keyword
MENU ▼
Read by QxMD icon Read
search

water) source

keyword
https://www.readbyqxmd.com/read/27933257/assessment-of-the-quality-of-groundwater-for-drinking-purposes-in-the-upper-west-and-northern-regions-of-ghana
#1
Sixtus Bieranye Bayaa Martin Saana, Samuel Asiedu Fosu, Godfred Etsey Sebiawu, Napoleon Jackson, Thomas Karikari
BACKGROUND: Underground water is an important natural resource serving as a reliable source of drinking water for many people worldwide, especially in developing countries. Underground water quality needs to be given a primary research and quality control attention due to possible contamination. This study was therefore designed to determine the physico-chemical and bacteriological quality of borehole water in the Upper West and Northern regions of Ghana. METHODS: The study was conducted in seven districts in Ghana (including six in the Upper West region and one in the Northern region)...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27932956/hypothalamic-vasopressinergic-projections-innervate-central-amygdala-gabaergic-neurons-implications-for-anxiety-and-stress-coping
#2
Vito S Hernández, Oscar R Hernández, Miguel Perez de la Mora, María J Gómora, Kjell Fuxe, Lee E Eiden, Limei Zhang
The arginine-vasopressin (AVP)-containing hypothalamic magnocellular neurosecretory neurons (VPMNNs) are known for their role in hydro-electrolytic balance control via their projections to the neurohypophysis. Recently, projections from these same neurons to hippocampus, habenula and other brain regions in which vasopressin infusion modulates contingent social and emotionally-affected behaviors, have been reported. Here, we present evidence that VPMNN collaterals also project to the amygdaloid complex, and establish synaptic connections with neurons in central amygdala (CeA)...
2016: Frontiers in Neural Circuits
https://www.readbyqxmd.com/read/27932904/brachiopoda-of-greece-an-annotated-checklist
#3
Vasilis Gerovasileiou, Nicolas Bailly
BACKGROUND: Until today, only scattered species records of Brachiopoda from Greece have been included in publications on the Mediterranean brachiopod fauna. These records were mostly based on material collected during marine expeditions in the eastern Mediterranean decades ago, while few recent additional records appear in ecological studies. The aim of this paper was to give the first checklist of brachiopod species of Greece, in the framework of the Greek Taxon Information System (GTIS) initiative of the LifeWatchGreece Research Infrastructure (ESFRI), by reviewing the existing literature...
2016: Biodiversity Data Journal
https://www.readbyqxmd.com/read/27932595/the-relationship-between-acute-malnutrition-hygiene-practices-water-and-livestock-and-their-program-implications-in-eastern-chad
#4
Anastasia Marshak, Helen Young, Elizabeth N Bontrager, Erin M Boyd
BACKGROUND: The causes of acute malnutrition are complex and time and geography variant and need to be better understood in order to both design more effective nutrition programs and evaluate them. The findings reported here are part of an evaluation of a 4-year multisectoral nutrition program led by Concern Worldwide in the Sila Region of eastern Chad. OBJECTIVE: To present evidence and learning about the relationships between acute malnutrition and potential drivers in Sila, Chad...
December 8, 2016: Food and Nutrition Bulletin
https://www.readbyqxmd.com/read/27932214/a-regional-assessment-of-chemicals-of-concern-in-surface-waters-of-four-midwestern-united-states-national-parks
#5
Sarah M Elliott, David D VanderMeulen
Anthropogenic chemicals and their potential for adverse biological effects raise concern for aquatic ecosystem health in protected areas. During 2013-15, surface waters of four Midwestern United States national parks were sampled and analyzed for wastewater indicators, pharmaceuticals, personal care products, and pesticides. More chemicals and higher concentrations were detected at the two parks with greater urban influences (Mississippi National River and Recreation Area and Indiana Dunes National Lakeshore) than at the two more remote parks (Apostle Islands National Lakeshore and Isle Royale National Park)...
December 5, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27931926/evaluating-wildlife-cattle-contact-rates-to-improve-the-understanding-of-dynamics-of-bovine-tuberculosis-transmission-in-michigan-usa
#6
Michael J Lavelle, Shannon L Kay, Kim M Pepin, Daniel A Grear, Henry Campa, Kurt C VerCauteren
Direct and indirect contacts among individuals drive transmission of infectious disease. When multiple interacting species are susceptible to the same pathogen, risk assessment must include all potential host species. Bovine tuberculosis (bTB) is an example of a disease that can be transmitted among several wildlife species and to cattle, although the potential role of several wildlife species in spillback to cattle remains unclear. To better understand the complex network of contacts and factors driving disease transmission, we fitted proximity logger collars to beef and dairy cattle (n=37), white-tailed deer (Odocoileus virginianus; n=29), raccoon (Procyon lotor; n=53), and Virginia opossum (Didelphis virginiana; n=79) for 16 months in Michigan's Lower Peninsula, USA...
December 1, 2016: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/27931396/antimicrobial-resistance-in-the-environment
#7
Maggie R Williams, Robert D Stedtfeld, Xueping Guo, Syed A Hashsham
This review summarizes important publications from 2015 pertaining to the occurrence of antimicrobial resistance (AMR) in the environment. Emphasis is placed on sources of antibiotic resistance in the aquatic environment including wastewater treatment plants, hospitals, and agriculture, treatment and mitigation techniques, and surveillance and analysis methodologies for characterizing abundance data. As such, this review is organized into the following sections: i) occurrence of AMR in the environment, including surface waters, aquaculture, and wastewater ii) treatment technologies, and iii) technologies for rapid surveillance of AMR, iv) transmission between matrices, v) databases and analysis methods, and vi) gaps in AMR understanding...
October 2016: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/27931262/glymphatic-distribution-of-csf-derived-apoe-into-brain-is-isoform-specific-and-suppressed-during-sleep-deprivation
#8
Thiyagaragan M Achariyar, Baoman Li, Weiguo Peng, Philip B Verghese, Yang Shi, Evan McConnell, Abdellatif Benraiss, Tristan Kasper, Wei Song, Takahiro Takana, David M Holtzman, Maiken Nedergaard, Rashid Deane
BACKGROUND: Apolipoprotein E (apoE) is a major carrier of cholesterol and essential for synaptic plasticity. In brain, it's expressed by many cells but highly expressed by the choroid plexus and the predominant apolipoprotein in cerebrospinal fluid (CSF). The role of apoE in the CSF is unclear. Recently, the glymphatic system was described as a clearance system whereby CSF and ISF (interstitial fluid) is exchanged via the peri-arterial space and convective flow of ISF clearance is mediated by aquaporin 4 (AQP4), a water channel...
December 8, 2016: Molecular Neurodegeneration
https://www.readbyqxmd.com/read/27930709/assessing-inhalation-exposures-associated-with-contamination-events-in-water-distribution-systems
#9
Michael J Davis, Robert Janke, Thomas N Taxon
When a water distribution system (WDS) is contaminated, short-term inhalation exposures to airborne contaminants could occur as the result of domestic water use. The most important domestic sources of such exposures are likely to be showering and the use of aerosol-producing humidifiers, i.e., ultrasonic and impeller (cool-mist) units. A framework is presented for assessing the potential effects of short-term, system-wide inhalation exposures that could result from such activities during a contamination event...
2016: PloS One
https://www.readbyqxmd.com/read/27930319/co-synthesized-from-the-central-one-carbon-pool-as-source-for-the-iron-carbonyl-in-o2-tolerant-nife-hydrogenase
#10
Ingmar Bürstel, Elisabeth Siebert, Stefan Frielingsdorf, Ingo Zebger, Bärbel Friedrich, Oliver Lenz
Hydrogenases are nature's key catalysts involved in both microbial consumption and production of molecular hydrogen. H2 exhibits a strongly bonded, almost inert electron pair and requires transition metals for activation. Consequently, all hydrogenases are metalloenzymes that contain at least one iron atom in the catalytic center. For appropriate interaction with H2, the iron moiety demands for a sophisticated coordination environment that cannot be provided just by standard amino acids. This dilemma has been overcome by the introduction of unprecedented chemistry-that is, by ligating the iron with carbon monoxide (CO) and cyanide (or equivalent) groups...
December 5, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27929510/deriving-detector-specific-correction-factors-for-rectangular-small-fields-using-a-scintillator-detector
#11
Yujiao Qin, Hualiang Zhong, Ning Wen, Karen Snyder, Yimei Huang, Indrin J Chetty
The goal of this study was to investigate small field output factors (OFs) for flat-tening filter-free (FFF) beams on a dedicated stereotactic linear accelerator-based system. From this data, the collimator exchange effect was quantified, and detector-specific correction factors were generated. Output factors for 16 jaw-collimated small fields (from 0.5 to 2 cm) were measured using five different detectors including an ion chamber (CC01), a stereotactic field diode (SFD), a diode detector (Edge), Gafchromic film (EBT3), and a plastic scintillator detector (PSD, W1)...
November 8, 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/27929489/clinically-relevant-investigation-of-flattening-filter-free-skin-dose
#12
Christopher L Guy, Kishor Karki, Manju Sharma, Siyong Kim
As flattening filter-free (FFF) photon beams become readily available for treat-ment delivery in techniques such as SBRT, thorough investigation of skin dose from FFF photon beams is necessary under clinically relevant conditions. Using a parallel-plate PTW Markus chamber placed in a custom water-equivalent phantom, surface-dose measurements were taken at 2 × 2, 3 × 3, 4 × 4, 6 × 6, 8 × 8, 10 × 10, 20 × 20, and 30 × 30 cm2 field sizes, at 80, 90, and 100 cm source-to-surface distances (SSDs), and with fields defined by jaws and multileaf collimator (MLC) using multiple beam energies (6X, 6XFFF, 10X, and 10XFFF)...
November 8, 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/27929387/real-time-analysis-of-isoprene-in-breath-by-using-ultraviolet-absorption-spectroscopy-with-a-hollow-optical-fiber-gas-cell
#13
Takuro Iwata, Takashi Katagiri, Yuji Matsuura
A breath analysis system based on ultraviolet-absorption spectroscopy was developed by using a hollow optical fiber as a gas cell for real-time monitoring of isoprene in breath. The hollow optical fiber functions as an ultra-small-volume gas cell with a long path. The measurement sensitivity of the system was evaluated by using nitric-oxide gas as a gas sample. The evaluation result showed that the developed system, using a laser-driven, high-intensity light source and a 3-m-long, aluminum-coated hollow optical fiber, could successfully measure nitric-oxide gas with a 50 ppb concentration...
December 5, 2016: Sensors
https://www.readbyqxmd.com/read/27929353/enhanced-survival-but-not-amplification-of-francisella-spp-in-the-presence-of-free-living-amoebae
#14
Helen Y Buse, Frank W Schaefer, Eugene W Rice
Transmission of Francisella tularensis, the etiologic agent of tularemia, has been associated with various water sources. Survival of many waterborne pathogens within free-living amoeba (FLA) is well documented; however, the role of amoebae in the environmental persistence of F. tularensis is unclear. In this study, axenic FLA cultures of Acanthamoeba castellanii, Acanthamoeba polyphaga, and Vermamoeba vermiformis were each inoculated with virulent strains of F. tularensis (Types A and B), the attenuated live vaccine strain, and Francisella novicida...
December 8, 2016: Acta Microbiologica et Immunologica Hungarica
https://www.readbyqxmd.com/read/27928755/mapping-the-scientific-research-on-non-point-source-pollution-a-bibliometric-analysis
#15
Beibei Yang, Kai Huang, Dezhi Sun, Yue Zhang
A bibliometric analysis was conducted to examine the progress and future research trends of non-point source (NPS) pollution during the years 1991-2015 based on the Science Citation Index Expanded (SCI-Expanded) of Web of Science (WoS). The publications referencing NPS pollution were analyzed including the following aspects: document type, publication language, publication output and characteristics, subject category, source journal, distribution of country and institution, author keywords, etc. The results indicate that the study of NPS pollution demonstrated a sharply increasing trend since 1991...
December 8, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27928508/a-perspective-on-physiological-studies-supporting-the-provision-of-scientific-advice-for-the-management-of-fraser-river-sockeye-salmon-oncorhynchus-nerka
#16
REVIEW
David A Patterson, Steven J Cooke, Scott G Hinch, Kendra A Robinson, Nathan Young, Anthony P Farrell, Kristina M Miller
The inability of physiologists to effect change in fisheries management has been the source of frustration for many decades. Close collaboration between fisheries managers and researchers has afforded our interdisciplinary team an unusual opportunity to evaluate the emerging impact that physiology can have in providing relevant and credible scientific advice to assist in management decisions. We categorize the quality of scientific advice given to management into five levels based on the type of scientific activity and resulting advice (notions, observations, descriptions, predictions and prescriptions)...
2016: Conservation Physiology
https://www.readbyqxmd.com/read/27928092/animal-husbandry-practices-and-perceptions-of-zoonotic-infectious-disease-risks-among-livestock-keepers-in-a-rural-parish-of-quito-ecuador
#17
Christopher Lowenstein, William F Waters, Amira Roess, Jessica H Leibler, Jay P Graham
Small-scale livestock production plays an essential role as a source of income and nutrition for households in low- and middle-income countries, yet these practices can also increase risk of zoonotic infectious diseases, especially among young children. To mitigate this risk, there is a need to better understand how livestock producers perceive and manage risks of disease transmission. Twenty semistructured, in-depth interviews were conducted with small-scale livestock producers in a semirural parish of Quito, Ecuador...
December 7, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27927870/insidious-risk-of-severe-mycobacterium-chimaera-infection-in-cardiac-surgery-patients
#18
Meera Chand, Theresa Lamagni, Katharina Kranzer, Jessica Hedge, Ginny Moore, Simon Parks, Samuel Collins, Carlos Del Ojo Elias, Nada Ahmed, Tim Brown, E Grace Smith, Peter Hoffman, Peter Kirwan, Brendan Mason, Alison Smith-Palmer, Philip Veal, Maeve K Lalor, Allan Bennett, James Walker, Alicia Yeap, Antonio Isidro Carrion Martin, Gayle Dolan, Sonia Bhatt, Andrew Skingsley, André Charlett, David Pearce, Katherine Russell, Simon Kendall, Andrew A Klein, Stephen Robins, Silke Schelenz, William Newsholme, Stephanie Thomas, Tim Collyns, Eleri Davies, Jim McMenamin, Lorraine Doherty, Tim Ea Peto, Derrick Crook, Maria Zambon, Nick Phin
BACKGROUND: An urgent UK investigation was launched to assess risk of invasive Mycobacterium chimaera infection in cardiothoracic surgery and a possible association with cardiopulmonary bypass heater-cooler units following alerts in Switzerland and the Netherlands. METHODS: Parallel investigations were pursued: i) identification of cardiopulmonary bypass-associated M. chimaera infection through national laboratory and hospital admissions data linkage ii) cohort study to assess patient risk iii) microbiological and aerobiological investigations of heater-coolers in situ and under controlled laboratory conditions iv) whole genome sequencing of clinical and environmental isolates...
December 7, 2016: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/27927869/healthcare-associated-mycobacterium-chimaera-transmission-and-infection-prevention-challenges-role-of-heater-cooler-units-as-a-water-source-in-cardiac-surgery
#19
EDITORIAL
Hajime Kanamori, David J Weber, William A Rutala
No abstract text is available yet for this article.
December 7, 2016: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/27927201/epidemiology-and-risk-factors-for-pneumonia-severity-and-mortality-in-bangladeshi-children-5-years-of-age-before-10-valent-pneumococcal-conjugate-vaccine-introduction
#20
Shampa Saha, Md Hasan, Lindsay Kim, Jennifer L Farrar, Belal Hossain, Maksuda Islam, Asm Nawshad Uddin Ahmed, M Ruhul Amin, Mohammed Hanif, Manzoor Hussain, Shams El-Arifeen, Cynthia G Whitney, Samir K Saha
BACKGROUND: Pneumonia is the leading infectious cause of morbidity and mortality in young children in Bangladesh. We present the epidemiology of pneumonia in Bangladeshi children <5 years before 10-valent pneumococcal conjugate vaccine introduction and investigate factors associated with disease severity and mortality. METHODS: Children aged 2-59 months admitted to three Bangladeshi hospitals with pneumonia (i.e., cough or difficulty breathing and age-specific tachypnea without danger signs) or severe pneumonia (i...
December 7, 2016: BMC Public Health
keyword
keyword
76799
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"