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https://www.readbyqxmd.com/read/28735207/nutrient-balancing-for-phytoremediation-enhancement-of-urea-manufacturing-raw-wastewater
#1
Sara Yavari, Amirhossein Malakahmad, Nasiman B Sapari, Saba Yavari, Eakalak Khan
Application of urea manufacturing wastewater to teak (Tectona grandis) trees, a fast growing tropical timber plants, is an environmentally-friendly and cost-effective alternative for treatment of nitrogen-rich wastewater. However, the plant growth is strongly limited by lack of phosphorus (P) and potassium (K) elements when the plants are irrigated with wastewater containing high concentration of nitrogen (N). A greenhouse experiment was conducted to optimize the efficiency of teak-based remediation systems in terms of nutrient balance...
July 20, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28731833/the-dishwater-menace-and-the-compromising-solution-healthy-drinking-spaces-and-the-public-good-in-post-prohibition-ontario
#2
Dan Malleck
This paper examines inter-bureaucracy tension, negotiation, and resolution in the case of the oversight of beverage room sanitation in Ontario in the 1930s and 1940s. Both the Liquor Control Board of Ontario (LCBO) and various public health authorities claimed authority over the health status of public drinking spaces. But the LCBO had legislative priority. The ensuing debates regarding health and cleanliness linked issues of beverage room glass sanitation to a biopolitical approach to public drinking. Developing a more scientifically sophisticated approach to beverage glass cleaning required a balancing of administrative priorities...
July 21, 2017: Canadian Bulletin of Medical History, Bulletin Canadien D'histoire de la Médecine
https://www.readbyqxmd.com/read/28728112/reductive-defluorination-of-perfluorooctanoic-acid-by-titanium-iii-citrate-with-vitamin-b12-and-copper-nanoparticles
#3
Yu-Chi Lee, Yi-Pei Chen, Meng-Jia Chen, Jeff Kuo, Shang-Lien Lo
Perfluorooctanoic acid (PFOA) is widespread in the environment, which causes serious health and safety concerns. A mechanistic study on reductive defluorination of PFOA by titanium(III) citrate in the presence of catalysts was conducted. Vitamin B12 was used to catalyze reduction reactions by shuttling electrons from a reducing agent (electron donor) to PFOA to produce a Co-carbon bond intermediates. In the presence of copper nanoparticles, a precursor complex, B12-C7F14COOH, adsorbed on the metal surface, followed by a hydrogenolytic reaction to form less-fluorinated products...
June 29, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28727890/surfactant-concentration-and-type-affects-the-removal-of-escherichia-coli-from-pig-skin-during-a-simulated-handwash
#4
Dane A Jensen, Michael A Rogers, Donald W Schaffner
The effect of surfactant type and concentration on a bland soap formulations ability to remove bacteria from hands remains largely unstudied. Several combinations of surfactants and water were combined to test bacterial removal efficacy using a handwashing device (two pieces of pig skin and a mechanical motor) to simulate a handwash. A nalidixic acid resistant, non-pathogenic strain of Escherichia coli (ATCC 11229) was used. Two anionic surfactants, sodium lauryl sulfate and sodium stearoyl lactylate, and two nonionic surfactants, poloxamer 407 and sorbitan monostearate, each in concentrations of 2%, 5%, and 10% were studied...
July 20, 2017: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/28727674/the-community-balance-and-mobility-scale-a-valid-assessment-tool-of-balance-in-cardiac-rehabilitation-patients
#5
Luke Martelli, Dave Saraswat, Gail Dechman, Nicholas B Giacomantonio, Scott A Grandy
PURPOSE: Many patients participating in cardiac rehabilitation (CR) programs have decreased balance. This is a concern, as it may affect their ability to optimally perform physical exercise in CR and thus decrease CR efficacy. Despite this concern, balance is typically not assessed as part of CR intake. This may be attributable to the fact that a suitable balance assessment tool has not been identified for higher-functioning CR patients. A potential solution to this issue is using the Community Balance and Mobility Scale (CBMS), which has been used to assess balance in higher-functioning clinical populations; however, its use in a CR population has never been investigated...
July 19, 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/28725389/quality-versus-quantity-foraging-decisions-in-the-honeybee-apis-mellifera-scutellata-feeding-on-wildflower-nectar-and-fruit-juice
#6
Kyle Shackleton, Nicholas J Balfour, Hasan Al Toufailia, Roberto Gaioski, Marcela de Matos Barbosa, Carina A de S Silva, José M S Bento, Denise A Alves, Francis L W Ratnieks
Foraging animals must often decide among resources which vary in quality and quantity. Nectar is a resource that exists along a continuum of quality in terms of sugar concentration and is the primary energy source for bees. Alternative sugar sources exist, including fruit juice, which generally has lower energetic value than nectar. We observed many honeybees (Apis mellifera scutellata) foraging on juice from fallen guava (Psidium guajava) fruit near others foraging on nectar. To investigate whether fruit and nectar offered contrasting benefits of quality and quantity, we compared honeybee foraging performance on P...
October 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/28723714/vent-incisions-to-facilitate-peripheral-unfolding-of-the-dmek-graft
#7
Christopher Liu, Alfonso Vasquez-Perez, Jordan Vassileff Chervenkoff, Venkata Avadhanam
PURPOSE: To present the results of 15 cases in which a modified technique of Descemet membrane endothelial keratoplasty (DMEK) with vent incisions was used to assist unfolding of tight peripheral inward folds. METHODS: This is a retrospective case series of 15 consecutive eyes that underwent a modified vent incision technique for DMEK. Six oblique, small-size (1 mm) vent incisions parallel to the limbus and 3.5 mm from the center were performed after descemetorhexis...
July 17, 2017: Cornea
https://www.readbyqxmd.com/read/28722804/balancing-life-and-work-by-unbending-gender-early-american-women-psychologists-struggles-and-contributions
#8
Elizabeth Johnston, Ann Johnson
Women's participation in the work force shifted markedly throughout the twentieth century, from a low of 21 percent in 1900 to 59 percent in 1998. The influx of women into market work, particularly married women with children, put pressure on the ideology of domesticity: an ideal male worker in the outside market married to a woman taking care of children and home (Williams, 2000). Here, we examine some moments in the early-to-mid-twentieth century when female psychologists contested established norms of life-work balance premised on domesticity...
July 2017: Journal of the History of the Behavioral Sciences
https://www.readbyqxmd.com/read/28720935/technological-options-to-control-quality-of-fish-burgers
#9
A Danza, A Conte, M A Del Nobile
This research was focused on preservation strategies applied to develop fish burgers enriched with tomato flour and extra-virgin olive oil. The effects of three different gas mixtures (5:95 O2/CO2; 10:60:30 O2/CO2/N2 and 5:50:45 O2/CO2/N2) on burger quality were analyzed by monitoring microbial cell load of main spoilage microorganisms, pH and sensory properties. As expected, modified atmosphere packaging significantly affected mesophilic bacteria with a reduction of about 2 log cycles for samples under 5% O2 and 95% CO2...
June 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28720698/catalysis-and-chemical-mechanisms-of-calcite-dissolution-in-seawater
#10
Adam V Subhas, Jess F Adkins, Nick E Rollins, John Naviaux, Jonathan Erez, William M Berelson
Near-equilibrium calcite dissolution in seawater contributes significantly to the regulation of atmospheric [Formula: see text] on 1,000-y timescales. Despite many studies on far-from-equilibrium dissolution, little is known about the detailed mechanisms responsible for calcite dissolution in seawater. In this paper, we dissolve (13)C-labeled calcites in natural seawater. We show that the time-evolving enrichment of [Formula: see text] in solution is a direct measure of both dissolution and precipitation reactions across a large range of saturation states...
July 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28719744/high-resolution-insights-into-the-stepwise-self-assembly-of-nanofiber-from-bioactive-peptides
#11
Fude Sun, Long Chen, Xiufang Ding, Lida Xu, Xirui Zhou, Peng Wei, Jun-Feng Liang, Shi-Zhong Luo
Peptide self-assembly has a profound biological significance since self-assembled bioactive peptides are gifted with improved bioactivity as well as life-span. In this study, peptide self-assembly was investigated using a therapeutic peptide, PTP-7S (EENFLGALFKALSKLL). Combining experiments of atomic force microscopy (AFM), circular dichroism (CD) and 8-anilino-1-naphthalenesulfonic acid (ANS) fluorescence spectra, PTP-7S showing α-helix was found self-assembling into nanofibers in solution. Relying on the coarse-grained (CG) dynamic simulations, the self-assembling of PTP-7S was revealed as a stepwise process that peptide monomers first clustered into peptide-assembling units (PUs) with charged surface, and then the PUs integrated together to construct nano-fibril aggregates...
July 18, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28718514/aldehyde-dehydrogenase-1-a1-regulates-energy-metabolism-in-adipocytes-from-different-species
#12
Kefeng Yang, Christopher Adin, Qiwen Shen, Ly James Lee, Lianbo Yu, Paolo Fadda, Arpad Samogyi, Kathleen Ham, Lu Xu, Chen Gilor, Ouliana Ziouzenkova
BACKGROUND: Survival and longevity of xenotransplants depend on immune function and ability to integrate energy metabolism between cells from different species. However, mechanisms for interspecies cross talk in energy metabolism are not well understood. White adipose tissue stores energy and is capable of mobilization and dissipation of energy as heat (thermogenesis) by adipocytes expressing uncoupling protein 1 (Ucp1). Both pathways are under the control of vitamin A metabolizing enzymes...
July 17, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28717042/modeling-the-kinetics-of-the-permeation-of-antibacterial-agents-into-growing-bacteria-and-its-interplay-with-efflux
#13
Wright W Nichols
A mathematical model of the passive permeation of a novel solute into bacteria is developed that explicitly accounts for intracellular dilution through growth. A bacterial cell envelope permeability coefficient of >10(-8) cm(2)s(-1) approx., is predicted to ensure passive permeation into rapidly replicating bacterial cells. The relative importance of the permeability coefficients of the cytoplasmic and outer membranes of Gram-negative bacteria in determining the overall envelope permeability coefficient is analyzed quantitatively...
July 17, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28716504/series-pragmatic-trials-and-real-world-evidence-paper-8-data-collection-and-management-data-collection-in-pragmatic-trials
#14
Anna-Katharina Meinecke, Paco Welsing, George Kafatos, Des Burke, Sven Trelle, Maria Kubin, Gaelle Nachbaur, Matthias Egger, Mira Zuidgeest
Pragmatic trials can improve our understanding of how treatments will perform in routine practice. In a series of eight papers, the GetReal Consortium has evaluated the challenges in designing and conducting pragmatic trials and their specific methodological, operational, regulatory and ethical implications. The present final paper of the series discusses the operational and methodological challenges of data collection in pragmatic trials. A more pragmatic data collection needs to balance the delivery of highly accurate and complete data with minimizing the level of interference that data entry and verification induce with clinical practice...
July 14, 2017: Journal of Clinical Epidemiology
https://www.readbyqxmd.com/read/28716231/measuring-standing-balance-in-multiple-sclerosis-further-progress-towards-an-automatic-and-reliable-method-in-clinical-practice
#15
Philipp M Keune, William R Young, Ioannis T Paraskevopoulos, Sascha Hansen, Jana Muenssinger, Patrick Oschmann, Roy Müller
BACKGROUND: Balance deficits in multiple sclerosis (MS) are often monitored by means of observer-rated tests. These may provide reliable data, but may also be time-consuming, subject to inter-rater variability, and potentially insensitive to mild fluctuations throughout the clinical course. On the other hand, laboratory assessments are often not available. The Nintendo Wii Balance Board (WBB) may represent a low-cost solution. The purpose of the current study was to examine the methodological quality of WBB data in MS (internal consistency, test-retest reliability), convergent validity with observer-rated tests (Berg Balance Scale, BBS; Timed-Up and Go Test, TUG), and discriminative validity concerning clinical status (Expanded Disability Status Scale, EDSS)...
August 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28715734/simultaneous-algae-polluted-water-treatment-and-electricity-generation-using-a-biocathode-coupled-electrocoagulation-cell-bio-ecc
#16
Yue Dong, Youpeng Qu, Chao Li, Xiaoyu Han, John J Ambuchi, Junfeng Liu, Yanling Yu, Yujie Feng
How to utilize electrocoagulation (EC) technology for algae-polluted water treatment in an energy-efficient manner remains a critical challenge for its widespread application. Herein, a novel biocathode-coupled electrocoagulation cell (bio-ECC) with sacrificial iron anode and nitrifying biocathode was developed. Under different solution conductivities (2.33±0.25mScm(-1) and 4.94±0.55mScm(-1)), the bio-ECC achieved almost complete removal of algae cells. The maximum power densities of 8.41 and 11.33Wm(-3) at corresponding current densities of 48...
June 23, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28715337/compact-energy-efficient-high-frequency-switched-capacitor-neural-stimulator-with-active-charge-balancing
#17
Wen-Yang Hsu, Alexandre Schmid
Safety and energy efficiency are two major concerns for implantable neural stimulators. This paper presents a novel high-frequency, switched capacitor (HFSC) stimulation and active charge balancing scheme, which achieves high energy efficiency and well-controlled stimulation charge in the presence of large electrode impedance variations. Furthermore, the HFSC can be implemented in a compact size without any external component to simultaneously enable multichannel stimulation by deploying multiple stimulators...
July 17, 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28715096/effect-of-avulsion-storage-media-on-periodontal-ligament-fibroblast-differentiation
#18
İrem Bağ, Sibel Yildirim
BACKGROUND/AIM: An avulsed tooth must be stored in a solution which maintains periodontal ligament (PDL) cell viability. The aim of this study was to compare the effects of Hank's Balanced Salt Solution (HBSS) and milk on the differentiation of PDL fibroblasts. MATERIAL AND METHODS: Eighteen extracted third molars, (n = 3 for each group), were immersed in HBSS, milk, and Dulbecco's Modified Eagle Medium-Ham's F12 (DMEM-F12) at 4 °C for 30-60 min or 12 h. The growth dynamics of PDL fibroblasts were evaluated with cell proliferation graphics and population doubling time (PDT) values...
July 17, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28714730/replicability-and-other-features-of-a-high-quality-science-toward-a-balanced-and-empirical-approach
#19
Eli J Finkel, Paul W Eastwick, Harry T Reis
Finkel, Eastwick, and Reis (2015; FER2015) argued that psychological science is better served by responding to apprehensions about replicability rates with contextualized solutions than with one-size-fits-all solutions. Here, we extend FER2015's analysis to suggest that much of the discussion of best research practices since 2011 has focused on a single feature of high-quality science-replicability-with insufficient sensitivity to the implications of recommended practices for other features, like discovery, internal validity, external validity, construct validity, consequentiality, and cumulativeness...
August 2017: Journal of Personality and Social Psychology
https://www.readbyqxmd.com/read/28714606/treating-depression-during-pregnancy-are-we-asking-the-right-questions
#20
REVIEW
Cara Angelotta, Katherine L Wisner
BACKGROUND: Major depressive disorder (MDD) is a common complication of pregnancy. Once the diagnosis of MDD is made, the physician must assist the pregnant woman in developing a treatment plan. METHODS: In considering antidepressants, the benefit of medication treatment for maternal disease control must be balanced against the risk of the drug to the developing embryo-fetus. This is an individualized decision depending on the disease characteristics, likelihood of maternal depression response, probability of adverse fetal effects, and patient characteristics and values...
July 17, 2017: Birth defects research
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