1,337 research outputs found
Partnership agreement
Whereas, Carl H. Nau, Stephen G. Rusk and Charles L. Swearingen have been for many years associated as partners under the firm name and style of NAU, RUSK & SWEARINGEN in the general practice of public accounting and have so conducted their business that a goodwill of great value has accrued thereto, and whereas, the said partners desire to provide for the indefinite continuance of said business under the aforesaid firm name through survivors and successors to the end that the goodwill thereof may be preserved, and whereas, the said partners further desire to so organize said business that competent and trusted employees may be taken in either as full partners or on a basis of participation in the profits, new, therefore, this memorandum signed the day and year noted at the end hereofWitnesseth: that the said Carl H. Nau, Stephen G. Rusk and Charles L. Swearingen have agreed upon the following Articles of Partnership. Original item in Boxno. 040
Comparative genomics and mutagenesis analyses of choline metabolism in the marine Roseobacter clade
Choline is ubiquitous in marine eukaryotes and appears to be widely distributed in surface marine waters; however, its metabolism by marine bacteria is poorly understood. Here, using comparative genomics and molecular genetic approaches, we reveal that the capacity for choline catabolism is widespread in marine heterotrophs of the marine Roseobacter clade (MRC). Using the model bacterium Ruegeria pomeroyi, we confirm that the betA, betB and betC genes, encoding choline dehydrogenase, betaine aldehyde dehydrogenase and choline sulfatase, respectively, are involved in choline metabolism. The betT gene, encoding an organic solute transporter, was essential for the rapid uptake of choline but not glycine betaine (GBT). Growth of choline and GBT as a sole carbon source resulted in the re-mineralization of these nitrogen-rich compounds into ammonium. Oxidation of the methyl groups from choline requires formyltetrahydrofolate synthetase encoded by fhs in R.pomeroyi, deletion of which resulted in incomplete degradation of GBT. We demonstrate that this was due to an imbalance in the supply of reducing equivalents required for choline catabolism, which can be alleviated by the addition of formate. Together, our results demonstrate that choline metabolism is ubiquitous in the MRC and reveal the role of Fhs in methyl group oxidation in R.pomeroyi
The HI Chronicles of LITTLE THINGS BCDs II: The Origin of IC 10's HI Structure
In this paper we analyze Very Large Array (VLA) telescope and Green Bank
Telescope (GBT) atomic hydrogen (HI) data for the LITTLE THINGS(1) blue compact
dwarf galaxy IC 10. The VLA data allow us to study the detailed HI kinematics
and morphology of IC 10 at high resolution while the GBT data allow us to
search the surrounding area at high sensitivity for tenuous HI. IC 10's HI
appears highly disturbed in both the VLA and GBT HI maps with a kinematically
distinct northern HI extension, a kinematically distinct southern plume, and
several spurs in the VLA data that do not follow the general kinematics of the
main disk. We discuss three possible origins of its HI structure and kinematics
in detail: a current interaction with a nearby companion, an advanced merger,
and accretion of intergalactic medium. We find that IC 10 is most likely an
advanced merger or a galaxy undergoing accretion.
1:Local Irregulars That Trace Luminosity Extremes, The HI Nearby Galaxy
Survey; https://science.nrao.edu/science/surveys/littlethingsComment: 36 pages, 17 figures, accepted for publication in The Astronomical
Journa
PM Motors for High Efficiency Applications
PM motors are suitable for nearly all applications, like pumps, elevators, compressors, blowers, extruders, generators, electric vehicles, servodrives, cooling towers, household appliances, etc. This paper will present some applications where the use of PM motors allowed for enhancements in energy efficiency and process quality
Motores de ímans permanentes para aplicações de alta eficiência
Motores de ímans permanentes (motores PM) podem ser utilizados em praticamente todas as aplicações, tais como bombas, elevadores, compressores, ventiladores, extrusoras, geradores, veículos elétricos, servoacionamentos, torres de refrigeração, eletrodomésticos, etc. Este artigo apresenta algumas aplicações para evidenciar que o uso de motores PM traz melhorias em eficiência energética e qualidade do processo
Fluorescent artificial receptor-based membrane assay (FARMA) for spatiotemporally resolved monitoring of biomembrane permeability
The spatiotemporally resolved monitoring of membrane translocation, e.g., of drugs or toxins, has been a long-standing goal. Herein, we introduce the fluorescent artificial receptor-based membrane assay (FARMA), a facile, label-free method. With FARMA, the permeation of more than hundred organic compounds (drugs, toxins, pesticides, neurotransmitters, peptides, etc.) through vesicular phospholipid bilayer membranes has been monitored in real time (µs-h time scale) and with high sensitivity (nM-µM concentration), affording permeability coefficients across an exceptionally large range from 10–10 cm s. From a fundamental point of view, FARMA constitutes a powerful tool to assess structure-permeability relationships and to test biophysical models for membrane passage. From an applied perspective, FARMA can be extended to high-throughput screening by adaption of the microplate reader format, to spatial monitoring of membrane permeation by microscopy imaging, and to the compartmentalized monitoring of enzymatic activity
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Case Studies IV: An Evaluation of Fishway Passage and Spawning Migration Survival for Alewife
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Innovations I: Using Sediment Core Analyses to Attempt to Quantify the Historical Impact of Spawning Alewife
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