998 resultados para Exposición Regional Valenciana (1ª. 1909: València)
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Neuropeptide Y (NPY) is a peptide with vasoconstrictor properties known to be present in the central nervous system as well as in sympathetic nerve endings and the adrenal medulla. The purposes of this study were to investigate in normotensive conscious rats the effects of nonpressor doses of NPY on cardiac output and regional blood flow distribution (using radiolabeled microspheres) as well as on plasma renin activity, plasma catecholamine and vasopressin levels. NPY (0.1 microgram/min) infused i.v. for 30 min modified neither blood pressure nor heart rate. Cardiac index was at comparable levels in NPY- as in vehicle-treated rats (17.7 +/- 1.6, n = 8, vs. 21.3 +/- 0.9 ml/min/100 g, n = 8, mean +/- S.E.M.). There was no significant difference in regional blood flow distribution between the two groups of rats, except for the large intestine (0.42 +/- 0.06 vs. 0.71 +/- 0.1 ml/min/g in NPY- and vehicle-treated rats, respectively, P less than .05). Basal plasma renin activity and catecholamine levels were not modified by NPY whereas plasma vasopressin levels were lower (P less than .05) in rats given NPY (0.76 +/- 0.3 pg/ml, n = 8) than in those having received the vehicle (2.2 +/- 0.4 pg/ml).(ABSTRACT TRUNCATED AT 250 WORDS)
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Primera guia de materials lapidis hispnics explotats en poca romana a la pennsula Ibrica. El treball recull 16 varietats, i t especial inters en la descripci de la geologia dels entorns de les explotacions. Entre els materials lapidis figuren, per exemple, marbres de la zona dEstremoz (Portugal), broccatello (tamb anomanat jaspi de la Cinta, procedent de Tortosa), marbres de la zona de Macael (Andalusia) i la pedra de Buixcarr (València). Tamb s'hi estudien amb detall els punts dexplotaci (pedreres) i les diverses aplicacions donades a cada tipus de pedra. El llibre s trilinge (angls, catal i castell), est molt ben illustrat (en color) i s'ha publicat com a catleg ampliat d'una exposici amb el mateix ttol muntada en el marc de la IX Asmosia Internacional Conference (Tarragona, juny del 2009).
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O objetivo deste trabalho foi avaliar o efeito da precipitao sobre a nutrio e a produo da laranjeira 'Valncia' de acordo com doses de N. O pomar foi plantado em 1994, em Latossolo Vermelho distrfico, com estao das chuvas entre outubro e maro, no noroeste do Paran. O delineamento experimental foi de blocos ao acaso com quatro repeties. Quatro doses de N, 30, 100, 170 e 240 kg ha-1, foram avaliadas em dois perodos de adubao: menor precipitao (primeira quinzena de agosto, primeira quinzena de outubro e segunda quinzena de maro) e maior precipitao (segunda quinzena de setembro, segunda quinzena de novembro e primeira quinzena de fevereiro). Foram avaliadas, nas safras agrcolas de 1999/2000 e 2001/2002, a produo de frutos e os teores de N foliar. A absoro de N no suficiente para a produo de frutos no perodo de menor precipitao. A adequada nutrio e produo de frutos com reduo da dose de N obtida no perodo de maior precipitao. A adubao nitrogenada deve ser parcelada em trs vezes entre 15 de setembro a 15 de fevereiro, coincidindo com a estao das chuvas.
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Audit report on the Great River Regional Waste Authority for the year ended June 30, 2014
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Portland cement concrete pavements have given excellent service history for Iowa. Many of these pavements placed during the 1920s and 1930s are still in service today. Many factors go in to achieve a long term durable concrete pavement. Probably the most important is the durability of the aggregate. Until the 1930s, pit run gravel was the most predominant aggregate used. Many of these gravels provided long term performance and their durability is dependent upon the carbonate fraction of the gravel. Later, limestone (calcium carbonate) and dolomite (calcium, magnesium carbonate) sources were mined across Iowa. The durability of these carbonate aggregates is largely dependent upon the pore system which can cause freeze thaw problems known as D-cracking, which was a problem with some sources during the 1960s. Also, some of these carbonate aggregates are also susceptible to deterioration from deicing salts. Geologists have identified the major components that affect the durability of these carbonate aggregates and sources are tested to ensure long term performance in Portland cement concrete. Air entrainment was originally put in concrete to improve scaling resistance. It is well known that air entrainment is required to provide freeze thaw protection in concrete pavements today. In Iowa, air entrainment was not introduced in concrete pavements until 1952. This research investigates properties that made older concrete pavements durable without air entrainment.
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O objetivo deste trabalho foi avaliar a distribuio do sistema radicular de laranjas 'Valncia' com porta-enxerto limo 'Cravo' (Citrus limonia Osbeck), com 36 anos de idade, irrigadas por autopropelido, em Latossolo Vermelho-Amarelo. Foram retiradas amostras de solo em dois raios ortogonais de cinco rvores, um na direo da linha da cultura e outro na entrelinha, at 60 cm de profundidade. A distribuio do sistema radicular foi determinada pela massa de matria seca das razes com dimetro igual ou menor que 1,5 mm. A camada de 0-40 cm apresentou o maior porcentual de razes, para ambos os raios de amostragem, com reduo na concentrao a partir do final da copa das rvores para as entrelinhas da cultura.
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Audit report on the Regional Utility Service Systems Commission for the year ended June 30, 2014
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Agreedupon procedures report on the Iowa Turkey Marketing Council for the period January 1, 2013 through December 31, 2014
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Agreed-upon procedures report on Eden Township in Fayette County, Iowa for the period July 1, 2003 through April 30, 2015
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En el presente proyecto La Trompeta en la C. Valenciana se pretende dar la visin global de la Trompeta dentro de la historia de la msica y ms especficamente dentro de Valencia. El trabajo incluye un apartado explicativo de los mejores maestros y pedagogos del instrumento, la ascendente historia de las Bandas en esta Comunidad, el repertorio e influencia que tienen los compositores de esta tierra para la Trompeta y el anlisis de las obras escogidas.
Audit report on the South Central Iowa Regional E-911 Service Board for the year ended June 30, 2005
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Audit report on the South Central Iowa Regional E-911 Service Board for the year ended June 30, 2005
Audit report on the South Central Iowa Regional E-911 Service Board for the year ended June 30, 2004
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Audit report on the South Central Iowa Regional E-911 Service Board for the year ended June 30, 2004
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In (1) H magnetic resonance spectroscopy, macromolecule signals underlay metabolite signals, and knowing their contribution is necessary for reliable metabolite quantification. When macromolecule signals are measured using an inversion-recovery pulse sequence, special care needs to be taken to correctly remove residual metabolite signals to obtain a pure macromolecule spectrum. Furthermore, since a single spectrum is commonly used for quantification in multiple experiments, the impact of potential macromolecule signal variability, because of regional differences or pathologies, on metabolite quantification has to be assessed. In this study, we introduced a novel method to post-process measured macromolecule signals that offers a flexible and robust way of removing residual metabolite signals. This method was applied to investigate regional differences in the mouse brain macromolecule signals that may affect metabolite quantification when not taken into account. However, since no significant differences in metabolite quantification were detected, it was concluded that a single macromolecule spectrum can be generally used for the quantification of healthy mouse brain spectra. Alternatively, the study of a mouse model of human glioma showed several alterations of the macromolecule spectrum, including, but not limited to, increased mobile lipid signals, which had to be taken into account to avoid significant metabolite quantification errors.
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Sustainable resource use is one of the most important environmental issues of our times. It is closely related to discussions on the 'peaking' of various natural resources serving as energy sources, agricultural nutrients, or metals indispensable in high-technology applications. Although the peaking theory remains controversial, it is commonly recognized that a more sustainable use of resources would alleviate negative environmental impacts related to resource use. In this thesis, sustainable resource use is analysed from a practical standpoint, through several different case studies. Four of these case studies relate to resource metabolism in the Canton of Geneva in Switzerland: the aim was to model the evolution of chosen resource stocks and flows in the coming decades. The studied resources were copper (a bulk metal), phosphorus (a vital agricultural nutrient), and wood (a renewable resource). In addition, the case of lithium (a critical metal) was analysed briefly in a qualitative manner and in an electric mobility perspective. In addition to the Geneva case studies, this thesis includes a case study on the sustainability of space life support systems. Space life support systems are systems whose aim is to provide the crew of a spacecraft with the necessary metabolic consumables over the course of a mission. Sustainability was again analysed from a resource use perspective. In this case study, the functioning of two different types of life support systems, ARES and BIORAT, were evaluated and compared; these systems represent, respectively, physico-chemical and biological life support systems. Space life support systems could in fact be used as a kind of 'laboratory of sustainability' given that they represent closed and relatively simple systems compared to complex and open terrestrial systems such as the Canton of Geneva. The chosen analysis method used in the Geneva case studies was dynamic material flow analysis: dynamic material flow models were constructed for the resources copper, phosphorus, and wood. Besides a baseline scenario, various alternative scenarios (notably involving increased recycling) were also examined. In the case of space life support systems, the methodology of material flow analysis was also employed, but as the data available on the dynamic behaviour of the systems was insufficient, only static simulations could be performed. The results of the case studies in the Canton of Geneva show the following: were resource use to follow population growth, resource consumption would be multiplied by nearly 1.2 by 2030 and by 1.5 by 2080. A complete transition to electric mobility would be expected to only slightly (+5%) increase the copper consumption per capita while the lithium demand in cars would increase 350 fold. For example, phosphorus imports could be decreased by recycling sewage sludge or human urine; however, the health and environmental impacts of these options have yet to be studied. Increasing the wood production in the Canton would not significantly decrease the dependence on wood imports as the Canton's production represents only 5% of total consumption. In the comparison of space life support systems ARES and BIORAT, BIORAT outperforms ARES in resource use but not in energy use. However, as the systems are dimensioned very differently, it remains questionable whether they can be compared outright. In conclusion, the use of dynamic material flow analysis can provide useful information for policy makers and strategic decision-making; however, uncertainty in reference data greatly influences the precision of the results. Space life support systems constitute an extreme case of resource-using systems; nevertheless, it is not clear how their example could be of immediate use to terrestrial systems.
Audit report on the South Central Iowa Regional E-911 Service Board for the year ended June 30, 2015
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Audit report on the South Central Iowa Regional E-911 Service Board for the year ended June 30, 2015
