Готові списки джерел за темами / Variational critical problems

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Добірка наукової літератури з теми "Variational critical problems"

Автор: Grafiati
Опубліковано: 10 березня 2023
Оновлено: 31 липня 2025

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Статті в журналах з теми "Variational critical problems"

1

Ambrosetti, Antonio. "Critical points and nonlinear variational problems." Mémoires de la Société mathématique de France 1 (1992): 1–139. http://dx.doi.org/10.24033/msmf.362.

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2

Prigozhin, Leonid. "Variational inequalities in critical-state problems." Physica D: Nonlinear Phenomena 197, no. 3-4 (2004): 197–210. http://dx.doi.org/10.1016/j.physd.2004.07.001.

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3

Prigozhin, L. "On the Bean critical-state model in superconductivity." European Journal of Applied Mathematics 7, no. 3 (1996): 237–47. http://dx.doi.org/10.1017/s0956792500002333.

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We consider two-dimensional and axially symmetric critical-state problems in type-II superconductivity, and show that these problems are equivalent to evolutionary quasi-variational inequalities. In a special case, where the inequalities become variational, the existence and uniqueness of the solution are proved.
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4

Leonardi, Salvatore, and Nikolaos S. Papageorgiou. "On a class of critical Robin problems." Forum Mathematicum 32, no. 1 (2020): 95–109. http://dx.doi.org/10.1515/forum-2019-0160.

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AbstractWe consider a nonlinear parametric Robin problem. In the reaction, there are two terms, one critical and the other locally defined. Using cut-off techniques, together with variational tools and critical groups, we show that, for all small values of the parameter, the problem has at least three nontrivial smooth solutions all with sign information, which converge to zero in {C^{1}(\bar{\Omega})} as the parameter {\lambda\to 0^{+}}.
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5

Stupishin, Leonid U. "Variational Criteria for Critical Levels of Internal Energy of a Deformable Solids." Applied Mechanics and Materials 578-579 (July 2014): 1584–87. http://dx.doi.org/10.4028/www.scientific.net/amm.578-579.1584.

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Variational formulation of the problem of the analysis and synthesis of deformable structures are proposed. It allows studying nonlinear problems of structural mechanics from a single standpoint, from a consideration of the General variational principle.
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6

Ambrosetti, A., J. Garcia Azorero, and I. Peral. "Elliptic Variational Problems in RN with Critical Growth." Journal of Differential Equations 168, no. 1 (2000): 10–32. http://dx.doi.org/10.1006/jdeq.2000.3875.

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7

Hammouti, Omar, Said Taarabti, and Ravi Agarwal. "Anisotropic discrete boundary value problems." Applicable Analysis and Discrete Mathematics, no. 00 (2023): 8. http://dx.doi.org/10.2298/aadm220824008h.

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Анотація:
For an anisotropic discrete nonlinear problem with variable exponent, we demonstrate both the existence and multiplicity of nontrivial solutions in this study. The variational principle and critical point theory are the key techniques employed here.
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8

Gazzola, Filippo. "Positive solutions of critical quasilinear elliptic problems in general domains." Abstract and Applied Analysis 3, no. 1-2 (1998): 65–84. http://dx.doi.org/10.1155/s108533759800044x.

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We consider a certain class of quasilinear elliptic equations with a term in the critical growth range. We prove the existence of positive solutions in bounded and unbounded domains. The proofs involve several generalizations of standard variational arguments.
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9

Li, Lin, and Stepan Tersian. "Fractional problems with critical nonlinearities by a sublinear perturbation." Fractional Calculus and Applied Analysis 23, no. 2 (2020): 484–503. http://dx.doi.org/10.1515/fca-2020-0023.

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Анотація:
AbstractIn this paper, the existence of two nontrivial solutions for a fractional problem with critical exponent, depending on real parameters, is established. The variational approach is used based on a local minimum theorem due to G. Bonanno. In addition, a numerical estimate on the real parameters is provided, for which the two solutions are obtained.
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10

Drissi, Amor, Abdeljabbar Ghanmi, and Dusan D. Repovs. "Singular p-biharmonic problems involving the Hardy-Sobolev exponent." Electronic Journal of Differential Equations 2023, no. 01-?? (2023): 61. http://dx.doi.org/10.58997/ejde.2023.61.

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Анотація:
This article concerns the existence and multiplicity of solutions for the singular p-biharmonic problem involving the Hardy potential and the critical Hardy-Sobolev exponent. To this end we use variational methods combined with the Mountain pass theorem and the Ekeland variational principle. We illustrate the usefulness of our results with and example.
 For mote information see https://ejde.math.txstate.edu/Volumes/2023/61/abstr.html
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Дисертації з теми "Variational critical problems"

1

Felli, Veronica. "Elliptic variational problems with critical exponent." Doctoral thesis, SISSA, 2003. http://hdl.handle.net/20.500.11767/4304.

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Fiscella, A. "VARIATIONAL PROBLEMS INVOLVING NON-LOCAL ELLIPTIC OPERATORS." Doctoral thesis, Università degli Studi di Milano, 2014. http://hdl.handle.net/2434/245334.

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Анотація:
My thesis deals with nonlinear elliptic problems involving a non-local integrodifferential operator of fractional type. Our main results concern the existence of weak solutions for these problems and they are obtained using variational and topological methods.
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3

Maad, Sara. "Critical point theory with applications to semilinear problems without compactness." Doctoral thesis, Uppsala : Matematiska institutionen, Univ. [distributör], 2002. http://publications.uu.se/theses/91-506-1557-2/.

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4

König, Tobias [Verfasser], and Rupert [Akademischer Betreuer] Frank. "Symmetry, uniqueness and blow-up in some elliptic variational problems with critical exponent / Tobias König ; Betreuer: Rupert Frank." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2020. http://d-nb.info/1215499914/34.

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Souza, Diego Ferraz de. "Concentration-compactness principle and applications to nonlocal elliptic problems." Universidade Federal da Paraíba, 2016. http://tede.biblioteca.ufpb.br:8080/handle/tede/9308.

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Submitted by ANA KARLA PEREIRA RODRIGUES (anakarla_@hotmail.com) on 2017-08-23T16:14:54Z No. of bitstreams: 1 arquivototal.pdf: 1030469 bytes, checksum: fd75dc32951ccd2147ed562db94af22a (MD5)<br>Made available in DSpace on 2017-08-23T16:14:54Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 1030469 bytes, checksum: fd75dc32951ccd2147ed562db94af22a (MD5) Previous issue date: 2016-12-13<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>The main goal of this work is to analyze concentration-compactness principles for fractional Sobolev spaces based on the concentration co
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6

Freitas, Luciana Roze de. "Existência e multiplicidade de soluções para uma classe de problemas quasilineares com crescimento crítico exponencial." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/55/55135/tde-18012011-145302/.

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Анотація:
Neste trabalho, mostramos a existência e multiplicidade de soluções para a seguinte classe de equações elípticas quasilineares { - \'DELTA IND. \'NÜ\' POT. \'upsilon\' + \'|\'upsilon\'| POT. \'NÜ\' - 2 \'upsilon\' = f(x, u), \'upsilon\' \'DIFERENTE\' 0, \'upsilon\' \'PERTENCE A >>: Nu + jujN2 u = f(x; u); x 2 ; u 6= 0; u 2 W1;N( ); onde e um domnio em RN, N 2, N e o operador N-Laplaciano e f e uma func~ao que possui um crescimento crtico exponencial. Para obter nossos resultados utilizamos o Princpio Variacional de Ekeland, Teorema do Passo da Montanha, Categoria de Lusternik- Schnirelm
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7

Guimarães, Angelo. "Existência e multiplicidade de soluções de problemas elípticos com termo semilinear côncavo-convexo." Universidade Federal de Goiás, 2017. http://repositorio.bc.ufg.br/tede/handle/tede/6901.

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Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2017-03-06T14:33:05Z No. of bitstreams: 2 Dissertação - Angelo Guimarães - 2017.pdf: 2117097 bytes, checksum: dec3403d71344aacfe3834890266b503 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-03-06T14:33:53Z (GMT) No. of bitstreams: 2 Dissertação - Angelo Guimarães - 2017.pdf: 2117097 bytes, checksum: dec3403d71344aacfe3834890266b503 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made available in
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Milbers, Zoja. "Eigenvalue Problem for the 1-Laplace Operator." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1238150433158-43544.

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Анотація:
We consider the eigenvalue problem associated to the 1-Laplace operator. We define higher eigensolutions by means of weak slope and establish existence of a sequence of eigensolutions by using nonsmooth critical point theory. In addition, we deduce a new necessary condition for the first eigenvalue of the 1-Laplace operator by means of inner variations<br>Wir betrachten das zum 1-Laplace-Operator gehörige Eigenwertproblem. Wir definieren höhere Eigenlösungen mittels weak slope und weisen die Existenz einer Folge von Eigenlösungen nach, indem wir die nichtglatte Theorie kritischer Punkte anwend
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Abreu, Rafael dos Reis 1983. "Soluções ground state para algumas classes de problemas elípticos." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/305901.

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Orientador: Marcelo da Silva Montenegro<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Matemática Estatística e Computação Científica<br>Made available in DSpace on 2018-08-23T11:08:01Z (GMT). No. of bitstreams: 1 Abreu_RafaeldosReis_D.pdf: 1052192 bytes, checksum: 6fe840dfe507b4cc6c5ad9f908da486a (MD5) Previous issue date: 2013<br>Resumo: Neste trabalho, tratamos de resultados de existência de soluções ground state para algumas classes de problemas elípticos sobre espaços euclidianos ou sobre domínios exteriores. Nos casos em que consideramos um domínio exterior, con
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Almeida, Samuel Oliveira de. "Soluções para problemas elípticos envolvendo o expoente crítico de Sobolev." Universidade Federal de Juiz de Fora, 2013. https://repositorio.ufjf.br/jspui/handle/ufjf/1468.

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Submitted by Renata Lopes (renatasil82@gmail.com) on 2016-05-11T15:47:00Z No. of bitstreams: 1 samueloliveiradealmeida.pdf: 770018 bytes, checksum: 7270cb9d1478f3f95d8316be0a0c13aa (MD5)<br>Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2016-06-27T18:35:32Z (GMT) No. of bitstreams: 1 samueloliveiradealmeida.pdf: 770018 bytes, checksum: 7270cb9d1478f3f95d8316be0a0c13aa (MD5)<br>Made available in DSpace on 2016-06-27T18:35:32Z (GMT). No. of bitstreams: 1 samueloliveiradealmeida.pdf: 770018 bytes, checksum: 7270cb9d1478f3f95d8316be0a0c13aa (MD5) Previ
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Книги з теми "Variational critical problems"

1

Ambrosetti, A. Critical points and nonlinear variational problems. Société mathématique de France, 1992.

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2

Bartsch, Thomas. Topological methods for variational problems with symmetries. Springer-Verlag, 1993.

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3

Bahri, A. Critical points at infinity in some variational problems. Longman Scientific & Technical, 1989.

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4

Ontario. Esquisse de cours 12e année: Sciences de l'activité physique pse4u cours préuniversitaire. CFORP, 2002.

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5

Ontario. Esquisse de cours 12e année: Technologie de l'information en affaires btx4e cours préemploi. CFORP, 2002.

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6

Ontario. Esquisse de cours 12e année: Études informatiques ics4m cours préuniversitaire. CFORP, 2002.

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7

Ontario. Esquisse de cours 12e année: Mathématiques de la technologie au collège mct4c cours précollégial. CFORP, 2002.

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8

Ontario. Esquisse de cours 12e année: Sciences snc4m cours préuniversitaire. CFORP, 2002.

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9

Ontario. Esquisse de cours 12e année: English eae4e cours préemploi. CFORP, 2002.

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10

Ontario. Esquisse de cours 12e année: Le Canada et le monde: une analyse géographique cgw4u cours préuniversitaire. CFORP, 2002.

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Частини книг з теми "Variational critical problems"

1

Precup, Radu. "Compression–Expansion Critical Point Theorems in Conical Shells." In Nonlinear Analysis and Variational Problems. Springer New York, 2009. http://dx.doi.org/10.1007/978-1-4419-0158-3_12.

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2

Motreanu, Dumitru, Viorica Venera Motreanu, and Nikolaos Papageorgiou. "Variational Principles and Critical Point Theory." In Topological and Variational Methods with Applications to Nonlinear Boundary Value Problems. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-9323-5_5.

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3

Conti, M., and R. Lucchetti. "The Minimax Approach to the Critical Point Theory." In Recent Developments in Well-Posed Variational Problems. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-015-8472-2_2.

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4

Bartsch, Thomas. "Category, genus and critical point theory with symmetries." In Topological Methods for Variational Problems with Symmetries. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/bfb0073861.

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5

Hebey, Emmanuel. "Bubbles over Bubbles: A C 0-theory for the Blow-up of Second Order Elliptic Equations of Critical Sobolev Growth." In Variational Problems in Riemannian Geometry. Birkhäuser Basel, 2004. http://dx.doi.org/10.1007/978-3-0348-7968-2_1.

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6

Reichel, Wolfgang. "2. Uniqueness of critical points (I)." In Uniqueness Theorems for Variational Problems by the Method of Transformation Groups. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-40915-1_2.

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Reichel, Wolfgang. "3. Uniqueness of critical points (II)." In Uniqueness Theorems for Variational Problems by the Method of Transformation Groups. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-40915-1_3.

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del Pino, M., P. Felmer, and M. Musso. "Spike Patterns in the Super-Critical Bahri—Coron Problem." In Variational and Topological Methods in the Study of Nonlinear Phenomena. Birkhäuser Boston, 2002. http://dx.doi.org/10.1007/978-1-4612-0081-9_7.

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Goodman, David C. "Population-Based Measures of Newborn Care Variation: A Critical Piece of Improving Perinatal Outcomes." In The Problem of Practice Variation in Newborn Medicine. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-94655-5_7.

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10

Hirsch, Dennis, Timothy Bartley, Aravind Chandrasekaran, Davon Norris, Srinivasan Parthasarathy, and Piers Norris Turner. "Risks: From Privacy and Manipulation to Bias and Displacement." In SpringerBriefs in Law. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-21491-2_3.

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AbstractThis chapter leverages findings from both our semi-structured interviews and original survey to discuss the types of risks central to how data ethics managers and their advisors think about advanced analytics and AI. Both survey respondents and interview participants highlighted a broad range of concerns raised by their use of advanced analytics ranging from invasion of privacy and manipulation to bias against protected classes and concerns about power imbalances. While the risks were wide ranging, some risks received more attention than others. Respondents were far more focused on pri
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Тези доповідей конференцій з теми "Variational critical problems"

1

Sinsay, Jeffrey, and Juan Alonso. "Heuristic Discovery of Improved Rotor Designs." In Vertical Flight Society 74th Annual Forum & Technology Display. The Vertical Flight Society, 2018. http://dx.doi.org/10.4050/f-0074-2018-12717.

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Selecting the right design parametrization can be critical to finding a rotor design optimum of practical value, and can be highly dependent on the a priori knowledge of the designer. This selection problem is particularly challenging for the human designer when designing a novel configuration or in an operating environment not well understood. A heuristic approach to allow for discovery of better parametrizations as optimization proceeds is described and demonstrated on a representative rotor design problem. The heuristic applies important principles of evolutionary theory including: mutation
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2

Macdonald, Ruaridh, and Dharik S. Mallapragada. "Integrated Design and Scheduling Optimization of Multi-product processes � case study of Nuclear-Based Hydrogen and Electricity Co-Production." In Foundations of Computer-Aided Process Design. PSE Press, 2024. http://dx.doi.org/10.69997/sct.158610.

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Increasing wind and solar electricity generation in power systems increases temporal variability in electricity prices which incentivizes the development of flexible processes for electricity generation and electricity-based fuels/chemicals production. Here, we develop a computational framework for the integrated design and optimization of multi-product processes interacting with the grid under time-varying electricity prices. Our analysis focuses on the case study of nuclear-based hydrogen (H2) and electricity generation, involving nuclear power plants (NPP) producing high temperature heat an
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3

Lee, Yi, Rohit Jain, Chi-An Yeh, and Ashok Gopalarathnam. "Exploring the Connection between Leading-Edge Suction and Dynamic Stall on Rotors." In Vertical Flight Society 80th Annual Forum & Technology Display. The Vertical Flight Society, 2024. http://dx.doi.org/10.4050/f-0080-2024-1238.

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Dynamic stall continues to be a limiting factor for rotorcraft performance in forward flight. The complex flow physics, resulting from blade kinematics, aeroelastic deformations, and blade-vortex interactions, makes this problem challenging. The availability of results from recent high-fidelity coupled computational aerodynamics-structural dynamics simulations provides an opportunity to gain new insights into the physics of dynamic stall on rotor blades in realistic operating conditions. Recent research efforts have also resulted in the identification of a leading-edge suction parameter (LESP)
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Kessler, Sylvia. "The Determination of the Chloride Threshold of Stainless Steel in Concrete – a Review." In CORROSION 2021. AMPP, 2021. https://doi.org/10.5006/c2021-16179.

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Abstract Reinforced concrete infrastructure frequently requires maintenance and repair before the designed service life is reached despite the fact that the structure complied with the durability design rules at the time of construction. A major reason is the corrosion of the reinforcement due to chloride exposure. One solution to overcome the problem is the use of stainless steel as reinforcement instead of carbon steel. There is a huge variation of stainless steels on the market with different levels of corrosion resistances. To enable the estimation of the structures’ service life and for t
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Reichel, Wolfgang. "Supercritical variational problems with unique critical points." In Proceedings of the 4th European Conference. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812777201_0024.

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Rosen, David W., Wei Chen, Stewart Coulter, and Srinivas Vadde. "Goal-Directed Geometry: Beyond Parametric and Variational Geometry CAD Technologies." In ASME 1994 Design Technical Conferences collocated with the ASME 1994 International Computers in Engineering Conference and Exhibition and the ASME 1994 8th Annual Database Symposium. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/detc1994-0084.

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Abstract Improved computer-aided design tools can significantly impact designer productivity. The ability to formulate and solve “What if” questions is critical in early design stages. In this paper, a new computational framework for preliminary design, called Goal-Directed Geometry, is presented that provides such an exploratory environment for early stages. Tools for parametric geometry, variational modeling, and feature-based design are combined with a multiobjective optimization code to provide robust support for parametric design problems, where parameter values are desired that best meet
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Goun, A. A., and O. K. Sliva. "Time Optimal Transfer Function of a Mechanism in the Presence of Dissipative Forces." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-61907.

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A variety of optimization problems in theoretical mechanics are related to the problem of finding the quickest operating mechanism among all possible mechanisms. Let us consider a mechanical system with one degree of freedom consisting of leading and lagging links with masses M1 and M2 respectively. Source of mechanical energy is attached to the leading link and its potential energy is known as a function of the position of the leading link. Positions of the leading - x and lagging links - y are related through the position function. Now the optimization problem can be formulated in the follow
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Goun, A. A., O. K. Sliva, and Vyacheslav Murzin. "Time Optimal Transfer Function of a Mechanism." In ASME 7th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2004. http://dx.doi.org/10.1115/esda2004-58384.

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Анотація:
A variety of optimization problems in theoretical mechanics are related to the problem of finding the quickest operating mechanism among all possible mechanisms. It can be formulated in the following way. Let us consider a mechanical system with one degree of freedom consisting of leading and lagging links with masses M1 and M2 respectively. Source of mechanical energy is attached to the leading link and its potential energy is known as a function of the position of the leading link. Positions of the leading - x and lagging links - y are related through the position function. Now the optimizat
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9

White, Joshua A., and Ronaldo I. Borja. "Stabilized Finite Element Methods for Coupled Solid-Deformation/Fluid-Flow in Porous Geomaterials." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-66524.

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We present a finite element formulation for saturated and partially saturated porous geomaterials undergoing elastoplastic deformations. The deforming body is treated as a multiphase continuum, and the governing mass and momentum balance equations are solved in a fully coupled manner. The constitutive behavior of the solid is based on a critical state plasticity model that explicitly accounts for the effect of capillary pressures on the geometry of the yield surface in the partially saturated regime. It is well known, however, that mixed formulations of the type examined here may lead to unsta
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10

Lo¨o¨f, Johan, Lars Lindkvist, and Rikard So¨derberg. "Optimizing Locator Position to Maximize Robustness in Critical Product Dimensions." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-86598.

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Анотація:
The way parts are located in relation to each other or in fixtures is critical for how geometrical variation will propagate and cause variation in critical product dimensions. Therefore, more emphasis should be put on this activity in early design phases in order to avoid assembly and production problems later on. In earlier literature, locator positions have been defined using optimization to reach a robust locating scheme. This implies that the total robustness of a part is optimized by placing the locators in an optimal way. Sometimes there are areas on parts that are more sensitive to vari
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Звіти організацій з теми "Variational critical problems"

1

Hertel, Thomas, David Hummels, Maros Ivanic, and Roman Keeney. How Confident Can We Be in CGE-Based Assessments of Free Trade Agreements? GTAP Working Paper, 2003. http://dx.doi.org/10.21642/gtap.wp26.

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Анотація:
With the proliferation of Free Trade Agreements (FTAs) over the past decade, demand for quantitative analysis of their likely impacts has surged. The main quantitative tool for performing such analysis is Computable General Equilibrium (CGE) modeling. Yet these models have been widely criticized for performing poorly (Kehoe, 2002) and having weak econometric foundations (McKitrick, 1998; Jorgenson, 1984). FTA results have been shown to be particularly sensitive to the trade elasticities, with small trade elasticities generating large terms of trade effects and relatively modest efficiency gain
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2

Issa, Mohsen, Ali Alawieh, and Hussein Daoud. Concrete Bridge Deck Crack Sealing. Illinois Center for Transportation, 2024. http://dx.doi.org/10.36501/0197-9191/24-007.

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Анотація:
Bridge decks are prone to various types of cracking due to a combination of factors, including traffic loads, temperature variations, moisture, and chemical exposure. This report tackles the critical issue of bridge deck cracking by systematically dissecting the problem, exploring various crack types, and emphasizing the crucial inspection and categorization of cracks for effective remediation planning. The report focuses on the selection of appropriate sealants, considering regional conditions. It delves into remediation treatments, offering a spectrum of options based on National Bridge Inve
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3

Komba, Aneth, and Richard Shukia. An Analysis of the Basic Education Curriculum in Tanzania: The Integration, Scope, and Sequence of 21st Century Skills. Research on Improving Systems of Education (RISE), 2023. http://dx.doi.org/10.35489/bsg-rise-wp_2023/129.

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Анотація:
This study generated evidence on whether or not the basic education curriculum is geared towards developing problem-solving, collaboration, creativity, and critical thinking skills among those who graduate from the basic education system. It was informed by a mixed methodology research approach. The data were collected using interviews and documentary review. The findings reveal that the intention to promote 21st century skills through the basic education system in Tanzania is clear, as it is stated in various policy documents, including the Education for Self-Reliance philosophy, the 2014 Edu
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4

Peitz, David, and Naomi Reibold. White-tailed deer monitoring at Arkansas Post National Memorial, Arkansas: 2005–2020 trend report. Edited by Tani Hubbard. National Park Service, 2021. http://dx.doi.org/10.36967/nrr-2285087.

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Анотація:
From 16 years (2005–2020) of monitoring trends in white-tailed deer within a defined survey area of Arkansas Post National Memorial, we have been able to demonstrate both population declines and recoveries. The adjusted count of deer had a seven-fold increase between 2007 and 2011 following a two-year decline and a three-fold increase between 2017 and 2019 following a six-year decline. Overall, the deer population has declined slightly, averaging a 0.5% reduction in herd size annually. The number of deer in the survey area ranged from 16.77 ± 21.26 (mean + 95% CI) individuals/km2 in 2007 to 11
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5

Thomas, Strobel. A contrastive approach to grammatical doubts in some contemporary Germanic languages (German, Dutch, Swedish). Goethe-Universität Frankfurt a.M., 2023. http://dx.doi.org/10.21248/gups.72278.

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Анотація:
Unquestionably (or: undoubtedly), every competent speaker has already come to doubt with respect to the question of which form is correct or appropriate and should be used (in the standard language) when faced with two or more almost identical competing variants of words, word forms or sentence and phrase structure (e.g. German "Pizzas/Pizzen/Pizze" 'pizzas', Dutch "de drie mooiste/mooiste drie stranden" 'the three most beautiful/most beautiful three beaches', Swedish "större än jag/mig" 'taller than I/me'). Such linguistic uncertainties or "cases of doubt" (cf. i.a. Klein 2003, 2009, 2018; Mü
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6

Hubbard, Tani, Jennifer Haack-Gaynor, David Peitz, Jennifer Haack-Gaynor, Tani Hubbard, and David Peitz. White-tailed deer monitoring at Arkansas Post National Memorial, Arkansas: 2005?2024 trend report. National Park Service, 2024. http://dx.doi.org/10.36967/2306678.

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Анотація:
During the 20-year period (2005?2024) that the Heartland Inventory and Monitoring Network has monitored trends in white-tailed deer within a defined survey area of Arkansas Post National Memorial, we have observed both population declines and recoveries. The adjusted deer count increased seven-fold between 2007 and 2011 following a two-year decline and increased three-fold between 2017 and 2019 following a six-year decline. Currently, Arkansas Post National Memorial is experiencing a five-year decline in deer based on adjusted counts. Across the 20-year monitoring period, a non-significant (P
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7

Heitman, Joshua L., Alon Ben-Gal, Thomas J. Sauer, Nurit Agam, and John Havlin. Separating Components of Evapotranspiration to Improve Efficiency in Vineyard Water Management. United States Department of Agriculture, 2014. http://dx.doi.org/10.32747/2014.7594386.bard.

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Анотація:
Vineyards are found on six of seven continents, producing a crop of high economic value with much historic and cultural significance. Because of the wide range of conditions under which grapes are grown, management approaches are highly varied and must be adapted to local climatic constraints. Research has been conducted in the traditionally prominent grape growing regions of Europe, Australia, and the western USA, but far less information is available to guide production under more extreme growing conditions. The overarching goal of this project was to improve understanding of vineyard water
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