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https://www.readbyqxmd.com/read/28411426/thoron-mitigation-system-based-on-charcoal-bed-for-applications-in-thorium-fuel-cycle-facilities-part-2-development-characterization-and-performance-evaluation
#1
K Sudeep Kumara, B K Sahoo, J J Gaware, B K Sapra, Y S Mayya, N Karunakara
Exposure due to thoron ((220)Rn) gas and its decay products in a thorium fuel cycle facility handling thorium or (232)U/(233)U mixture compounds is an important issue of radiological concern requiring control and mitigation. Adsorption in a flow-through charcoal bed offers an excellent method of alleviating the release of (220)Rn into occupational and public domain. In this paper, we present the design, development, and characterization of a Thoron Mitigation System (TMS) for industrial application. Systematic experiments were conducted in the TMS for examining the (220)Rn mitigation characteristics with respect to a host of parameters such as flow rate, pressure drop, charcoal grain size, charcoal mass and bed depth, water content, and heat of the carrier gas...
April 12, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28410567/farm-suicides-in-new-zealand-2007-2015-a-review-of-coroners-records
#2
Annette L Beautrais
OBJECTIVE: Economic recessions and severe weather events are often associated with increased suicide rates. The Global Dairy Crisis 2015/2016 led to an economic downturn in the New Zealand dairy farming industry and, coupled with droughts in some regions and floods in others, raised fears about increased suicide rates among farmers. However, little was known about suicides in the farming sector. This study reviews characteristics of recent farm-related suicides in New Zealand and assesses the extent to which financial stresses contributed to the deaths...
April 1, 2017: Australian and New Zealand Journal of Psychiatry
https://www.readbyqxmd.com/read/28389672/contact-angle-measurement-of-small-capillary-length-liquid-in-super-repelled-state
#3
Tingyi Leo Liu, Chang-Jin Cj Kim
The difficulty of measuring very large contact angles (>150 degrees) has become more relevant with the increased popularity of super-repellent surfaces. Measurement is more difficult for dynamic contact angles, for which theoretical profiles do not fit well, and small capillary length liquids, whose sessile droplets sag by gravity. Here, we expand the issue to the limit by investigating dynamic contact angles of liquids with an extremely small capillary length (<1.0 mm), empowered by the superomniphobic surface that can super-repel even fluorinated solvents, which highly wet all materials...
April 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28381499/cytosolic-and-chloroplastic-dhars-cooperate-in-oxidative-stress-driven-activation-of-the-salicylic-acid-pathway
#4
Marie-Sylviane Rahantaniaina, Shengchun Li, Gilles Chatel-Innocenti, Andrée Tuzet, Emmanuelle Issakidis-Bourguet, Amna Mhamdi, Graham Noctor
The complexity of plant antioxidative systems gives rise to many unresolved questions. One relates to the functional importance of dehydroascorbate reductases (DHARs) in interactions between ascorbate and glutathione. To investigate this issue, we produced a complete set of loss-of-function mutants for the three annotated Arabidopsis DHARs. The combined loss of DHAR1 and DHAR3 expression decreased extractable activity to very low levels but had little effect on phenotype or ascorbate and glutathione pools in standard conditions...
April 5, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28375648/perfectionism-in-argentina-and-the-united-states-measurement-structure-invariance-and-implications-for-depression
#5
Fernán G Arana, Kenneth G Rice, Jeffrey S Ashby
The Revised Almost Perfect Scale (APS-R; Slaney, Mobley, Trippi, Ashby, & Johnson, 1996 ) was designed to measure perfectionistic strivings (standards), perfectionistic concerns (discrepancy), and preferences for neatness and organization (order). In this study, English and Spanish (Arana, Keegan, & Rutsztein, 2009 ) versions of the APS-R were compared in samples of 283 college students in Argentina and 311 U.S. students. The results offered support for cross-national scalar invariance for discrepancy and order items but standards items, with a few exceptions, raised concerns about their cross-national comparability...
April 4, 2017: Journal of Personality Assessment
https://www.readbyqxmd.com/read/28371295/selection-of-best-conditions-of-inoculum-preparation-for-optimum-performance-of-the-pigment-production-process-by-talaromyces-spp-using-the-taguchi-method
#6
L Morales-Oyervides, J C Oliveira, M J Sousa-Gallagher, A Méndez-Zavala, J C Montañez
Process optimisation techniques increasingly need to be used early on in Research and Development of processes for new ingredients. There are different approaches and this paper illustrates the main issues at stake with a method that is an industry best practice, the Taguchi method, suggesting a procedure to assess the potential impact of its drawbacks. The Taguchi method has been widely used in various industrial sectors because it minimises the experimental requirements to define an optimum region of operation, which is particularly relevant when minimising variability is a target...
April 3, 2017: Biotechnology Progress
https://www.readbyqxmd.com/read/28365921/shechita-kosher-slaughtering-and-european-legislation
#7
Paolo S Pozzi, Trevor Waner
Shechita is the procedure of killing or slaughtering animals for food production, according to Jewish tradition and it is performed without prior stunning. USA and European legislations conditionally allow slaughter without prior stunning in the frame of religion freedom (USA) or religious/cultural traditions (EU); nevertheless some traditional events in Europe de nitely represent a concern for animal welfare. It is possible to identify animal welfare issues in the rules for shechita: correct restrain of the animal; adequacy of the instrument (knife); technical ability of the operator...
March 31, 2017: Veterinaria Italiana
https://www.readbyqxmd.com/read/28364358/a-mutual-authentication-framework-for-wireless-medical-sensor-networks
#8
Jangirala Srinivas, Dheerendra Mishra, Sourav Mukhopadhyay
Wireless medical sensor networks (WMSN) comprise of distributed sensors, which can sense human physiological signs and monitor the health condition of the patient. It is observed that providing privacy to the patient's data is an important issue and can be challenging. The information passing is done via the public channel in WMSN. Thus, the patient, sensitive information can be obtained by eavesdropping or by unauthorized use of handheld devices which the health professionals use in monitoring the patient...
May 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28358492/%C3%AE-feooh-nanorods-carbon-foam-based-hierarchically-porous-monolith-for-highly-effective-arsenic-removal
#9
Xiao Ge, Yue Ma, Xiangyang Song, Guozhong Wang, Haimin Zhang, Yunxia Zhang, Huijun Zhao
Arsenic pollution in waters has become a worldwide issue, constituting a severe hazard to whole ecosystems and public health worldwide. Accordingly, it is highly desirable to design high-performance adsorbents for arsenic decontamination. Herein, a feasible strategy is developed for in situ growth of β-FeOOH nanorods (NRs) on a three-dimensional (3D) carbon foam (CF) skeleton via a simple calcination process and subsequent hydrothermal treatment. The as-fabricated 3D β-FeOOH NRs/CF monolith can be innovatively utilized for arsenic remediation from contaminated aqueous systems, accompanied by remarkably high uptake capacity of 103...
April 6, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28336382/migration-and-infectious-diseases
#10
REVIEW
F Castelli, G Sulis
BACKGROUND: Infectious diseases still represent an important cause of morbidity and mortality among foreign-born individuals. The rising migration flows towards Europe throughout the last few years are raising renewed concerns about management issues and the potential associated risk for the native population. AIMS: To discuss the health implications and challenges related to the four phases of migration, from first arrival to stable resettlement. SOURCES: Scientific literature and relevant statistical reports...
March 20, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28332097/novel-and-advanced-techniques-for-complex-ivc-filter-retrieval
#11
REVIEW
Dania Daye, T Gregory Walker
Inferior vena cava (IVC) filter placement is indicated for the treatment of venous thromboembolism (VTE) in patients with a contraindication to or a failure of anticoagulation. With the advent of retrievable IVC filters and their ease of placement, an increasing number of such filters are being inserted for prophylaxis in patients at high risk for VTE. Available data show that only a small number of these filters are retrieved within the recommended period, if at all, prompting the FDA to issue a statement on the need for their timely removal...
April 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28324800/breast-textiloma-an-unending-medico-legal-issue-about-a-case-report
#12
Marwa Boussaid, Med Amin Mesrati, Rania Jouirou, Nouha Abdejlil, Abdelfeteh Zakhama, Ali Chadly, Abir Aissaoui
INTRODUCTION: Textiloma is a mass composed of retained surgical textile foreign body. It is a rare iatrogenic complication that can engage the doctor's responsibility. The aim of this manuscript is to report an unusual case of breast Textiloma mimicking a recurrent tumor and to highlight its medico-legal implications. PRESENTATION OF CASE: A 47-year-old lady, without past medical history, was diagnosed with a breast infiltring intraductal carcinoma. She was treated with mastectomy...
March 7, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28315607/correcting-bias-due-to-missing-stage-data-in-the-non-parametric-estimation-of-stage-specific-net-survival-for-colorectal-cancer-using-multiple-imputation
#13
Milena Falcaro, James R Carpenter
BACKGROUND: Population-based net survival by tumour stage at diagnosis is a key measure in cancer surveillance. Unfortunately, data on tumour stage are often missing for a non-negligible proportion of patients and the mechanism giving rise to the missingness is usually anything but completely at random. In this setting, restricting analysis to the subset of complete records gives typically biased results. Multiple imputation is a promising practical approach to the issues raised by the missing data, but its use in conjunction with the Pohar-Perme method for estimating net survival has not been formally evaluated...
March 15, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/28314597/co-enrolment-of-participants-into-multiple-cancer-trials-benefits-and-challenges
#14
F H Cafferty, C Coyle, S Rowley, L Berkman, M MacKensie, R E Langley
Opportunities to enter patients into more than one clinical trial are not routinely considered in cancer research and experiences with co-enrolment are rarely reported. Potential benefits of allowing appropriate co-enrolment have been identified in other settings but there is a lack of evidence base or guidance to inform these decisions in oncology. Here, we discuss the benefits and challenges associated with co-enrolment based on experiences in the Add-Aspirin trial - a large, multicentre trial recruiting across a number of tumour types, where opportunities to co-enrol patients have been proactively explored and managed...
March 14, 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/28289261/growth-rate-transmission-mode-and-virulence-in-human-pathogens
#15
Helen C Leggett, Charlie K Cornwallis, Angus Buckling, Stuart A West
The harm that pathogens cause to hosts during infection, termed virulence, varies across species from negligible to a high likelihood of rapid death. Classic theory for the evolution of virulence is based on a trade-off between pathogen growth, transmission and host survival, which predicts that higher within-host growth causes increased transmission and higher virulence. However, using data from 61 human pathogens, we found the opposite correlation to the expected positive correlation between pathogen growth rate and virulence...
May 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28282587/feasibility-of-magnetic-marker-localisation-for-non-palpable-breast-cancer
#16
B Schermers, J A van der Hage, C E Loo, M T F D Vrancken Peeters, H A O Winter-Warnars, F van Duijnhoven, B Ten Haken, S H Muller, T J M Ruers
OBJECTIVES: Accurate tumour localisation is essential for breast-conserving surgery of non-palpable tumours. Current localisation technologies are associated with disadvantages such as logistical challenges and migration issues (wire guided localisation) or legislative complexities and high administrative burden (radioactive localisation). We present MAgnetic MArker LOCalisation (MaMaLoc), a novel technology that aims to overcome these disadvantages using a magnetic marker and a magnetic detection probe...
March 7, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28256130/general-signal-amplification-strategy-for-nonfaradic-impedimetric-sensing-trastuzumab-detection-employing-a-peptide-immunosensor
#17
Juan Liu, Mohammad Muhsin Chisti, Xiangqun Zeng
A label-free and reagent-free peptide mimotope capacitive biosensor has been developed for cancer drug (trastuzumab) quantification based on nonfaradic readout. The low sensitivity issue of capacitive biosensors was overcome with two innovations: peptide mimotope mixed self-assembled monolayer (SAM) biointerface and dilution of the analysis buffer. Signal amplification was achieved through dilution of phosphate-buffered saline (PBS) to tune Cdl to dominate the overall capacitance change upon target binding, which contribution is often negligible without dilution...
March 20, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28249213/ligand-effects-on-nitrate-reduction-by-zero-valent-iron-role-of-surface-complexation
#18
Xiaojie Song, Zhihao Chen, Xiaomeng Wang, Shujuan Zhang
Surface passivation is a key limiting factor in the application of zero-valent iron (ZVI) for water remediation. Addition of ligands is a useful approach to overcome this issue. In this work, a small amount of acetylacetone (AA) (0.5 mM) was found highly efficient to enhance the reduction of nitrate by ZVI at near neutral conditions (pH 6.0) with the formation of considerable black coating on ZVI. At an initial nitrate concentration of 20 mg N/L, the pseudo first-order reduction rate constant of nitrate in the ZVI-AA-NO3(-) system was 0...
February 20, 2017: Water Research
https://www.readbyqxmd.com/read/28224796/multi-chlorine-substituted-self-assembled-molecules-as-anode-interlayers-tuning-surface-properties-and-humidity-stability-for-organic-photovoltaics
#19
Xiaofang Cheng, Liqiang Huang, Lifu Zhang, Qingyun Ai, Lie Chen, Yiwang Chen
Self-assembled small molecules (SASMs) are effective materials to improve the interfacial properties between a metal/metal oxide and the overlying organic layer. In this work, surface modification of indium tin oxide (ITO) electrode by a series of Cl-containing SASMs has been exploited to control the surface properties of ITO and device performance for organic photovoltaics. Depending on the position and degrees of chlorination for SASMs, we could precisely manipulate the work function of the ITO electrode, and chemisorption of SASMs on ITO as well...
March 1, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28220003/third-harmonic-generation-from-mie-type-resonances-of-isolated-all-dielectric-nanoparticles
#20
Elizaveta V Melik-Gaykazyan, Maxim R Shcherbakov, Alexander S Shorokhov, Isabelle Staude, Igal Brener, Dragomir N Neshev, Yuri S Kivshar, Andrey A Fedyanin
Subwavelength silicon nanoparticles are known to support strongly localized Mie-type modes, including those with resonant electric and magnetic dipolar polarizabilities. Here we compare experimentally the efficiency of the third-harmonic generation from isolated silicon nanodiscs for resonant excitation at the two types of dipolar resonances. Using nonlinear spectroscopy, we observe that the magnetic dipolar mode yields more efficient third-harmonic radiation in contrast to the electric dipolar (ED) mode. This is further supported by full-wave numerical simulations, where the volume-integrated local fields and the directly simulated nonlinear response are shown to be negligible at the ED resonance compared with the magnetic one...
March 28, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
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