The unsupported NiBa catalyst has been used in the CO2-SR (CO2 Storage and situ Regeneration with CH4) cyclic technology, which allows use of CO2 from combustion CH4 biogas order to produce enriched syngas streams. isotopic study transient regime, using 13CO2 CD4 instead 12CO2 CH4, respectively, performed discriminate different carbon hydrogen sources participation pathways involved whole proce...

background: sulfur compounds must be removed from petroleum because they contribute to environmental pollution. a strong alkaline solution such as caustic soda is used to remove these compounds. this spent caustic has high values for chemical oxygen demand (cod) concentration, ph and total sulfur. in this study, the regeneration and treatment methodology of sulfidic spent caustic was investigat...

Authors: GEORGE P. MARKIN is a research entomologist working with the Station's unit that is studying the biology of insects adversely affecting regeneration and establishment of western forests. He holds three degrees in entomology-a B. the time of this study, was a biological technician with the Station's field evaluation of chemical insecticides research unit at Davis, Calif. He earned a B. ...

the proximal to the distal segment. These cells may be formed by the breaking up of the myelon sheath, and it is asserted by some of the exponents of centrifugal regeneration that it is by means of these newly-organized myelon fragments that a chemical attraction is created which enables the new axons to find their way into the partly obliterated distal cord. All this doubt and speculation make...

Tissue engineering methods may be applied for the repair or regeneration of damaged teeth by inducing cell proliferation and differentiation in endodontic regeneration. One main factors tissue is scaffold used. An ideal should able to facilitate predictable development Thus, requires consideration composition functionality suited biological applications. The objective this study was assess morp...

Over the past decades, the field of chemical engineering has witnessed an increased interest in unsteady-state processes. Multifunctional, as well as intensified chemical processes, may exhibit instationary behaviour especially when based on periodical operating conditions. Ideally, instationary processes lead to a higher yield and increased selectivities compared to conventional steady-state f...

Cells undergo a variety of physiological processes, including division, migration and differentiation, under the influence of endogenous electrical cues, which are generated physiologically and pathologically in the extracellular and sometimes intracellular spaces. These signals are transduced to regulate cell behaviours profoundly, both in vitro and in vivo. Bioelectricity influences cellular ...

NAD+-dependent formate dehydrogenase (FDH, EC 1.2.1.2) is one of the best enzymes for the purpose of NADH regeneration in dehydrogenase-based synthesis of optically active compounds. Low operational stability and high production cost of native FDHs limit their application in commercial production of chiral compounds. The review summarizes the results on engineering of bacterial and yeast FDHs a...

In 85 frogs and 29 rats, the entire gastrocnemius muscle was removed. After removal of as much connective tissue as possible, about two-thirds of the remaining muscle was finely minced with a scissors. These minced fragments were orthotopically re-implanted, and the overlying skin was sutured. As the implanted muscle fragments degenerate, new muscle fibers appears in the regenerate. The proport...

Neuronal behaviour is profoundly influenced by extracellular stimuli in many developmental and regeneration processes. Understanding neuron responses and integration of environmental signals could impact the design of successful therapies for neurodegenerative diseases and nerve injuries. Here, we have investigated the influence of localized extracellular cues on polarization (i.e. axon formati...