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https://www.readbyqxmd.com/read/29454271/the-complexation-of-rhizosphere-and-nonrhizosphere-soil-organic-matter-with-chromium-using-elemental-analysis-combined-with-ftir-spectroscopy
#1
Jiajun Wen, Zhongwu Li, Bin Huang, Ninglin Luo, Mei Huang, Ren Yang, Qiu Zhang, Xiuqing Zhai, Guangming Zeng
Complexation is a main mechanism controlling the reactions between soil organic matter (SOM) and heavy metals, which still have not been fully understood up to date. The objective of this study was to compare the SOM composition of nonrhizosphere and rhizosphere in low Cr treatment with that in high Cr treatment and to find out how metal concentrations affect the complexation with SOM. The results revealed that both the hydroxyl and the carboxyl were significantly different under different Cr treatment groups...
February 14, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29454132/diversion-of-complement-mediated-killing-by-bordetella
#2
Anaïs Thiriard, Dominique Raze, Camille Locht
The complement cascade participates in protection against bacterial infection and pathogens, including Bordetella pertussis, have developed complement-evading strategies. Here we discuss current knowledge on B. pertussis complement evasion strategies and the role of antibody-dependent complement-mediated killing in protection against B. pertussis infection pointing out important knowledge gaps for further research to improve current pertussis vaccines.
February 14, 2018: Microbes and Infection
https://www.readbyqxmd.com/read/29454063/characterization-of-nanomedicines-a-reflection-on-a-field-under-construction-needed-for-clinical-translation-success
#3
REVIEW
Jean-Baptiste Coty, Christine Vauthier
The nanotechnology revolution offers many expectations for the improvement of medicine treatments. At present, nanomedicine (NM) development is hampered by methodological barriers for a better characterization and a wider understanding of their in vivo behavior. While regulatory agencies setup guidelines to support NM translation from bench to bedside, the gap is still hardly overcome by main nanomedicines. One lever for filling this gap is a better characterization, thus increasing the global knowledge about the NM itself but also validate the confidence in terms of batch to batch reproducibility of such complex nano-objects...
February 14, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29453855/nerve-reinnervation-and-itch-behaviour-in-a-rat-burn-wound-model
#4
Tiam M Saffari, Barthold N Schüttenhelm, Johan W van Neck, Jan C Holstege
In this study, we investigated whether post-burn itch in rats, after a full thickness burn, is correlated to the nervous reinnervation of the burn wound area. For this purpose, we determined scratching duration (expressed as sec/hr) at 24 hours, 2, 4, 8 and 12 weeks post-burn and combined this with immunohistochemistry for protein gene product 9.5 (PGP9.5) to identify all nerve fibers, calcitonin gene related peptide (CGRP) to identify peptidergic fibers, tyrosine hydroxylase (TH) for sympathetic fibers and growth-associated protein 43 (GAP-43) for regrowing fibers...
February 17, 2018: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/29453620/long-term-hearing-results-of-stapedotomy-analysis-of-factors-affecting-outcome
#5
Dhooge Ingeborg, Desmedt Stéphanie, Maly Thomas, Loose David, Van Hoecke Helen
OBJECTIVE: To evaluate long-term hearing results of stapedotomy and analyze the influence of patient-, disease-, and procedure-related variables. STUDY DESIGN: Retrospective case series. SETTING: Tertiary referral center. PATIENTS: 230 ears (202 patients, 10-74 years) underwent stapedotomy for otosclerosis between January 2008 and August 2014. All cases had early postoperative follow-up (4 weeks post-surgery) and 181 cases had late postoperative follow-up (≥ 1 year, average 32...
February 16, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29453557/a-framework-for-regional-primary-health-care-to-organise-actions-to-address-health-inequities
#6
Toby Freeman, Sara Javanparast, Fran Baum, Anna Ziersch, Tamara Mackean
OBJECTIVES: Regional primary health-care organisations plan, co-ordinate, and fund some primary health-care services in a designated region. This article presents a framework for examining the equity performance of regional primary health-care organisations, and applies it to Australian Medicare Locals (funded from 2011 to 2015). METHODS: The framework was developed based on theory, literature, and researcher deliberation. Data were drawn from Medicare Local documents, an online survey of 210 senior Medicare Local staff, and interviews with 50 survey respondents...
February 16, 2018: International Journal of Public Health
https://www.readbyqxmd.com/read/29453459/ultrahigh-resolution-radiation-imaging-system-using-an-optical-fiber-structure-scintillator-plate
#7
Seiichi Yamamoto, Kei Kamada, Akira Yoshikawa
High resolution imaging of radiation is required for such radioisotope distribution measurements as alpha particle detection in nuclear facilities or high energy physics experiments. For this purpose, we developed an ultrahigh resolution radiation imaging system using an optical fiber structure scintillator plate. We used a ~1-μm diameter fiber structured GdAlO 3 :Ce (GAP) /α-Al 2 O 3 scintillator plate to reduce the light spread. The fiber structured scintillator plate was optically coupled to a tapered optical fiber plate to magnify the image and combined with a lens-based high sensitivity CCD camera...
February 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29453389/toxicity-classification-of-oxide-nanomaterials-effects-of-data-gap-filling-and-pchem-score-based-screening-approaches
#8
My Kieu Ha, Tung Xuan Trinh, Jang Sik Choi, Desy Maulina, Hyung Gi Byun, Tae Hyun Yoon
Development of nanotoxicity prediction models is becoming increasingly important in the risk assessment of engineered nanomaterials. However, it has significant obstacles caused by the wide heterogeneities of published literature in terms of data completeness and quality. Here, we performed a meta-analysis of 216 published articles on oxide nanoparticles using 14 attributes of physicochemical, toxicological and quantum-mechanical properties. Particularly, to improve completeness and quality of the extracted dataset, we adapted two preprocessing approaches: data gap-filling and physicochemical property based scoring...
February 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29453188/web-based-alcohol-smoking-and-substance-involvement-screening-test-results-for-the-general-spanish-population-cross-sectional-study
#9
Juan A Lopez-Rodriguez, Gabriel Rubio Valladolid
BACKGROUND: Information technology in health sciences could be a screening tool of great potential and has been shown to be effective in identifying single-drug users at risk. Although there are many published tests for single-drug screening, there is a gap for concomitant drug use screening in general population. The ASSIST (Alcohol, Smoking and Substance Involvement Screening Test) website was launched on February 2015 in Madrid, Spain, as a tool to identify those at risk. OBJECTIVE: The aim of this study was to describe the use of a tool and to analyze profiles of drug users, their consumption patterns, and associated factors...
February 16, 2018: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/29453141/dft-td-dft-calculations-spectroscopic-characterizations-ftir-nmr-uv-vis-molecular-docking-and-enzyme-inhibition-study-of-7-benzoyloxycoumarin
#10
Mahboob Alam, Mohammad Jane Alam, Shaista Azaz, Mehtab Parveen, Soonheum Park, Shabbir Ahmad
The quantum chemical study, spectroscopic characterization and biological activity of the pharmaceutically active 7-benzoyloxycoumarin (2) molecule have been presented. Potential energy surface (PES) scanning has been performed to search for the most stable molecular geometry of the present compound. The stable geometry in the ground state, IR, UV-Vis absorption and NMR ( 13 C, 1 H) spectra of the title compound were theoretically obtained and compared with the experimental one. Various theoretical molecular parameters like molecular energy, atomic charges, dipole moment, thermodynamic parameters, donor-acceptor natural bond orbital (NBO) hyperconjugative interaction energies, frontier molecular orbitals energies, HOMO-LUMO gap, molecular electrostatic potential, chemical reactivity descriptors, molecular polarizability and non-linear optical (NLO) properties are presented...
February 8, 2018: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/29453123/an-experiential-model-of-education-introduced-to-improve-the-confidence-of-student-midwives-in-undertaking-second-stage-management-of-the-perineum-ssmp
#11
Teresa Arias, Kirstie Coxon
BACKGROUND AND OBJECTIVE: the limited availability of high quality evidence related to second stage management of the perineum (SSMP) combined with a perceived shift in UK practice towards a 'hands off' the perineum/fetal head approach are likely to have impacted significantly on student midwives' understanding of SSMP. This paper presents a classroom based educational session using low fidelity simulation, which was designed in response to student feedback and aimed to improve confidence in this skill...
February 13, 2018: Midwifery
https://www.readbyqxmd.com/read/29453113/epidemiological-profile-of-epilepsy-in-low-income-populations
#12
REVIEW
Camilo Espinosa-Jovel, Rafael Toledano, Ángel Aledo-Serrano, Irene García-Morales, Antonio Gil-Nagel
Epilepsy is a global disease with an unequal distribution. About 80% of the affected individuals reside in low and middle income countries. The incidence and prevalence of epilepsy in low income populations is higher than in the rest of the world, this is partly explained by some risk factors such as head trauma, perinatal injury and CNS infections, which are more common in poor regions, especially in rural areas. Epilepsy is considered a treatable condition with high rates of therapeutic response. About three fourths of patients achieve control of the disease with the use of antiepileptic drugs, however, despite this benign prognosis, over 75% of patients from low income populations do not receive treatment at all...
February 8, 2018: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/29453083/nonuniform-sampling-by-quantiles
#13
D Levi Craft, Reilly E Sonstrom, Virginia G Rovnyak, David Rovnyak
A flexible strategy for choosing samples nonuniformly from a Nyquist grid using the concept of statistical quantiles is presented for broad classes of NMR experimentation. Quantile-directed scheduling is intuitive and flexible for any weighting function, promotes reproducibility and seed independence, and is generalizable to multiple dimensions. In brief, weighting functions are divided into regions of equal probability, which define the samples to be acquired. Quantile scheduling therefore achieves close adherence to a probability distribution function, thereby minimizing gaps for any given degree of subsampling of the Nyquist grid...
February 13, 2018: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/29453036/identifying-the-relative-importance-of-non-suicidal-self-injury-features-in-classifying-suicidal-ideation-plans-and-behavior-using-exploratory-data-mining
#14
Taylor A Burke, Ross Jacobucci, Brooke A Ammerman, Marilyn Piccirillo, Michael S McCloskey, Richard G Heimberg, Lauren B Alloy
Individuals with a history of non-suicidal self-injury (NSSI) are at alarmingly high risk for suicidal ideation (SI), planning (SP), and attempts (SA). Given these findings, research has begun to evaluate the features of this multi-faceted behavior that may be most important to assess when quantifying risk for SI, SP, and SA. However, no studies have examined the wide range of NSSI characteristics simultaneously when determining which NSSI features are most salient to suicide risk. The current study utilized three exploratory data mining techniques (elastic net regression, decision trees, random forests) to address these gaps in the literature...
January 31, 2018: Psychiatry Research
https://www.readbyqxmd.com/read/29453008/forensic-image-analysis-cctv-distortion-and-artefacts
#15
REVIEW
Dilan Seckiner, Xanthé Mallett, Claude Roux, Didier Meuwly, Philip Maynard
As a result of the worldwide deployment of surveillance cameras, authorities have gained a powerful tool that captures footage of activities of people in public areas. Surveillance cameras allow continuous monitoring of the area and allow footage to be obtained for later use, if a criminal or other act of interest occurs. Following this, a forensic practitioner, or expert witness can be required to analyse the footage of the Person of Interest. The examination ultimately aims at evaluating the strength of evidence at source and activity levels...
February 6, 2018: Forensic Science International
https://www.readbyqxmd.com/read/29453004/electrochemical-surface-enhanced-raman-scattering-measurement-on-ligand-capped-pbs-quantum-dots-at-gap-of-au-nanodimer
#16
Xiaowei Li, Hiro Minamimoto, Kei Murakoshi
The vibrational characteristics of ligand-capped lead sulfide (PbS) quantum dots (QDs) were clarified via electrochemical surface-enhanced Raman spectroscopy (EC-SERS) using a hybridized system of gold (Au) nanodimers and PbS QDs under electrochemical potential control. Enhanced electromagnetic field caused by the coupling of QDs with plasmonic Au nanodimers allowed the characteristic behavior of the ligand oleic acid (OA) on the PbS QD surface to be detected under electrochemical potential control. Binding modes between the QDs and OA molecules were characterized using synchronous two-dimensional correlation spectra at distinct electrochemical potentials, confirming that the bidentate bridging mode was probably the most stable mode even under relatively negative potential polarization...
February 7, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29452994/transmission-routes-of-respiratory-viruses-among-humans
#17
REVIEW
Jasmin S Kutter, Monique I Spronken, Pieter L Fraaij, Ron Am Fouchier, Sander Herfst
Respiratory tract infections can be caused by a wide variety of viruses. Airborne transmission via droplets and aerosols enables some of these viruses to spread efficiently among humans, causing outbreaks that are difficult to control. Many outbreaks have been investigated retrospectively to study the possible routes of inter-human virus transmission. The results of these studies are often inconclusive and at the same time data from controlled experiments is sparse. Therefore, fundamental knowledge on transmission routes that could be used to improve intervention strategies is still missing...
January 17, 2018: Current Opinion in Virology
https://www.readbyqxmd.com/read/29452866/intrapatient-study-comparing-3d-printed-bolus-versus-standard-vinyl-gel-sheet-bolus-for-postmastectomy-chest-wall-radiation-therapy
#18
James L Robar, Kathryn Moran, James Allan, James Clancey, Tami Joseph, Krista Chytyk-Praznik, R Lee MacDonald, John Lincoln, Parisa Sadeghi, Robert Rutledge
PURPOSE: This patient study evaluated the use of 3-dimensional (3D) printed bolus for chest wall radiation therapy compared with standard sheet bolus with regard to accuracy of fit, surface dose measured in vivo, and efficiency of patient setup. By alternating bolus type over the course of therapy, each patient served as her own control. METHODS AND MATERIALS: For 16 patients undergoing chest wall radiation therapy, a custom 5.0 mm thick bolus was designed based on the treatment planning computed tomography scan and 3D printed using polylactic acid...
December 24, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29452782/multimorbidity-and-quality-of-life-at-mid-life-a-systematic-review-of-general-population-studies
#19
REVIEW
Jeeva Kanesarajah, Michael Waller, Jennifer A Whitty, Gita D Mishra
There is substantial multimorbidity at mid-life but little is known about the strength of evidence on multimorbidity and health-related quality of life (HrQoL) at mid-life. This review addresses this gap, focusing on studies of the general population. PubMed, Web of Science, Embase and APA PsycNET databases were screened on 6 March 2017 for original research on multimorbidity and HrQoL in adults aged 40-65 years from the general population. Studies focused on index conditions, using single-item HrQoL measures, unlikely to represent the general population (e...
March 2018: Maturitas
https://www.readbyqxmd.com/read/29452750/-consequences-of-chronic-pain-in-childhood-and-adolescence
#20
Rocío Cáceres-Matos, Eugenia Gil-García, Sergio Barrientos-Trigo, Esther Molina, Ana María Porcel-Gálvez
OBJECTIVE: Our aim was to examine and map the consequences of chronic pain in children and adolescents. METHOD: A scoping review was carried out in the international databases (PubMed, SCOPUS, WOS and CINAHL, Cochrane Library) and gray literature. We included documents that addressed psychosocial aspects that influence chronic pain, published in English between 2010 and 2016. We excluded the documents that dealt with pharmacological treatments, chronic pain derived from surgical interventions or where there was no access to full text...
February 13, 2018: Gaceta Sanitaria
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