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Phillips, Sion Robert. "Functional variants of the human melanocortin 1 receptor." Thesis, University of Newcastle Upon Tyne, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369786.
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Thomas, David Granville. "The hormonal control of hair growth in the Red Deer (Cervus Elaphus)." Thesis, University College London (University of London), 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301129.
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Silverman, Jennifer Mary. "Experimental Measurements of Vestibular Hair Bundle Stiffness in the Red Ear Slider Turtle Utricle." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/9705.
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The ear is the organ used for hearing and maintaining equilibrium. In the inner ear, the vestibular system is responsible for the sense of balance. The main organs of the vestibular system are the semicircular canals, the saccule, and the utricle. Within each of the vestibular organs, sensory receptors in the form of hair cells detect motion and send a message to the brain for interpretation. Hair cells found in different parts of the inner ear are structurally different and are mechanically specialized to perform different functions. In this study, the linear and torsional stiffnesses were measured for hair cells located in the red ear slider turtle utricle. The system used to measure the stiffnesses was composed of a glass whisker (attached to a pipette) used to produce a force on the tip of the bundle, an extrinsic Fabry-Perot interferometer (EFPI) to measure the displacement of the pipette, and a photoelectronic motion transducer (PMT) to measure the displacement of the bundle. Using the measured values of whisker stiffness, whisker displacement, and bundle displacement, the stiffness of the bundle was calculated using statics. For each bundle tested, the location of the bundle was determined by measuring its position from a landmark in the utricle, the line of polarity reversal, characterized by a 180o change in direction of the hair bundles. Stiffness results showed that the linear stiffness of a bundle increased in the area surrounding the line of polarity reversal, otherwise referred to as the striolar region (average linear stiffness of 2.27 E-04 N/m). The average linear stiffness value of bundles found lateral to the striolar region was 6.30 E-05 N/m and in the region medial to the striolar region was 1.16 E-04 N/m. A wide range of linear stiffnesses were found in hair cells medial to the striolar region. There was no correlation found between the torsional stiffness of a bundle and its position and the height of a bundle and its linear or torsional stiffness. As the force applied to a hair bundle was increased, the measured linear stiffness of the bundle also increased.Master of Science
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Caslini, C. "WILD RED DEER (CERVUS ELAPHUS, LINNAEUS, 1758) POPULATIONS STATUS ASSESSMENT: NOVEL METHODS USING HAIR." Doctoral thesis, Università degli Studi di Milano, 2013. http://hdl.handle.net/2434/218528.
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The assessment of free-ranging wild red deer (Cervus elaphus) populations status is an important tool in wildlife management, because of, in some areas, this species reaches high densities, which can increase the occurrence of road accidents, of damages to agriculture and forest regeneration, and, not last, can reduce the fitness of the species itself. In fact, high density populations compared to low density ones usually show lower levels of fertility, higher prevalence of disease, higher mortality, worst general body conditions and nutritional status. Nevertheless, collecting samples to assess free-ranging populations status is often difficult. Hair is a safe, readily available, and easy to store and transport matrix, and hair sampling does not involve pain or infection risk for the animals. Furthermore, hair assay provides a long-term endocrine profile. Thus, this matrix could be useful to assess long term cortisol accumulation and other hormonal substrates of social trends. Furthermore, hair can be an important indicator of accumulation of environmental pollutants in ecological, clinical and hygienic studies. In this thesis three studies were carried out, concerning respectively the extraction of cortisol, progesterone (P4) and arsenic from hair. We show how the analysis of hormones or other substances in hair constitutes a highly promising and reliable method for assessment of substances secretion over extended periods of time in free-ranging red deer. In particular, our findings suggest that i) hair cortisol concentration provides a good index of long-term HPA axis activity and allostatic load; ii) hair progesterone concentration, in combination with other sexual hormones concentrations in hair and biometric measures, may contribute in the future to develop a reliable and easy pregnancy test for free-ranging red deer; iii) hair arsenic concentration could be analysed, not only in order to assess wild populations status, but also to control wild animals contamination, in biomonitoring investigations or in health programs. In conclusion, the assessment of hormones and micro-elements in the hair seems to be an interesting tool for future wild species management.
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Zemaryalai, Khatera. "Investigations into the roles of potassium channels in hair growth : studies confirming the presence of several ATP-sensitive potassium (K+ATP) channels in hair follicles and exploring their mechanism of action using molecular biological, cell culture, organ culture and proteomic approaches." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/4461.
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Hair disorders cause significant distress. The main, but limited, treatment for hair loss is minoxidil, an ATP-sensitive potassium (KATP) channel opener whose mechanism of stimulation is unclear. The regulatory component of KATP channels has three forms: SUR1, SUR2A and SUR2B which all respond to different molecules. Minoxidil only opens SUR2B channels, though SUR1 and SUR2B are present in human hair follicles. To expand our understanding, the red deer hair follicle model was used initially. Deer follicles expressed the same KATP channel genes as human follicles when growing (anagen), but no channels were detected in resting follicles. This reinforces the importance of KATP channels in active hair growth and the usefulness of the deer model. To assess whether SUR1 KATP channels are actually involved in human hair growth, the effects of a selective SUR1 channel opener, NNC55-9216, on scalp follicle growth in organ culture was examined. NNC55-9216 stimulated anagen; its effect was augmented by minoxidil. This creates the potential for more effective pharmaceuticals to treat hair loss via SUR1 channels, either alone or in combination with minoxidil. The dermal papilla plays a crucial regulatory role in hair follicle activity determining the type of hair produced. Minoxidil had no effect on dermal papilla cell proliferation, but altered the profile of proteins produced when assessed by proteomics. Further research into the roles of KATP channels and greater understanding of the significance of these protein changes should enhance our knowledge of hair biology and help the development of new, improved therapies for hair pathologies.
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Horst, Jennifer Lynne. "The making of the documentary film Women in Red." Thesis, University of North Texas, 2008. https://digital.library.unt.edu/ark:/67531/metadc9088/.
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Though the remnants of a stereotype created over two millennia ago still thrive in American popular culture today, redheaded women are enjoying a more positive role in society than they have ever seen before. Women in Red explores the experience of the redheaded woman in America today by examining how the stereotypes have affected a small group of them, how these women relate to the stereotypes, and why, given the verisimilitude of the stereotype, a non-redheaded woman would embrace such an identity with the simple act of dying her hair red. This is the story behind the experience that is Women in Red.
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Robinson, Kathleen Clare. "Cutaneous Biology and Endogenous Opioids: How the Skin Modulates Pain and Addiction." Thesis, Harvard University, 2013. http://dissertations.umi.com/gsas.harvard:11215.
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The Proopiomelanocortin gene, (POMC), produces many biologically active peptides including the endogenous opioid, β-endorphin, and the melanocortins: α-Melanocyte Stimulating Hormone, (αMSH), γMSH, βMSH and Adrenocorticotropic Hormone, (ACTH). βendorphin is released by the brain in response to stress or injury and is a potent analgesic. Melanocortins are well known for regulating pigmentation, metabolism, and cortisol levels. Additionally, opioids and melanocortins are known to have opposing actions in several settings including the regulation of pain and metabolism. The Melanocyte Stimulating Hormones are expressed in the skin where they bind the Melanocortin 1 Receptor on melanocytes and promote pigmentation. It has been reported that β-endorphin is also produced in the skin, however it was not believed to have a central effect. In this thesis I show that expression of these peptides in the skin is reflected in blood levels and affects nociception and behavior.
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Davis, Julian Ly. "A Computational Study into the Effect of Structure and Orientation of the Red Ear Slider Turtle Utricle on Hair Bundle Stimulus." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/29926.
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The vestibular system consists of several organs that contribute to ones sense of balance. One set of organs, otoconial organs, have been shown to respond to linear acceleration (1949). Hair bundles (and hair cells), which are the mechano-electric transducers found within otoconial organs, respond to displacement of the overlying otoconial membrane (OM). Structure, position and orientation of the OM within the head may influence the stimulus of hair bundles by changing the deformation characteristics of the OM. Therefore, studying the deformation characteristics of the OM with finite element models presents a unique advantage: the ability to study how different variables may influence the deformation of the OM.
Previous OM models have ignored complicated OM geometry in favor of single degree of freedom (De Vries 1951)or distributed parameter models (Grant et al. 1984; Grant and Cotton 1990; Grant et al. 1994). Additionally, OMs have been modeled considering three dimensional geometry (Benser et al. 1993; Kondrachuk 2000; 2001a), however OM layer thicknesses were assumed to be constant. Further, little research has investigated the effect of position and orientation of otoconial organs on the deformation of the OM (Curthoys et al. 1999), due to natural movement of the head.
The effect of structure, position and orientation of the utricle of a red ear slider turtle on the stimulation of hair bundles in the OM is investigated here. Using confocal images, a finite element model of the utricle OM is constructed considering its full 3D geometry and varying OM layer thickness. How specific geometric variables, which are missing from other OM models, effect the deformation of the utricle OM is studied. Next, since hair bundles are part of the structure of the OM, their contribution to the deformation of the utricular OM is quantified. Then, using computed tomography of a turtle head and high speed video of turtle feeding strikes, acceleration at the utricle during natural motion is estimated. Finally, the effects of orientation of the utricle in the head on the stimulus of hair bundles within the organ is investigated.
In summary, a model and methods are developed through which deformation of the turtle utricle OM through natural movements of the head may be studied. Variables that may contribute to utricle OM deformation are investigated. Utricle OM geometry, hair bundles, position and orientation all play a role in utricle OM deflection and therefore hair bundle stimulus. Their effects are quantified and their roles are discussed in this dissertation.Ph. D.
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Droll, Brock A. "Local Anesthetic Efficacy of the Inferior Alveolar Nerve Block in Red-haired Females." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1316623943.
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Zanoni, Thalita Boldrin. "Avaliação do perfil de citotoxicidade, mutagenicidade e genotoxicidade dos corantes Basic Red 51, Basic Yellow 57 e P-Fenilenodiamina usados na tintura de cabelo em células da pele." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/60/60134/tde-31102014-144039/.
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O processo de coloração de cabelos é um dos métodos de tintura mais antigos. No século XIX, iniciou-se a produção de corantes sintéticos, a partir do desenvolvimento da pfenilenodiamina (PPD). Os corantes de cabelo são classificados de acordo com seu mecanismo de ação. Os corantes permanentes são classificados por mecanismos oxidativos, enquanto os corantes diretos colorem a fibra capilar por mecanismos não oxidativos. A investigação sobre os possíveis danos á saúde humana, que podem ser resultantes da exposição de corantes de cabelos, têm sido um tema de enorme desafio para a comunidade cientifica. Particularmente, devido à enorme discrepância dos estudos epidemiológicos e estudos que empregam metodologias in vitro. Neste trabalho, foram investigadas a capacidade citotóxica de um composto representante de cada classe de tinturas de cabelo, um corante temporário (Basic Yellow 57 (BY57), um semi-temporário (Basic Red 51(BR51) e um ingrediente permanente p-fenilinodiamina (PPD) em linhagens de células de pele humana. As linhagens normais da pele humana estudadas foram os queratinócitos imortalizados humanos (HaCaT) e fibroblastos primários, utilizou-se também melanoma SK-Mel-103. Posteriormente, após caracterização do corante mais tóxico, foi investigado o tipo de morte celular, as possíveis alterações destes compostos no ciclo celular, a capacidade de geração de espécies reativas de oxigênio (EROs) e aplicação em cultura tridimensional de pele artificial. Posteriormente, foi avaliada a capacidade de cada corante em induzir estresse oxidativo em queratinócitos humanos (HaCaT), que são a primeira via de exposição de corantes de cabelos. Em seguida, o corante elegido mais tóxico foi aplicado em pele humana provenientes de cirurgia. Finalmente, o potencial de mutagenicidade dos corantes BY57 e BR51 foram avaliados.The process involving hair dyes is one of the oldest methods of coloring. The use of synthetic hair dyes started in the nineteenth century, after the development of p-phenylenodiamine (PPD). The hair dyes are classified according to their mechanism of action. The permanent hair dyes are classified by oxidative mechanisms, while direct dyes color the hair fiber by non-oxidative mechanisms. Research regarding the potential damage of hair dyes to human health has been an enormous challenge for the scientific community. Particularly due to the large discrepancy of epidemiological studies involving in vitro methodologies. In this study, we evaluated the cytotoxic potential of a compound representative from each of the class of hair dyes, a temporary dye (Basic Yellow 57 (BY57), a semi temporary (Basic Red 51 (BR51) and a permanent hair dyes p-phenylenodiamine (PPD) in human skin cells. The studied skin cell lines where, immortalized human keratinocytes (HaCaT) primary fibroblasts, we also used melanoma SK-Mel-103. Subsequently, after characterization of the most toxic dye, we investigated specific mechanisms of cell death, changes in cell cycle and the ability to generate reactive oxygen species (ROS) followed by the evaluation of three-dimensional artificial skin. In addition, we assessed the ability of each dye in inducing oxidative stress in immortalized human keratinocytes (HaCaT) this is the primary route of exposure of hair dyes. Then, the most toxic compound was tested in human skin explants. Finally the mutagenic potential of the dyes BY57 and BR51 were evaluated.
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Corrêa, Gláucia Tinoco [UNESP]. "Determinação eletroanalítica de corantes de cabelos temporários em água, tintura comercial e fio de cabelo usando eletrodo compósito e partículas magnéticas modificadas com carbolixatos." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/151577.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Corantes de cabelo, provenientes principalmente da tintura comercial de cabelo em salões de beleza, quando não convenientemente descartados, podem gerar efluentes de difícil tratamento. Além disso, a análise de corante de cabelo em fios de cabelo tingidos, poderia favorecer informações úteis para análise forense. Em virtude de alto consumo de corantes de cabelo, que podem ser encontrados na forma de tinturas permanente, semipermantes e temporárias, com diferentes estruturas e comportamento físico-químico, a demanda por métodos analíticos sensíveis e robustos para sua quantificação é altamente pertinente. Diante disso, o presente trabalho descreve a construção de sensores eletroquímicos para quantificação de corantes de cabelo do tipo temporário, pois são classe de corantes facilmente removidos do cabelo e, consequentemente, podem ser liberados para o meio ambiente. O sensor eletroquímico consiste no desenvolvimento de um eletrodo compósito com partículas magnéticas modificadas como grupos carboxílicos (CFMP) para determinação dos corantes basic brown 16 (BB16), basic red 51 (BR51) e basic yellow 57 (BY57) em amostras de extratos de fios de cabelos, amostras comercias de tintura temporária, água de lavagem, amostras de água de rio e de torneira. Os três corantes apresentam grupos azos como cromóforos. No presente trabalho, investigou-se a oxidação de aminas e hidroxilas presentes como grupos auxocromos nos corantes. Os resultados mostraram que a oxidação do grupo funcional nos corantes sobre o eletrodo compósito modificados por grupos carboxílicos pode ocorrer em potenciais de 0,44 V, 0,86 V e 0,65, respectivamente para os corantes BB16, BR51 e BY57 e a corrente de pico aumenta significativamente em relação ao eletrodo sem modificação. A interação entre corante + CFMP foi comprovada por espectroscopia de UV/Vis e FTIR. Foram construídas curvas analíticas para os corantes BB16, BR51 e BY57, usando as condições otimizadas na técnica de voltametria de onda quadrada (VOQ): frequência de aplicação dos pulsos (f) = 30 s-1, amplitude de pulsos (a) = 50 mV e incremento de varredura (ΔEs) = 2 mV para os corantes. Relações lineares foram obtidas nos intervalos de 2,0 x 10-7 mol L-1 a 9,0 x 10-7 mol L-1, 1,5 x 10-6 mol L-1 a 5,5 x 10-5 mol L-1, 2,0 x 10-7 mol L-1 a 1,2 x 10-7 mol L-1 para os corantes BB16, BR51 e BY57, respectivamente. Foram obtidos limites de detecção de 1,01 x 10-8 mol L-1, 1,19 x 10-7 mol L-1 e 2,89 x 10-7 mol L-1 para os corantes BB16, BR51 e BY57, respectivamente. O método foi aplicado em amostras de extratos de fios de cabelo, água de lavagem, água de torneira e formulações comerciais. A determinação simultânea dos corantes BB16, BR51 e BY57 foi também proposto usando o método descrito e otimizado. O método foi aplicado em amostras de água de torneira e água de rio com recuperações de aproximadamente 100% e em amostra da tintura de cabelo comercial (COLOR EXPRESS (Vermelho intenso). O método eletroquímico foi comparado com o método de referência usando cromatografia líquida de alta eficiência com detector de arranjo de diodo (HPLC/DAD).
Hair dyes, mainly coming from commercial hair colorants in beauty salons, when not properly discarded, can generate effluents that are difficult to treat. In addition, hair dye analysis in dyed hair strands could be used as useful information for forensic analysis. Due to the high consumption of hair dyes, which can be found in the form of permanent, semipermanent and temporary dye, with different structures and physicochemical behavior, the demand for sensitive and robust analytical methods for their quantification is highly relevant. Therefore, the present work describes the construction of electrochemical sensors for the quantification of hair dyes of the temporary type, because they are class of dyes easily removed from the hair and, consequently, are released in great quantity for the environment. The electrochemical sensor consists of the development of a composite electrode using modified magnetic particles with carboxylic groups (CFMP) to determine the dyes basic brown 16 (BB16), basic red 51 (BR51), and basic yellow 57 (BY57) in samples of yarn extracts Hair samples, commercial samples of temporary tincture, wash water, samples of river water and tap water. The three dyes analyzed have azide groups as chromophores. In the present work, the oxidation of amines and hydroxyls present as auxochromic groups in the dyes was investigated. The results showed that the oxidation of the functional group in the dyes on the composite electrode modified by carboxylic groups can occur in Ea = 0.44 V, Ea = 0.86 V and Ea = 0.65, respectively for the dyes BB16, BR51, and BY57 and the peak current increases significantly with respect to the electrode without modification. The interaction between dye + CFMP was confirmed by UV/Vis and FTIR spectroscopy. Analytical curves for the BB16, BR51, and BY57 dyes were constructed using the optimized conditions in the square wave voltammetry (SWV) technique: pulse frequency (f) = 30 s-1, pulse amplitude (a) = 50 mV and scanning increment (ΔEs) = 2 mV for the dyes. Linear relationships were obtained at intervals of 2.0 x 10-7 mol L-1 to 9.0 x 10-7 mol L-1, 1.5 x 10-6 mol L-1 at 5.5 x 10-5 mol L-1, 2.0 x 10-7 mol L-1 to 1.2 x 10-7 mol L-1 for the dyes BB16, BR51, and BY57, in this order, using the SWV technique. Detection limits of 1.01 x 10-8 mol L-1, 1.19 x 10-7 mol L-1, 2.89 x 10-7 mol L-1 were obtained for the dyes BB16, BR51, and BY57, respectively. The method was applied to hair strands, wash water, tap water, and commercial formulation samples. The simultaneous determination of the dyes BB16, BR51, and BY57 was also proposed using the method described and optimized. The simultaneous determination of the dyes BB16, BR51 and, BY57 was also proposed using the method described and optimized. The method was applied to tap water and river water samples with approximately 100% recoveries and commercial hair dye sample (COLOR EXPRESS®). The electrochemical method was compared with the reference method using high performance liquid chromatography with diode arrangement detector (HPLC/DAD).
FAPESP: 2013/21542-6
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Dennis, Brittney. "Going natural african american women and their hair." Honors in the Major Thesis, University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/541.
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The study seeks to gain a better understanding of the term "going natural" in regards to women with natural African American hair. The study also seeks to understand natural hair and reclaiming a positive perspective of acceptance and natural appearance. The study will give light to what it is to have natural hair in present day and calls upon the experience of the Black woman on her journey with her hair and her past.B.A.
Bachelors
Sciences
Sociology
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Stout, Breanna. "Short term effects of annual ryegrass, red clover and hairy vetch cover crops on various indicators of soil health." Thesis, Kansas State University, 2014. http://hdl.handle.net/2097/18716.
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Master of ScienceDepartment of Biological and Agricultural Engineering
Philip L. Barnes
The world’s population has passed 7 billion and is expected grow to more alarming numbers by the year 2050. The increase in human life on the planet ushers the need to responsibly and sustainably grow more food. In order to meet the demand necessary, it is crucial that soil remains healthy and crop yields continue to increase in efficiency. Irresponsible or ill-informed practices can lead to depleted resources and degradation of fertile soils that may limit a producers’ ability to sustainably grow food. Cover crops are a tool that can be used to address issues the modern producer may face. Cover crops have been shown to increase cash crop productivity, improve soil health by improving soil physical and chemical properties as well as providing protection from soil erosion runoff or nutrient leaching. A study was conducted in 2014 to examine the short term effects associated with cover cropping systems. The effects of ryegrass, red clover and a cover crop cocktail (mixture of ryegrass, red clover and hairy vetch) compared to bare tilled and bare control plots were studied. The five treatments were replicated three times in a completely randomized study and analyzed. Soil physical health indicators such as bulk density and porosity were calculated. Soil and cover crop nutrient use, as well as, soil moisture content data was collected and analyzed using excel and ANOVA statistical procedures. In the short term, the study found that there was only statistically significant differences between cover cropping regimens, tilled and control plots in regards to biomass production and biomass nutrient concentrations (α=0.05). The cocktail mix provided more biomass, N and P than the ryegrass and clover plots alone. Observable differences in cover crop volumetric soil moisture and water used between plots demonstrated that cover crops utilize soil moisture in the short term, which must be considered in areas experiencing water stress. Although more long-term data is needed to truly quantify how cover crops effect various aspects of soil health, this study demonstrated how cover crops have the potential for providing numerous benefits such as increased erosion control, lower reliance on anthropogenically created nutrients and the reduction of weeds. Overall the benefits associated with cover crops are still being researched and while adoption of cover cropping systems has been slow, a push towards agricultural sustainability while increasing food production will increase the amount of producers utilizing cover crops in the coming years.
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Billger, Rebecca. "Har du hört talas om RED-S? : Enkätundersökning av kunskaper om Relative Energy Deficiency in Sport inom svensk truppgymnastik." Thesis, Gymnastik- och idrottshögskolan, GIH, Institutionen för idrotts- och hälsovetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:gih:diva-6160.
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Syfte och frågeställningar Studien syfte var att undersöka kunskapen om RED-S bland tränare inom svensk truppgymnastik och få en översikt om tränarna kände till Svenska Gymnastikförbundets eller Internationella Olympiska Kommitténs åtgärdsplan för identifiering, behandling och återgång till idrottande. Detta undersöktes med följande frågeställningar: 1) ”Hur mycket kunskap om RED-S har dagens tränare inom truppgymnastik?” 2) ”Skiljer tränares kunskaper åt beroende på kön, division och erfarenhet i år?” och 3) ”Har tränarnas förening en åtgärdsplan för RED-S?”. Metod En digital enkät baserad på liknande studier och IOC’s rekommendationer, skickades ut till både en sluten Facebookgrupp och via mail till föreningar på subelitnivå. Enkäten bestod av 28 frågor där de första åtta frågorna riktade sig mot tränarnas karaktärsdrag och de följande tjugo frågorna riktade sig mot kunskaper kring RED-S enligt IOC’s rekommendationer. All data analyserades i Google Excel och via SPSS. För att avgöra kunskapsnivån bland tränarna skapades ett poängsystem för frågorna om RED-S medan en icke parametriskt T-test genomfördes för att upptäcka eventuella kunskapsskillnader mellan gruppfördelningarna kön, division och erfarenhet. Resultat Inga tränare följde en åtgärdsplan för RED-S och ingen kände till Gymnastikförbundets eller IOC’s åtgärdsplan för RED-S. Det fanns inga kunskapsskillnader mellan gruppfördelningarna och utifrån resultaten är tränarnas kunskaper högre i frågor om återgång och behandling, men lägre i frågor om identifiering och grundläggande kunskaper. Av 35 deltagande var det endast 20% som tidigare hört talas om RED-S. Slutsats Denna studie upptäckte att det fanns kunskaper om RED-S men inte tillräckligt för att tränare skulle kunna hjälpa gymnaster som är utsatta eller löper risk för RED-S. Däremot var intresset att lära sig mer om ämnet högt bland deltagarna. På grund av bristande deltagande är studien inte representativ för svenska trupptränare på subelitnivå och kräver fler studier för att fastställa resultaten.Aim The aim of the study was to investigate how much knowledge Swedish teamgym coaches have about the syndrome called RED-S. The study was also used to gather an overview of how many teamgym coaches that follow the action plan made to identify, treat and return to play, by either the Swedish gymnastics association or the International Olympic Committee. To reach the aim, three questions of the issue were made: 1) ”How much knowledge does teamgym coaches have about RED-S?” 2) ”Is there any difference between the coaches knowledge based on their gender, division or experience?” och 3) ”Does the coaches union have an action plan for RED-S?”. Method A digital survey based on similar studies and the recommendations by IOC, was shared on a private Facebook platform and also by email to unions competing in the sub-elite series. The survey included 28 questions where the first eight focused on the characteristics of the coach, while the next twenty questions were related to RED-S based on the recommendations from IOC. All data was analysed with Google Excel and run by SPSS. A point-system was created to determine the coaches knowledge of RED-S, while a non-parametric T-test was used to discover any differences between the coaches based on their characteristics; gender, division and experience. Result No coaches followed an action plan or were acknowledged about the action plan made by either the Swedish gymnastics association or IOC. There were no differences in knowledge based on the coaches characteristics and according to the results, the coaches had a higher knowledge with questions related to return to play and treatment, but lower in questions related to identification and basic information. Only 20% of the participants had ever heard of the syndrom RED-S before. Conclusion This study discovered that the coaches have some knowledge of RED-S, but not enough to be able to help gymnasts that have or are at risk to develop RED-S. There was a high interest among the coaches to learn more of the subject, but because of few participants these results won’t be able to represent Swedish teamgym coaches in the sub-elite. More studies needs to determine the results.
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Alnasser, Mais. "PHASE-SHIFTING HAAR WAVELETS FOR IMAGE-BASED RENDERING APPLICATIONS." Doctoral diss., University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4181.
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In this thesis, we establish the underlying research background necessary for tackling the problem of phase-shifting in the wavelet transform domain. Solving this problem is the key to reducing the redundancy and huge storage requirement in Image-Based Rendering (IBR) applications, which utilize wavelets. Image-based methods for rendering of dynamic glossy objects do not truly scale to all possible frequencies and high sampling rates without trading storage, glossiness, or computational time, while varying both lighting and viewpoint. This is due to the fact that current approaches are limited to precomputed radiance transfer (PRT), which is prohibitively expensive in terms of memory requirements when both lighting and viewpoint variation are required together with high sampling rates for high frequency lighting of glossy material. At the root of the above problem is the lack of a closed-form run-time solution to the nontrivial problem of rotating wavelets, which we solve in this thesis. We specifically target Haar wavelets, which provide the most efficient solution to solving the tripleproduct integral, which in turn is fundamental to solving the environment lighting problem. The problem is divided into three main steps, each of which provides several key theoretical contributions. First, we derive closed-form expressions for linear phase-shifting in the Haar domain for one-dimensional signals, which can be generalized to N-dimensional signals due to separability. Second, we derive closed-form expressions for linear phase-shifting for two-dimensional signals that are projected using the non-separable Haar transform. For both cases, we show that the coefficients of the shifted data can be computed solely by using the coefficients of the original data. We also derive closed-form expressions for non-integer shifts, which has not been reported before. As an application example of these results, we apply the new formulae to image shifting, rotation and interpolation, and demonstrate the superiority of the proposed solutions to existing methods. In the third step, we establish a solution for non-linear phase-shifting of two-dimensional non-separable Haar-transformed signals, which is directly applicable to the original problem of image-based rendering. Our solution is the first attempt to provide an analytic solution to the difficult problem of rotating wavelets in the transform domain.Ph.D.
School of Electrical Engineering and Computer Science
Engineering and Computer Science
Computer Science PhD
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Christiansson, Anette, and Malin Karlsson. "Ren hud : En litteraturstudie om hur omvårdnadsåtgärden hudförberedelse har betydelse för postoperativa sårinfektioner." Thesis, Högskolan i Halmstad, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-28512.
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Postoperative site infections are the second most common health care associated infection in Sweden. Surgical procedures can lead to postoperative site infection causing great suffer for the patient and an extended care time with an increased cost as a result. In preparation for surgery, it is important that the skin is well prepared with antiseptics to decrease the risk of postoperative site infection. The purpose with this study was to shed light upon the skin preparation before surgery and its significance to postoperative site infection. Ten scientific articles have been scrutinized and compiled and two themes have been identified – the preoperative and the intraoperative skin preparation. All in all, difference could be spotted in the number of washes and how these had been preformed before the surgery. Similarities could be spotted in the hair shortening procedure and the alcohol added in selected disinfectant, influences the probability for decrease in postoperative surgical site infection. The result from this study shows that more research is needed regarding how the skin shall be prepared before surgery to reduce the number of postoperative site infections.
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Burke, Theresa Sydney. "Diets of bats in West Virginia." Huntington, WV : [Marshall University Libraries], 2002. http://www.marshall.edu/etd/descript.asp?ref=196.
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Thesis (M.S.)--Marshall University, 2002.Title from document title page. Document formatted into pages; contains vi, 50 p. with illustrations and maps. Includes bibliographical references (p. 22-26).
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Bui, Duc Viet. "Étude du risque d'inondation en aval du Delta du Fleuve Rouge en utilisant la télédétection et les SIG le cas du district de Bac Hung Hai." Thèse, Université de Sherbrooke, 2008. http://savoirs.usherbrooke.ca/handle/11143/2769.
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The Bac Hung Hai zone is the greatest basin in the Red River Delta in Vietnam and also one of the most densely populated regions of the planet. It is mainly a rural region and its economy is dominated by agriculture. In the context of frequent and larger floods in the Bac Hung Hai zone, causing deep socio-economical consequences, the focus of this study is to establish cartography of the high risk areas for flooding in the Bac Hung Hai region using remote sensing and GIS to assist land management. The preparation of a map describing land management in this region is more complicated because parcels for farming are very small and not homogeneous. A consistent and precise map of land use is essential for studies of flooding. The secondary objective is to improve the land use map. To this effect, a classification has been applied to the combination of the spectral bands and textures (TM and ETM[indice supérieur +]) of Landsat and a radar image (ERS). The addition of this information to the spectral bands increases the accuracy of classification by 1% to 4%, according to the dates selected. Additionally, in the study zone where there are few days without clouds, a problem related to the optical satellite image is the cloud cover. Then, the use of radar images will provide ground information for areas hidden by clouds where spectral images are not sufficient. To reach these goals, we have determined the main biophysical considerations that influence flooding. Then, these considerations have been combined in a multi-criteria analysis to evaluate the risks of flooding in the entire basin area. The results show that high to very high risks affect 47% of the area studied and that the south-east region, center, and north-east present the greatest risk.
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Gustafsson, Tina, and Maria Hellberg. "Regler = ordning och reda? : Vad har förhållningssättet till klassrumsregler för betydelse för ordningen i klassrummet?" Thesis, Linköping University, Department of Thematic Studies, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-3919.
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Vårt syfte med denna uppsats är att synliggöra vad pedagogens agerande i fråga om regler har för betydelse för ordningen i klassrummet.
Arbetet bygger på observationer av sju pedagoger i klassrumsmiljö samt intervjuer med fyra av dessa pedagoger. Av det vi såg och av de svar vi fick kunde vi dela upp pedagogerna i tre kategorier, Konsekvent utan undantag, Konsekvent med genomtänkta undantag och Icke konsekvent. Under kategorin Icke konsekvent fann vi två underkategorier som delar upp pedagogerna utefter anledningen de hade att inte vara konsekvent, Respektera personligheter och Undvika konflikt. Vi såg också skillnad på vem reglerna egentligen utgick från, om de utgick från elevernas perspektiv eller pedagogernas perspektiv.
Resultatet visar att förhållningssättet till de regler som finns i ett klassrum är näst intill avgörande om arbetssituationen för eleverna ska vara tillfredsställande.
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Hägglund, Anna-Zara. "Bevisprövning gällande s.k. osanna fakturor : vad har hänt efter HFD 2012 ref. 69 I-III?" Thesis, Stockholms universitet, Juridiska institutionen, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-101446.
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Sullca, Mamani Angel. "Evaluation of hair production in angora rabbits (Oryctolagus cuniculus), fed with three different rations of reed in the Desaguadero municipality - department of La Paz." BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/5435.
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This study was carried out in the Azafranal community of the Desaguadero municipality, which is in the Ingavi Province of the Department of La Paz. It was conducted at an altitude of 3350 meters above sea level at 16°20’00” south latitude and 69°00’00” west longitude. The study went from December 20, 2003 to June 20, 2004. Our objective was to evaluate hair production in angora rabbits (Oryctolagus cuniculus) fed with three different rations of reed. The experimental trial was done at the Angorita farm over a 135 day period that was divided into three smaller periods of 45 days. The experiment was done via a completely randomized block design. The means from each treatment (A, B, C, and D) were analyzed by a Duncan test with a level of 95% confidence. The population consisted of 16 male and 16 female English angora rabbits between 90 and 98 days of age. These were divided into four groups of eight individuals. Each group was then subjected to one of four treatments: 1) ration A with 40% reed content, 2) ration B with 30% reed content, 3) ration C with 20% reed content, and 4) ration D as a control with 0% reed content. The variables measured and studied were: hair weight (g), hair diameter (µ), hair length (cm), and length of a lock of hair (cm). The results reflect a positive effect on hair diameter with rations C and A, which had average diameters of 9.48 µ and 9.64 µ respectively. Furthermore, with respect to hair length, ration A had an average of 4.87 cm and ration C had an average of 4.68 cm. Lastly, with respect to length of a lock of hair, ration A had an average of 4.74 cm and ration B had an average of 4.52 cm (P<0.05). Hair weight did not turn out to be significant, coming in with an average of 61.03 g (P>0.05).
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Davis, Karen Maria. "Evolution of a self : one black woman's relationship with her hair as related through the literature and art of Toni Morrison, Carrie Mae Weems, and Lorna Simpson." Honors in the Major Thesis, University of Central Florida, 1996. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/151.
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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.Bachelors
Arts and Sciences
Liberal Studies
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Paulson, Courtney L. "Using the Haar-Fisz wavelet transform to uncover regions of constant light intensity in Saturn's rings." Honors in the Major Thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/1473.
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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.Bachelors
Sciences
Statistics
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CARLOS, Renata Santiago Alberto. "Ocorr?ncia de anticorpos contra Toxoplasma gondii e fatores determinantes da infec??o canina em Ilh?us-Itabuna, BA." Universidade Federal Rural do Rio de Janeiro, 2010. https://tede.ufrrj.br/jspui/handle/jspui/1156.
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Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico, CNPq.
Toxoplasma gondii is an obrigatory intracelular parasite that has the felids as definitive host (DH) and the homoeothermic animals as intermediary hosts (IH). The infection occurs by ingesting sporulated oocysts that were eliminated in DH feces, by bradyzoites when ingested by IH meat or by tachyzoites when occur vertical transmission. In this study, 529 canine blood samples were collected, 120 at the municipality of Itabuna, and 409 at the municipality of Ilh?us. All blood samples of Itabuna were consisted of animals from domiciled urban areas. From Ilh?us, 96 were domiciled from urban areas, 135 were urban but strayed dogs from Centre for Zoonosis Control (CZC) and 178 were domiciled and from rural area. The Indirect hemagglutination test was used to test the presence of anti-T. gondii and a questionnaire were applied to the domiciled dog owners to analyze risk factors associated to the infection. From all 529 dogs, 193 were positive (36.5%). At Ilh?us 37.7% (154/255) and at Itabuna 32.5% (39/81) of animals were positive. The risk factors associated to the infection were localization, rural dogs had higher chance than urban (p=0.001), the behavior, the strayed urban dogs had more chance than the urban domiciled dogs (p=0.01), home-made food and meat ingestion (p= 0.034 and 0.027 respectively), race, the undefined race dogs had more risk (p=0.0001) and age, were the animals under five years old had a higher risk to the infection (p=0.009). The presence of veterinary assistance was considered as a protection factor. The logistic regression confirmed the habitat and age of the animals as the main risk factor associsted with the infection.
Toxoplasma gondii ? um parasito intracelular obrigat?rio que tem como hospedeiro definitivo membros da fam?lia Felidae e animais homeot?rmicos como hospedeiros intermedi?rios. A infec??o se d? pela ingest?o de oocistos esporulados eliminados nas fezes dos felinos, pela ingest?o de bradizo?tos nos tecidos dos HI ou ainda pela transmiss?o vertical de taquizo?tos. Neste estudo coletou-se sangue de 529 c?es, sendo 120 do munic?pio de Itabuna e 409 de Ilh?us. Todos os animais de Itabuna eram urbanos domiciliados. Dentre os c?es de Ilh?us, 96 eram urbanos domiciliados, 135 eram urbanos errantes provenientes do Centro de Controle de Zoonoses (CCZ), e 178 eram rurais domiciliados. Foi realizado o Teste de Hemaglutina??o Indireta (HAI) para analisar a presen?a de anticorpos anti-T.gondii e um question?rio foi aplicado junto aos propriet?rios dos animais domiciliados para avalia??o dos principais fatores de risco associados ? infec??o. Do total de 529 c?es, 193 foram positivos (36,5%). No munic?pio de Ilh?us 37,7% (154/255) e em Itabuna 32,5% (39/81) foram positivos. Os fatores de risco associados ? infec??o foram o habitat, onde os animais rurais tiveram maior risco do que os urbanos (p=0,001), o modo de vida, em que os animais urbanos errantes tiveram maior risco do que os urbanos domiciliados (p=0,01), ingest?o de comida caseira e de carne (p= 0,034 e 0,027, respectivamente), ra?a apresentando os SRD com maior risco (p=0,0001) e idade onde os animais acima de cinco anos tiveram maior risco (p=0,009). A presen?a de orienta??o do M?dico Veterin?rio se mostrou fator de prote??o (p=0,002). A regress?o log?stica confirmou como principais fatores de risco a idade e o habitat dos animais do estudo
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Jönsson, Josefi, and Astrid Zainea. ""Vi vet ju redan, men vi måste veta. Vad har du på dig?" : En kvalitativ studie av genusföreställningar och stereotyper på Oscarsgalans röda matta." Thesis, Linnéuniversitetet, Institutionen för medier och journalistik (MJ), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-70106.
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The aim of this study was to examine which impact social media has on gender equality. During The Oscars Red Carpet Live 2014 the hashtag #Askhermore arose in the social media sphere. The hashtag implies an existing difference in the questions asked towards women and men on the red carpet. To get a closer look into the climate on the red carpet this study focuses merely on the American Broadcasting Channel’s (ABC) broadcasts from the Oscars red carpet. To be able to follow up the movement and its’ potential effect, the study views two broadcastings done before the establishment of the hashtag and two done after. Focusing on the verbal communication (the language being used), as well as the visual communication (the camera movements and angles), our study shows that #Askhermore has had a great impact on ABC’s Oscars red carpet broadcasts. By looking at these two types of communication in our analysis, it is revealed that women, before the establishment of #Askhermore, were mainly asked about their looks and clothes - while men were asked about their accomplishments in acting. Something that was drastically changed during the two later years of reporting, where women instead were asked the same type of questions as the male actors attending the event. Which indicates a fair amount of stereotypes being reproduced by the reporters at this Hollywood event.
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Sousa, Fabiana de. "A Favorita do Harém Exegese do Salmo 45." Pontifícia Universidade Católica de São Paulo, 2015. https://tede2.pucsp.br/handle/handle/18356.
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Previous issue date: 2015-03-12Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
The aim of this Master Thesis is to analyze, exegetical, the poem in 45 Psalm, especially its beauty literary, its historical context and theological dimensions. The chapters follow the poem in stanzas subdivision. Analyzing thus passage by passage, first giving attention to the Hebrew text, wherein, from the philological studies, is translated into Portuguese, in the most possible literal way. Then, studies are dedicated to stylistic elements observation, for example, the various parallels or the stanzas formation, and the latter are small literary units. Finally, the research that has been presented here focuses on the various elements of the likely historical context and theological dimensions transmitted by 45 Psalm. In particular, the study is concerned to accept the canonical exegesis principles, through parallelism observance present in Hebrew Bible, starting with the idea that the biblical texts explain themselves mutually
O objetivo da presente Dissertação de Mestrado é analisar, exegeticamente, o poema presente no Salmo 45, sobretudo sua beleza literária, seu contexto histórico e suas dimensões teológicas. Os capítulos seguem a subdivisão do poema em estrofes. Analisando dessa forma trecho por trecho, primeiramente, dá-se atenção ao texto hebraico, sendo que este, a partir dos estudos filológicos, é traduzido para o português da forma mais literal possível. Em seguida, os estudos se dedicam à observação dos elementos estilísticos, como, por exemplo, os diversos paralelismos ou a formação das estrofes, sendo que estas últimas constituem pequenas unidades literárias. Por fim, a pesquisa aqui apresentada concentra-se nos diversos elementos do provável contexto histórico e nas dimensões teológicas veiculadas pelo Salmo 45. De um modo especial, o estudo se preocupa em acolher os princípios da exegese canônica, através da observância dos paralelismos presentes na Bíblia Hebraica, partindo da ideia de que os textos bíblicos se explicam mutuamente
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Rosenström, Lotta. ""Sån kärlek har man aldrig varit med om..." : En studie av högläsning för personer med demens." Thesis, Stockholms universitet, Institutionen för socialt arbete - Socialhögskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-43502.
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The paper describes a study on reading aloud to a group of four women with mild or moderate dementia living in a nursing home. The purpose of the study was to examine what reactions the reading aloud creates and if the reactions are different if the literature is written in common Swedish or in easy-to-read Swedish. Original and easy-to-read version of the book "The Lady with the Camelias" by Alexandre Dumas was chosen for reading aloud. The study was conducted in two separate parts with four reading sessions in each part. All sessions were filmed with two cameras, one of them focusing the group and the other focusing one individual. Reader was a caregiver at the womens nursing home.The videofilms have been transcribed and the data has been worked up with a qualitative content analysis. The result has thereafter been analysed on the basis of Erving Goffman´s theory of presentation of self together with relevant research. The study shows that the reading aloud awakened many different reactions, especially among the most verbal women. Three out of four women show a greater amount and more varied reactions during the reading ssions with easy-to-read literature. Alas, it is not possible to draw any certain conclusions about the importance of easy-to-read. One reason is the restricted size of group. Another reason is the difference in picture material between the texts which affected the reader´s activity. In spite of these limitations, the study shows that reading aloud can be stimulating for persons with dementia, even in moderate stage. The study also shows that the reader plays an important part in contributing to reactions in the group and especially in the more severely demential women.
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Wahlgren, Maria. "”De har ju mycket att säga när de får komma med saker själva” : En kvalitativ studie om lärares erfarenheter av högläsning och samtal i syfte att stimulera elevers läs- och språkutveckling." Thesis, Högskolan Dalarna, Institutionen för lärarutbildning, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:du-36479.
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Syftet med denna studie är att undersöka vilken erfarenhet verksamma lärare i årskurs F-3 har av högläsning inför klassen i svenskämnet för att stimulera elevernas läs- och språkutveckling. Via semistrukturerade intervjuer valde jag att söka svar på vad lärare säger sig ha för didaktiska syften med sin högläsning samt hur de använder sig av samtal i anslutning till högläsningen. Resultatet av denna studie analyserades med stöd i ett sociokulturellts perspektivs idéer om att människan utvecklas och formas i samspelet med andra människor samt att kommunikation och språk är centrala i människans lärande. Vid insamlandet av empiri genomfördes sex intervjuer med sju lärare verksamma i årskurs F-3. Resultatet visar att lärare väljer att använda sig av högläsning i syfte att utveckla elevernas ordförråd samt ord- och begreppsförståelse. Vidare berättar lärarna hur de med hjälp av högläsning vill skapa en läsglädje och ett läsintresse hos sina elever, samtidigt som de använder högläsningen till att modellera lässtrategier som eleverna sedan kan använda sig av vid enskild läsning. Avslutningsvis motiverar lärarna högläsning med att det gynnar elevernas språkutveckling på flera plan. Gällande samtal berättar lärarna att elevernas egna erfarenheter är en viktig komponent i dessa, samtidigt som samtalen genomförs i syfte att eleverna ska få en förståelse för hur de kan använda sig av förutsägelser. Via samtal ges eleverna även en förståelse för ord och dess betydelse. Resultatet visar även att lärare väljer mellan lärarstyrda samtal och elevstyrda samtal, samt att lärarna har skilda motiveringar till detta.Svenska
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Svensson, Erica. ""Man tar inte bara en bok hur som helst, utan man har ett syfte med varje bok" : En kvalitativ studie om hur fem lärare i grundskolans tidigare år beskriver deras användning av högläsning i undervisningen." Thesis, Högskolan för lärande och kommunikation, Högskolan i Jönköping, HLK, CHILD, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-31054.
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Högläsning är en viktig aktivitet som främjar elevernas ordförråd och utvecklar språk- och läsutveckling, samt medvetenheten om hur en berättelse är uppbyggd. Men det räcker inte med att bara läsa direkt ur boken. Läraren behöver även undervisa om lässtrategier som eleverna till slut själva kan använda vid individuell läsning. För att ta reda på hur lärarna i denna studie beskriver sin användning av högläsning tar studien sin utgångspunkt i en kvalitativ ansats med semistrukturerade intervjuer. Genom semistrukturerade intervjuer med fem lärare från en skola besvarar studien följande frågeställningar: Hur används högläsning av läraren i klassrummet, och hur anpassas högläsningen till eleverna? Hur hanteras lässtrategier vid lärarens högläsning? Vilket syfte har lärarna med högläsning? Vilka fördelar och nackdelar anser lärarna finns vid högläsning? Resultat är tolkat och baserat på den hermeneutiska teorin. Studien utgår från den sociokulturella teorin där lärandet i samspel med andra är en förutsättning. Resultatet visar att lärarna använder sig av lässtrategier under högläsning för att utveckla elevernas läsförståelse och ordförråd, samt att lärarna beskriver högläsningen som positiv.Reading aloud is an important activity that promotes pupil´s vocabulary and develops language and literacy development, and the understanding of how a story is constructed. But it's not enough to just read directly from the book. Teachers also need to teach reading strategies those pupils eventually self-operated by individual reading. To find out how the teachers in this study describe their use of reading aloud study takes as its starting point a qualitative approach with semistructured interviews. Through semi-structured interviews with five teachers from a school study answers the following questions: How is reading aloud used by the teacher in the classroom, and how is reading aloud adapted to the students? How are reading strategies used during reading aloud by the teacher? What is the purpose of the teachers by reading aloud? What advantages and disadvantages do the teachers find in reading aloud? Results are interpreted and based on the hermeneutic theory. The study is based on the socio-cultural theory where learning in interaction with others is essential. The results show that teachers use reading strategies for reading aloud to develop students' reading comprehension and vocabulary, as well as teachers describe recital positive.
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Townsend, Marjorie Louise. "Overseeding the cover crops Hairy Vetch (Vicea Villosa Roth) and Medium Red Clover (Trofolium Pratense L.) into corn (Zea Mays L.) after the last cultivation: effects on corn yield and cover crop production of dry matter and ground cover residue." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu1413464088.
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Hahl, Victoria. "MAKING VICTIM: ESTABLISHING A FRAMEWORK FOR ANALYZING VICTIMIZATION IN 20TH CENTURY AMERICAN THEATRE." Master's thesis, University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3384.
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It is my belief that theatre is the telling of stories, and that playwrighting is the creation of those stories. Regardless of the underlying motives (to make the audience think, to make them feel, to offend them or to draw them in,) the core of the theatre world is the storyline. Some critics write of the importance of audience effect and audience reception; after all, a performance can only be so named if at least one person is there to witness it. So much of audience effect is based the storyline itself - that structure of which is created by the power characters have over others. Theatre generalists learn of Aristotle's well-made play structure. Playwrights quickly learn to distinguish between protagonists and antagonists. Actors are routinely taught physicalizations of creating "status" onstage. A plotline is driven by the power that people, circumstances, and even fate exercise over protagonists. Most audience members naturally sympathize with the underdog or victim in a given storyline, and so the submissive or oppressed character becomes (largely) the most integral. By what process, then, is this sense of oppression created in a play? How can oppression/victimization be analyzed with regard to character development? With emerging criticism suggesting that the concept of character is dying, what portrayals of victim have we seen in the late 20th century? What framework can we use to fully understand this complex concept? What are we to see in the future, and how will the concept evolve? In my attempt to answer these questions, I first analyze the definition of "victim" and what categories of victimization exist – the victim of a crime, for example, or the victim of psychological oppression. "Victim" is a word with an extraordinarily complex definition, and so for the purposes of this study, I focus entirely on social victimization - that is, oppression or harm inflicted on a character by their peers or society. I focus on three major elements of this sort of victimization: harm inflicted on a character by another (not by their own actions), harm inflicted despite struggle or protest, and a power or authority endowed on the victimizer by the victim. After defining these elements, I analyze the literary methods by which playwrights can represent or create victimization – blurred lines of authority, expressive text, and the creation of emotion through visual and auditory means. Once the concept of victim is defined and a framework established for viewing it in the theatre, I analyze the victimization of one of American theatre's most famous sufferers – Eugene O'Neill's Yank in The Hairy Ape. To best contextualize this character, I explore the theories of theatre in this time period – reflections of social struggles, the concept of hierarchy, and clearly drawn class lines. I also position The Hairy Ape in its immediate historical and theoretical time period, to understand if O'Neill created a reflection on or of his contemporaries. Finally, I look at the concept of victim through the nonrealistic and nonlinear plays of the 20th century – how it has changed, evolved, or even (as Eleanor Fuchs may suggest) died. I found that my previously established framework for "making victim" has change dramatically to apply to contemporary nonlinear theatre pieces. Through this study, I have found that the lines of victimization and authority are as blurred today in nonrealistic and nonlinear theatre as they were in the seemingly "black and white" dramas of the 1920s and 30s. In my research, I have found the very beginnings of an extraordinarily complex definition of "victim".M.A.
Department of Theatre
Arts and Humanities
Theatre MA
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Tsernova, Inga. "jag försöker låta bli : en text om att bli till: om kroppar, hantverk, själ och Ande." Thesis, Konstfack, Ädellab, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:konstfack:diva-7265.
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How can we live and work with craft as people in an age of global climate crisis? What must we change in order to work empathically and in harmony with our surrounding world? While not in need to actively ensure our survival, it is easy for us to forget to stay humble to our own needs, thus taking our lives and our surroundings for granted. We forget our bodies and we forget the bodies of others, animals and objects alike. We forget that we need each other in order to become. This text is a complementary exploration in how awareness of the soul, body and Spirit may help bring back a balance that we've lost in town based cultures of the west. I am looking for balance as I twist fibre into thread and into rope and as I suspend rock- and human bodies into temporary sculptures. I look for inspiration in phenomenologist thought, alchemy, shamanism and daoism, as well as in the active making of craft and art. My work centers around telling stories, crafting and material exploration as well as bodily awareness and performance. In the work, body and material are synonymous concepts drifting in and out of each other, enabling and shaping each other, becoming together. I am looking to meet my surroundings not always on my own terms, but by changing, adapting and compromising myself. This helps bring an awareness that unites me with the bodies around me, placing me not above but amidst constant becomings.
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Oommen, Retty. "Production of blue pigments from the callus cultures of Lavandula augustifolia and red pigments (betalain) from the hairy root culture of Beta vulgaris : a thesis presented in partial fulfilment of the requirements for the degree of Master of Technology in Biotechnology at Massey University, Palmerston North, New Zealand." Massey University, 2009. http://hdl.handle.net/10179/997.
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Plants are used to produce many secondary metabolites that are too difficult, expensive or impossible to make by chemical synthesis. Conventional cultivation of plants is of course subject to vagaries of weather, pests and availability of land; hence, the interest in highly controlled culture of plant cells and hairy roots in bioreactors as methods of producing various products. This project focussed on production of blue and red colors of Lavandula augustifolia and Beta vulgaris, respectively. Callus and suspension cell culture were successfully produced from L. augustifolia after extensive trials, but hairy roots could not be generated from this species. In contrast, a successful protocol was developed for consistently producing hairy roots from B. vulgaris, but calli could not be generated from this species. Effects of medium composition on growth of L. augustifolia calli and freely suspended cells and production of the blue pigment by the latter, were investigated. Optimal production of callus occurred in full-strength Murashige and Skoog (MS) medium supplemented with 2 mg/l of indole-3-acetic acid (IAA) and 1 mg/l of kinetin. Stable suspension cultures could be produced and maintained in full-strength MS medium supplemented with 1 mg/l each of IAA and kinetin. In suspension culture in full-strength MS medium, the following hormone combinations were tested: (1) 1 mg/l each of indole-3-acetic acid (IAA) and kinetin; (2) 2 mg/l of IAA and 1 mg/l of kinetin; (3) 2 mg/l of IAA and 1 mg/l of benzyl amino purine (BAP); and (4) 2 mg/l each of IAA and BAP. Combination (3) maximized cell growth, but the highest cell-specific production of the blue pigment was seen in combination (2), although pigment production occurred at all hormone combinations. The medium formulation that gave the best production of the pigment in shake flasks was scaled up to a 2 L aerated stirred tank bioreactor, but both the biomass and pigment productivities were reduced in the bioreactor apparently due to the high shear stress generated by the Rushton turbine impeller. Compared to suspension cultures of L. augustifolia, the hairy root cultures of B. vulgaris grew extremely rapidly. Hairy roots also produced large amounts of the red pigments. Growth of hairy roots was influenced by the composition of the medium. Although the full strength MS medium better promoted biomass growth compared to the half-strength MS medium, the final concentration of the biomass and the pigment were nearly the same in both media. Attempts were made to enhance production by using various hormones (i.e. naphthalene acetic acid, BAP, IAA added individually at a concentration of 0.5 mg/l), but none of the hormones proved useful. BAP adversely affected the growth of hairy roots. In summary, production of pigments by suspension culture of L. augustifolia and hairy root culture of B. vulgaris, is technically possible, but requires substantial further optimization for enhancing productivity than has been possible in this project. iii
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Barboza, Rafael Silva. "Caracteriza??o das Bacias A?reas e Avalia??o da Chuva Oculta T nos Contrafortes da serra do Mar - RJ." Universidade Federal Rural do Rio de Janeiro, 2007. https://tede.ufrrj.br/jspui/handle/jspui/1251.
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Instituto Terra de Prote??o Ambiental, ITPA, Brasil.
The air basin is a three-dimensional space that conduct and distribute the winds over the drainage basin. In Rio de Janeiro?s state, 48% of the territory is constituted by Atlantic slope, where were registered 16 air basins with specific environmental features, distributed in 20% of the area. Based on the conformation of morphometrics parameters the air basins were grouped, by Multivariate Analysis - Cluster, with Euclidean distance of 48%, significance level of 95% and correlation coefficient of 0.7132, in 5 groups with similar forms. To evaluate the hydrologic effects within the air basins, it was used as a study case, the air basin of Angra dos Reis, where the magnitude of the interception of clouds was measured in the escape zone from the topographic divide of the Pirai river basin (leeward), in different distance away, with and without natural barriers, during the winter and summer. It was used vertical intercept sampling area equivalent to 0.45% of the forests in the region. The variation of the removal of the topographic divide occurred until 500 m of altitude, this limit may be the end of the escape zone and the beginning of the air basin distribution zone. The effect of air basin represented additional of 44% of the volume of rain in topographic divide (point 1), 39% at 4.5 km (point 2) and 42% at 7.5 km (point 3) of the point 1, in concordant direction of the flow. The effect of the orography in the trajectory of the winds, varied in an irregular way in winter and in summer, maintaining differential of 23% and 77% in point A (obstruction of 85% of the cross section) and 32% and 68% in point B (obstruction of 80% of the cross section). In areas under the influence of air basins, the variables and environmental processes can be crucial to offer environmental services in drainage basins.
A Bacia A?rea ? um espa?o tridimensional que conduz e distribui os ventos sobre as bacias hidrogr?ficas. No Estado do Rio de Janeiro, 48% do territ?rio ? composto pela vertente Atl?ntica, onde foram registradas 16 bacias a?reas com caracter?sticas ambientais espec?ficas, distribu?das em 20% da ?rea. Baseado na conforma??o de par?metros morfom?tricos as bacias a?reas foram agrupadas, atrav?s de An?lise Multivariada ? Cluster, com dist?ncia Euclidiana de 48%, n?vel de signific?ncia de 95% e coeficiente de correla??o de 0,7132 em 5 grupos com formas similares. Para avaliar os efeitos hidrol?gicos dentro das bacias a?reas, utilizou-se como estudo de caso a bacia a?rea de Angra dos Reis, onde a magnitude da vari?vel intercepta??o das nuvens foi medida na zona de escape, a partir do interfl?vio da bacia hidrogr?fica do rio Pirai (sotavento), em dist?ncias de afastamento distintas, com e sem barreiras orogr?ficas, durante o inverno e ver?o. Utilizou-se ?rea amostral de intercepta??o vertical equivalente a 0,45% das florestas da regi?o. A varia??o do afastamento do interfl?vio ocorreu at? desn?vel de 500 m em altitude, podendo ser este limite o fim da zona de escape e in?cio da zona de distribui??o da bacia a?rea. O efeito da bacia a?rea representou adicional de 44% em volume de chuva no interfl?vio (ponto 1), 39% a 4,5 km (ponto 2) e 42% a 7,5 km (ponto 3) do ponto 1 em dire??o concordante ao sentido do fluxo. O efeito da orografia no corredor variou de forma irregular no inverno e no ver?o, mantendo diferencial de 23% e 77% no ponto A (obstru??o de 85% da se??o transversal) e 32% e 68% , no ponto B (obstru??o de 80% da se??o transversal). Em ?reas sob influ?ncia de bacias a?reas, as vari?veis e processos ambientais podem ser determinantes para ofertar servi?os ambientais nas bacias hidrogr?ficas.
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Rejmalm, Madelene, and Maria Gruvman. "Högläsning i förskolan - Endast vid vilan? : En intervju. och observationsstudie om förskollärarens förhållningssätt till högläsning i relation till den nya läroplanen." Thesis, Karlstads universitet, Institutionen för pedagogiska studier (from 2013), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-73400.
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The purpose of this study is to clarify how pedagogues work with the new curriculum goal regarding reading and talking about text content in order to promote children's language development in various ways. Eight observations have been conducted and four qualitative interviews at four different preschools. Based on the socio-cultural perspective. The results show that preschool teachers have understood that reading aloud and talking about the read is important for children's language development, but the working method between the different preschools has varied.Syftet med den här studien är att synliggöra hur utbildade förskollärare förhåller sig till och arbetar utifrån målet i den senaste läroplanen (Lpfö18) angående högläsning och samtal kring det lästa för att utveckla språklig medvetenhet och ordkunskap hos de äldre barnen. Åtta observationer och fyra kvalitativa intervjuer på fyra olika förskolor har genomförts. Studien tar teoretisk utgångspunkt i det sociokulturella perspektivet på lärande som beskrivs av Vygotskij. Resultaten visar att förskollärarna har liknande uppfattningar angående högläsning och samtal kring det lästa avseende värdet för barnens utveckling av språklig medvetenhet. Dock har arbetssättet för att nå detta mål varierat bland de olika förskolorna.
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O'Malley, Donica. "Ginger Masculinities." 2015. https://scholarworks.umass.edu/masters_theses_2/288.
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This paper explores white American masculinity within the “ginger” phenomenon. To guide this study, I asked: How is racism conceptualized and understood within popular culture, as seen through discussions of whether or not gingerism constitutes racism? How do commenters respond or interact when their understandings of racism or explanations for gingerism are challenged by other commenters? And finally, what does the creation of and prejudice against/making fun of a “hyperwhite” masculine identity at this social/historical moment suggest about the current stability of the dominant white masculine identity? Through discourse analysis of online comments, I explored discussions of race, gender, and gingerism. The analysis covered 6,413 comments on 102 articles. I found that within discussions of race and gingerism, readers made use of varying definitions of race and racism. Different definitions led to conflations of racism, oppression, and bullying. Simplified and individualized definitions of race and racism also led to arguments that supported frameworks of reverse racism and post-racism. So-called discrimination against redheaded men was overall considered to be more serious than for women. These arguments were bound up in questions of the specificity of cultural contexts, and ethnic and national identities, particularly with regard to Irish and Scottish immigrant heritage in the United States and United Kingdom. Future work should continue to untangle ideas of race and physical appearance and ask how whiteness is understood and works within this context.
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Davies, Gareth C., M. Julie Thornton, Tracey J. Jenner, Yi-Ju Chen, J. B. Hansen, R. D. Carr, and Valerie A. Randall. "Novel and established potassium channel openers stimulate hair growth in vitromodes of action in hair follicles.: implications for their." 2005. http://hdl.handle.net/10454/4017.
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NoAlthough ATP-sensitive potassium (K(ATP)) channel openers, e.g., minoxidil and diazoxide, can induce hair growth, their mechanisms require clarification. Improved drugs are needed clinically. but the absence of a good bioassay hampers research. K(ATP) channels from various tissues contain subtypes of the regulatory sulfonylurea receptor, SUR, and pore-forming, K(+) inward rectifier subunits, Kir6.X, giving differing sensitivities to regulators. Therefore, the in vitro effects of established potassium channel openers and inhibitors (tolbutamide and glibenclamide), plus a novel, selective Kir6.2/SUR1 opener, NNC 55-0118, were assessed on deer hair follicle growth in serum-free median without streptomycin. Minoxidil (0.1-100 microM, p<0.001), NNC 55-0118 (1 mM, p<0.01; 0.1, 10, 100 microM, p<0.001), and diazoxide (10 microM, p<0.01) increased growth. Tolbutamide (1 mM) inhibited growth (p<0.001) and abolished the effect of 10 microM minoxidil, diazoxide and NNC 55-0118; glibenclamide (10 microM) had no effect, but prevented stimulation by 10 microM minoxidil. Phenol red stimulated growth (p<0.001), but channel modulator responses remained unaltered. Thus, deer follicles offer a practical, ethically advantageous in vitro bioassay that reflects clinical responses in vivo. The results indicate direct actions of K(ATP) channel modulators within hair follicles via two types of channels, with SUR 1 and SUR 2, probably SUR2B, sulfonylurea receptors.
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Chen, Chung-An, and 陳重安. "The creation of Red Hair Harbor Histroy on Cultural and Creative Product Design." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/17627513309153007194.
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碩士國立高雄師範大學
視覺設計學系
99
The aim of this paper is to create cultural creativity products which are inspired by the traditional stories in the “Red Hair Harbor”, thereby studying the design and development of the products, as well as cultural marketing, giving the traditional stories of fashion sense and a new sense of creativity. coupled with the upcoming opening of the Red Hair Harbor Cultural Park in Kaohsiung, this creation-based study can contribute ideas to the marketing and image management. With the creation of “the Red Hair people’s treasure hunt” as the theme of the story line, many legends were linked together under the “treasure hunt” concepts. by the combination of the early folklores and products through the role shaping in the story, cultural creativity products with the local features and contents were created. The creation forms can be divided into two parts: graphic design and three-dimensional design. Graphic design mainly includes computer-based vector graphics to facilitate future applications in a variety of products; in terms of the three-dimensional design, the graphics of the story characters shall be presented for their display and promotion upon completion. The creation is expected to be applied in the cultural industry. The ability of being a good story-teller is essential in the cultural creativity industry. This paper not only give a practice of the creation of narrative-based cultural product through the stories in the Red Hair Harbor, but also explore and discover the development potential behind the traditional culture in the region. Hopefully it can provide a new aspect to the international design and culture ecologies in Taiwan.
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Randall, Valerie A., Nigel A. Hibberts, T. Street, and M. Julie Thornton. "Androgen receptors are only present in mesenchyme-derived dermal papilla cells of red deer (Cervus elaphus) neck follicles when raised androgens induce a mane in the breeding season." 2001. http://hdl.handle.net/10454/2946.
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NoRed deer stags produce an androgen-dependent mane of long hairs only in the breeding season; in the non-breeding season, when circulating androgen levels are low, the neck hair resembles the rest of the coat. This study was designed to determine whether androgen receptors are present in deer follicles throughout the year or only in the mane (neck) follicles when circulating testosterone levels are high in the breeding season. Although androgens regulate much human hair growth the mechanisms are not well understood; they are believed to act on the hair follicle epithelium via the mesenchyme-derived dermal papilla. The location of androgen receptors in the follicle was investigated by immunohistochemistry and androgen binding was measured biochemically in cultured dermal papilla cells derived from mane and flank follicles during the breeding season and from neck follicles during the non-breeding season. Immunohistochemistry of frozen skin sections using a polyclonal antibody to the androgen receptor localised nuclear staining only in the dermal papilla cells of mane follicles. Saturation analysis assays of 14 primary dermal papilla cell lines using [(3)H]-mibolerone demonstrated high-affinity, low-capacity androgen receptors were present only in mane (breeding season neck) cells; competition studies with other steroids confirmed the specificity of the receptors. Androgen receptors were not detectable in cells from either the breeding season flank nor the non-breeding season neck follicles. The unusual biological model offered by red deer of androgen-dependent hair being produced on the neck in the breeding, but not the non-breeding season, has allowed confirmation that androgen receptors are required in follicle dermal papilla cells for an androgen response; this concurs with previous human studies. In addition, the absence of receptors in the non-breeding season follicles demonstrates that receptors are not expressed unless the follicle is responding to androgens. Androgen receptors may be induced in mane follicles by seasonal changes in circulating hormone(s).
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Micillo, Raffaella. "Properties of melanin pigments for the definition of mechanisms of (photo)toxicity in red hair phenotype and development of strategies of (photo)protection." Tesi di dottorato, 2017. http://www.fedoa.unina.it/11489/1/micillo_raffaella_29.pdf.
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In recent years particular attention has been focused on the properties of melanin pigments with regard to their association with some pathological conditions and to their controversial role in the response of skin to solar radiation.
This is especially true in the case of pheomelanins, typical of red hair phenotype, with red hair pale skin, blue-green eyes and freckles. People exhibiting this phenotype have poor tanning capacity, exhibit a UV-susceptibility trait with high tendency to sunburn and an increased risk for skin tumors and melanoma.
On the other hand, eumelanins are commonly believed to be the most important photoprotective factor, even if evidence accumulating over the last decades highlight a much more controversial role of eumelanins in human pigmentation. On these bases, the research work carried out during the PhD course and reported in this thesis was directed at investigating the light-independent effects of purified human hair melanins on keratinocyte cell cultures with particular attention to their pro-oxidant properties and at defining the origin of the broadband absorption spectrum of eumelanin, which underpins their protective shielding effect.
Based on the consideration that, besides eumelanin pigments, the entire melanogenic pathway is relevant to melanocyte function, the effect of carboxyl group substituent of indole precursors on eumelanin properties was evaluated and a suitable derivative of 5,6-dihydroxyindole-2-carboxylic acid (DHICA) was prepared to assess the photoprotective properties for potential application in sunscreen formulations.
Local excess of pigmentation is one of the most common pigmentary disorder5 whose aesthetically impact has urged the search for efficient strategies for control of skin pigmentation. As a preliminary approach toward the implementation of a novel skin depigmenting agent a conjugate of caffeic acid with dihydrolipoic acid was prepared and tested for its ability to inhibit mushroom tyrosinase activity.
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Miranda, Benjamin H., Desmond J. Tobin, David T. Sharpe, and Valerie A. Randall. "Intermediate hair follicles: a new more clinically relevant model for hair growth investigations." 2010. http://hdl.handle.net/10454/6098.
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BACKGROUND: Alopecia causes widespread psychological distress, but is relatively poorly controlled. The development of new treatments is hampered by the lack of suitable human hair follicle models. Although intermediate and vellus hair follicles are the main clinical targets for pharmacological therapy, terminal hair follicles are more frequently studied as smaller hair follicles are more difficult to obtain. OBJECTIVES: This investigation was designed to quantify in vivo morphological and in vitro behavioural differences in organ culture between matched intermediate and terminal hair follicles, in order to develop a new clinically relevant model system. METHODS: Microdissected terminal and intermediate hair follicles, from the same individuals, were analysed morphometrically (250 follicles; five individuals), or observed and measured over 9 days of organ culture (210 follicles; six individuals). RESULTS: Intermediate hair follicles were less pigmented and smaller, penetrating less below the skin surface (mean +/- SEM) (2.59 +/- 0.07 vs. 3.52 +/- 0.10 mm; P = 0.02), with smaller fibre (0.03 +/- 0.002 vs. 0.07 +/- 0.002 mm), connective tissue sheath (0.24 +/- 0.01 mm vs. 0.33 +/- 0.01 mm), bulb (0.19 +/- 0.01 vs. 0.31 +/- 0.01 mm) and dermal papilla (0.06 +/- 0.002 vs. 0.12 +/- 0.01 mm) diameters (P < 0.001). Intermediate hair follicle bulbs appeared 'tubular', unlike their 'bulbous' terminal follicle counterparts. In organ culture they also grew more slowly (0.044 +/- 0.002 vs. 0.067 +/- 0.003 mm per day; P < 0.001), remained in anagen longer (84 +/- 0.03% vs. 74 +/- 0.03% at day 9; P = 0.012) and produced less hair fibre (0.36 +/- 0.02 vs. 0.50 +/- 0.03 mm; P < 0.001) than terminal follicles. CONCLUSIONS: Smaller intermediate hair follicles showed major morphological differences from terminal follicles in vivo and retained significant, biologically relevant differences in vitro in organ culture. Therefore, intermediate hair follicles offer a novel, exciting, more clinically relevant, albeit technically difficult, model for future investigations into hair growth. This should be particularly important for developing new therapies.
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Mardaryev, Andrei N., Mohammed I. Ahmed, Nikola V. Vlahov, Michael Y. Fessing, Jason H. Gill, A. A. Sharov, and Natalia V. Botchkareva. "Micro-RNA-31 controls hair cycle-associated changes in gene expression programs of the skin and hair follicle." 2010. http://hdl.handle.net/10454/6078.
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The hair follicle is a cyclic biological system that progresses through stages of growth, regression, and quiescence, which involves dynamic changes in a program of gene regulation. Micro-RNAs (miRNAs) are critically important for the control of gene expression and silencing. Here, we show that global miRNA expression in the skin markedly changes during distinct stages of the hair cycle in mice. Furthermore, we show that expression of miR-31 markedly increases during anagen and decreases during catagen and telogen. Administration of antisense miR-31 inhibitor into mouse skin during the early- and midanagen phases of the hair cycle results in accelerated anagen development, and altered differentiation of hair matrix keratinocytes and hair shaft formation. Microarray, qRT-PCR and Western blot analyses revealed that miR-31 negatively regulates expression of Fgf10, the components of Wnt and BMP signaling pathways Sclerostin and BAMBI, and Dlx3 transcription factor, as well as selected keratin genes, both in vitro and in vivo. Using luciferase reporter assay, we show that Krt16, Krt17, Dlx3, and Fgf10 serve as direct miR-31 targets. Thus, by targeting a number of growth regulatory molecules and cytoskeletal proteins, miR-31 is involved in establishing an optimal balance of gene expression in the hair follicle required for its proper growth and hair fiber formation.
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Wood, John M., H. Decker, H. Hartmann, Bhavan Chavan, Hartmut Rokos, J. D. Spencer, Sybille Hasse, et al. "Senile hair graying: H2O2-mediated oxidative stress affects human hair color by blunting methionine sulfoxide repair." 2009. http://hdl.handle.net/10454/6241.
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Senile graying of human hair has been the subject of intense research since ancient times. Reactive oxygen species have been implicated in hair follicle melanocyte apoptosis and DNA damage. Here we show for the first time by FT-Raman spectroscopy in vivo that human gray/white scalp hair shafts accumulate hydrogen peroxide (H(2)O(2)) in millimolar concentrations. Moreover, we demonstrate almost absent catalase and methionine sulfoxide reductase A and B protein expression via immunofluorescence and Western blot in association with a functional loss of methionine sulfoxide (Met-S=O) repair in the entire gray hair follicle. Accordingly, Met-S=O formation of Met residues, including Met 374 in the active site of tyrosinase, the key enzyme in melanogenesis, limits enzyme functionality, as evidenced by FT-Raman spectroscopy, computer simulation, and enzyme kinetics, which leads to gradual loss of hair color. Notably, under in vitro conditions, Met oxidation can be prevented by L-methionine. In summary, our data feed the long-voiced, but insufficiently proven, concept of H(2)O(2)-induced oxidative damage in the entire human hair follicle, inclusive of the hair shaft, as a key element in senile hair graying, which does not exclusively affect follicle melanocytes. This new insight could open new strategies for intervention and reversal of the hair graying process.
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Bengtsson, C. F., M. E. Olsen, L. O. Brandt, M. F. Bertelsen, E. Willerslev, Desmond J. Tobin, Andrew S. Wilson, and M. T. P. Gilbert. "DNA from keratinous tissue. Part I: Hair and nail." 2012. http://hdl.handle.net/10454/10932.
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NoKeratinous tissues such as nail, hair, horn, scales and feather have been used as a source of DNA for over 20 years. Particular benefits of such tissues include the ease with which they can be sampled, the relative stability of DNA in such tissues once sampled, and, in the context of ancient genetic analyses, the fact that sampling generally causes minimal visual damage to valuable specimens. Even when freshly sampled, however, the DNA quantity and quality in the fully keratinized parts of such tissues is extremely poor in comparison to other tissues such as blood and muscle – although little systematic research has been undertaken to characterize how such degradation may relate to sample source. In this review paper we present the current understanding of the quality and limitations of DNA in two key keratinous tissues, nail and hair. The findings indicate that although some fragments of nuclear and mitochondrial DNA appear to be present in almost all hair and nail samples, the quality of DNA, both in quantity and length of amplifiable DNA fragments, vary considerably not just by species, but by individual, and even within individual between hair types.
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Yi-Ting, Wang, and 王怡婷. "Antioxidant and betalains analysis of red beet (Beta vulgaris) leaves and hairy-root cultures." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/22321142875621847946.
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碩士中州科技大學
保健食品系
103
Red beetroot (Beta vulgaris) contents rich nutrients, bioactive compounds with antioxidative activity and function in human benefits. Hairy-root cultures, were infected via Agrobacterium rhizogenes, with the high production capability and genetic stability have been used on production of secondary metabolites in plants. In this study we investigated various leaves grown in greenhouse or outdoor for their total phenols, chlorophyll and betalains (betacyanins, BC and betaxanthins, BX) contents along with antioxidative ability. Hairy roots derived from various leaves were cultured and their betalains contents were analyzed. The results showed that the total phenols, chlorophyll and betalains amounts in green young leaves were significantly (p < 0.05) higher than green old leaves. BC concentration is slight higher than that of BX in of beetroot leaves. Chlorophyll showed the positive correlation (Person factor= 0.994, p < 0.001) with betalains contents. A dose-dependent kinetics in DPPH scavenging ability and in reducing power was found on beetroot leaves extracts. Red hairy-root has higher batalains than that of the yellow hairy root. It was found that inoculation amount and sucrose concentration would contribute to the betalains synthesis on hairy root culture with higher BX contents than that of BC.
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Wu, Mei Ching, and 吳美青. "The Research on Ren-hai Temple in Chung-li." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/64496819583868699119.
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碩士玄奘大學
宗教學系碩士在職專班
103
The essay majorly focuses on Ren-hai Temple (also called New Street Mazu Temple). It discusses the origin and history of the temple. Then I try to appreciate the art and architectural pattern in this holy space. Besides, I also pay attention to both the important ceremony and the analysis of cultural and historical relics such as the valuable couplets. Being the leading temple in Chung-li, Ren-hai Temple , having the most follwers, represents and symbolizes the rise of Chung-li New Street, which is derived to fight with the original power in Chung-li Old Street. The relationship between the Fujian people and Guangdong people has a great influence on its establisment and development. Because of the background, Chung-li Ren-hai Temple and Ping-zhen Yi-min Temple united the thirteen villages in Chung-li by forming the Chungyuan Festival rotating worship network alliance. Ren-hai Temple, built over two hundred years, though delicated to the goddess Mazu, also enshrines and worships other gods and goddess. This phenomenon reflects human desires in every aspect of life no matter how the outer circumstances changes. It is not only a religional comforting therapy now but also a political center in the past. The temple helps unite the people, especially the Hakkas to go through the hard times: Fujians-Hakkas fighting, Japanese reign period and World War II. People here take its activites as grand events and will never miss iany of them. Therefore, people in this area also attribute the success of the thriving and prosperous economy in Chunh-li to Ren-hai Temple. In addtion to the educational functions, Ren-hai Temple provides a great place for tourism,too. It is an art museum.The design and architeture are fantastic and magneficient. We can appreciate many great works here. Recently, Ren-hai Temple senses its responsibility and becomes very active in public benefits and hopes to help enhance the social moral standard In 2014, Ren-hai Temple and New Street Word Pavillion apply to have the honor to become the national relics. Truly, Ren-hai Temple is doubtlessly the most important cultural treasure for the people in Taoyuan county.
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Randall, Valerie A., Tracey J. Jenner, Nigel A. Hibberts, Oliveira Isabel O. De, and Tayyebeh Vafaee. "Stem cell factor/c-Kit signalling in normal and androgenetic alopecia hair follicles." 2008. http://hdl.handle.net/10454/6148.
Full textAbstract:
Androgens stimulate many hair follicles to alter hair colour and size via the hair growth cycle; in androgenetic alopecia tiny, pale hairs gradually replace large, pigmented ones. Since stem cell factor (SCF) is important in embryonic melanocyte migration and maintaining adult rodent pigmentation, we investigated SCF/c-Kit signalling in human hair follicles to determine whether this was altered in androgenetic alopecia. Quantitative immunohistochemistry detected three melanocyte-lineage markers and c-Kit in four focus areas: the epidermis, infundibulum, hair bulb (where pigment is formed) and mid-follicle outer root sheath (ORS). Colocalisation confirmed melanocyte c-Kit expression; cultured follicular melanocytes also exhibited c-Kit. Few ORS cells expressed differentiated melanocyte markers or c-Kit, but NKI/beteb antibody, which also recognises early melanocyte-lineage antigens, identified fourfold more cells, confirmed by colocalisation. Occasional similar bulbar cells were seen. Melanocyte distribution, concentration and c-Kit expression were unaltered in balding follicles. Androgenetic alopecia cultured dermal papilla cells secreted less SCF, measured by ELISA, than normal cells. This identifies three types of melanocyte-lineage cells in human follicles. The c-Kit expression by dendritic, pigmenting, bulbar melanocytes and rounded, differentiated, non-pigmenting ORS melanocytes implicate SCF in maintaining pigmentation and migration into regenerating hair bulbs. Less differentiated, c-Kit-independent cells in the mid-follicle ORS stem cell niche and occasionally in the bulb, presumably a local reserve for long scalp hair growth, implicate other factors in activating stem cells. Androgens appear to reduce alopecia hair colour by inhibiting dermal papilla SCF production, impeding bulbar melanocyte pigmentation. These results may facilitate new treatments for hair colour changes in hirsutism, alopecia or greying.
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CHIEN, TSAI YI, and 蔡依倩. "The Development Strategies of Culture and Tourism: A Case of TheJhongli Ren Hai Temple." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/t743zx.
Full textAbstract:
碩士開南大學
商學院碩士在職專班
102
In recent years, tourism activities embed cultural features have been an important strategy for local development in Taiwan. For Taoyuan County, in Jhongli district, the “Ren Hai Temple” has a long history and rich in cultural connotation. It is quite worth to develop a cultural tourism for Taoyuan County. In addition, the “Jhongli Ren Hai Temple” is located in downtown of Jhongli, it not only has the convenient advantage of transportation but also has the cultural value in evolution of temple building. If it coordinates the development of Taoyuan Aerotropolis, it will make more prospective economic benefit from development of cultural tourism for“Jhongli Ren Hai Temple”. Therefore, this study takes The “Jhongli Ren Hai Temple” as an example to explore how the strategies are made on the viewpoint of culture and tourism. The results wish can drive the local development of Jhongli, even increase the cultural connotation and bring the crowd to create more economic benefits for Taoyuan area. This study provides a systematic assessment model for possible development strategies of culture and tourism based on developing The “Jhongli Ren Hai Temple” into a cultural tourism site with characteristics. The assessment model is constructed by VlseKriterijumska Optimizacija I Kompromisno Resenje (VIKOR) approach based on weighting of Entropy method under fuzzy decision making environment. This approach can effectively and conveniently measures the comprehensive performance of development strategies of culture and tourism. Besides, the results and processes are good references to the culture and tourism industry in taking the decisions making for planning activities or strategies of culture and tourism. The results of the survey indicate that the best development strategy for The “Jhongli Ren Hai Temple” is to conduct special exhibition activities, and even combine the other strategies such as tourism marketing, environment reconstruction and community empowerment as the second best development strategies. In addition, constructing image commercial district is the worst development strategy for The “Jhongli Ren Hai Temple”. This study suggests that it should preserve local cultural assets, develop cultural creative industry of The “Jhongli Ren Hai Temple”, and conduct special exhibition activities before festivals, and then it will achieve great development results.
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Chih-hao, Chen, and 陳志豪. "A Study of Niche Relationship between Red Turtle Dove (Streptopelia tranquebarica) and Spotted Dove ( Streptopelia chinensis) on Tung-hai University Campus, Taiwan." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/11169355786174985412.
Full textAbstract:
碩士東海大學
環境科學系
90
Abstract Red Turtle Dove Streptopelia tranquebarica and Spotted Dove Streptopelia chinensis are common native species in Taiwan, and coexist on TungHai University Campus. According to competition exclusion principle, if two competing species coexist in a stable environment, their resource will be partition, or one species will extinct. In Avian Ecology , the birds avoid competition by the isolation in spatial , temporal, and feeding. The aim of this study is to identify the niche relationship between Red Turtle Dove and Spotted Dove . The result showed that these two doves coexist in the same area by the isolation in the feeding and activity habitat selection. When they are both in breeding season , because the requirement of nest sites and food resources are increased, the niche overlap indexes are also increased. Because more detail data in diets descriptions are lacked, it is hard to identify the competitions between two species exist or not , and the degree of competition.
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Lyubimova, A., J. J. Garber, G. Upadhyay, A. A. Sharov, F. Anastasoaie, V. Yajnik, G. Cotsarelis, G. P. Dotto, Vladimir A. Botchkarev, and S. B. Snapper. "Neural Wiskott-Aldrich syndrome protein modulates Wnt signaling and is required for hair follicle cycling in mice." 2010. http://hdl.handle.net/10454/6073.
Full textAbstract:
The Rho family GTPases Cdc42 and Rac1 are critical regulators of the actin cytoskeleton and are essential for skin and hair function. Wiskott-Aldrich syndrome family proteins act downstream of these GTPases, controlling actin assembly and cytoskeletal reorganization, but their role in epithelial cells has not been characterized in vivo. Here, we used a conditional knockout approach to assess the role of neural Wiskott-Aldrich syndrome protein (N-WASP), the ubiquitously expressed Wiskott-Aldrich syndrome-like (WASL) protein, in mouse skin. We found that N-WASP deficiency in mouse skin led to severe alopecia, epidermal hyperproliferation, and ulceration, without obvious effects on epidermal differentiation and wound healing. Further analysis revealed that the observed alopecia was likely the result of a progressive and ultimately nearly complete block in hair follicle (HF) cycling by 5 months of age. N-WASP deficiency also led to abnormal proliferation of skin progenitor cells, resulting in their depletion over time. Furthermore, N-WASP deficiency in vitro and in vivo correlated with decreased GSK-3beta phosphorylation, decreased nuclear localization of beta-catenin in follicular keratinocytes, and decreased Wnt-dependent transcription. Our results indicate a critical role for N-WASP in skin function and HF cycling and identify a link between N-WASP and Wnt signaling. We therefore propose that N-WASP acts as a positive regulator of beta-catenin-dependent transcription, modulating differentiation of HF progenitor cells.