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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.
341

The Return: Understanding why Black Women Choose to "Go Natural"

Thompson, Joy Janetta 08 June 2018 (has links)
The purpose of this study is to analyze and understand why some Black women in Greensboro, North Carolina have made the decision to wear their hair naturally, in its original kinky, curly, non-straightened form. I’ve chosen this topic because “in our society, long straight hair has generally been considered the gold standard for attractiveness” (Rosette & Dumas, 2007, p. 410) and by deviating from that gold standard, Black women are affected, personally and politically. In my perspective, it is important to understand why a woman would opt to make this choice, knowing the potential backlash she faces (i.e. losing her job, rejection in a romantic relationship, or school suspension). To facilitate this purpose, the guiding research inquiries included 10 questions about the woman’s hair journey, at different stages of her life: before perming, while perming, and going natural. In speaking with 10 women from three different generations, I found that the process of going natural is at once complex and simple, is simultaneously gradual and instant, both terrifying and liberating. Ultimately, I learned that even though various factors play a part in this process, “going natural” is a decision mostly directed and determined by the woman standing in the mirror. / MS / The purpose of this study is to understand why some Black women in Greensboro, North Carolina have made the decision to wear their hair naturally, in its original kinky, curly, non-straightened form. I chose this topic because our society has historically and overwhelmingly considered long, straight hair the pinnacle of female attractiveness. In choosing to wear one's hair natural, Black women are affected in many ways (personally, professionally, and politically). In my perspective, it is important to understand why a Black woman would make this choice, knowing the potential consequences that she will face. In this study, I interviewed 10 women from three different generations. Moreover, I used 10 questions about the woman’s hair journey, at different stages of her life: before perming, while perming, and going natural, in order to gather information for this work. In speaking with these women, I found that this experience is both complex and simple. Overall, I learned that this liberating decision is primarily led and guided by the woman in the mirror.
342

ACF7 DEFICIENCY DOES NOT IMPAIR AUDITORY HAIR CELL DEVELOPMENT OR HEARING FUNCTION

Gilbert, Benjamin Lawrence 21 June 2021 (has links)
No description available.
343

The status and influence of marketing research on the economic performance of hair saloons in the Bophirima region

Amoakoh, Edmund Owusu January 2012 (has links)
Thesis (M. Tech. ( Business administration )) - Central University of technology, Free State, 2012 / Proliferation of the hair salon business in the Bophirima region has led to intense competition for customers and this can have unfortunate consequences for hair salon’s competitiveness hence survival and economic performance. The only choice left for hair salons in the words of owner/managers who were informally interviewed is to obtain accurate information on market trends and customer preferences so as to tailor products and services to meet customer preferences. From a strategic management perspective, it makes perfect sense that in the highly competitive arena that hair salons in the Bophirima find themselves, research on industry environment to obtain accurate information on market trends and customer preferences so as to tailor products and services that meet customer preferences is a must if they are to prosper. In other words, hair salons in the Bophirima region need to conduct marketing research if they must prosper. Conceptually, it is argued in this study that market research will reveal variables such as market demand, market opportunities, market threats, etc. which if scientifically analysed can produce information that can aid management in making informed decision that can lead to superior business performance. Unfortunately, there is the perception among the few hair salon operators informally interviewed in the Bophirima region that for small businesses such as hair salons, engaging in marketing research will be too expensive, cumbersome, and time consuming hence unnecessary. However, this perception may not be true as normative assertions and research evidence elsewhere suggests that for service organisations, regardless of size, marketing research leads to superior performance. The purpose of this study was to determine the status of marketing research within the hair salons in the Bophirima region and the impact that hair salon’s engagement in generally accepted (conventional) elements of marketing research activities have on the economic performance (as measured by profitability). Analysis of data obtained from 118 owner managers suggest that marketing research may not be something they engage in although they are very much aware of the business benefits of engaging in marketing research. The findings also suggest possible positive link between marketing research activity and profitability. Details of the research as well as conclusions and recommendations are presented and discussed in the report that follows.
344

Détermination du béryllium dans les cheveux humains non exposés, les poils et les os de souris exposées à des poussières de béryllium

Drolet-Vives, Katherine January 2009 (has links)
Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal.
345

Caracterização clínica e laboratorial do acometimento dos folículos velos e da epiderme da face, pescoço e região anterossuperior do tórax na alopecia frontal fibrosante / Clinical and laboratorial findings related to vellus follicle involvement and epidermal changes on the face, neck and antero-superior chest area in frontal fibrosing alopecia

Jorge, Aline Roberta Campos Donati 25 September 2018 (has links)
INTRODUÇÃO: A alopecia frontal fibrosante (AFF) é uma alopecia cicatricial primária linfocítica descrita em 1994, cuja prevalência vem aumentando rapidamente em todo mundo. A participação de um fator desencadeante ambiental na patogênese da doença é aventada e uma pesquisa recente encontrou uma associação da doença com o uso de cosméticos faciais. Alterações da pele e dos pelos da face e do corpo têm sido descritas em pacientes com AFF nos últimos anos e alguns estudos sugerem que essas alterações possam preceder a perda dos cabelos, indicando o início da doença fora do couro cabeludo. OBJETIVO: Estudar o acometimento da pele e dos pelos na face, pescoço e região anterossuperior do tórax em uma série de pacientes com AFF. MATERIAL E MÉTODOS: A pesquisa constou de três partes. Na primeira parte foram investigadas evidências clínicas e dermatoscópicas do acometimento da pele e dos pelos fora do couro cabeludo em 37 pacientes. A segunda parte do estudo constou da avaliação da espessura epidérmica em biópsias realizadas na face, pescoço e região anterossuperior do tórax de 20 pacientes com AFF e 20 controles. Na terceira parte do estudo foi utilizada microscopia confocal de reflectância a laser \"in vivo\" para comparar a espessura epidérmica e a densidade folicular da pele da linha de implantação frontal de 21 pacientes a de 21 controles. RESULTADOS: O acometimento dos pelos velos da face não se restringiu a linha de implantação fronto-temporal e variou de 30 a 97% dependendo da região estudada, sendo mais frequente quanto mais próximo da linha de implantação frontal do couro cabeludo. Pápulas da face foram encontradas em 60% dos pacientes estudados, localizadas principalmente na região temporal (11/37 casos), seguida pela região malar (10/37 casos) e mento (6/37 casos). Metade dos pacientes (51%) apresentaram lesões hipercrômicas compatíveis com o diagnóstico de líquen plano pigmentoso associado a AFF, acometendo face (18/19 casos), pescoço (7/19 casos) e região anterossuperior do tórax (4/19 casos). As lesões hipercrômicas mostraram-se mais raras em pacientes com fototipo baixo (p=0,022). A espessura da epiderme dos pacientes de AFF não apresentou diferença quando comparada com a dos controles independente da metodologia utilizada. Densidade folicular menor que 3,56 folículos/mm2 na linha de implantação frontal ao exame de microscopia confocal apresentou 90,5% de sensibilidade e 90,5% de especificidade para o diagnóstico de AFF e implicou num risco 90,24 (IC95% 9,5-1132; p < 0,001) vezes maior de ter a doença. CONCLUSÕES: O acometimento dos pelos velos da face é frequente e pode ser detectado de forma rápida e não invasiva pela dermatoscopia. As pápulas da face estão presentes em 60% dos pacientes. As lesões de liquen plano pigmentoso são menos frequentes em pacientes com fototipos baixos. A epiderme dos pacientes de AFF não apresenta uma menor espessura quando comparada com controles pareados por gênero, idade, fototipo e local examinado. A densidade folicular da linha de implantação frontal \"in vivo\" medida através do exame de MCRL apresenta ótima acurácia para o diagnóstico de AFF / INTRODUCTION: Frontal fibrosing alopecia (FFA) is a lymphocytic primary cicatricial alopecia first described in 1994. Its incidence has been rapidly rising worldwide, possibly related to an environmental trigger. The use of facial leave-on creams has been associated with the disease in a recent publication. Vellus follicles involvement and epidermal changes outside the scalp region have been described in FFA patients in the past few years and seem to be an early event in the disease course. OBJECTIVES: To evaluate vellus follicle and epidermal involvement over the facial, neck and upper chest skin in a series of FFA patients. METHODS: This study consisted of three parts. In the first part, prevalence of clinical and dermoscopic findings related to vellus follicle and epidermal involvement in 37 FFA patients was investigated. In part two, epidermal thickness in skin biopsies from 20 FFA patients was compared with 20 control biopsies from the same body site. In the last part, epidermal thickness and follicular density over the frontal hairline were investigated in a group of 21 FFA patients and 21 gender, age and phototype matched controls through \"in vivo\" reflectance confocal microscopy. RESULTS: Vellus follicle involvement in FFA is not restricted to frontal hairline and varies from 30 to 97% according to facial region, with greater frequencies observed on the upper face region. Facial papules were detected in 60% of our patients, most frequently over the temples (11/37 patients), malar (10/37 patients) or chin (6/37 patients) area. Half of our patients (51%) presented hyperchromic lesions compatible with FFA associated lichen planus pigmentosus. Hyperchromic lesions were observed over the face (18/19 patients), but also over the neck (7/19 patients) and upper chest (4/19 patients) skin. Hyperchromic lesions were less frequent in patients with lighter phototypes (p=0.022). Epidermal thickness of FFA patients did not differ from controls both in histology and \"in vivo\" evaluation. Frontal hairline follicular density lower than 3.56 follicles/mm2 on confocal microscopy examination presented 90.5% sensitivity, 90.5% specificity and OR = 90.24 (CI95% 9.5-1132; p < 0.001) for FFA diagnosis. CONCLUSIONS: Facial vellus follicle involvement is frequent and can be easily detected through dermoscopy in most patients. Facial papules are observed in 60% of our patients. Lichen planus pigmentosus lesions are less frequently observed in fair skin patients. Epidermal thinning is not observed in FFA patients when adequate control group is included. Frontal hairline follicular density measured by confocal microscopy has high accuracy for FFA diagnosis
346

Caracterização clínica e laboratorial do acometimento dos folículos velos e da epiderme da face, pescoço e região anterossuperior do tórax na alopecia frontal fibrosante / Clinical and laboratorial findings related to vellus follicle involvement and epidermal changes on the face, neck and antero-superior chest area in frontal fibrosing alopecia

Aline Roberta Campos Donati Jorge 25 September 2018 (has links)
INTRODUÇÃO: A alopecia frontal fibrosante (AFF) é uma alopecia cicatricial primária linfocítica descrita em 1994, cuja prevalência vem aumentando rapidamente em todo mundo. A participação de um fator desencadeante ambiental na patogênese da doença é aventada e uma pesquisa recente encontrou uma associação da doença com o uso de cosméticos faciais. Alterações da pele e dos pelos da face e do corpo têm sido descritas em pacientes com AFF nos últimos anos e alguns estudos sugerem que essas alterações possam preceder a perda dos cabelos, indicando o início da doença fora do couro cabeludo. OBJETIVO: Estudar o acometimento da pele e dos pelos na face, pescoço e região anterossuperior do tórax em uma série de pacientes com AFF. MATERIAL E MÉTODOS: A pesquisa constou de três partes. Na primeira parte foram investigadas evidências clínicas e dermatoscópicas do acometimento da pele e dos pelos fora do couro cabeludo em 37 pacientes. A segunda parte do estudo constou da avaliação da espessura epidérmica em biópsias realizadas na face, pescoço e região anterossuperior do tórax de 20 pacientes com AFF e 20 controles. Na terceira parte do estudo foi utilizada microscopia confocal de reflectância a laser \"in vivo\" para comparar a espessura epidérmica e a densidade folicular da pele da linha de implantação frontal de 21 pacientes a de 21 controles. RESULTADOS: O acometimento dos pelos velos da face não se restringiu a linha de implantação fronto-temporal e variou de 30 a 97% dependendo da região estudada, sendo mais frequente quanto mais próximo da linha de implantação frontal do couro cabeludo. Pápulas da face foram encontradas em 60% dos pacientes estudados, localizadas principalmente na região temporal (11/37 casos), seguida pela região malar (10/37 casos) e mento (6/37 casos). Metade dos pacientes (51%) apresentaram lesões hipercrômicas compatíveis com o diagnóstico de líquen plano pigmentoso associado a AFF, acometendo face (18/19 casos), pescoço (7/19 casos) e região anterossuperior do tórax (4/19 casos). As lesões hipercrômicas mostraram-se mais raras em pacientes com fototipo baixo (p=0,022). A espessura da epiderme dos pacientes de AFF não apresentou diferença quando comparada com a dos controles independente da metodologia utilizada. Densidade folicular menor que 3,56 folículos/mm2 na linha de implantação frontal ao exame de microscopia confocal apresentou 90,5% de sensibilidade e 90,5% de especificidade para o diagnóstico de AFF e implicou num risco 90,24 (IC95% 9,5-1132; p < 0,001) vezes maior de ter a doença. CONCLUSÕES: O acometimento dos pelos velos da face é frequente e pode ser detectado de forma rápida e não invasiva pela dermatoscopia. As pápulas da face estão presentes em 60% dos pacientes. As lesões de liquen plano pigmentoso são menos frequentes em pacientes com fototipos baixos. A epiderme dos pacientes de AFF não apresenta uma menor espessura quando comparada com controles pareados por gênero, idade, fototipo e local examinado. A densidade folicular da linha de implantação frontal \"in vivo\" medida através do exame de MCRL apresenta ótima acurácia para o diagnóstico de AFF / INTRODUCTION: Frontal fibrosing alopecia (FFA) is a lymphocytic primary cicatricial alopecia first described in 1994. Its incidence has been rapidly rising worldwide, possibly related to an environmental trigger. The use of facial leave-on creams has been associated with the disease in a recent publication. Vellus follicles involvement and epidermal changes outside the scalp region have been described in FFA patients in the past few years and seem to be an early event in the disease course. OBJECTIVES: To evaluate vellus follicle and epidermal involvement over the facial, neck and upper chest skin in a series of FFA patients. METHODS: This study consisted of three parts. In the first part, prevalence of clinical and dermoscopic findings related to vellus follicle and epidermal involvement in 37 FFA patients was investigated. In part two, epidermal thickness in skin biopsies from 20 FFA patients was compared with 20 control biopsies from the same body site. In the last part, epidermal thickness and follicular density over the frontal hairline were investigated in a group of 21 FFA patients and 21 gender, age and phototype matched controls through \"in vivo\" reflectance confocal microscopy. RESULTS: Vellus follicle involvement in FFA is not restricted to frontal hairline and varies from 30 to 97% according to facial region, with greater frequencies observed on the upper face region. Facial papules were detected in 60% of our patients, most frequently over the temples (11/37 patients), malar (10/37 patients) or chin (6/37 patients) area. Half of our patients (51%) presented hyperchromic lesions compatible with FFA associated lichen planus pigmentosus. Hyperchromic lesions were observed over the face (18/19 patients), but also over the neck (7/19 patients) and upper chest (4/19 patients) skin. Hyperchromic lesions were less frequent in patients with lighter phototypes (p=0.022). Epidermal thickness of FFA patients did not differ from controls both in histology and \"in vivo\" evaluation. Frontal hairline follicular density lower than 3.56 follicles/mm2 on confocal microscopy examination presented 90.5% sensitivity, 90.5% specificity and OR = 90.24 (CI95% 9.5-1132; p < 0.001) for FFA diagnosis. CONCLUSIONS: Facial vellus follicle involvement is frequent and can be easily detected through dermoscopy in most patients. Facial papules are observed in 60% of our patients. Lichen planus pigmentosus lesions are less frequently observed in fair skin patients. Epidermal thinning is not observed in FFA patients when adequate control group is included. Frontal hairline follicular density measured by confocal microscopy has high accuracy for FFA diagnosis
347

Nya frisörers utmaningar : - Ser nyexaminerade frisörer håret eller kunden i helhet som arbetsmaterial?

Fogelström, Jennie January 2012 (has links)
Frisörers arbete med preparat som påverkar hårets kemiska uppbyggnad ökar och därmed även felbehandlingar på salonger. Detta skapar frågor kring från gymnasieutbildningen nyexaminerade frisörers kunskaper kring hur frisörers arbetsmaterial, det vill säga kunden, fungerar i samverkan med den kemiska behandling som utförs. Forskning kring hår finns då produktionen av produkter är enorm, men frågan är om frisörerna som användare av produkterna sitter på kunskapen kring håret och om de använder den kunskapen när de arbetar med kunden. Fokus som använts i studien är grundade på tre områden. Dessa presenteras som: Kund som helhet eller bara hår? Undervisningens styrkor och svagheter samt Yrkesutövandets förutsättningar. Resultaten visar respondenters erfarenheter i arbetets fokusområden utifrån utbildningens inriktning. De påvisar skillnader i sin uppfattning kring förutsättningarna för kemiska behandlingar av kundens hår som skiljer sig beroende på vilken skola de gått på, men påvisar även skillnader efter hur praktikplatsers förhållningssätt kring hårets beskaffenhet. Upplevelser i undervisningen påvisar vad de anser vara bra respektive dålig lärostil. Utöver det är framtidstron för ett arbete i yrket inte glasklar. Diskussionen sker utifrån respondenternas syn på fokusområdena vägt mot branschens och skolans perspektiv. / The use of chemical substances that negatively affect the biological composition of hair has increased, leading to more mistreatments in salons and hair studios. This has, consequently, led to questions arising from educators within the field regarding the knowledge levels of newly-trained hairdressers/stylists relative to the potential reactions of customers’ hair and the increasing use of preparative substances. Research and development conducted in the general field of hair-care is plentiful due to the huge level of production within the industry. Questions remain unanswered, however, in terms of whether those using the products within the profession have the relevant knowledge and/or if this knowledge is applied practically. The focus of this study is threefold: The customer; a whole (an entirety) or just hair The strengths and weaknesses of teaching within this field The pre-requisites for practicing the profession  Results indicate respondents’ experiences in the relevant areas dependent upon educational focus points. Furthermore, results show disparities in the understanding of pre-requisites concerning the chemical treatment of customer’s hair dependent on the school attended. A differentiation can also be seen practically, dependent on the variety of approaches and attitudes towards hair within salons offering practical placements. Experiences within the processes of learning show views of what are considered good or bad teaching styles. Belief in the employment potential within the industry is a debatable issue. The discussion has a comparative format; results herein are placed in contrast to the industry and in relation to the perspective of the school/educational institutions.
348

Détermination du béryllium dans les cheveux humains non exposés, les poils et les os de souris exposées à des poussières de béryllium

Drolet-Vives, Katherine January 2009 (has links)
Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal
349

K⁺ channels in the inner ear : electrophysiological and molecular studies /

Liang, Guihua, January 2005 (has links)
Diss. (sammanfattning) Stockholm : Karol. inst., 2005. / Härtill 5 uppsatser.
350

Hairdressers - hand eczema, hair dyes and hand protection /

Lind, Marie-Louise, January 2006 (has links)
Diss. (sammanfattning) Stockholm : Karolinska institutet, 2006. / Härtill 4 uppsatser.

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