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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

FTM faces : morphological and morphometric changes in facial pattern in female-to-male transsexual people

MacKenzie, Stenton January 2015 (has links)
This research documents for the first time changes in the facial appearance that occur in female-to-male transsexuals (FTMs) with exogenous testosterone therapy and oophorectomy. Method: 25 FTM transsexual faces were assessed morphologically using comparative facial analysis, and morphometrically using 2D pre-transition photographs and 3D post-transition facial models (FASTSCAN Scorpion laser scanner & Geomagic Freeform - a 3D modeling software with Phantom haptic feedback device). Subjects: The average age of the post-transition subjects was 39 years; all subjects had been taking testosterone for a minimum of 3 years (range 3.3 � 21.1 years), with an average duration of 8.6 years. Objectives: To describe the qualitative and quantitative transformation from a female-appearing to a male-appearing face, and to identify predictable patterns of change due to testosterone treatment. Results: 24% of subjects were classified as male-appearing pre-transition, and 96% post-transition; 96% had beard shadow/facial hair and 52% demonstrated male pattern balding. The majority of subjects (44%) became wider in the face overall, and facial width increases were the most frequently recorded change. 18 subjects demonstrated a narrower nasal width; 55.6% of those by between 7 - 17% of their original dimensions. Conclusions: Testosterone virilises natal female adult faces. One new consistent pattern of change was shown to be predictable: the nose will narrow at the alae. It is hypothesised that this is a result of facial fat re-deposition.
2

Developing a Model of Transmasculine Identity

Saltzburg, Nicole L. 23 June 2010 (has links)
Traditional psychotherapy with transgender clients has focused on helping gender dysphoric individuals assume an "opposite" gender role. However, recently, there have been calls for trans-positive therapy focusing on the exploration and affirmation of alternative gender identifications. The majority of the research on transgender identity has been conducted with male-to-female (MTF) identified, or transfeminine, individuals. Comparatively little attention has been given to the experience of female-to-male (FTM) identified, or transmasculine, individuals. The primary goal of this study was to explore constructs and identify underlying themes that transmasculine people use in constructing their gender identities in order to develop a structural model of transmasculine identity. Broadly speaking, results showed that transmasculine identity may be conceptualized on a continuum from an essentialist binary perspective to a constructivist non-binary perspective. This is reflected in the language the individual uses to self-identify - including identity labels, proper names and pronouns. Individuals define, experience, and embody transmasculine identities differently depending on a number of inter-related constructs including: (1) current stage of identity development and past transmasculine identity development events, (2) conceptions of masculinity and femininity, (3) context, and (4) sexuality. Further, if one of these constructs shifts it usually influences the others. Implications for theory, practice, and future research directions are discussed.
3

Hybrid Membranes for Light Gas Separations

Liu, Ting 2012 May 1900 (has links)
Membrane separations provide a potentially attractive technology over conventional processes due to their advantages, such as low capital cost and energy consumption. The goal of this thesis is to design hybrid membranes that facilitate specific gas separations, especially olefin/paraffin separations. This thesis focuses on the designing dendrimer-based hybrid membranes on mesoporous alumina for reverse-selective separations, synthesizing Cu(I)-dendrimer hybrid membrane to facilitate olefin/paraffin separations, particularly ethylene/methane separation, and investigating the influence of solvent, stabilizing ligands on facilitated transport membrane. Reverse-selective gas separations have attracted considerable attention in removing the heavier/larger molecules from gas mixtures. In this study, dendrimer-based chemistry was proved to be an effective method by altering dendrimer structures and generations. G6-PIP, G4-AMP and G3-XDA are capable to fill the alumina mesopores and slight selectivity are observed. Facilitated transport membranes were made to increase the olefin/paraffin selectivity based on their chemical interaction with olefin molecules. Two approaches were explored, the first was to combine facilitator Cu(I) with dendrimer hybrid membrane to increase olefin permeance and olefin/paraffin selectivity simultaneously, and second was to facilitate transport membrane functionality by altering solvents and stabilizing ligands. Promising results were found by these two approaches, which were: 1) olefin/paraffin selectivity slightly increased by introducing facilitator Cu(I), 2) the interaction between Cu(I) and dendrimer functional groups are better known.
4

The potential of biodegradation on 1, 1, 1-trichloro-2, 2-bis (p-chlorophenyl) ethane, based upon co-metabolism of indigenous bacteria

Hellebrandt, Aniko January 2010 (has links)
The purpose of this project is to evaluate the potential of a bioreactor system to degrade DDT based upon co-metabolism of indigenous bacteria. The study was performed with soil samples spiked with four different concentrations of DDT. The prepared sludge was circulated at a steady rate of revolution per minute in bioreactors with added M8 solution, cabbage leaf extract and molasses. The experiment was carried out for 7 days and chemical analysis and toxicity testing was accomplished at the beginning and the end of the experiment. The chemical analysis was essential to support the conclusions of the ecotoxicology tests. Ecotoxicology test was performed for the assessment of the toxicity (in terms of bioavailable measures) of the sludge samples, and was carried out with the Ostracodtoxkit sediment toxicity test, with the freshwater benthic crustacean test species Heterocypris incongruens. As part of the project the potential of the bioremediation method phytoremediation have been studied. Brassica Juncea seeds have been cultivated in the soil spiked with four different concentrations of DDT for one month, under stable circumstances. Growth of the plants was measured at the end of the experiment, and a chemical analysis was carried out. A thorough literature review was carried out for both the bioreactor and the phytoremediation experiments in order to obtain information about methods and theoretical background. The ecotoxicology tests and the chemical analysis showed increased p,p’- DDT concentrations in the bioreactors I. and II. at the end of the 7 day experiment, the reasons of which are not known, and require further studies. / -
5

The pure rotational spectrum of the ScO (X2Σ+) radical

Halfen, D.T., Min, J., Ziurys, L.M. 01 1900 (has links)
The rotational spectrum of ScO (X-2 Sigma(+)) has been measured in the gas phase in the frequency range 30-493 GHz using a combination of Fourier transform microwave/millimeter-wave (FTM/mmW) and submillimeter direct absorption methods. This work is the first pure rotational study of this radical. Both the ground vibrational and v=1 states were observed. ScO was created from the reaction of metal vapor, produced either by a laser ablation source or a Broida-type oven, and N2O, in the former case heavily diluted in argon. Extensive hyperfine structure was observed in the FTM/mmW data, although the spin-rotation splitting was found to be small (similar to 3 MHz). In the mm-wave spectra, however, the fine and hyperfine structure was blended together, resulting in broad, single lines for a given transition N + 1 <- N. The data were analyzed in a combined fit using the very accurate hyperfine measurements of Childs and Steimle (1988), employing a Hund's case b Hamiltonian, and an improved set of rotational and centrifugal distortion constants were determined. These measurements improve the accuracy of predicted frequencies for astronomical searches by 14-18 MHz, or 16-20 km/s, in the 1 mm region - a difference of half to a full linewidth for certain interstellar sources. This work also demonstrates the capabilities of the FTM/mmW spectrometer at 61 GHz.
6

Génération de motifs à haute résolution sans optique: Application à la caractérisation spatiale des détecteurs infrarouge

di Mambro, Emmanuel 13 January 2005 (has links) (PDF)
Les progrès en microtechnologie durant la dernière décennie ont abouti à la réalisation de plans focaux infrarouge (PFIR) de grand format, intégrant une importante densité de détecteurs (ou pixels) au centimètre carré. La caractérisation de ces composants sophistiqués devient alors un véritable défi, en particulier la mesure de la réponse spatiale des détecteurs, décrite par la fonction de transfert de modulation (FTM). Cette mesure nécessite la projection de mires parfaitement connues qui couvrent toute la surface du PFIR et contiennent des détails sub-pixels. Depuis plusieurs années, une technique originale de mesure de FTM est à l'étude à l'ONERA. L'idée initiale était d'utiliser la propriété d'auto-imagerie d'un réseau en transmission éclairé par une onde plane quasi-monochromatique, appelée effet Talbot. Un premier banc de test a été développé et a permis d'effectuer des mesures sur des PFIR fonctionnant dans la bande [1-2,5 µm] et [3-5µm]. Pour le test des composants fonctionnant dans la bande des hautes longueurs d'onde (8-12 µm), la technique se heurte à des limitations physiques (appelées effets non-paraxiaux) et des solutions alternatives ont été proposées, basées sur une classe particulière de faisceaux auto-imageants, appelés les tableaux nondiffractants. L'objet de la thèse est d'étudier de manière quantitative et rigoureuse ces effets non-paraxiaux et de développer les solutions proposées précédemment. En particulier, des techniques originales permettant de générer des tableaux nondiffractants haute-résolution (c'est-à-dire contenant des motifs de taille proche de la longueur d'onde) sont étudiées théoriquement et expérimentalement. Ces techniques exploitent l'éclairage panchromatique du réseau ainsi qu'un nouveau type de réseaux auto-imageants appelés réseaux continûment auto-imageants. Enfin, on montre que pour les mesures de FTM à différentes longueurs d'onde, une somme incohérente d'auto-images monochromatiques enregistrées à différentes distances permet de construire des motifs analogues à ceux obtenus avec un éclairage panchromatique.
7

Clinical considerations in speech therapy for female-to-male transgender populations

Maurer, Elizabeth Hobbs 09 October 2013 (has links)
Purpose: The purposes of the present study consisted of primary, secondary, and tertiary purposes: 1) to determine what factors that can be addressed in speech therapy are the most important for female-to-male (FtM) transgender individuals in passing as their true gender, 2) to determine what factors may contribute to these individuals seeking speech therapy services and to the importance that they assign to speech therapy as part of the transition process, and 3) to determine awareness of this population in regards to the availability and scope of speech therapy services relative to transitioning or passing as their true gender. Method: A 38-item survey was developed to address these research questions and a link to the online survey was distributed via email to various listservs, organizations, and personal contacts to assist in the electronic distribution of the survey link. The responses of the final participant pool of 63 respondents were evaluated. Results: Overall, the participants ranked voice characteristics as the most important for passing followed by nonverbal communication and social language use. These broad categories rankings are generally supported by the existing literature. Within category rankings revealed rankings that are in accord with the existing literature, others that oppose the existing literature, and others that have not been explored in the literature. The following factors stood out as possibly contributing to how important FtMs find speech therapy as facilitating their ability to live as their true gender: desire to pass, satisfaction with hormone related pitch changes, current overall presentation, and whether speech/language contribute to instances of not passing. Factors that appear to possibly contribute to how likely FtMs are to have sought speech therapy include: satisfaction with hormone related pitch changes, voice prior to transition, and if aspects of speech and language contribute to instances of not passing. Overall, FtMs have little awareness regarding speech therapy as part of the transition process, particularly for FtMs. / text
8

Smartphone Based Indoor Positioning Using Wi-Fi Round Trip Time and IMU Sensors / Smartphone-baserad inomhuspositionering med Wi-Fi Round-Trip Time och IMU-sensorer

Aaro, Gustav January 2020 (has links)
While GPS long has been an industry standard for localization of an entity or person anywhere in the world, it loses much of its accuracy and value when used indoors. To enable services such as indoor navigation, other methods must be used. A new standard of the Wi-Fi protocol, IEEE 802.11mc (Wi-Fi RTT), enables distance estimation between the transmitter and the receiver based on the Round-Trip Time (RTT) delay of the signal. Using these distance estimations and the known locations of the transmitting Access Points (APs), an estimation of the receiver’s location can be determined. In this thesis, a smartphone Wi-Fi RTT based Indoor Positioning System (IPS) is presented using an Unscented Kalman Filter (UKF). The UKF using only RTT based distance estimations as input, is established as a baseline implementation. Two extensions are then presented to improve the positioning performance; 1) a dead reckoning algorithm using smartphone sensors part of the Inertial Measurement Unit (IMU) as an additional input to the UKF, and 2) a method to detect and adjust distance measurements that have been made in Non-Line-of-Sight (NLoS) conditions. The implemented IPS is evaluated in an office environment in both favorable situations (plenty of Line-of-Sight conditions) and sub-optimal situations (dominant NLoS conditions). Using both extensions, meter level accuracy is achieved in both cases as well as a 90th percentile error of less than 2 meters.
9

The Transitioning Couple: Sexual Relationship and Sexual Orientation Experiences of Transgender Men and their Cisgender Female Partners

Pugliese, Meghan E. 06 June 2013 (has links)
Sex is a biologically based classification, determining whether an individual is male or female. Comparatively, gender is a socially designed construct, which varies between cultures and prescribes what it means to be a man or a woman. Western culture suggests all individuals fall neatly into one of these two groups. Females are expected to display feminine characteristics such as being nurturers, while males are expected to display masculine characteristics such as being providers. There exists, however, a population of individuals who identify themselves as "transgender," meaning, they feel inconsistency between their internal sense of gender identity and their birth-assigned biological sex and/or assigned gender role. These individuals wish to separate from their birth-assigned gender role and express through physical modification their true gender identity. In the context of romantic relationships, it was once thought that disclosure of one partner's transgender identity meant inevitable demise of the relationship. Clinical guidelines offered advice to the transgender partner, suggesting they abandon their family, change their identity, and begin a new life elsewhere (Lev, 2004). More recently, however, clinical experiences suggest the possibility that many transgender people can maintain healthy and sustainable relationships. This study sought to understand the impact of gender transition on the sexual relationship and sexual orientation of female-to-male (FTM) transgender individuals and their cisgender female partners. / Master of Science
10

Performances orientées système de détecteurs infrarouge à super-réseaux en cryostat opérationnel / Figures of merits at a system level of superlattice infrared Integrated Detector Dewar Cooler Assembly.

Nghiem Xuan, Jean 10 December 2018 (has links)
De nombreuses filières de détecteurs coexistent dans le domaine infrarouge (longueur d’onde entre 1µm et 50µm). Chacune possède ses avantages et ses inconvénients (coût, performance, compacité …). Certaines filières sont bien établies et disponibles commercialement alors que d’autres sont encore émergentes. La filière super-réseaux (SR) est une filière récemment commercialisée. Elle repose sur l’empilement périodique de semiconducteurs (InAs/GaSb), donnant un détecteur quantique capable de détecter des longueurs d’ondes comprises entre 1 et 32µm typiquement.L’objectif de cette thèse est d’évaluer le potentiel de la filière super-réseaux en cryostat opérationnel à l’aide de fonctions de mérite orientées système qui tiennent compte du packaging entourant le détecteur. Nous nous concentrerons sur la Fonction de Transfert de Modulation (FTM), décrivant la résolution du système ainsi que sur le rapport Bruit Spatial Fixe Résiduel sur Bruit Temporel (BSFR/BT), décrivant la stabilité temporelle de la qualité image.Ce travail a ainsi permis de confirmer deux promesses des SR en moyen infrarouge : d’une part, la grande stabilité temporelle de la qualité image et d’autre part le faible nombre de pixels clignotants. Par ailleurs, les bancs de mesures de FTM et de stabilité temporelle développés au cours de la thèse pourront être adaptés pour caractériser d’autres filières dans les mêmes conditions de mesure. / Many photodetector technologies coexist in the infrared domain (wavelength between 1µm and 50µm). Each of them comes with its assets and drawbacks (cost, performance, compactness, etc.). Some technologies are well established and available while others are still under development. The superlattice technology (SL) recently made its way into the market. It is based on the periodic stack of semiconductors (InAs/GaSb), giving a quantum detector capable of detecting wavelengths between 1 and 32µm typically. Like other quantum infrared detectors, superlattice photodetectors need to be cooled at cryogenic temperature to maximize their electro-optical performance.The objective of this thesis is to evaluate the potential of the SLSL in IDDCA using system-oriented figures of merit, which also take into account the packaging of the detector. The present work is focused on the Modulation Transfer Function, which describes the system resolution and the ratio Residual Fixed Pattern Noise over Temporal Noise (RPFN/TN), which evaluates the temporal stability of the image quality.This present work successfully confirmed two promises of the SL in midwave infrared : the excellent stability of the image quality and the low flickering pixel count. Besides, the experimental benches developped (MTF and temporal stability alike) can be adapted to perform similar measurements with other technologies.

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