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Search Results: 1 - 10 of 325308 matches for " Moira S. Vayda "
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Feasibility of Dual-Task Gait Training for Community-Dwelling Adults after Stroke: A Case Series
Prudence Plummer,Raymond M. Villalobos,Moira S. Vayda,Myriam Moser,Erin Johnson
Stroke Research and Treatment , 2014, DOI: 10.1155/2014/538602
Abstract: This case series explored the feasibility and efficacy of cognitive-motor dual-task gait training in community-dwelling adults within 12 months of stroke. A secondary aim was to assess transfer of training to different dual-task combinations. Seven male participants within 12 months of stroke participated in 12 sessions of dual-task gait training. We examined single and dual-task performance in four different dual-task combinations at baseline, after 6 and 12 sessions, and if possible, at 1-month followup. Feasibility was assessed by asking participants to rate mental and physical fatigue, perceived difficulty, anxiety, and fear of falling at the end of each session. Five of the seven participants demonstrated reduced dual-task cost in gait speed in at least one of the dual-task combinations after the intervention. Analysis of the patterns of interference in the gait and cognitive tasks suggested that the way in which the participants allocated their attention between the simultaneous tasks differed across tasks and, in many participants, changed over time. Dual-task gait training is safe and feasible within the first 12 months after stroke, and may improve dual-task walking speed. Individuals with a combination of physical and cognitive impairments may not be appropriate for dual-task gait training. 1. Introduction Cognitive-motor dual-task interference, defined as the decrement in performance that occurs when cognitive and motor tasks are performed simultaneously, has been well established in people after stroke [1–9]. This growing body of research has demonstrated significant dual-task decrements in gait speed [1, 5, 8], stride length [5, 8], cadence [6, 8], stride duration [2, 4, 8], and double limb support duration [1, 7]. In other words, compared to single-task walking, when individuals with stroke perform a cognitive task while walking they are less stable and take shorter, slower steps, resulting in a dramatic cost on gait speed. Gait-related dual-task deficits persist in community-dwelling stroke survivors many months after discharge from rehabilitation [3, 5, 8]. Since walking in the community is often performed concurrently with cognitive tasks, such as remembering directions or engaging in social interactions, a reduced capacity for dual-task walking may restrict the degree to which a person is able to physically function and participate in their life roles. Conventional rehabilitation does not appear to adequately address gait-related dual-task interference. For example, in a longitudinal study of cognitive-motor interference, Cockburn and
Effect of Ghrelin on Hepatic IGF-Binding Protein-1 Production
Moira S. Lewitt
ISRN Obesity , 2013, DOI: 10.1155/2013/751401
Abstract:
Effect of Ghrelin on Hepatic IGF-Binding Protein-1 Production
Moira S. Lewitt
ISRN Obesity , 2013, DOI: 10.1155/2013/751401
Abstract: Ghrelin plays key roles in energy homeostasis by central and peripheral actions that include effects on insulin signalling pathways in liver. Insulin is an important inhibitor of production by hepatocytes of insulin-like growth factor-binding protein-1 (IGFBP-1) which has an endocrine role to inhibit IGF availability. The effects of ghrelin, insulin, an AMPK activator, and an AMPK inhibitor on IGFBP-1 secretion were studied in H4-II-E rat liver cells. Ghrelin (100?nM) blocked the inhibitory effect of a maximally effective concentration of insulin (10?ng/mL) on IGFBP-1 secretion during a 5?h incubation period ( ) in the absence and presence of an AMPK inhibitor. Ghrelin, alone, had no effect on IGFBP-1 production, but enhanced secretion independently of insulin under conditions of AMPK activation ( ). In conclusion, IGFBP-1 is identified as a novel target of ghrelin action in liver that may contribute to its metabolic effects in obesity. 1. Introduction Insulin-like growth factor-binding protein-1 (IGFBP-1) is a member of a family of six IGFBPs, which have effects on cell metabolism, motility, growth, and survival via IGF-dependent and -independent mechanisms [1]. Liver is the most important source of IGFBP-1 in the human circulation and hepatic Igfbp1 transcription is inhibited by the action of portal insulin [2]. As a consequence, there is an inverse relationship between circulating insulin and IGFBP-1 concentrations [2, 3]. This relationship is preserved in obesity [4]. In adults with type 2 diabetes, however, there is an upward shift in the regression line so that IGFBP-1 levels are higher than expected for a given insulin concentration [3]. This is consistent with a decrease in hepatic insulin sensitivity or a reduction in hepatic insulin extraction [3], or an increase in factors that stimulate IGFBP-1 directly, including pro-inflammatory cytokines [5]. Although IGFBP-1 levels in simple obesity are appropriately low for the prevailing hyperinsulinemia, in patients with obesity due to the Prader-Willi syndrome, IGFBP-1 concentrations are not suppressed [6]. Interestingly, circulating levels of the gut peptide ghrelin are also elevated in this syndrome [7, 8], whilst they are low in simple obesity [9, 10]. Like IGFBP-1 [11], ghrelin has a glucose counter-regulatory role [12]. Ghrelin is essential for blood glucose control in starvation [13, 14]. These metabolic effects are mediated in part by a central stimulatory effect of ghrelin on appetite and GH release and in part by peripheral actions on insulin secretion and insulin sensitivity, and hepatic
Obsessed with grasses?: The case of mara Dolichotis patagonum(Caviidae: Rodentia)
SOMBRA,MOIRA S.; MANGIONE,ANTONIO M.;
Revista chilena de historia natural , 2005, DOI: 10.4067/S0716-078X2005000300004
Abstract: the diet of mara (dolichotis patagonum, zimmeraman 1780) within the limits of sierra de las quijadas national park (san luis, argentina) is described. other studies regarding mara?s diet showed that mara, feeds on different species of grasses and shrubs. however, there is controversy regarding the proportions of these items in the diet or whether this proportion varies seasonally. considering mara?s body size, anatomical features and physiology, we suggest that mara feeds on grasses in a greater proportion than shrubs and forbs. moreover, giving that in this region precipitation varies considerably between seasons; it is also expected to find a correlation between the diet of mara and seasons. fecal pellets of mara were collected during four periods including two dry, and two wet seasons. relative frequency of each item in scats was determined by microhistological analysis. results support the hypothesis that mara shows preference for grasses, despite they are less available than shrubs and forbs and that this preference remains constant through seasons regardless of the precipitation regime. the characteristics of mara?s diet and the ecological implications of these findings are discussed
Obsessed with grasses?: The case of mara Dolichotis patagonum(Caviidae: Rodentia) Obsesionada con gramíneas?: El caso de mara Dolichotis patagonum (Caviidae: Rodentia)
MOIRA S. SOMBRA,ANTONIO M. MANGIONE
Revista chilena de historia natural , 2005,
Abstract: The diet of mara (Dolichotis patagonum, Zimmeraman 1780) within the limits of Sierra de las Quijadas National Park (San Luis, Argentina) is described. Other studies regarding mara’s diet showed that mara, feeds on different species of grasses and shrubs. However, there is controversy regarding the proportions of these items in the diet or whether this proportion varies seasonally. Considering mara’s body size, anatomical features and physiology, we suggest that mara feeds on grasses in a greater proportion than shrubs and forbs. Moreover, giving that in this region precipitation varies considerably between seasons; it is also expected to find a correlation between the diet of mara and seasons. Fecal pellets of mara were collected during four periods including two dry, and two wet seasons. Relative frequency of each item in scats was determined by microhistological analysis. Results support the hypothesis that mara shows preference for grasses, despite they are less available than shrubs and forbs and that this preference remains constant through seasons regardless of the precipitation regime. The characteristics of mara’s diet and the ecological implications of these findings are discussed En este trabajo se describe la dieta de mara (Dolichotis patagonum Zimmeraman 1780) en el Parque Nacional Sierra de las Quijadas (San Luis, Argentina). Los estudios realizados sobre su dieta indican que se alimenta de varias especies de gramíneas y arbustos. Sin embargo, existe cierta controversia acerca de la proporción en que se presentan estos ítemes, y si las mismas varían estacionalmente. En base al tama o corporal de mara, y a sus características anatómicas y fisiológicas se propone que, mara consume una mayor proporción de gramíneas que de otras hierbas no graminiformes y dicotiledóneas en general. Además esperamos una variación estacional de la dieta, correlacionada a una posible variación estacional en los recursos alimentarios asociada a las precipitaciones. Se colectaron muestras de heces correspondientes a cuatro estaciones en el parque, dos estaciones secas y dos lluviosas. Mediante análisis microhistológico se determinó la proporción de cada ítem medido como frecuencia de aparición en las heces. Los resultados apoyan la hipótesis de un consumo preferencial de gramíneas por parte de mara. Las gramíneas aparecen en mayor proporción en la dieta a pesar de estar en menor disponibilidad en el hábitat y sin que el régimen de precipitación tenga algún efecto Se discuten las características de la dieta de mara y las implicancias ecológicas relacionadas con esta
Estudo piloto sobre alimentos que devem ser evitados nos portadores de psoríase
Festugato, Moira;
Anais Brasileiros de Dermatologia , 2011, DOI: 10.1590/S0365-05962011000600006
Abstract: fundament: psoriasis is a chronic inflammatory systemic disease mediated by immune factors. we will explore the foods that act on these factors contributing to psoriasis. as a systemic disease, which shares the same pathophysiological substrate with other comorbidities, diet also leads to worsening of comorbidities. objective: to indicate a group of foods that can act as a factor of manifestation and/or aggravation of psoriasis and, at the same time, enable strategies for individuals to introduce these foods to their diet. methods: 43 patients with various forms of psoriasis (excluding pustular and erythrodermic psoriasis) were selected and answered a questionnaire about their eating habits in the first visit, with special attention to the consumption of black coffee, black tea, chocolate, yerba mate, pepper, smoked foods, beef and flavor enhancer (monosodium glutamate). next, the patient was instructed to suspend alcoholic drinks and tobacco. results: beef is the most consumed food by patients followed by msg (monosodium glutamate), which exists in processed foods, yerba matte, black coffee, chocolate, smoked foods, pepper and black tea. 88.37% noticed reduced scaling and erythema, milder outbreaks during the year and improved quality of life; 11.63% (5 patients) did not notice any effects on the skin. conclusion: we found poor dietary intake in patients with psoriasis. in addition to receiving proper scientific advice, patients need to be educated regarding their eating habits for a better quality of life and as an adjuvant to the drug therapy.
LATERAL SURVIVAL: AN OT ACCOUNT
Moira Yip
International Journal of English Studies (IJES) , 2004, DOI: 10.6018/ijes.4.2.47971
Abstract: When laterals are the targets of phonological processes, laterality may or may not survive. In a fixed feature geometry, [lateral] should be lost if its superordinate node is eliminated by either the spreading of a neighbouring node, or by coda neutralization. So if [lateral] is under Coronal (Blevins 1994), it should be lost under Place assimilation, and if [lateral] is under Sonorant Voicing (Rice & Avery 1991) it should be lost by rules that spread voicing. Yet in some languages lateral survives such spreading intact. Facts like these argue against a universal attachment of [lateral] under either Coronal or Sonorant Voicing, and in favour of an account in terms of markedness constraints on feature-co-occurrence (Padgett 2000). The core of an OT account is that IFIDENTLAT is ranked above whatever causes neutralization, such as SHARE-F or *CODAF. laterality will survive. If these rankings are reversed, we derive languages in which laterality is lost. The other significant factor is markedness. High-ranked feature co-occurrence constraints like *LATDORSAL can block spreading from affecting laterals at all.
Proyecto de un servicio funcional a prestar en una biblioteca universitaria: "El Servicio de Información Departamental" de la Biblioteca Max von Buch (Universidad de San Andrés)
Moira Guppy
Información, Cultura y Sociedad , 2001,
Abstract: Este trabajo -elaborado para el Seminario "La organización de los Servicios al Público en la Biblioteca" (UBA, 1998)- describe el proyecto de un servicio a desarrollar en la Biblioteca Max von Buch de la Universidad de San Andrés. El "Servicio de Información Departamental" ofrecerá a los docentes e investigadores acceso a los recursos disponibles dentro de su área temática (Internet, bases de datos, índices de artículos de publicaciones periódicas, revistas en texto completo, series estadísticas, etc.) Estará elaborado en dos formatos: un cd-rom actualizado periódicamente, y una página Web en línea especialmente dise ada. Con la implementación de este servicio se logrará un gran ahorro de tiempo en la búsqueda, análisis, tratamiento y difusión de la información destinada a la investigación académica. This paper -presented at the seminary "Public Services Organization at the Library"- describes a project to be developed at the Max von Buch Library, Universidad de San Andrés. The "Academic Information Service" would be design to provide access to researchers and faculty to all the resources available whithin each discipline and research area in the Internet, databases, periodical indexes, full text periodicals, statistical data, etc. They will gain access to it from a cd-rom which would be updated periodically, and a web page specially designed. The implementation of this project would provide faculty with qualified information along with considerable time saving in their researches.
Deference or Interrogation? Contrasting Models for Reconciling Religion, Gender and Equality
Moira Dustin
Religion and Gender , 2012,
Abstract: Since the late 1990s, the extension of the equality framework in the United Kingdom has been accompanied by the recognition of religion within that framework and new measures to address religious discrimination. This development has been contested, with many arguing that religion is substantively different to other discrimination grounds and that increased protection against religious discrimination may undermine equality for other marginalized groups – in particular, women and lesbian, gay, bisexual and transgender (LGBT) people. This paper considers these concerns from the perspective of minoritized women in the UK. It analyses two theoretical approaches to reconciling religious claims with gender equality – one based on privileging, the other based on challenging religious claims – before considering which, if either, reflects experiences in the UK in recent years and what this means for gender equality.
Fragments of an Autobiography or Remembering in the House of Time: From London to Wisconsin, 1933–2010
Moira Roth
American Studies Journal , 2011,
Abstract: Moira Roth visited the US in the early 1950s for the first time and decided to settle in the country because she found American universities to be places of her calling. Being deeply attracted to the wide range of ethnic and cultural differences in American society, Roth has since strived for artistic expression and established friendships in all corners of the world. Roth’s memoir pieces span seven decades. They reflect upon encounters with refugees in her mother’s outside London home in World War II, the Bohemian culture in Northern California in the 1960s, and the impact on her of various feminist-inspired art projects in the 1970s and 1980s. We, her readers, find ourselves exploring these decades in the virtual presence of Moira Roth.
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