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Offenders’ interrogation behavior: the importance of crime scene characteristics and corroborating evidenceHellqvist, Sara January 2012 (has links)
Offender profiling aims at generating information of an offender based upon the crime committed and the goal is to be an adjunct in the crime invesigation process. The aim of the study was to examine crime scene characteristics and corroborating evidence and their associations with offenders' interrogation behavior. Results from 207 analyzed police files indicated that reactive (impulsive) offenders confessed more often when there was technical evidence against them compared to instrumental (calculating) offenders. Reactive offenders also had more injuries. Injured reactive offenders were more inclined to deny, whereas injured instrumental offenders claimed amnesia more often. When comparing the confessions injured reactive offenders were more inclined to confess than injured instrumental offenders. There was also a strong tendency implying more confessions with witness reports. The findings point towards the practical usefulness of information of crime scene characteristics and corroborating evidence in the interrogation phase by better tailoring the interviewing strategy.
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Free Spectral Range Matched Interrogation Technique for Wavelength Demodulation of Fiber Bragg Grating SensorsRahimi, Somayyeh 20 January 2009 (has links)
Free Spectral Range Matched Interrogation (FSRMI) technique for wavelength demodulation of fiber Bragg grating sensors.
We designed and tested a new wavelength demodulation system based on free-spectral-range-matched interrogation which employs a tunable fiber Fabry-Perot interferometer (FPI) and a multi-channel bandpass filter. This technique was deployed to test fiber Bragg gratings (FBG), long period gratings (LPG) and tilted fiber Bragg gratings (TFBG).
In the experimental setup, a broadband source launches light into a fiber Bragg grating under test and the reflection/transmission spectrum is fed into a tunable FPI. By tuning an external bias applied to the FPI, the transmission spectrum of FPI scans over a wavelength range. The input optical signal is therefore selectively passed through the FPI and then fed into a four-channel bandpass filter followed by four photodetectors. The optical signal is converted to electrical signal by the photodiodes and is acquired by a data acquisition system. Since a bandpass filter with four channels are used in this interrogation system it can scan four distinguished wavelength ranges simultaneously and thus the scan rate is four time faster.
We used this setup for doing some temperature and strain sensitivity measurements on some fiber gratings. Strain sensitivity measurements were done on FBG, TFBG and LPG and temperature sensitivity measurements were performed on TFBG. The strain and temperature sensitivity coefficients of these fiber Bragg grating sensors were obtained from experimental data. Our results show the potential of the integration of the FSRMI system with fiber Bragg gratings for temperature and strain multiple-sensor arrays with high sampling speed and high accuracy.
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Bloody instructions : determining an effective yet justifiable policy for coercive interrogation /Santucci, Joseph. January 2008 (has links)
Thesis (M.S.)--School of Advanced Air and Space Studies, 2008. / "June 2008." Vita. Includes bibliographical references (p. 85-91). Also available via the Internet.
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The measurement of suggestibility in adults with intellectual disabilities : an adaptation of the Gudjonsson Suggestibility Scales and a systematic review exploring the influence of cognitive variablesShackleton, Hannah Lydia January 2017 (has links)
Background: The tendency for accepting and/or behaving under the influence of other’s suggestion in an interview context can be described as ‘interrogative suggestibility’ (IS). The Gudjonsson Suggestibility Scales (GSS) are used within many clinical and forensic settings as a tool to gauge the reliability of information obtained during interviews. Concerns exist regarding the suitability of these scales for use amongst the population of people with an intellectual disability (ID). Previous research concludes that the GSS may disadvantage people with an ID, indicating a greater degree of IS than is actually the case. Method: The following systematic review of several electronic databases explores research to date (and what conclusions have been drawn) in relation to the degree to which cognitive variables relate to scores obtained on the GSS by people with an ID. The subsequent empirical study makes adaptations (e.g. supplementing verbal information with visuals) to the GSS in an attempt to improve its suitability for use with people with an ID. In addition, a number of cognitive variables are measured (e.g. verbal and visual memory) and their relationship with scores on the scales explored. Results: The adaptations to the GSS did not result in a significant change to scores on the GSS. It was found that visual memory ability may contribute to whether visual information effects scores on the GSS following adaptations. Whilst tentative conclusions are drawn regarding the role of memory ability, the systematic review of research was limited in it’s clarification of the role of cognitive variables in IS. This is likely due to limited scope and quality of existing research. Conclusion: Both the empirical study and the systematic review highlight the complexity of the field of interrogative suggestibility, particularly amongst people with an ID.
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Analýza respondentů ve výzkumu agentury Median (pracovní název) / Analysis of Respondents in MML Research of Agentura MedianBohatá, Eva January 2009 (has links)
Target of this dissertation thesis is analyze the respondents in the research Market@Media@Lifestyle, which conducted the Median agency. This work examines the differences between respondents completing the questionnaire thru the internet or paper form. There you can find the information summarized and proposed recommendations for next data use in future in the end of examines, especially for marketing purposes.
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Silicon Photonic Device for Wavelength Sensing and MonitoringVargas, German R 08 November 2012 (has links)
Over the last decade advances and innovations from Silicon Photonics technology were observed in the telecommunications and computing industries. This technology which employs Silicon as an optical medium, relies on current CMOS micro-electronics fabrication processes to enable medium scale integration of many nano-photonic devices to produce photonic integrated circuitry.
However, other fields of research such as optical sensor processing can benefit from silicon photonics technology, specially in sensors where the physical measurement is wavelength encoded.
In this research work, we present a design and application of a thermally tuned silicon photonic device as an optical sensor interrogator.
The main device is a micro-ring resonator filter of 10 $\mu m$ of diameter. A photonic design toolkit was developed based on open source software from the research community. With those tools it was possible to estimate the resonance and spectral characteristics of the filter. From the obtained design parameters, a 7.8 x 3.8 mm optical chip was fabricated using standard micro-photonics techniques. In order to tune a ring resonance, Nichrome micro-heaters were fabricated on top of the device. Some fabricated devices were systematically characterized and their tuning response were determined. From measurements, a ring resonator with a free-spectral-range of 18.4 nm and with a bandwidth of 0.14 nm was obtained. Using just 5 mA it was possible to tune the device resonance up to 3 nm.
In order to apply our device as a sensor interrogator in this research, a model of wavelength estimation using time interval between peaks measurement technique was developed and simulations were carried out to assess its performance. To test the technique, an experiment using a Fiber Bragg grating optical sensor was set, and estimations of the wavelength shift of this sensor due to axial strains yield an error within 22 pm compared to measurements from spectrum analyzer. Results from this study implies that signals from FBG sensors can be processed with good accuracy using a micro-ring device with the advantage of ts compact size, scalability and versatility. Additionally, the system also has additional applications such as processing optical wavelength shifts from integrated photonic sensors and to be able to track resonances from laser sources.
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Interactive and Immersive Surface Interrogation Techniques over Triangulated SurfacesGuan, Yanlin 10 May 2003 (has links)
Geometrical modeling is a crucial aspect of simulations involving manufactured objects. Apart from the pure construction of curves and surfaces, the analysis of their quality is equally important in the design and manufacturing process. In computer-aided simulation, the original freeorm surfaces need to be tessellated into triangulated surfaces before the simulation procedure. To concurrently and interactively visualize the results from both simulation and surface interrogation in a virtual environment, I propose two novel surface interrogation algorithms for triangulated surfaces instead of the traditional freeorm surfaces. The novel algorithms are interactive and immersive versions of two well-established surface interrogation techniques ? reflection lines and generalized focal surfaces. These two algorithms have been designed to overcome some limitations of the traditional approaches and make them available for interactive and immersive applications. For reflection lines, the new algorithm maps the triangulated surface onto the light plane so that the computation of distance between reflection ray and light line in three dimensions can be reduced to computation of intersections between light lines and triangle edges in two dimensions, simplifying the computation. For generalized focal surfaces, the new algorithm estimates curvature by simple computation of the derivatives of a3rd degree triangular Bézier patch on each triangle and removes the requirement for a minimum number of neighbor points and implicit requirements on how the neighbor points are distributed. Proposed future work on real-time rendering of surface interrogation using a texture mapping technique is discussed.
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Zvláštnosti výslechu dětí / Specificity of interrogation of childrenKubalíková, Lenka January 2013 (has links)
This diploma thesis focuses on the matters of children interrogation -specifically persons younger than 15 years being in position of victims or witnesses of crime. Even though I narrowed down the topic of the thesis, it is certainly very broad and complicated one which can be discussed more in depth. Children interrogation usually requires extensive efforts of the interrogating person - patience and empathy above all. Also, previous experience and the understanding that each case is individual and each child has to be apporached in a different way, are crucial. The interrogating's objective is to find out the relevant information and prevent secondary victimisation of the child at the same time. Diploma thesis contains two parts - theoretical and practical. Theoretical part is focused on Czech legal regulations related to these matters, specifics of child personality (ontogenesis, temperament and child character) and methods of interrogation (analyses single stages of the interrogation, deposition, documentation, persons taking part in the interrogation and possible mistakes which can be made). Special emphasis is put on suitable interrogating environment, approach to the children and prevention of secondary victimisation. The thesis also considers specific problems related to the interrogation, for...
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Electroniques dédiées à l'asservissement d'oscillateurs et à la mesure physique à l'aide de capteurs à ondes élastiques / Electronics dedicated to oscillators and psysical mesurement using elastic wave sensorsChretien, Nicolas 27 June 2014 (has links)
Le travail en bande de base permet de s’affranchir du bruit de multiplication de fréquenced’un signal. Cependant, la conception d’un oscillateur fonctionnant à haute fréquence nécessited’avoir un composant sélectif en fréquence, fonctionnant à haute fréquence et avec un facteurde qualité élevée. L’approche proposée dans cette thèse consiste à évaluer un composant à ondeélastique de volume à harmoniques élevées, le HBAR, pour la réalisation d’un oscillateur compactet stable, travaillant en bande de base à 2,45 GHz, à des fins d’utilisation de source defréquence pour un système RADAR. Les oscillateurs réalisés présentent un bruit de phase de-100 dBc/Hz pour un écart à la porteuse de 1 kHz, avec une perspective d’amélioration d’une dizainede dBc/Hz de cette valeur d’après la simulation. L’étude porte également sur l’analyse del’influence du bruit de phase de l’oscillateur local sur la résolution d’une mesure RADAR dontl’effet est démontré expérimentalement en utilisant une ligne à retard à onde élastique de surface(SAW) comme cible RADAR coopérative. Le travail effectué sur cette cible coopérative apermis d’aboutir à un prototype d’électronique embarqué pour l’interrogation de lignes à retardà ondes élastiques utilisées en tant que capteurs passifs interrogeables à distance. L’architecturede l’interrogateur combine une méthode RADAR impulsionnelle à un système d’échantillonnageen temps équivalent permettant de réduire l’importance de la puissance de calcul dansle traitement de la réponse. Les inconvénients de l’échantillonnage en temps équivalent sontminimisés par une interrogation judicieuse pour acquérir seulement les points nécessaires à lamesure. Les mesures effectuées sur un capteur de température commercial présentent une résolutionde 0,2°C avec une bande passante de 35 kHz. Pour les applications nécessitant une bandepassante plus élevée (allant jusqu’à 200 kHz), un second prototype n’ayant pas de restrictionsur les ressources de calcul mises en oeuvre est également présenté dans cette thèse, combinantla même méthode impulsionnelle avec un échantillonnage en temps réel. / Eliminating the step of frequency multiplication, by working in baseband, reduces the phasenoise of an oscillator. However, the design of a high frequency oscillator requires a frequencyselective component, which operates at high frequency and with a high quality factor. The approachproposed in this thesis is to evaluate a High-overtone Bulk Acoustic-wave Resonator,the HBAR, for the realization of a compact and stable oscillator at 2.45 GHz for a RADAR system.The designed oscillator exhibits a phase noise of −100 dBc/Hz at 1 kHz from the carrier,with an expected improvement of a dozen dBc/Hz according to the simulation. The study alsofocuses on the analysis of the local oscillator phase noise impact on the resolution of a RADARmeasurement and an experimental demonstration is done using a delay line surface acousticwave (SAW) as cooperative RADAR target. The work on this cooperative target has lead to aprototype of an embedded electronics for interrogating surface acoustic wave delay lines usedas passive sensors remotely interrogated through a wireless link. The architecture combines thepulsed RADAR signal generation method with an equivalent time sampling system in orderto reduce the computing power needed to process the response. The disadvantages of equivalenttime sampling are minimized by a smart interrogation strategy to acquire only mandatorysamples. Measurements on a commercial temperature sensor have a resolution of 0.2°C witha 35 kHz bandwidth. For applications in need of higher bandwidth (up to 200 kHz), a secondprototype with no restriction on computing resources is also presented in this thesis, combiningthe same impulse RADAR method with real-time sampling.
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L'interrogation au fondement de l'interaction langagière / Questions as a foundation for language and cognitionTierney-Hancock, Christian 11 December 2018 (has links)
La linguistique est une science et en tant que telle se doit d’avancer des explications sur les faits de langue. Notre objet est l'interrogation. Notre méthode est inspirée des sciences naturelles. Après un survol théorique, nous tentons de situer l'émergence de l'interrogation parmi un ensemble des phénomènes linguistiques et cognitifs. L'interrogation apparaît entre la deuxième et troisième année chez l'enfant. Les animaux ne possèdent pas l'interrogation, ce qui laisse penser que l’interrogation est un phénomène essentiellement humain. Les mots interrogatifs en wh- concentrent les propriétés fondamentales de l’interrogation et on en trouve d’ailleurs des équivalents dans presque toutes les langues du monde. Le logogène wh- repose sur des mécanismes neurologiques précis, que nous tentons d’identifier grâce aux apports récents des neurosciences. Nous procédons à des études de cas tirés du corpus Lara, qui est disponible dans la base de données CHILDES. Il existe une corrélation entre complexité syntaxique et questions élaborées. Nous le montrons de manière quantitative et qualitative. Nous étudions aussi les wh-words et leurs collocations pour mettre en évidence un réseau. L'interrogation a joué un rôle important dans l'évolution de notre espèce, à travers la mutation du gène myh16. L'interrogation permet l'accès à une sémantique élaborée. L'interrogation est présente à la source de la philosophie occidentale. L'interrogation est au fondement de l'interaction langagière. / Linguisticsis a science and as a such must explain the facts of language. Our method draws its inspiration from biology. After reviewing the relevant literature, we attempt to relate the emergence of interrogation to other cognitive and linguistic phenomena. Interrogation appears in child language between the ages of two and three. Interestingly, numerous studies have established that animals do not use questions, so that interrogation seems to be an intrinsically human process. Wh- question words epitomize interrogation and almost every language has them. The logogen wh- has a precise neurological base. We study the Lara Corpus extracted from the CHILDES database. There is a correlation between MLU and the complexity of questions asked by the child. We also study wh- words and their collocations to highlight the existence of a network. This network allows us to elaborate a Minimal Mind Design. Interrogation emerged after the mutation of myh16 in our species and is body-based. It provides access to elaborate semantics and has played a crucial role in Western philosophy. Interrogation is the foundation of language-based interactions.
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