Search results for "MARA"
showing 10 items of 343 documents
Microscale Marangoni actuation: All-optical and all-electrical methods
2006
We present experimental results from an all-optical microfluidic platform that may be complimented by a thin film all-electrical network. Using these configurations we have studied the microfluidic convective flow systems of silicone oil, glycerol, and 1,3,5-trinitrotoluene on open surfaces through the production of surface tension gradients derived from thermal gradients. We show that sufficient localized thermal variation can be created utilizing surface plasmons and/or engaging individually addressable resistive thermal elements. Both studies manipulate fluids via Marangoni forces, each having their unique exploitable advantages. Surface plasmon excitation in metal foils are the driving …
Anaerobic central metabolic pathways active during polyhydroxyalkanoate production in uncultured cluster 1Defluviicoccusenriched in activated sludge …
2009
A glycogen nonpolyphosphate-accumulating organism (GAO) enrichment culture dominated by the Alphaproteobacteria cluster 1 Defluviicoccus was investigated to determine the metabolic pathways involved in the anaerobic formation of polyhydroxyalkanoates, carbon storage polymers important for the proliferation of microorganisms in enhanced biological phosphorus removal processes. FISH-microautoradiography and post-FISH fluorescent chemical staining confirmed acetate assimilation as polyhydroxyalkanoates in cluster 1 Defluviicoccus under anaerobic conditions. Chemical inhibition of glycolysis using iodoacetate, and of isocitrate lyase by 3-nitropropionate and itaconate, indicated that carbon is …
Gozo a S. Gonzalo de Amarante, del Orden de Predicadores.
El full orlat. Grav. xil. enmarcat del sant, flanquejat per gerros amb flors. Text del goig a dues col. separades per banda.
''No Gender Difference in Peak Performance in Ultra-Endurance Swimming Performance - Analysis of the 'Zurich 12-h Swim' from 1996 to 2010''
2012
Eichenberger, Evelyn | Knechtle, Beat | Christoph, Alexander Rust | Knechtle, Patrizia | Lepers, Romuald | Rosemann, Thomas; International audience; ''The aims of the study were to [1] investigate the performance trends at the 'Zurich 12-h Swim' in Switzerland from 1996 to 2010; and [2] determine the gender difference in peak performance in ultra-endurance swimming. In total, 113 male and 53 female swimmers competed in this indoor ultra-endurance event while swimming in a heated pool. The number of male participants significantly increased (r(2) = 0.36, P = 0.04) over time while the participation of females remained unchanged (r(2) = 0.12, P = 0.26). In the age group 0.05). The best perform…
LA OCUPACIÓN SOLUTRENSE DEL ABRIGO DE LA BOJA (MULA, MURCIA, ESPAÑA)
2013
El relleno pleistoceno del Abrigo de la Boja (ADB) empieza con un nivel adscrito al Magdaleniense superior, seguido de un potente paquete con ocupación difusa bajo el cual se desarrolla una secuencia depositada durante el último máximo glacial caracterizada por una serie de estructuras de combustión, de tipo hogar plano/amorfo (open hearth), existiendo también hogares de cubeta. Destaca un hogar enlosado, completo y muy bien conservado, excavado en 2012 y adscrito provisionalmente al Solutreogravetiense. Los niveles solutrenses subyacentes son ricos en elementos de adorno, entre los cuales conchas perforadas de Littorina obtusata y Smaragdia viridis; su industria lítica incluye raspadores, …
Fumarate regulation of gene expression in Escherichia coli by the DcuSR (dcuSR genes) two-component regulatory system.
1998
ABSTRACT In Escherichia coli the genes encoding the anaerobic fumarate respiratory system are transcriptionally regulated by C 4 -dicarboxylates. The regulation is effected by a two-component regulatory system, DcuSR, consisting of a sensory histidine kinase (DcuS) and a response regulator (DcuR). DcuS and DcuR are encoded by the dcuSR genes (previously yjdHG ) at 93.7 min on the calculated E. coli map. Inactivation of the dcuR and dcuS genes caused the loss of C 4 -dicarboxylate-stimulated synthesis of fumarate reductase ( frdABCD genes) and of the anaerobic fumarate-succinate antiporter DcuB ( dcuB gene). DcuS is predicted to contain a large periplasmic domain as the supposed site for C 4…
El poderoso y su doble. Amis y Amiles en el teatro clásico español
2017
El propósito de este artículo es doble. Por un lado, se pretende estudiar dos muestras de la versión teatral española de la leyenda de Amis y Amiles, representada por La sutil maraña de los dos fieles y parescidos amigos Luis y Alejandro y los sucesos de Alejandro y cómo por su saber vino a ser rey de Egipto (BNE, mss. 15049) y Los pronósticos de Alejandre (BNE, mss. 16064) y su conexión con el capítulo 21 de los Siete Sabios de Roma. El análisis de la estructura métrica de estos dramas pone de manifiesto que debieron componerse durante las dos últimas décadas del siglo XVI. Por otro lado, se intenta profundizar en el contexto educativo del futuro Felipe III para explorar los significados q…
Fumarate respiration of Wolinella succinogenes: enzymology, energetics and coupling mechanism.
2002
Wolinella succinogenes performs oxidative phosphorylation with fumarate instead of O2 as terminal electron acceptor and H2 or formate as electron donors. Fumarate reduction by these donors ('fumarate respiration') is catalyzed by an electron transport chain in the bacterial membrane, and is coupled to the generation of an electrochemical proton potential (Deltap) across the bacterial membrane. The experimental evidence concerning the electron transport and its coupling to Deltap generation is reviewed in this article. The electron transport chain consists of fumarate reductase, menaquinone (MK) and either hydrogenase or formate dehydrogenase. Measurements indicate that the Deltap is generat…
INFODESK
2006
Similar cellular composition of induced sputum in Marathon and Half-Marathon runners
2013
In our previous studies, we reported increased neutrophil (PMN) differential counts in induced sputum of marathon (M) runners (Bonsignore et al, 2001). Conversely, increased bronchial epithelial cell (BEC) differential counts were found in half-marathon (HM) runners (Chimenti et al, 2010). To better understand the differences previously found between M and HM runners, we studied 11 non-asthmatic amateur athletes (HM n=6, M n=5, age: 44.5±6.7 yrs, race time: HM 101±18 min, M 218±35 min) participating to the 2012 Palermo Marathon. We collected induced sputum samples 4 to 5 days before the race (PRE), 2 hours after the race (RACE), and the following morning (POST). Induced sputum was processed…