keyword
MENU ▼
Read by QxMD icon Read
search

ROCK

keyword
https://www.readbyqxmd.com/read/28535594/industrial-pm2-5-cause-pulmonary-adverse-effect-through-rhoa-rock-pathway
#1
Junyan Yan, Chia-Hsiang Lai, Shih-Chun Candice Lung, Chongjun Chen, Wen-Cheng Wang, Pin-I Huang, Chia-Hua Lin
According to the Chinese Ministry of Health, industrial pollution-induced health impacts have been the leading cause of death in China. While industrial fine particulate matter (PM2.5) is associated with adverse health effects, the major action mechanisms of different compositions of PM2.5 are currently unclear. In this study, we treated normal human lung epithelial BEAS-2B cells with industrial organic and water-soluble PM2.5 extracts under daily alveolar deposition dose to elucidate the molecular mechanisms underlying adverse pulmonary effects induced by PM2...
May 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28535461/raman-spectroscopic-study-of-cyclohexane-at-pressures-below-1000mpa
#2
Erwei Qiao, Haifei Zheng
At present, the room temperature freezing pressure of cyclohexane is still uncertain, and the phase transition pressure of solid I - solid III is not reliable at ambient temperature. In this work, we have performed a Raman spectroscopic study of cyclohexane in a Moissanite anvil cell at pressures below 1000MPa at 25°C, and analyzed the characteristic of Raman brands νs(CH2), νas(CH2) and νb(Ring). Two phase transition pressures 80MPa and 550MPa were determined by a quartz pressure gauge, and they are the room temperature freezing pressure of cyclohexane and the phase transition pressure of solid I to solid III, respectively...
May 16, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28535444/passive-detection-of-pb-in-water-using-rock-phosphate-agarose-beads
#3
Harry M Edenborn, Bret H Howard, James I Sams, Dorothy J Vesper, Sherie L Edenborn
In this study, passive detectors for Pb were prepared by immobilizing powdered rock phosphate in agarose beads. Rock phosphate has been used to treat Pb-contaminated waters and soil by fixing the metal as an insoluble pyromorphite mineral. Under lab conditions, Pb was rapidly adsorbed from aqueous solution by the beads over time, consistent with the acidic dissolution of rock phosphate, the precipitation of pyromorphite within the pore space of the agarose gel matrix, and surface exchange reactions. Net accumulation of Pb occurred when beads were exposed to simulated periodic releases of Pb over time...
April 15, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28534935/effect-of-fasudil-on-cognitive-function-following-status-convulsion-in-rats
#4
Rong He, Wei Han, Xiaojie Song, Xiaoju Tang, Li Cheng, Li Jiang
Fasudil has been demonstrated to possess a protective effect in neural injury; however, its protective effect on convulsive brain injury remains to be assessed. The aim of the present study was to investigate the latent mechanism and effect of fasudil on cognitive function following status convulsion (SC) in rats. Initially, to determine the effects of SC, the expression levels of Ras homolog gene family, member A (RhoA)/Rho‑associated protein kinase (ROCK) signaling pathway‑associated proteins were measured by western blot analysis in 16 rats...
May 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534112/decolorization-of-textile-dye-rb19-using-volcanic-rock-matrix-immobilized-bacillus-thuringiensis-cells-with-surface-displayed-laccase
#5
Juan Wan, Xiaowen Sun, Cheng Liu, Mengjun Tang, Lin Li, Hong Ni
A triplicate volcanic rock matrix-Bacillus thuringiensis-laccase WlacD (VRMs-Bt-WlacD) dye decolorization system was developed. WlacD was displayed on the B. thuringiensis MB174 cell surface to prepare a whole-cell laccase biocatalyst by using two repeat N-terminal domains of autolysin Mbg (Mbgn)2 as the anchoring motif. Immunofluorescence microscopic assays confirmed that the fusion protein (Mbgn)2-WlacD was anchored on the surface of the recombinant B. thuringiensis MB174. After optimization by a single factor test, L 9(3(4))-orthogonal test, Plackett-Burman test, steepest ascent method, and Box-Behnken response surface methodology, the whole-cell specific laccase activity of B...
June 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28533405/spatial-evolutionary-games-with-weak-selection
#6
Mridu Nanda, Richard Durrett
Recently, a rigorous mathematical theory has been developed for spatial games with weak selection, i.e., when the payoff differences between strategies are small. The key to the analysis is that when space and time are suitably rescaled, the spatial model converges to the solution of a partial differential equation (PDE). This approach can be used to analyze all [Formula: see text] games, but there are a number of [Formula: see text] games for which the behavior of the limiting PDE is not known. In this paper, we give rules for determining the behavior of a large class of [Formula: see text] games and check their validity using simulation...
May 22, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28532279/the-effect-of-cold-ambient-temperatures-on-climbing-specific-finger-flexor-performance
#7
Kevin Phillips, Byungjoo Noh, Matthew Gage, Tejin Yoon
Different ambient temperatures are known to affect muscular performance based on the type of contraction. The effect of cold (10°C) and thermoneutral (TN) (24°C) ambient temperatures on finger flexor performance was examined in 12 rock climbers. After 30 min of seated rest in the designated temperature condition, participants completed maximal voluntary contractions (MVC) on a climbing-specific finger flexor assessment device equipped with a crimp grip hold. Participants then completed an intermittent fatiguing task until failure...
May 22, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28531796/spatially-explicit-modeling-of-multi-scale-drivers-of-aboveground-forest-biomass-and-water-yield-in-watersheds-of-the-southeastern-united-states
#8
Mukhtar Ahmed Ajaz Ahmed, Amr Abd-Elrahman, Francisco J Escobedo, Wendell P Cropper, Timothy A Martin, Nilesh Timilsina
Understanding ecosystem processes and the influence of regional scale drivers can provide useful information for managing forest ecosystems. Examining more local scale drivers of forest biomass and water yield can also provide insights for identifying and better understanding the effects of climate change and management on forests. We used diverse multi-scale datasets, functional models and Geographically Weighted Regression (GWR) to model ecosystem processes at the watershed scale and to interpret the influence of ecological drivers across the Southeastern United States (SE US)...
May 19, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28531660/carbon-black-aggregates-cause-endothelial-dysfunction-by-activating-rock
#9
Junyan Yan, Chia-Hsiang Lai, Shih-Chun Candice Lung, Wen-Cheng Wang, Chih-Ching Huang, Guan-Wen Chen, Guangli Suo, Cheng-Tai Choug, Chia-Hua Lin
Carbon black nanoparticles (CBNs) have been associated with the progression of atherosclerosis. CBNs normally enter the bloodstream and crosslink together to form agglomerates. However, most studies have used nano-sized CB particles to clarify the involvement of CBN exposure in CBN-induced endothelial dysfunction. Herein, we studied endothelial toxicity of CBN aggregates (CBA) to human EA.hy926 vascular cells. Cell viability, lactate dehydrogenase leakage, and oxidative stress were affected by the highest concentration of CBA...
May 15, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28529496/treatment-of-the-mal-de-debarquement-syndrome-a-1-year-follow-up
#10
Mingjia Dai, Bernard Cohen, Catherine Cho, Susan Shin, Sergei B Yakushin
The mal de debarquement syndrome (MdDS) is a movement disorder, occurring predominantly in women, is most often induced by passive transport on water or in the air (classic MdDS), or can occur spontaneously. MdDS likely originates in the vestibular system and is unfamiliar to many physicians. The first successful treatment was devised by Dai et al. (1), and over 330 MdDS patients have now been treated. Here, we report the outcomes of 141 patients (122 females and 19 males) treated 1 year or more ago. We examine the patient's rocking frequency, body drifting, and nystagmus...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28528483/fossil-record-of-ephedra-in-the-lower-cretaceous-aptian-argentina
#11
Gabriela G Puebla, Ari Iglesias, María A Gómez, Mercedes B Prámparo
Fossil plants from the Lower Cretaceous (upper Aptian) of the La Cantera Formation, Argentina, are described. The fossils studied represent a leafy shooting system with several orders of articulated and striated axes and attached leaves with unequivocal ephedroid affinity. We also found associated remains of ovulate cones with four whorls of sterile bracts, which contain two female reproductive units (FRU). Ovulate cone characters fit well within the genus Ephedra. Special characters in the ovulate cones including an outer seed envelope with two types of trichomes, allowed us to consider our remains as a new Ephedra species...
May 20, 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/28528411/imposex-in-reishia-clavigera-as-an-indicator-to-assess-recovery-of-tbt-pollution-after-a-total-ban-in-south-korea
#12
Nam Sook Kim, Sang Hee Hong, Kyung-Hoon Shin, Won Joon Shim
The temporal changes in the frequency and degree of imposex and tributyltin (TBT) levels in gastropod (Reishia clavigera) were evaluated in Jinhae Bay, 5 and 10 years after the total ban on TBT usage in South Korea. The frequency and degree of imposex decreased significantly after the ban, accompanied by an increase in the female-to-male ratio. The TBT concentrations in R. clavigera also decreased significantly after the ban. There were good correlations between the TBT concentration in rock shell and both the degree of imposex and the female-to-male ratio...
May 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28527193/comparison-of-digital-intraoral-scanners-by-single-image-capture-system-and-full-color-movie-system
#13
Meguru Yamamoto, Yu Kataoka, Atsufumi Manabe
BACKGROUND: The use of dental computer-aided design/computer-aided manufacturing (CAD/CAM) restoration is rapidly increasing. OBJECTIVE: This study was performed to evaluate the marginal and internal cement thickness and the adhesive gap of internal cavities comprising CAD/CAM materials using two digital impression acquisition methods and micro-computed tomography. METHODS: Images obtained by a single-image acquisition system (Bluecam Ver...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28526844/identification-of-extracellular-glycerophosphodiesterases-in-pseudomonas-and-their-role-in-soil-organic-phosphorus-remineralisation
#14
Ian D E A Lidbury, Andrew R J Murphy, Tandra D Fraser, Gary D Bending, Alexandra M E Jones, Jonathan D Moore, Andrew Goodall, Mark Tibbett, John P Hammond, David J Scanlan, Elizabeth M H Wellington
In soils, phosphorus (P) exists in numerous organic and inorganic forms. However, plants can only acquire inorganic orthophosphate (Pi), meaning global crop production is frequently limited by P availability. To overcome this problem, rock phosphate fertilisers are heavily applied, often with negative environmental and socio-economic consequences. The organic P fraction of soil contains phospholipids that are rapidly degraded resulting in the release of bioavailable Pi. However, the mechanisms behind this process remain unknown...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28526517/regulation-of-rhoa-rock-and-sustained-arterial-contraction-by-low-cytosolic-ca-2-levels-during-prolonged-depolarization-of-arterial-smooth-muscle
#15
Cristina Porras-González, Antonio Ordóñez, Antonio Castellano, Juan Ureña
The role of L-type Ca(2+) channels (LTCCs) and RhoA/Rho kinase (ROCK) on depolarization-induced sustained arterial contraction lasting several minutes is already known. However, in vivo, vascular smooth muscle cells can be depolarized for longer periods, inducing substantial inactivation of LTCCs and markedly reducing Ca(2+) influx into the myocytes. We have examined, in femoral arterial rings, the role of LTCCs and RhoA/ROCK during long-lasting depolarization. Our results reveal a new vasoreactive response after 20-30min of depolarization in 2...
May 16, 2017: Vascular Pharmacology
https://www.readbyqxmd.com/read/28525719/phosphorus-availability-and-release-pattern-from-activated-dolomite-phosphate-rock-in-central-florida
#16
Xiaoyun Mao, Qin Lu, Wei Mo, Xiaoping Xin, Xian Chen, Zhenli He
In this study, novel technology was developed to convert dolomite phosphate rock (DPR) into slow release P fertilizers. The DPR was powdered to < 100 mesh and activated with organic molecules under optimal reaction conditions. As compared to original DPR, available P, estimated by water soluble P released from the three DPRs activated with three types of organic molecules, increased by 6.86, 3.32, and 7.46 times, respectively. Phosphorus supply from the activated DPRs was greater than that of superphosphates (SP)...
May 19, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28524745/actin-cytoskeleton-regulates-functional-anchorage-migration-switch-during-t-cadherin-induced-phenotype-modulation-of-vascular-smooth-muscle-cells
#17
Agne Frismantiene, Emmanouil Kyriakakis, Boris Dasen, Paul Erne, Therese J Resink, Maria Philippova
Vascular smooth muscle cell (SMC) switching between differentiated and dedifferentiated phenotypes is reversible and accompanied by morphological and functional alterations that require reconfiguration of cell-cell and cell-matrix adhesion networks. Studies attempting to explore changes in overall composition of the adhesion nexus during SMC phenotype transition are lacking. We have previously demonstrated that T-cadherin knockdown enforces SMC differentiation, whereas T-cadherin upregulation promotes SMC dedifferentiation...
May 19, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28520989/technique-for-primary-and-redo-surgery-for-peroneal-intraneural-ganglion-cysts
#18
Thomas J Wilson, Michael G Rock, Robert J Spinner
No abstract text is available yet for this article.
May 17, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28518184/a-method-for-minimizing-rotational-errors-of-implant-prostheses
#19
Hyeonjong Lee, Kung-Rock Kwon, Janghyun Paek, Ahran Pae, Kwantae Noh
PURPOSE: Rotational errors of implants can occur during two stages: when connecting impression copings with implants, and when connecting impression copings with analogs. The aim of this study was to determine ways to minimize these rotational errors. MATERIALS AND METHODS: Three types of implants were prepared: a tissue-level implant with an internal octagon 8-degree Morse taper connection, a bone-level implant with an internal hex 11-degree Morse taper connection, and a bone-level implant with an external hex connection...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28517954/on-the-rocks-microbiological-quality-and-microbial-diversity-of-packaged-ice-in-southern-california
#20
Kun Ho Lee, Liana S Ab Samad, Phillip M Lwin, Stefan F Riedel, Ashley Magin, Mina Bashir, Parag A Vaishampayan, Wei-Jen Lin
Ice is defined as a food and is frequently used in direct contact with food and beverages. Packaged ice is commercially produced and can be easily found in grocery and convenience stores. However, the quality and safety of packaged ice products is not consistent. The Packaged Ice Quality Control Standards manual (PIQCS) published by the International Packaged Ice Association provides the quality and processing standards for packaged ice produced by its members. Packaged ice produced on the premise of stores (on-site packaged ice) is not required to be in compliance with these standards...
May 18, 2017: Journal of Food Protection
keyword
keyword
26611
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"