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literature, the terms flow chemistry, continuous processing, and CM are often used interchangeably. These terms are certainly related as they involve the use of similar tools such as reactions in plug flow reactors (PFRs) or continuous stirred tank reactors

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Abstract  

Standards for instrumental neutron activation analysis (INAA) of biological materials are proposed. The standards are multielement solid solutions in phenol-formaldehyde resole resin (PFR) moulded as pellets weighing 30 to 50 mg. The concentrations of trace elements in the standards are selected so that, firstly, they are commensurable with their concentrations in the biological materials and, secondly, that the analytical lines of each of the elements incorporated in PFR are resolved with the aid of modern equipment. The principal standard contains 21 trace elements from among those of greatest interest for INAA of biological materials. This standard is recommended for work on high-resolution equipment. At the same time, standards of simpler trace element composition have been prepared and studied which can be used in work on simpler equipment or in solving particular problems in determination of certain groups of chemical elements.

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Abstract  

The integral production cross sections of242Cm and244Cm from irradiated samples of241Am and243Am have been measured, using the sensitive radiochemical techniques of alpha counting and alpha spectroscopy. The ion exchange procedures used to separate the curium produced in americium samples, following irradiation in the simulated P.F.R. and C.F.R. type neutron energy spectra available in the ZEBRA reactor, are described. The measured production cross sections are compared with theoretical predictions.

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theoretically go on under stechiometric conditions. This is valid, however, only in special reactors used for modeling the influence of external conditions on the process of combustion, for example, NIST WSR/PFR experimental facility, which is described in

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, including increased FC, in the cognitive network in the IGD group and increased FC in the reward circuitry in the ibGD group. Authors’ contribution SB, DHH, and PFR conceptualized and designed this study. DHH participated in

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and response to treatment. On the other hand, older age and fewer depression and ADHD symptoms may be positively associated with long-term recovery from IGD. Authors’ contribution DHH and PFR designed the study and wrote

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. Catalytic experiments Catalytic HDO of refined sunflower oil (SO)/food grade, containing 94 wt% C 18 fatty acids, mainly linoleic and oleic acids/was carried out in a high-pressure Plug flow reactor (PFR). The inner diameter of the flow reactor

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) and far-red (Pfr). The value of R/FR ratio directly modifies the phytochrome properties, activating or inhibiting the shadow avoidance reaction ( Franklin & Quail, 2010 ). Phytochrome also plays an important role in modulating signaling pathways during

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