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https://www.readbyqxmd.com/read/28076313/ethnopharmacological-investigation-of-the-aerial-part-of-phragmites-karka-poaceae
#1
Ramiz Ahmed Sultan, Mohammad Shah Hafez Kabir, Mir Muhammad Nasir Uddin, Mohi Uddin, Zobaer Al Mahmud, Sheikh Zahir Raihan, Nazmul Qais
BACKGROUND: In this ethnopharmacological study, methanolic extract of the aerial plant parts of Phragmites karka (Family: Poaceae) and its petroleum ether and carbon tetrachloride fractions were investigated for bioactivities in Swiss-albino mice, namely, analgesic, central nervous system (CNS) depressant, hypoglycemic, and antidiarrheal activity. METHODS: The cold methanolic extract of the aerial plant parts of Phragmites karka (MEPK) was first prepared, and it was then further fractionated as petroleum ether (PEFMEPK) and carbon tetrachloride (CTFMEPK) fractions...
January 11, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/28034863/huang-me-ye-yc-chen-sr-et-al-use-of-all-trans-retinoic-acid-in-the-treatment-of-acute-promyelocytic-leukemia-blood-1988-72-2-567-572
#2
(no author information available yet)
No abstract text is available yet for this article.
December 29, 2016: Blood
https://www.readbyqxmd.com/read/27986845/unique-photosynthetic-phenotypes-in-portulaca-portulacaceae-c3-c4-intermediates-and-nad-me-c4-species-with-pilosoid-type-kranz-anatomy
#3
Elena V Voznesenskaya, Nuria K Koteyeva, Gerald E Edwards, Gilberto Ocampo
Portulacaceae is a family that has considerable diversity in photosynthetic phenotypes. It is one of 19 families of terrestrial plants where species having C4 photosynthesis have been found. Most species in Portulaca are in the alternate-leaved (AL) lineage, which includes one clade (Cryptopetala) with taxa lacking C4 photosynthesis and three clades having C4 species (Oleracea, Umbraticola and Pilosa). All three species in the Cryptopetala clade lack Kranz anatomy, the leaves have C3-like carbon isotope composition and they have low levels of C4 cycle enzymes...
December 16, 2016: Journal of Experimental Botany
https://www.readbyqxmd.com/read/27986635/electrophysiological-correlates-of-motion-extrapolation-an-investigation-on-the-cnv
#4
Luca Battaglini, Clara Casco, Bethany Rose Isaacs, David Bridges, Giorgio Ganis
Motion extrapolation (ME), the ability to estimate the current position of moving objects hidden by an occluder, is critical to interact with a dynamic environment. In a typical paradigm, participants estimate time to contact (TTC) by pressing a button when they estimate the occluded moving target reaches a certain cue. Research using this paradigm has shown that motion adaptation of the occluded area produces a shift in the TTC estimate (Gilden et al., 1995). We examined the effect of motion adaptation on the contingent negative variation (CNV), a frontal electrophysiological component (Tecce, 1972) that could reflect the activity of an accumulator (Buhusi and Meck, 2005) for time processing...
December 13, 2016: Neuropsychologia
https://www.readbyqxmd.com/read/27966728/structure-investigations-of-group-13-organometallic-carboxylates
#5
Iwona Justyniak, Daniel Prochowicz, Adam Tulewicz, Wojciech Bury, Piotr Goś, Janusz Lewiński
The octet-compliant group 13 organometallics with highly polarized bonds in the metal coordination sphere exhibit a significant tendency to maximize their coordination number through the formation of adducts with a wide range of neutral donor ligands or by self-association to give aggregates containing tetrahedral and higher coordinated aluminium centres, and even in some cases molecular complexes equilibrate with ionic species of different coordination numbers of the metal centre. This work provides a comprehensive overview of the structural chemistry landscape of the group 13 carboxylates...
December 14, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/27960045/tell-me-how-do-you-define-person-centredness
#6
EDITORIAL
Jan Dewing, Brendan McCormack
The International Community of Practice for Person-centred Practice (PCP-ICoP) coordinated from Queen Margaret University Edinburgh recently wrote about the current state of person-centredness across several countries in the world (McCormack et al 2015). In that publication we highlighted a number of concerns, the existence of which are working against the advancement of person-centredness as a coherent theoretically informed and practice embedded framework for nursing. We believe that a focus on person-centredness provides an opportunity for nursing to rise above particular theoretical 'fan clubs' and work within a coherent set of principles that are multivariate, context non-specific and trans-specialist...
December 13, 2016: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/27957691/speciation-and-precipitation-of-heavy-metals-in-high-metal-and-high-acid-mine-waters-from-the-iberian-pyrite-belt-portugal
#7
Nuno Durães, Iuliu Bobos, Eduardo Ferreira da Silva
Acid mine waters (AMW) collected during high- and low-flow water conditions from the Lousal, Aljustrel, and São Domingos mining areas (Iberian Pyrite Belt) were physicochemically analyzed. Speciation calculation using PHREEQC code confirms the predominance of Me(n+) and Me-SO4 species in AMW samples. Higher concentration of sulfate species (Me-SO4) than free ion species (Me(n+), i.e., Al, Fe, and Pb) were found, whereas opposite behavior is verified for Mg, Cu, and Zn. A high mobility of Zn than Cu and Pb was identified...
December 12, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27927281/iron-fe-0-rich-substrate-based-on-iron-carbon-micro-electrolysis-for-phosphorus-adsorption-in-aqueous-solutions
#8
Shihai Deng, Desheng Li, Xue Yang, Wei Xing, Jinlong Li, Qi Zhang
The phosphorus (P) adsorption properties of an iron [Fe(0)]-rich substrate (IRS) composed of iron scraps and activated carbon were investigated based on iron-carbon micro-electrolysis (IC-ME) and compared to the substrates commonly used in constructed wetlands (CWs) to provide an initial characterization of the [Fe(0)]-rich substrate. The results showed that P was precipitated by Fe(III) dissolved from the galvanic cell reactions in the IRS and the reaction was suppressed by the pH and stopped when the pH exceeded 8...
February 2017: Chemosphere
https://www.readbyqxmd.com/read/27908496/mixed-mode-acrylamide-based-continuous-beds-bearing-tert-butyl-groups-for-capillary-electrochromatography-synthesized-via-complexation-of-n-tert-butylacrylamide-with-a-water-soluble-cyclodextrin-part-i-retention-properties
#9
Ayat Allah Al-Massaedh, Ute Pyell
With the aim to improve the understanding of morphology and efficiency properties, we investigate in this series the impact of the complex formation constant of the hydrophobic monomer with respect to statistically methylated-β-cyclodextrin (Me-β-CD) on the electrochromatographic properties of highly crosslinked amphiphilic mixed-mode acrylamide-based monolithic stationary phases. Based on our previous work on amphiphilic mixed-mode monolithic stationary phases for capillary electrochromatography (CEC) using N-(1-adamantyl)acrylamide (Ad-AAm) as hydrophobic monomer that forms an extremely strong water-soluble inclusion complex with Me-β-CD, we now selected N-tert-butylacrylamide (NTBA) as hydrophobic monomer forming an inclusion complex with Me-β-CD with a much lower value of the formation constant...
December 16, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/27882369/regio-and-stereo-selective-polymerization-of-1-3-butadiene-catalyzed-by-phosphorus-nitrogen-pn-3-pincer-cobalt-ii-complexes
#10
Dirong Gong, Xuequan Zhang, Kuo-Wei Huang
A new family of cobalt complexes (CoCl2-H, CoCl2-Me, CoCl2-iPr, CoBr2-H, CoBr2-Me, CoBr2-iPr, CoI2-H, CoI2-Me, and CoI2-iPr) supported by a PN(3) ligand (6-(N,N'-di-t-butylphosphino)-2-pyrazol-yl-aminopyridine) have been prepared and fully characterized by FT-IR, elemental analysis, and X-ray analysis. The X-ray analysis reveals a trigonal bipyramidal conformation in the solid state for all representative complexes, CoCl2-H, CoBr2-H, CoBr2-iPr and CoI2-Me. The cobalt center is chelated by the PN(3) ligand through the pyridinyl nitrogen, the pyrazol nitrogen and the phosphorus donor, with a long Co-P bond distance indicating a labile character...
December 6, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/27792841/reactions-of-trimethylaluminium-modelling-the-chemical-degradation-of-synthetic-lubricants
#11
Jonathan Slaughter, Andrew J Peel, Andrew E H Wheatley
In investigating and seeking to mimic the reactivity of trimethylaluminium (TMA) with synthetic, ester-based lubricating oils, the reaction of methyl propionate 1 was explored with 1, 2 and 3 equivalents of the organoaluminium reagent. Spectroscopic analysis points to the formation of the adduct 1(TMA) accompanied only by the low level 1:1 production of Me2 AlOCEtMe2 2 and Me2 AlOMe 3 when an equimolar amount of TMA is applied. The deployment of excess TMA favours reaction to give 2 and 3 over 1(TMA) adduct formation and spectroscopy reveals that in hydrocarbon solution substitution product 2 traps unreacted TMA to yield 2(TMA)...
January 1, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27786290/mechanisms-on-the-morphology-variation-of-hematite-crystals-by-al-substitution-the-modification-of-fe-and-o-reticular-densities
#12
Wei Li, Xiaoliang Liang, Pengfei An, Xionghan Feng, Wenfeng Tan, Guohong Qiu, Hui Yin, Fan Liu
Al substitution in hematite is ubiquitous in soils. With the increase of Al amount, the hematite morphology changes from rhombohedral crystals to disk-shaped ones, but the underlying mechanism is poorly understood. Herein, a series of Al-substituted hematite were synthesized and characterized by synchrotron X-ray diffraction (SXRD), field emission scanning electron microscopy (FESEM), high resolution electron transmission microscopy (HRTEM) and extended X-ray absorption fine structure (EXAFS) spectroscopy, to investigate the effects of Al(3+) substitution on the hematite structure and morphology...
October 27, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27772565/validity-of-the-center-for-epidemiological-studies-depression-scale-in-type-2-diabetes
#13
Jasmine Carter, Hugo Cogo-Moreira, Nathan Herrmann, Daniel Merino, Pearl Yang, Baiju R Shah, Alex Kiss, Jaan Reitav, Paul I Oh, Walter Swardfager
OBJECTIVE: Depressive symptoms are common among people with Type 2 diabetes mellitus (T2DM). This study aimed to validate the 3-factor structure of the 14-item Center for Epidemiological Studies Depression (CES-D) scale proposed by Carleton et al. (2013) in a T2DM population. METHODS: The CES-D was administered to consecutive patients with T2DM entering a rehabilitation program. Construct validity was assessed using confirmatory factor analysis. Subscale viability, differential item functioning, and associations with clinical characteristics were tested in bifactor models...
November 2016: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/27763715/insight-into-oxide-bridged-heterobimetallic-al-zr-olefin-polymerization-catalysts
#14
Cédric Boulho, Harmen S Zijlstra, Alexander Hofmann, Peter H M Budzelaar, Sjoerd Harder
Reaction of (TBBP)AlMe⋅THF with [Cp*2 Zr(Me)OH] gave [(TBBP)Al(THF)-O-Zr(Me)Cp*2 ] (TBBP=3,3',5,5'-tetra-tBu-2,2'-biphenolato). Reaction of [DIPPnacnacAl(Me)-O-Zr(Me)Cp2 ] with [PhMe2 NH](+) [B(C6 F5 )4 ](-) gave a cationic Al/Zr complex that could be structurally characterized as its THF adduct [(DIPPnacnac)Al(Me)-O-Zr(THF)Cp2 ](+) [B(C6 F5 )4 ](-) (DIPPnacnac=HC[(Me)C=N(2,6-iPr2 -C6 H3 )]2 ). The first complex polymerizes ethene in the presence of an alkylaluminum scavenger but in the absence of methylalumoxane (MAO)...
November 21, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27753860/me-01-2-assessment-and-treatment-of-morning-hypertension-update
#15
Kazuomi Kario
The essential benefit of the management of hypertension is derived from the blood pressure (BP) lowering per se, indicating the importance of BP throughout 24 hours. Recent guidelines stressed the importance of home BP for the diagnosis and management of hypertension. It is well-known that cardiovascular events occur more frequently in the morning BP levels have been shown to increase during the period from night to early morning. Clinical research using ambulatory BP monitoring (ABPM) or home BP monitoring has clarified that morning BP and BP surge are more closely related to the cardiovascular risk than office BP (Kario et al...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27683083/relaxation-and-contraction-rates-underestimated-parameters-of-vascular-contractility
#16
EDITORIAL
R Schubert
No abstract text is available yet for this article.
January 2017: Acta Physiologica
https://www.readbyqxmd.com/read/27643097/me-01-2-assessment-and-treatment-of-morning-hypertension-update
#17
Kazuomi Kario
The essential benefit of the management of hypertension is derived from the blood pressure (BP) lowering per se, indicating the importance of BP throughout 24 hours. Recent guidelines stressed the importance of home BP for the diagnosis and management of hypertension. It is well-known that cardiovascular events occur more frequently in the morning BP levels have been shown to increase during the period from night to early morning. Clinical research using ambulatory BP monitoring (ABPM) or home BP monitoring has clarified that morning BP and BP surge are more closely related to the cardiovascular risk than office BP (Kario et al...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27630061/from-ion-like-ethylzinc-aluminates-to-etzn-arene-2-al-or-f-4-salts
#18
Thies Olaf Petersen, Dustin Simone, Ingo Krossing
Attempts to prepare previously unknown simple and very Lewis acidic [RZn](+) [Al(OR(F) )4 ](-) salts from ZnR2 , AlR3 , and HO-R(F) delivered the ion-like RZn(Al(OR(F) )4 ) (R=Me, Et; R(F) =C(CF3 )3 ) with a coordinated counterion, but never the ionic compound. Increasing the steric bulk in RZn(+) to R=CH2 CMe3 , CH2 SiMe3 , or Cp*, thus attempting to induce ionization, failed and led only to reaction mixtures including anion decomposition. However, ionization of the ion-like EtZn(Al(OR(F) )4 ) compound with arenes yielded the [EtZn(arene)2 ](+) [Al(OR(F) )4 ](-) salts with arene=toluene, mesitylene, or o-difluorobenzene (o-DFB)/toluene...
September 15, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27573587/discovery-of-alkenones-with-variable-methylene-interrupted-double-bonds-implications-for-the-biosynthetic-pathway
#19
Yinsui Zheng, James T Dillon, Yifan Zhang, Yongsong Huang
Alkenones (C37 -C40 ) are highly specific biomarkers produced by certain haptophyte algae in ocean and lacustrine environments and have been widely used for paleoclimate studies. Unusual shorter-chain alkenones (SCA; e.g., C35 and C36 ) have been found in environmental and culture samples, but the origin and structure of these compounds are much less understood. The marine alkenone producer, Emiliania huxleyi CCMP2758 strain, was reported with abundant C35:2 Me (∆(12, 19) ) alkenones when cultured at 15°C (Prahl et al...
December 2016: Journal of Phycology
https://www.readbyqxmd.com/read/27563222/protective-effects-of-silymarin-alone-or-in-combination-with-chlorogenic-acid-and-or-melatonin-against-carbon-tetrachloride-induced-hepatotoxicity
#20
Nouf Al-Rasheed, Laila Faddah, Nawal Al-Rasheed, Yieldez A Bassiouni, Iman H Hasan, Ayman M Mahmoud, Raeesa A Mohamad, Hazar I Yacoub
OBJECTIVE: The aim of this study was to evaluate the hepatoprotective effects of silymarin (SIL), alone and combined with chlorogenic acid (CA) and/or melatonin (ME), using a rat model of carbon tetrachloride (CCl4)-induced injury. MATERIALS AND METHODS: Hepatotoxicity was induced by a single dose of CCl4 (1 ml/kg, IP). One day after, rats were received SIL (200 mg/kg) alone or in combination with CA (60 mg/kg) and/or ME (20 mg/kg) for 21 days. RESULTS: SIL significantly decreased serum alanine aminotransferase, inflammatory cytokines, and vascular endothelial growth factor levels...
May 2016: Pharmacognosy Magazine
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