keyword
MENU ▼
Read by QxMD icon Read
search

water science

keyword
https://www.readbyqxmd.com/read/28934127/removal-of-phenolic-compounds-from-water-using-sewage-sludge-based-activated-carbon-adsorption-a-review
#1
REVIEW
Nuhu Dalhat Mu'azu, Nabeel Jarrah, Mukarram Zubair, Omar Alagha
Due to their industrial relevance, phenolic compounds (PC) are amongst the most common organic pollutants found in many industrial wastewater effluents. The potential detrimental health and environmental impacts of PC necessitate their removal from wastewater to meet regulatory discharge standards to ensure meeting sustainable development goals. In recent decades, one of the promising, cost-effective and environmentally benign techniques for removal of PC from water streams has been adsorption onto sewage sludge (SS)-based activated carbon (SBAC)...
September 21, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28930435/new-triplet-sensitization-routes-for-photon-upconversion-thermally-activated-delayed-fluorescence-molecules-inorganic-nanocrystals-and-singlet-to-triplet-absorption
#2
Nobuhiro Yanai, Nobuo Kimizuka
Photon upconversion based on triplet-triplet annihilation (TTA-UC) has attracted much interest because of its possible applications to renewable energy production and biological fields. In particular, the UC of near-infrared (NIR) light to visible (vis) light is imperative to overcome the Shockley-Queisser limit of single-junction photovoltaic cells, and the efficiency of photocatalytic hydrogen production from water can also be improved with the aid of vis-to-ultraviolet (UV) UC. However, both processes have met limitations in the wavelength range, efficiency, and sensitivity for weak incident light...
September 20, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28929143/enhanced-stability-and-water-solubilizing-capacity-of-water-in-oil-microemulsions-based-on-protic-ionic-liquids
#3
Akhil Pratap Singh, Kaushik Kundu, Vikram Singh, Ramesh L Gardas, Sanjib Senapati
In an attempt to increase the stability and water uptake capacity of water-in-oil (W/O) microemulsions, here we study the physicochemical behavior of a series of protic ionic liquid based water/oil microemulsions, wherein solute amounts of biocompatible tetramethylguanidinium cation-based ionic liquids (ILs) are added to the aqueous phase of water-in-oil (W/O) microemulsions. FTIR and time-resolved fluorescence measurements showed an increased water uptake in these reverse micellar droplets, compared to conventional W/O microemulsions of similar compositions...
September 20, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28927994/current-bone-substitutes-for-implant-dentistry
#4
REVIEW
Masahiro Yamada, Hiroshi Egusa
PURPOSE: Alveolar ridge augmentation is essential for success in implant therapy and depends on the biological performance of bone graft materials. This literature review aims to comprehensively explain the clinically relevant capabilities and limitations of currently available bone substitutes for bone augmentation in light of biomaterial science. STUDY SELECTION: The biological performance of calcium phosphate-based bone substitutes was categorized according to space-making capability, biocompatibility, bioabsorption, and volume maintenance over time...
September 15, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28924272/achievements-of-healthcare-services-vis-a-vis-the-mdg-targets-evidence-from-pakistan
#5
Saeeda Batool, Ather Maqsood Ahmed
OBJECTIVE: To investigate the impact of public healthcare facilities and socio-economic circumstances on the status of child health. METHODS: The study was conducted at the School of Social Sciences and Humanities of the National University of Sciences and Technology, Islamabad, Pakistan. The human opportunity index framework was used to measure the trends in health inequalities and coverage using Pakistan Social and Living Standards Measurement dataset from year 2001-02 to 2012-13 at national and provincial levels...
September 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28921410/vyacheslav-slava-klimov-1945-2017-a-scientist-par-excellence-a-great-human-being-a-friend-and-a-renaissance-man
#6
Suleyman I Allakhverdiev, Sergey K Zharmukhamedov, Margarita V Rodionova, Vladimir A Shuvalov, Charles Dismukes, Jian-Ren Shen, James Barber, Göran Samuelsson, Govindjee
Vyacheslav Vasilevich (V.V.) Klimov (or Slava, as most of us called him) was born on January 12, 1945 and passed away on May 9, 2017. He began his scientific career at the Bach Institute of Biochemistry of the USSR Academy of Sciences (Akademy Nauk (AN) SSSR), Moscow, Russia, and then, he was associated with the Institute of Photosynthesis, Pushchino, Moscow Region, for about 50 years. He worked in the field of biochemistry and biophysics of photosynthesis. He is known for his studies on the molecular organization of photosystem II (PSII)...
September 18, 2017: Photosynthesis Research
https://www.readbyqxmd.com/read/28920009/raman-under-water-nonlinear-and-nearfield-approaches-for-electrochemical-surface-science
#7
REVIEW
Natalia Martín Sabanés, Katrin F Domke
Electrochemistry is re-gaining attention among scientists because the complex interplay between electronic and chemical interfacial processes lies at the bottom of a broad range of important research disciplines like alternative energy conversion or green catalysis and synthesis. While rapid progress has been made in recent years regarding novel technological applications, the community increasingly recognizes that the understanding of the molecular processes that govern macroscopic device properties is still rather limited - which hinders a systematic and more complete exploration of novel material and functionality space...
August 2017: ChemElectroChem
https://www.readbyqxmd.com/read/28917735/trace-analysis-of-nitrite-ions-in-environmental-samples-by-using-in-situ-synthesized-zein-biopolymeric-nanoparticles-as-the-novel-green-solid-phase-extractor
#8
Amir Hatamie, Mahmoud Nassiri, Meghdad Doust Alivand, Amit Bhatnagar
For the first time, a novel green method using Zein biopolymeric nanoparticles as a green dispersive solid-phase extractor is reported for the separation and preconcentration of trace amount of nitrite (NO2(-)) ions in ppb levels. The Zein protein is a biodegradable hydrophobic plant protein that is obtained from corn and is composed of a number of hydrophobic amino acids. Zein bionanoparticles were synthesized in an anti-solvent process and used as a new biosorbent in the extraction technique. In the proposed technique, by using a standard method at first, a mixture of 1-naphthylamine and sulphanilic acid as selective regents was added to the samples, and in the presence of the nitrite ion, a red azo product was formed...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28915131/body-mass-index-and-saltwater-drowning
#9
Roger W Byard
Comparison of body mass index (BMI) was undertaken between 30 cases of salt water drowning and 30 age- and sex-matched controls randomly selected from the autopsy files of Forensic Science SA, Adelaide, Australia, during the period 2000 to 2017. The age range of drowning cases and controls was 18 to 80 (average, 49) years, with a male to female ratio of 19:11. The BMIs of the drowning cases ranged from 15.5 to 37.5 (average, 25.4; median, 23). The control cases had higher BMIs ranging from 22.9 to 44.3 (average, 29...
September 14, 2017: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/28905622/proton-diffusion-through-bilayer-pores
#10
Jesse Gatten McDaniel, Arun Yethiraj
The transport of protons through channels in complex environments is important in biology and materials science. In this work, we use multistate empirical valence bond simulations to study proton transport within a well-defined bilayer pore in a lamellar Lβ phase lyotropic liquid crystal (LLC). The LLC is formed from the self-assembly of dicarboxylate gemini surfactants in water, and a bilayer-spanning pore of ∼3-5 A radius results from the uneven partitioning of surfactants between the two leaflets of the lamella...
September 14, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28905441/the-vasopressin-system-new-insights-for-patients-with-kidney-diseases-epidemiological-evidence-and-therapeutic-perspectives
#11
W F Clark, O Devuyst, R Roussel
People with chronic kidney disease (CKD) are at risk of severe outcomes, such as end-stage renal disease or cardiovascular disease, and CKD is a globally increasing health burden with a high personal and economic cost. Despite major progresses in prevention and therapeutics in last decades, research is still needed to reverse this epidemic trend. The regulation of water balance and the state of activation of the vasopressin system have emerged as factors tightly associated with kidney health, in the general population but also in specific conditions; among them, various stages of CKD, diabetes and autosomal dominant polycystic kidney disease (ADPKD)...
September 14, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28903553/monitoring-microbial-mineralization-using-reverse-stable-isotope-labelling-analysis-by-mid-infrared-laser-spectroscopy
#12
Xiyang Dong, Maik A Jochmann, Martin Elsner, Armin H Meyer, Leonard E Bäcker, Mona Rahmatullah, Daniel Schunk, Guido Lens, Rainer Udo Meckenstock
Assessing the biodegradation of organic compounds is a frequent question in environmental science. Here, we present a sensitive, inexpensive, and simple approach to monitor microbial mineralization using reverse stable isotope labelling analysis (RIL) of dissolved inorganic carbon (DIC). The medium for the biodegradation assay contains regular organic compounds and (13)C-labelled DIC with (13)C atom fractions (x((13)C)DIC) higher than natural abundance (typically 2-50%). The produced CO2 (x((13)C) ≈ 1.11%) gradually dilutes the initial x((13)C)DIC allowing to quantify microbial mineralization using mass-balance calculations...
September 14, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28902513/co-existence-of-physisorbed-and-solvated-hcl-at-warm-ice-surfaces
#13
Xiangrui Kong, Astrid Waldner, Fabrizio Orlando, Luca Artiglia, Thomas Huthwelker, Markus Ammann, Thorsten Bartels-Rausch
The interfacial ionization of strong acids is an essential factor of multi-phase and heterogeneous chemistry in environmental science, crysophereic science, catalysis research and material science. We investigate the mechanism of HCl dissociation at the ice surface using surface-sensitive ambient-pressure core level X-ray photoelectron spectroscopy. At 253 K and low surface coverage, adsorbed HCl is found in both states, molecular and dissociated. Depth profiles derived from XPS data clearly show that the dissociated acid is found deeper in the interfacial region compared to the molecular form...
September 13, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28894537/lifestyles-in-suburban-populations-a-systematic-review
#14
REVIEW
Samira Khayat, Mahrokh Dolatian, Ali Navidian, Zohreh Mahmoodi, Nasibeh Sharifi, Amir Kasaeian
BACKGROUND: Lifestyle and suburban population are important issues in the field of health. The living conditions of informal settlements can lead to acquisition of an unhealthy lifestyle. OBJECTIVE: This study has been designed to investigate the articles that have been published regarding lifestyle in suburban populations. METHODS: The present research was a systematic review of studies in databases including Iranmedex, Magiran, SID, Irandoc, PubMed, Google Scholar, Science Direct and Scopus, in 2017...
July 2017: Electronic Physician
https://www.readbyqxmd.com/read/28888793/metal-bioavailability-in-ecological-risk-assessment-of-freshwater-ecosystems-from-science-to-environmental-management
#15
REVIEW
Kristiina Väänänen, Matti T Leppänen, XuePing Chen, Jarkko Akkanen
Metal contamination in freshwater ecosystems is a global issue and metal discharges to aquatic environments are monitored in order to protect aquatic life and human health. Bioavailability is an important factor determining metal toxicity. In aquatic systems, metal bioavailability depends on local water and sediment characteristics, and therefore, the risks are site-specific. Environmental quality standards (EQS) are used to manage the risks of metals in aquatic environments. In the simplest form of EQSs, total concentrations of metals in water or sediment are compared against pre-set acceptable threshold levels...
September 7, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28888213/occurrence-fate-and-transformation-of-emerging-contaminants-in-water-an-overarching-review-of-the-field
#16
REVIEW
John Wilkinson, Peter S Hooda, James Barker, Stephen Barton, Julian Swinden
Many of the products and drugs used commonly contain chemical components which may persist through sewage treatment works (STW) and eventually enter the aquatic environment as parent compounds, metabolites, or transformation products. Pharmaceuticals and personal care products (PPCPs) and other emerging contaminants (ECs) have been detected in waters (typically ng/L) as well as more recently bound to sediment and plastic particles (typically ng/g). Despite significant advancement of knowledge since the late 1990s, the fate of these contaminants/transformation products once introduced into the aquatic environment remains relatively unresolved...
September 6, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28885215/hyperspectral-imaging-as-a-novel-diagnostic-tool-in-microcirculation-of-wounds
#17
Georg Daeschlein, Inga Langner, Thomas Wild, Sebastian von Podewils, Claudia Sicher, Thomas Kiefer, Michael Jünger
Monitoring of perfusion is a cornerstone in surgery, phlebology and basic science to proof wound healing by interventions. In chronic wound management it is of utmost importance to realize and parametrize wound bed perfusion to verify actual, and plan further treatment by noninvasive diagnostics. Up to now monitoring is based on visual inspection of wounds as conventionally practiced over more than decades. The main problems of visual inspection are the lack of standardization and comparability because of interindividual variations...
September 4, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28884331/paratuberculosis-in-latin-america-a-systematic-review
#18
REVIEW
I F Espeschit, D G G Schwarz, A C S Faria, M C C Souza, F A Paolicchi, R A Juste, I A Carvalho, M A S Moreira
Latin America is the definition of the American group, where languages of Latin origin are spoken, including countries in South, Central, and North America. Paratuberculosis is a gastrointestinal contagious chronic disease that affects ruminants, whose etiological agent is the bacilli Mycobacterium avium subsp. paratuberculosis (MAP). Paratuberculosis is characterized by intermittent diarrhea, decreased milk production, dehydration, and progressive weight loss and is possibly involved in Crohn's disease, a human intestinal disease...
September 7, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28881775/uridine-diphosphate-glucuronosyltransferase-2b15-d85y-gene-polymorphism-is-associated-with-lower-prostate-cancer-risk-a-systematic-review-and-meta-analysis
#19
Xiao Zhong, Jiayu Feng, Ya Xiao, Pingxian Wang, Qiming Fan, Ronghua Wu, Wengang Hu, Chibing Huang
UGT2B15 (uridine diphosphate-glucuronosyltransferase 2B15) catalyzes the conversion of lipophilic C19 steroid androgens such as dihydrotestosterone (DHT) into water-soluble metabolites that can be excreted. Studies of the association between the UGT2B15 gene D85Y polymorphism and prostate cancer have yielded contradictory results. We therefore systematically searched in the PubMed, EMBASE, Science Direct/Elsevier, CNKI, and Cochrane Library databases, and identified six relevant studies with which to perform a meta-analysis of the relation between UGT2B15 D85Y polymorphism and prostate cancer risk...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28877009/a-synoptic-view-of-the-ventilation-and-circulation-of-antarctic-bottom-water-from-chlorofluorocarbons-and-natural-tracers
#20
Sarah G Purkey, William M Smethie, Geoffrey Gebbie, Arnold L Gordon, Rolf E Sonnerup, Mark J Warner, John L Bullister
Antarctic Bottom Water (AABW) is the coldest, densest, most prolific water mass in the global ocean. AABW forms at several distinct regions along the Antarctic coast and feeds into the bottom limb of the meridional overturning circulation, filling most of the global deep ocean. AABW has warmed, freshened, and declined in volume around the globe in recent decades, which has implications for the global heat and sea level rise budgets. Over the past three decades, the use of tracers, especially time-varying tracers such as chlorofluorocarbons, has been essential to our understanding of the formation, circulation, and variability of AABW...
September 6, 2017: Annual Review of Marine Science
keyword
keyword
109054
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"