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https://www.readbyqxmd.com/read/29224124/underestimated-effects-of-sediments-on-enhanced-startup-performance-of-biofilm-systems-for-polluted-source-water-pretreatment
#1
Zheng-Hui Lv, Jing Wang, Guang-Feng Yang, Li-Juan Feng, Jun Mu, Liang Zhu, Xiang-Yang Xu
In order to evaluate the enhancement mechanisms of enhanced startup performance in biofilm systems for polluted source water pretreatment, three lab-scale reactors with elastic stereo media (ESM) were operated under different enhanced sediment and hydraulic agitation conditions. It is interesting to found the previously underestimated or overlooked effects of sediment on the enhancement of pollutants removal performance and enrichment of functional bacteria in biofilm systems. The maximum NH4+-N removal rate of 0...
December 9, 2017: Biodegradation
https://www.readbyqxmd.com/read/29220026/a-new-crop-of-microbe-startups-raises-big-bucks-takes-on-the-establishment
#2
Emily Waltz
No abstract text is available yet for this article.
December 8, 2017: Nature Biotechnology
https://www.readbyqxmd.com/read/29209692/hackathon-public-health
#3
A Firenze, S Provenzano, O E Santangelo, E Alagna, D Piazza, M V Torregrossa
BACKGROUND: It is necessary to implement current teaching in the healthcare and university sector by promoting new tools for the enhancement of public health, bearing in mind that some health determinants seek to create a context in which to present their own idea of innovative Startup, can represent the opportunity to give your professional contribution to the development of another's idea or to propose an improved solution to the private business. On the other hand, networking with companies and networking between training participants will allow us to recognize the importance of demonstrating their diverse skills as a key element to create a successful Startup or to implement the activities of a reality already consolidated...
November 2017: La Clinica Terapeutica
https://www.readbyqxmd.com/read/29204898/high-rate-nitrogen-removal-from-waste-brine-by-marine-anammox-bacteria-in-a-pilot-scale-uasb-reactor
#4
Nobuyuki Yokota, Yasutsugu Watanabe, Takaaki Tokutomi, Tomohiro Kiyokawa, Tomoyuki Hori, Daisuke Ikeda, Kang Song, Masaaki Hosomi, Akihiko Terada
The goal of this study was to develop a startup strategy for a high-rate anaerobic ammonium oxidation (anammox) reactor to treat waste brine with high concentrations of ammonium from a natural gas plant. An upflow anaerobic sludge blanket (UASB) anammox reactor with an effective volume of 294 L was fed continuously with waste brine with a salinity of 3% and a NH4+ concentration of 180 mg-N/L, as well as a NaNO2 solution. By inoculating a methanogenic granular biomass as a biomass carrier, the reactor attained the maximum volumetric nitrogen removal rate (NRR) of 10...
December 4, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29186835/school-gardens-a-qualitative-study-on-implementation-practices
#5
Nele Huys, Katrien De Cocker, Marieke De Craemer, Marleen Roesbeke, Greet Cardon, Sara De Lepeleere
School gardens have beneficial effects on children's dietary behaviors but information on its implementation is scarce. The current study aimed to gain insight in implementation practices of school gardens and in perceptions of key members and children towards a school garden. We conducted twelve interviews involving 14 key members and five focus groups with 38 children from fifth to sixth grade (10-13 years old) in four primary schools in Ghent (Flanders, Belgium). We analyzed the interviews and focus groups in NVivo, using thematic analysis...
November 25, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29185980/venture-capital-throws-dough-that-could-fix-health-care-woe
#6
Timothy Kelley
Some experts say that investors funding innovative startup companies can disrupt American health care, making it smarter and more efficient. Others warn that incentives must change if VC money is to make a real difference. It's a trend no one in health care can ignore.
November 2017: Managed Care
https://www.readbyqxmd.com/read/29173129/preparation-and-performance-of-manganese-oxide-coated-zeolite-for-removal-of-manganese-contaminated-in-groundwater
#7
Cong Lyu, Xuejiao Yang, Shengyu Zhang, Qihui Zhang, Xiaosi Su
A promising and easily prepared catalytic filler media, manganese oxide coated zeolite (MOCZ), for the removal of Mn (II) contaminated in groundwater was studied. The optimal condition for MOCZ preparation was given as follows: acid activation of zeolite with 5% HCl mass percent for 12 hours, then soaking of acid activated zeolite with 7% KMnO4 mass percent for 8 hours, and finally calcination at 300 °C for 5 hours. Acid activation significantly enlarged the specific surface area of zeolite (> 79 m2 g-1), subsequently enhancing the coating of manganese oxides onto the surface of zeolite...
November 27, 2017: Environmental Technology
https://www.readbyqxmd.com/read/29157153/evaluation-of-industrial-byproducts-and-natural-minerals-for-phosphate-adsorption-from-subsurface-drainage
#8
Bjorn M Sellner, Guanghui Hua, Laurent M Ahiablame, Todd P Trooien, Christopher H Hay, Jeppe Kjaersgaard
Agricultural subsurface drainage has been recognized as an important pathway for phosphorus transport from soils to surface waters. Reactive permeable filters are a promising technology to remove phosphate from subsurface drainage. Three natural minerals (limestone, zeolite, and calcite) and five industrial byproducts (steel slag, iron filings, and three recycled steel byproducts) were evaluated for phosphate removal from subsurface drainage using batch adsorption experiments. Phosphate adsorption onto these materials were characterized by Langmuir isotherm and second order kinetic models...
November 20, 2017: Environmental Technology
https://www.readbyqxmd.com/read/29145079/microbial-transcript-and-metabolome-analysis-uncover-discrepant-metabolic-pathways-in-autotrophic-and-mixotrophic-anammox-consortia
#9
Ying Feng, Yunpeng Zhao, Yongzhao Guo, Sitong Liu
The ability of anammox bacteria to utilize organic matter has drawn extensive attention. However, the metabolic discrepancies between autotrophic and mixotrophic anammox consortia need to be further explored. Here, microbial transcript and metabolomic analysis were conducted for the samples harvested in the reactors and batch assays to investigate the phenotype discrepancies and intrinsic causes in autotrophic and mixotrophic anammox consortia. Results showed that metabolically active community structures did not show significant difference between autotrophic and mixotrophic anammox consortia (C/N = 0...
October 31, 2017: Water Research
https://www.readbyqxmd.com/read/29097516/planning-risk-based-sqc-schedules-for-bracketed-operation-of-continuous-production-analyzers
#10
James O Westgard, Hassan Bayat, Sten A Westgard
BACKGROUND: To minimize patient risk, "bracketed" statistical quality control (SQC) is recommended in the new CLSI guidelines for SQC (C24-Ed4). Bracketed SQC requires that a QC event both precedes and follows (brackets) a group of patient samples. In optimizing a QC schedule, the frequency of QC or run size becomes an important planning consideration to maintain quality and also facilitate responsive reporting of results from continuous operation of high production analytic systems. METHODS: Different plans for optimizing a bracketed SQC schedule were investigated on the basis of Parvin's model for patient risk and CLSI C24-Ed4's recommendations for establishing QC schedules...
November 2, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/29066589/economic-assessment-of-4-approaches-to-the-diagnosis-and-initial-treatment-of-sleep-apnea
#11
Dawn M Bravata, Nancy Lightner, H Klar Yaggi, Edward J Miech
BACKGROUND: A dilemma faced by health-care administrators is that need greatly outstrips capacity for diagnosing and treating sleep apnea, with such decisions carrying significant economic consequences. Our objective was to develop an economic model to estimate the relative costs of 4 approaches for diagnosis and initial treatment of sleep apnea. METHODS: The analysis consisted of developing a mathematical model depicting possible diagnostic and treatment approaches to the care of patients with sleep apnea; developing 4 clinical scenarios to describe distinct approaches to the management of sleep apnea patients (in-laboratory, unattended, direct-to-autotitrating PAP [auto-PAP], and mixed); and identifying costs associated with each scenario...
October 24, 2017: Respiratory Care
https://www.readbyqxmd.com/read/29046968/development-of-an-elution-device-for-virocap-virus-filters
#12
Christine Susan Fagnant, Matthew Toles, Nicolette Angela Zhou, Jacob Powell, John Adolphsen, Yifei Guan, Byron Ockerman, Jeffry Hiroshi Shirai, David S Boyle, Igor Novosselov, John Scott Meschke
Environmental surveillance of waterborne pathogens is vital for monitoring the spread of diseases, and electropositive filters are frequently used for sampling wastewater and wastewater-impacted surface water. Viruses adsorbed to electropositive filters require elution prior to detection or quantification. Elution is typically facilitated by a peristaltic pump, although this requires a significant startup cost and does not include biosafety or cross-contamination considerations. These factors may pose a barrier for low-resource laboratories that aim to conduct environmental surveillance of viruses...
October 19, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29035674/the-startup-performance-and-microbial-distribution-of-an-anaerobic-baffled-reactor-abr-treating-medium-strength-synthetic-industrial-wastewater
#13
Hao Jiang, Hong Nie, Jiangtao Ding, Walter Stinner, Kaixuan Sun, Hongjun Zhou
In this study, an anaerobic baffled reactor (ABR) with seven chambers was applied to treat medium-strength synthetic industrial wastewater (MSIW). The performance of startup and shock test on treating MSIW was investigated. During the acclimation process, the chemical oxygen demand (COD) of MSIW gradually increased from 0 to 2,000 mg L(-1), and the COD removal finally reached 90%. At shock test, the feeding COD concentration increased by one-fifth and the reactor adapted very well with a COD removal of 82%...
October 16, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/28989723/single-particle-cryo-em-using-alignment-by-classification-abc-the-structure-of-lumbricus-terrestris-haemoglobin
#14
Pavel Afanasyev, Charlotte Seer-Linnemayr, Raimond B G Ravelli, Rishi Matadeen, Sacha De Carlo, Bart Alewijnse, Rodrigo V Portugal, Navraj S Pannu, Michael Schatz, Marin van Heel
Single-particle cryogenic electron microscopy (cryo-EM) can now yield near-atomic resolution structures of biological complexes. However, the reference-based alignment algorithms commonly used in cryo-EM suffer from reference bias, limiting their applicability (also known as the 'Einstein from random noise' problem). Low-dose cryo-EM therefore requires robust and objective approaches to reveal the structural information contained in the extremely noisy data, especially when dealing with small structures. A reference-free pipeline is presented for obtaining near-atomic resolution three-dimensional reconstructions from heterogeneous ('four-dimensional') cryo-EM data sets...
September 1, 2017: IUCrJ
https://www.readbyqxmd.com/read/28989009/the-surgery-innovation-and-entrepreneurship-development-program-siedp-an-experiential-learning-program-for-surgery-faculty-to-ideate-and-implement-innovations-in-health-care
#15
Jonathan Servoss, Connie Chang, David Olson, Kevin R Ward, Michael W Mulholland, Mark S Cohen
OBJECTIVE: Surgeons are continually engaged in the incorporation of new technologies in their practice. In the operating room and beyond, they combine technical skill with creative problem solving to improve tools and techniques for patient care, making them natural innovators. However, despite their innovative tendencies, education on entrepreneurship and commercialization is severely lacking. Moreover, with increasing pressure to meet productivity metrics, their availability to learn the complexities of commercialization is limited...
October 5, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28971446/determination-of-soft-tissue-breakpoint-based-on-its-temperature-enhancement-pattern-in-vivo-and-in-vitro-experiments
#16
C Austerlitz, I Gkigkitzis, A L S Barros, J Melo, I Haranas, D Campos
The breakpoint of fresh commercial meats and in vivo mice has been assessed using tissue temperature enhancement pattern. A 1 cm length and 0.1 cm diameter gold rod was implanted in fresh chicken breast, beef, fish, and in vivo Mus musculus white mice and was insonated with ultrasound. The temperature enhancement of gold rods was measured with a needle type thermistor over a temperature range from 35 to 50 °C. From these results the breakpoints were determined by plotting the gold rod temperature versus ultrasound exposure duration using the interception point of two curves fitted by a linear regression equations of thermal response above and below 43 °C...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28936795/the-ugly-truth-about-ourselves-and-our-robot-creations-the-problem-of-bias-and-social-inequity
#17
Ayanna Howard, Jason Borenstein
Recently, there has been an upsurge of attention focused on bias and its impact on specialized artificial intelligence (AI) applications. Allegations of racism and sexism have permeated the conversation as stories surface about search engines delivering job postings for well-paying technical jobs to men and not women, or providing arrest mugshots when keywords such as "black teenagers" are entered. Learning algorithms are evolving; they are often created from parsing through large datasets of online information while having truth labels bestowed on them by crowd-sourced masses...
September 21, 2017: Science and Engineering Ethics
https://www.readbyqxmd.com/read/28910583/performance-evaluation-of-startup-for-a-yeast-membrane-bioreactor-mbry-treating-landfill-leachate
#18
Míriam C S Amaral, Rosimeire F Gomes, Yara L Brasil, Sílvia M A Oliveira, Wagner G Moravia
The startup process of a membrane bioreactor inoculated with yeast biomass (Saccharomyces cerevisiae) and used in the treatment of landfill leachate was evaluated. The yeast membrane bioreactor (MBRy) was inoculated with an exogenous inoculum, a granulated active dry commercial bakers' yeast. The MBRy was successfully started up with a progressive increase in the landfill leachate percentage in the MBRy feed and the use of Sabouraud Dextrose Broth. The membrane plays an important role in the startup phase because of its full biomass retention and removal of organic matter...
December 6, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/28871987/low-dose-rate-brachytherapy-for-prostate-cancer-in-low-resource-settings
#19
Michelle I Echevarria, Arash O Naghavi, Yazan A Abuodeh, Kamran A Ahmed, Carlos Chevere, Daniel Fernandez, Kosj Yamoah
PURPOSE: In areas with limited health care, it is important to identify and implement effective treatment methods and to optimize available resources. We investigated the implementation of a low-dose-rate (LDR) brachytherapy program for the treatment of prostate cancer (PCa) in a low-resource setting such as Puerto Rico (PR), where PCa is the main cause of cancer-associated death. METHODS AND MATERIALS: After institutional approval, the medical records of patients with nonmetastatic PCa undergoing LDR brachytherapy from 2008 to 2013 were reviewed from PR...
October 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28867405/attitudes-of-chinese-community-members-and-psychiatrists-towards-forensic-psychiatric-assessments
#20
Zhong Shaoling, Wang Jun, Mellsop Graham, Chen Chen, Zhang Simei, Li Qiguang, Wang Qun, Zhou Jiansong, Wang Xiaoping
The aim of this study was to investigate the attitudes of Chinese community members and psychiatrists towards forensic psychiatric assessments. A questionnaire designed to record attitudes toward the current forensic psychiatric assessment procedures and the disposal of mentally ill offenders was developed and distributed via a mobile App. A total of 134 community members and 132 psychiatrists voluntarily completed the questionnaire. Most of responders agreed that the department of public-security has the right to apply for a forensic psychiatric assessment but should not be held solely by that department...
December 2017: Psychiatry Research
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