206,963 research outputs found
Zoo-FISH in the European mole (Talpa europaea) detects all ancestral Boreo-Eutherian human homologous chromosome associations
No full textZoo-FISH with human whole-chromosome paint probes delineated syntenic association of human homologous chromosome segments 3-21, 14-15, 16-19, 4-8, 7-16 and 12-22 (twice) in the European mole (Talpa europaea, Talpidae, Eulipotyphla, Mammalia). These segment associations represent shared ancestral Boreo-Eutherian traits, half of which were previously not described for Eulipotyphla. The karyotype of the European mole acquired a minimum of 19 translocations and six inversions compared to the presumed Boreo-Eutherian ancestor. Copyright (c) 2006 S. Karger AG, Basel
Melatonin secretion in a strictly subterranean mammal, the Damaraland mole-rat (Cryptomys damarensis)
No full textSubterranean mammals inhabit an environment that is normally devoid of light and are therefore deprived of photoperiodic information that can be used to time important life-history events. An assessment was made of whether melatonin secretion in a strictly subterranean rodent, the Damaraland mole-rat Cryptomys damarensis, can be modified by photoperiod. In experiment 1, a clear diurnal rhythm of melatonin secretion in animals housed under a neutral photoperiod (12L:12D) was observed, with significantly higher melatonin concentrations in the dark compared to the light phase. The same diurnal melatonin rhythm was found 1 day after animals were transferred to either continuous light or continuous dark, suggesting that a circadian rhythm was maintained under acute exposure to light and dark. In experiment 2, melatonin secretion was monitored in a long (14L:10D) and short day (10L:14D) photoperiod and was found to be modified by the photoperiodic change. We therefore suggest that the Damaraland mole-rat possesses a circadian melatonin rhythm that can be physiologically modulated in response to photoperiod
On the dimensionality of the Avogadro constant and the definition of the mole
No full textThere is a common misconception among educators, and even some metrologists, that the Avogadro constant _N_~A~ is (or should be) a pure number, and not a constant of dimension *N*^–1^ (where *N* is the dimension amount of substance). Amount of substance is measured, and has always been measured, as ratios of other physical quantities, and not in terms of a specified pure number of elementary entities. Hence the Avogadro constant has always been defined in terms of the unit of amount of substance, and not vice versa. The proposed redefinition of the mole in terms of a fixed value of the Avogadro constant would cause additional conceptual complexity for no metrological benefit
Integracijska hiša kot ena izmed možnih nastanitvenih oblik za otroke brez spremstva s priznano mednarodno zaščito
No full textHydrological modeling of Mačkov graben using Flo-2D and HEC-HMS
No full textDiplomska naloga obravnava padavinsko prispevno območje Mačkovega grabna, ki leži v severozahodnem delu porečja Gradaščice in je eno od eksperimentalnih porečij Katedre za splošno hidrotehniko UL FGG. Za namen hidrološkega modeliranja Mačkovega grabna sta uporabljena dva različna programa, Flo-2D in HEC-HMS. Predstavljen je opis njunega razvoja, delovanja ter postopek izdelave modela. V nadaljevanju je predstavljeno merjenje pretokov v naravnih vodotokih s poudarkom na metodi razredčenja ter instrumentu Flo-tracer.
Glavni del rezultatov predstavlja izdelava hidrološkega modela v programih Flo-2D in HEC-HMS za porečje Mačkovega grabna. Pri modelu Flo-2D je poudarek na določitvi topografije, vnosu padavin, izbiri metode izgub ter nastavitvi kontrolnih prametrov. Izdelava modela v HEC-HMS zahteva izdelavo modela povodja ter meteorološkega in kontrolnega modela. Sledilo je umerjanje obeh modelov na izbranih merjenih padavinskih dogodkih in pripadajočih hidrogramih odtoka.
Prikazana je primerjava modeliranih in izmerjenih hidrogramov za izbrane padavinske dogodke, s pomočjo koeficienta Nash-Sutcliffe pa ovrednotena natančnost obeh modelov v primerjavi z izmerjenimi vrednostmi. Za bolj natančnega se izkaže model v programu HEC-HMS, ki v povprečju dosega višje vrednosti koeficienta.The theme of this thesis is a basin of torrent Mačkov graben which is located in nortwestern part of Gradaščica River basin and is one of the experimental cathments of the Chair of hydrology and hydraulic engineering at UL FGG. With a goal to develop hydrologic model of Mačkov graben two different programs are used: Flo-2D and HEC-HMS. In the first part the development and functioning of both models is presented. It is followed by presentation about measuring water flows in natural torrents with emphasis on dilution method and Flo-tracer instrument.
The main part of results includes hydrological modeling using both programs. For the model in Flo-2D is important to correctly determine topography, rain data, loss method and control parameters. The model in HEC-HMS demands the basin, meteorological and control model. In the next step comparison of modeled hydrographs with measured ones was conducted for selected rainfall events.
At the end models were evaluated using Nash-Sutcliffe coefficient. The model in HEC-HMS demonstrates higher values of Nash-Sutcliffe coefficient than model in Flo-2D
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No full textIl libro raccoglie un lavoro condotto in poco più di tre anni con colleghi interni ed esterni all’accademia che si sono alternati nel tempo con l’obiettivo di formare la prima scuola di architettura degli interni e di arredamento a Valle Giulia, Università di Roma La Sapienza.Il testo traccia le linee guida della formazione dell’architetto di interior design e al contempo illustra la produzione del lavoro teorico, attuativo e di ricerca dei docenti e degli studenti del corso di laurea di cui sono stato presidente
RNA Sequencing Reveals Differential Expression of Mitochondrial and Oxidation Reduction Genes in the Long-Lived Naked Mole-Rat When Compared to Mice
No full textPubMed ID: 22073188This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
Propriedades geotécnicas de compressibilidade de uma argila mole de Itajaí-SC
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Civil, Florianópolis, 2014.No Brasil os depósitos de solos moles estão localizados ao longo de grande parte da região litorânea, incluindo a do Estado de Santa Catarina, onde é freqüente a observação de recalques devido a alta compressibilidade desses solos. Atualmente com o avanço da tecnologia através de pesquisas científicas e a grande ocupação urbana, as áreas de solos compressíveis antes evitadas para implantação de obras vêm sendo utilizadas como alternativas viáveis e se tornando cada vez mais comuns. Dessa forma, esta pesquisa tem como objetivo contribuir com o avanço científico através do conhecimento da estratigrafia do solo local, parâmetros geotécnicos e comportamento do adensamento de um solo mole, localizado no município de Itajaí-SC. No local de estudo é proposta a construção de um aterro visando a proteção contra cheias do Rio Itajaí-Açú, com reforço de geogrelhas e geodrenos para acelerar os recalques. Os parâmetros geotécnicos foram obtidos através de ensaios de campo, com sondagens SPT, CPT, CPTu e DMT, ensaios de laboratório com caracterização, adensamentos convencionais (SIC) e adensamento com deformação controlada (CRS) e também foram estudadas correlações empíricas. Por fim, os parâmetros geotécnicos alcançados foram comparados com outras pesquisas brasileiras. O comportamento do adensamento foi estudado através do cálculo de recalques por adensamento primário, monitoramento de recalques através da instrumentação geotécnica de campo e também por previsões de recalques finais através de aplicação de métodos gráficos. A estratigrafia do solo local é composta por intercalações de camadas de argila e areia, de formação fluvio-marinha e impenetrável após 30m de profundidade. Foram estudadas as duas primeiras camadas de solo mole (Camada A e B), onde a Camada A se mostrou hetereogênea com relação aos parâmetros de compressibilidade após 2,6m de profundidade. Observou-se o pré-adensamento dos solos moles e cv variando de 10-3 a 10-5 e ch de 10-2 a 10-3cm²/s. A maioria dos parâmetros geotécnicos obtidos se enquadram na tendência de comportamento dos demais solos brasileiros e catarinenses estudados. Os recalques monitorados alcançaram 78% dos calculados e os previstos através de métodos gráficos alcançaram de 90 a 133% dos recalques medidos. Dessa forma, verificou-se que existe a tendência de estabilização dos recalques no local de estudo.Abstract : In Brazil the deposits of soft soils are located along the coast, including the state of Santa Catarina, which is frequently observed in settlements due to the high compressibility of these soils. Currently with the advancement of technology through scientific research and the large urban settlements, areas of compressible soils, that first avoided the implementation of works, have been used as a viable alternative and are becoming increasingly common. Thus, this research aims to contribute to scientific advancement through studying the local soil in stratigraphic and geotechnical parameters and the density behavior of a soft soil, located in the city of Itajaí-SC. This study proposed to build a landfill in order to hedge against flooding of the River Itajaí-Acu reinforced with "geogrelhas" and "geodrenos" to accelerate settlements. Geotechnical parameters were obtained through field trials, with polls SPT, CPT, CPTu e DMT, laboratory characterization with Standard Incremental Consolidation (SIC) and Constant rate of Strain (CRS) , empirical correlations were also studied. Finally, the geotechnical parameters obtained were compared with other Brazilian studies. The densification behavior was studied by calculating settlements for thickening primary, monitoring of settlements through the geotechnical field instrumentation and also predictions of final settlements by application of graphical methods. The soil stratigraphy of the site consists of inserted layers of clay and sand, forming fluvial-marine and impenetrable soil after 30m deep. The first two layers of soft soil (Layer A and B) which the layer A has been shown with respect the heterogeneous compressibility parameters after 2.6 m in depth, were studied. Observed the pre-consolidation of soft soils and horsepower ranging from 10-3 to 10-5 and ch 10-2 of the 10-3cm²/s. Most geotechnical parameters obtained fall into the pattern of other Brazilian and Santa Catarina soils. Monitored repressions reached 78% of the calculated and the predicted graphical methods reached 90-133% of the measured settlements. Thus it was found that the tendency to stabilize at the study site repression
Gouvernance métropolitaine et transfrontalière, Action publique territoriale : G. Saez, J.-Ph. Leresche, M. Bassand (dir.)
No full textMole Luc. Gouvernance métropolitaine et transfrontalière, Action publique territoriale : G. Saez, J.-Ph. Leresche, M. Bassand (dir.). In: Pôle Sud, n°9, 1998. La "grande transformation" du Midi Rouge, sous la direction de William Genieys . pp. 151-153
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