303,197 results match your criteria Journal of the Air & Waste Management Association 1995[Journal]


Separation of biologically relevant isomers on an Orbitrap Mass Spectrometer using High Resolution Drift Tube Ion Mobility and Varied Drift Gas Mixtures.

Rapid Commun Mass Spectrom 2019 Feb 17. Epub 2019 Feb 17.

Excellims Corporation, Acton, MA, USA.

Rationale: Atmospheric pressure drift tube ion mobility is a powerful addition to the Orbitrap mass spectrometer enabling direct separation of isomers. Apart from offering high resolving power in a compact design, it also facilitates optimization of the separation gas, as shown here for a series of biologically relevant isomer pairs.

Methods: An Excellims MA3100 High Resolution Atmospheric Pressure Ion Mobility Spectrometer (HR-IMS) was coupled to a Thermo Scientific Q Exactive Focus hybrid quadrupole-Orbitrap mass spectrometer, using an Excellims Directspray Electrospay Ionization source and a gas mixture setup to provide various drift gases (air, CO and mixtures). Read More

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http://dx.doi.org/10.1002/rcm.8414DOI Listing
February 2019

Abating N in Nordic agriculture - Policy, measures and way forward.

J Environ Manage 2019 Feb 14;236:674-686. Epub 2019 Feb 14.

Natural Resources Institute Finland (Luke), Tietotie 4, FI-31600, Jokioinen, Finland.

During the past twenty years, the Nordic countries (Denmark, Sweden, Finland and Norway) have introduced a range of measures to reduce losses of nitrogen (N) to air and to aquatic environment by leaching and runoff. However, the agricultural sector is still an important N source to the environment, and projections indicate relatively small emission reductions in the coming years. The four Nordic countries have different priorities and strategies regarding agricultural N flows and mitigation measures, and therefore they are facing different challenges and barriers. Read More

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http://dx.doi.org/10.1016/j.jenvman.2018.11.143DOI Listing
February 2019

Attributing mortality from temperature extremes: A time series analysis in Varanasi, India.

Sci Total Environ 2019 Feb 7;665:453-464. Epub 2019 Feb 7.

DST-Mahamana Centre of Excellence in Climate Change Research, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, India; Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, India. Electronic address:

Climate extremes are often associated with increased human mortality and such association varies considerably with space and time. We therefore, aimed to systematically investigate the effects of temperature extremes, daily means and diurnal temperature variations (DTV) on mortality in the city of Varanasi, India during 2009-2016. Time series data on daily mortality, air quality (SO, NO, O and PM) and weather variables were obtained from the routinely collected secondary sources. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.02.074DOI Listing
February 2019

Dissemination of Escherichia coli carrying plasmid-mediated quinolone resistance (PMQR) genes from swine farms to surroundings.

Sci Total Environ 2019 Jan 25;665:33-40. Epub 2019 Jan 25.

College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Sino-German Cooperative Research Centre for Zoonosis of Animal Origin Shandong Province, 61 Daizong Road, Tai'an 271000, Shandong Province, China. Electronic address:

Different samples were collected from three swine farms in China to investigate the spread of antibiotic-resistant Escherichia coli. A total of 130 E. coli isolates were obtained from feces, air, river water, silt, and soil samples and characterized. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.01.272DOI Listing
January 2019

Reconstruction of high spatial resolution surface air temperature data across China: A new geo-intelligent multisource data-based machine learning technique.

Sci Total Environ 2019 Feb 10;665:300-313. Epub 2019 Feb 10.

Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education, Beijing Normal University, Beijing 100875, China; Faculty of Geographical Science, Academy of Disaster Reduction and Emergency Management, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Earth Surface Processes and Resources Ecology, Beijing Normal University, Beijing 100875, China.

Good knowledge of the surface air temperature (SAT) is critical for scientific understanding of ecological environment changes and land-atmosphere thermodynamic interactions. However, sparse and uneven spatial distribution of the temperature gauging stations introduces remarkable uncertainties into analysis of the SAT pattern. From a geo-intelligent perspective, here we proposed a new SAT reconstruction method based on the multisource data and machine learning technique which was developed by considering autocorrelation of the in situ observed SAT in both space and time, or simply STAML, i. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.02.077DOI Listing
February 2019

Quantification of particulate matter, tracking the origin and relationship between elements for the environmental monitoring of the Antarctic region.

Sci Total Environ 2019 Feb 8;665:125-132. Epub 2019 Feb 8.

Laser Lab, Chemistry & Environment Group, Department of Analytical Chemistry, Faculty of Sciences, University of Zaragoza. Pedro Cerbuna 12, 50009 Zaragoza, Spain.

The present work reports on the analysis of atmospheric aerosols in the Antarctic region, Deception Island, collected during austral summer 2016-2017 by field measurements carried from Gabriel de Castilla Spanish Research Station. A low-volume sampler was used to capture the aerosols depositing them onto the air filters. A chemical analysis of the samples using Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) and Inductively Coupled Plasma-Atomic Emission Spectroscopy (ICP-AES) provided the total carbon (TC), organic carbon (OC), elemental Carbon (EC) and elements such as Al, Ca, Fe, K, Mg, Na, P, S, Cu, Pb, Sr, Ti, Zn and Cr. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.02.116DOI Listing
February 2019

Emission characteristics of parent and halogenated PAHs in simulated municipal solid waste incineration.

Sci Total Environ 2019 Feb 1;665:11-17. Epub 2019 Feb 1.

School of Urban Planning and Design, Shenzhen Graduate School, Peking University, Shenzhen 518055, China. Electronic address:

With a self-designed small-scale waste incinerator, emission behaviors of parent and halogenated polycyclic aromatic hydrocarbons (PAHs and HPAHs) were simulated and visualized. According to our results, the 2-3 ring PAHs have higher emission factors (EFs) than those of the 4-6 ring PAHs during waste incineration. The EFs of individual HPAHs are comparable in all incineration products. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.02.002DOI Listing
February 2019

Peripheral refraction and spherical aberration profiles with single vision, bifocal and multifocal soft contact lenses.

J Optom 2019 Feb 13. Epub 2019 Feb 13.

Brien Holden Vision Institute, Sydney, NSW, Australia; School of Optometry and Vision Sciences, UNSW, Sydney, NSW, Australia. Electronic address:

Purpose: To compare the peripheral refraction and spherical aberration profiles along three visual field meridians of 16 commercial single vision (SV), bifocal (BF) and multifocal (MF) test contact lenses with a single vision control.

Method: Forty-four participants [24.2±2. Read More

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http://dx.doi.org/10.1016/j.optom.2018.11.002DOI Listing
February 2019

Low-loss ultrasound transmission through glass assisted by resonance.

Ultrasonics 2019 Jan 31. Epub 2019 Jan 31.

SINTEF Digital, Dept. of Microsystems and Nanotechnology, Gaustadalléen 23C, 0373 Oslo, Norway.

We have investigated transmission of ultrasound signals from a speaker in air through a 400 µm thick borosilicate glass plate, similar to those found in consumer electronics products such as mobile phones and tablets. In order to enhance transmission, we took advantage of resonances in the glass plate and a cavity, which is placed between the glass and the microphone. The results show that it is possible to achieve transmission of a signal with bandwidth of approximately 5 kHz with less than -10 dB attenuation, and only -2 dB attenuation at the resonance peak frequency. Read More

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http://dx.doi.org/10.1016/j.ultras.2019.01.011DOI Listing
January 2019

Revealing the structure of the associations between housing system, facilities, management and welfare of commercial laying hens using Additive Bayesian Networks.

Prev Vet Med 2019 Mar 9;164:23-32. Epub 2019 Jan 9.

Department of Animal Environment and Health, Unit of Animal Welfare, Swedish University of Agricultural Sciences, Box 7068, Uppsala, Sweden.

After the ban of battery cages in 1988, a welfare control programme for laying hens was developed in Sweden. Its goal was to monitor and ensure that animal welfare was not negatively affected by the new housing systems. The present observational study provides an overview of the current welfare status of commercial layer flocks in Sweden and explores the complexity of welfare aspects by investigating and interpreting the inter-relationships between housing system, production type (i. Read More

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http://dx.doi.org/10.1016/j.prevetmed.2019.01.004DOI Listing

Detailed standardized protocol to prevent cerebrospinal fluid shunt infection.

J Neurosurg 2019 Feb 15:1-5. Epub 2019 Feb 15.

OBJECTIVEWhile cerebrospinal fluid (CSF) shunt surgery plays an essential role in the treatment of hydrocephalus, postoperative infection due to the implantation of foreign materials is still one of the most common and potentially serious complications of this procedure. Because no previously reported protocol has been proven to prevent postoperative infection after CSF shunt surgeries in adults, the authors investigated the effectiveness of a protocol introduced in their institution.METHODSA detailed standardized surgical protocol to prevent infection in patients undergoing CSF shunt surgeries was introduced in the authors' institution in December 2011. Read More

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http://dx.doi.org/10.3171/2018.10.JNS181432DOI Listing
February 2019
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Validation of source detective system of the radionuclides measured in the atmosphere using a field tracer experiment.

Environ Pollut 2019 Feb 7;248:10-17. Epub 2019 Feb 7.

Environmental Safety Research Division, Korea Atomic Energy Research Institute, Daedeok-daero 989-111, Yuseong-gu, Daejeon, 305-353, Republic of Korea.

A source detective system has been developed to estimate unknown source regions and release rates of radionuclides released into the air from covert nuclear activities and accidents. This system is composed of trajectory, atmospheric dispersion, and source term estimation models. Simulated results were compared with the measurements of a field tracer experiment performed at the Yeonggwang nuclear power plant in Korea in May 1996. Read More

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http://dx.doi.org/10.1016/j.envpol.2019.01.121DOI Listing
February 2019

Concentrations of brominated and phosphorous flame retardants in Finnish house dust and insights into children's exposure.

Chemosphere 2019 Feb 8;223:99-107. Epub 2019 Feb 8.

Norwegian Institute of Public Health, Department of Environmental Exposure and Epidemiology, P.O. Box 4404, Nydalen, 0403, Oslo, Norway.

Brominated and phosphorous flame retardants (BFRs, PFRs) are added to household and consumer products to reduce their flammability. Some FRs are persistent in the environment and may have adverse health effects. As exposure indoors contributes significantly to total exposure, we wanted to estimate the exposure of children (3 years of age) through dust ingestion, inhalation, and dermal absorption. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.027DOI Listing
February 2019

Twice the effort: Ineffectiveness of selecting air pollution control targets with emission quantity for risk reduction.

Environ Int 2019 Feb 13;125:489-496. Epub 2019 Feb 13.

Graduate Institute of Environmental Engineering, National Taiwan University, Taiwan. Electronic address:

Protection of human health from air pollution has been typically pursued primarily via regulations of air quality standards and emission standards. Although reducing air pollution from the largest sources and placing more stringent emission limits on the industries of focus is a criterion used by decision makers to control air pollution, it is not clear whether this criterion is the most effective and efficient in improving health protection. Pollutants released from sources into the environment are spatially fluctuating rather than uniformly distributed, and hence, health risk is an issue of geographic variability. Read More

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http://dx.doi.org/10.1016/j.envint.2018.12.001DOI Listing
February 2019

Towards a fuller assessment of benefits to children's health of reducing air pollution and mitigating climate change due to fossil fuel combustion.

Environ Res 2018 Dec 12;172:55-72. Epub 2018 Dec 12.

Abt Associates, Boulder, CO, USA. Electronic address:

Background: Fossil fuel combustion by-products, including particulate matter (PM), polycyclic aromatic hydrocarbons (PAH), nitrogen dioxide (NO) and carbon dioxide (CO), are a significant threat to children's health and equality. Various policies to reduce emissions have been implemented to reduce air pollution and mitigate climate change, with sizeable estimated health and economic benefits. However, only a few adverse outcomes in children have been considered, resulting in an undercounting of the benefits to this vulnerable population. Read More

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http://dx.doi.org/10.1016/j.envres.2018.12.016DOI Listing
December 2018

Mediastinal, retroperitoneal, and subcutaneous emphysema due to sigmoid colon penetration: A case report and literature review.

Int J Surg Case Rep 2019 Feb 10;55:213-217. Epub 2019 Feb 10.

Department of Acute Care Surgery, Shimane University, Faculty of Medicine, Shimane, Japan.

Introduction: Mediastinal and subcutaneous emphysema usually result from spontaneous rupture of the alveolar wall. We present an extremely rare case of massive mediastinal, retroperitoneal, and subcutaneous emphysema due to the penetration of the colon into the mesentery.

Presentation Of Case: A 57-year-old man presented to our institution with a history of chest pain. Read More

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http://dx.doi.org/10.1016/j.ijscr.2019.02.003DOI Listing
February 2019

The first case report of bilateral spontaneous otogenic pneumocephalus.

World Neurosurg 2019 Feb 13. Epub 2019 Feb 13.

Dep. of Neurosurgery and Neurooncology, Charles University in Prague, 1st Medical Faculty, Central Military Hospital Stresovice, Czech Republic. Electronic address:

Background: Pneumocephalus is commonly associated with cranial trauma including surgical interventions. Spontaneous pneumocephalus on the other hand is a rare diagnosis. Reported cases were predominantly unilateral. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.01.232DOI Listing
February 2019

Cough in exercise and athletes.

Pulm Pharmacol Ther 2019 Feb 13. Epub 2019 Feb 13.

Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Canada.

In the general population, particularly in individuals with asthma, cough is a common symptom, often reported after exertion, although regular exercise may be associated with a reduction in the prevalence of cough. In athletes, exercise-induced cough is also a particularly frequent symptom. The main etiologies of cough in athletes are somewhat similar to non-athletes, including asthma/airway hyperresponsiveness, upper airways disorders such as allergic or non-allergic rhinitis, and exercise-induced laryngeal obstruction, although these conditions are more frequently observed in athletes. Read More

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http://dx.doi.org/10.1016/j.pupt.2019.02.003DOI Listing
February 2019

Do theta oscillations explain the somatosensory change detection mechanism?

Biol Psychol 2019 Feb 13. Epub 2019 Feb 13.

Intelligent Robotics Institute, School of Mechatronical Engineering, Beijing Institute of Technology, Beijing, China; Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, Beijing, China.

Recent research has indicated that the mismatch negativity (MMN) is elicited in response to a discernible small change of a somatosensory stimulus applied on the hand. However, the neural mechanism for detecting small change of somatosensory stimulus remains unknown. In the present study, we developed a novel pressure stimulation device using air jet applied on the index finger pad, and determined the just noticeable differences (JNDs) of pressure discrimination for each subject. Read More

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http://dx.doi.org/10.1016/j.biopsycho.2019.02.001DOI Listing
February 2019
3.403 Impact Factor

Detection of outliers in pollutant emissions from the Soto de Ribera coal-fired power plant using functional data analysis: a case study in northern Spain.

Environ Sci Pollut Res Int 2019 Feb 15. Epub 2019 Feb 15.

Department of Mathematics, Faculty of Sciences, University of Oviedo, 33007, Oviedo, Spain.

For more than a century, air pollution has been one of the most important environmental problems in cities. Pollution is a threat to human health and is responsible for many deaths every year all over the world. This paper deals with the topic of functional outlier detection. Read More

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http://dx.doi.org/10.1007/s11356-019-04435-4DOI Listing
February 2019

Dynamic gas extraction of iodine in combination with a silver triangular nanoplate-modified paper strip for colorimetric determination of iodine and of iodine-interacting compounds.

Mikrochim Acta 2019 Feb 15;186(3):188. Epub 2019 Feb 15.

Department of Chemistry, Lomonosov Moscow State University, Leninskie gory, 1/3, 119991, Moscow, Russia.

A method is described for sensitive and selective detection of iodine by using a paper strip modified with silver triangular nanoplates (AgTNPs). It is based on the extraction of iodine from a solution into a flow of air via dynamic gas extraction and transferring it through a reactive paper modified with AgTNPs. The interaction of AgTNPs with iodine results in a color change from blue to white. Read More

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http://dx.doi.org/10.1007/s00604-019-3300-5DOI Listing
February 2019

CoO/carbon hollow nanospheres for resistive monitoring of gaseous hydrogen sulfide and for nonenzymatic amperometric sensing of dissolved hydrogen peroxide.

Mikrochim Acta 2019 Feb 15;186(3):184. Epub 2019 Feb 15.

Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China.

CoO/carbon hybrid hollow nanospheres (hs-CoO/C) with an empty cavity and a thin shell, were synthesized starting from the pectin and cobalt acetate via cross-linking deposition at room temperature and post-calcination. The hierarchical structure is constructed from the interconnected nanoparticles in the residual carbon matrix, and the carbon content can be adjusted by changing the calcination temperature. The gas sensor based on hs-CoO/C calcined at 300 °C in air shows high response towards 50 ppm of HS (S = 95. Read More

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http://dx.doi.org/10.1007/s00604-019-3253-8DOI Listing
February 2019

Safety first: significant risk of air embolism in laparoscopic gasketless insufflation systems.

Surg Endosc 2019 Feb 15. Epub 2019 Feb 15.

Department of Surgery, St. Luke's Regional Medical Center, Boise, ID, USA.

Background: Gasketless laparoscopic insufflator systems are marketed for the ability to prevent desufflation of pneumoperitoneum during laparoscopy. However, surgeons raised concern for possible introduction of non-absorbable room air, including oxygen (O), with these systems. A community-university collaborative was created to test this hypothesis. Read More

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http://dx.doi.org/10.1007/s00464-019-06683-4DOI Listing
February 2019

Ocean variability and air-sea fluxes produced by atmospheric rivers.

Sci Rep 2019 Feb 15;9(1):2152. Epub 2019 Feb 15.

NOAA/ESRL, Boulder, USA.

Atmospheric rivers (ARs) cause heavy precipitation and flooding in the coastal areas of many mid-latitude continents, and thus the atmospheric processes associated with the AR have been intensively studied in recent years. However, AR-associated ocean variability and air-sea fluxes have received little attention because of the lack of high-resolution ocean data until recently. Here we demonstrate that typical ARs can generate strong upper ocean response and substantial air-sea fluxes using a high-resolution (1/12°) ocean reanalysis. Read More

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http://www.nature.com/articles/s41598-019-38562-2
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http://dx.doi.org/10.1038/s41598-019-38562-2DOI Listing
February 2019
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Predictors of residential mobility and its impact on air pollution exposure among children diagnosed with early childhood leukemia.

J Expo Sci Environ Epidemiol 2019 Feb 15. Epub 2019 Feb 15.

Department of Epidemiology, Human Genetics and Environmental Sciences, Southwest Center for Occupational and Environmental Health, The University of Texas Health Science Center at Houston (UTHealth) School of Public Health, 1200 Pressler Street, Houston, TX, 77030, USA.

Epidemiology studies relying on one address to assign exposures over time share common methodological limitations in failing to account for mobility that may introduce potential exposure misclassification. Using Texas birth certificate and cancer registry data, we identified predictors of residential mobility among mothers of children diagnosed with early childhood leukemia in Texas from 1995 to 2011. We used U. Read More

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http://dx.doi.org/10.1038/s41370-019-0126-5DOI Listing
February 2019

Stable radical anions generated from a porous perylenediimide metal-organic framework for boosting near-infrared photothermal conversion.

Nat Commun 2019 Feb 15;10(1):767. Epub 2019 Feb 15.

State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, 100029, Beijing, P. R. China.

Radical anions of electron-deficient systems are widely used, but are easily reoxidized upon exposure to air. Therefore, the stabilization of radical anions under ambient conditions is of great significance, but still remains a scientific challenge. Herein, perylenediimide is employed to prepare a crystalline metal-organic framework for stabilizing radical anions without extensive chemical modification. Read More

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http://dx.doi.org/10.1038/s41467-019-08434-4DOI Listing
February 2019

1D versus 2D cocrystals growth via microspacing in-air sublimation.

Nat Commun 2019 Feb 15;10(1):761. Epub 2019 Feb 15.

State Key Laboratory of Crystal Materials, Shandong University, 250100, Jinan, Shandong, People's Republic of China.

Organic cocrystals possess valuable properties owing to the synergistic effect of the individual components. However, the growth of molecular cocrystals is still in its primary stage. Here we develop a microspacing in-air sublimation method to grow organic cocrystals, and furthermore to realize morphology control on them, which is essential for structure-property relations. Read More

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http://dx.doi.org/10.1038/s41467-019-08712-1DOI Listing
February 2019

[A Simplifed Model Eye for Testing Fundus Imaging Device].

Zhongguo Yi Liao Qi Xie Za Zhi 2019 Jan;43(1):21-24

Zhejiang Institute of Medical Device Testing, Hangzhou, 310018.

Based on the Gullstrand I model eye, a simplified model eye for testing fundus imaging device is designed. The model eye can reach the following requirements:(1) The refractive characteristics of the ocular refractive tissue are simulated, and the equivalent focal length in air is 17 mm; (2) The differences between relative refractive index differences of the adjacent materials of the simplified model eye and relative refractive index differences of any adjacent two layers (cornea and aqueous humor, aqueous humor and lens, lens and vitreous body) of the Gullstrand I model eye are not more than 1%; (3) In the case of the incident aperture diameter of 3 mm, the differences of radii of the diffuse spots formed by the paraxial light and the axial light are not more than 15%; (4) The differences of angles of chief ray and tangent line of the fundus are not more than 1°; (5) In the case of the incident aperture diameter of 3 mm, the differences of MTF values of the near axis light are not more than 0.1. Read More

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http://dx.doi.org/10.3969/j.issn.1671-7104.2019.01.006DOI Listing
January 2019

Efficient, stable, oxidation resistant and cost effective epoxide modified polyamine adsorbents for CO2 capture from various sources including air.

ChemSusChem 2019 Feb 15. Epub 2019 Feb 15.

University of Southern California, Loker Hydrocarbon Research Institute, 837 Bloom Walk, University Park, 90089-1661, Los Angeles, UNITED STATES.

Carbon dioxide adsorbents based on the reaction of pentaethylenehaxamine (PEHA) or tetraethylenepentamine (TEPA) with propylene oxide (PO) were easily prepared in "one pot" by impregnation on a silica support in water. The starting materials are readily available and have a low cost facilitating the production of the adsorbents on a large scale. The prepared polyamine/epoxide adsorbents were efficient in capturing CO2 and regenerable under mild conditions (50-85 °C). Read More

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http://dx.doi.org/10.1002/cssc.201802978DOI Listing
February 2019

Matrine attenuates high-fat diet-induced in vivo and ox-LDL-induced in vitro vascular injury by regulating the PKCα/eNOS and PI3K/Akt/eNOS pathways.

J Cell Mol Med 2019 Feb 15. Epub 2019 Feb 15.

Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi'an, PR China.

Lipid metabolism disorders lead to vascular endothelial injury. Matrine is an alkaloid that has been used to improve obesity and diabetes and for the treatment of hepatitis B. However, its effect on lipid metabolism disorders and vascular injury is unclear. Read More

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http://dx.doi.org/10.1111/jcmm.14180DOI Listing
February 2019

Factors Affecting Measurement of Equilibration Time of Dry Goods Loads in Autoclaves.

PDA J Pharm Sci Technol 2019 Feb 15. Epub 2019 Feb 15.

Genentech, Inc.

Equilibration time of an autoclave is defined as the period of time that elapses between the attainment of sterilization temperature at the reference measurement point of the autoclave chamber and the attainment of sterilization temperature at all measurement probes within the dry goods load placed within the autoclave during a sterilization cycle. Equilibration time is an indicator of the ability of the autoclave to remove air from and subsequently sterilize the dry goods load placed within the autoclave chamber. Therefore equilibration time is an indicator of the efficacy of an autoclave cycle. Read More

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http://dx.doi.org/10.5731/pdajpst.2018.009225DOI Listing
February 2019

A Tale of Two Sterilizers.

Authors:
James P Agalloco

PDA J Pharm Sci Technol 2019 Feb 15. Epub 2019 Feb 15.

Agalloco & Associates Inc.

Steam sterilization is widely used across the healthcare industry, and among the most documented and standardized. Despite its broad application, there is considerable confusion regarding the different process control consideration and sterilizer designs necessary for its successful use. The methods and equipment used for porous (equipment, components and tools) loads are established to address air removal and steam penetration as these are critical to process efficacy. Read More

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http://dx.doi.org/10.5731/pdajpst.2019.009993DOI Listing
February 2019

Randomised controlled trial of real-time feedback and brief coaching to reduce indoor smoking.

Tob Control 2019 Feb 15. Epub 2019 Feb 15.

Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University, San Diego, California, USA.

Background: Previous secondhand smoke (SHS) reduction interventions have provided only feedback on reported smoking behaviour, such as coaching, or presenting results from child cotinine assays or air particle counters.

Design: This SHS reduction trial assigned families at random to brief coaching and continuous real-time feedback (intervention) or measurement-only (control) groups.

Participants: We enrolled 298 families with a resident tobacco smoker and a child under age 14. Read More

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http://dx.doi.org/10.1136/tobaccocontrol-2018-054717DOI Listing
February 2019

Effect of different surface treatment on the shear bond strength of metal brackets to bleached and desensitized enamel.

Int Orthod 2019 Feb 12. Epub 2019 Feb 12.

Department of orthodontics, University of Washington, Seattle, WA, USA.

Introduction: The aim of this study was to determine the effect of bleaching and desensitizing on shear bond strength (SBS) of metal brackets to enamel.

Methods: One hundred extracted human premolar were randomly assigned to 5 groups of 20. In the first group (control), no bleaching or desensitizing agent was used. Read More

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http://dx.doi.org/10.1016/j.ortho.2019.01.008DOI Listing
February 2019

Epidemiology study of pediatric primary intussusception aged ≤24 months in pre-rotavirus vaccine era of Jinan, China.

Vaccine 2019 Feb 12. Epub 2019 Feb 12.

Jinan Administrative Committee of International Center for Medical Sciences, Xiyuan building, Huaiyin District, Jinan, Shandong Province, China.

Introduction: Few studies have reported on the epidemiological characteristics of pediatric primary intussusception in the pre-rotavirus vaccine era of China. It is important to complementary baseline data before rotavirus vaccine introduction in China. This study conduct a retrospective investigation and evaluated the incidence rate, described the epidemiology of pediatric primary intussusception aged ≤24 months. Read More

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http://dx.doi.org/10.1016/j.vaccine.2019.01.060DOI Listing
February 2019

Heat Stress in Indoor Environments of Scandinavian Urban Areas: A Literature Review.

Int J Environ Res Public Health 2019 Feb 15;16(4). Epub 2019 Feb 15.

Ergonomics and Aerosol Technology, Department of Design Sciences, Lund University, 221 00 Lund, Sweden.

Climate change increases the risks of heat stress, especially in urban areas where urban heat islands can develop. This literature review aims to describe how severe heat can occur and be identified in urban indoor environments, and what actions can be taken on the local scale. There is a connection between the outdoor and the indoor climate in buildings without air conditioning, but the pathways leading to the development of severe heat levels indoors are complex. Read More

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http://dx.doi.org/10.3390/ijerph16040560DOI Listing
February 2019

Household Fuel Use for Heating and Cooking and Respiratory Health in a Low-Income, South African Coastal Community.

Int J Environ Res Public Health 2019 Feb 14;16(4). Epub 2019 Feb 14.

Department of Geography, Geoinformatics and Meteorology, University of Pretoria, Pretoria 0002, South Africa.

In low-income communities, non-electric fuel sources are typically the main cause of Household Air Pollution (HAP). In Umlazi, a South African coastal, informal settlement, households use electric- and non-electric (coal, wood, gas, paraffin) energy sources for cooking and heating. The study aimed to determine whether respiratory ill health status varied by fuel type use. Read More

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http://dx.doi.org/10.3390/ijerph16040550DOI Listing
February 2019

Oxidation Protective Hybrid Coating for Thermoelectric Materials.

Materials (Basel) 2019 Feb 14;12(4). Epub 2019 Feb 14.

Department of Applied Science and Technology, Politecnico di Torino, 10129 Turin, Italy.

Two commercial hybrid coatings, cured at temperatures lower than 300 °C, were successfully used to protect magnesium silicide stannide and zinc-doped tetrahedrite thermoelectrics. The oxidation rate of magnesium silicide at 500 °C in air was substantially reduced after 120 h with the application of the solvent-based coating and a slight increase in power factor was observed. The water-based coating was effective in preventing an increase in electrical resistivity for a coated tethtraedrite, preserving its power factor after 48 h at 350 °C. Read More

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http://dx.doi.org/10.3390/ma12040573DOI Listing
February 2019

The Photodynamic Properties and the Genotoxicity of Heat-Treated Silicalite-1 Films.

Materials (Basel) 2019 Feb 14;12(4). Epub 2019 Feb 14.

Power Engineering Department, University of Chemistry and Technology, Technická 3, 166 28 Prague 6, Czech Republic.

We investigated the use of a supported silicalite-1 film () as a promising coating for metallic materials used in the fabrication of prostheses. The role of carbonaceous residua present on high-temperature calcined- in generating singlet oxygen for future use as a sterilization method has also been addressed, and the potential genotoxicity of these residua in osteoblast-like cells has been investigated. Calcination of as-synthesized induced the appearance of a rather complicated mixture of aliphatic and aromatic species on its outer surface. Read More

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http://dx.doi.org/10.3390/ma12040567DOI Listing
February 2019

Optical Oxygen Sensing with Artificial Intelligence.

Sensors (Basel) 2019 Feb 14;19(4). Epub 2019 Feb 14.

TOELT LLC, Birchlenstr. 25, 8600 Dübendorf, Switzerland.

Luminescence-based sensors for measuring oxygen concentration are widely used in both industry and research due to the practical advantages and sensitivity of this type of sensing. The measuring principle is the luminescence quenching by oxygen molecules, which results in a change of the luminescence decay time and intensity. In the classical approach, this change is related to an oxygen concentration using the Stern-Volmer equation. Read More

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http://dx.doi.org/10.3390/s19040777DOI Listing
February 2019

Rotational diffusion of partially wetted colloids at fluid interfaces.

J Colloid Interface Sci 2019 Feb 6;542:363-369. Epub 2019 Feb 6.

Laboratoire Charles Coulomb (L2C), University of Montpellier, CNRS, Montpellier, France.

Hypothesis: Rotational Brownian diffusions of colloidal particles at a fluid interface play important roles in particle self-assembly and in surface microrheology. Recent experiments on translational Brownian motion of spherical particles at the air-water interface show a significant slowing down of the translational diffusion with respect to the hydrodynamic predictions (Boniello et al., 2015). Read More

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http://dx.doi.org/10.1016/j.jcis.2019.02.017DOI Listing
February 2019

Iatrogenic embolization following cardiac intervention: postmortem analysis of 110 cases.

Cardiovasc Pathol 2019 Jan 19;40:12-18. Epub 2019 Jan 19.

University of British Columbia, Pathology & Laboratory Medicine, Vancouver, BC, Canada; Vancouver General Hospital, Neuropathology, Vancouver, BC, Canada; St. Paul's Hospital, Pathology & Laboratory Medicine, Vancouver, BC, Canada. Electronic address:

Introduction: Iatrogenic embolization following cardiac investigative procedures may result from hydrophilic polymer emboli (HPE) from catheter valve and vessel wall calcifications, and air embolism from open heart surgery. This retrospective clinical pathologic analysis was undertaken to ascertain the frequency and extent of these potentially fatal complications.

Methods: This retrospective clinical pathologic autopsy analysis with premortem diagnostic imaging correlation identified 110 individuals who had undergone endovascular procedures between 2010 and 2016 within 90 days of death and followed by hospital autopsy. Read More

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http://dx.doi.org/10.1016/j.carpath.2019.01.003DOI Listing
January 2019

Hydro air abrasion on dental glass-ceramics: A direct 3D analysis by stylus profilometry.

J Mech Behav Biomed Mater 2019 Feb 4;93:36-42. Epub 2019 Feb 4.

DISC Department, Genoa Dental School, Genoa University, Italy.

Air abrasion is used in dentistry for cavity opening, post-endodontic cavity cleaning, and removal of hard deposits or stains. Different applications may require different settings. We aimed to gain better understanding of the effect of some operating parameters on the efficiency of air abrasion on a model dental material. Read More

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http://dx.doi.org/10.1016/j.jmbbm.2019.02.005DOI Listing
February 2019

Effect of microplastics on the toxicity of chlorpyrifos to the microalgae Isochrysis galbana, clone t-ISO.

Ecotoxicol Environ Saf 2019 Feb 12;173:103-109. Epub 2019 Feb 12.

Spanish Institute of Oceanography, IEO, Oceanographic Center of Murcia, Varadero 1, E-30740 San Pedro del Pinatar, Murcia, Spain. Electronic address:

It is highly likely that phytoplanktonic organisms will interact with MPs in the ocean, and consequently with the pollutants sorbed onto their surfaces. Microalgae play an essential role in maintaining the balance of the marine ecosystem due to the fact that they are a primary producer and the base of marine trophic chains. Therefore, their fitness represents an important index in the assessment of water quality. Read More

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http://dx.doi.org/10.1016/j.ecoenv.2019.02.020DOI Listing
February 2019

Health-risk perception and its mediating effect on protective behavioral adaptation to heat waves.

Environ Res 2019 Jan 4;172:27-33. Epub 2019 Jan 4.

National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China. Electronic address:

Ensuring spontaneously adjusting behaviors of the public in their daily life in response to heat waves is an important aspect of successful public health intervention under climate change. However, the current response behavior guidance released by the government is insufficient because of the limited understanding of public perceptions of heat-related risk and the motivating factors for the public's diverse adaptive behaviors. Here, we conducted a survey on the behavioral adaptations of 3065 urban residents in response to heat waves in Jinan, which is a typical city suffering from a hot climate. Read More

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http://dx.doi.org/10.1016/j.envres.2019.01.006DOI Listing
January 2019

Geospatial analyses of adverse birth outcomes in Southwestern Ontario: Examining the impact of environmental factors.

Environ Res 2018 Dec 31;172:18-26. Epub 2018 Dec 31.

Department of Paediatrics, Western University, 800 Commissioners Road East, London, Ontario, Canada, N6A 5W9; Department of Epidemiology and Biostatistics, Western University, 1151 Richmond Street, London, Ontario, Canada, N6A 5C1; Children's Health Research Institute, 800 Commissioners Road East, London, Ontario, Canada, N6C 2V5; Lawson Health Research Institute, 750 Base Line Road East, London, Ontario, Canada, N6C 2R5; Human Environments Analysis Laboratory, Western University, 1151 Richmond Street, London, Ontario, Canada, N6A 3K7; Department of Geography, Western University, 1151 Richmond Street, London, Ontario, Canada, N6A 5C2; School of Health Studies, Western University, 1151 Richmond Street, London, Ontario, Canada, N6A 3K7. Electronic address:

Background: A growing body of research has examined the association between exposure to environmental factors during pregnancy and adverse birth outcomes; however, many studies do not control for potential covariates and findings vary considerably.

Objective: To test the relative influence of environmental factors including exposure to air pollution, major roads, highways, industry, parks, greenspaces, and food retailers on low birth weight (LBW) and preterm birth (PTB) in Southwestern Ontario (SWO), Canada, while accounting for medical (e.g. Read More

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http://dx.doi.org/10.1016/j.envres.2018.12.068DOI Listing
December 2018

Regulating particle number measurements from the tailpipe of light-duty vehicles: The next step?

Environ Res 2019 Feb 7;172:1-9. Epub 2019 Feb 7.

European Commission, Joint Research Centre, 21027 Ispra, VA, Italy.

Light-duty vehicle emission regulation in the European Union requires the dilution of the whole exhaust in a dilution tunnel with constant volume sampling prior to emission measurements. This methodology avoids measurement uncertainties associated with direct raw exhaust emission measurements from the tailpipe, such as exhaust flow determination, exhaust flow pressure pulsations, differences in the response time between exhaust flow and instrument signals, or their misalignment. Transfer tubes connecting the tailpipe to the dilution tunnel of different lengths, and mixing of the exhaust gas with the dilution air in the dilution tunnel may increase differences in measurements performed at different facilities. Read More

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http://dx.doi.org/10.1016/j.envres.2019.02.006DOI Listing
February 2019

Evolved Biofilm: Review on the Experimental Evolution Studies of Bacillus subtilis Pellicles.

J Mol Biol 2019 Feb 12. Epub 2019 Feb 12.

Bacterial Interactions and Evolution Group, Department of Biotechnology and Biomedicine, Technical University of Denmark, 2800 Kongens Lyngby, Denmark. Electronic address:

For several decades, laboratory evolution has served as a powerful method to manipulate microorganisms and to explore long-term dynamics in microbial populations. Next to canonical Escherichia coli planktonic cultures, experimental evolution has expanded into alternative cultivation methods and species, opening the doors to new research questions. Bacillus subtilis, the spore-forming and root-colonizing bacterium, can easily develop in the laboratory as a liquid-air interface colonizing pellicle biofilm. Read More

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http://dx.doi.org/10.1016/j.jmb.2019.02.005DOI Listing
February 2019
4.333 Impact Factor

A Rare Presentation of Stafne Bone Cyst.

Authors:
N Burcu Bayrak

J Stomatol Oral Maxillofac Surg 2019 Feb 12. Epub 2019 Feb 12.

Department of Oral and Maxillofacial Surgery at Baskent University, Konya Practice and Research Hospital, Turkey. Electronic address:

Stafne bone cysts (SBC) are defined as pseudocysts of the jaw in the literature. These lesions are typically localized at lingual cortical surface of the mandible and generally included normal salivary gland tissue; but they do not contain an epithelial lining. They may contain fat, muscle, connective tissue, lymphatic tissue, nerve bundles, blood vessels or air. Read More

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http://dx.doi.org/10.1016/j.jormas.2019.02.006DOI Listing
February 2019

Development and characterization of novel clinical grade neonatal porcine bone marrow-derived mesenchymal stem cells.

Xenotransplantation 2019 Feb 15:e12501. Epub 2019 Feb 15.

Research and Development Center, Otsuka Pharmaceutical Factory, Inc., Naruto, Japan.

Due to recent advances in research on mesenchymal stem cells (MSCs), MSCs are expected to be used in various clinical applications. However, securing adequate cadaveric donors and safety of living donors are major issues. To solve such issues, we have examined to develop clinical grade neonatal porcine bone marrow-derived MSCs (npBM-MSCs). Read More

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http://dx.doi.org/10.1111/xen.12501DOI Listing
February 2019