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Showing 1 to 20 of 23 for “"BTX"”.

  1. BTX extraction by sulfolane in a mixer-settler cascade

    Fandary, Mohamad S.H.Aston University1988

    … of the aromatics, benzene, toluene and xylene (BTX) using different commercial solvents, and to mixer-settler design and performance, has been reviewed. Liquid-liquid equilibria of the ternary systems: hexane-benzene-sulfolane, n-heptane-toluene-sulfolane, and octane-xylene-sulfolane were …

    aston Repository record

  2. The Kinetics, Biochemical Patterns, and Microbial Ecology in Multiredox (Anoxic, Microaerobic, Aerobic) Activated Sludge Systems Treating BTX Containing Wastewater

    Ma, GuihuaVirginia Tech1999

    BTX biodegradation rates, biochemical expression patterns and microbial ecology were studied under anoxic (denitrifying), anoxic/microaerobic/aerobic, and anoxic/microaerobic conditions in activated sludge sequencing batch reactors. The studies showed that toluene and m-xylene were denitrified via …

    vt Repository record

  3. Acute and Chronic Effects of Botulinum Toxin Type-A on the structure and Function of the Quadriceps Femoris Muscles of New Zealand White Rabbits

    Fortuna, RafaelGraduate Studies2015

    Botulinum toxin type-A (BTX-A) injections have become a common treatment modality for a variety of neuromuscular disorders with the primary aim to relax spastic muscles, for example, in children with cerebral palsy, or following a stroke. Once injected, BTX-A prevents acetylcholine release at the …

    calgary Repository record

  4. A DOAS Study on the Oxidation Mechanism of Aromatic Hydrocarbons under Simulated Atmospheric Conditions

    Volkamer, RainerUniversität Heidelberg

    … Kohlenwasserstoffe (Benzol, Toluol, p-Xylol (BTX) und 1,3,5-Trimethylbenzol (TMB)) zu verbessern. Diese Mechanismen gelten als Hauptunsicherheitsfaktoren in Chemie-Modellen zur Erfassung der Photooxidantienbildung aus Stadtluft. Differentielle Optische Absorptions Spektroskopie (DOAS) wurde in …

    heid-diss Repository record

  5. A Study of the Patterns, Stoichiometry, and Kinetics of Microbial BTX Degradation Under Denitrifying Conditions by an Activated Sludge Consortium Receiving a Mixed Waste

    Fettig, James DrewVirginia Tech1998

    The patterns, stoichiometry, and kinetics of microbial benzene, toluene, p-xylene, m-xylene, and o-xylene degradation by a denitrifying activated sludge consortium was investigated in a sequencing batch reactor (SBR) receiving a mixed waste. After six months of acclimation, toluene and m-xylene …

    vt Repository record

  6. Osteocyte Activity and Skeletal Muscle Relative Gene Expression Profiling After Short-term Muscle Paralysis

    Gelbs, Michelle2021

    … rats were injected with botulinum toxin A (BTX, n=12) in the right hindlimb muscles, while external control rats (CTRL, n=12) were similarly injected using a saline solution. Animals then underwent gait and digit analyses to quantify the degree of paralysis. One-week post-injection, …

    cuny Repository record

  7. Sviluppo di tecniche di analisi ifenate per la quantificazione di biomarcatori di esposizione a tossici ambientali: gli acidi mercapturici

    Indiveri, Paolo <1977>Alma Mater Studiorum - Università di Bologna2009

    … compounds (benzene, toluene, and o-xylene –“BTX”) were analysed with a liquid chromatography coupled to electrospray ionisation-mass spectrometry (μHPLC-ESI-MS/MS) method for the simultaneous quantitative detection of the BTX exposure biomarker SPMA, SBMA and o-MBMA in human urine. Urinary …

    bologna Repository record

  8. Dystonien mit Beteiligung der mastikatorischen Muskulatur -Eine retrospektive Analyse

    Specht, Katharina2012

    … klinischen Bild entsprechend wurden wiederholt BTX-Injektionen (Botox®), in die betroffenen Muskeln durchgeführ t, wobei die von uns applizierten Dosen geringfügig unterhalb der Empfehlungen in der Literatur lagen. Wir verzeichneten eine Nebenwirkungsrate von 8,21% und eine durchschnittliche …

    goettingen Repository record

  9. Botulinumtoxin A als mögliche therapeutische Option zur Behandlung der allergischen und idiopathischen Rhinitis - Ergebnisse einer randomisierten, doppelblinden, placebokontrollierten Studie

    Junghans, Katharina2012

    … wurden randomisiert in zwei Gruppen eingeteilt (BTX-A (B) oder Placebo (K)); zwei weitere, gemischte Gruppen (BK, KB) enthielten die Patienten, welche nach Ausbleiben eines positiven Effektes der ersten Behandlung nach 1 Woche die Alternativsubstanz bekommen hatten. Die Änderungen der Symptome …

    goettingen Repository record

  10. Technical and economic assessment of renewable hydrogen production and utilization for the transportation sector

    Li, YunfeiUniversity College Cork2024

    … concepts of power-to-x (PtX) and biomass-to-x (BtX) to produce renewable CH4, CH3OH, NH3, and F-T fuels. Following the numerical calculations of mass and energy flows for these technological pathways, a techno-economic analysis was performed for each pathway, providing a comprehensive assessment …

    cork Repository record

  11. Evaluación de la exposición a solventes orgánicos en pintores de carros de la ciudad de Bogotá

    Palma, Ruth Marien, Briceño Ayala, LeonardoUniversidad del Rosario2013

    … concentraciones de benceno, tolueno y xileno (BTX) en aire, se aplicó una encuesta individual y se midieron en orina, los ácidos fenil mercaptúrico, hipúrico, orto-para metilhipúrico como metabolitos de benceno, tolueno y xileno. Los resultados de las mediciones y de la encuesta se …

    rosario Repository record

  12. Conversion of n-pentenes over H-ZSM-5

    Cowley, MicheleDepartment of Chemical Engineering2002

    … Benzene, toluene, xylenes and ethylbenzene (BTX+EB) are good or even better octane boosters, although the use of benzene is limited due to its carcinogenic nature. From an industrial point of view, these compounds are therefore of importance. The conversion of I-pentene over H-ZSM-5 zeolite …

    cape-town Repository record

  13. Obtención de compuestos aromáticos a partir de furanos y olefinas mediante reacciones catalíticas en fase gas

    Gancedo Verdejo, Juan2023

    … aromáticos (monocíclicos -conocidos como BTX- y naftalenos) mediante un proceso renovable y sostenible ha suscitado un gran interés en la comunidad científica, considerándose uno de los procesos productivos prioritarios para disminuir la dependencia de los recursos fósiles. En este …

    oviedo Repository record

  14. Vigilancia médica para los trabajadores expuestos a benceno, tolueno y xileno

    Fonseca Patiño, Paola Andrea, Heredia Villarroya, Jose Alejandro, Navarrete Tarquino, Diana MarcelaUniversidad del Rosario2010

    … expuestos a hidrocarburos aromáticos BTX. Para este propósito este estudio señalara las directrices a seguir para implementar el programa de vigilancia médica incorporando los aspectos clínicos y de diagnóstico de laboratorio para generar estrategias oportunas que conllevan al …

    rosario Repository record

  15. Skeletal adaptation to reduced mechanical loading

    Eliman, RachelMassachusetts Institute of Technology2014

    … skeletal health in mice, using botulinum toxin (BTX) to induce muscle paralysis and hindlimb unloading to eliminate external loading on the hindlimbs, alone and in combination. BTX led to greater bone loss than hindlimb unloading, while the combination of interventions led to the most detrimental …

    mit Repository record

  16. Skeletal adaptation to reduced mechanical loading

    Ellman, RachelMassachusetts Institute of Technology2014

    … skeletal health in mice, using botulinum toxin (BTX) to induce muscle paralysis and hindlimb unloading to eliminate external loading on the hindlimbs, alone and in combination. BTX led to greater bone loss than hindlimb unloading, while the combination of interventions led to the most detrimental …

    mit Repository record

  17. Estudo de zeólitas sintetizadas a partir do resíduo da extração de lítio e da cinza do bagaço de cana na reforma catalítica do n-octano

    Machado, Matheus Marinho2017

    … que possuem alto valor comercial, tais como BTX (Benzeno, Tolueno e Xileno). Dentre os catalisadores empregados na reforma catalítica de nafta, a utilização de zeólitas contendo platina como metal ativo, tem se mostrado eficiente. Em inúmeros estudos utilizando a zeólita L como suporte se …

    brazil-uff Repository record

  18. Aromatization of alkenes by gallium/H-ZSM-5 zeolite catalysts

    Nash, Robin JohnCentre for Catalysis Research1994

    … aromatics, mainly benzene, toluene and xylenes (BTX) [Guisnet and Gnep, 1992]. As a result of the Fischer-Tropsch process used by SASOL Ltd., South Africa is in an internationally unique position, in that it has a surplus of long chain linear alkenes with carbon numbers in the range C6-C8 . There …

    cape-town Repository record

  19. Variations in the biodegradation potential of toluene with increasing depth in an unsaturated subsurface environment

    Gullic, David BryanVirginia Tech1990

    … to investigate the biodegradation potential of BTX compounds in unsaturated soils under aerobic and anaerobic conditions. Toluene was used as a model compound at concentrations of 100 to 200 mg/L. An uncontaminated, groseclose soil ranging in depth from 0 to 18 feet was used in order to observe …

    vt Repository record

  20. Caracterización de la interacción entre el anticonvulsivo Lamotrigina y el receptor de acetilcolina nicotínico

    Vallés, Ana Sofía2008

    … de ligazón de I125 unido a la a-bungarotoxina (a-BTX), antagonista cuasi-irreversible del AChR, y estudios adicionales de microscopía de fluorescencia y fluorescencia en cubeta. El Capítulo 3 de esta Tesis tuvo como objetivo la obtención de un sistema celular de mamífero que expresase en forma …

    uns-ar Repository record

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