and Applications. Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-015-9514-8_35.

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Alù, Andrea, and Nader Engheta. "An Overview of Salient Properties of Planar Guided-Wave Structures with Double-Negative (DNG) and Single-Negative (SNG) Layers." In Negative-Refraction Metamaterials. John Wiley & Sons, Inc., 2005. http://dx.doi.org/10.1002/0471744751.ch9.

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Voorwald, H. J. C., and M. A. S. Torres. "Negative Overload Effects in Fatigue Crack Growth." In Fracture of Engineering Materials and Structures. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3650-1_87.

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Dozois, David J. A., and Aaron T. Beck. "Negative thinking: Cognitive products and schema structures." In Treatment of psychosocial risk factors in depression. American Psychological Association, 2023. http://dx.doi.org/10.1037/0000332-010.

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Zhou, Guan, Wanzhong Zhao, Yingxin Hu, and Chunyan Wang. "Design Methods for Negative Poisson's Ratio Structures." In Design, Manufacturing, and Application of Negative Poisson’s Ratio Structure. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-1937-5_3.

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Conference papers on the topic "Negative Structures"

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Amare, Gizat Derebe, and Yonas Zewdu Ayele. "Effect of Negative Damping on Offshore Structures." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78715.

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Offshore structures are inevitably exposed to flow induced loads and flow-induced vibrations. The effect of these loads will affect the responses of structures, and the combined of two together on the response can lead the structures to induce different phenomena. The effect of damping is to counteract any dynamic response; however, “negative damping” increases the response amplitude. For example, the response amplitude may increase and can lead to structure instabilities, and it might cause damage in the short time. In order to achieve the best possible structural design, it is then relevant
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Bryant, Larry M., J. Mikhael Erekson, and Kenneth W. Herrle. "Are You Positive About Negative Phase?" In Structures Congress 2013. American Society of Civil Engineers, 2013. http://dx.doi.org/10.1061/9780784412848.010.

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Raju, Ivatury, Norman Knight, Darlene Lee, and Michael Mohaghegh. "Negative Stress Margins - Are They Real?" In 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. American Institute of Aeronautics and Astronautics, 2011. http://dx.doi.org/10.2514/6.2011-1808.

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Su, Yu-Chi, and Chin-Teh Sun. "Wave Amplification in Double Negative Elastic Metamaterials." In 56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. American Institute of Aeronautics and Astronautics, 2015. http://dx.doi.org/10.2514/6.2015-1121.

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Jung, Daeyoon, Hae Chang Gea, and Ren-Jye Yang. "Design of Negative Poisson's Ratio Materials Using Topology Optimization." In 45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference. American Institute of Aeronautics and Astronautics, 2004. http://dx.doi.org/10.2514/6.2004-1969.

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Attary, N., M. Symans, S. Nagarajaiah, et al. "Application of Negative Stiffness Devices for Seismic Protection of Bridge Structures." In Structures Congress 2012. American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412367.045.

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Pasala, D. T. R., A. A. Sarlis, S. Nagarajaiah, A. M. Reinhorn, M. C. Constantinou, and D. Taylor. "Negative Stiffness Device for Seismic Response Control of Multi-Story Buildings." In Structures Congress 2012. American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412374.008.

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Schenk, John O., R. P. Ingel, Michael A. Fiddy, and Weiguo Yang. "Split Band Edge Structures and Negative Index." In Slow and Fast Light. OSA, 2008. http://dx.doi.org/10.1364/sl.2008.smb6.

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Yang, Weiguo, John O. Schenk, and Michael A. Fiddy. "Energy Velocity in Negative Group Index Structures." In Slow and Fast Light. OSA, 2008. http://dx.doi.org/10.1364/sl.2008.swb5.

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Rosberg, Christian R., Dragomir N. Neshev, Andrey A. Sukhorukov, Wieslaw Krolikowski, and Yuri S. Kivshar. "Negative refraction in tunable periodic photonic structures." In Congress on Optics and Optoelectronics, edited by Waclaw Urbanczyk, Bozena Jaskorzynska, and Philip S. J. Russell. SPIE, 2005. http://dx.doi.org/10.1117/12.622634.

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Reports on the topic "Negative Structures"

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Enriquez, Erik, D. Shreiber, E. Ngo, et al. Optimization of Thick Negative Photoresist for Fabrication of Interdigitated Capacitor Structures. Defense Technical Information Center, 2015. http://dx.doi.org/10.21236/ada615865.

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Lopez, Pierlauro, David Lopez-Salido, and Francisco Vazquez-Grande. Nominal rigidities and the term structures of equity and bond returns. Federal Reserve Bank of Cleveland, 2023. http://dx.doi.org/10.26509/frbc-wp-202311.

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We present a production economy with nominal price rigidities that explains several asset pricing facts, including a downward-sloping term structure of the equity premium, upward sloping term structures of nominal and real interest rates, and the cyclical variation of the term structures. In the model, after a productivity shock a countercyclical labor share exacerbates the procyclicality of dividends, and hence their riskiness, and generates countercyclical inflation. The dividend share gradually increases after a negative productivity shock as the price level increases sluggishly, so the pay
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Morphett, Jane, Alexandra Whittaker, Amy Reichelt, and Mark Hutchinson. Perineuronal net structure as a non-cellular mechanism of affective state, a scoping review. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2021. http://dx.doi.org/10.37766/inplasy2021.8.0075.

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Is the perineuronal net structure within emotional processing brain regions associated with changes in affective state? The objective of this scoping review is to bring together the literature on human and animal studies which have measured perineuronal net structure in brain regions associated with emotional processing (such as but not limited to amygdala, hippocampus and prefrontal cortex). Perineuronal nets are a specialised form of condensed extracellular matrix that enwrap and protect neurons (Suttkus et al., 2016), regulate synaptic plasticity (Celio and Blumcke, 1994) and ion homeostasi
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Maigaard Paulsen, Maria, Sebastian Bruhn Petersen, Mikolaj Januchta, and Thomas Helmer Pedersen. Direct Air Capture i Danmark: En pixibog om vejen til negative CO2-emissioner i 2050. AAU Energy, 2024. http://dx.doi.org/10.54337/aau714713063.

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Denmark has set an ambitious target to achieve a 110% reduction in greenhouse gases by the year 2050 compared to emissions from 1990. Direct air carbon capture and storage (DACCS) is one of the few technologies capable of providing negative CO2 emissions. It is evident that Denmark cannot sustainably achieve this goal without implementing DACCS. The purpose of this white paper is to present the current status of DACCS in a Danish context. In this regard, we describe the resource consumption of water, energy, and land required to achieve the Danish goal of 110% greenhouse gas reductions by 2050
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Peydró, José Luis, Hernán Rincón-Castro, Miguel Sarmiento, and Alejandro Granados. Wealth Taxes and Firms’ Capital Structures: Credit Supply and Real Effects. Banco de la República, 2025. https://doi.org/10.32468/be.1316.

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We study the financial and real effects of a wealth tax reform in Colombia that included a large share of small and medium-sized enterprises (SMEs) as new taxpayers. The tax was introduced in response to a severe weather shock that affected several regions of the country. We use a unique administrative dataset consisting of business loans from the credit registry, matched with balance sheet data and tax reports from both banks and non-financial firms. We identify a concentration of firms around the new tax threshold confirming anticipation of the tax by some affected firms. The new taxpayer fi
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Basso, Henrique S., Myroslav Pidkuyko, and Omar Rachedi. Opening the black box: aggregate implications of public investment heterogeneity. Banco de España, 2025. https://doi.org/10.53479/38897.

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With multiple types of public capital, the aggregate implications of public investment crucially depend on the sum of the output elasticities of public capital across types. Abstracting from this heterogeneity and considering a single homogeneous type underestimates the effects of public investment. This is because the output elasticity of aggregate public capital is biased: it does not coincide with the sum of output elasticities of the different types. A quantitative model with public investment in equipment, structures, and intangibles implies substantial negative bias. Heterogeneity in pub
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Bravo-Ureta, Boris E., and Horacio Cocchi. On-Site Costs and Benefits of Soil Conservation Among Hillside Farmers in El Salvador. Inter-American Development Bank, 2007. http://dx.doi.org/10.18235/0011143.

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This study analyses the relationships between farm income, adoption of conservation technologies and output diversification among PAES participants by comparing their performance at two points in time, 2002 and 2005, and against non-participants (control group) in 2005. The indicators reveal that the soil conservation and agroforestry component of PAES has been highly profitable. The outcome of the study shows crop diversification and soil conservation practices exhibit a strong positive association with the length of farmers' involvement with PAES and their participation in social organizatio
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Rohwerder, Brigitte, and Carolina Szyp. The Risks and Outcomes of Getting Help for Marginalised People: Navigating Access to Social Assistance in Crises. Institute of Development Studies (IDS), 2022. http://dx.doi.org/10.19088/basic.2022.007.

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Crises exacerbate existing inequalities and vulnerabilities for marginalised people, including women and girls, children and youth, older people, people with disabilities, ethnic and religious minorities, and sexual and gender minorities. Many of them face multiple and intersecting inequalities, especially people who are forcibly displaced. Social assistance seeks to alleviate crisis impacts by protecting vulnerable people and averting them from deprivation, but the same structures and systems that make some people more exposed (and excluded) generally can exclude them from social assistance i
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Panadeiros, Monica, Fernando Navajas, and Oscar Natale. Workable Environmentally Related Energy Taxes. Inter-American Development Bank, 2012. http://dx.doi.org/10.18235/0011421.

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This paper models an energy tax reform process out of a status quo and towards environmentally related excises, distinguishing between uniform and non-uniform tax components, positive and normative tax structures, and adopting a non- Ramsey specification. The model is implemented for Argentina, Bolivia and Uruguay, and a rebalancing of fuel taxes is found where gasoline and diesel are the main drivers, due in part to higher estimates of the environmental costs of diesel relative to gasoline than those found in Parry and Strand (2010) for Chile. Environmental (mostly local) gains of the reform
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Lowney, Martin S., Scott F. Beckerman, Scott C. Barras, and Thomas W. Seamans. Gulls. U.S. Department of Agriculture, Animal and Plant Health Inspection Service, 2018. http://dx.doi.org/10.32747/2018.7208740.ws.

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Abundant gull populations in North America have led to a variety of conflicts with people. Gulls cause damage at aquaculture facilities and other properties, and often collide with aircraft. Their use of structures on and near water results in excessive amounts of bird droppings on boats and docks. Their presence near outdoor dining establishments, swimming beaches, and recreational sites can lead to negative interactions with people. Large amounts of gull fecal material pollutes water and beaches resulting in drinking water contamination and swim bans. A combination of dispersal techniques, e
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