keyword
MENU ▼
Read by QxMD icon Read
search

paper

keyword
https://www.readbyqxmd.com/read/29054119/pollinator-independent-orchid-attracts-biotic-pollinators-due-the-production-of-lipoidal-substances
#1
E R Pansarin, P J Bergamo, M J Ferreira-Caliman
● Flowering plants often depend on the attraction of biotic pollinators for sexual reproduction. Consequently, the emergence and maintenance of selected floral attributes related to pollinator attraction and rewarding are driven by pollinators pressures. ● In this paper we explore the effect of pollinators, rainfall, and temperature and air humidity on the reproduction of a Brazilian terrestrial orchid, Cranichis candida based on data of phenology, flower resources, olfactory and visual attraction cues, pollinators and breeding system...
October 20, 2017: Plant Biology
https://www.readbyqxmd.com/read/29054071/inactivation-of-bovine-plasma-amine-oxidase-by-1-1-1-trihalo-3-aminopropanes
#2
Jisook Kim, Irene N Lee
In this paper, we report the inactivation of copper containing bovine plasma amine oxidase (BPAO) by a series of saturated alkylamines containing halogen atoms at γ-position, which are 1,1,1-trihalo-3-aminopropane, 1,1,1-trifluoro-2-hydroxy-3-aminopropane, 1,1,1-trichloro-2-hydroxy-3-aminopropane, and 1,1,1-trichloro-2-(2-phenethyloxy)-3-aminopropane. The trihalo-2-hydroxypropylamine analogs exhibited a time-dependent inactivation behavior of BPAO, with 1,1,1-trifluoro-2-hydroxy-3-aminopropane as the most efficient inactivator...
October 16, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/29054048/synthesis-and-characterization-of-incorporating-mussel-mimetic-moieties-into-photoactive-hydrogel-adhesive
#3
Zhiwen Zeng, Hongsheng Wang, Yosry Morsi, Xiumei Mo
Surgical adhesive is the optimal candidate for the replacement of traditional mechanical wound closure. In our paper, mussel adhesive proteins inspired hydrogel adhesive was prepared with 3, 4-dihydroxyphyenylanine acrylamide (DOPA-AA), poly (ethylene glycol) diacrylate (PEGDAA) and thiolated chitosan (CSS) by UV irradiation. DOPA-AA, containing catechol group and vinyl group, was successful synthesized and characterized by FTIR and (1)HNMR. The gelation time, equilibrium water content, degradation, materials properties and adhesive strength of the hydrogels were studied...
October 14, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29054037/director-field-analysis-dfa-exploring-local-white-matter-geometric-structure-in-diffusion-mri
#4
Jian Cheng, Peter J Basser
In Diffusion Tensor Imaging (DTI) or High Angular Resolution Diffusion Imaging (HARDI), a tensor field or a spherical function field (e.g., an orientation distribution function field), can be estimated from measured diffusion weighted images. In this paper, inspired by the microscopic theoretical treatment of phases in liquid crystals, we introduce a novel mathematical framework, called Director Field Analysis (DFA), to study local geometric structural information of white matter based on the reconstructed tensor field or spherical function field: (1) We propose a set of mathematical tools to process general director data, which consists of dyadic tensors that have orientations but no direction...
October 11, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/29053941/a-point-source-outbreak-of-coccidioidomycosis-among-a-highway-construction-crew
#5
Mark Nicas
Coccidioidomycosis is an infection caused by inhaling spores of the soil fungus Coccidioides immitis (hereafter termed Cocci). Cocci is endemic in certain areas of California. When soil containing the fungus is disturbed, as during earth-moving activities, respirable Cocci spores can become airborne and be inhaled by persons in the vicinity. This paper describes a cluster of seven Cocciodioidomycosis cases among a highway construction crew that occurred in June/July 2008 in Kern County, CA, which is among the most highly endemic regions for Cocci in California...
October 20, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/29053928/heat-stress-risk-profiles-for-three-non-woven-coveralls
#6
Ximena P Garzón-Villalba, Yougui Wu, Candi D Ashley, Thomas E Bernard
The ACGIH® Threshold Limit Value® (TLV®) is used to limit heat stress exposures so that most workers can maintain thermal equilibrium. That is, the TLV was set to an upper limit of Sustainable exposures for most people. This paper addresses the ability of the TLV to differentiate between Sustainable and Unsustainable heat exposures for four clothing ensembles over a range of environmental factors and metabolic rates (M). The four clothing ensembles (woven clothing, and particle barrier, water barrier and vapor barrier coveralls) represented a wide range of evaporative resistances...
October 20, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/29053917/a-novel-bioconjugation-strategy-using-elevated-hydrostatic-pressure-case-study-for-site-specific-pegylation-of-rhcntf
#7
Qi Wang, Chun Zhang, Fangxia Guo, Zenglan Li, Yong Dong Liu, Zhiguo Su
In this paper, we reported a novel strategy for site specific PEGylation of proteins using elevated hydrostatic pressure. The process was similar to the conventional one except the reactor was under elevated hydrostatic pressure. The model protein was recombinant human ciliary neurotrophic factor (rhCNTF), and the reagent was mono-methoxy-polyethylene glycol-maleimide (mPEG-MAL). PEGylation with mPEG-40kDa-MAL at pH 7.0 under normal pressure for 5 hours achieved less than 5% yield. In comparison, when the pressure was elevated, the PEGylation yield was increased dramatically, reaching nearly 90% at 250 MPa...
October 20, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/29053830/friedreich-s-ataxia-clinical-features-pathogenesis-and-management
#8
A Cook, P Giunti
Introduction: Friedreich's ataxia is the most common inherited ataxia. Sources of data: Literature search using PubMed with keywords Friedreich's ataxia together with published papers known to the authors. Areas of agreement: The last decade has seen important advances in our understanding of the pathogenesis of disease. In particular, the genetic and epigenetic mechanisms underlying the disease now offer promising novel therapeutic targets...
October 19, 2017: British Medical Bulletin
https://www.readbyqxmd.com/read/29053734/an-instrument-to-assess-the-statistical-intensity-of-medical-research-papers
#9
Pentti Nieminen, Jorma I Virtanen, Hannu Vähänikkilä
BACKGROUND: There is widespread evidence that statistical methods play an important role in original research articles, especially in medical research. The evaluation of statistical methods and reporting in journals suffers from a lack of standardized methods for assessing the use of statistics. The objective of this study was to develop and evaluate an instrument to assess the statistical intensity in research articles in a standardized way. METHODS: A checklist-type measure scale was developed by selecting and refining items from previous reports about the statistical contents of medical journal articles and from published guidelines for statistical reporting...
2017: PloS One
https://www.readbyqxmd.com/read/29053698/simultaneous-multi-surface-anodizations-and-stair-like-reverse-biases-detachment-of-anodic-aluminum-oxides-in-sulfuric-and-oxalic-acid-electrolyte
#10
Healin Im, Seok Hwan Jeong, Dong Hyuk Park, Sunkook Kim, Young Ki Hong
After reporting on the two-step anodization, nanoporous anodic aluminum oxides (AAOs) have been widely utilized in the versatile fields of fundamental sciences and industrial applications owing to their periodic arrangement of nanopores with relatively high aspect ratio. However, the techniques reported so far, which could be only valid for mono-surface anodization, show critical disadvantages, i.e., time-consuming as well as complicated procedures, requiring toxic chemicals, and wasting valuable natural resources...
October 5, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29053673/a-chronic-cardiac-ischemia-model-in-swine-using-an-ameroid-constrictor
#11
Karen J Keeran, Kenneth R Jeffries, Arthur D Zetts, Joni Taylor, Shawn Kozlov, Timothy J Hunt
Cardiovascular disease remains the number one cause of mortality in the United States. There are numerous approaches to treating these diseases, but regardless of the approach, an in vivo model is needed to test each treatment. The pig is one of the most used large animal models for cardiovascular disease. Its heart is very similar in anatomy and function to that of a human. The ameroid placement technique creates an ischemic area of the heart, which has many useful applications in studying myocardial infarction...
October 9, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29053658/low-level-laser-therapy-for-treatment-of-neurosensory-disorders-after-orthognathic-surgery-a-systematic-review-of-randomized-clinical-trials
#12
M-A-V Bittencourt, L-R Paranhos, P-R-S Martins-Filho
BACKGROUND: Low-level laser has been widely used in Dentistry and many studies have focused on its application in oral surgeries. This study was conducted with the aim of searching for scientific evidence concerning the effectiveness of laser to reduce pain or paresthesia related to orthognathic surgery. MATERIAL AND METHODS: An electronic search was performed in PubMed, Scopus, Science Direct, LILACS, SciELO, CENTRAL, Google Scholar, OpenGrey, and ClinicalTrials...
October 20, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/29053651/association-between-obesity-and-periodontal-disease-a-systematic-review-of-epidemiological-studies-and-controlled-clinical-trials
#13
M Martinez-Herrera, J Silvestre-Rangil, F-J Silvestre
BACKGROUND: Obesity is a very prevalent chronic disease worldwide and has been suggested to increase susceptibility of periodontitis. The aim of this paper was to provide a systematic review of the association between obesity and periodontal disease, and to determine the possible mechanisms underlying in this relationship. MATERIAL AND METHODS: A literature search was carried out in the databases PubMed-Medline and Embase. Controlled clinical trials and observational studies identifying periodontal and body composition parameters were selected...
October 20, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/29053646/periapical-implant-lesion-a-systematic-review
#14
J-A Blaya-Tárraga, J Cervera-Ballester, D Peñarrocha-Oltra, M Peñarrocha-Diago
PURPOSE: The aim of this study was to systematically review the evidence for periapical implant lesion, which makes a patient more susceptible to the periapical lesion, frequency, symptoms, signs (including radiological findings) and possible treatment options. MATERIAL AND METHODS: A systematic literature review and analysis of publications included in PubMed, Embase and Cochrane; articles published until March 2016; with a populations, exposures and outcomes (PEO) search strategy was performed, focused on the issue: "In patients with periapical lesion to the implant during the osseointegration, what symptoms, signs, and changes in complementary examination manifested, for according to that stage, be intervened with the appropriate approach?"...
October 20, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/29053644/dental-approach-for-apert-syndrome-in-children-a-systematic-review
#15
A-S López-Estudillo, M-A Rosales-Bérber, S Ruiz-Rodríguez, A Pozos-Guillén, Á Noyola-Frías, A Garrocho-Rangel
BACKGROUND: Apert Syndrome (AS), or type I acrocephalosyndactyly, is a rare, congenital craniosynostosis condition resulting from missense mutations in the gene encoding fibroblast growth factor receptor 2. It is characterized by three specific clinical features: brachycephalic skull; midface hypoplasia, and limb abnormalities (syndactyly of hands and feet). The disorder exhibits variable presentations in bones, brain, skin, internal organs, and in the oral/maxillofacial region. The aim of the present paper was to show the main results from a systematic review of AS...
October 20, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/29053641/wear-and-tear-of-tyres-a-stealthy-source-of-microplastics-in-the-environment
#16
REVIEW
Pieter Jan Kole, Ansje J Löhr, Frank G A J Van Belleghem, Ad M J Ragas
Wear and tear from tyres significantly contributes to the flow of (micro-)plastics into the environment. This paper compiles the fragmented knowledge on tyre wear and tear characteristics, amounts of particles emitted, pathways in the environment, and the possible effects on humans. The estimated per capita emission ranges from 0.23 to 4.7 kg/year, with a global average of 0.81 kg/year. The emissions from car tyres (100%) are substantially higher than those of other sources of microplastics, e.g., airplane tyres (2%), artificial turf (12-50%), brake wear (8%) and road markings (5%)...
October 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29053631/experience-of-japan-in-achieving-a-total-ban-on-asbestos
#17
Sugio Furuya, Ken Takahashi
This paper aims to examine the process through which a total ban on asbestos was achieved in Japan. We reconstructed the process, analyzed the roles of involved parties/events, and drew lessons from the Japanese experience of achieving the ban. In Japan, a bill to phase out asbestos was proposed in 1992 but rejected without deliberation. Wide support for such a ban subsequently grew, however, largely due to the actions of trade unions and civil societies in establishing a coalition, raising awareness, organizing asbestos victims and their families, and propagating information on international developments...
October 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29053630/rapid-classification-and-identification-of-chemical-components-of-schisandra-chinensis-by-uplc-q-tof-ms-combined-with-data-post-processing
#18
Shenshen Yang, Lanlan Shan, Houmin Luo, Xue Sheng, Jun Du, Yubo Li
Schisandra chinensis (known in Chinese as WuWeiZi, WWZ) has observable effects such as astringing the lung to stop coughs, arresting sweating, preserving semen and preventing diarrhea. The major components of WWZ include lignans, triterpenoids, organic acids and fatty acids. In this paper, a reliable method for the rapid identification of multiple components in WWZ by their characteristic fragments and neutral losses using UPLC-Q-TOF/MS technology was developed. After review of the literature and some reference experiments, the fragmentation pattern of several compounds were studied and summarized...
October 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29053625/traditional-uses-origins-chemistry-and-pharmacology-of-bombyx-batryticatus-a-review
#19
REVIEW
Meibian Hu, Zhijie Yu, Jiaolong Wang, Wenxiang Fan, Yujie Liu, Jianghua Li, He Xiao, Yongchuan Li, Wei Peng, Chunjie Wu
Bombyx batryticatus (B. batryticatus), a well-known traditional animal Chinese medicine, has been commonly used in China for thousands of years. The present paper reviewed advances in traditional uses, origin, chemical constituents, pharmacology and toxicity studies of B. batryticatus. The aim of the paper is to provide more comprehensive references for modern B. batryticatus study and application. In Traditional Chinese Medicine (TCM) culture, drugs containing B. batryticatus have been used to treat convulsions, headaches, skin prurigo, scrofula, tonsillitis and fever...
October 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29053614/crack-monitoring-method-for-an-frp-strengthened-steel-structure-based-on-an-antenna-sensor
#20
Zhiping Liu, Kai Chen, Zongchen Li, Xiaoli Jiang
Fiber-reinforced polymer (FRP) has been increasingly applied to steel structures for structural strengthening or crack repair, given its high strength-to-weight ratio and high stiffness-to-weight ratio. Cracks in steel structures are the dominant hidden threats to structural safety. However, it is difficult to monitor structural cracks under FRP coverage and there is little related research. In this paper, a crack monitoring method for an FRP-strengthened steel structure deploying a microstrip antenna sensor is presented...
October 20, 2017: Sensors
keyword
keyword
60738
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"