Wednesday, August 19, 2009
Tuesday, August 18, 2009
Monday, August 17, 2009
Sunday, August 16, 2009
Combination of ozonation with conventional aerobic oxidation for distillery wastewater treatment [An article from: Chemosphere] Review
This digital document is a journal article from Chemosphere, published by Elsevier in 2007. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Laboratory-scale experiments were conducted in order to investigate the effect of ozone as pre-aerobic treatment and post-aerobic treatment for the treatment of the distillery wastewater. The degradation of the pollutants present in distillery spent wash was carried out by ozonation, aerobic biological degradation processes alone and by using the combinations of these two processes to investigate the synergism between the two modes of wastewater treatment and with the aim of reducing the overall treatment costs. Pollutant removal efficiency was followed by means of global parameters directly related to the concentration of organic compounds in those effluents: chemical oxygen demand (COD) and the color removal efficiency in terms of absorbance of the sample at 254nm. Ozone was found to be effective in bringing down the COD (up to 27%) during the pretreatment step itself. In the combined process, pretreatment of the effluent led to enhanced rates of subsequent biological oxidation step, almost 2.5 times increase in the initial oxidation rate has been observed. Post-aerobic treatment with ozone led to further removal of COD along with the complete discoloration of the effluent. The integrated process (ozone-aerobic oxidation-ozone) achieved ~79% COD reduction along with decoloration of the effluent sample as compared to 34.9% COD reduction for non-ozonated sample, over a similar treatment period.
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Saturday, August 15, 2009
Long-term aerobic cometabolism of a chlorinated solvent mixture by vinyl chloride-, methane- and propane-utilizing biomasses [An article from: Journal of Hazardous Materials] Review
This digital document is a journal article from Journal of Hazardous Materials, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
The aerobic cometabolic biodegradation of a mixture of chlorinated aliphatic hydrocarbons (CAHs) including vinyl chloride (VC), cis- and trans-1,2-dichloroethylene (cis-DCE, trans-DCE), trichloroethylene (TCE), 1,1,2-trichloroethane (1,1,2-TCA) and 1,1,2,2-tetrachloroethane (1,1,2,2-TeCA) was investigated at both 25 and 17^oC by means of bioaugmented and non-bioaugmented sediment-groundwater slurry microcosm tests. The goals of the study were (i) to study the long-term aerobic biodegradation of a CAH mixture including a high-chlorinated solvent (1,1,2,2-TeCA) generally considered non-biodegradable in aerobic conditions; (ii) to investigate the efficacy of bioaugmentation with two types of internal inocula obtained from the indigenous biomass of the studied site; (iii) to identify the CAH-degrading bacteria. VC, methane and propane were utilized as growth substrates. The non-bioaugmented microcosms were characterized, at 25^oC, by an average 18-day lag-time for the direct metabolism of VC (accompanied by the cometabolism of cis- and trans-DCE) and by long lag-times (36-264 days) for the onset of methane or propane utilization (associated with the cometabolism of the remaining CAHs). In the inoculated microcosms the lag-phases for the onset of growth substrate utilization and CAH cometabolism were significantly shorter (0-15 days at 25^oC). Biodegradation of the 6-CAH mixture was successfully continued for up to 410 days. The low-chlorinated solvents were characterized by higher depletion rates. The composition of the microbial consortium of a propane-utilizing microcosm was determined by 16s rDNA sequencing and phylotype analysis. To the best of our knowledge, this is the first study that documents the long-term aerobic biodegradation of 1,1,2,2-TeCA.
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Friday, August 14, 2009
Combining anoxic denitrifying ability with aerobic-anoxic phosphorus-removal examinations to screen denitrifying phosphorus-removing bacteria [An article ... Biodeterioration & Biodegradation] Review
This digital document is a journal article from International Biodeterioration & Biodegradation, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Anaerobic-aerobic (or anaerobic-anoxic) enhanced biological phosphorus- removal (EBPR) processes were generally considered for P removal. However, some isolated polyphosphate-accumulating organisms (PAOs) or denitrifying P-removal bacteria (DPB) may have varied P-removal characteristics under different conditions. This study investigated proper screening procedures for isolating DPB from piggery sludge, enriched sludge, and winery sludge. We combined anoxic denitrifying ability with aerobic-anoxic P-removal examinations to screen the DPBs as compared with conventional anaerobic-aerobic and anaerobic-anoxic P-removal examinations. It was concluded that denitrification ability detection was recommended as the first step of screening. Subsequently, denitrifiers were cultured under an aerobic-anoxic single-stage process using oxygen and nitrate simultaneously as e^- acceptors to examine P-removal abilities. We chose single-stage aerobic-anoxic P-uptake denitrifiers (Types I and II) according to the purpose of P removal, whereas well-grown denitrifiers without obvious P removal might be induced by considerable PHB formation. Moreover, under anaerobic-anoxic P-removal examinations, most of the isolated DPBs had no obvious anaerobic P release, but did have significant anoxic P uptake. Pure isolated DPB cultures behaved like enriched sludge, which showed no anaerobic P release but achieved respective N- and P-removal efficiencies of 96% and 86%.
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Thursday, August 13, 2009
Wednesday, August 12, 2009
Tuesday, August 11, 2009
Monday, August 10, 2009
A Comparison of Physiologic Responses to Self-Paced Water Aerobics and Self-Paced Treadmill Running.(Brief Article)(Statistical Data Included): An article ... Research Quarterly for Exercise and Sport Review
This digital document is an article from Research Quarterly for Exercise and Sport, published by American Alliance for Health, Physical Education, Recreation and Dance (AAHPERD) on March 1, 2000. The length of the article is 406 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
Citation Details
Title: A Comparison of Physiologic Responses to Self-Paced Water Aerobics and Self-Paced Treadmill Running.(Brief Article)(Statistical Data Included)
Publication: Research Quarterly for Exercise and Sport (Refereed)
Date: March 1, 2000
Publisher: American Alliance for Health, Physical Education, Recreation and Dance (AAHPERD)
Volume: 71 Issue: 1 Page: A-28
Article Type: Brief Article, Statistical Data Included
Distributed by Thomson Gale
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Sunday, August 9, 2009
Gymnastics: Uneven bars, Balance beam, Floor (gymnastics), Vault (gymnastics), Pommel horse, Rings (gymnastics), Parallel bars, Horizontal bar, Rhythmic ... Trampolining, Power tumbling, Sport Aerobics Review
Gymnastics - Uneven bars, Balance beam, Floor (gymnastics), Vault (gymnastics), Pommel horse, Rings (gymnastics), Parallel bars, Horizontal bar, Rhythmic gymnastics, Gymnasium (ancient Greece), Trampolining, Power tumbling, Sport Aerobics, Acrobatic gymnastics, Rope climbing, Flying rings, Acrobatics, Trampolining terms, Fédération Internationale de Gymnastique, Parallettes, Artistic gymnastics, Gym floor cover, Trampette
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Saturday, August 8, 2009
Friday, August 7, 2009
Aerobic degradation of di- and trichlorobenzenes by two bacteria isolated from polluted tropical soils [An article from: Chemosphere] Review
This digital document is a journal article from Chemosphere, published by Elsevier in 2007. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Two polychlorinated biphenyl (PCBs)-degrading bacteria were isolated by traditional enrichment technique from electrical transformer fluid (Askarel)-contaminated soils in Lagos, Nigeria. They were classified and identified as Enterobacter sp. SA-2 and Pseudomonas sp. SA-6 on the basis of 16S rRNA gene analysis, in addition to standard cultural and biochemical techniques. The strains were able to grow extensively on dichloro- and trichlorobenzenes. Although they failed to grow on tetrachlorobenzenes, monochloro- and dichlorobenzoic acids, they were able to utilize all monochlorobiphenyls, and some dichlorobiphenyls as sole sources of carbon and energy. The effect of incubation with axenic cultures on the degradation of 0.9mM 1,4-dichlorobenzene, 0.44mM 1,2,3- and 0.43mM 1,3,5-trichlorobenzene in mineral salts medium was studied. Approximately, 80-90% of these xenobiotics were degraded in 200h, concomitant with cell increase of up to three orders of magnitude, while generation times ranged significantly (P<0.05) from 17-32h. Catechol 1,2-dioxygenase and catechol 2,3-dioxygenase activities were detected in crude cell-free extracts of cultures pre-grown with benzoate, with the latter enzyme exhibiting a slightly higher activity (0.15-0.17@mmolmin^-^1mg of protein^-^1) with catechol, suggesting that the meta-cleavage pathway is the most readily available catabolic route in the SA strains. The wider substrate specificity of these tropical isolates may help in assessing natural detoxification processes and in designing bioremediation and bioaugmentation methods.
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Thursday, August 6, 2009
Wednesday, August 5, 2009
The effect of adding external weight on the aerobic requirement of bench stepping.: An article from: Research Quarterly for Exercise and Sport Review
This digital document is an article from Research Quarterly for Exercise and Sport, published by American Alliance for Health, Physical Education, Recreation and Dance (AAHPERD) on December 1, 1996. The length of the article is 2788 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the supplier: The effect of adding external weight to the torso on the aerobic requirement of bench stepping exercises is investigated. Weight addition is then compared to other methods of changing the aerobic requirement. Results show that the aerobic requirement of bench stepping increases with increases in both bench height and external weight. Oxygen uptake (VO2) and heart rate (HR) increase at the same rate at all conditions indicates that the VO2/HR relationship of bench stepping is maintained despite the addition of an external weight.
Citation Details
Title: The effect of adding external weight on the aerobic requirement of bench stepping.
Author: Philip R. Stanforth
Publication: Research Quarterly for Exercise and Sport (Refereed)
Date: December 1, 1996
Publisher: American Alliance for Health, Physical Education, Recreation and Dance (AAHPERD)
Volume: v67 Issue: n4 Page: p469(4)
Distributed by Thomson Gale
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Tuesday, August 4, 2009
Aerobic exercise bestows a modest 5% rise in HDL. (Blunts Low-Fat Diet Dip).: An article from: Internal Medicine News Review
This digital document is an article from Internal Medicine News, published by International Medical News Group on January 15, 2002. The length of the article is 326 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
Citation Details
Title: Aerobic exercise bestows a modest 5% rise in HDL. (Blunts Low-Fat Diet Dip).
Author: Bruce Jancin
Publication: Internal Medicine News (Magazine/Journal)
Date: January 15, 2002
Publisher: International Medical News Group
Volume: 35 Issue: 2 Page: 20(1)
Distributed by Thomson Gale
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Monday, August 3, 2009
Work efficiency during step aerobic exercise in female instructors and noninstructors.: An article from: Research Quarterly for Exercise and Sport Review
This digital document is an article from Research Quarterly for Exercise and Sport, published by American Alliance for Health, Physical Education, Recreation and Dance (AAHPERD) on March 1, 1998. The length of the article is 3870 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the supplier: A research study was conducted to investigate work efficiency during aerobic exercises. Since habituation may adversely affects tolerance, performance and effectiveness when conducting a physical activity, determining the impact of aerobics in work efficiency is important. The study utilized female aerobic instructors and noninstructors. Statistical analysis of empirical data was conducted. Results revealed that aerobic instructors had higher work efficiency than noninstructors.
Citation Details
Title: Work efficiency during step aerobic exercise in female instructors and noninstructors.
Author: Macieji S. Buchowski
Publication: Research Quarterly for Exercise and Sport (Refereed)
Date: March 1, 1998
Publisher: American Alliance for Health, Physical Education, Recreation and Dance (AAHPERD)
Volume: v69 Issue: n1 Page: p82(7)
Distributed by Thomson Gale
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Sunday, August 2, 2009
The effects of cadence, impact, and step on physiological responses to aerobic dance exercise.: An article from: Research Quarterly for Exercise and Sport Review
This digital document is an article from Research Quarterly for Exercise and Sport, published by American Alliance for Health, Physical Education, Recreation and Dance (AAHPERD) on September 1, 1995. The length of the article is 5056 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the supplier: The physiological responses of female aerobic dancers to an aerobic dance routine varied by impact, step and cadence were investigated using several data acquisition procedures and metabolic measurement techniques. Results revealed that oxygen consumption was greater for high impact-less arm movement activity while increased heart rate was observed for low impact-more arm movement activity.
Citation Details
Title: The effects of cadence, impact, and step on physiological responses to aerobic dance exercise.
Author: Lynn A. Darby
Publication: Research Quarterly for Exercise and Sport (Refereed)
Date: September 1, 1995
Publisher: American Alliance for Health, Physical Education, Recreation and Dance (AAHPERD)
Volume: v66 Issue: n3 Page: p231(8)
Distributed by Thomson Gale
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