Denna kandidatuppsats undersöker erfarenheter av tidigare familjehemsplacerade barn angående deras möjligheter att uttrycka åsikter och påverka beslutet om deras placering, samt det arbete socialsekreterare gör för att främja detta och det rättsliga överväganden som måste göras. Genom en kvalitativ forskningsmetodologi baserad på fem respondenter, varav tre tidigare familjehemsplacerade barn och två socialsekreterare analyseras detta.   Det framkommer från resultatet att både lagliga och sociala övervägande påverkar beslutet om placeringen, med fokus på att LVU-beslut ibland kan vara svåra att uppnå trots tydliga behov. Eftersom övergången från frivillig placering till tvångsplacering kräver starka skäl och noggrant övervägande. Kraven på familjehem diskuteras och hur viktig matchningen mellan barn och familj är för att säkerställa en trygg och positiv uppväxt i familjehem.   Genom intervjuerna med tidigare familjehemsplacerade barn får vi en inblick i deras upplevelser av att vara placerad i familjehem samt graden av upplevd delaktighet. Vissa uttryckte en brist på delaktighet i beslut som rör dem vid placeringen medan andra haft positiva erfarenheter av att deras åsikter beaktats och respekterats. Barnets delaktighet under processen framhävs, med användning av metoder som Norrköpingsmodellen för att säkerställa att barnets röst hörs och att deras behov beaktas.

Child pornography offenders (CPOs) are ever present in the criminal justice system, yet the research on this population of offenders is less advanced than in many other areas of corrections (Eke & Seto, 2012; Seto & Eke, 2005). In order to effectively manage CPOs, it is necessary to accurately assess their risk, and, where applicable, provide rehabilitation options targeted toward their criminogenic needs. The current study examined the both the Level of Service Inventory-Ontario Revision (LSI-OR) and a modified version of the Child Pornography Offender Risk Tool (CPORT-M) and their ability to predict child pornography (CP), sexual, violent, and general recidivism with a sample that included CPOs, other sexual offenders (SOs), and non-sexual offenders (NSOs), who are under the responsibility of the province of Ontario. The results from the ROC analyses that examined the LSI-OR with the recidivism variables, for the various groups of offenders, suggested that the LSI-OR has good predictive accuracy for general recidivism for all of the offenders, as well as good predictive accuracy of violent and sexual recidivism with only the SO and NSO groups. Further, it was found that the CPORT-M had good predictive accuracy for general recidivism among the CPOs. It is appropriate to use both the LSI-OR and the CPORT-M to assess risk of general recidivism with CPOs.

La ricerca sul «Dionisismo nelle comunità fenicie e puniche: il caso di Mozia» prende in considerazione le diverse attestazioni del dionisismo quale si evidenziano, con le sue ricadute politiche e cultuali, nelle comunità fenicie e puniche della Sicilia, della Sardegna e della stessa Cartagine. Accanto ad una lettura testuale utile alla storicizzazione contestualizzata del fenomeno, fra cui lo stesso pitagorismo, si propone un corpus che comprende prodotti delle categorie artigianali che restituiscono iconografie di’ambientazione dionisiaca, testimonî dell'adozione sociale e pubblica di una cultualità la cui origine si mostra sempre più vicina a contesti vicino-orientali. Da una rilettura storicizzata del dionisismo, quindi, si mettono in evidenza con un approccio multidisciplinare e comparativistico le caratteristiche del culto, di cui si sottolinea fra l’altro la componente ctonia. In particolare il santuario tofet, con le sue recenti riletture di santuario cittadino e pluricultuale, sembra proporre analogie fra il mlk e la ritualità dionisiaca. Analogie che confermano la vocazione mediterranea ed interculturali delle comunità fenicie e puniche e che in più di un caso daranno luogo a sincretismi che si trasmetteranno sino ed oltre l’età romana. In questo colloquio interetnico Mozia svolge un ruolo non secondario insieme a Selinunte, vero e proprio laboratorio del sincretismo cultuale della Sicilia Occidentale pre-romana, dove i culti di Zeus Melichios e di Demetra si pongono come realtà rituali fra le più utili alla coesione sociale, quell’analoga coesione solciale elitaria perseguita dal dionisismo. / The research on “Dionysism in Phoenician and Punic communities: the Mozia case” takes into consideration the different attestations of Dionysism that emerge, with their political and cultural relapses, in the Phoenician and Punic communities of Sicily, Sardinia and Carthage herself. Beside a textual reading useful to a contextualized historicization of the phenomenon, including Pythagorism itself, it is here set a corpus that includes products of the handicraft classes that return iconographies of Dionysiac scenery, evidences of the social and public adoption of a creed whose origins appear increasingly closer to Near-East contexts. A historicized reading of Dionysism is thus to point out, with a multidisciplinary and comparative approach, the features of the cult, of which is underlined the Chthonic element. In particular, the tofet sanctuary, with its recent reinterpretation as urban shrine, seems to suggest analogies between the mlk and the Dionysiac rituals. Analogies that confirm the mediterranean and intercultural vocation of the Phoenician and Punic communities and that, in more than a case, will give cause for syncretisms that will pass on to the Roman age and beyond. In this interethnical exchange Mozia plays a primary role jointly with Selinunte, true laboratory of the cultural syncretism of pre-Roman West Sicily, where the cults of Zeus Melichios and Demeter stay as some of the most useful ritual realities for social cohesion; that similar elitist social cohesion pursued by Dionysism.

Questo lavoro presenta una ricerca sulle forme della soggettività femminile in tre importanti opere della poesia persiana medievale: lo Shah-name di Ferdowsi, il Vis o Ramin di Gorgani e il Homay e Homayun di Khwaju di Kerman. Ciascuna opera viene analizzata separatamente nei primi tre capitoli, con speciale riguardo ai personaggi femminili; nel quarto capitolo si trova un excursus sulla misoginia nella letteratura persiana medievale e nel quinto capitolo si effettua una vasta comparazione dei tre autori rispetto al tema della tesi. Un capitolo finale è dedicato al tema della rivalutazione della donna nel romanzo persiano. / This is a research on the forms of female subjectivity in three major works of the Persian medieval poetry: Shah-name by Ferdowsi, Vis o Ramin by Gorgani and Homay o Homayun by Khwaju of Kerman. Each work is analyzed separately in the first three chapters, with special regard to the female characters; in chapter 4 there is an excursus on misogyny in the Persian medieval literature and in chapter 5 there is a large comparative analysis of the three authors on the theme of female subjectivity. A final chapter is devoted to the theme of the revaluation of woman in the Persian romance.

No description available.

Jitter is defined as timing uncertainties of digital signals at their intended ideal positions in time. While it undermines valuable clock budget and limits the maximum clock frequency in I/O circuitry, it is one of the most difficult parameters to measure accurately due to the small value and randomness. This thesis proposes a random jitter RMS measurement method using AND and OR operations, which targets BIST applications. This thesis is organized as follows. Chapter 1 introduces the motivation of the proposed work. It includes a comparison between two major approaches to jitter measurement. Chapter 2 explains the proposed random jitter estimation method in detail. Chapter 3 describes circuit implementations with design considerations. Chapter 4 demonstrates estimation results from circuit level simulation runs. Chapter 5 discusses the source of error in the jitter estimation and concludes. / text

Recently, the conventional Matrix Converter has been considered for aerospace applications because of its compactness in weight and size due to absence of a DC-Link capacitor. In addition the Matrix Converter is capable of producing a variable output voltage with unrestricted input and output frequency. This is useful in aerospace applications which require a wide range of input frequency, sometimes from 360 Hz to 900 Hz. These key features are only obtained from the Matrix Converter without using any large passive components. The Matrix Converter has an inherent regeneration capability. However, the avoidance of the regeneration may be vital in many aerospace applications, such as aircraft surface actuation systems. According to current aircraft power quality specifications regeneration is not allowed and must be dissipated with in the Matrix Converter drive itself. This thesis proposes two novel methods which allow regeneration from the Matrix Converter motor drive to be avoided. These are the Bi-Directional Switch (BDS) method and Input Power Clamp (IPC) method. In order to detect regeneration in the Matrix Converter motor drive two techniques are used. These are the Power Comparison (PC) technique and Input Voltage Reference (IVR) technique. Finally, to validate the proposed methods a Matrix Converter has been designed and built with a Regeneration Control Circuit (RCC). Indirect vector control is used to control 4.0 kW Induction Motor. Based on the simulation results and experimental results using the BDS method to avoid regeneration with a Matrix Converter is feasible.

When islanding occurs, power supply from the main grid is interrupted which causes a problem when distributed generators continue to provide power into distributed networks. An islanding situation should be detected accurately soon after the island is formed. Because failure to trip the islanded distributed resource can lead to a number of problems for the resource and the connected load. Although ROCOF islanding detection method is the most commonly employed anti-islanding protection technique, it provides fast detection and easily implementation. It is sensitive to the system disturbance. Therefore, the application of the ROCOF relay to detect system islanding has been limited. This thesis proposes a solution to enhance the performance of the ROCOF relay by cooperation with rate of change of power or v2/p interlock function. During system load variation, the false operation of ROCOF relay can be blocked effectively. It is validated by applied in grid-connected synchronous generator, Doubly-fed Induction generator (both simulation and experiment) and microgrid. The principle of rate of change of power or v2/p interlock function are presented in this thesis. The new interlock function v2/p with ROCOF relays works well for different types of DGs within a short detection time without introducing perturbation into the system, which are the advantages over other active and hybrid islanding detection methods. The performances characteristics of ROCOF relays for DGs islanding detection (i.e. frequency measuring methods, measuring windows, generator inertia constant, relay settings and load power factor) are investigated. In addition, two other islanding detection methods (impedance measurement (active method) and the Total Harmonic Method) are applied to the grid-connected DFIG distributed system, the comparison and effectiveness of these two methods utilized in islanding and load changing conditions are also discussed.

In this thesis a single-ended traveling wave fault location algorithm is developed for autonomously locating short circuit faults on a radial distribution line using the high frequency traveling wave transients. The traveling wave pattern observed at the sub-station is correlated with the traveling wave pattern predicted using time tree analysis for different fault locations and fault resistance. Genetic search techniques are used to evolve an initial population of possible fault locations to determine the most likely fault location. It is shown through extensive EMTP simulations that the scheme is capable of finding the location of three phase faults, inter-phase faults and single-phase faults for fault resistances ranging from 0 - 1000 ohm on a radial distribution line with five sub-feeders. A new high speed FPGA based data acquisition system is developed suitable for capturing traveling wave fault data from a radial distribution line with the necessary fidelity for the proposed fault location algorithm. The data acquisition system is deployed on a Medium Voltage distribution line in the Santa Caterina region of Brazil. A branched communication network is constructed out of RG-58 coaxial cable and a Time Domain Reflectometry device is used to capture the reflection pattern under different fault conditions. The fault location algorithm is adapted to work with TDR a opposed to fault generated traveling waves. The location algorithm is capable of locating faults with resistance between 0 and 75 ohm up to three zones away from the injection point.

This work described in this thesis develops a computationally efficient approach to performing electromagnetic simulations in the presence of statistically defined uncertainties caused by either material inhomogeneities, or fabrication and placement tolerances. Comparisons are made with results from Monte Carlo simulations and a sequence of higher order approximation extensions is considered. There are two main techniques used to achieve the overall objective of this thesis namely: the Direct Solution Technique (DST) and the Unscented Transform (UT) method. The DST based on Taylor series approximations is intended to explicitly provide rapid approximate solutions that obviate the need for extremely slowly converging and time consuming Monte Carlo analysis of multiple simulations. The DST approach is useful in problems where sensitivity of system responses with respect to stochastic variables can be mathematically defined. The UT method is similar to the Monte Carlo method but makes use of a significantly smaller number of simulations. As the number of random variables considered increases, the UT procedure requires more simulations. The advantage of the UT method is that it is applicable to black-box models and can therefore be extended to different electromagnetic solvers. The case studies used in this thesis are developed using the Transmission Line Modelling (TLM) method. Both the DST and UT method were found to enhance the modelling of uncertainty in electromagnetic problems. The scopes of both methods are explored and observations made upon both the degree of problem complexity and the extent of stochastic variation permitted.