Fritz\u27s Freedom: Battle strategies for conquering temptation (Book Review)

A review of Fritz, E. (2015). Freedom: Battle strategies for conquering temptation. San Francisco, CA: Ignatious Press. 203 pp. $ 14.95. ISBN 978162164069

Vibration isolation and pressure compensation apparatus for sensitive instrumentation

A system for attenuating the inherent vibration associated with a mechanical refrigeration unit employed to cryogenically cool sensitive instruments used in measuring chemical constituents of the atmosphere is described. A modular system including an instrument housing and a reaction bracket with a refrigerator unit floated there between comprise the instrumentation system. A pair of evacuated bellows that "float' refrigerator unit and provide pressure compensation at all levels of pressure from seal level to the vacuum of space. Vibration isolators and when needed provide additional vibration damping for the refrigerator unit. A flexible thermal strap (20 K) serves to provide essentially vibration free thermal contact between cold tip of the refrigerator unit and the instrument component mounted on the IDL mount. Another flexible strap (77 K) serves to provide vibration free thermal contact between the TDL mount thermal shroud and a thermal shroud disposed about the thermal shaft

Research for counselling practice

In many professional fields, including counselling and education, there have been significant efforts to bring practice and research closer together. However, for each situation and each new practice problem and responsive research question, there is bridging to be done. This paper takes the form of an autoethnographic essay: it tells a story of the first author’s engagement in a small research project that offered opportunities to negotiate her way toward collaboration and respect as a researcher in her own community. As a school counsellor, she held concerns for the positioning of a small group of Pasifika students in the school. This research aimed to consider how the school might do better in serving the educational interests of these students and their families. The article focuses on the shaping effects of the research for the first author’s professional and personal life. Its argument is that her experiences as researcher have profoundly shaped the counsellor it is possible for her to be

Plant regulation of microbial enzyme production in situ

Soil extracellular enzymes regulate the rate at which complex organic forms of nitrogen (N) become bio-available. Much research has focused on the limitations to heterotrophic enzyme production via lab incubations, but little has been done to understand the limitations to enzyme production in situ. We created root and symbiotic mycelia exclusion treatments using mesh in-growth bags in the field to isolate the effect of roots and other portions of the microbial community on enzyme production. When fertilized with complex protein N we found increases in N-degrading enzyme concentrations only when root in-growth was allowed. No response was observed when complex N was added to root-free treatments. Expanding on economic rules of microbial element limitation theory developed from lab incubation data, we suggest this is due to active transport of labile carbon (C) from roots to associated microbial communities in root bags. Roots alleviate C-limitation of microbial enzyme synthesis, representing a trade off between plants and microbes- plant C for microbial derived N

The usefulness and application of fuzzy logic and fuzzy AHP in the materials finishing industry

It is suggested that fuzzy logic could occupy a more prominent role in the materials finishing industry. Whilst a number of applications have already been made to control finishing processes and help with decision making, there is clearly scope for extending the use of fuzzy logic in the industry. After surveying some of these applications, the background to fuzzy logic is described and its set theory explained. Finally, the steps involved in selecting an environmentally acceptable metal cleaning agent from possible alternatives using a fuzzy analytic hierarchy process (AHP) are described in detail. As illustration, two different sets of selection criteria ranking are considered for choosing (i) the best solvent for cleaning equipment to be used in oxygen service and (ii) for cleaning metal parts prior to further finishing treatment. This is an Accepted Manuscript of an article to be published by Taylor & Francis in Transactions of the IMF It will be available online:https://www.tandfonline.com/toc/ytim20/curren

Conceptual design and structural analysis of the spectroscopy of the atmosphere using far infrared emission (SAFIRE) instrument

The conceptual design and structural analysis for the Spectroscopy of the Atmosphere using Far Infrared Emission (SAFIRE) Instrument are provided. SAFIRE, which is an international effort, is proposed for the Earth Observing Systems (EOS) program for atmospheric ozone studies. A concept was developed which meets mission requirements and is the product of numerous parametric studies and design/analysis iterations. Stiffness, thermal stability, and weight constraints led to a graphite/epoxy composite design for the optical bench and supporting struts. The structural configuration was determined by considering various mounting arrangements of the optical, cryo, and electronic components. Quasi-static, thermal, modal, and dynamic response analyses were performed, and the results are presented for the selected configuration