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https://www.readbyqxmd.com/read/28822930/spatial-and-temporal-patterns-of-pesticide-concentrations-in-streamflow-drainage-and-runoff-in-a-small-swedish-agricultural-catchment
#1
Maria Sandin, Kristin Piikki, Nicholas Jarvis, Mats Larsbo, Kevin Bishop, Jenny Kreuger
A better understanding of the dominant source areas and transport pathways of pesticide losses to surface water is needed for targeting mitigation efforts in a more cost-effective way. To this end, we monitored pesticides in surface water in an agricultural catchment typical of one of the main crop production regions in Sweden. Three small sub-catchments (88-242ha) were selected for water sampling based on a high-resolution digital soil map developed from proximal sensing methods and soil sampling; one sub-catchment had a high proportion of clay soils, another was dominated by coarse sandy soils while the third comprised a mix of soil types...
August 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28822781/inpatient-versus-outpatient-parenteral-antibiotic-therapy-at-home-for-acute-infections-in-children-a-systematic-review
#2
REVIEW
Penelope A Bryant, Naomi T Katz
Inpatient management is necessary in many situations, but medical and allied-health treatments are increasingly being used on an outpatient basis to allow patients who would traditionally have been admitted to hospital to remain at home. Home-based clinical management has many potential benefits, including reduced hospital-acquired infections, cost savings, and patient and family satisfaction. Studies in adults provide evidence for the benefits of home-based versus hospital-based intravenous antibiotics, but few studies inform practice in home-based intravenous antibiotic therapy for children...
August 16, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28822773/methodology-design-of-the-regional-sub-saharan-africa-total-diet-study-in-benin-cameroon-mali-and-nigeria
#3
Luc Ingenbleek, Eric Jazet, Anaclet D Dzossa, Samson B Adebayo, Julius Ogungbangbe, Sylvestre Dansou, Zima J Diallo, Christiant Kouebou, Abimbola Adegboye, Epiphane Hossou, Salimata Coulibaly, Sara Eyangoh, Bruno Le Bizec, Philippe Verger, Jean Kamanzi, Caroline Merten, Jean-Charles Leblanc
The core food model was described more than three decades ago, and has been used ever since to identify main food contributors to dietary intakes for both nutrients and other food chemicals. The Sub-Saharan Africa Total Diet Study (SSA-TDS) uses this model to describe the food consumption habits of some selected populations of Benin, Cameroon, Mali, and Nigeria, prior to use in the completion of quantitative risk assessments with regard to food chemicals. Food consumption data were derived from food expenditure data contained in national household budget surveys that were provided by the national institutes of statistics in each country...
August 16, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28822682/a-systematic-review-of-digital-interventions-for-improving-the-diet-and-physical-activity-behaviors-of-adolescents
#4
REVIEW
Taylor Rose, Mary Barker, Chandni Maria Jacob, Leanne Morrison, Wendy Lawrence, Sofia Strömmer, Christina Vogel, Kathryn Woods-Townsend, David Farrell, Hazel Inskip, Janis Baird
Many adolescents have poor diet and physical activity behaviors, which can lead to the development of noncommunicable diseases in later life. Digital platforms offer inexpensive means of delivering health interventions, but little is known about their effectiveness. This systematic review was conducted to synthesize evidence on the effectiveness of digital interventions to improve diet quality and increase physical activity in adolescents, to effective intervention components and to assess the cost-effectiveness of these interventions...
August 16, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28822347/screening-and-confirmation-of-steroids-and-nitroimidazoles-in-urine-blood-and-food-matrices-sample-preparation-methods-and-liquid-chromatography-tandem-mass-spectrometric-separations
#5
Ádám Tölgyesi, Enikő Barta, Andrea Simon, Thomas J McDonald, Virender K Sharma
Veterinary drugs containing synthetic anabolic steroid and nitroimidazole active agents are not allowed for their applications in livestock of the European Union (EU). This paper presents analyses of twelve selected steroids and six nitroimidazole antibiotics at low levels (1.56μg/L-4.95μg/L and 0.17μg/kg-2.14μg/kg, respectively) in body fluids and egg incurred samples. Analyses involved clean-up procedures, high performance liquid chromatography (HPLC) separation, and tandem mass spectrometric screening and confirmatory methods...
August 5, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28821890/detection-rate-of-high-grade-cervical-neoplasia-and-cost-effectiveness-of-high-risk-human-papillomavirus-genotyping-with-reflex-liquid-based-cytology-in-cervical-cancer-screening
#6
Sun Kuie Tay, Lynette Eo Lin, Ronald Ch Goh
INTRODUCTION: This study aimed to determine the prevalence of cervical intraepithelial neoplasia grade 3 or worse (≥CIN3) and cost-effectiveness of human papillomavirus (HPV) genotyping with reflex liquid-based cytology (LBC) for cervical cancer screening in Singapore. MATERIALS AND METHODS: Women who were ≥25 years old and undertook co-testing with LBC and HPV-genotyping (Cobas-4800, Roche, USA) for HPV-16, HPV-18 and 12 high-risk HPV types in a single institution were studied retrospectively...
July 2017: Annals of the Academy of Medicine, Singapore
https://www.readbyqxmd.com/read/28821851/mass-production-of-bulk-artificial-nacre-with-excellent-mechanical-properties
#7
Huai-Ling Gao, Si-Ming Chen, Li-Bo Mao, Zhao-Qiang Song, Hong-Bin Yao, Helmut Cölfen, Xi-Sheng Luo, Fu Zhang, Zhao Pan, Yu-Feng Meng, Yong Ni, Shu-Hong Yu
Various methods have been exploited to replicate nacre features into artificial structural materials with impressive structural and mechanical similarity. However, it is still very challenging to produce nacre-mimetics in three-dimensional bulk form, especially for further scale-up. Herein, we demonstrate that large-sized, three-dimensional bulk artificial nacre with comprehensive mimicry of the hierarchical structures and the toughening mechanisms of natural nacre can be facilely fabricated via a bottom-up assembly process based on laminating pre-fabricated two-dimensional nacre-mimetic films...
August 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28821512/protocol-for-an-economic-evaluation-of-the-randomised-controlled-trial-of-culprit-lesion-only-pci-versus-immediate-multivessel-pci-in-acute-myocardial-infarction-complicated-by-cardiogenic-shock-culprit-shock-trial
#8
Zahidul Quayyum, Andrew Briggs, Jose Robles-Zurita, Keith Oldroyd, Uwe Zeymer, Steffen Desch, Suzanne de Waha, Holger Thiele
INTRODUCTION: Emergency percutaneous coronary intervention (PCI) of the culprit lesion for patients with acute myocardial infarctions is an accepted practice. A majority of patients present with multivessel disease with additional relevant stenoses apart from the culprit lesion. In haemodynamically stable patients, there is increasing evidence from randomised trials to support the practice of immediate complete revascularisation. However, in the presence of cardiogenic shock, the optimal management strategy for additional non-culprit lesions is unknown...
August 18, 2017: BMJ Open
https://www.readbyqxmd.com/read/28821437/particle-sizing-of-pharmaceutical-aerosols-via-direct-imaging-of-particle-settling-velocities
#9
Rami Fishler, Frank Verhoeven, Wilbur de Kruijf, Josué Sznitman
We present a novel method for characterizing in near real-time the aerodynamic particle size distributions from pharmaceutical inhalers. The proposed method is based on direct imaging of airborne particles followed by a particle-by-particle measurement of settling velocities using image analysis and particle tracking algorithms. Due to the simplicity of the principle of operation, this method has the potential of circumventing potential biases of current real-time particle analyzers (e.g. Time of Flight analysis), while offering a cost effective solution...
August 16, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28821247/a-cost-effective-approach-to-produce-15-n-labelled-amino-acids-employing-chlamydomonas-reinhardtii-cc503
#10
Jesús Nicolás Carcelén, Juan Manuel Marchante-Gayón, Pablo Rodríguez González, Luis Valledor, María Jesús Cañal, José Ignacio García Alonso
BACKGROUND: The use of enriched stable isotopes is of outstanding importance in chemical metrology as it allows the application of isotope dilution mass spectrometry (IDMS). Primary methods based on IDMS ensure the quality of the analytical measurements and traceability of the results to the international system of units. However, the synthesis of isotopically labelled molecules from enriched stable isotopes is an expensive and a difficult task. Either chemical and biochemical methods to produce labelled molecules have been proposed, but so far, few cost-effective methods have been described...
August 18, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28821101/cholesteric-film-of-cu-ii-doped-cellulose-nanocrystals-for-colorimetric-sensing-of-ammonia-gas
#11
Shidong Dai, Nana Prempeh, Dagang Liu, Yimin Fan, Mingyue Gu, Yu Chang
With the increasing demand of environmental monitoring for toxic and odorous ammonia gas it is desired to develop specific green, cost-effective and in situ passive colorimetric alternatives to current complex instrumentations. In this work, we designed an ammonia gas sensor based on cholesteric liquid crystal films of copper(II)-doped cellulose nanocrystals (CNCCu(II)) whose structure, optical and sensing properties were investigated. The hybrid films using the low doping Cu(II) as a color-tuning agent inherited the chiral nematic signature and optical activity of CNCs, suggesting a strong chelation between copper ions and negatively charged CNCs...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28821084/green-synthesis-of-oriented-xanthan-gum-graphene-oxide-hybrid-aerogels-for-water-purification
#12
Shunli Liu, Fang Yao, Olayinka Oderinde, Zhihong Zhang, Guodong Fu
Three-dimensional xanthan gum (XG)/graphene oxide (GO) hybrid aerogels were fabricated by ice crystal templating without using chemical modifiers. The hybrid aerogels were prepared by the stirring of xanthan gum-graphene oxide hybrid solution, followed by freezing at low temperature and finally by freeze-drying. The whole preparation could be completed within 12h without producing any contamination and thus considered a fast, simple, economical, and green method for aerogel fabrication. XG/GO hybrid aerogels possessed different hierarchical pore structures because of various freezing temperatures...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28821068/radiation-synthesis-and-performance-of-novel-cellulose-based-microsphere-adsorbents-for-efficient-removal-of-boron-iii
#13
Siqi Liu, Min Xu, Tianlin Yu, Dong Han, Jing Peng, Jiuqiang Li, Maolin Zhai
A novel cellulose-based microsphere containing glucamine groups, referred as CVN, was successfully synthesized by radiation-induced graft polymerization of 4-vinylbenzyl chloride onto cellulose microspheres and subsequent functionalization with N-methyl-d-glucamine. The adsorption by CVN for boron (III) from aqueous solutions was evaluated systematically by batch adsorption technique. Langmuir models could fit well with the adsorption behavior of CVN. The CVN adsorbents exhibited a high adsorption capacity up to 12...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28820815/direct-to-implant-breast-reconstruction-without-the-use-of-an-acellular-dermal-matrix-is-cost-effective-and-oncologically-safe
#14
Domenico Parisi, Francesco Ciancio, Aurelio Portincasa, Alessandro Innocenti
No abstract text is available yet for this article.
August 9, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28820751/importance-of-pcr-based-tumor-testing-in-the-evaluation-of-lynch-syndrome-associated-endometrial-cancer
#15
Amanda S Bruegl, Annessa Kernberg, Russell R Broaddus
Lynch syndrome (LS) is a hereditary cancer syndrome caused by a germline mutation in a DNA mismatch repair gene, usually MLH1, MSH2, MSH6, or PMS2. The most common cancers associated with LS are colorectal adenocarcinoma and endometrial carcinoma. Identification of women with LS-associated endometrial cancer is important, as these women and their affected siblings and children are at-risk of developing these same cancers. Germline testing of all endometrial cancer patients is not cost effective, and screening using young age of cancer diagnosis and/or presence of family history of syndrome-associated is underutilized and ineffective...
August 17, 2017: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/28820681/efficacy-safety-and-cost-effectiveness-of-thermotherapy-in-the-treatment-of-leishmania-donovani-induced-cutaneous-leishmaniasis-a-randomized-controlled-clinical-trial
#16
Wardha F Refai, Nayani P Madarasingha, Buthsiri Sumanasena, Sudath Weerasingha, Amala De Silva, Rohini Fernandopulle, Abhay R Satoskar, Nadira D Karunaweera
Leishmania donovani causes cutaneous leishmaniasis (CL) in Sri Lanka. Standard treatment is multiple, painful doses of intralesional sodium stibogluconate (IL-SSG). Treatment failures are increasingly reported, hence the need to investigate alternatives. Efficacy, safety, and cost-effectiveness of thermotherapy were assessed for the first time for L. donovani CL. A single blinded noninferiority randomized controlled trial was conducted on new laboratory-confirmed CL patients with single lesions (N = 213). Selected patients were randomly assigned to 1) test group (N = 98; single session of radiofrequency-induced heat therapy (RFHT) given at 50°C for 30 seconds) and 2) control group (N = 115; 1-3 mL IL-SSG given weekly, until cure/10 doses)...
August 14, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28820581/a-simple-approach-to-the-visible-light-photoactivation-of-molecular-metal-oxides
#17
Satomi Fujimoto, Jamie M Cameron, Rong-Jia Wei, Katharina Kastner, David Robinson, Victor Sans, Graham N Newton, Hiroki Oshio
This study explores a new method to maximize the visible-light-driven photocatalytic performance of organic-inorganic hybrid polyoxometalates (POMs). Experimental and theoretical investigations of a family of phosphonate-substituted POMs show that modification of grafted organic moieties can be used to tune the electronic structure and photoactivity of the metal oxide component. Unlike fully inorganic polyoxotungstates, these organic-inorganic hybrid species are responsive to visible light and function as photocatalysts (λ > 420 nm) in the decomposition of a model environmental pollutant...
August 18, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28820354/validity-of-screening-for-psychiatric-disorders-in-unaccompanied-minor-asylum-seekers-use-of-computer-based-assessment
#18
Marianne Jakobsen, Melinda A Meyer DeMott, Trond Heir
Self-report screening is an important element of transcultural research. Problems concerning illiteracy, cultural sensitivity, and possible misunderstandings have been handled differently in different settings. The aim of this study was to evaluate the validity of two well-known instruments: the Hopkins Symptoms Check List (HSCL-25), and the Harvard Trauma Questionnaire (HTQ, Part IV), with a sample of 160 unaccompanied asylum-seeking adolescents from Afghanistan and Somalia. Assessments were performed 4 months after arrival in Norway, and the screening instruments were presented to the informants on computers with touch-screen function, using the program MultiCASI...
January 1, 2017: Transcultural Psychiatry
https://www.readbyqxmd.com/read/28820258/transition-metal-free-trifluoromethylation-of-aldehyde-derivatives-with-sodium-trifluoromethanesulfinate
#19
Zheng Tan, Shiwei Zhang, Yan Zhang, Yunpeng Li, Minjie Ni, Bainian Feng
A metal-free and cost-effective synthetic protocol for trifluoromethylation of N,N-disubstitutedhydrazones with Langlois' reagent (CF3SO2Na) to afford the corresponding functionalized trifluoromethylketone hydrazones has been established. It is proposed that a radical/SET mechanism proceeding via a trifluoroalkyl radical may be involved in the reaction. Applications of the methodology in industry will be found and the development of new methods for trifluoromethylation with Langlois' reagent will be continued in our laboratory...
August 18, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28820165/extraocular-needle-guided-haptic-insertion-technique-of-scleral-fixation-intraocular-lens-surgeries-x-nit
#20
Prabu Baskaran, Pratyusha Ganne, Sahil Bhandari, Seema Ramakrishnan, Rengaraj Venkatesh, Prashant Gireesh
The most challenging step in sutureless scleral fixation of intraocular lens (SFIOL) is exteriorization of haptics. The conventional handshake technique has a learning curve since it involves intraocular handing over of haptics from one forceps to another. Here, we describe "extraocular needle-guided haptic insertion technique" (X-NIT), a novel technique of exteriorizing haptics that totally eliminates intraocular manipulations. This method involves sequential introduction of two bent 26-gauge needles through the sclera (pars plicata zone) into the eye which are brought out through a sclerocorneal wound...
August 2017: Indian Journal of Ophthalmology
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