BIOLOGICAL TREATMENT TO REMOVE COLOR AND TOXICITY OF EFFLUENT FROM THE MANUFACTURING OF NAVIPOL YELLOW GR

Navipol Yellow GR is an organic solvent azo dye manufactured by Sunbelt Corp. in Rock Hill, SC. The effluent generated from the manufacturing of this dye is highly colored, toxic, and contains trace solvents consisting of mixed xylene isomers and ethyl benzene. Traditional wastewater treatment systems are unable to remove the color and toxicity from the effluent. This study investigated using a sequential anaerobic / aerobic treatment system to decrease color and toxicity of the dye effluent. The anaerobic phase used bacteria cultures of Pseudomonas aeruginosa, Bacillus subtilis, Enterococcus faecalis, or Enterobacter aerogenes to decrease the color of the dye. The toxicity was decreased through aerobic treatment using Rhodococcus rodocorous or Escherichia coli. The results showed that color was decreased by an average of 47.5% after 24 hrs of anaerobic treatment. There was no significant difference among the four anaerobic bacteria tested. Toxicity was measured using Abratox bioluminescent toxicity assay. Toxicity was reduced significantly after 48 hrs of aerobic treatment. The greatest toxicity reduction came from samples containing R. rodocorous as compared to those containing E. coli

POW/MIC: Prisoners of Words/Missing in Canon: Liberating the Neglected British War Poets of The Great War.

Since the First World War ended in 1918 and anthologies began to emerge, limited attention has been paid to the poets of this era. While a few select male poets have achieved canonicity, women war poets of this era have fallen into enigmatic obscurity. The intention of this paper is to expound, explicate, and expose the difficulties relating to gaining entry into the canon of English literature, especially where the poets of The Great War are concerned. This paper discusses the absence of the most profound and foreshadowing poems written during the war through research of scholarly journals and out-of-print poems. The paper also seeks to prove that the defenses offered up which exclude certain poems in the anthologies have had repercussions extending into the twenty-first century. Beyond all human imagination, the excluded poetry of The Great War is languishing, wanting, and imploring for exploration and canonicity

Attitude Determination by Using Horizon and Sun Sensors

The Pointing and Alignment Workstation (PAWS) developed by Teledyne Brown Engineering (TBE) has successfully supported the first and second Atmospheric Laboratory for Applications and Science (ATLAS 1, 2) spacelab missions for NASA. The primary PAWS objective was to provide realtime pointing information to instruments whose line of-sight is dependent on Shuttle attitude and to study/quantify the causes and effects of Shuttle and payload pointing errors. In addition to Shuttle IMU attitude information, PAWS used atmospheric science sensors data to determine the spacecraft attitude. PAWS successfully achieved these goals by acquiring and processing data during the ATLAS 1, 2 mission. This paper presents the attitude determination algorithm real time processing, and results of post mission analysis. The findings of this study include the quality of the horizon sensor and IMU measurements as well as accuracy of attitude processor algorithm

Results of the Quasi-Steady Acceleration Environment from the STS-62 Missions

One of the clear benefits of conducting scientific research in space is to take advantage of the reduced acceleration environment. Many accelerometer packages have proven to accurately measure the acceleration environment at frequency levels above one Hz. However, for particular classes of experiments the quality of science returns is a direct function of the extremely low frequency (less than 0.01 Hz), quasi-steady acceleration environment. One class particularly interested in this acceleration regime is the group of crystal growth experimenters. These scientists are primarily interested in knowing the resultant quasi-steady acceleration vector at their respective crystal growth locations. The objective of many of these scientists is to minimize the amount of convective flow acting in a direction perpendicular to the growth axis of the crystal. Convective flow within the crystal can be induced by the direction and magnitude of the quasi-steady acceleration vector. Convective flows acting perpendicular to the growth axis of the crystal can cause nonuniformity within the crystal, thus reducing the quality of the results. The Orbital Acceleration Research Experiment (OARE), an accelerometer package hardmounted to the bottom of the payload bay of the orbiter Columbia (OV-102), has the capability of monitoring and recording the quasi-steady acceleration environment. This paper will describe the components that make up the on-orbit quasi-steady acceleration environment, detail how results from the OARE device were achieved, and compare modelled acceleration results with actual on-orbit OARE results from the STS-62 and STS-65 flights. A summary of the results will be provided along with possible recommendations of how to combine modelled and realtime quasi-steady accelerometer data for future Shuttle flights

The effects of exogenous melatonin on the plasma levels of interstitial cell stimulating hormone in sheep

There is an increasing body of evidence that the pineal gland acts as a neuroendocrine transducer, translating neural information about environmental lighting condition into hormonal information. In the rat, light controls the production of melatonin which acts via the hypothalamic-hypophyseal pathway to control the function of the gonads, A similar mechanism seems to operate in other laboratory animals. The effect of photoperiod on the onset of the breeding season in large animals such as sheep has been studied, but the mechanism by which light affects their reproduction has not been elucidated. To test the hypothesis that the mechanism by which light controls reproduction in sheep is similar to the mechanism that operates in rats, an experiment was conducted to determine the effects of melatonin on reproductive phenomena in sheep. A solid-phase radioimmunoassay was developed as a means of studying the effects of melatonin on serum interstitial cell stimulating hormone (ICSH). Twenty-eight ewe, ram and wether lambs were divided into a control and a treatment group. Treatment consisted of daily sub-cutaneous injections of 0.1 mg. melatonin per kilogram of body weight administered in propylene glycol. Treatment was initiated on the third day after birth and continued until autopsy just before the suspected onset of puberty. Melatonin in the doses employed caused a significant increase (P < .05) in ovarian weight in ewe lambs and a depression (P < .10) in castration-hypersecretion of ICSH in wether lambs. No other significant effects were observed. The role of melatonin in controlling reproductive phenomena in sheep is still not clear. The known effects of melatonin in rats could not be duplicated in sheep. It appears that the mechanism by which light controls reproduction in sheep is not similar to that which operates in rats. The solid phase radioimmunoassay developed for this experiment proved to be a rapid, sensitive and highly reliable technique for the determination of serum ICSH

Disability Related Sources of Income and Expenses: An Examination Among the Elderly in Canada

The primary purpose of this paper is to examine disability-related sources of income and expenses among high and low income older Canadians. Specifically, the paper attempts to answer three questions: Do low and high income seniors experience disability equally? Do low and high income seniors incur equal disability- related non-reimbursed expenses? And, Do low and high income seniors receive equal disability-related pensions and tax credits? The analysis is based on the Health and Activity Limitation Surveys of 1986 and 1991. Both surveys were cross-sectional, designed to gather information on disabilities and their impact on daily living. Among the seniors (those 65 and over), between 10.3% (men in 1986) and 23.2% (women in 1991) were classified as low income and about 40% reporting having at least one disability, compared to one-quarter of women and men of all ages. The analysis indicates that low income seniors are disadvantaged in that they experience more disability, incur more non-reimbursed expenses, and receive less in terms of disability- related pensions and credits than do high income seniors. It thus appears that interventions should be policy based rather than individual based.elderly; disability; income

The Second Conference on Lunar Bases and Space Activities of the 21st Century, volume 1

These papers comprise a peer-review selection of presentations by authors from NASA, LPI industry, and academia at the Second Conference (April 1988) on Lunar Bases and Space Activities of the 21st Century, sponsored by the NASA Office of Exploration and the Lunar Planetary Institute. These papers go into more technical depth than did those published from the first NASA-sponsored symposium on the topic, held in 1984. Session topics covered by this volume include (1) design and operation of transportation systems to, in orbit around, and on the Moon, (2) lunar base site selection, (3) design, architecture, construction, and operation of lunar bases and human habitats, and (4) lunar-based scientific research and experimentation in astronomy, exobiology, and lunar geology

The Second Conference on Lunar Bases and Space Activities of the 21st Century, volume 2

These 92 papers comprise a peer-reviewed selection of presentations by authors from NASA, the Lunar and Planetary Institute (LPI), industry, and academia at the Second Conference on Lunar Bases and Space Activities of the 21st Century. These papers go into more technical depth than did those published from the first NASA-sponsored symposium on the topic, held in 1984. Session topics included the following: (1) design and operation of transportation systems to, in orbit around, and on the Moon; (2) lunar base site selection; (3) design, architecture, construction, and operation of lunar bases and human habitats; (4) lunar-based scientific research and experimentation in astronomy, exobiology, and lunar geology; (5) recovery and use of lunar resources; (6) environmental and human factors of and life support technology for human presence on the Moon; and (7) program management of human exploration of the Moon and space

Ultra-wide Range Gamma Detector System for Search and Locate Operations

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