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Добірка наукової літератури з теми "Locally coherent"

Автор: Grafiati

Опубліковано: 11 березня 2023

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Статті в журналах з теми "Locally coherent"

Saorín, Manuel. "On locally coherent hearts." Pacific Journal of Mathematics 287, no. 1 (February 6, 2017): 199–221. http://dx.doi.org/10.2140/pjm.2017.287.199.

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Chauris, Hervé, Mark S. Noble, Gilles Lambaré, and Pascal Podvin. "Migration velocity analysis from locally coherent events in 2‐D laterally heterogeneous media, Part I: Theoretical aspects." GEOPHYSICS 67, no. 4 (July 2002): 1202–12. http://dx.doi.org/10.1190/1.1500382.

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We present a new method based on migration velocity analysis (MVA) to estimate 2‐D velocity models from seismic reflection data with no assumption on reflector geometry or the background velocity field. Classical approaches using picking on common image gathers (CIGs) must consider continuous events over the whole panel. This interpretive step may be difficult—particularly for applications on real data sets. We propose to overcome the limiting factor by considering locally coherent events. A locally coherent event can be defined whenever the imaged reflectivity locally shows lateral coherency at some location in the image cube. In the prestack depth‐migrated volume obtained for an a priori velocity model, locally coherent events are picked automatically, without interpretation, and are characterized by their positions and slopes (tangent to the event). Even a single locally coherent event has information on the unknown velocity model, carried by the value of the slope measured in the CIG. The velocity is estimated by minimizing these slopes. We first introduce the cost function and explain its physical meaning. The theoretical developments lead to two equivalent expressions of the cost function: one formulated in the depth‐migrated domain on locally coherent events in CIGs and the other in the time domain. We thus establish direct links between different methods devoted to velocity estimation: migration velocity analysis using locally coherent events and slope tomography. We finally explain how to compute the gradient of the cost function using paraxial ray tracing to update the velocity model. Our method provides smooth, inverted velocity models consistent with Kirchhoff‐type migration schemes and requires neither the introduction of interfaces nor the interpretation of continuous events. As for most automatic velocity analysis methods, careful preprocessing must be applied to remove coherent noise such as multiples.

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Armstrong, Thomas E., and William D. Sudderth. "Locally Coherent Rates of Exchange." Annals of Statistics 17, no. 3 (September 1989): 1394–408. http://dx.doi.org/10.1214/aos/1176347278.

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Belaid, Karim, Othman Echi, and Riyadh Gargouri. "Two classes of locally compact sober spaces." International Journal of Mathematics and Mathematical Sciences 2005, no. 15 (2005): 2421–27. http://dx.doi.org/10.1155/ijmms.2005.2421.

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We deal with two classes of locally compact sober spaces, namely, the class of locally spectral coherent spaces and the class of spaces in which every point has a closed spectral neighborhood (CSN-spaces, for short). We prove that locally spectral coherent spaces are precisely the coherent sober spaces with a basis of compact open sets. We also prove that CSN-spaces are exactly the locally spectral coherent spaces in which every compact open set has a compact closure.

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Odabaşı, Sinem. "Locally torsion-free quasi-coherent sheaves." Journal of Pure and Applied Algebra 218, no. 9 (September 2014): 1760–70. http://dx.doi.org/10.1016/j.jpaa.2014.02.002.

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HAGHANY, A., M. MAZROOEI, and M. R. VEDADI. "PURE PROJECTIVITY AND PURE INJECTIVITY OVER FORMAL TRIANGULAR MATRIX RINGS." Journal of Algebra and Its Applications 11, no. 06 (November 14, 2012): 1250107. http://dx.doi.org/10.1142/s0219498812501071.

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Over a formal triangular matrix ring we study pure injective, pure projective and locally coherent modules. Some applications are then given, in particular the (J-)coherence of the ring [Formula: see text] is characterized whenever BM is flat.

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Aghasi, Mansour, and Hamidreza Nemati. "Absolute purity in the category of quasi coherent sheaves." Filomat 29, no. 7 (2015): 1663–69. http://dx.doi.org/10.2298/fil1507663a.

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In this paper we consider the class of absolutely pure and Fp-injective quasi-coherent sheaves. We show that these two classes of quasi-coherent sheaves over a locally coherent scheme are equivalent. As a corollary we will show that the class of absolutely pure quasi-coherent sheaves over such a scheme is an enveloping and a covering class. It is proved that over a locally coherent scheme, the pair (?(Abs(X),Abs(X)) is a cotorsion theory. The existence of a duality between absolutely pure envelopes and flat covers is proved as expected.

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Krause, Henning. "The spectrum of a locally coherent category." Journal of Pure and Applied Algebra 114, no. 3 (January 1997): 259–71. http://dx.doi.org/10.1016/s0022-4049(95)00172-7.

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Lu, Wenkai, Wenpo Zhang, and Dongqi Liu. "Local linear coherent noise attenuation based on local polynomial approximation." GEOPHYSICS 71, no. 6 (November 2006): V163—V169. http://dx.doi.org/10.1190/1.2335873.

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We propose a new technique for the attenuation of locally coherent noise. We assume that the moveout of the noise is locally linear and approximate its amplitude variations with offset using piecewise (local) polynomial models. Thus, our method consists of three steps: detection of the noise (locally linear coherent noise, LLCN), amplitude estimation by a local polynomial approximation (LPA), and subtraction of the estimated coherent noise from the original data. Applying the proposed method to synthetic data and to a field data set shows that the LPA filter has good ability to model LLCN and is insensitive to the filter parameters. Comparisons of the results obtained by our method with those from the traditional frequency-wavenumber filter and the localized 2D filter in the Fourier projection domain (FPF) show that the new method outperforms both traditional methods in situations with complex coherent noise.

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Child, M. S., and D. V. Shalashilin. "Locally coupled coherent states and Herman–Kluk dynamics." Journal of Chemical Physics 118, no. 5 (February 2003): 2061–71. http://dx.doi.org/10.1063/1.1531997.

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Дисертації з теми "Locally coherent"

Martini, Lorenzo. "Local coherence of hearts in the derived category of a commutative ring." Doctoral thesis, Università degli studi di Trento, 2022. http://hdl.handle.net/11572/354322.

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Approximation theory is a fundamental tool in order to study the representation theory of a ring R. Roughly speaking, it consists in determining suitable additive or abelian subcategories of the whole module category Mod-R with nice enough functorial properties. For example, torsion theory is a well suited incarnation of approximation theory. Of course, such an idea has been generalised to the additive setting itself, so that both Mod-R and other interesting categories related with R may be linked functorially. By the seminal work of Beilinson, Bernstein and Deligne (1982), the derived category of the ring turns out to admit useful torsion theories, called t-structures: they are pairs of full subcategories of D(R) whose intersection, called the heart, is always an abelian category. The so-called standard t-structure of D(R) has as its heart the module category Mod-R itself. Since then a lot of results devoted to the module theoretic characterisation of the hearts have been achieved, providing evidence of the usefulness of the t-structures in the representation theory of R. In 2020, following a research line promoted by many other authors, Saorin and Stovicek proved that the heart of any compactly generated t-structure is always a locally finitely presented Grothendieck categories (actually, this is true for any t-structure in a triangulated category with coproducts). Essentially, this means that the hearts of D(R) come equipped with a finiteness condition miming that one valid in Mod-R. In the present thesis we tackle the problem of characterising when the hearts of certain compactly generated t-structures of a commutative ring are even locally coherent. In this commutative context, after the works of Neeman and Alonso, Jeremias and Saorin, compactly generated t-structures turned out to be very interesting over a noetherian ring, for they are in bijection with the Thomason filtrations of the prime spectrum. In other words, they are classified by geometric objects, moreover their constituent subcategories have a precise cohomological description. However, if the ascending chain condition lacks, such classification is somehow partial, though provided by Hrbek. The crucial point is that the constituents of the t-structures have a different description w.r.t. that available in the noetherian setting, yet if one copies the latter for an arbitrary ring still obtains a t-structure, but it is not clear whether it must be compactly generated. Consequently, pursuing the study of the local coherence of the hearts given by a Thomason filtration, we ended by considering two t-structures. Our technique in order to face the lack of the ascending chain condition relies on a further approximation of the hearts by means of suitable torsion theories. The main results of the thesis are the following: we prove that for the so-called weakly bounded below Thomason filtrations the two t-structures have the same heart (therefore it is always locally finitely presented), and we show that they coincide if and only they are both compactly generated. Moreover, we achieve a complete characterisation of the local coherence for the hearts of the Thomason filtrations of finite length.

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Kurdthongmee, Wattanapong. "Coherence in CSG image generation." Thesis, Brunel University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.389260.

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Griffin, Robert A. "Coherent optical matched filtering for application in photonic code-division multiple access communication networks." Thesis, University of Kent, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240135.

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Barrow-Williams, Nick. "Proximity coherence for chip-multiprocessors." Thesis, University of Cambridge, 2011. https://www.repository.cam.ac.uk/handle/1810/241042.

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Many-core architectures provide an efficient way of harnessing the growing numbers of transistors available in modern fabrication processes; however, the parallel programs run on these platforms are increasingly limited by the energy and latency costs of communication. Existing designs provide a functional communication layer but do not necessarily implement the most efficient solution for chip-multiprocessors, placing limits on the performance of these complex systems. In an era of increasingly power limited silicon design, efficiency is now a primary concern that motivates designers to look again at the challenge of cache coherence. The first step in the design process is to analyse the communication behaviour of parallel benchmark suites such as Parsec and SPLASH-2. This thesis presents work detailing the sharing patterns observed when running the full benchmarks on a simulated 32-core x86 machine. The results reveal considerable locality of shared data accesses between threads with consecutive operating system assigned thread IDs. This pattern, although of little consequence in a multi-node system, corresponds to strong physical locality of shared data between adjacent cores on a chip-multiprocessor platform. Traditional cache coherence protocols, although often used in chip-multiprocessor designs, have been developed in the context of older multi-node systems. By redesign- ing coherence protocols to exploit new patterns such as the physical locality of shared data, improving the efficiency of communication, specifically in chip-multiprocessors, is possible. This thesis explores such a design - Proximity Coherence - a novel scheme in which L1 load misses are optimistically forwarded to nearby caches via new dedicated links rather than always being indirected via a directory structure.

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Carvalho, Ariane Cristina Ramello de. "Avaliação de coerência local e inferência por meio do Local Coherence Inference Test traduzido para a língua portuguesa." Universidade Presbiteriana Mackenzie, 2014. http://tede.mackenzie.br/jspui/handle/tede/1625.

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Made available in DSpace on 2016-03-15T19:40:15Z (GMT). No. of bitstreams: 1 Ariane Cristina Ramello de Carvalho.pdf: 542187 bytes, checksum: b329ccdc42149aed0374b8fe13c088c7 (MD5) Previous issue date: 2014-02-04
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Given the scarcity of well-validated instruments in Brazil capable of measuring local coherence ability in children-found the need to undertake a study to quantitatively reveal the performance of linguistic processing, in respect of local coherence in a population of normal children of the network mainstream education. The ability local coherence is essential for good reading comprehension and is characterized by the production of inferences between a sentence and the other from the reading of a text. In this study we used the Local Coherence Inference Test translated into Portuguese, which was applied in 50 normal children of elementary school, aged 9-13 years, with the objective of determining if there is an age effect on the performance of this group on the Local Coherence Inference Test translated into Portuguese. Results showed that children 9 years of age showed some reduction in their performance in the test, however, the discrepancy in the number of correct responses between the groups was not significant, which may indicate that children 9 years old can properly access the ability of local Coherence, but the more practice reading, knowledge about the theme and most relevant topic lexical repertoire child will be able to establish an more appropriate inference from a sentence and another.
Avaliação de coerência local e inferência por meio do Local Coherence Inference Test traduzido para a língua portuguesa Em face da escassez de instrumentos devidamente validados no Brasil capazes de medir habilidade de coerência local em crianças, constatou-se a necessidade de realizar um estudo que revele quantitativamente o desempenho do processamento linguístico, no tocante a coerência local numa população de crianças normais da rede de ensino regular. A habilidade coerência local é imprescindível para uma boa compreensão textual e é caracterizada pela produção de inferências entre uma sentença e outra à partir da leitura de um texto. Neste estudo utilizou-se o Local Coherence Inference Test traduzido para a língua portuguesa, o qual foi aplicado em 50 crianças normais, do Ensino Fundamental, na faixa etária de 9 a 13 anos, com o objetivo de verificar se há efeito de idade no desempenho deste grupo no Local Coherence Inference Test traduzido para a língua portuguesa. Os resultados mostraram que as crianças de 9 anos de idade apresentaram sensível redução no desempenho do teste, porém, a discrepância do número de acertos entre os grupos etários não foi significativa, o que pode indicar que crianças com 9 anos de idade já conseguem acessar adequadamente a habilidade de coerência local, porém, quanto mais treino de leitura, conhecimento sobre o tema lido e maior o repertório lexical mais competente a criança será em estabelecer uma inferência entre uma sentença e outra.

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Shi, Xinxiang. "Diplomatic immunities ratione materiae under the Vienna Convention on Diplomatic Relations : towards a coherent interpretation." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/33152.

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Rules of diplomatic immunity, which nowadays are enshrined in the Vienna Convention on Diplomatic Relations, play an important role in interstate diplomacy because they ensure the efficient performance of diplomatic functions. This thesis investigates a particular form of diplomatic immunity - diplomatic immunity ratione materiae. Unlike diplomatic immunity ratione personae, which pertains to the personal status of a diplomatic agent, diplomatic immunity ratione materiae depends in essence on the official nature of a particular act In practice, however, the determination of diplomatic immunity ratione materiae may meet with many conceptual and practical difficulties. For one, it is not always easy to distinguish the official acts of a diplomatic agent, who represents the sending State in the receiving State, from his or her private acts. In case of disagreement between the two States, questions may also arise as to who has the authority to make a final determination. The Vienna Convention does not offer much guidance on these issues; on the contrary, the Convention complicates them by employing, without adequate explanation, distinct formulas for different kinds of diplomatic immunity ratione materiae. This thesis examines these formulas in detail. On a general level, it is submitted that diplomatic immunity ratione materiae for certain types of activity constitutes not only a procedural bar to court proceedings but also a substantive exemption of individual responsibility. More specifically, it is argued that each formula must be understood in the light of the rationale behind immunity, the type of immunity concerned, and the specific functions or duties performed. In case of controversy, weight should be given to the opinion of the sending State, although the authority to make a decision lies ultimately with the court of the receiving State.

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Lopes, Kim Samejima Mascarenhas. "Directed wavelet covariance for locally stationary processes." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/45/45133/tde-14032018-174950/.

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The main goal of this study is to propose a methodology that measures directed relations between locally stationary processes. Unlike stationary processes, locally stationary processes may present sudden pattern changes and have local characteristics in specific intervals. This behavior causes instability in measures based on Fourier transforms. The relevance of this study relies on considering these processes and propose robust methodologies that are not affected by outliers, sudden pattern changes or local behavior. We start reviewing the Partial Directed Coherence (PDC) and the Wavelet Coherence. PDC measures the directed relation between components of a multivariate stationary Vector Autoregressive (VAR) model in the frequency domain, while Wavelet Coherence is based on complex wavelets decomposition. We then propose a causal wavelet decomposition of the covariance structure for bivariate locally stationary processes: the Directed Wavelet Covariance (DWC). Compared to Fourier-based quantities, wavelet-based estimators are more appropriate for non-stationary processes and processes with local patterns, outliers and rapid regime changes like in EEG experiments with the introduction of stimuli. We then propose its estimators and calculate its expectation and analyze its variance. Next we propose a decomposition for the variance of multivariate processes with more than two components: the Partial Directed Wavelet Covariance (pDWC). Considering a N-variate locally stationary process, the pDWC calculates the Directed Wavelet Covariance of X_1(t) with X_2(t) eliminating the effect of the other components X_3(t), ... ,X_N(t). We propose two approaches to this situation. First we filter the multivariate process to remove all the exogenous influences and then we calculate the directed relation between the components. In the second case, as in Partial Directed Coherence, we consider the multivariate process as a time-varying Vector Autoregressive Model (tv-VAR) and use its coefficients in the decomposition of the covariance function to isolate the effects of the other components. We also compare results of the PDC, Wavelet Coherence and Directed Wavelet Covariance with simulated data. Finally, we present an application of the proposed Directed Wavelet Covariance and Partial Directed Wavelet Covariance on EEG data. Simulation results show that the proposed measures capture the simulated relations. The pDWC with linear filter has shown more stable estimations than the proposed pDWC considering the tv-VAR. Future studies will discuss the DWC\'s and pDWC\'s asymptotic distributions and significance tests. The proposed Directed Wavelet Covariance decomposition is a different approach to deal with non-stationary processes in the context of causality. The use of wavelets is a gain and adds to the number of studies that can be addressed when Fourier transform does not apply. The pDWC is an alternative for multivariate processes and it removes linear influences from observed external components.
O objetivo deste trabalho é propor uma metodologia para mensurar o impacto direcionado entre processos localmente estacionários. Diferente de processos estacionários, processos localmente estacionários podem apresentar mudanças bruscas e características específicas em determinados intervalos. Tal comportamento pode causar instabilidade em medidas baseadas na transformada de Fourier. A importância deste estudo se dá em englobar processos com tais características, propondo metodologias robustas que não são afetadas pela existência de mudanças bruscas, pontos discrepantes e comportamentos locais. Inicialmente apresentamos conceitos já existentes na literatura, como a Coerência Parcial Direcionada (PDC) e a Coerência de Ondaletas. A PDC mede o impacto direcionado entre componentes de um modelo vetorial autoregressivo (VAR) no domínio da frequência. A coerência de ondaletas é baseada em transformadas complexas de ondaletas. Propomos então uma decomposição no domínio de ondaletas para a estrutura de covariância de processos bivariados localmente estacionários: a Covariância Direcionada de Ondaletas (DWC). Em comparação com as quantidades baseadas na tranformada Fourier, os estimadores baseados em ondaletas são mais apropriados para processos não estacionários com padrões locais, pontos discrepantes ou mudanças rápidas de regime, como em experimentos de eletroencefalograma (EEG) com a introdução de estímulo. Ainda, propomos um estimador para a DWC, calculamos a esperança deste estimador e avaliamos sua variância. Em seguida, propomos uma quantidade análoga à DWC para processos multivariados com mais de duas componentes: a Covariância Parcial Direcionada de Ondaletas (pDWC). Considerando um processo N-variado localmente estacionário, a pDWC calcula a Covariância Direcionada de Ondaletas entre X_1(t) e X_2(t) eliminando o efeito das outras componentes X_3(t), ... , X_N(t). Propomos duas abordagens para a pDWC: na primeira, a pDWC é calculada após a aplicação de um filtro linear que remove o efeito das variáveis exógenas. No segundo caso, a exemplo da Coerência Parcial Direcionada, consideramos o processo multivariado como um Modelo Autoregressivo de Vetorial variante no tempo (tv-VAR) e usamos seus coeficientes na decomposição da função de covariância para isolar os efeitos das demais componentes. Também comparamos os resultados da PDC, Coerência de Ondaletas e Covariância Direcionada de Ondaletas com dados simulados. Por fim, apresentamos uma aplicação da DWC e da pDWC em dados de EEG. Identificamos nas simulações que tanto as medidas já existentes na literatura quanto as quantidades propostas identificaram as relações simuladas. A pDWC proposta com filtros lineares apresentou estimações mais estáveis do que a pDWC considerando os modelos tv-VAR. Estudos futuros discutirão as propriedades assintóticas e testes de significância da DWC e pDWC.

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O'Toole, Barbara Maria. "Differentiation and coherence in urban policy : the impact of locality on Urban Development Corporations." Thesis, University of Newcastle Upon Tyne, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241556.

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Mesgar, Mohsen [Verfasser], and Michael [Akademischer Betreuer] Strube. "Graph-based Patterns for Local Coherence Modeling / Mohsen Mesgar ; Betreuer: Michael Strube." Heidelberg : Universitätsbibliothek Heidelberg, 2020. http://d-nb.info/1209273721/34.

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Magnuson, Matthew Evan. "Effects of severing the corpus callosum on coherent electrical and hemodynamic interhemispheric oscillations intrinsic to functional brain networks." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/47681.

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Large scale functional brain networks, defined by synchronized spontaneous oscillations between spatially distinct anatomical regions, are essential to brain function and have been implicated in disease states, cognitive capacity, and many sensing and motor processes. In this work, we sever the corpus callosum in the rodent model to determine if structural connectivity (specifically the primary interhemispheric pathway) organizes and influences bilateral functional connectivity and brain-wide spatiotemporal dynamic activity patterns. Prior to the callosotomy work, resting state brain networks were evaluated using blood oxygen level dependent (BOLD) and cerebral blood volume (CBV) magnetic resonance imaging contrast mechanisms, and revealed that BOLD and CBV provide highly similar spatial maps of functional connectivity; however, the amplitude of BOLD connectivity was generally stronger. The effects of extended anesthetic durations on functional connectivity were also evaluated revealing extended isoflurane anesthetic periods prior to the switch to dexmedetomidine attenuates functional activity for a longer duration as compared to a shorter isoflurane paradigm. We also observed a secondary significant evolution of functional metrics occurring during long durations of dexmedetomidine use under the currently accepted and refined dexmedetomidine sedation paradigm. Taking these previous findings into account, we moved forward with the callosotomy study. Functional network integrity was evaluated in sham and full callosotomy groups using BOLD and electrophysiology. Functional connectivity analysis indicated a similar significant reduction in bilateral connectivity in the full callosotomy group as compared to the sham group across both recording modalities. Spatiotemporal dynamic analysis revealed bilaterally symmetric propagating waves of activity in the sham data, but none were present in the full callosotomy data; however, the emergence of unilateral spatiotemporal patterns became prominent following the callosotomy. This finding suggests that the corpus callosum could be largely responsible for maintaining bilateral network integrity, but non-bilaterally symmetric propagating waves occur in the absence of the corpus callosum, suggesting a possible subcortical driver of the dynamic cascading event. This work represents a robust finding indicating the corpus callosum's influence on maintaining integrity in bilateral functional networks.

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Книги з теми "Locally coherent"

S, Forcesi, ed. Ultra-wideband coherent optical LANs. Berlin: Springer-Verlag, 1993.

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Hanzo, Lajos. MIMO-OFDM for LTE, WIFI, and WIMAX: Coherent versus non-coherent and cooperative turbo-transceivers. Chichester, West Sussex, U.K: Wiley, 2010.

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Xiong, Fuqin. The effect of Doppler frequency shift, frequency offset of the local oscillators, and phase noise on the performance of coherent OFDM receivers. [Cleveland, Ohio]: National Aeronautics and Space Administration, Glenn Research Center, 2001.

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Clay Mathematics Institute Workshop on Moduli Spaces of Vector Bundles, with a View toward Coherent Sheaves (2006 Cambridge, Mass.). Grassmannians, moduli spaces, and vector bundles: Clay Mathematics Institute Workshop on Moduli Spaces of Vector Bundles, with a View towards Coherent Sheaves, October 6-11, 2006, Cambridge, Massachusetts. Edited by Ellwood D. (David) 1966- and Previato Emma. Providence, RI: American Mathematical Society, 2011.

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Ballvé, Teo. The Frontier Effect. Cornell University Press, 2020. http://dx.doi.org/10.7591/cornell/9781501747533.001.0001.

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This book challenges the notion that in Urabá, Colombia, the cause of the region's violent history and unruly contemporary condition is the absence of the state. Although the book takes this locally oft-repeated claim seriously, it demonstrates that Urabá is more than a case of Hobbesian political disorder. Through this exploration of war, paramilitary organizations, grassroots support and resistance, and drug-related violence, the book argues that Urabá, rather than existing in statelessness, has actually been an intense and persistent site of state-building projects. Indeed, these projects have thrust together an unlikely gathering of guerilla groups, drug-trafficking paramilitaries, military strategists, technocratic planners, local politicians, and development experts each seeking to give concrete coherence to the inherently unwieldy abstraction of “the state” in a space in which it supposedly does not exist. By untangling this odd mix, the book reveals how Colombia's violent conflicts have produced surprisingly coherent and resilient, if not at all benevolent, regimes of rule.

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Sen, Rumela. Farewell to Arms. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780197529867.001.0001.

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How do rebels give up arms and return to the political system that they once sought to overthrow? Policymakers often focus on incentives like cash and jobs to lure rebels away from extremism. From the rebels’ perspective, however, physical safety is more important than these livelihood options. Rebels quit extremist groups only when they know that they can disarm without getting killed in the process. This book shows that retiring Maoist rebels in India believe that they could lose their lives after they disarm, targeted either by enemies they made during their insurgent career or by their former comrades. However, the Indian state would lose nothing if it failed to keep its side of the bargain and protect disarmed rebels. This creates a problem of credible commitment, which, in the absence of institutional mechanisms, is addressed locally by informal exit networks that emerge from grassroots civic associations in the gray zones of state-insurgency interface. Maoist retirement is high in South India and low in the North due to emergence of two distinct types of exit networks in these two conflict locations. By showing that the type of exit network depends on local social bases of an insurgency and the ties of an insurgent organization to society, this book brings civil society into the study of insurgency in a theoretically coherent way.

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Bateman, David A., Ira Katznelson, and John S. Lapinski. Southern Nation. Princeton University Press, 2018. http://dx.doi.org/10.23943/princeton/9780691126494.001.0001.

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No question has loomed larger in the American experience than the role of the South. This book examines how southern members of Congress shaped national public policy and American institutions from Reconstruction to the New Deal—and along the way remade the region and the nation in their own image. The central paradox of southern politics was how such a highly diverse region could be transformed into a coherent and unified bloc. This book shows how this unlikely transformation occurred in Congress, the institutional site where the South's representatives forged a new relationship with the rest of the nation. Drawing on an innovative theory of southern lawmaking, in-depth analyses of key historical sources, and congressional data, the book traces how southern legislators confronted the dilemma of needing federal investment while opposing interference with the South's racial hierarchy, a problem they navigated with mixed results before choosing to prioritize white supremacy above all else. The book reveals how southern members of Congress gradually won for themselves an unparalleled role in policymaking, and left all southerners—whites and blacks—disadvantaged to this day. At first, the successful defense of the South's capacity to govern race relations left southern political leaders locally empowered but marginalized nationally. With changing rules in Congress, however, southern representatives soon became strategically positioned to profoundly influence national affairs.

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Grothendieck, A. Cohomologie Locale Des Faisceaux Coherents (Sga 2): Seminaire De Geometrie Algebrique Du Bois Marie 1962 (Documents Mathematiques). Societe Mathematique de France, 2005.

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Raffe, Alasdair. The Revolution in the Localities. Edinburgh University Press, 2018. http://dx.doi.org/10.3366/edinburgh/9781474427579.003.0006.

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This chapter reconstructs the events of the revolution in Scotland, from the collapse of James VII’s authority in December 1688 to the meeting of the convention of estates in March 1689. Focusing particularly on Scottish localities, it argues that the revolution consisted of a patchwork of local crises and contests for office, but lacked strong and coherent national leadership. Nevertheless, four types of revolutionary activity can be distinguished: violent crowd demonstrations; local elections in reaction to James’s interventions in the royal burghs; the reading of Prince William of Orange’s Scottish Declaration of Reasons for his invasion and addressing the prince; participation in elections to the convention of estates.

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Частини книг з теми "Locally coherent"

Scognamiglio, Salvatore. "A Multi-population Locally-Coherent Mortality Model." In Mathematical and Statistical Methods for Actuarial Sciences and Finance, 423–28. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-99638-3_68.

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Yin, Xiaoxia, Brian W. H. Ng, and Derek Abbott. "Wavelet-Based Terahertz Coherent Local Tomography." In Terahertz Imaging for Biomedical Applications, 201–20. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-1821-4_12.

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Napoli, A., A. Messina, and G. Compagno. "From local to non local entanglement." In Coherence and Quantum Optics VIII, 641–42. Boston, MA: Springer US, 2003. http://dx.doi.org/10.1007/978-1-4419-8907-9_207.

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Lizier, Joseph T. "Coherent Information Structure in Complex Computation." In The Local Information Dynamics of Distributed Computation in Complex Systems, 163–75. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-32952-4_7.

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Bennett, Andrew J., and Paul H. J. Kelly. "Locality and false sharing in coherent-cache parallel graph reduction." In Lecture Notes in Computer Science, 329–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/3-540-56891-3_26.

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Lumbelli, Lucia, and Gisella Paoletti. "Monitoring Local Coherence Through Bridging Integration." In Studies In Writing, 197–208. Dordrecht: Springer Netherlands, 2005. http://dx.doi.org/10.1007/978-1-4020-2739-0_15.

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Vepakomma, Udayalakshmi, Denis Cormier, Linnea Hansson, and Bruce Talbot. "Remote Sensing at Local Scales for Operational Forestry." In Advances in Global Change Research, 657–82. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-15988-6_27.

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AbstractThe success of current and future forest management, particularly when dealing with triggered changes stemming from extreme climate change–induced events, will require prompt, timely, and reliable information obtained at local scales. Remote sensing platforms and sensors have been evolving, emerging, and converging with enabling technologies that can potentially have an enormous impact in providing reliable decision support and making forest operations more coherent with climate change mitigation and adaptation objectives.

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Bowden, Charles M., Aaron S. Manka, Jonathan P. Dowling, and Michael Fleischhauer. "Local Field Effects in Nonlinear and Quantum Optics." In Coherence and Quantum Optics VII, 271–80. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4757-9742-8_33.

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Laptev, Ivan, and Tony Lindeberg. "Local Descriptors for Spatio-temporal Recognition." In Spatial Coherence for Visual Motion Analysis, 91–103. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11676959_8.

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Lee, C. T. "Classical Entropy of a Coherent Spin State: A Local Minimum." In Maximum-Entropy and Bayesian Methods in Science and Engineering, 111–19. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-010-9054-4_8.

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Тези доповідей конференцій з теми "Locally coherent"

Althaus, Ernst, Nikiforos Karamanis, and Alexander Koller. "Computing locally coherent discourses." In the 42nd Annual Meeting. Morristown, NJ, USA: Association for Computational Linguistics, 2004. http://dx.doi.org/10.3115/1218955.1219006.

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Garabito, German, and Paul Stoffa. "Kirchhoff prestack depth migration of locally coherent events." In 12th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 15-18 August 2011. Society of Exploration Geophysicists and Brazilian Geophysical Society, 2011. http://dx.doi.org/10.1190/sbgf2011-218.

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Gurov, I., and M. Volkov. "Evaluation of complicated fringe patterns by 2D locally adaptive filtering." In Saratov Fall Meeting 2004: Coherent Optics of Ordered and Random Media V, edited by Dmitry A. Zimnyakov. SPIE, 2005. http://dx.doi.org/10.1117/12.636873.

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Baykulov, M., St Dümmong, and D. Gajewski. "An imaging work flow using locally coherent events - A CRS based approach." In 71st EAGE Conference and Exhibition - Workshops and Fieldtrips. European Association of Geoscientists & Engineers, 2009. http://dx.doi.org/10.3997/2214-4609.201404970.

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Burnett, N. H., F. Brunel, P. B. Corkum, G. D. Enright, C. E. Capjack, and R. Rankin. "Recombination Lasers Pumped by Multi-Photon Ionization." In Short Wavelength Coherent Radiation: Generation and Applications. Washington, D.C.: Optica Publishing Group, 1991. http://dx.doi.org/10.1364/swcr.1991.tuc3.

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Recent advances in ultra-short pulse visible and uv laser technology make it practical for the first time to consider the production of multiply ionized laboratory plasmas in which ionization is moderated by an external optical field rather than by electron collisions. Such plasmas will be remarkable for the high degree of disequilibrium that can be achieved between the distribution of ionization and the electron energy distribution. In particular it should be possible to produce plasmas in which the electron energy distribution is much cooler (either locally or over a distance comparable to an electron mean free path) than the ionization temperature. This leads naturally to consideration of the use of these plasmas for short wavelength recombination lasers.

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Vieux, Gregory, Silvia Cipiccia, Gregor H. Welsh, Sam R. Yoffe, Felix Gaertner, Matthew P. Tooley, Bernhard Ersfeld, et al. "Enhanced scattering from a locally produced transient plasma grating in a plasma-based amplifier." In Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources IV, edited by Dino A. Jaroszynski and MinSup Hur. SPIE, 2021. http://dx.doi.org/10.1117/12.2595297.

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Kunisch, J., and J. Pamp. "Locally Coherent Ultra-Wideband Radio Channel Model for Sensor Networks in Industrial Environment." In 2006 IEEE International Conference on Ultra-Wideband. IEEE, 2006. http://dx.doi.org/10.1109/icu.2006.281577.

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Lambaré, G. "The use of locally coherent events in seismic processing: a state of the art." In 71st EAGE Conference and Exhibition - Workshops and Fieldtrips. European Association of Geoscientists & Engineers, 2009. http://dx.doi.org/10.3997/2214-4609.201404966.

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Chiu, Stephen K., and Patrick Butler. "2D/3D coherent noise attenuation by locally adaptive modeling and removal on prestack data." In SEG Technical Program Expanded Abstracts 1997. Society of Exploration Geophysicists, 1997. http://dx.doi.org/10.1190/1.1885643.

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Lambaré, Gilles. "The use of locally coherent events in depth processing: A state of the art." In SEG Technical Program Expanded Abstracts 2002. Society of Exploration Geophysicists, 2002. http://dx.doi.org/10.1190/1.1817163.

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Звіти організацій з теми "Locally coherent"

Hwa, Yue-Yi, Sharon Kanthy Lumbanraja, Usha Adelina Riyanto, and Dewi Susanti. The Role of Coherence in Strengthening CommunityAccountability for Remote Schools in Indonesia. Research on Improving Systems of Education (RISE), February 2022. http://dx.doi.org/10.35489/bsg-rise-wp_2022/090.

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Incoherence in accountability relationships can hamper the quality of education. Such incoherence can be a particular challenge in resource-constrained, remote villages where teachers tend to have higher educational capital and social status than the parents and communities that they serve. We analyze quantitative and qualitative data from a randomized controlled trial of a social accountability mechanism (SAM) for schools in remote Indonesian villages. The intervention had three treatment arms, all of which included the SAM, which engaged village-level stakeholders in a consensus-building process that led to joint service agreements for supporting the learning process. Prior analyses have found that all three treatment arms significantly improved student learning, but the treatment arm combining the SAM with performance pay based on camera-monitored teacher attendance led to much larger gains than the SAM-only treatment or the treatment arm combining the SAM with teacher performance pay based on a community-evaluated scorecard. Drawing on a range of quantitative data sources across all treatment schools (process monitoring, survey, and service agreement indicators) and qualitative data from nine case study schools (interviews and focus group discussions), we show firstly that the student learning gains across all three treatment arms were accompanied by increases in the coherence of the accountability relationships between village-level stakeholders, and in the degree to which these relationships were oriented toward the purpose of cultivating learning. We further show that the treatment combining SAM with camera-monitored teacher performance pay led to greater improvements in the coherence of accountability relationships than the other treatment arms, because the cameras improved both the technical capacity and the social legitimacy of community members to hold teachers accountable. This coherence-focused, relational explanation for the relative effectiveness of the treatment arms has more explanatory power than alternative explanations that focus narrowly on information quality or incentive structure. Our analysis reinforces arguments for ensuring that accountability structures are coherent with the local context, including local social structures and power dynamics.

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Grosz, Barbara J., Aravind K. Joshi, and Scott Weinstein. Centering: A Framework for Modelling the Local Coherence of Discourse,. Fort Belvoir, VA: Defense Technical Information Center, January 1995. http://dx.doi.org/10.21236/ada324949.

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Olsen, Laurie, Elvira Armas, and Magaly Lavadenz. A review of year 2 LCAPs: A weak response to English Learners. Center for Equity for English Learners, 2016. http://dx.doi.org/10.15365/ceel.lcap2016.1.

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A panel of 32 reviewers analyzed the Local Control and Accountability Plans (LCAPs) of same sample of 29 districts for the second year of implementation of the 2013 California Local Control Funding Formula (LCFF). Using the same four questions as the Year 1 report, the Year 2 analysis also addresses the key differences between first and second-year LCAPs. Key findings from the Year 2 LCAPs review include: (1) similarly weak responses to the needs of ELs by LEAs in Year 2; (2) some improvement in clarity about services provided to ELs in some areas, though most evidence was weak; (3) minimal attention to the new English Language Development Standards; (4) minimal investment in teacher capacity building to address EL needs; (5) lack of attention to coherent programs, services and supports for ELs and failure to address issues of program and curriculum access; (6) weak engagement of ELs’ parents in LCAP process and content of LCAP plans; (7) poor employment of EL data to inform LCAP goals and weak use of EL indicators as an LCAP accountability component; (8) lack of specificity in describing district services and site allocations for supplemental and concentration funding; and (9) difficulty identifying the coherence of responses of EL needs in year 2 LCAPs. Overall, the analysis of the 29 LCAPs continue to signal a weak response to EL needs. The authors reassert the urgency of the recommendations in the Year 1 report, offer additional specific recommendations for the state, county offices of education, and districts, and call upon the state to reaffirm the equity commitment in the LCFF design.

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Armas, Elvira G., Magaly Lavadenz, Natividad Rozsa, and Gisela O’Brien. English Learner Master Plan Playbook: Developing Equitable Local Policies for Multilingual and English Learners Students. Center for Equity for English Learners, 2021. http://dx.doi.org/10.15365/ceel.elmasterplan2021.

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The education of English Learners (ELs) is informed by federal, state, and local policies, research and practice. The EL Master Plan is the Local Education Agency’s (LEA) policy document that has the potential to positively impact the educational programs, practices and experiences of ELs. Aligned and informed by California’s English Learner Roadmap policy as well as federal requirements, this playbook is a guide for educational partners to use to achieve four goals in their LEAs EL Master Plans: (1) equitable, coherent, and sustainable systems; (2) equity-driven processes to deliver research-based programs and practices; (3) effective family-community engagement; and (4) accountability models that ensure EL students’ success. The authors include a variety of tools and processes for LEA’s to use in the development of their EL Master Plan.

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Lavadenz, Magaly. Masking the Focus on English Learners: The Consequences of California’s Accountability System Dashboard Results on Year 4 Local Control and Accountability Plans (LCAPs). Center for Equity for English Learners, 2018. http://dx.doi.org/10.15365/ceel.lcap2018.1.

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California’s Local Control Funding Formula (LCFF), signed into law in 2013, centers equity as a key to increased and improved services for three targeted student subgroups, including English Learners (ELs), low-income students, and foster youth. As a component of LCFF, districts develop Local Control and Accountability Plans (LCAPs) to specify their goals and strategies for using LCFF funds for equity and continuous improvement purposes. The California Model Five by Five Grid Placement Report (Spring 2017 Dashboard) included the Five by Five Placement Grid, a key function of which is to identify the needs of diverse ELs. The Dashboard and the LCAPs are two policy mechanisms with great promise in combining school finance and accountability reform to promote equity and coherent state-wide. In this report, Lavadenz and colleagues review the EL policy context and examine the connection between the two contemporary policy mechanisms in California, namely the Year 4 LCAP and the California Department of Education’s Accountability Model (Spring 2017 Dashboard). The authors use a sample of 26 California school districts with high numbers/percentages of ELs and conclude that California’s current accountability system diminishes the urgency to respond to educational needs of the English Learner subgroup and undermines the equity intent of the LCFF. Few promising practices and assets-based approaches were identified in the LCAPs, and there is minimal mention of metrics focused on EL outcomes. The authors provide recommendations at state, county office of education and district levels.

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London, Jonathan. Outlier Vietnam and the Problem of Embeddedness: Contributions to the Political Economy of Learning. Research on Improving Systems of Education (RISE), February 2021. http://dx.doi.org/10.35489/bsg-rise-wp_2021/062.

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Recent literature on the political economy of education highlights the role of political settlements, political commitments, and features of public governance in shaping education systems’ development and performance around learning. Vietnam’s experiences provide fertile ground for the critique and further development of this literature including, especially, its efforts to understand how features of accountability relations shape education systems’ performance across time and place. Globally, Vietnam is a contemporary outlier in education, having achieved rapid gains in enrolment and strong learning outcomes at relatively low levels of income. This paper proposes that beyond such felicitous conditions as economic growth and social historical and cultural elements that valorize education, Vietnam’s distinctive combination of Leninist political commitments to education and high levels of societal engagement in the education system often works to enhance accountability within the system in ways that contribute to the system’s coherence around learning; reflecting the sense and reality that Vietnam is a country in which education is a first national priority. Importantly, these alleged elements exist alongside other features that significantly undermine the system’s coherence and performance around learning. These include, among others, the system’s incoherent patterns of decentralization, the commercialization and commodification of schooling and learning, and corresponding patterns of systemic inequality. Taken together, these features of education in Vietnam underscore how the coherence of accountability relations that shape learning outcomes are contingent on the manner in which national and local systems are embedded within their broader social environments while also raising intriguing ideas for efforts to understand the conditions under which education systems’ performance with respect to learning can be promoted, supported, and sustained.

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Gal'perin, Yu M., V. G. Karpov, and Володимир Миколайович Соловйов. Density of vibrational states in glasses. Springer, November 1988. http://dx.doi.org/10.31812/0564/1005.

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A theory of the vibrational spectra of glasses, based on allowance for the statistical fluctuations of the local elastic constants, is proposed. The existence is established of two characteristic energies h, and h, , dividing the spectrum into regions of qualitatively different behavior of the density of states n (h). At low frequencices w 4 w, the increase of the density of states is determined by the additive contributions of phonons and mutually noninteracting quasilocal vibrations in random soft atomic potentials in the glass. In the intermediate region w , 5 w 5 w, the quasilocal vibrations interact strongly with phonons, and this makes their contributions superadditive. For w > w, the growth of n (h) slows down. As a result, n (h) increases at first more rapidly and then more slowly than the Debye density of states. An analytical expression for n (h) is obtained in the T-matrix formalism in the region w <a,, including the region of strong scattering. A numerical calculation of n (h) is performed in the coherent-potential approximation. The theory predicts qualitatively universal behavior of n (h) in different glasses.

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Harris, Jody, Sarah Gibbons, O’Brien Kaaba, Tabitha Hrynick, and Ruth Stirton. A ‘Right to Nutrition’ in Zambia: Linking Rhetoric, Law and Practice. Institute of Development Studies (IDS), August 2021. http://dx.doi.org/10.19088/ids.2021.051.

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Zambians in all walks of life are affected by malnutrition, and working through human rights is one key way to address this injustice. Based on research aiming to understand how a ‘right to nutrition’ is perceived by different actors globally and in Zambia, this brief presents a clear framework for a rights-based approach to nutrition in Zambia. This framework identifies rhetorical, legal and practical functions of human rights, and offers a way to think through clearly how different actors might work on the different aspects of rights. Addressing these three aspects of a right to nutrition all together – instead of by very separate constituencies as happens now – is fundamental to a coherent rights-based approach to nutrition. This brief outlines which actors need to come together – from law and policy, activism and communities, across global, national and local levels – and suggests how to start. It lays out the Zambian policy, legal and practical environment as it stands, and suggests actions to move forward in each of these areas in ways that are consistent with the different aspects of rights. Through these steps, Zambia can become known as a hub of action on a right to nutrition, to join with others in using human rights to address the injustice of malnutrition.

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Quak, Evert-jan. Lessons Learned from Community-based Management of Acute Malnutrition (CMAM) Programmes that Operate in Fragile or Conflict Affected Settings. Institute of Development Studies (IDS), September 2021. http://dx.doi.org/10.19088/k4d.2021.133.

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This rapid review synthesises the literature on how community-based management of acute malnutrition (CMAM) programmes could be adapted in settings of conflict and fragility. It identifies multiple factors affecting the quality and effectiveness of CMAM services including the health system, community engagement and linkages with other programmes, including education, sanitation, and early childhood development. Family MUAC (Mid-Upper Arm Circumference) is a useful tool to increase community participation and detect early cases of moderate acute malnutrition (MAM) and severe acute malnutrition (SAM) more effectively and less likely to require inpatient care. The literature does not say a lot about m-Health solutions (using mobile devises and applications) in data collection and surveillance systems. Many of the above-mentioned issues are relevant for CMAM programmes in settings of non-emergency, emergency, conflict and fragility. However, there are special circumstance in conflict and fragile settings that need adaptation and simplification of the standard protocols. Because of a broken or partly broken health system in settings of conflict and fragility, local governments are not able to fund access to adequate inpatient and outpatient treatment centres. NGOs and humanitarian agencies are often able to set up stand-alone outpatient therapeutic programmes or mobile centres in the most affected regions. The training of community health volunteers (CHVs) is important and implementing Family MUAC. Importantly, research shows that: Low literacy of CHVs is not a problem to achieve good nutritional outcomes as long as protocols are simplified. Combined/simplified protocols are not inferior to standard protocols. However, due to complexities and low funding, treatment is focused on SAM and availability for children with MAM is far less prioritised, until they deteriorate to SAM. There is widespread confusion about combined/simplified protocol terminology and content, because there is no coherence at the global level.

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Dzebo, Adis, and Kevin M. Adams. The coffee supply chain illustrates transboundary climate risks: Insights on governance pathways. Stockholm Environment Institute, April 2022. http://dx.doi.org/10.51414/sei2022.002.

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The interconnections between countries in a globalizing world continue to deepen and are central to the modern international economy. Yet, governance efforts to build resilience to the adverse risks and impacts of climate change are highly fragmented and have not sufficiently focused on these international dimensions. Relationships between people, ecosystems and economies across borders change the scope and nature of the climate adaptation challenge and generate climate risks that are transboundary (Challinor et al., 2017). Climate impacts in one country can create risks and opportunities – and therefore may require adaptation – in other countries, due to cross-border connectivity within regions and globally (Hedlund et al., 2018). These Transboundary Climate Risks (TCRs) may develop in one location remote from the location of their origin. This dynamic necessitates examining the governance structures for managing climate change adaptation. For example, with regard to trade and international supply chains, climate change impacts in one location can disrupt local economies and vulnerable people’s livelihoods, while also affecting the price, quality and availability of goods and services on international markets (Benzie et al., 2018). Coffee is one of the most traded commodities in the world with an immensely globalized supply chain. The global coffee sector involves more than 100 million people in over 80 countries. Coffee production and the livelihoods of smallholder coffee farmers around the world are at risk due to climate change, threatening to disrupt one of the world’s largest agricultural supply chains. The coffee supply chain represents an important arena for public and private actors to negotiate how resource flows should be governed and climate risks should be managed. Currently, neither governments nor private sector actors are sufficiently addressing TCRs (Benzie & Harris, 2020) and no clear mandates exist for actors to take ownership of this issue. Furthermore, the United Nations Framework Convention on Climate Change (UNFCCC), the main body for climate change policy and governance, does not provide any coherent recommendations on how to manage TCRs. This governance gap raises questions about what methods are likely to effectively reduce climate risk and be taken seriously by coffee market stakeholders. This policy brief explores different ways to govern TCRs, and how public and private actors view their effectiveness and legitimacy. Focusing on the Brazilian-German coffee supply chain, the brief presents a deductive framework of five governance pathways through which TCRs could be managed. It is based on 41 semi-structured interviews with 65 Brazilian and German public and private experts, including roasters, traders, cooperatives, associations and certification schemes, as well as government ministries, international development agencies, international organizations and civil society representatives.

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