971 resultados para HM


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Adrián Cabedo Nebot y Patricia Infante Ríos (eds.). Contribución presentada al XL Simposio de la Sociedad Española de Lingüística, celebrado en el Centro de Ciencias Históricas y Sociales del CSIC (Madrid) entre el 7 y el 10 de febrero de 2011, con el que dicha Sociedad celebró su 40º aniversario

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Objective: Beta-hydroxy-beta-methylbutyrate (HM beta) is a metabolite of leucine widely used for improving sports performance. Although limp is recognized to promote anabolic or anti-catabolic effects on protein metabolism, the impact of its long-term use on skeletal muscle and/or genes that control the skeletal protein balance is not fully known. This study aimed to investigate whether chronic HM beta treatment affects the activity of GH/IGF-I axis and skeletal muscle IGF-I and myostatin mRNA expression. Design: Rats were treated with HK beta (320 mg/kg BW) or vehicle, by gavage, for 4 weeks, and killed by decapitation. Blood was collected for evaluation of serum insulin, glucose and IGF-I concentrations. Samples of pituitary, liver, extensor digitorum longus (EDL) and soleus muscles were collected for total RNA or protein extraction to evaluate the expression of pituitary growth hormone (GH) gene (mRNA and protein), hepatic insulin-like growth factor I (IGF-I) mRNA, skeletal muscle IGF-I and myostatin mRNA by Northern blotting/real time-PCR, or Western blotting. Results: Chronic HM beta treatment increased the content of pituitary GH mRNA and GH, hepatic IGF-I mRNA and serum IGF-I concentration. No changes were detected on skeletal muscle IGF-I and myostatin mRNA expression. However, the HIM-treated rats although normoglycemic, exhibited hyperinsulinemia. Conclusions: The data presented herein extend the body of evidence on the potential role of HM beta-treatment in stimulating GH/IGF-I axis activity. In spite of this effect, HM beta supplementation also induces an apparent insulin resistance state which might limit the beneficial aspects of the former results, at least in rats under normal nutritional status and health conditions. (C) 2010 Growth Hormone Research Society. Published by Elsevier Ltd. All rights reserved.

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Mode of access: Internet.

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Includes bibliographical references.

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Casenote considers meaning and impact of ruling of High Court in Hanchett Stamford v HM A.G. The decision of Mr Justice Lewison in Hanchett-Stamford v HM Attorney General and Dr William Johnston Jordan1 provides us with a useful analysis of the legal principles relating to the thorny issues of: (i) how unincorporated associations hold property; (ii) the applicability of the law of charities to unincorporated associations and (iii) the property rights of a declining membership upon the dissolution of such associations.

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While there is growing use of online counselling, little is known about its interactional organisation and how it compares to telephone counselling. This is despite past research suggesting that both counsellors and clients report the impact of the different modalities on the presentation and management of the counselling interaction. This paper compares the interactional affordances of telephone and online web counselling in opening sequences on Kids Help Line, a 24-hour Australian counselling service for children and young people up to the age of 25. We examine two ways that counsellors show active listening through response tokens and formulations. The analysis describes how counsellors’ use of minimal response tokens facilitate the clients’ problem presentation and are used in the management of turn taking and sequence organisation. For example, counsellors use the response token Mm hm to show that they understand that the client’s unit of talk to is not yet complete, and to affirm or invite the client to continue speaking. Formulations in phone and web counselling are another way that counsellors display active listening to re-present stretches of the clients’ preceding talk. In phone and web counselling, however, the respective modalities can complicate matters of turn transition and sequence organisation. By examining actual phone and online counselling sessions, this paper offers empirical demonstrations of the interactional affordances of phone and online counselling, and shows how the institutional practice of active listening is accomplished across different counselling modalities

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Traffic related emissions have been recognised as one of the main sources of air pollutants. In the research study discussed in this paper, variability of atmospheric total suspended particulate matter (TSP), polycyclic aromatic hydrocarbons (PAH) and heavy metal (HM) concentrations with traffic and land use characteristics during weekdays and weekends were investigated. Data required for the study were collected from a range of sampling sites to ensure a wide mix of traffic and land use characteristics. The analysis undertaken confirmed that zinc has the highest concentration in the atmospheric phase during weekends as well as weekdays. Although the use of leaded gasoline was discontinued a decade ago, lead was the second most commonly detected heavy metal. This is attributed to the association of previously generated lead with roadside soil and re-suspension to the atmosphere. Soil related particles are the primary source of TSP and manganese to the atmosphere. The analysis further revealed that traffic sources are dominant in gas phase PAHs compared to the other sources during weekdays. Land use related sources become important contributors to atmospheric PAHs during weekends when traffic sources are at their minimal levels.