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https://www.readbyqxmd.com/read/28088120/3d-architecture-of-a-graphene-comoo4-composite-for-asymmetric-supercapacitors-usable-at-various-temperatures
#1
Yaru Jiang, Xin Zheng, Xiaoqin Yan, Yong Li, Xuan Zhao, Yue Zhang
Designing and optimizing the electrode materials and studying the electrochemical performance or cycle life of the supercapacitor under different working conditions are crucial to its practical application. Herein, we proposed a rational design of 3D-graphene/CoMoO4 nanoplates by a facile two-step hydrothermal method. Owing to the high electron transfer rate of graphene and the high activity of the CoMoO4 nanoplates, the three-dimensional electrode architectures achieved remarkable electrochemical performances with high areal specific capacitance (1255...
January 5, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28088115/in-situ-synthesis-of-novel-z-scheme-sns2-biobr-photocatalysts-with-superior-photocatalytic-efficiency-under-visible-light
#2
Fazheng Qiu, Wenjun Li, Fangzhi Wang, Hongda Li, Xintong Liu, Jiayi Sun
In this study, a novel SnS2/BiOBr heterojunction photocatalyst was synthesized via a facile in-situ growth strategy. The heterojunction interface was formed by loading BiOBr nanosheets on the surface of ultrathin hexagonal SnS2 nanoplates. UV/Vis diffuse reflectance spectroscopy (DRS) indicated that SnS2/BiOBr composites possessed stronger visible-light absorption. The as-fabricated SnS2/BiOBr heterojunction nanoplates exhibited considerable improvement in terms of photocatalytic activity for the degradation of rhodamine B (RhB) under visible light irradiation as compared with BiOBr and SnS2...
December 30, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28088104/biofabrication-of-size-controllable-silver-nanoparticles-a-green-approach
#3
Sireesh Babu Maddinedi, Badal Kumar Mandal, Swetha Kameswari Maddili
A facile biosynthetic approach for the size controllable production of silver nanoparticles (AgNPs) using the leaf extract of Cinnamomum tsoi as reducing and capping agent is developed. The polyphenolic functionalities present in the extract are essentially responsible for the synthesis and stabilization of AgNPs. The size and morphology of the AgNPs were effectively tuned by changing the volume of the extract. The availability of oxidized polyphenols play key role in tuning the size and morphology of the prepared NPs...
January 7, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28088015/transferrin-gated-mesoporous-silica-nanoparticles-for-redox-responsive-and-targeted-drug-delivery
#4
Xiaolu Chen, Hui Sun, Jun Hu, Xia Han, Honglai Liu, Ying Hu
This work reports on a targeted and controlled drug delivery system based on protein decorated mesoporous silica nanoparticles (MSNs). In this system, transferrin (Tf), a naturally existing protein, is grafted on the surfaces of MSNs via redox-cleavable disulfide bonds, serving as both a capping agent and a targeting ligand simultaneously. The uniform particles with ordered mesoporous structures and the successful construction of the Tf/MSN hybrid nanocarriers can be confirmed through combined techniques. It is found that the model anticancer drug doxorubicin (DOX) can be efficiently encapsulated in the MSNs in the absence of glutathione (GSH), and a burst release of DOX is observed when the system is exposed to GSH, indicating good capping efficiency of Tf and redox-responsive release of DOX...
January 8, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28088001/improving-the-sensitivity-and-accuracy-of-gamma-activation-analysis-for-the-rapid-determination-of-gold-in-mineral-ores
#5
James Tickner, Brianna Ganly, Bojan Lovric, Joel O'Dwyer
Mining companies rely on chemical analysis methods to determine concentrations of gold in mineral ore samples. As gold is often mined commercially at concentrations around 1 part-per-million, it is necessary for any analysis method to provide good sensitivity as well as high absolute accuracy. We describe work to improve both the sensitivity and accuracy of the gamma activation analysis (GAA) method for gold. We present analysis results for several suites of ore samples and discuss the design of a GAA facility designed to replace conventional chemical assay in industrial applications...
January 1, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28087998/performance-evaluation-of-pride-unda-system-with-pyroprocessing-feed-material
#6
Su Jung An, Hee Seo, Chaehun Lee, Seong-Kyu Ahn, Se-Hwan Park, Jeong-Hoe Ku
The PRIDE (PyRoprocessing Integrated inactive DEmonstration) is an engineering-scale pyroprocessing test-bed facility that utilizes depleted uranium (DU) instead of spent fuel as a process material. As part of the ongoing effort to enhance pyroprocessing safeguardability, UNDA (Unified Non-Destructive Assay), a system integrating three different non-destructive assay techniques, namely, neutron, gamma-ray, and mass measurement, for nuclear material accountancy (NMA) was developed. In the present study, UNDA's NMA capability was evaluated by measurement of the weight, (238)U mass, and U enrichment of oxide-reduction-process feed material (i...
December 30, 2016: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28087987/nmr-line-fitting-quantification-of-polysaccharide-n-acylurea-based-modification-in-glycoconjugates-of-salmonella-typhi-vi-polysaccharide
#7
Raine Garrido, Jean Pierre Soubal, Leonid Torres, Ubel Ramirez, Vicente Vérez
The polysaccharides modification via carbodiimide reaction is one of most applied method for obtaining conjugated vaccines against Salmonella enterica. However, N-acylurea carbodiimide adduct generated in the process is a critical impurity in carbohydrate-based vaccines. A quantitative NMR method was developed for assessing the N-acylurea carbodiimide adduct impurity. The procedure was based on line-fitting facilities for processing the NMR signals on complex spectra. The method showed good linearity, accuracy and precision under inter-operator variation (relative standard deviation <5%)...
January 14, 2017: Magnetic Resonance in Chemistry: MRC
https://www.readbyqxmd.com/read/28087978/identification-of-gonadotropin-releasing-hormone-metabolites-in-greyhound-urine
#8
David Palmer, Katie Rademaker, Ingrid Martin, Joan Hessell, Rob Howitt
Gonadotropin-releasing hormone (GnRH) is a 10-residue peptide hormone that induces secretion of luteinizing hormone (LH) and follicle-stimulating hormone into the blood from the pituitary gland. In males, LH acts on the testes to produce testosterone. The performance enhancing potential of testosterone makes administration of exogenous GnRH a concern in sports doping control. Detection of GnRH abuse is challenging owing to its rapid clearance from the body and degradation in urine. Following recent investigations of GnRH abuse in racing greyhounds in New Zealand, we carried out a GnRH administration study in greyhounds in an attempt to identify GnRH metabolites that might provide more facile detection of GnRH abuse; little information is available on in vivo metabolites of exogenous GnRH in any species and none in dogs...
January 14, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28087902/a-review-of-the-preventability-of-maternal-mortality-in-one-hospital-system-in-louisiana-usa
#9
James J Morong, Jane K Martin, Robert S Ware, Alfred G Robichaux
OBJECTIVE: To determine preventability of in-hospital maternal mortality in the Ochsner Health System (OHS) in the US state of Louisiana. METHODS: A retrospective study was undertaken of all known cases of in-hospital maternal death (during pregnancy or within 42 days of termination) that occurred within OHS facilities in 1995-2013. Associations between characteristics and mortality and preventability were investigated. Incidence rate ratios (IRRs) were calculated in view of varying reference values...
December 9, 2016: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28087761/proteomics-technologies-and-their-applications
#10
REVIEW
Bilal Aslam, Madiha Basit, Muhammad Atif Nisar, Mohsin Khurshid, Muhammad Hidayat Rasool
Proteomics involves the applications of technologies for the identification and quantification of overall proteins present content of a cell, tissue or an organism. It supplements the other "omics" technologies such as genomic and transcriptomics to expound the identity of proteins of an organism, and to cognize the structure and functions of a particular protein. Proteomics-based technologies are utilized in various capacities for different research settings such as detection of various diagnostic markers, candidates for vaccine production, understanding pathogenicity mechanisms, alteration of expression patterns in response to different signals and interpretation of functional protein pathways in different diseases...
February 2017: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/28087527/floc-formation-reduces-the-ph-stress-experienced-by-microorganisms-living-in-alkaline-environments
#11
C J Charles, S P Rout, K A Patel, S Akbar, A P Laws, B R Jackson, S A Boxall, P N Humphreys
: The survival of microorganisms within a cementitious geological disposal facility for radioactive wastes is heavily dependent on their ability to survive the calcium dominated, hyper-alkaline conditions resulting from the dissolution of the cementitious materials. The present study shows that the formation of flocs, composed of a complex mixture of extracellular polymeric substances (EPS), provides protection against alkaline pH values up to pH 13.0. The flocs were dominated by Alishewanella and Dietzia sp, producing a mannose rich carbohydrate fraction incorporating extracellular DNA, resulting in Ca(2+) sequestration...
January 13, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28087485/stepwise-targeted-drug-delivery-to-liver-cancer-cells-for-enhanced-therapeutic-efficacy-by-galactose-grafted-ultra-ph-sensitive-micelles
#12
Guoqing Yan, Jun Wang, Liefeng Hu, Xin Wang, Guanqing Yang, Shengxiang Fu, Xu Cheng, Panpan Zhang, Rupei Tang
: To promote drug accumulation and cell-killing ability at tumor tissue, we have prepared a stepwise targeted drug delivery system that can remain stealthy and long-circulating in the blood vessels, improve drug retention at extracellular stimuli, enhance cellular uptake through special targeting ligands, and then achieve rapid drug release to improve toxicity to tumor cells at intracellular stimuli. Herein, galactose-grafted, ultra-pH-sensitive drug carriers (POEAd-g-LA-DOX micelles), which could respond to both extracellular and intracellular pH, and combine with galactose-receptors in cell membrane, were constructed by a facile method, therefore achieving: (i) remaining stable at pH 7...
January 10, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28087089/point-of-care-ultrasound-diagnosis-of-posterior-sternoclavicular-joint-dislocation
#13
Rachel R Bengtzen, Ryan C Petering
BACKGROUND: Posterior sternoclavicular dislocations can be challenging diagnostically, as traumatic force often happens to the lateral shoulder rather than directly to the sternoclavicular joint. Shoulder radiographs do not illustrate the sternoclavicular joint well, and can miss the diagnosis. This injury, however, has the potential for life-threatening complications due to proximity of mediastinal structures that might also be injured. CASE REPORT: The following case illustrates a delayed diagnosis of posterior sternoclavicular dislocation...
January 10, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28086975/a-qualitative-study-of-women-s-and-health-providers-attitudes-and-acceptability-of-mistreatment-during-childbirth-in-health-facilities-in-guinea
#14
Mamadou Diouldé Balde, Abou Bangoura, Boubacar Alpha Diallo, Oumar Sall, Habibata Balde, Aïssatou Sona Niakate, Joshua P Vogel, Meghan A Bohren
BACKGROUND: Reducing maternal morbidity and mortality remains a key health challenge in Guinea. Anecdotal evidence suggests that women in Guinea are subjected to mistreatment during childbirth in health facilities, but limited research exists on this topic. This study was conducted to better understand the social norms and the acceptability of four scenarios of mistreatment during childbirth, from the perspectives of women and service providers. METHODS: This study used qualitative methods including in-depth interviews (IDIs) and focus group discussions (FGDs) with women of reproductive age, midwives, nurses and doctors...
January 13, 2017: Reproductive Health
https://www.readbyqxmd.com/read/28086910/identifying-youth-friendly-service-practices-associated-with-adolescents-use-of-reproductive-healthcare-services-in-post-conflict-burundi-a-cross-sectional-study
#15
Imelda K Moise, Jaclyn F Verity, Joseph Kangmennaang
BACKGROUND: Very little is known about reproductive health service (RHS) availability and adolescents' use of these services in post-conflict settings. Such information is crucial for targeted community interventions that aim to improve quality delivery of RHS and outcomes in post-conflict settings. The objectives of this study therefore was to examine the density of RHS availability; assess spatial patterns of RHC facilities; and identify youth-friendly practices associated with adolescents' use of services in post-conflict Burundi...
January 13, 2017: International Journal of Health Geographics
https://www.readbyqxmd.com/read/28086893/seasonal-variation-in-geographical-access-to-maternal-health-services-in-regions-of-southern-mozambique
#16
Prestige Tatenda Makanga, Nadine Schuurman, Charfudin Sacoor, Helena Edith Boene, Faustino Vilanculo, Marianne Vidler, Laura Magee, Peter von Dadelszen, Esperança Sevene, Khátia Munguambe, Tabassum Firoz
BACKGROUND: Geographic proximity to health facilities is a known determinant of access to maternal care. Methods of quantifying geographical access to care have largely ignored the impact of precipitation and flooding. Further, travel has largely been imagined as unimodal where one transport mode is used for entire journeys to seek care. This study proposes a new approach for modeling potential spatio-temporal access by evaluating the impact of precipitation and floods on access to maternal health services using multiple transport modes, in southern Mozambique...
January 13, 2017: International Journal of Health Geographics
https://www.readbyqxmd.com/read/28086871/the-integrated-care-pathway-for-post-stroke-patients-icapps-a-shared-care-approach-between-stakeholders-in-areas-with-limited-access-to-specialist-stroke-care-services
#17
Aznida Firzah Abdul Aziz, Nor Azlin Mohd Nordin, Mohd Fairuz Ali, Noor Azah Abd Aziz, Saperi Sulong, Syed Mohamed Aljunid
BACKGROUND: Lack of intersectoral collaboration within public health sectors compound efforts to promote effective multidisciplinary post stroke care after discharge following acute phase. A coordinated, primary care-led care pathway to manage post stroke patients residing at home in the community was designed by an expert panel of specialist stroke care providers to help overcome fragmented post stroke care in areas where access is limited or lacking. METHODS: Expert panel discussions comprising Family Medicine Specialists, Neurologists, Rehabilitation Physicians and Therapists, and Nurse Managers from Ministry of Health and acadaemia were conducted...
January 13, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28086869/evaluation-of-an-aged-care-nurse-practitioner-service-quality-of-care-within-a-residential-aged-care-facility-hospital-avoidance-service
#18
Trudy Dwyer, Alison Craswell, Dolene Rossi, Darren Holzberger
BACKGROUND: Reducing avoidable hospitialisation of aged care facility (ACF) residents can improve the resident experience and their health outcomes. Consequently many variations of hospital avoidance (HA) programs continue to evolve. Nurse practitioners (NP) with expertise in aged care have the potential to make a unique contribution to hospital avoidance programs. However, little attention has been dedicated to service evaluation of this model and the quality of care provided. The purpose of this study was to evaluate the quality of an aged care NP model of care situated within a HA service in a regional area of Australia...
January 13, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28086867/process-evaluation-of-an-integrated-care-pathway-in-geriatric-rehabilitation-for-people-with-complex-health-problems
#19
Irma H J Everink, Jolanda C M van Haastregt, Jose M C Maessen, Jos M G A Schols, Gertrudis I J M Kempen
BACKGROUND: An integrated care pathway in geriatric rehabilitation was developed to improve coordination and continuity of care for community-living older adults in the Netherlands, who go through the process of hospital admission, admission to a geriatric rehabilitation facility and discharge back to the home situation. This pathway is a complex intervention and is focused on improving communication, triage and transfers of patients between the hospital, geriatric rehabilitation facility and primary care organisations...
January 13, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28086864/direct-detection-of-falciparum-and-non-falciparum-malaria-dna-from-a-drop-of-blood-with-high-sensitivity-by-the-dried-lamp-system
#20
Kyoko Hayashida, Kiichi Kajino, Humphrey Simukoko, Martin Simuunza, Joseph Ndebe, Amos Chota, Boniface Namangala, Chihiro Sugimoto
BACKGROUND: Because of the low sensitivity of conventional rapid diagnostic tests (RDTs) for malaria infections, the actual prevalence of the diseases, especially those caused by non-Plasmodium falciparum (non-Pf) species, in asymptomatic populations remain less defined in countries lacking in well-equipped facilities for accurate diagnoses. Our direct blood dry LAMP system (CZC-LAMP) was applied to the diagnosis of malaria as simple, rapid and highly sensitive method as an alternative for conventional RDTs in malaria endemic areas where laboratory resources are limited...
January 13, 2017: Parasites & Vectors
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