Dear All, Eros moves. In January of 2007 I decided to do research about Eros and his presence in architecture. I decided to do a thesis about LOVE. This thesis it is a story about me, since when you love architecture you give yourself completely to it. What you see in these pages, it's me: my life, my desires, my passion for architecture, my fears, my bad moments, my good moments, my joy--all of me. Desire in architecture seemed to me at that moment something with which I didn’t know how to start working. It was so abstract that, when considered, almost anything can be a desire, and maybe it is. But this thesis is a story of how desire opened for me an infinite world of imagination and wonder--how Eros made me love the drawing, the line, the color, the wall, the shadow, the material....the architecture. I have chosen to explore desire through the designing of a post office, theatre school, and retail shops. The site is in Washington DC, in between 7th and 8th streets SE, adjacent to Eastern Market. / Master of Architecture

Is it a dream came true for you to experience a Virtual Reality (VR) and be able to touch virtual objects and manipulate them with your bare hands? The recent growth of the Virtual Reality market resulted in an intensification of the development of the haptics gloves technology. The newly haptics gloves, Bebop gloves launched and commercialized recently which will use for this study. Earlier research has explored a range of haptics effects mainly on VR surgery or gaming. Yet, VR industrial training has gradually received attention in recent years. Creating multiple scenarios in the virtual scene is not only cost-effective but also increases safety and reduces training time. However, not many research studies have explored using haptic gloves in the VR industrial training environment. This study tries to complement earlier research by investigating usability and user performance using bebop vibration gloves in VR industrial training. The purposes were to provide a usability review of bebop gloves and explored the effect of haptics in VR industrial training. Three different haptics settings (Non-haptics, Partial haptics, and Full-haptics) were being set up. Eighteen users were then recruited to try randomly two haptics settings. Each user had to complete a five steps VR industrial training task while “thinking aloud”, followed by questionnaires and interviews after the task. The error and time recorded for each training step. These results confirmed several conclusions drawn in earlier research about how the haptics affect user performance in the VR environment, as well as how the behavior changes when using the haptics gloves in a VR environment. Last but not least the results also pointed to the importance of vibration haptics benefits in small-scale actions and provide the user with an interpersonal confirmation. / Är det en dröm som förverkligades för dig att uppleva en virtuell verklighet (VR) och kunna röra virtuella objekt och manipulera dem med bara händer? Den senaste tillväxten av marknaden för Virtual Reality resulterade i en intensifiering av utvecklingen av haptikhandskar-tekniken. De nyligen haptiska handskarna, Bebophandskar lanserade och kommersialiserades nyligen som kommer att användas för denna studie. Tidigare forskning har undersökt en rad haptiska effekter främst på VR-kirurgi eller spel. Ändå har VR-industriell utbildning gradvis fått uppmärksamhet under de senaste åren. Att skapa flera scenarier i den virtuella scenen är inte bara kostnadseffektivt utan ökar också säkerheten och minskar tiden. Men inte många forskningsstudier har undersökt användning av haptiska handskar i VR: s industriella utbildningsmiljö. Denna studie försöker komplettera tidigare forskning genom att undersöka användbarhet och användarprestanda med hjälp av bebop-vibrationshandskar i VR-industriutbildning. Syftena var att tillhandahålla en användbarhetsgranskning av bebop-handskar och utforska effekten av haptik i VR-industriutbildningen. Tre olika haptikinställningar (Non-haptics, Partial haptics och Full-haptics) inställdes. Atten användare rekryterades sedan för att testa slumpmässigt två haptikinställningar. Varje användare måste genomföra en femstegs VR-industriell träningsuppgift medan han ”tänker högt”, följt av frågeformulär och intervjuer efter uppgiften. Felet och tiden som registrerats för varje träningssteg. Dessa resultat bekräftade flera slutsatser som dragits i tidigare forskning om hur haptiken påverkar användarnas prestanda i VR-miljön, liksom hur beteendet förändras när man använder haptikhandskarna i en VR-miljö. Sist men inte minst pekade resultaten också på vikten av fördelar med vibrationshaptik i småskaliga åtgärder och ger användaren en interpersonell bekräftelse.

Thesis (PhD)--Stellenbosch University, 2004. / ENGLISH ABSTRACT: Healthcare workers (HCWs) wear latex gloves to protect themselves and their patients against the transmission of microbial, viral and bloodborne diseases. These individuals are primarily exposed to latex via cutaneous (direct contact) and mucocutaneous (inhalation of airborne allergens on glove powder) routes. Repeated exposure leads to the formation of circulating latex-specific IgE and subsequent sensitisation with varying clinical expression. The airconditioning system of the Tygerberg Hospital (TBH) complex was investigated for the presence of aerosolised cornstarch glove powder and proteins. Dust samples were collected from 14 areas with different levels of latex glove usage. Dust samples were spectrophotometrically compared to a calibration graph of pure glove powder. The detection of starch and proteins in all the dust samples confirmed the presence of glove powder and possibly airborne latex allergens in the airconditioning ducts. As expected, the high exposure areas showed the highest concentrations of both starch and proteins. It is possible that other proteins than latex were involved, but the confirmed high level of protein contamination should be a cause for concern. Correlation between starch and protein levels was highly significant (p<0.01) in all instances. A total of 500 questionnaires were circulated for completion by HCWs from TBH. The response rate was 69.8%. After considering specific inclusion criteria, a study group of 152 individuals was compiled (28 males, 124 females). All subjects had current latex exposure and suffered from at least three pre-defined symptoms. Serum was collected from all subjects and dermal fluid from 31 subjects. Total IgE and latex specific IgE analysis were done on all serum and dermal fluid samples. Latex-specific IgE was positive (>0.35 IU/ℓ) in 23 serum and six dermal fluid samples. Skin prick tests (SPTs)for latex were done on 59 subjects with negative serum latex-specific IgE and 34 had positive results. Twelve subjects with negative latex-specific IgE and latex SPTs underwent patch tests with the European Standard Series, a piece of latex glove and glove powder in petrolatum. Three subjects had positive results to one or more of these allergens. Western blot analysis for latex was done on all positive sera and dermal fluid collected from these subjects. Western blot analysis for latex proved to be more sensitive than the capRAST, because it was able to identify specific bands in samples with negative capRAST results. All subjects showed a band for Hev b 1, which has been confirmed as a powder-bound airborne allergen. Hev b 6.01 is associated with HCWs with cutaneous symptoms and this band was recognised by 81% of the subjects. These findings confirmed that airborne and cutaneous routes are the major routes of exposure in HCWs. According to their laboratory results, subjects were divided into the following subgroups and compared statistically: Group A (serum positive, n=23), Group B (SPT positive, n=34) and Group C (negative, n=25). Group D (withdrawn, n=70) could not be used for statistical comparisons, due to incomplete results. An overall latex allergy prevalence of 38% was found. Group A differed significantly from Group B and Group C for most clinical and special investigations. Group A and B were also combined to represent all subjects with positive results (Cohort AB). The Allergy Score and Class were highly significant when Cohort AB was compared to Group C. The selection of clinical symptoms was confirmed to be relevant and work-related deterioration on any of the symptoms should bear a high index of suspicion in the evaluation of latex allergy. Numerical indices and specific symptoms showed high positive predictive values and the Allergy Score produced statistical significance in the positive subgroups when compared to the negative subgroup. Paired statistical significance was confirmed between the Allergy Score and occupational exposure (number of years, hours and pairs per week). The areas with the highest occupational latex exposure in HCWs are the face and hands. Different occupations also have different levels of exposure and two subgroups of HCWs (16 laboratory technologists and 13 theatre staff) were investigated for sebum content on different facial areas and the palms and dorsal areas of both hands. Baseline measurements were done before putting on gloves. In 21 subjects follow up measurements were done following three to four hours of occupational exposure, but before washing their hands. Baseline and follow up values were compared for all the different anatomical regions. Levels on the forehead and cheeks increased over time, while the level on the nose decreased. All hand regions decreased significantly during occupational exposure, suggesting that glove powder contributes to dryness of the skin. In conclusion, the problem posed by latex allergy will not be solved overnight and will probably remain a major occupational hazard for years to come. It is currently not possible to avoid exposure to latex, but it is imperative to institute safety measures to prevent further sensitisation in predisposed individuals and manage those already affected. / AFRIKAANSE OPSOMMING: Gesondheidswerkers dra lateks handskoene om hulleself en hulle pasiënte te beskerm teen die oordrag van mikrobiale, virale en bloed-gedraagde siektes. Die lateks blootstelling vind hier hoofsaaklik plaas via kutane (direkte velkontak) en mukokutane (inaseming van lug-gedraagde allergene op hanskoen poeier) roetes. Herhaalde blootstelling veroorsaak sirkulerende lateksspesifieke IgE en sensitisasie met variërende kliniese beelde. Die lugreëlingstelsel van die Tygerberg hospitaalkompleks is ondersoek vir die teenwoordigheid van handskoenpoeier (stysel) en lateks proteïene. Stofmonsters is versamel in 14 areas wat verskillende blootstellingsvlakke verteenwoordig het. Die stofmonsters is spektrofotometries vergelyk met "n kalibrasiekurwe van suiwer hanskoenpoeier. Stysel en proteïene kon in al die stofmonsters aangetoon word en het die teenwoordigheid van handskoenpoeier en moontlike luggedraagde lateks proteïene in die lugreëlingstelsel bevestig. Soos verwag kon word, het die hoogste stysel en proteïen waardes in hoë blootstellingsareas voorgekom. Hoogs beduidende statistiese korrelasies (p<0.01) tussen die stysel en proteïenvlakke kon aangedui word in alle monsters. "n Totaal van 500 vraelyste is gesirkuleer vir voltooiing deur TBH gesondheidswerkers, waarvan 69.8% voltooide vraelyste terugontvang is. Na evaluering van insluitingskriteria, is "n studiegroep van 152 individue saamgestel (28 mans, 124 vrouens). Almal het huidige lateks blootstelling en ten minste drie het vooraf gedefinieerde simptome gerapporteer. Serum is van die hele groep versamel en dermale vog van 31 proefpersone. Totale IgE en lateks-spesifieke IgE vlakke is op alle serum en dermale vog bepaal. Positiewe resultate (>0.35 IU/ℓ) is verkry in 23 serum en ses dermaIe vog monsters. Velpriktoets vir lateks is op 59 proefpersone uitgevoer en 34 daarvan het positiewe resultate opgelewer. Twaalf proefpersone met negatiewe lateks-spesifieke IgE en velpriktoets resultate het kutane plaktoetse ondergaan met die Europese Standaard Reeks, "n stukkie lateks handskoen en handskoenpoeier in petrolatum. Drie proefpersone het positiewe resultate teen een of meer van die allergene gehad. Westerse kladanalise vir lateks is op alle positiewe serum gedoen, asook die dermale vogte van hierdie proefpersone. Westerse kladanalise vir lateks blyk baie meer sensitief te wees as die capRAST, aangesien dit spesifieke bande kon identifiseer in monsters capRAST resultate. Alle monsters het "n band getoon vir Hev b 1, "n poeier-gebinde, luggedraade allergeen. Hev b 6.01 is geassosieer met gesondheidswerkers met velsimptome en hierdie band is gevind in 81% van die monsters. Hierdie resultate bevestig dat die belangrikste blootstelling aan lateks in gesondheidswerkers deur die vel en inaseming plaasvind. Proefpersone is in die volgende drie groepe verdeel volgens laboratorium resultate en statisties vergelyk: Groep A (positiewe serum, n=23), Groep B (positiewe velpriktoetse, n=34) en Groep C (negatief, n=25). Groep D (onttrek, n=70) kon nie vir betekenisvolle statistiese vergelykings aangewend word nie, as gevolg van onvolledige resultate. 'n Finale lateks allergie prevalensie van 38% is gevind. Groep A het hoogs beduidend verskil van Groep B en C vir die meeste van die kliniese en spesiale laboratoriumondersoeke. Groep A en B is gekombineer om alle proefpersone in te sluit met positiewe resultate (Kohort AB). Die Allergie Telling en Klas van Kohort AB was hoogs beduidend in vergelyking met Groep C. Die gekose simptome is bevestig as relevant en enige werksverwante verergering van simptome moet met 'n hoë mate van agterdog bejeën word in lateks allergie. Numeriese indekse en spesifieke simptome het hoë positiewe voorspellingswaardes gelewer en die Allergie Telling was hoogs beduidend in die positiewe subgroep in vergelyking met die negatiewe subgroep. Gepaarde statistiese beduidenheid is ook gevind tussen die Allergie Telling en beroepsblootstelling (jare van blootstelling, uur en paar handskoene per week). Die meeste beroepsblootstelling aan lateks in gesondheidswerkers vind plaas op die hande en gesig. Verskillende beroepe het ook verskillende blootstellingsvlakke en two subgroepe gesondheidswerkers (16 laboratorium tegnoloë en 13 teater personeel) is ondersoek vir die sebumgehalte op veskillende areas van die gesig en hande. Basislynvlakke is gemeet voordat handskoene aangetrek is en in 21 gevalle is opvolgvlakke gemeet na drie tot vier uur beroepsblootstelling, maar voor die hande gewas is. Basislyn en opvolgvlakke is met mekaar vergelyk vir al die anatomiese areas. Die voorkop en wange het 'n toename in sebumgehalte getoon, terwyl dié van die neus afgeneem het. AI die areas op die hande toon 'n hoogs beduidende afname tydens beroepsblootstelling, wat impliseer dat hanskoenpoeier moontlik bydra tot droogheid van die vel. In samevatting, die lateks allergie probleem sal nie oornag opgelos word nie en sal waarskynlik 'n belangrike beroepsrisiko bly vir die aansienlike toekoms. Totale vermyding van lateks is tans onmoontlik en daarom is dit van uiterste belang om voorsorgmaatreëls in plek te stel om verdere sensitisasie in blootgestelde individue te verhoed en die wat reeds geaffekteer is, effektief te hanteer.

Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal.

Introdução: a utilização de luvas cirúrgicas estéreis é uma estratégia fundamental para a prevenção de infecção do sítio cirúrgico e para a proteção da equipe cirúrgica. Entretanto é comum a ocorrência de perfurações de luvas durante os procedimentos cirúrgicos as quais, em sua maioria, não são percebidas pelos profissionais. Objetivos: testar a associação entre a ocorrência de perfuração de luvas cirúrgicas e o número de cirurgiões em campo, o tempo de duração da cirurgia, o tipo de cirurgia, o tipo de abordagem cirúrgica e a especialidade cirúrgica. Materiais e Métodos: trata-se de um estudo de corte transversal realizado num hospital especializado em oncologia do interior paulista. A população do estudo foi composta por 3.966 luvas utilizadas em 359 cirurgias realizadas no referido hospital, no período de 01 de janeiro a 28 de fevereiro de 2018. A avaliação da integridade das luvas cirúrgicas foi realizada por meio de análise visual e da insuflação de líquido, conforme a norma EN 455-1. Os dados foram analisados por meio de estatística descritiva e pela técnica de regressão logística multivariada, utilizando-se o programa estatístico IBM SPSS Statistics versão 21. Resultados: Das 359 cirurgias analisadas, 145 (40,4%) cirurgias apresentaram luvas perfuradas. Das 3.966 luvas coletadas, 254 (6,4%) apresentaram perfuração. Do total de perfurações identificadas, 163 (64,2%) ocorreram na mão esquerda, atingiram o dedo indicador 94 (37,0%). As varáveis associadas à perfuração de luvas identificadas no modelo final foram cirurgias com tempo de duração acima de 120 minutos (OR: 3,06; IC 95%: 1,52 - 6,14) e cirurgias realizadas pelas especialidades da Ortopedia (OR: 4,40; IC95%: 2,36 - 8,20), do Tórax (OR: 3,28; IC95%: 1,75 - 6,17), da Urologia (OR: 2,97; IC95%: 1,53 - 5,76) e do Digestivo Baixo (OR: 2,35; IC95%: 1,22 - 4,54). Ressalta-se que as cirurgias realizadas por vídeo se constituíram num fator de proteção (OR: 0,35; IC95%: 0,22 - 0,56). Conclusão: o presente estudo confirmou a associação entre a perfuração de luvas e tempo de duração da cirurgia acima de 120 minutos e especialidades cirúrgica, além disso, as cirurgias realizadas por vídeo se constituíram como um fator de proteção. Acredita-se que os resultados obtidos poderão subsidiar a proposição de medidas de prevenção e consequentemente contribuir para a segurança dos pacientes e dos profissionais da área da saúde / Introduction: the use of sterile surgical gloves is a fundamental strategy for the prevention of infection of the surgical site and for the protection of the surgical team. However, perforated gloves are common during surgical procedures which, for the most part, are not perceived by professionals. Objective: to test the association between the occurrence of surgical glove perforation and the number of surgeons in the surgery, the duration of the surgery, the type of surgery, the type of surgical approach and the surgical specialty. Materials and Methods: this is a crosssectional study conducted at a specialized hospital in oncology in the state of São Paulo. The study population consisted of 3.966 gloves used in 359 surgeries performed at the referred hospital, from January 1 to February 28, 2018. The evaluation of surgical glove integrity was performed through visual analysis and fluid insufflation, in accordance with EN 455-1. Data were analyzed using descriptive statistics and the multivariate logistic regression technique using the IBM SPSS Statistics version 21 statistical program. Results: of the 359 surgeries analyzed, 145 (40,4%) surgeries had perforated gloves. Of the 3.966 gloves collected, 254 (6,4%) presented perforation. Of the total number of perforations identified, 163 (64,2%) occurred in the left hand, reaching the index finger 94 (37,0%). The variables associated with the perforation of gloves identified in the final model were surgeries with duration time over 120 minutes (OR: 3,06; 95% CI: 1,52 - 6,14) and surgeries performed by Orthopedics specialties (OR: 4,40; 95% CI: 2,36 - 8,20), Thorax (OR: 3.28; 95% CI:1.75 - 6.17), Urology (OR: 2,97; 95% CI: 1,53 - 5,76) and the Low Digestive (OR: 2.35; 95% CI: 1,22 - 4,54). It should be emphasized that the surgeries performed by video were constituted as a protection factor (OR: 0,35; 95% CI: 0,22 - 0,56). Conclusion: the present study confirmed the association between the perforation of gloves and the duration of surgery over 120 minutes and surgical specialties, besides that the surgeries performed by video were constituted as a protection factor. It is believed that the results obtained may support the proposal of preventive measures and consequently contribute to the safety of patients and health professionals

Gunshot primer residue (P-GSR) is released from the openings of a firearm when it is discharged12,13. P-GSR is made of microscopic particles that are considered characteristic of being derived from firearm ammunition when composed of barium (Ba), lead (Pb), and antimony (Sb) and have the correct morphology4. Morphology describes the shape of the P-GSR particle, which can be spherical, irregularly shaped, and must be non-crystalline. Forensic labs are commonly requested to test for the presence of P-GSR on evidential items, such as hands, clothing, vehicles, and gloves, in order to provide circumstantial evidence showing that they were, in some way, possibly involved with a shooting. Occasionally these evidential items are also expected to undergo fingerprint processing to potentially link someone to a crime. Latex gloves are often utilized in the commission of a crime with the impression that fingerprints cannot be left behind, however latent prints can often be developed on this non-porous material. Due to the evidential value of fingerprints and in order to ensure that potential prints are not damaged during P-GSR collection, latent print development is routinely performed first. Considering that P-GSR particles are easily dislodged, it is possible that some loss of P-GSR may occur during latent print processing. The purpose of this study was to evaluate the effect of processing a non-porous item for latent fingerprints on the subsequent recovery and detection of P-GSR. Latex gloves were worn during the discharge of either a pistol or a revolver and then processed for latent prints by undergoing cyanoacrylate fuming followed by either white powder or yellow dye. The latex gloves were then sampled for P-GSR using aluminum stubs containing an adhesive coating which were dabbed over the gloves until they loss their tackiness. The stubs were then carbon coated using a Denton Vacuum Desk IV in order to prevent charging in the analytical instrument. Utilizing a JEOL JSM-6460LV Scanning Electron Microscope (JEOL USA Inc., Peabody, MA coupled with an EDAX Apollo X Analyzer (EDAX Inc., Mahwah, NJ) and EDAX Genesis GSR Software, the stubs were processed for three-component particles characteristic of P-GSR. It was determined that P-GSR can still be recovered on latex gloves after undergoing latent print processing involving cyanoacrylate fuming followed by either white powder or yellow dye processing. Three-component particles were found on both the interior and exterior of the latex gloves after being processed for latent prints. On average, 33 P-GSR particles were found on the exterior of the gloves and four P-GSR particles were found on the interior of the gloves. Although significantly less were found on the interior of the gloves (<10), it is recommended that both sides of gloves be stubbed when collecting P-GSR for the greatest chances of collecting three-component particles if they are in fact present on a pair of gloves. Although more particles were found on the gloves that were not processed for latent prints, a sufficient number of particles (≥3 particles) were consistently found on the latex gloves after undergoing latent print processing to provide a positive P-GSR result according to the Massachusetts State Police Crime Lab guidelines for P-GSR analysis. Therefore, this research shows that latex gloves can first be processed for latent prints and then subsequently be processed for P-GSR effectively in order to try and obtain both forms of evidence for a case.

No description available.

Introduction: Asbestos has been employed in a myriad of industrial applications for more than a century. Of the 181 Mt of asbestos produced worldwide, over 31 Mt was consumed in the U.S. The production and consumption of this mineral eventually was found to cause asbestosis, lung cancer and mesothelioma. While the brunt of the human exposure to asbestos occurred in insulation work, many more workers in other jobs were expose to asbestos fibers. Very little is known about the potential exposure to asbestos in research labs. Goal: In order to investigate potential research lab work exposures, we simulated lab work with various asbestos-containing items commonly found in research laboratories: 6 wire gauze pads, 3 gloves, 3 beaker tongs, and 3 Transite boards. All samples were analyzed by Phase Contrast Microscopy and, when appropriate, by Transmission Electron Microscopy and Polarized Light Microscopy. Results: All tested items were confirmed by bulk sampling to have asbestos fibers in their composition. Exposures from the 7 wire gauze pads were significantly lower than the PEL and the excursion limit, the highest exposure concentration measuring 0.029 f/cc. For the 3 beaker tongs with asbestos sleeves, exposure was below the PEL for 2 of the 3, with one resulting in an exposure of 0.160 f/cc (8-h TWA = 0.01 f/cc). For the Transite boards had the highest exposures of all tested items, with a maximum concentration of 0.320 f/cc (8-h TWA = 0.02 f/cc). Conclusion: Asbestos exposure in our simulated research lab work was significantly lower than any of the historical exposures associated with asbestos-related disease including cancer.

The SNO+ experiment is a multipurpose liquid scintillator detector whose rst goal is to measure neutrinoless double beta decay. This thesis describes two important components: simulations to optimize the time window for the prompt peak of an optical calibration source, the \laserball" and the search for gloves to handle calibration sources while maintaining stringent background conditions. Non-direct light found in laserball runs creates challenges for optical calibration. By changing the time pro le from the standard 4ns to an asymmetric pro le of +2 4 ns this contribution of non-direct light can be reduced up to 45%. Gloves provide an access point to manipulate calibration sources during deployment inside the detector and as barrier to 222Rn, a known background to the experiment. However, typical glove materials are found to permeate large amounts radon. Through a careful selection process the material Silver Shield was chosen for use in SNO+ with a permeation rate of 1:1 10 6 radon atoms/hour.

Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal