keyword
MENU ▼
Read by QxMD icon Read
search

M

keyword
https://www.readbyqxmd.com/read/29454300/gold-copper-bimetallic-nanoparticles-supported-on-nano-p-zeolite-modified-carbon-paste-electrode-as-an-efficient-electrocatalyst-and-sensitive-sensor-for-determination-of-hydrazine
#1
Fatemeh Amiripour, Seyed Naser Azizi, Shahram Ghasemi
In this report, a facile, efficient and low cost electrochemical sensor based on bimetallic Au-Cu nanoparticles supported on P nanozeolite modified carbon paste electrode (Au-Cu/NPZ/CPE) was constructed and its efficiency for determination of hydrazine in trace level was studied. For this purpose, agro waste material, stem sweep ash (SSA) was employed as the starting material (silica source) for the synthesis of nano P zeolite (NPZ). After characterization of the synthesized NPZ by analytical instruments (scanning electronic microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) spectroscopy), construction of Au-Cu/NPZ/CPE was performed by three steps procedure involving preparation of nano P zeolite modified carbon paste electrode (NPZ/CPE), introducing Cu +2 ions into nano zeolite structure by ion exchange and electrochemical reduction of Cu +2 ions upon applying constant potential...
February 5, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29454298/is-the-biparietal-diameter-of-fetuses-in-late-gestation-too-variable-to-predict-readiness-for-cesarean-section-in-dogs
#2
K G M De Cramer, J O Nöthling
Correct assessment of readiness for cesarean section is essential for timing elective cesarean section during late pregnancy in the bitch. In humans, biparietal diameter is sufficiently precise and accurate and used in a clinical setting daily. The objectives of this study were to determine whether fetal biparietal diameter in late gestation in the dog could be used to predict readiness for cesarean section by having reached a minimum cut-off value and to correlate the biparietal diameter to birth weight. The biparietal diameter of 208 puppies in 34 litters from 31 English bulldog bitches and 660 puppies in 78 litters from 70 Boerboel bitches were measured immediately after delivery by cesarean section, performed at full term, using digital calipers...
February 10, 2018: Theriogenology
https://www.readbyqxmd.com/read/29454294/parents-and-early-adolescents-self-efficacy-about-anger-regulation-and-early-adolescents-internalizing-and-externalizing-problems-a-longitudinal-study-in-three-countries
#3
Laura Di Giunta, Anne-Marie R Iselin, Jennifer E Lansford, Nancy Eisenberg, Carolina Lunetti, Eriona Thartori, Emanuele Basili, Concetta Pastorelli, Dario Bacchini, Liliana Maria Uribe Tirado, Maria Gerbino
The present study examines whether early adolescents' self-efficacy beliefs about anger regulation mediate the relation between parents' self-efficacy beliefs about anger regulation and early adolescents' internalizing and externalizing problems. Participants were 534 early adolescents (T1: M age = 10.89, SD = .70; 50% female), their mothers (n = 534), and their fathers (n = 431). Families were drawn from Colombia, Italy, and the USA. Follow-up data were obtained two (T2) and three (T3) years later. At T1 and T3, parents' self-efficacy beliefs were self-reported and internalizing and externalizing problems were assessed via mothers', fathers', and early adolescents' reports...
February 14, 2018: Journal of Adolescence
https://www.readbyqxmd.com/read/29454293/health-professions-faculty-beliefs-confidence-use-and-perceptions-of-organizational-culture-and-readiness-for-ebp-a-cross-sectional-descriptive-survey
#4
Kerry A Milner, Holly B Bradley, Tammy Lampley
BACKGROUND: Evidence-based practice (EBP) is an essential skill and ethical obligation for all practicing health professions clinicians because of its strong association with improved health outcomes. Emerging evidence suggests that faculty who prepare these clinicians lack proficiency to teach EBP. OBJECTIVES: The purpose of this study was to describe; 1) health profession faculty beliefs about and confidence in their ability to teach and implement EBP, 2) use of EBP for education, 3) organizational culture and readiness for EBP; and to determine whether relationships exist among these variables...
February 8, 2018: Nurse Education Today
https://www.readbyqxmd.com/read/29454289/walking-speed-measurement-with-an-ambient-measurement-system-ams-in-patients-with-multiple-sclerosis-and-walking-impairment
#5
Francois Bethoux, Jonathan S Varsanik, Timothy W Chevalier, Elkan F Halpern, Darlene Stough, Zebadiah M Kimmel
BACKGROUND: Walking speed is an important measure of gait impairment in multiple sclerosis (MS). The clinical assessment of walking speed requires dedicated time, space, and personnel, and may not accurately gauge real-world performance. The term "Ambient Measurement System" (AMS) refers to a new class of device that passively measures walking speed at home, without the need for dedicated space or specialized setup. This study compared an AMS, Echo5D, versus in-clinic standard measures of walking speed on a straight path...
February 8, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29454286/the-vasodilatory-effect-of-allopurinol-mediates-its-antihypertensive-effect-effects-on-calcium-movement-and-cardiac-hemodynamics
#6
Hany M El-Bassossy, Mona F Mahmoud, Basma G Eid
Despite the reported reduction in blood pressure in hypertensive patients treated with allopurinol, the mechanism of the allopurinol hypotensive effect is still unclear. In the current study, the hypotensive effect of allopurinol has been fully investigated in hypertensive rats. Hypertension was induced in rats by angiotensin II (120 ng/min/kg) infusion for two weeks. Rats were then subjected to real-time recording of blood pressure, left ventricular pressure and volume and surface ECG. After 10 min of basal recording, allopurinol was slowly injected into the femoral vein with a dose of 10 μmole/kg...
February 14, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29454282/contaminants-of-emerging-concern-presence-and-adverse-effects-in-fish-a-case-study-in-the-laurentian-great-lakes
#7
Zachary G Jorgenson, Linnea M Thomas, Sarah M Elliott, Jenna E Cavallin, Eric C Randolph, Steven J Choy, David A Alvarez, Jo A Banda, Daniel J Gefell, Kathy E Lee, Edward T Furlong, Heiko L Schoenfuss
The Laurentian Great Lakes are a valuable natural resource that is affected by contaminants of emerging concern (CECs), including sex steroid hormones, personal care products, pharmaceuticals, industrial chemicals, and new generation pesticides. However, little is known about the fate and biological effects of CECs in tributaries to the Great Lakes. In the current study, 16 sites on three rivers in the Great Lakes basin (Fox, Cuyahoga, and Raquette Rivers) were assessed for CEC presence using polar organic chemical integrative samplers (POCIS) and grab water samplers...
February 14, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29454281/probing-the-%C3%AE-pocket-of-the-active-site-of-human-liver-glycogen-phosphorylase-with-3-c-%C3%AE-d-glucopyranosyl-5-4-substituted-phenyl-1-2-4-triazole-inhibitors
#8
Efthimios Kyriakis, Theodora G A Solovou, Sándor Kun, Katalin Czifrák, Béla Szőcs, László Juhász, Éva Bokor, George A Stravodimos, Anastassia L Kantsadi, Demetra S M Chatzileontiadou, Vassiliki T Skamnaki, László Somsák, Demetres D Leonidas
Human liver glycogen phosphorylase (hlGP), a key enzyme in glycogen metabolism, is a valid pharmaceutical target for the development of new anti-hyperglycaemic agents for type 2 diabetes. Inhibitor discovery studies have focused on the active site and in particular on glucopyranose based compounds with a β-1 substituent long enough to exploit interactions with a cavity adjacent to the active site, termed the β-pocket. Recently, C-β-d-glucopyranosyl imidazoles and 1, 2, 4-triazoles proved to be the best known glucose derived inhibitors of hlGP...
February 12, 2018: Bioorganic Chemistry
https://www.readbyqxmd.com/read/29454278/towards-a-better-understanding-on-mercury-adsorption-by-magnetic-bio-adsorbents-with-%C3%AE-fe-2-o-3-from-pinewood-sawdust-derived-hydrochar-influence-of-atmosphere-in-heat-treatment
#9
Huabin Wang, Yong Liu, Jerosha Ifthikar, Lerong Shi, Aimal Khan, Zhulei Chen, Zhuqi Chen
Pyrolysis under protective atmosphere was regarded as an indispensable process for the preparation of biomass-based adsorbents to achieve higher surface areas. In this paper, magnetic carbon composites (MCC) that fabricated under air atmosphere showed an adsorption capacity of 167.22 mg/g in 200 ppm Hg(II), which was significantly higher than magnetic biochar (MBC, 31.80 mg/g) that fabricated under traditional nitrogen protection, and this remarkable performance of MCC was consistent in a wide range of pHs...
February 6, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29454260/solar-photo-fenton-treatment-of-microcystin-lr-in-aqueous-environment-transformation-products-and-toxicity-in-different-water-matrices
#10
Akin Karci, Elizabeth M Wurtzler, Armah A de la Cruz, David Wendell, Dionysios D Dionysiou
Transformation products and toxicity patterns of microcystin-LR (MC-LR), a common cyanotoxin in freshwaters, during degradation by solar photo-Fenton process were studied in the absence and presence of two major water components, namely fulvic acid and alkalinity. The transformation products m/z 795, 835, 515/1030 and 532 can be formed through attack of OH on the conjugated carbon double bonds of Adda. Transformation products with m/z 1010, 966 and 513 can be generated through the attack of OH on the methoxy group of Adda...
January 2, 2018: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29454258/the-role-of-dissociation-in-revictimization-across-the-lifespan-a-32-year-prospective-study
#11
Osnat Zamir, Ohad Szepsenwol, Michelle M Englund, Jeffry A Simpson
Exposure to childhood abuse puts women at risk for revictimization in adult intimate relationships, but knowledge about the mechanism by which it occurs is limited. The present study investigated whether dissociation mediates the effect of exposure to physical or sexual child abuse on intimate partner violence in adulthood. We tested this using prospective data collected from birth to age 32 from 80 female participants in the Minnesota Longitudinal Study of Risk and Adaptation. We found that women who experienced sexual or physical abuse during the first 17...
February 14, 2018: Child Abuse & Neglect
https://www.readbyqxmd.com/read/29454256/five-month-old-infants-have-expectations-for-the-accumulation-of-nonsolid-substances
#12
Erin M Anderson, Susan J Hespos, Lance J Rips
Infants fail to represent quantities of non-cohesive substances in paradigms where they succeed with solid objects. Some investigators have interpreted these results as evidence that infants do not yet have representations for substances. More recent research, however, shows that 5-month-old infants expect objects and substances to behave and interact in different ways. In the present experiments, we test whether infants have expectations for substances when the outcomes are not simply the opposite of those for objects...
February 14, 2018: Cognition
https://www.readbyqxmd.com/read/29454253/charge-transfer-complex-between-2-3-diaminopyridine-with-chloranilic-acid-synthesis-characterization-and-dft-td-dft-computational-studies
#13
Khairia M Al-Ahmary, Moustafa M Habeeb, Areej H Al-Obidan
New charge transfer complex (CTC) between the electron donor 2,3-diaminopyridine (DAP) with the electron acceptor chloranilic (CLA) acid has been synthesized and characterized experimentally and theoretically using a variety of physicochemical techniques. The experimental work included the use of elemental analysis, UV-vis, IR and 1 H NMR studies to characterize the complex. Electronic spectra have been carried out in different hydrogen bonded solvents, methanol (MeOH), acetonitrile (AN) and 1:1 mixture from AN-MeOH...
February 10, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29454239/phenol-separation-from-phenol-laden-saline-wastewater-by-membrane-aromatic-recovery-system-like-membrane-contactor-using-superhydrophobic-organophilic-electrospun-pdms-pmma-membrane
#14
Long-Fei Ren, Mister Adeel, Jun Li, Cong Xu, Zheng Xu, Xiaofan Zhang, Jiahui Shao, Yiliang He
Phenol recovery from phenol-laden saline wastewater plays an important role in the waste reclamation and pollution control. A membrane aromatic recovery system-like membrane contactor (MARS-like membrane contactor) was set up in this study using electrospun polydimethylsiloxane/polymethyl methacrylate (PDMS/PMMA) membrane with 0.0048 m 2 effective area to separate phenol from saline wastewater. Phenol and water contact angles of 0° and 162° were achieved on this membrane surface simultaneously, indicating its potential in the separation of phenol and water-soluble salt...
February 10, 2018: Water Research
https://www.readbyqxmd.com/read/29454218/atmospheric-pattern-of-volatile-organochlorine-compounds-and-hexachlorobenzene-in-the-surroundings-of-a-chlor-alkali-plant
#15
Barend L van Drooge, Esther Marco, Joan O Grimalt
The outdoor atmospheric distributions of chlorinated volatile organic compounds (VOCs) from locations receiving the emissions of a chlor-alkali plant have been studied. Trichloroethylene and tetrachloroethylene (medians 2.4 μg/m 3 and 1.7 μg/m 3 , respectively) were the most abundant compounds, which was in accordance with the production processes from these installations. The concentrations of trichlorofluoromethane, median 1.6 μg/m 3 , are rather similar to the average levels described in general in the troposphere and cannot be attributed to this specific source...
February 14, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29454213/spatio-temporal-comparison-of-neustonic-microplastic-density-in-hong-kong-waters-under-the-influence-of-the-pearl-river-estuary
#16
Pui Kwan Cheung, Lincoln Fok, Pui Lam Hung, Lewis T O Cheung
Rivers are recognised as an important source of plastic debris in the open sea. The Pearl River in China is estimated to transport 0.1milliontonnes of plastic waste to the open sea annually. However, no empirical study has been conducted to assess the plastic contamination levels in the Pearl River Estuary. Hong Kong is situated in the east of the Pearl River Estuary; its western waters are strongly influenced by river discharge, whereas the eastern waters are unaffected by the freshwater plume. In this study, we quantified the neustonic plastic debris density in the western and eastern waters of Hong Kong...
February 14, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29454211/seasonality-water-use-and-community-management-of-water-systems-in-rural-settings-qualitative-evidence-from-ghana-kenya-and-zambia
#17
Emma Kelly, Katherine F Shields, Ryan Cronk, Kristen Lee, Nikki Behnke, Tori Klug, Jamie Bartram
The sustainability of rural, community-managed water systems in sub-Saharan Africa depends in part on the ability of local water committees to repair breakdowns and carry out the operation and maintenance (O&M) of the system. Much of sub-Saharan Africa has two distinct seasons that affect the availability of water sources and how people use water. Little is known about how seasonality affects water system management. This qualitative study is based on 320 interviews and focus group discussions and examines the effects of season on community water use and management in Ghana, Kenya and Zambia...
February 14, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29454201/nitrous-oxide-emissions-from-near-zero-water-exchange-brackish-recirculating-aquaculture-systems
#18
Uri Yogev, Adiel Atari, Amit Gross
The development of intensive recirculating aquaculture systems (RAS) with low water exchange has accelerated in recent years as a result of environmental, economic and other concerns. In these systems, fish are commonly grown at high density, 50 to 150kg/m 3 , using high-protein (30%-60%) feeds. Typically, the RAS consists of a solid treatment and a nitrification unit; in more advanced RAS, there is an additional denitrification step. Nitrous oxide (N 2 O), a byproduct during nitrification and denitrification processes, is a potent greenhouse gas that destroys the ozone layer...
February 14, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29454199/benthic-nitrite-exchanges-in-the-seine-river-france-an-early-diagenetic-modeling-analysis
#19
Zahra Akbarzadeh, Anniet M Laverman, Fereidoun Rezanezhad, Mélanie Raimonet, Eric Viollier, Babak Shafei, Philippe Van Cappellen
Nitrite is a toxic intermediate compound in the nitrogen (N) cycle. Elevated concentrations of nitrite have been observed in the Seine River, raising questions about its sources and fate. Here, we assess the role of bottom sediments as potential sources or sinks of nitrite along the river continuum. Sediment cores were collected from two depocenters, one located upstream, the other downstream, from the largest wastewater treatment plant (WWTP) servicing the conurbation of Paris. Pore water profiles of oxygen, nitrate, nitrite and ammonium were measured...
February 14, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29454198/long-term-exposure-to-air-pollution-and-the-risk-of-suicide-death-a-population-based-cohort-study
#20
Jin-Young Min, Hye-Jin Kim, Kyoung-Bok Min
Suicide is a major public health problem. Previous studies have reported a significant association between acute exposure to air pollution and suicide; little attention has been paid to the long-term effects of air pollution on risk of suicide. We investigated whether long-term exposure to particulate matter of ≤10μm in diameter (PM 10 ), nitrogen dioxide (NO 2 ), and sulfur dioxide (SO 2 ) would be associated with a greater risk of death by suicide. The study sample comprised 265,749 adults enrolled in the National Health Insurance Service-National Sample Cohort (2002-2013) in South Korea...
February 14, 2018: Science of the Total Environment
keyword
keyword
19677
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"