keyword
MENU ▼
Read by QxMD icon Read
search

Dust

keyword
https://www.readbyqxmd.com/read/29140765/quantitative-weight-of-evidence-assessment-of-higher-tier-studies-on-the-toxicity-and-risks-of-neonicotinoids-in-honeybees-2-imidacloprid
#1
Gladys L Stephenson, Keith R Solomon
A quantitative weight of evidence (QWoE) methodology was used to assess higher-tier studies on the effects of imidacloprid (IMI) on honeybees. Assessment endpoints were population size and viability of commercially managed bees and quantity of hive products. A colony-level no-observed-adverse effect concentration (NOAEC) of 25 µg IMI/kg syrup, equivalent to an oral no-observed-adverse-effect-dose of 7.3 ng/bee/d for all responses, was measured. The overall weight of evidence indicates that there is minimal risk to honeybees from exposure to IMI from its use as a seed treatment...
November 15, 2017: Journal of Toxicology and Environmental Health. Part B, Critical Reviews
https://www.readbyqxmd.com/read/29140643/assessment-of-interventions-to-improve-air-quality-in-a-livestock-building
#2
T Renée Anthony, Anthony Y Yang, Thomas M Peters
This study examined the effectiveness of engineering controls to reduce contaminant concentrations in a swine farrowing room during winter in the U.S. Midwest. Over two winters, changes in air quality were evaluated following installation of a 1700 m3 h-1 (1000 cfm) recirculating ventilation system to provide 5.4 air exchanges per hour. This system incorporated one of two readily available dust control systems, one based on filtration and the other on cyclonic treatment. A second treatment evaluated reductions in carbon dioxide (CO2) associated with replacement of standard, unvented gas-fired heaters with new vented heaters, installed between the two winter test periods...
November 20, 2017: Journal of Agricultural Safety and Health
https://www.readbyqxmd.com/read/29140634/combustibility-determination-for-cotton-gin-dust-and-almond-huller-dust
#3
Sidney E Hughs, Phillip J Wakelyn
It has been documented that some dusts generated while processing agricultural products, such as grain and sugar, can constitute combustible dust hazards. After a catastrophic dust explosion in a sugar refinery in 2008, the Occupational Safety and Health Administration (OSHA) initiated action to develop a mandatory standard to comprehensively address the fire and explosion hazards of combustible dusts. Cotton fiber and related materials from cotton ginning, in loose form, can support smoldering combustion if ignited by an outside source...
April 26, 2017: Journal of Agricultural Safety and Health
https://www.readbyqxmd.com/read/29139499/the-role-of-phase-separation-and-related-topography-in-the-exceptional-ice-nucleating-ability-of-alkali-feldspars
#4
Thomas F Whale, Mark A Holden, Alexander N Kulak, Yi-Yeoun Kim, Fiona C Meldrum, Hugo K Christenson, Benjamin J Murray
Our understanding of crystal nucleation is a limiting factor in many fields, not least in the atmospheric sciences. It was recently found that feldspar, a component of airborne desert dust, plays a dominant role in triggering ice formation in clouds, but the origin of this effect was unclear. By investigating the structure/property relationships of a wide range of feldspars, we demonstrate that alkali feldspars with certain microtextures, related to phase separation into Na and K-rich regions, show exceptional ice-nucleating abilities in supercooled water...
November 15, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29139075/investigation-of-the-effects-of-slow-release-fertilizer-and-struvite-in-biodegradation-in-filter-drains-and-potential-application-of-treated-water-in-irrigation-of-road-verges
#5
Stephen C Theophilus, Fredrick U Mbanaso, Ernest O Nnadi, Kingsley T Onyedeke
Filter drains are usually laid along the margins of highways. Highway runoffs are polluted with hydrocarbons and high levels of total dissolved solids. Therefore, effective pollution removal mechanism is necessary in order to avoid contamination of surrounding soils and groundwater. Biodegradation is amongst pollution removal mechanisms in filter drains, but it is a relatively slow process which is dependent on wide range of factors including the type of pollutant and availability of nutrients. This paper reports on a study conducted to investigate the impact of slow-release fertilizer and struvite in enhancement of biodegradation of hydrocarbon in filter drains...
November 14, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29136597/lead-in-egyptian-soils-origin-reactivity-and-bioavailability-measured-by-stable-isotope-dilution
#6
W H Shetaya, E R Marzouk, E F Mohamed, M Elkassas, E H Bailey, S D Young
The current availability of Pb in Egyptian soils and associated plants were studied in 15 locations (n=159) that had been historically subjected to industrial and automobile Pb emissions. Isotopic dilution with enriched (204)Pb was used to estimate the soil Pb labile pool (PbE); results showed that %PbE values were mostly <25% which is likely due to the alkaline nature of the soils. Nonetheless, lability of Pb was significantly higher in urban and industrial locations indicating greater reactivity of anthropogenic Pb in comparison to geogenic-Pb...
November 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29136347/pro-inflammatory-mediator-responses-from-neonatal-airway-epithelial-cells-and-early-childhood-wheeze
#7
Steve Turner, David Miller, Garry M Walsh, Alison Scaife, Ultan F Power, Michael D Shields, Graham Devereux
BACKGROUND: Airway epithelial cell (AEC) function differs between children with and without asthma. Here, we associated neonatal AEC function with asthma symptoms at 4 years of age. METHODS: Nasal AEC were collected from neonates within 48 h of birth. Cells were cultured and stimulated with tumor necrosis factor alpha/interleukin-1 beta (TNFα/IL-1β), lipopolysaccharide (LPS), or house dust mite (HDM). Absolute concentrations of pro-inflammatory mediators in the culture supernatant were quantified and expressed as median [interquartile range] in pg/mg protein...
November 14, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29136129/comparison-of-respirable-mass-concentrations-measured-by-a-personal-dust-monitor-and-a-personal-dataram-to-gravimetric-measurements
#8
Andrew Halterman, Sinan Sousan, Thomas M Peters
In 2016, the Mine Safety and Health Administration required the use of continuous monitors to measure respirable dust in mines and better protect miner health. The Personal Dust Monitor, PDM3700, has met stringent performance criteria for this purpose. In a laboratory study, respirable mass concentrations measured with the PDM3700 and a photometer (personal DataRam, pDR-1500) were compared to those measured gravimetrically for five aerosols of varying refractive index and density (diesel exhaust fume, welding fume, coal dust, Arizona road dust (ARD), and salt [NaCl] aerosol) at target concentrations of 0...
November 9, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/29135514/prevalence-and-clinical-characteristics-of-local-allergic-rhinitis-to-house-dust-mites
#9
Yoo Seob Shin, Chang-Gyu Jung, Hae-Sim Park
PURPOSE OF REVIEW: Local allergic rhinitis (LAR) is a recently classified subtype of rhinitis defined by a nasal allergic response in patients without systemic evidence of atopy. Recent studies have reported the prevalence, clinical course, culprit allergens, diagnostic methods and treatment outcomes of LAR. The purpose of this review is to summarize the most relevant and updated scientific evidence for LAR, especially focusing on its prevalence and clinical characteristics. RECENT FINDINGS: LAR is found in a significant proportion (3...
November 14, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29135418/dusting-utilizing-suction-technique-dust-for-percutaneous-nephrolithotomy-use-of-a-dedicated-laser-handpiece-to-treat-a-staghorn-stone
#10
Khurshid R Ghani, Ali H Aldoukhi, William W Roberts
No abstract text is available yet for this article.
November 17, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29135200/overview-of-silica-related-clusters-in-the-united-states-will-fracking-operations-become-the-next-cluster
#11
M Thomas Quail
Silicosis is the oldest know occupational pulmonary disease. It is a progressive disease and any level of exposure to respirable crystalline silica particles or dust has the potential to develop into silicosis. Silicosis is caused by silica particles or dust entering the lungs and damaging healthy lung tissue. The damage restricts the ability to breathe. Exposure to silica increases a worker’s risk of developing cancer or tuberculosis. This special report will provide background history of silicosis in the U...
January 2017: Journal of Environmental Health
https://www.readbyqxmd.com/read/29134522/capacity-of-six-shrub-species-to-retain-atmospheric-particulates-with-different-diameters
#12
Xiaodan Sun, Haimei Li, Xiao Guo, Yingkun Sun, Shimei Li
Garden plants can absorb and retain atmospheric particles and are important for remediating environmental pollution. In this study, the dust retention characteristics of six typical shrub species were measured in the greenbelt of a road in the Chengyang District of Qingdao, China, and the maximum capacity for dust retention of each species was determined. The different diameters and areas occupied by particulate matter (PM) were analyzed on the leaf surfaces of the plants. Based on the results for the six shrub species, the rank order of average content of dust retention per unit leaf area was Euonymus japonicus > Pyracantha fortuneana > Ligustrum vicaryi > Amygdalus triloba > Ligustrum sinense > Forsythia suspensa, whereas the rank order of average content per unit volume was E...
November 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29134400/safe-sites-of-pollen-placement-a-conflict-of-interest-between-plants-and-bees
#13
Ze-Yu Tong, Shuang-Quan Huang
Plant stigmas and bee pollinators are competitors for pollen. Pollen placed on a pollinator's body can be picked up by conspecific stigmas or it can be collected by the pollinator as food. Hypothetically, one solution is for pollen to be placed on 'safe sites' on the pollinator's body, sites where the pollinator cannot easily remove it, leaving the pollen for stigmas. We compared 14 sites on the bumblebee body in terms of the ability of the bee to groom off fluorescent power, a dust that may be thought of as analogous to pollen...
November 13, 2017: Oecologia
https://www.readbyqxmd.com/read/29134193/snowball-earth-climate-dynamics-and-cryogenian-geology-geobiology
#14
Paul F Hoffman, Dorian S Abbot, Yosef Ashkenazy, Douglas I Benn, Jochen J Brocks, Phoebe A Cohen, Grant M Cox, Jessica R Creveling, Yannick Donnadieu, Douglas H Erwin, Ian J Fairchild, David Ferreira, Jason C Goodman, Galen P Halverson, Malte F Jansen, Guillaume Le Hir, Gordon D Love, Francis A Macdonald, Adam C Maloof, Camille A Partin, Gilles Ramstein, Brian E J Rose, Catherine V Rose, Peter M Sadler, Eli Tziperman, Aiko Voigt, Stephen G Warren
Geological evidence indicates that grounded ice sheets reached sea level at all latitudes during two long-lived Cryogenian (58 and ≥5 My) glaciations. Combined uranium-lead and rhenium-osmium dating suggests that the older (Sturtian) glacial onset and both terminations were globally synchronous. Geochemical data imply that CO2 was 10(2) PAL (present atmospheric level) at the younger termination, consistent with a global ice cover. Sturtian glaciation followed breakup of a tropical supercontinent, and its onset coincided with the equatorial emplacement of a large igneous province...
November 2017: Science Advances
https://www.readbyqxmd.com/read/29134133/monitoring-and-morphologic-classification-of-pediatric-cataract-using-slit-lamp-adapted-photography
#15
Erping Long, Zhuoling Lin, Jingjing Chen, Zhenzhen Liu, Qianzhong Cao, Haotian Lin, Weirong Chen, Yizhi Liu
Purpose: To investigate the feasibility of pediatric cataract monitoring and morphologic classification using slit lamp-adapted anterior segmental photography in a large cohort that included uncooperative children. Methods: Patients registered in the Childhood Cataract Program of the Chinese Ministry of Health were prospectively selected. Eligible patients underwent slit-lamp adapted anterior segmental photography to record and monitor the morphology of their cataractous lenses...
November 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/29133844/utilization-of-stainless-steel-furnace-dust-as-an-admixture-for-synthesis-of-cement-based-electromagnetic-interference-shielding-composites
#16
Yong Fan, Ling Zhang, Vladimir Volski, Guy A E Vandenbosch, Bart Blanpain, Muxing Guo
Electromagnetic interference (EMI) shielding receives attention due to the increasing abundance of electronics. The Cement based material can obtain EMI shielding properties through the use of appropriate "fillers" such as carbon, metal, and ferrite. As the most important by-product of stainless steelmaking operations, through the metal droplets and ferrite that it contains, stainless-steel dust can be considered as a potential filler for EMI shielding applications. We have therefore utilized stainless-steel dust as an admixture for the synthesis of cement-based EMI shielding composites and show that it raises the EMI shielding effectiveness...
November 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29132960/influenza-derived-peptides-cross-react-with-allergens-and-provide-asthma-protection
#17
Chrysanthi Skevaki, Christoph Hudemann, Mikhail Matrosovich, Christian Möbs, Sinu Paul, Andreas Wachtendorf, Bilal Alashkar Alhamwe, Daniel P Potaczek, Stefanie Hagner, Diethard Gemsa, Holger Garn, Alessandro Sette, Harald Renz
BACKGROUND: The hygiene hypothesis is the leading concept to explain the current asthma epidemic, which is built on the observation that a lack of bacterial contact early in life induces allergic Th2 immune responses. OBJECTIVE: Since little is known about the contribution of respiratory viruses in this context, we evaluated the effect of prior influenza-infection on the development of allergic asthma. METHODS: Mice were infected with influenza and once recovered, subjected to an ovalbumin or house dust mite-induced experimental asthma protocol...
November 10, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29132467/-distribution-characteristics-of-serum-specific-ige-for-inhaled-allergens-in-children-with-different-airway-allergic-diseases
#18
Kang Zhu, Xiao-Ling Hou, Hui-Jie Huang, Ya-Ru Wang, Yi-Xin Ren, Xin Ni, Li Xiang
OBJECTIVE: To investigate the distribution characteristics of serum specific IgE (sIgE) for inhaled allergens in children with different airway allergic diseases. METHODS: Fluorescent enzyme-linked immunosorbent assay on the UniCAP250 system was performed to measure serum sIgE for 9 common inhaled allergens in 256 children aged 3-14 years with different airway allergic diseases. According to the clinical diagnosis, these children were divided into rhinitis group (37 children with allergic rhinitis), asthma group (82 children with bronchial asthma), and rhinitis-asthma group (137 children with allergic rhinitis complicated by bronchial asthma)...
November 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29131267/interleukin-33-promotes-the-inflammatory-reaction-in-chronic-rhinosinusitis-with-nasal-polyps-by-nf-%C3%AE%C2%BAb-signaling-pathway
#19
L Zhang, L-L Jiang, Z-W Cao
OBJECTIVE: Interleukin (IL)-33 promotes T helper (Th2) immune response and may be involved in the pathogenesis of chronic rhinosinusitis with nasal polyps (CRSwNP). Using murine and human specimens, we evaluated the role of IL-33 in CRSwNP. MATERIALS AND METHODS: To establish CRSwNP, Balb/c mice were sensitized with house dust mite, followed up by intranasal exposure to Staphylococcus aureus to stimulate the inflammatory response of nasal mucosa. The hematoxylin-eosin staining and total serum IgE were used to the successful construction of CRSwNP model...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29130983/prevalence-and-clinical-characteristics-of-local-allergic-rhinitis-in-children-sensitized-to-house-dust-mites
#20
Eun Kyo Ha, Min Sun Na, Shinhae Lee, Heysung Baek, Seung Jin Lee, Youn Ho Sheen, Young-Ho Jung, Kyung Suk Lee, Mi Ae Kim, Hye Mi Jee, Man Yong Han
OBJECTIVE: The prevalence of local allergic rhinitis (LAR) in nonatopic children remains unknown. This study aimed to determine the prevalence, clinical characteristics, and severity of LAR in children in comparison to classical allergic rhinitis (AR) and nonallergic rhinitis (NAR). STUDY DESIGN: A total of 145 children (aged 1-18 years) were enrolled and classified into 3 groups (AR, NAR, and LAR) based on a skin prick test (SPT) and a nasal provocation test (NPT) with house dust mite, i...
November 10, 2017: International Archives of Allergy and Immunology
keyword
keyword
39329
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"