keyword
MENU ▼
Read by QxMD icon Read
search

CR

keyword
https://www.readbyqxmd.com/read/30342403/removing-cr-vi-in-water-via-visible-light-photocatalytic-reduction-over-cr-doped-srtio-3-nanoplates
#1
Dong Yang, Xuyang Zhao, Xiaoyan Zou, Zhiyuan Zhou, Zhongyi Jiang
It is crucial to develop a high-efficiency visible-light responsive photocatalyst for settling the increasing contamination stemmed from toxic heavy metal ions in wastewater. In this study, Cr-doped SrTiO3 (CrSTO) nanoplates were synthesized by a facile one-pot solvothermal method with ethylene glycol as both the solvent and morphology controller. The resultant CrSTO nanoplates are about 100 nm in size and 20 nm in thickness, which are composed of SrTiO3 nanocrystals about 19 nm in diameter. Furthermore, they possess the mesopore 3...
October 15, 2018: Chemosphere
https://www.readbyqxmd.com/read/30342402/chemical-and-mineral-composition-of-fly-ashes-from-home-furnaces-and-health-and-environmental-risk-related-to-their-presence-in-the-environment
#2
Alicja Kicińska
The study presents the results of an analysis of fly ashes produced from burning of solid fuels mixed with municipal waste and assesses the environmental and health risk associated with infiltration of the selected metals to the environment. The phase composition suggests that the material is extremely mixed and diverse. Low-temperature components were mixed with substances formed in high temperatures. The variable composition of waste from different home furnaces with high content of the amorphous phase (which dissolves in water more easily than its crystalline equivalents) may be harmful to the environment and for the people...
October 15, 2018: Chemosphere
https://www.readbyqxmd.com/read/30342292/novel-method-for-characterization-of-aqueous-vanadium-species-a-perspective-for-the-transition-metal-chemical-speciation-studies
#3
Jiawei Wen, Pengge Ning, Hongbin Cao, He Zhao, Zhi Sun, Yi Zhang
Identification the polymerization nature of vanadium bearing solution is difficult, yet it is of great environmental concern due to the possible carcinogenic effects as well as high-value sustainable necessities. Thus, seeking for simple and efficient characterization methods of tracking vanadium species is in urgent demand. In this work, high-resolution electrospray ionization time-of-flight mass spectrometry (ESI-TOF-MS) coupled with thermodynamic calculations was employed to measure vanadium-containing samples...
September 29, 2018: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/30342064/neuronal-glutamatergic-changes-and-peripheral-markers-of-cytoskeleton-dynamics-change-synchronically-24h-after-sub-anaesthetic-dose-of-ketamine-in-healthy-subjects
#4
Lejla Colic, Conor McDonnell, Meng Li, Marie Woelfer, Thomas Liebe, Moritz Kretzschmar, Oliver Speck, Björn H Schott, Massimiliano Bianchi, Martin Walter
Ketamine acts as a rapid-acting antidepressant by restoring glutamatergic deficits and activating synaptic plasticity processes, with peak activity 24 h after infusion. Microtubule dynamics are known to play a key role in modulation of cytoskeleton and synaptic plasticity, as well as in signalling events in peripheral blood cells. Here, we correlated ketamine-induced change in glutamate/creatinine (Glu/Cr) levels in the pregenual anterior cingulate cortex (pgACC) with peripheral markers of microtubule dynamics, namely acetylated α-tubulin (Acet-Tub), with particular attention to gender specificity...
October 17, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/30341865/diabetes-hypertension-and-kidney-disease-combination-dhkd-syndrome-is-common-in-india
#5
Suresh Chandra Dash, Sanjay Kumar Agarwal, Ansuman Panigrahi, Jayanti Mishra, Debadutta Dash
Objectives: The study was designed to find out frequency of (i) Diabetes mellitus (DM) as a cause Chronic Kidney Disease (CKD), (ii) Association between diabetic-CKD (diabetic patients who subsequently developed CKD as complication), hypertension (HT) and obesity. Further assessment was made to (iii) Identify percentage of diabetics attending medical and nephrology OPD had prior testing for proteinuria and or creatinine. Methods: After ethical consideration this prospective observational study was conducted on consecutive 6175 patients who gave consent to participate in two major referral hospitals one in Delhi and other in Bhubaneswar (BBSR)...
March 2018: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/30341353/photocatalytic-degradation-of-toxic-aquatic-pollutants-by-novel-magnetic-3d-tio-2-hpga-nanocomposite
#6
Chella Santhosh, A Malathi, Ehsan Daneshvar, Pratap Kollu, Amit Bhatnagar
In this study, a series of photocatalysts were prepared, namely bare 3D-TiO2 (b-3D-T), magnetic 3D-TiO2 : (m3D-T) and magnetic 3D-TiO2 @Hierarchical Porous Graphene Aerogels (HPGA) nanocomposite: (m3D-T-HPGA NC) by solvothermal process. The prepared photocatalysts were analyzed by using X-ray diffraction (XRD), Field emission scanning electron microscope (FE-SEM), transmission electron microscope (TEM), Vibrating sample magnetometer (VSM), Brunauer-Emmett-Teller (BET) and Diffuse Reflectance Measurement - Ultraviolet (DRS-UV) to know their physical and chemical properties...
October 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/30341299/tregitope-linked-refined-allergen-vaccines-for-immunotherapy-in-cockroach-allergy
#7
Pannathee Prangtaworn, Urai Chaisri, Watee Seesuay, Kodchakorn Mahasongkram, Nattawat Onlamoon, Onrapak Reamtong, Anchalee Tungtrongchitr, Nitaya Indrawattana, Wanpen Chaicumpa, Nitat Sookrung
Allergen-specific immunotherapy (AIT) facilitates long-term resolution of allergic morbidity resulting in reduced drug use and increased refractoriness to new sensitization. AIT effectiveness has been demonstrated in seasonal and perennial allergies, and insect stings. However, data and studies in AIT relative to cockroach (CR) allergy are relatively scarce. In this study, mice allergic to American CR (Periplaneta americana) were treated with a liposome (L)-entrapped vaccine made of mouse Tregitope289-Per a 9 of the CR, Tregitope167-Per a 9, or Per a 9 alone - or placebo...
October 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/30340871/phase-ii-study-of-s-1-combined-with-low-dose-docetaxel-as-neoadjuvant-chemotherapy-for-operable-breast-cancer-patients-n-1-study
#8
Misako Nakagawa, Mayumi Ikeuchi, Masami Morimoto, Hirokazu Takechi, Hiroaki Toba, Takahiro Yoshida, Kazumasa Okumura, Naoki Hino, Aya Nishisho, Akira Tangoku
BACKGROUND: To improve the pathological complete response (pCR) rate, we devised new neoadjuvant chemotherapy. Efficacy and safety of the oral fluoropyrimidine derivative S-1 (Taiho Pharmaceutical Co, Tokyo, Japan) combined with low-dose docetaxel (S-1+DOC) were evaluated. PATIENTS AND METHODS: Patients were treated with docetaxel (40 mg/m2 intravenously on day 1) and S-1 (40 mg/m2 orally twice per day on days 1-14) every 3 weeks for 4 cycles. In accord with the Response Evaluation Criteria In Solid Tumors version 1...
September 27, 2018: Clinical Breast Cancer
https://www.readbyqxmd.com/read/30340763/mechanistic-study-on-the-high-selectivity-enantioseparation-of-amino-acids-using-a-chiral-crown-ether-bonded-stationary-phase-and-acidic-highly-organic-mobile-phase-by-liquid-chromatography-time-of-flight-mass-spectrometry
#9
Yutaka Konya, Moyu Taniguchi, Masahiro Furuno, Yosuke Nakano, Nobuo Tanaka, Eiichiro Fukusaki
The separation mechanism of amino acid enantiomers using a chiral crown ether-bonded stationary phase, CROWNPAK CR-I(+), and acetonitrile (ACN)-rich mobile phases (MPs) was studied. The retention factors of proteinogenic l-amino acids (except proline) formed U-shaped plots against the ACN content in the MP with a sharp increase at a high ACN content, while d-amino acids showed much smaller increases or monotonous decreases in retention within the same range. The use of an acidic, highly organic MP with trifluoroacetic acid (TFA) provided a high enantioselectivity with a short separation time from the contribution of the increased binding of the ammonium group of the analytes to the crown ether functionality of the stationary phase and electrostatic repulsion counteracting the hydrophilic partition mechanism...
October 9, 2018: Journal of Chromatography. A
https://www.readbyqxmd.com/read/30340677/variations-in-concentrations-and-bioavailability-of-heavy-metals-in-rivers-caused-by-water-conservancy-projects-insights-from-water-regulation-of-the-xiaolangdi-reservoir-in-the-yellow-river
#10
Jianwei Dong, Xinghui Xia, Zhining Zhang, Zixuan Liu, Xiaotian Zhang, Husheng Li
Water regulation of the Xiaolangdi Reservoir of the Yellow River was chosen as a case to investigate variations in concentrations and bioavailability of heavy metals caused by water conservancy projects in rivers. Water and suspended sediment (SPS) samples were collected at downstream sampling sites along the river during this period. Concentrations and speciation of Zn, Cr, Cu, Ni, and Pb in water and SPS samples were analyzed, and their bioaccumulation was studied with Daphnia magna. This study indicated that the exchangeable and carbonate-bound fractions of heavy metals in SPS decreased along the studied stretch, and the dissolved heavy metal concentrations increased along the river with 1...
December 2018: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/30340452/hexavalent-chromium
#11
Jennylynn Balmer
Hexavalent chromium [Cr(VI)] is a chemical used in many industries and has the potential to cause negative health effects. Occupational health nurses can intervene to protect workers from the health hazards associated with Cr(VI).
November 2018: Workplace Health & Safety
https://www.readbyqxmd.com/read/30340431/magnetic-moments-and-electron-transport-through-chromium-based-antiferromagnetic-nanojunctions
#12
Marco Bragato, Simona Achilli, Fausto Cargnoni, Davide Ceresoli, Rocco Martinazzo, Raffaella Soave, Mario Italo Trioni
We report the electronic, magnetic and transport properties of a prototypical antiferromagnetic (AFM) spintronic device. We chose Cr as the active layer because it is the only room-temperature AFM elemental metal. We sandwiched Cr between two non-magnetic metals (Pt or Au) with large spin-orbit coupling. We also inserted a buffer layer of insulating MgO to mimic the structure and finite resistivity of a real device. We found that, while spin-orbit has a negligible effect on the current flowing through the device, the MgO layer plays a crucial role...
October 18, 2018: Materials
https://www.readbyqxmd.com/read/30340357/pollution-level-and-health-risk-assessment-of-pm-2-5-bound-metals-in-baoding-city-before-and-after-the-heating-period
#13
Yixuan Liu, Shanshan Li, Chunyuan Sun, Mengxi Qi, Xue Yu, Wenji Zhao, Xiaoxiu Li
In order to assess the pollution levels and health risks of PM2.5 -bound metals in Baoding City before and after the heating period, samples were collected in 2016 at Hebei University from September 25th to November 14th during the non-heating period, and November 15th to December 26th during the heating period, respectively. ICP-MS was applied to analyze seven heavy metals (Cr, Zn, Cu, Pb, Ni, Cd and Fe). The statistical analysis, enrichment factor (EF), pollution load index method, and Risk Assessment Method proposed by U...
October 18, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/30340299/enrichment-of-trace-elements-in-colonies-of-the-yellow-legged-gull-larus-michahellis-in-the-atlantic-islands-national-park-galicia-nw-spain
#14
S De La Peña-Lastra, A Pérez-Alberti, X L Otero
Marine-derived nutrients are known accumulate in seabird breeding colonies due to the deposition of nutrient-rich biological materials, thus greatly altering the functioning and dynamics of these terrestrial ecosystems. Here we present the results of a sampling survey carried out during three years in yellow-legged gull colonies in the Atlantic Islands of Galicia National Park (NW Spain) with the aim of evaluating the influence of the colonies on the accumulation of trace elements, including micronutrients (Cu, Zn, Se, Co, Mo, Ni) and toxic elements (Cr, Cd, Hg, Pb, As, Ag), in the surrounding environments...
January 15, 2019: Science of the Total Environment
https://www.readbyqxmd.com/read/30340255/potentially-toxic-elements-in-water-sediments-and-fish-of-the-evrotas-river-under-variable-water-discharges
#15
Radmila Milačič, Tea Zuliani, Janja Vidmar, Matic Bergant, Eleni Kalogianni, Evangelia Smeti, Nikolaos Skoulikidis, Janez Ščančar
Among different stressors like drought, hydro-morphological alterations, and pollution from agricultural activities, nutrients, organic compounds and discharges from wastewater treatment plants (WWTPs), potentially toxic elements (PTE) may also contribute to the overall pollution of the Evrotas River, Greece. Nevertheless, information on pollution of elements in water and sediments in this river is scarcely documented. There is also no information available on the impact of elemental pollution from the aquatic environmental compartments on biota...
January 15, 2019: Science of the Total Environment
https://www.readbyqxmd.com/read/30340050/sirt1-knock-in-mice-preserve-ovarian-reserve-resembling-caloric-restriction
#16
Guan-Yun Long, Jie-Ying Yang, Jin-Jie Xu, Yan-Hong Ni, Xiao-Ling Zhou, Jia-Yi Ma, Yu-Cai Fu, Li-Li Luo
Previous studies have proposed that caloric restriction (CR) regulates many cell functions and prolongs the lifespan of an organism. Our previous studies proposed that CR also prevents follicular activation and preserves the ovarian reserve in mice by activating SIRT1. To test if SIRT1 preserves the ovarian reserve and prolongs the ovarian longevity, we generated SIRT1 knock-in mice that can overexpress SIRT1 in oocytes of the mouse. Ovaries of the mice at ages 35 days and 15 months were collected, and the follicular development and follicular reserve were examined...
October 16, 2018: Gene
https://www.readbyqxmd.com/read/30339934/-99-tc-immobilization-from-off-gas-waste-streams-using-nickel-doped-iron-spinel
#17
Guohui Wang, Wooyong Um, Dong-Sang Kim, Albert A Kruger
Technetium-99 (99 Tc) incorporation within stable spinel phases is a novel method for 99 Tc removal and immobilization from waste streams. In this study, transformation of Ni-doped Fe(OH)2 (s) to spinel minerals, e.g. trevorite (NiFe2 O4 ), is explored as a method for removing 99 Tc from Hanford Waste Treatment and Immobilization Plant (WTP) primary off-gas waste stream simulant. The Fe(OH)2 (s) transformation process was found to reduce 99 Tc(VII) to 99 Tc(IV) and incorporate reduced Tc(VI) into the produced spinel simultaneously...
October 6, 2018: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/30339249/arsenic-induced-cardiotoxicity-correlates-with-mitochondrial-damage-and-trace-elements-imbalance-in-broiler-chickens
#18
Siwen Li, Hongjing Zhao, Yu Wang, Yizhi Shao, Juanjuan Liu, Mingwei Xing
Arsenic-based drugs as food additive were used in poultry. However, excessive arsenic exposure can disturb myocardial cell metabolism, which results in the inhibition of growth and development of chickens. Since disordered mitochondria influences cardiac physiology and pathology, a better understanding of the mechanisms modulating cardiomyocyte mitochondria process is critical for identifying the potent detoxication targets under arsenic exposure in chickens. Male Hy-line chickens (1-day-old) were fed either a basal diet or an arsenic trioxide (As2O3)-supplemented diet containing 7...
October 18, 2018: Poultry Science
https://www.readbyqxmd.com/read/30338405/trace-elements-critical-insights-from-15-years-of-monitoring-in-the-venice-lagoon-catchment-basin-italy
#19
Grazia Soccio, Roberto Lava, Marco Ostoich, Francesca Zanon, Maurizio Marchiori, Nadia Rado, Emiliano Coraluppi, Antonio Marcomini
The study focused on selected trace elements (As, Cd, Cr, Hg, Ni, Pb) monitored in surface waters of the Venice Lagoon catchment basin (North East Italy) over the period 2000-2015. The monitoring was undertaken to verify the achievement of the quality objectives set by the European and national legislations. The available results have been analyzed to evaluate the chemical status of water bodies. The limit of quantification (LOQ) of the applied analytic techniques appears critical for the adequate water monitoring; for some parameters, the percentage of not visible values due to non-satisfactory LOQ was higher in the beginning of the period; the subsequent improvement of LOQ allowed assessing the respect of environmental quality standards (EQSs)...
October 18, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30338334/cages-on-a-plane-a-structural-matrix-for-molecular-sheets
#20
Hector W L Fraser, Gary S Nichol, Amgalanbaatar Baldansuren, Eric J L McInnes, Euan K Brechin
A family of heterometallic Anderson-type 'wheels' of general formula [MIII2MII5(hmp)12]4+ (MIII = Cr or Al and MII = Ni or Zn, Hhmp = 2-pyridinemethanol) has been extended to include MIII = Cr or Al and MII = Co, Fe, Mn or Cu, affording five new species of formulae [Cr2Co5(hmp)12](ClO4)4 (1), [Cr2Fe5(hmp)12](ClO4)4 (2), [Cr2Mn5(hmp)12](ClO4)4 (3), [Cr2Cu5(hmp)12](ClO4)2(NO3)2 (4) and [Al2Co5(hmp)12](ClO4)4 (5). As per previous family members, the metallic skeleton common to the cations of 1-5 describes a centred hexagon with the two MIII sites disordered around the outer wheel, with the exception of compound 4 where the CuII sites are localised...
October 19, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
keyword
keyword
159435
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"