keyword
MENU ▼
Read by QxMD icon Read
search

distributed, massed

keyword
https://www.readbyqxmd.com/read/28641196/c1-c2-alkyl-aminiums-in-urban-aerosols-insights-from-ambient-and-fuel-combustion-emission-measurements-in-the-yangtze-river-delta-region-of-china
#1
Wenchao Shen, Lili Ren, Yi Zhao, Luyu Zhou, Liang Dai, Xinlei Ge, Shaofei Kong, Qin Yan, Honghui Xu, Yujun Jiang, Jun He, Mindong Chen, Huan Yu
We measured low molar-mass alkyl aminiums (methylaminium, dimethylaminium, ethylaminium and diethylaminium) in urban aerosols in the Yangtze River Delta region of eastern China in August 2014 and from November 2015 to May 2016. After examining artifact formation on sample filters, methylaminium, dimethylaminium and ethylaminium concentrations were quantified. The three C1-C2 aminiums exhibited a unimodal size distribution that maximized between 0.56 and 1.0 μm. Their concentrations in PM2.5 were 5.7 ± 3...
June 19, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28641043/radiogenomics-of-high-grade-serous-ovarian-cancer-multireader-multi-institutional-study-from-the-cancer-genome-atlas-ovarian-cancer-imaging-research-group
#2
Hebert Alberto Vargas, Erich P Huang, Yulia Lakhman, Joseph E Ippolito, Priya Bhosale, Vincent Mellnick, Atul B Shinagare, Maria Anello, Justin Kirby, Brenda Fevrier-Sullivan, John Freymann, C Carl Jaffe, Evis Sala
Purpose To evaluate interradiologist agreement on assessments of computed tomography (CT) imaging features of high-grade serous ovarian cancer (HGSOC), to assess their associations with time-to-disease progression (TTP) and HGSOC transcriptomic profiles (Classification of Ovarian Cancer [CLOVAR]), and to develop an imaging-based risk score system to predict TTP and CLOVAR profiles. Materials and Methods This study was a multireader, multi-institutional, institutional review board-approved, HIPAA-compliant retrospective analysis of 92 patients with HGSOC (median age, 61 years) with abdominopelvic CT before primary cytoreductive surgery available through the Cancer Imaging Archive...
June 22, 2017: Radiology
https://www.readbyqxmd.com/read/28637303/management-of-acute-unilateral-nondisplaced-subaxial-cervical-facet-fractures
#3
Aditya Vedantam, Jared Steven Fridley, Jovany Cruz Navarro, Shankar P Gopinath
BACKGROUND: Few studies have focused on the management of patients with nondisplaced cervical facet fractures. OBJECTIVE: To determine the rate of successful nonoperative management and risk factors for instability in patients with acute traumatic, unilateral, nondisplaced cervical facet fractures. METHODS: We reviewed patients with single or multilevel unilateral nondisplaced or minimally displaced subaxial cervical facet fractures between 2008 and 2014...
June 14, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28636152/dynamics-and-origin-of-cytokinins-involved-in-plant-manipulation-by-a-leaf-mining-insect
#4
Hui Zhang, Antoine Guiguet, Géraldine Dubreuil, Anna Kisiala, Peter Andreas, R J Neil Emery, Elisabeth Huguet, Mélanie Body, David Giron
Several herbivorous insects and plant-associated microorganisms control the phytohormonal balance, thus enabling them to successfully exploit the plant by inhibiting plant defences and withdrawing plant resources for their own benefit. The leaf-mining moth Phyllonorycter blancardella modifies the cytokinin (CK) profile of mined leaf-tissues, and the insect symbiotic bacteria Wolbachia is involved in the plant manipulation to the benefit of the insect host. To gain a deeper understanding into the possible origin and dynamics of CKs, we conducted an extensive characterization of CKs in larvae and in infected apple leaves...
June 21, 2017: Insect Science
https://www.readbyqxmd.com/read/28635565/prostate-cancer-stem-cells-from-theory-to-practice
#5
Jan Adamowicz, Katayoon Pakravan, Babak Bakhshinejad, Tomasz Drewa, Sadegh Babashah
None of the generally accepted theories on prostate cancer development can fully explain many distinguishing features of the disease, such as intratumoral heterogeneity, metastatic growth, drug resistance and tumor relapse. Prostate stem cells are a heterogeneous and small subpopulation of self-renewing cells which can actively proliferate in response to changes in the androgen level and give rise to all the cell lineages that build the prostate epithelium. According to the cancer stem cell hypothesis, prostate cancer could be a stem cell disease...
February 7, 2017: Scandinavian Journal of Urology
https://www.readbyqxmd.com/read/28635127/cardiovascular-risk-score-is-linked-to-subcutaneous-adipocyte-size-and-lipid-metabolism
#6
Mikael Rydén, Peter Arner
OBJECTIVE: Although white adipose tissue mass and distribution correlates with cardiovascular disease, the fat cell-specific perturbations underlying this association are not known. We determined the relationship between adipocyte size and lipid metabolism with cardiovascular risk. DESIGN/SUBJECTS: Adipocyte size as well as spontaneous (basal) and hormone-stimulated effects on adipocyte lipid metabolism (lipolysis and lipogenesis) were investigated in abdominal subcutaneous adipose tissue of 304 men and 775 women...
June 21, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28634228/spatial-mapping-and-profiling-of-metabolite-distributions-during-germination
#7
Adam D Feenstra, Liza E Alexander, Zhihong Song, Andrew R Korte, Marna Yandeau-Nelson, Basil J Nikolau, Young-Jin Lee
Germination is a highly complex process by which seeds begin to develop and establish themselves as viable organisms. In this paper, we utilize a combination of GC-MS, LC-fluorescence, and mass spectrometry imaging (MSI) approaches to profile and visualize the metabolic distributions of germinating seeds from two different inbreds of maize seeds, B73 and Mo17. GC and LC analyses demonstrate that the two inbreds are highly differentiated in their metabolite profiles throughout the course of germination, especially with regard to amino acids, sugar alcohols, and small organic acids...
June 20, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28634121/population-pharmacokinetics-of-tobramycin-inhalation-solution-in-pediatric-patients-with-cystic-fibrosis
#8
Xinting Wang, Stephan Koehne-Voss, SivaNaga S Anumolu, Jing Yu
Tobramycin inhalation solution (TOBI) given as a twice-daily inhalation of nebulized aerosols of 300 mg is approved for the treatment of Pseudomonas aeruginosa infection in cystic fibrosis (CF) patients over 6 years of age. To investigate tobramycin pharmacokinetics (PK) after inhalation of TOBI in pediatric CF patients below 7 years, a population PK approach was used to evaluate tobramycin PK data in patients 6 months to 44 years of age from four clinical studies. The final model used a two-compartmental, first-order absorption model with effect of body mass index on the apparent central volume of distribution...
June 17, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28633947/occurrence-and-spatial-distribution-of-organophosphorus-flame-retardants-and-plasticizers-in-the-bohai-and-yellow-seas-china
#9
Mingyu Zhong, Jianhui Tang, Lijie Mi, Fei Li, Runmei Wang, Guopei Huang, Huifeng Wu
Seawater samples from 50 sites in the BS and YS were collected to investigate the spatial distribution of 7 OPs. Concentrations of the total OPs (ƩOPs) in the BS and YS ranged from 8.12ngL(-1) to 98.04ngL(-1) with a geometric mean (GM) of 23.70ngL(-1). Tris(1-chloro-2-propyl) phosphate (TCPP) was the dominant compound, followed by tris(2-chloroethyl) phosphate (TCEP) and triphenylphosphine oxide (TPPO). The ƩOPs together with the most commonly detected individual OPs (TCPP, TCEP, tris(1,3-dichloro-2-propyl) phosphate (TDCPP), tri-iso-butyl phosphate (TiBP), triphenyl phosphate (TPhP), and TPPO) tended to decrease from nearshore to offshore and from the surface to the bottom seawaters, indicating major land-based sources...
June 17, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28633526/reduced-graphene-oxide-poly-acrylic-acid-aerogels-as-a-three-dimensional-replacement-for-metal-foil-current-collectors-in-lithium-ion-batteries
#10
Han Xiao, Joshua P Pender, Mackenzie Meece-Rayle, J Pedro de Souza, Kyle C Klavetter, Heonjoo Ha, Jie Lin, Adam Heller, Christopher J Ellison, Charles Buddie Mullins
We report the synthesis and properties of a low-density (~5 mg/cm3) and highly-porous (99.6% void space) three-dimensional reduced graphene oxide (rGO)/poly(acrylic acid) (PAA) nanocomposite aerogel as the scaffold for cathode materials in lithium-ion batteries (LIBs). The rGO-PAA is both simple and starts from readily-available graphite and PAA thereby providing a scalable fabrication procedure. The scaffold can support as much as a 75 mg/cm2 loading of LiFePO4 (LFP) in a ~ 430 µm thick layer, and the porosity of the aerogel is tunable by compression; the flexible aerogel can be compressed 30-fold (i...
June 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28632144/optimal-pitching-axis-location-of-flapping-wings-for-efficient-hovering-flight
#11
Qi Wang, J Goosen, Fred Van Keulen
Flapping wings can pitch passively about their pitching axes due to their flexibility, inertia, and aerodynamic loads. A shift in the pitching axis location can dynamically alter the aerodynamic loads, which in turn changes the passive pitching motion and the flight efficiency. Therefore, it is of great interest to investigate the optimal pitching axis for flapping wings to maximize the power efficiency during hovering flight. In this study, flapping wings are modeled as rigid plates with non-uniform mass distribution...
June 20, 2017: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/28632050/effects-of-turf-and-cleat-footwear-on-plantar-load-distributions-in-adolescent-american-football-players-during-resisted-pushing
#12
Jeffrey B Taylor, Anh-Dung Nguyen, Janet R Griffin, Kevin R Ford
Metatarsal and midfoot injuries are common in American football. Footwear design may influence injury rates by altering plantar foot loading patterns in these regions. The purpose of this study was to determine the effect of cleat design on in-shoe plantar foot loading during a football-specific, resisted pushing task. Twenty competitive football players (age 14.7 ± 1.8 years, height 1.72 ± 0.10 m, and mass 71.8 ± 26.9 kg) completed three trials of pushing a weighted sled at maximal effort in a standard shoe (CLEAT) and artificial turf-specific shoe (TURF), with flexible in-shoe force measuring insoles...
February 28, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28631625/high-loading-fe2o3-swnt-composite-films-for-lithium-ion-battery-applications
#13
Ying Wang, Jiahui Guo, Li Li, Yali Ge, Baojun Li, Yingjiu Zhang, Yuanyuan Shang, Anyuan Cao
Single-walled carbon nanotube (SWNT) films are a potential candidate as porous conductive electrodes for energy conversion and storage; tailoring the loading and distribution of active materials grafted on SWNTs is critical for achieving maximum performance. Here, we show that as-synthesized SWNT samples containing residual Fe catalyst can be directly converted to Fe2O3/SWNT composite films by thermal annealing in air. The mass loading of Fe2O3 nanoparticles is tunable from 63 wt.% up to 96 wt.%, depending on the annealing temperature (from 450 C to 600 C), while maintaining the porous network structure...
June 20, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28631318/bupropion-overdose-resulted-in-a-pharmacobezoar-in-a-fatal-bupropion-wellbutrin-%C3%A2-sustained-release-overdose-postmortem-distribution-of-bupropion-and-its-major-metabolites
#14
Gregory Schmit, Evy De Boosere, Jessica Vanhaebost, Arnaud Capron
Bupropion (BUP) overdose commonly causes generalized seizures and central nervous system depression. The case of a 28-year-old woman who died from a massive lethal overdose with sustained-release bupropion (Wellbutrin(®) 300 mg) is herein presented. The autopsy revealed the presence of a pharmacobezoar consisting of at least 40 tablets in the stomach. Determination of bupropion and its active metabolites (hydroxybupropion, threobupropion, erythrobupropion) was achieved by a liquid chromatographic mass spectrometry (LC-MS/MS) method...
June 20, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28631114/derivatization-of-dextran-for-multiply-charged-ion-formation-and-electrospray-ionization-time-of-flight-mass-spectrometric-analysis
#15
Jesus B Tapia, Hailey A J Hibbard, Melissa M Reynolds
We present the use of a simple, one-pot derivatization to allow the polysaccharide dextran to carry multiple positive charges, shifting its molecular weight distribution to a lower m/z range. We performed this derivatization because molecular weight measurements of polysaccharides by mass spectrometry are challenging because of their lack of readily ionizable groups. The absence of ionizable groups limits proton abstraction and suppresses proton adduction during the ionization process, producing mass spectra with predominantly singly charged metal adduct ions, thereby limiting the detection of large polysaccharides...
June 19, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28630601/international-society-of-sports-nutrition-position-stand-diets-and-body-composition
#16
REVIEW
Alan A Aragon, Brad J Schoenfeld, Robert Wildman, Susan Kleiner, Trisha VanDusseldorp, Lem Taylor, Conrad P Earnest, Paul J Arciero, Colin Wilborn, Douglas S Kalman, Jeffrey R Stout, Darryn S Willoughby, Bill Campbell, Shawn M Arent, Laurent Bannock, Abbie E Smith-Ryan, Jose Antonio
Position Statement: The International Society of Sports Nutrition (ISSN) bases the following position stand on a critical analysis of the literature regarding the effects of diet types (macronutrient composition; eating styles) and their influence on body composition. The ISSN has concluded the following. 1) There is a multitude of diet types and eating styles, whereby numerous subtypes fall under each major dietary archetype. 2) All body composition assessment methods have strengths and limitations. 3) Diets primarily focused on fat loss are driven by a sustained caloric deficit...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28629605/ct-findings-in-11-patients-with-tafro-syndrome-a-variant-of-multicentric-castleman-s-disease
#17
T Kiguchi, C Sato, K Takai, Y Nakai, Y Kaneko, M Matsuki
AIM: To assess detailed computed tomography (CT) findings in patients with the recently described thrombocytopenia, anasarca, fever, reticulin fibrosis, and organomegaly (TAFRO) syndrome, in order to contribute to imaging interpretation in the challenging diagnosis of this disease. MATERIALS AND METHODS: The institutional review board approved this retrospective study and waived the need for informed consent. Eleven patients (six men, five women; mean age, 52.5 years) with confirmed TAFRO syndrome were included in this study...
June 16, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28628822/spatial-distribution-of-trace-element-ca-normalized-ratios-in-primary-and-permanent-human-tooth-enamel
#18
Théo Tacail, Lenka Kovačiková, Jaroslav Brůžek, Vincent Balter
The trace elements distribution embedded in tooth enamel offers a means to study exposure of toxic metals and allows the reconstruction of dietary behaviors. The quantification of most of the elements with a spatial high resolution (~50μm) is routinely achieved using laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS). However, the lack of a comprehensive framework of trace elements distribution in enamel jeopardizes any endorsed sampling strategy using LA-ICPMS. The present work is an effort to improve our knowledge on this issue...
June 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28627457/analysis-of-the-origins-of-content-non-uniformity-in-high-shear-wet-granulation
#19
Sarang Oka, David Smrčka, Anjali Kataria, Heather Emady, Fernando Muzzio, František Štěpánek, Rohit Ramachandran
In this study, the origins of granule content non-uniformity in the high-shear wet granulation of a model two-component pharmaceutical blend were investigated. Using acetaminophen as the active pharmaceutical ingredient (API) and microcrystalline cellulose as the excipient, the distribution of the API across the granule size classes was measured for a range of conditions that differed in the duration of the initial dry mixing stage, the overall composition of the blend and the wet massing time. The coarse granule fractions were found to be systematically sub-potent, while the fines were enriched in the API...
June 13, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28627335/effects-of-exposure-pathways-on-the-accumulation-and-phytotoxicity-of-silver-nanoparticles-in-soybean-and-rice
#20
Cheng-Cheng Li, Fei Dang, Min Li, Min Zhu, Huan Zhong, Holger Hintelmann, Dong-Mei Zhou
The widespread use of silver nanoparticles (AgNPs) raises concerns both about their accumulation in crops and human exposure via crop consumption. Plants take up AgNPs through their leaves and roots, but foliar uptake has been largely ignored. To better understand AgNPs-plant interactions, we compared the uptake, phytotoxicity, and size distribution of AgNPs in soybean and rice following root versus foliar exposure. At similar AgNP application levels, foliar exposure led to 17-200 times more Ag bioaccumulation than root exposure...
June 19, 2017: Nanotoxicology
keyword
keyword
106015
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"