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Zeqing Wan, Kunquan Li
A convenient effective microwave pre-pyrolysis treatment to synthesize biomass-based mesoporous carbon with higher nitrogen/oxygen-chelating adsorption for Cu(II) is reported here, in which phosphoric acid impregnated bagasse was used as a microwave absorber and porogen. For comparison, conventional electric-heating pyrolyzed carbon was prepared and doped with nitrogen/oxygen groups. Nitrogen adsorption, scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy (XPS) and batch adsorption were employed to investigate the effects of the two pre-pyrolysis modes on the sample physicochemical and Cu(II) adsorptive properties...
December 1, 2017: Chemosphere
Pierre Hennebert
Different ecotoxicological test batteries and concentration limits have been proposed to assess the hazard property (HP) HP 14 'Ecotoxic' for waste in the European Union and its member states. In test batteries, if the concentration of waste in the culture/dilution medium producing 50% of inhibitory biological effect in one or more test(s) is below the concentration limit of the test, the waste is classified as hazardous. A summarized review of the test batteries proposed since 1998 is presented. The last proposed test battery uses seven aquatic and terrestrial species with standardized methods, but with options and uniform concentration limits of 10% of waste eluate or solid waste in the culture/dilution medium...
December 5, 2017: Waste Management
Maen Aboul Hosn, Paolo Goffredo, Jeffrey Zavala, William J Sharp, Neelima Katragunta, Timothy Kresowik, Rachael Nicholson, Luigi Pascarella
OBJECTIVES: Uncomplicated type B dissections have historically been treated medically with hemodynamic control. Early progression of the disease and late aneurysmal dilation have been considered as indications for intervention. The aim of this study is to analyze growth rate patterns of type B dissections based on Computed Tomography measurements over time. METHODS: We conducted a retrospective review of patients with acute type B dissection from 2008 to 2014 who had at least two follow up CT scans...
December 4, 2017: Annals of Vascular Surgery
Kuo Gao, Huihui Zhao, Jian Gao, Binyu Wen, Caixia Jia, Zhiyong Wang, Feilong Zhang, Jinping Wang, Hua Xie, Juan Wang, Wei Wang, Jianxin Chen
Chronic heart failure (CHF) is a major public health problem in huge population worldwide. The detailed understanding of CHF mechanism is still limited. Zheng (syndrome) is the criterion of diagnosis and therapeutic in Traditional Chinese Medicine (TCM). Syndrome prediction may be a better approach for understanding of CHF mechanism basis and its treatment. The authors studied disturbed metabolic biomarkers to construct a predicting mode to assess the diagnostic value of different syndrome of CHF and explore the Chinese herbal medicine (CHM) efficacy on CHF patients...
2017: Frontiers in Pharmacology
Subhasish Mallick, Saptarshi Sarkar, Pradeep Kumar, Biman Bandyopadhyay
Quantum chemical calculations at QCISD and CCSD(T) levels of theory have been performed to investigate the effect of NH 3 and HCO 2 H on the reaction between OH • and HCl. Potential energy profiles indicate that both NH 3 and HCO 2 H catalyzed reac- tion could proceed through two different channels, namely single and double hydrogen atom transfer. Theoretically calculated rate constants for both the catalysts show that both NH3 and HCO2 H catalyzed channels prefer single hydrogen atom transfer path. Besides, both NH3 and HCO2 H catalyzed path have higher rate constant values as compared to water catalyzed path...
December 6, 2017: Journal of Physical Chemistry. A
Cara L Wallace, Gail Adorno, Daniel B Stewart
BACKGROUND: Due to large number of deaths occurring in nursing home (NH) settings, along with reports of pain and suffering, there is great need for improvements in the provision of end-of-life (EOL) care in NHs. OBJECTIVE: The aim of this study was to develop a comprehensive understanding of the experience of dying in NHs through the perspective of residents, family, and facility staff. DESIGN: This study uses a qualitative interpretive meta-synthesis to provide a holistic view of EOL care in NHs across multiple qualitative studies...
December 6, 2017: Journal of Palliative Medicine
Di Zhang, Xingxiang Wang, Zhigao Zhou
Industrialized small-scale pig farming has been rapidly developed in developing regions such as China and Southeast Asia, but the environmental problems accompanying pig farming have not been fully recognized. This study investigated 168 small-scale pig farms and 29 example pig farms in Yujiang County of China to examine current and potential impacts of pig wastes on soil, water and crop qualities in the hilly red soil region, China. The results indicated that the small-scale pig farms produced considerable annual yields of wastes, with medians of 216, 333 and 773 ton yr-1 per pig farm for manure, urine and washing wastewater, respectively, which has had significant impact on surface water quality...
December 6, 2017: International Journal of Environmental Research and Public Health
Federica Trucco, Marina Pedemonte, Chiara Fiorillo, Hui-Leng Tan, Annalisa Carlucci, Giacomo Brisca, Paola Tacchetti, Claudio Bruno, Carlo Minetti
Objective Nocturnal hypoventilation (NH) is a complication of respiratory involvement in neuromuscular disorders (NMD) that can evolve into symptomatic daytime hypercapnia if not treated proactively with non-invasive ventilation. This study aimed to assess whether NH can be detected in the absence of other signs of nocturnal altered gas exchange. Methods We performed nocturnal transcutaneous coupled (tc) pCO2/SpO2 monitoring in 46 consecutive cases of paediatric-onset NMD with a restrictive respiratory defect (forced vital capacity < 60%)...
January 1, 2017: Journal of International Medical Research
Yoshiaki Iwase, Yoji Horie, Yusuke Daiko, Sawao Honda, Yuji Iwamoto
A novel polyethoxysilsesquiazane ([EtOSi(NH)1.5]n, EtOSZ) was synthesized by ammonolysis at -78 °C of ethoxytrichlorosilane (EtOSiCl₃), which was isolated by distillation as a reaction product of SiCl₄ and EtOH. Attenuated total reflection-infra red (ATR-IR), 13C-, and 29Si-nuclear magnetic resonance (NMR) spectroscopic analyses of the ammonolysis product resulted in the detection of Si-NH-Si linkage and EtO group. The simultaneous thermogravimetric and mass spectrometry analyses of the EtOSZ under helium revealed cleavage of oxygen-carbon bond of the EtO group to evolve ethylene as a main gaseous species formed in-situ, which lead to the formation at 800 °C of quaternary amorphous Si-C-N with an extremely low carbon content (1...
December 5, 2017: Materials
Latyr Diouf, Zhaoe Pan, Shou-Pu He, Wen-Fang Gong, Yin Hua Jia, Richard Odongo Magwanga, Kimbembe Romesh Eric Romy, Harun Or Rashid, Joy Nyangasi Kirungu, Xiongming Du
Over 6% of agricultural land is affected by salinity. It is becoming obligatory to use saline soils, so growing salt-tolerant plants is a priority. To gain an understanding of the genetic basis of upland cotton tolerance to salinity at seedling stage, an intra-specific cross was developed from CCRI35, tolerant to salinity, as female with Nan Dan (NH), sensitive to salinity, as the male. A genetic map of 5178 SNP markers was developed from 277 F2:3 populations. The map spanned 4768.098 cM, with an average distance of 0...
December 5, 2017: International Journal of Molecular Sciences
Esteban Reynaga, Carmen Torres, Marian Garcia-Nuñez, Marian Navarro, Anna Vilamala, Emma Puigoriol, Gianni Enrico Lucchetti, Daniella Nunes, Adriana Silva, Miquel Sabrià
MRSA nasal carriage was detected in 15.7% of 204 residents from 6 nursing homes (NHs) in the Osona region (Barcelona, Spain), and the MRSA-ST398 lineage was identified in 15.6% of MRSA-positive residents and in 2.5% of all NH residents evaluated. Most MRSA-ST398 carriers (4 of 5) had direct or indirect contact with pig farms. Infect Control Hosp Epidemiol 2017;1-4.
December 5, 2017: Infection Control and Hospital Epidemiology
Natalya I Medvedeva, Oxana B Kazakova, Tatyana V Lopatina, Irina E Smirnova, Gul'nara V Giniyatullina, Irina P Baikova, Vladimir E Kataev
A series of A-ring azepanones and azepanes derived from betulonic, oleanonic and ursonic acids was synthesized and evaluated for their in vitro antimycobacterial activities against M. tuberculosis (MTB) H37Rv and SDR-TB in the National Institute of Allergy and Infectious Diseases. Triterpenic A-azepano-28-hydroxy-derivatives were synthesized by the reduction with LiAlH4 of triterpenic azepanones available from the Beckmann rearrangement of the corresponding C3-oximes. Modification of azepanes at NH-group and atoms С12, C20, C28 and C29 of triterpenic core led to the derivatives with oxo, epoxy, aminopropyl, oximino and acyl substituents...
November 21, 2017: European Journal of Medicinal Chemistry
Ihsan Erden, Christian Gärtner, Jingxiang Ma, Gabriel Cabrera, Kate Markham, Saeed Azimi, Scott Gronert
Aldonitrones derived from spiro[2.4]hepta-4,6-diene-1-carbaldehyde and its benzo analog undergo a tandem uncatalyzed intramolecular cyclopropane-nitrone cyclization-5,6-dihydro-1,2-oxazine cycloreversion to give cyclopentadienones. Similarly, the NH-nitrone generated in situ from spiro[cyclopropane-1,1'-indene]carbaldehyde oxime leads to benzocyclopentadienone (1H-inden-1-one) by the same mechanism. DFT calculations are in favor of a concerted yet highly asynchronous pathway for the cyclizations. Control experiments with the dihydro and tetrahydro derivatives show that the spirocyclopentadiene unit is essential for the success of the reaction, invoking spiroconjugative effects for increased cyclopropane reactivity...
September 15, 2017: European Journal of Organic Chemistry
Irene Røen, Øyvind Kirkevold, Ingelin Testad, Geir Selbæk, Knut Engedal, Sverre Bergh
BACKGROUND: Person-centered care (PCC) is regarded as good quality care for persons with dementia. This study aimed to explore and understand the association between PCC and organizational, staff and unit characteristics in nursing homes (NHs). METHODS: Staff from 175 NH units in Norway (n = 1,161) completed a survey, including measures of PCC and questions about staff characteristics and work-related psychosocial factors. In addition, data about organizational and structural factors and assessment of the physical environment in the units were obtained...
December 4, 2017: International Psychogeriatrics
D Nancy, N Rajendran
The obstacles faced to treat chronic osteomyelitis infection clinically led to the search for an ideal biomaterial, resulted in combining two major aspects of bone tissue engineering namely surface modified metallic implant and polymer nanocomposite scaffold. In the present study Gelatin - Strontium incorporated Hydroxyapatite (SrHAP) forming HG scaffold, vancomycin loaded chitosan -gelatin polyelectrolyte complex incorporated gelatin-SrHAP, forming HV scaffolds (HV1-0.5wt% and HV2-1wt% vancomycin) were investigated...
November 29, 2017: International Journal of Biological Macromolecules
Michelle S Wong, Kitty S Chan, Jessica C Jones-Smith, Elizabeth Colantuoni, Roland J Thorpe, Sara N Bleich
Neighborhood characteristics have been associated with obesity, but less is known whether relationships vary by race/ethnicity. This study examined the relationship between soda consumption - a behavior strongly associated with obesity - and weight status with neighborhood sociodemographic, social, and built environments by race/ethnicity. We merged data on adults from the 2011-2013 California Health Interview Survey, U.S. Census data, and InfoUSA (n=62,396). Dependent variables were soda consumption and weight status outcomes (body mass index and obesity status)...
November 29, 2017: Preventive Medicine
Vikas Singh, Rodrigo Mendirichaga, Ghanshyambhai T Savani, Alex Rodriguez, Vanessa Blumer, Sammy Elmariah, Ignacio Inglessis-Azuaje, Igor Palacios
Native heart endomyocardial biopsy (NH-EMB) is an infrequently performed procedure. The objective of this study is to describe utilization trends, indications, and complications associated with NH-EMB in the United States and compare them with transplanted heart endomyocardial biopsy (TH-EMB). Using the Healthcare Cost and Utilization Project National Inpatient Sample database, we identified 71,105 adult patients undergoing EMB in the inpatient setting in participating hospitals from 2002 to 2014. A total of 20,770 (29%) were performed on NHs (mean age 52...
October 31, 2017: American Journal of Cardiology
Johannes Zaar, Nicola Schmitt, Ralph-Peter Derleth, Mishaela DiNino, Julie G Arenberg, Torsten Dau
This study investigated the influence of hearing-aid (HA) and cochlear-implant (CI) processing on consonant perception in normal-hearing (NH) listeners. Measured data were compared to predictions obtained with a speech perception model [Zaar and Dau (2017). J. Acoust. Soc. Am. 141, 1051-1064] that combines an auditory processing front end with a correlation-based template-matching back end. In terms of HA processing, effects of strong nonlinear frequency compression and impulse-noise suppression were measured in 10 NH listeners using consonant-vowel stimuli...
November 2017: Journal of the Acoustical Society of America
Sandra Sarmento, Joana S Pereira, Maria José Sousa, Luís T Cunha, Anabela G Dias, Miguel F Pereira, Augusto D Oliveira, João V Cardoso, Luís M Santos, João A M Santos, João G Alves
PURPOSE: The purpose of this study was to evaluate the efficacy of needle holders in reducing staff hand exposure during biopsies guided by computed tomography fluoroscopy (CTF), through the analysis of data acquired during a detailed monitoring study, undertaken in parallel with an ongoing optimization process to reduce hand irradiation. METHODS: Hand monitoring was performed with 11 extremity detectors, two per finger (base and tip) and one on the back of the wrist, for the left (dominant) hand, during two series of biopsies with comparable characteristics...
November 29, 2017: Journal of Applied Clinical Medical Physics
Yang Wang, Jiancheng Di, Li Wang, Xu Li, Ning Wang, Baixian Wang, Ye Tian, Lei Jiang, Jihong Yu
In Table 1 of this Article, the third row in the furthest right column contains a typographical error and should read 'NH', rather than 'NM', corresponding to n-hexane as the infused liquid.
November 30, 2017: Nature Communications
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