The notion of Mode 2, as a shift from Mode 1 science-as-we-know-it, depicts science as practically relevant, socially distributed and democratic. Debates remain over the empirical substantiation of Mode 2. In particular, our understanding has been impeded by the mutually exclusive framing of Mode 1/Mode 2. Looking at how academic science is justified to diverse institutional interests – a situation associated with Mode 2 – it is asked, “What happens to Mode 1 where Mode 2 is in demand?” This study comprises two sequential phases. It combines interviews with 18 university spinout founders as micro-level Mode 2 exemplars, and macro-level policy narratives from 72 expert witnesses examined by select committees. An interpretive scheme (Greenwood and Hinings, 1988) is applied to capture the internal means-ends structure of each mode, where the end is to satisfy demand constituents, both in academia (Mode 1) and beyond (Mode 2). Results indicate Mode 1’s enduring influence even where non-academic demands are concerned, thus refuting that means and ends necessarily operate together as a stable mode. The causal ambiguity inherent in scientific advances necessitates (i) Mode 1 peer review as the only quality control regime systematically applicable ex ante, and (ii) Mode 1 means of knowledge production as essential for the health and diversity of the science base. Modifications to performance criteria are proposed to create a synergy between modes and justify public investment, especially in the absence of immediate outcomes. The study presents a framework of Mode1/Mode 2 coexistence that eases the problem with the either/or perception and renders Mode 2 more amenable to empirical research. It is crucial to note, though, that this is contingent on given vested interests. In this study, Mode 1’s fate is seen through academic scientists whose imperative is unique from those of other constituents, thereby potentially entailing further struggles and negotiation.

Based on the limited outcomes and often failed implementation processes of annual employee surveys a new phenomenon for collecting people data has risen; the pulsed employee survey. This survey and its continuous way of measuring are by many providers and consultants stated to be an important tool that increases employee engagement. The phenomenon of the pulsed employee survey has so far received limited academic attention, despite its growing importance as a potential institutionalized practice. Therefore, this study aims at broadening the understanding of the phenomenon of the pulsed employee survey. How is it transformed into organizations during an implementation process and can the process be seen as coupled or decoupled from the institutionalized practice? Further, what explains the potential coupling or decoupling? To investigate this, a model based on decoupling theories by Bromley & Powell(2012) has been used through a qualitative case study. The result shows that, even though the surveys are implemented into the organizations, means-ends decoupling can be found, whichmay be explained by the complexity of what is measured as well as the multifaceted expectations and perceptions at different organizational levels.

O presente trabalho examina o chamado problema da indeterminação jurídica, de maneira a procurar explicitar o tipo de questões teóricas que suscita e apreciar o alcance ou fecundidade das respostas que tais questões possibilitam, sobretudo sob o ângulo da discussão dos pressupostos institucionais subjacentes à organização das atividades de aplicação do direito. Nesse contexto, a tese central do trabalho é a de que a ideia de indeterminação do direito, restrita ao contexto jurisdicional e entendida como um fenômeno linguístico, esgotou seu potencial teórico, e que a percepção desse esgotamento deveria conduzir à exploração de formas pelas quais questões de indeterminação do direito podem ser mais produtivamente tratadas como questões sobre configuração institucional do que como questões sobre a natureza, ou defeitos, da linguagem. São analisadas abordagens paradigmáticas do problema - no pensamento de Hans Kelsen, H.L.A. Hart e Ronald Dworkin - e os pressupostos institucionais que as informam, assim como identificados pontos de partida, nos estudos de Lon L. Fuller voltados à avaliação de formas alternativas de organização social, para exercícios de inovação institucional. A possibilidade de tais exercícios é exemplificada, ao final do trabalho, com propostas específicas de inovação, elaboradas por autores contemporâneos, concentradas na função jurisdicional, dirigidas a enfrentar o reconhecido impasse entre propostas de expansão e contenção da atuação judicial no contexto de efetivação de direitos sociais de caráter distributivo. / This work analyses the so-called legal indeterminacy problem, in order to make explicit the kind of theoretical issues it engenders and to assess the scope or fecundity of the answers such issues make possible, especially in terms of the discussion of institutional assumptions underlying the organization of the adjudicative function. In this setting, the central claim of this work is that the theoretical potential of the idea of legal indeterminacy, limited to the adjudicative realm and understood mainly as a linguistic phenomenon, has been worn out, and that the acknowledgment of this result should lead to the investigation of ways in which ?legal indeterminacy? issues might be more productively treated as issues about institutional innovation than issues about the nature, or defects, of language. The exemplary works of Hans Kelsen, H.L.A. Hart, and Ronald Dworkin and the institutional assumptions underlying their thought, in connection with the indeterminacy problem, are reviewed, along with the writings of Lon L. Fuller dedicated to the assessment of alternative processes of social ordering, which are taken as a point of departure for exercises in institutional innovation. The possibility of such exercises is illustrated, at the end of this work, with specific innovation proposals by contemporary authors focused on the adjudicative job, dedicated to facing the theoretical deadlock between proposals for expanding and restricting the judicial role in the context of making welfare rights, of a distributive character, concrete

The investigation of liquid crystal polymer (LCP) technology to function as a low-cost next-generation organic platform for designs up to millimeter-wave frequencies has been performed. Prior to this research, the electrical performance of LCP had been characterized only with the implementation of standard transmission lines and resonators. In this research, a wide variety of passive functions have been developed on LCP technology and characterized for the first time. Specifically, we present the development of patch antenna arrays for remote sensing applications, the performance of compact low-pass and band-pass filters up to millimeter-wave frequencies, and the integration of passive elements for X-band and V-band transceiver systems. First, dual-frequency/dual-polarization antenna arrays have been developed on multilayer LCP technology and have been integrated with micro-electro-mechanical-system (MEMS) switches to achieve real-time polarization reconfigurability. These arrays are conformal, efficient and have all the features desirable for applications that require space deployment. Second, a wide variety of filters with different physical and functional characteristics have been implemented on both single and multilayer LCP technology. These filters can be classified based on the filter type (low-pass/band-pass), the resonators used (single-mode/dual-mode), the response characteristics (symmetric/asymmetric), and the structure of the filter (modular/non-modular). Last, examples of integrated modules for use in transceiver systems are presented. This part of the research involves the development of duplexers, radiating elements, as well as their integration. The duplexers themselves are realized by integrating a set of band-pass filters and matching networks. The characterization of the individual components, and of the integrated system are included. This research has resulted in a thorough understanding of LCP's electrical performance and its multilayer lamination capabilities pertaining to its functioning as a material platform for integrated microwave systems. Novel passive prototypes that can take advantage of such multilayer capabilities have been developed.

The objective of the proposed research is to present a compact system-on-package (SOP)-based passive front-end solution for millimeter-wave wireless communication/sensor applications, that consists of fully integrated three dimensional (3D) cavity filters/duplexers and antenna. The presented concept is applied to the design, fabrication and testing of V-band transceiver front-end modules using multilayer low temperature co-fired (LTCC) technology. The millimeter-wave front-end module is the foundation of 60 GHz (V-band) wireless systems for short-range multimedia applications, such as high-speed internet access, video streaming and content download. Its integration poses stringent challenges in terms of high performance, large number of embedded passive components, low power consumption, low interference between integrated components and compactness. To overcome these major challenges, a high level of integration of embedded passive functions using low-cost and high-performance materials that can be laminated in 3D, such as the multilayer LTCC, is significantly critical in the module-level design. In this work, various compact and high-performance passive building blocks have been developed in both microstrip and cavity configurations and their integration, enabling a complete passives integration solution for 3D low-cost wireless millimeter-wave front-end modules. It is worthy to note that most of the designs implemented comes away with novel ideas and is presented as the first extensive state-of-art components, entirely validated by measured data at 60 GHz bands.

English exhibits a rich apparatus of tense, aspect, time adverbials and other expressions that can be used to order states of affairs with respect to each other, or to locate them at a point in time with respect to the moment of speech. Ideally one would want a semantics for these expressions to demonstrate that an orderly relationship exists between any one expression and the meanings it conveys. Yet most existing linguistic and formal semantic accounts leave something to be desired in this respect, describing natural language temporal categories as being full of ambiguities and indetenninacies, apparently escaping a uniform semantic description. It will be argued that this anomaly stems from the assumption that the semantics of these expressions is directly related to the linear conception of time familiar from temporal logic or physics - an assumption which can be seen to underly most of the current work on tense and aspect. According to these theories, the cognitive work involved in the processing of temporal discourse consists of the ordering of events as points or intervals on a time line or a set of time lines. There are, however, good reasons for wondering whether this time concept really is the one that our linguistic categories are most directly related to; it will be argued that a semantics of temporally referring expressions and a theory of their use in defining the temporal relations of events require a different and more complex structure underlying the meaning representations than is commonly assumed. A semantics will be developed, based on the assumption that categories like tense, aspect, aspectual adverbials and propositions refer to a mental representation of events that is structured on other than purely temporal principles, and to which the notion of a nucleus or consequentially related sequence of preparatory process, goal event and consequent state is central. It will be argued that the identification of the correct ontology is a logical preliminary to the choice of any particular formal representation scheme, as well as being essential in the design of natural language front-ends for temporal databases. It will be shown how the ontology developed here can be implemented in a database that contains time-related information about events and that is to be queried by means of natural language utterances.

Made available in DSpace on 2014-06-11T19:26:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-04-26Bitstream added on 2014-06-13T18:06:57Z : No. of bitstreams: 1 ricieri_mm_me_sjrp.pdf: 537434 bytes, checksum: e4a423e62415a76e55314da105c70574 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Um grupo G se decompõe sobre um subgrupo S se G þe um produto livre com subgrupo amalgamado S ou uma extensão HNN. Neste trabalho, propusemo-nos a relacionar, sob alguns aspectos, decomposição de grupos e invariantes ends. Mais precisamente, demonstramos os teoremas da forma normal para produtos livres com subgrupo amalgamado e extensões HNN e apresentamos alguns resultados relativos `a teoria de grafos, ends de grupos e pares de grupos, finalizando com a prova de um teorema de Kropholler e Roller, sobre decomposição de grupos, envolvendo a obstrução sing. / A group G splits over a subgroup S if G is a free product with amalgamated subgroup S or an HNN extension. In this work, we are concerned in relating, under some aspects, splittings of groups and invariants ends. More precisely, we prove the theorems normal forms for free products with amalgamated subgroup and HNN extensions and we present some results related with the theory of graphs, ends of groups and pairs of groups, concluding with the proof of a theorem by Kropholler and Roller, on decomposition of groups, involving the obstruction sing.

O presente trabalho examina o chamado problema da indeterminação jurídica, de maneira a procurar explicitar o tipo de questões teóricas que suscita e apreciar o alcance ou fecundidade das respostas que tais questões possibilitam, sobretudo sob o ângulo da discussão dos pressupostos institucionais subjacentes à organização das atividades de aplicação do direito. Nesse contexto, a tese central do trabalho é a de que a ideia de indeterminação do direito, restrita ao contexto jurisdicional e entendida como um fenômeno linguístico, esgotou seu potencial teórico, e que a percepção desse esgotamento deveria conduzir à exploração de formas pelas quais questões de indeterminação do direito podem ser mais produtivamente tratadas como questões sobre configuração institucional do que como questões sobre a natureza, ou defeitos, da linguagem. São analisadas abordagens paradigmáticas do problema - no pensamento de Hans Kelsen, H.L.A. Hart e Ronald Dworkin - e os pressupostos institucionais que as informam, assim como identificados pontos de partida, nos estudos de Lon L. Fuller voltados à avaliação de formas alternativas de organização social, para exercícios de inovação institucional. A possibilidade de tais exercícios é exemplificada, ao final do trabalho, com propostas específicas de inovação, elaboradas por autores contemporâneos, concentradas na função jurisdicional, dirigidas a enfrentar o reconhecido impasse entre propostas de expansão e contenção da atuação judicial no contexto de efetivação de direitos sociais de caráter distributivo. / This work analyses the so-called legal indeterminacy problem, in order to make explicit the kind of theoretical issues it engenders and to assess the scope or fecundity of the answers such issues make possible, especially in terms of the discussion of institutional assumptions underlying the organization of the adjudicative function. In this setting, the central claim of this work is that the theoretical potential of the idea of legal indeterminacy, limited to the adjudicative realm and understood mainly as a linguistic phenomenon, has been worn out, and that the acknowledgment of this result should lead to the investigation of ways in which ?legal indeterminacy? issues might be more productively treated as issues about institutional innovation than issues about the nature, or defects, of language. The exemplary works of Hans Kelsen, H.L.A. Hart, and Ronald Dworkin and the institutional assumptions underlying their thought, in connection with the indeterminacy problem, are reviewed, along with the writings of Lon L. Fuller dedicated to the assessment of alternative processes of social ordering, which are taken as a point of departure for exercises in institutional innovation. The possibility of such exercises is illustrated, at the end of this work, with specific innovation proposals by contemporary authors focused on the adjudicative job, dedicated to facing the theoretical deadlock between proposals for expanding and restricting the judicial role in the context of making welfare rights, of a distributive character, concrete

The growing demand for wireless communication systems is driving the integration of radio frequency (RF) front-ends on the same chip with multi-band functionality and higher spectral efficiency. Microelectromechanical systems (MEMS) have an overarching applicability to RF communications and are critical components in facilitating this integration process. Among a variety of RF MEMS devices, piezoelectric MEMS resonators have sparked significant research and commercial interest for use in oscillators, filters, and duplexers. Compared to their bulky quartz crystal and surface acoustic wave (SAW) counterparts, MEMS resonators exhibit impressive advantages of compact size, lower production cost, lower power consumption, and higher level of integration with CMOS fabrication processes. One of the promising piezoelectric MEMS resonator technologies is the aluminum nitride (AlN) contour mode resonator (CMR). On one hand, AlN is chemically stable and offers superior acoustic properties such as large stiffness and low loss. Furthermore, CMRs offer low motional resistance over a broad range of frequencies (few MHZ to GHz), which are lithographically-definable on the same silicon substrates. To date, RF MEMS resonators (include CMRs) have been extensively studied; however, one aspect that was not thoroughly investigated is how to modulate/tune their equivalent parameters to enhance their performance in oscillators and duplexers. The goal of this thesis is to investigate various modulation methods to improve the thermal stability of the resonator, its “effective” quality factor when used in an oscillator, and build completely novel non-reciprocal components. Broadly defined, modulation refers to the exertion of a modifying or controlling influence on something, herein specifically, the resonator admittance. In this thesis, three categories of modulation methods are investigated: thermal modulation, force modulation, and external electronic modulation. Firstly, the AlN CMR’s center frequency can be tunned by the applied thermal power to the resonator body. The resonator temperature is kept constant (for example, 90 °C) via a temperature sensor and feedback control such that the center frequency is stable over the whole operation temperature range of interest (e.g. –35 to 85 °C). The maximum power consumption to sustain the maximum temperature difference (120 ºC in this thesis) between resonator and ambient is reduced to a value as low as 353 μW – the lowest ever reported for any MEMS device. These results were attained while simultaneously maintaining a high quality factor (up to 4450 at 220 MHz device). The feedback control was implemented by either analog circuits or via a microprocessor. The analog feedback control, which innovatively utilized a dummy resistor to compensate for temperature gradients, resulted in a total power consumption of 3.8 mW and a frequency stability of 100 ppm over 120 ºC. As for the digital compensation, artificial neural network algorithm was employed to facilitate faster calibration of look-up tables for multiple frequencies. This method attained a frequency stability of 14 ppm over 120 ºC. The second modulation method explored in this thesis is based on the use of an effective external force to enhance the 3-dB quality factor of AlN CMRs and improve the phase noise performance of resonator-based oscillators. The force modulation method was embodied in a two-port device, where one of the two ports is used as a one-port resonator and the other is driven by an external signal to effectively apply an external force to the first port. Through this technique, the quality factor of the resonator was boosted by 140 times (up to 150,000) and the phase noise of the corresponding oscillator realized using the resonator was reduced by 10 dBc/Hz. Lastly, a novel magnetic-free electrical circulator topology that facilitates the development of in-band full duplexers (IBFD) for simultaneous transmit and receive (STAR) is proposed and modeled. Fundamentally, a linear time-invariant (LTI) filter network parametrically modulated via a switching matrix is used to break the reciprocity of the filter. The developed model accurately predicts the circulator behavior and shows very good agreement with the experimental results for a 21.4 MHz circulators built with MiniCircuit filter and switch components. Furthermore, a high frequency (1.1 GHz) circulator was synthesized based on AlN MEMS bandpass filters and CMOS RF switches, hence showing a compact approach that can be used in handheld devices. The modulation frequency and duty cycle are optimized so that the circulator can provide up to 15 dB of isolation over the filter bandwidth while good power transfer between the other two ports is maintained. The demonstrated device is expected to intrinsically offer low noise and high linearity. The combination of the first two modulation methods facilitates the implementation of monolithic, temperature-stable, ultra-low noise, multi-frequency oscillator banks. The third modulation technique that was investigated sets the path for the development of CMOS-compatible in-band full duplexers for simultaneous transmit and receive and thus facilitates the efficient utilization of the electromagnetic spectrum. With the aid of all these three modulation approaches, the author believes that a fully integrated, multi-frequency, spectrum-efficient transceiver is enabled for next-generation wireless communications.

Ce travail de thèse a pour ambition de proposer une nouvelle explication dubasculement de la guerre à la paix. Nous débutons notre recherche en nous intéressant, dans unepremière partie, à la définition de la guerre et de la fin de la guerre. Nous défendons alors l’idéeselon laquelle la guerre, conçue comme l’une des phases alternatives des relations bilatérales entregroupes sociaux, prend fin dès lors qu’au moins l’un des deux belligérants aux prises cesse derecourir à la violence. Nous établissons ensuite une typologie des différentes modalités de la fin dela guerre : nous posons qu’un belligérant arrête d’employer la violence soit parce qu’il n’en est plusphysiquement capable (nous parlons d’incapacité physique), soit parce qu’il en a pris la décision(nous parlons de renoncement politique). Nous soutenons l’hypothèse selon laquelle seul lerenoncement politique conduit à la continuation des relations entre groupes sociaux et donc à lapaix.Dans une seconde partie, nous nous réapproprions l’opposition introduite par Clausewitz entre laguerre absolue et les guerres réelles afin de mettre au jour notre propre explication du renoncementpolitique. La notion de guerre absolue nous permet de démontrer que le renoncement politiquen’est possible qu’à condition que l’Etat valorise davantage un intérêt autre que celui à l’origine deson recours à la violence. Nous proposons finalement qu’un Etat prend la décision de renoncer àla violence quand il ne pense plus pouvoir réaliser l’objectif politique qu’il poursuit violemmentsans nuire de façon inacceptable à un intérêt qu’il juge plus important. / This PhD thesis aims to offer a new explanation of the transition from war to peace.We begin by exploring, in a fist section, the definition of war and of the end of war. We argue thatwar, understood as one of the alternating phases of bilateral relations between social groups, endswhen at least one of the belligerent parties ceases to use violence. We then propose a typology ofthe different ways by which a war can end: we contend that a State ceases to use violence eitherbecause it is no longer physically capable of using it (termed “physical incapacity”) or because itdecided to no longer use it (termed “political renouncement”). We claim that only the politicalrenouncement of one or both belligerent parties leads to the continuation of the relations betweenthe two groups and therefore to peace.In the second section, we reinterpret the opposition developed by Clausewitz between “absolutewar” and “real wars” in order to elaborate our own explanation of political renouncement. Theconcept of “absolute war” enables us to demonstrate that political renouncement is possible onlyif the State favours an interest other than the one justifying its use of violence. We eventuallycontend that a State will decide to stop using violence when it no longer believes that it can achievethe political objective that it is pursuing by the means of violence without harming in anunacceptable way an interest it considers more important.