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This work describes the design process of a single-pole double-throw (SPDT) microwave switch operating at Ka-band. It is tailored to a tunable reflective termination design that can be used in tunable power amplifier configurations. A high electron mobility transistor and a resonating network are employed in shunt configuration to enhance the performance in the output port’s active and inactive conditions. The small and large signal measurements showcase a 2 GHz bandwidth with an insertion loss and isolation better than −1.8 dB and −25 dB, respectively, and handling power levels of up to 3 W at 30.5 GHz. The load-pull measurements across the entire Smith chart offer comprehensive insights into the behavior of the SPDT when operating with complex and reactive loads, fulfilling the purpose of tunable reactive termination.
Jiří Adámek, Czech Technical University in Prague,Stefan Milius, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany,Lawrence S. Moss, Indiana University, Bloomington
This chapter provides examples of the central concepts of the book: initial algebras and terminal coalgebras. These are mainly for polynomial endofunctors on the category of sets, but also for such functors on sorted sets, nominal sets, and presheaves. We discuss connections to induction and recursion and to their duals, coinduction and corecursion, and also to bisimulation. We present Lambek’s Lemma, a result used throughout the book.
The eighth chapter pursues the urge among artists to imaginatively reconstruct the original structures that became ruins, and not just of individual buildings but of the whole ancient city. Reconstructions are to be seen in two-dimensional ‘flat’ art (paintings, drawings, watercolours, engravings, panoramas) and in three-dimensional architectural models. These occasionally inspired the erection of modern buildings which realised the reconstructed image. Modern reconstructions employ digital and computer-generated imagery. In the twentieth century three-dimensional models of ancient Rome were constructed, and imaginative visions of Rome were devised for cinema and television.
From the Cold War era to the current century, the United States has wielded substantial authority in imposing sanctions. This book delves into the intricate and multifaceted landscape of US economic and financial sanctions, unravelling their historical development, legal foundations, and geopolitical motivations. Case studies on five of the most-sanctioned countries in the world – Russia, Iran, Iraq, Cuba, and Venezuela—provide a deeper understanding of how the sanctioning measures allow the US to extend its reach beyond its national boundaries through extraterritorial laws, sophisticated enforcement mechanisms, and the pervasive dollar-denominated global economic structure. Meticulous and nuanced, this book is a go-to resource for understanding sanction regimes from both multilateral and unilateral perspective and the relevant international laws and jurisprudence.
Frame Semantics is foundational to Construction Grammar in both chronological and conceptual terms. Originally developed by Charles J. Fillmore in the late 1970s to 1980s as a theory of semantics that prioritizes language users’ human experience, it views the meaning of linguistic elements in terms of a network of empirical information, which, in turn, motivates the concept represented by the linguistic elements. The theory laid a rich foundation for a variety of approaches associated with Construction Grammar and remains an intellectual resource for further research developments. This chapter focuses on the seminal ideas of Frame Semantics, further advanced in relation to Construction Grammar and the FrameNet project. After an overview of the theory, a variety of frame concepts (e.g., cognitive frame, interactional frame, and linguistic frame) are discussed. We then turn to how frames can effectively explain grammatical ‘well-formedness’ as illustrated by two case studies that were conducted on the path from Frame Semantics to the establishment of Construction Grammar. The last section discusses implications and prospects for the theory of Frame Semantics.
The US Constitution committed to equality in the Thirteenth, Fourteenth, and Fifteenth Amendments following the Civil War. Legislators and judges quickly confronted the question of what these new provisions might mean for private actors. The Radical Republicans aimed to bring the commitment to equal protection into private spaces, propagating republican discourses about the practical requirements of equal citizenship and the potential duties of private actors. However, the Supreme Court soon reached its own countervailing conclusion that only state actors, not private actors, gained duties from the Reconstruction Amendments. While this latter understanding remained firm, private actors effectively gained obligations to equality under the Civil Rights Act of 1964 and later court decisions working around the initial cabining of constitutional equality. Later debates evince a revival of republican-inflected language and arguments for something like horizontal application, even while the country’s jurists viewed such an extension of rights as basically impossible. Several other episodes in constitutional politics, both at the national and state levels, would continue to revisit this question across a range of issue areas.
A spectral convex set is a collection of symmetric matrices whose range of eigenvalues forms a symmetric convex set. Spectral convex sets generalize the Schur-Horn orbitopes studied by Sanyal–Sottile–Sturmfels (2011). We study this class of convex bodies, which is closed under intersections, polarity and Minkowski sums. We describe orbits of faces and give a formula for their Steiner polynomials. We then focus on spectral polyhedra. We prove that spectral polyhedra are spectrahedra and give small representations as spectrahedral shadows. We close with observations and questions regarding hyperbolicity cones, polar convex bodies and spectral zonotopes.
This chapter provides an overview of empirical support for Construction Grammar in the form of behavioral evidence, that is, information derived from the behavior of language users on certain tasks, typically through controlled experiments. Three types of evidence are discussed in particular: (i) evidence from language comprehension tasks that syntactic patternsconvey meaning independently of individual lexical items, (ii) evidence that constructions prime each other both in form and in meaning, and (iii) evidence that grammar consists of a network of related constructions of varying degrees of generality. Many of the cited studies come from the psycholinguistic literature, and even though they were originally not necessarily framed in terms of constructions, their findings are largely in line with the constructional approach. Throughout the discussion, it will be shown how these findings provide evidence for some of the core tenets of Construction Grammar.
Jiří Adámek, Czech Technical University in Prague,Stefan Milius, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany,Lawrence S. Moss, Indiana University, Bloomington
This chapter documents the parallel paths the US, UK, and EU have taken in transmuting voluntary corporate ESG commitments into hard law – statute, regulation, and judicial precedent.Whereas stakeholder capitalism was originally the province (mainly) of academics, international organizations, and special interest groups, in the years immediately preceding the 2020 pandemic, major businesses worldwide publicly declared their commitment to the so-called stakeholder model in the US, UK, and in continental Europe. These corporate behaviours were encouraged by proxy advisors andinstitutional investors.The chapter questions the extent to which the current generation of ESG-stakeholderism is in fact a sustainable business practice, capable of maintaining its current pace over a longer-term horizon. We also discuss how voluntary corporate ESG commitments have, over a short period of time, hardened into more formal sources of law and regulation, with examples from the US, EU, and UK. In conclusion, we identify some adverse consequences to this trend.
Ballism is defined as a movement disorder characterized by involuntary, forceful, flinging, high-amplitude “throwing” movements. Ballism is often accompanied by choreatic movements, the latter being more distal whereas ballism describes the proximal movements. With time, the proximal ballistic movements may become less pronounced, and the distal choreatic movements predominate. Ballism increases with action and is absent during sleep. The movements can be so violent that patients injure themselves. Ballism usually affects one side of the body, and it is then referred to as hemiballism. Older terms are hardly ever used anymore – that is, monoballism if only one limb is affected, biballism if both extremities on one side of the body but not the head or face are affected, or paraballism if both sides of the body are affected.