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https://www.readbyqxmd.com/read/28938216/efficient-removal-of-priority-hazardous-priority-and-emerging-pollutants-with-prunus-armeniaca-functionalized-biochar-from-aqueous-wastes-experimental-optimization-and-modeling
#1
Maja Turk Sekulić, Sabolč Pap, Zoran Stojanović, Nikola Bošković, Jelena Radonić, Tatjana Šolević Knudsen
This paper investigates the ability of the phosphoric acid functionalized Prunus armeniaca stones biochar (AsPhA) prepared by thermochemical activation to remove lead (Pb(2+)), cadmium (Cd(2+)), nickel (Ni(2+)), naproxen and chlorophenols from aqueous wastes. The engineered biochar was characterized using the Scanning Electron Microscopy, Energy-dispersive X-ray Spectroscopy, Fourier Transform Infrared Spectroscopy and Brunauer, Emmett and Teller technique. The batch studies were performed by varying the initial pH of the solution (2-9), adsorbent dosage (0...
September 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28938087/emerging-opportunities-for-target-discovery-in-rare-cancers
#2
REVIEW
Tanaz Sharifnia, Andrew L Hong, Corrie A Painter, Jesse S Boehm
Rare cancers pose unique challenges to research due to their low incidence. Barriers include a scarcity of tissue and experimental models to enable basic research and insufficient patient accrual for clinical studies. Consequently, an understanding of the genetic and cellular features of many rare cancer types and their associated vulnerabilities has been lacking. However, new opportunities are emerging to facilitate discovery of therapeutic targets in rare cancers. Online platforms are allowing patients with rare cancers to organize on an unprecedented scale, tumor genome sequencing is now routinely performed in research and clinical settings, and the efficiency of patient-derived model generation has improved...
September 21, 2017: Cell Chemical Biology
https://www.readbyqxmd.com/read/28937749/heterooctamolybdate-based-clusters-h3-cp-rh-4pmo8o32-and-h5-na2-cp-ir-4pmo8o34-and-derived-hybrid-nanomaterials-with-efficient-electrocatalytic-hydrogen-evolution-reaction-activity
#3
Vikram Singh, Pengtao Ma, Michael G B Drew, Jingyang Niu, Jingping Wang, Guo-Xin Jin
Polyoxometalates (POMs), emerging as a new class of porous molecular materials, play a promising role in homo- and heterogeneous catalysis. Among them, noble-metal-decorated POMs have a profound impact as catalytic materials. Thus, it is imperative to design and structurally explore new catalysts including noble metals. Herein, two new clusters, H3[(Cp*Rh)4PMo8O32]·14H2O (1) and H5[Na2(Cp*Ir)4PMo8O34]·13H2O (2) (Cp* = pentamethylcyclopentadienyl), based on a heterooctamolybdate anionic core were successfully obtained via a one-pot reaction using [Cp*MCl2]2 [M = Rh (1) and Ir (2)] and Na2MoO4 in acidic conditions...
September 22, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28936730/exosomes-nanocarriers-of-biological-messages
#4
Alice Conigliaro, Simona Fontana, Stefania Raimondo, Riccardo Alessandro
Cell-cell communication is crucial to maintain homeostasis in multicellular organism. Cells communicate each other by direct contact or by releasing factors that, soluble or packaged in membrane vesicles, can reach different regions of the organism. To date numerous studies highlighted the existence of several types of extracellular vesicles that, differing for dimension, origin and contents, play a role in physiological and/or pathological processes. Among extracellular vesicles, exosomes are emerging as efficient players to modulate target cells phenotype and as new non-invasive diagnostic and prognostic tools in multiple diseases...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28936475/surgical-data-science-the-new-knowledge-domain
#5
S Swaroop Vedula, Gregory D Hager
Healthcare in general, and surgery/interventional care in particular, is evolving through rapid advances in technology and increasing complexity of care with the goal of maximizing quality and value of care. While innovations in diagnostic and therapeutic technologies have driven past improvements in quality of surgical care, future transformation in care will be enabled by data. Conventional methodologies, such as registry studies, are limited in their scope for discovery and research, extent and complexity of data, breadth of analytic techniques, and translation or integration of research findings into patient care...
April 2017: Innov Surg Sci
https://www.readbyqxmd.com/read/28936277/self-limiting-adsorption-of-wo3-oligomers-on-oxide-substrates-in-solution
#6
Matthias Müllner, Jan Balajka, Michael Schmid, Ulrike Diebold, Stijn F L Mertens
Electrochemical surface science of oxides is an emerging field with expected high impact in developing, for instance, rationally designed catalysts. The aim in such catalysts is to replace noble metals by earth-abundant elements, yet without sacrificing activity. Gaining an atomic-level understanding of such systems hinges on the use of experimental surface characterization techniques such as scanning tunneling microscopy (STM), in which tungsten tips have been the most widely used probes, both in vacuum and under electrochemical conditions...
September 14, 2017: Journal of Physical Chemistry. C, Nanomaterials and Interfaces
https://www.readbyqxmd.com/read/28935883/ex-vivo-expanded-human-nk-cells-survive-and-proliferate-in-humanized-mice-with-autologous-human-immune-cells
#7
Fatemeh Vahedi, Tina Nham, Sophie M Poznanski, Marianne V Chew, Mira M Shenouda, Dean Lee, Ali A Ashkar
Adoptive immune cell therapy is emerging as a promising immunotherapy for cancer. Particularly, the adoptive transfer of NK cells has garnered attention due to their natural cytotoxicity against tumor cells and safety upon adoptive transfer to patients. Although strategies exist to efficiently generate large quantities of expanded NK cells ex vivo, it remains unknown whether these expanded NK cells can persist and/or proliferate in vivo in the absence of exogenous human cytokines. Here, we have examined the adoptive transfer of ex vivo expanded human cord blood-derived NK cells into humanized mice reconstituted with autologous human cord blood immune cells...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28935212/the-value-of-anticoccidials-for-sustainable-global-poultry-production
#8
REVIEW
Stefanie Kadykalo, Tara Roberts, Michelle Thompson, Jeff Wilson, Marcelo Lang, Olivier Espeisse
Coccidiosis is a self-limiting disease that is universally present in poultry operations, causing extensive damage to the intestinal lining of the bird. Global economic losses from coccidiosis are estimated to be $3 billion per year. In-feed anticoccidial use has been the predominant form of coccidiosis control. However, due to widespread emergence of antimicrobial resistance, concerns have been raised regarding the safety of anticoccidials and potential impact on human, animal, and environmental health. To investigate the alternatives, risks, and benefits to anticoccidial use, a comprehensive review of recent literature was conducted...
September 18, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28934645/graphene-a-new-activator-of-sodium-persulfate-for-the-advanced-oxidation-of-parabens-in-water
#9
Leonidas Bekris, Zacharias Frontistis, George Trakakis, Lamprini Sygellou, Costas Galiotis, Dionissios Mantzavinos
Graphene was successfully employed as a catalyst for the activation of sodium persulfate, towards the effective degradation of propylparaben, an emerging micro-pollutant, representative of the parabens family. A novel process is proposed which utilizes a commercial graphene nano-powder as the catalyst and sodium persulfate as the oxidizing agent. It was found that over 95% of micro-pollutant degradation occurs within 15 min of reaction time. The effects of catalyst loading (75 mg/L to 1 g/L), sodium persulfate (SPS) concentration (10 mg/L to 1 g/L), initial solution pH (3-9) and initial paraben concentration (0...
September 13, 2017: Water Research
https://www.readbyqxmd.com/read/28934608/chemical-free-fabrication-of-n-p-dual-doped-honeycomb-like-carbon-as-an-efficient-electrocatalyst-for-oxygen-reduction
#10
Lianwen Zhu, Jun Wu, Qiao Zhang, Xiangkui Li, Yiming Li, Xuebo Cao
Heteroatom-doped nanoporous carbons are now emerging as alternatives to platinum and its alloys as electrocatalysts to facilitate oxygen reduction reaction in metal-air batteries and fuel cells. However, the synthesis of nanoporous carbons usually involve in complicated procedures and intensive chemicals, which may dramatically raise their manufacture cost that even surpasses that of precious platinum. Herein, we demonstrate the single-step, chemical-free fabrication of N, P dualdoped honeycomb carbon that has hierarchically porous structure and oxygen electrocatalysis activity close to the benchmark Pt/C...
August 23, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28933843/cspb0-9sn0-1ibr2-based-all-inorganic-perovskite-solar-cells-with-exceptional-efficiency-and-stability
#11
Jia Liang, Peiyang Zhao, Caixing Wang, Yanrong Wang, Yi Hu, Guoyin Zhu, Lianbo Ma, Jie Liu, Zhong Jin
The emergence of perovskite solar cells (PSCs) has generated enormous interests in the photovoltaic research community. Recently, cesium metal halides (CsMX3, M = Pb or Sn; X = I, Br, Cl or mixed halides) as a class of inorganic perovskites showed great promise for PSCs and other optoelectronic devices. However, CsMX3-based PSCs usually exhibit lower power conversion efficiencies (PCEs) than organic-inorganic hybrid PSCs, due to the unfavorable bandgaps. Herein, a novel mixed-Pb/Sn mixed-halide inorganic perovskite, CsPb0...
September 21, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28933367/targeting-metabolic-modulation-and-mitochondrial-dysfunction-in-the-treatment-of-heart-failure
#12
REVIEW
Abbey Steggall, Ify R Mordi, Chim C Lang
Despite significant improvements in morbidity and mortality with current evidence-based pharmaceutical-based treatment of heart failure (HF) over the previous decades, the burden of HF remains high. An alternative approach is currently being developed, which targets myocardial energy efficiency and the dysfunction of the cardiac mitochondria. Emerging evidence suggests that the insufficient availability of ATP to the failing myocardium can be attributed to abnormalities in the myocardial utilisation of its substrates rather than an overall lack of substrate availability...
May 10, 2017: Diseases (Basel)
https://www.readbyqxmd.com/read/28933283/organic-nanotheranostics-for-photoacoustic-imaging-guided-phototherapy
#13
Houjuan Zhu, Chen Xie, Peng Chen, Kanyi Pu
Phototherapies including photothermal therapy (PTT) and photodynamic therapy (PDT) have emerged as one of the avant-garde strategies for cancer treatment. Photoacoustic (PA) imaging is a new hybrid imaging modality that shows great promise for real-time in vivo monitoring of biological processes with deep tissue penetration and high spatial resolution. To enhance therapeutic efficiency and reduce side effects, it is necessary to explore the combination of cancer therapy and diagnosis. Nanotheranostics composed of PTT/PDT and PA imaging are emerging to provide unprecedented advantages in accelerating cancer theranostics...
September 20, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28932162/are-nurses-verbally-abused-a-cross-sectional-study-of-nurses-at-a-university-hospital-eastern-province-saudi-arabia
#14
Nouf A Al-Shamlan, Nithya Jayaseeli, Moneera M Al-Shawi, Abdullah S Al-Joudi
BACKGROUND: Workplace violence against health-care workers is a significant problem worldwide. Nurses are at a higher risk of exposure to violence. Studies available in Saudi Arabia are few. OBJECTIVES: The objective of the study was to estimate the prevalence of verbal abuse of nurses at King Fahd Hospital of the University (KFHU) in Khobar, Saudi Arabia, and to identify consequences and the demographic and work-related characteristics associated with it. MATERIALS AND METHODS: This cross-sectional study of 391 nurses by total sample was conducted between November and December 2015, using a modified self-administered questionnaire developed by the World Health Organization...
September 2017: Journal of Family & Community Medicine
https://www.readbyqxmd.com/read/28932150/comparison-of-quality-of-obturation-and-instrumentation-time-using-hand-files-and-two-rotary-file-systems-in-primary-molars-a-single-blinded-randomized-controlled-trial
#15
Lavanya Govindaraju, Ganesh Jeevanandan, E M G Subramanian
OBJECTIVE: In permanent dentition, different rotary systems are used for canal cleaning and shaping. Rotary instrumentation in pediatric dentistry is an emerging concept. A very few studies have compared the efficiency of rotary instrumentation for canal preparation in primary teeth. Hence, this study was performed to compare the obturation quality and instrumentation time of two rotary files systems - Protaper, Mtwo with hand files in primary molars. MATERIALS AND METHODS: Forty-five primary mandibular molars were randomly allotted to one of the three groups...
July 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28931836/matching-dmft-calculations-with-photoemission-spectra-of-heavy-fermion-insulators-universal-properties-of-the-near-gap-spectra-of-smb6
#16
Chul-Hee Min, F Goth, P Lutz, H Bentmann, B Y Kang, B K Cho, J Werner, K-S Chen, F Assaad, F Reinert
Paramagnetic heavy fermion insulators consist of fully occupied quasiparticle bands inherent to Fermi liquid theory. The gap emergence below a characteristic temperature is the ultimate sign of coherence for a many-body system, which in addition can induce a non-trivial band topology. Here, we demonstrate a simple and efficient method to compare a model study and an experimental result for heavy fermion insulators. The temperature dependence of the gap formation in both local moment and mixed valence regimes is captured within the dynamical mean field (DMFT) approximation to the periodic Anderson model (PAM)...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28930346/one-pot-solution-synthesis-of-shape-controlled-copper-selenide-nanostructures-and-their-potential-applications-in-photocatalysis-and-photothermal-therapy
#17
Xianwen Wang, Zhaohua Miao, Yan Ma, Huajian Chen, Haisheng Qian, Zhengbao Zha
Developing a facile and reliable method for the fabrication of transition metal chalcogenides is a vital and endless pursuit of scientific and technological disciplines. In this work, we develop a one-pot solution approach to obtain copper selenide nanostructures with different morphologies and crystal structures (Cu2Se nanoparticles, CuSe nanoplates and CuSe2 nanosheets). In comparison to previously reported methods, our method did not use expensive and very toxic raw materials. After detailed studies of reaction conditions, including temperature, reaction time, and feeding amount of surfactants and precursors, we found that the feeding ratio of precursors played a key role in the crystal structures and morphologies of the final products...
September 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28929901/the-dementia-friendly-emergency-department-an-innovation-to-reducing-incompatibilities-at-the-local-level
#18
Belinda Parke, Kathleen F Hunter
Emergency Departments (EDs) are an integral part of the Canadian healthcare system. Older people living with dementia challenge EDs. They have complex health profiles that pose multiple challenges for staff. The current one-size-fits-all approach that aids efficiency in a technologically dependent hospital setting may not always serve older people living with dementia, their caregivers, or staff well. The premise that older people living with dementia are a problem for Canadian EDs must be reconsidered. Understanding the complexity of the situation is aided by the dementia-friendly ED framework...
January 2017: Healthcare Management Forum
https://www.readbyqxmd.com/read/28929881/high-reliability-in-healthcare-creating-the-culture-and-mindset-for-patient-safety
#19
Bonnie S Cochrane, Mitch Hagins, Gino Picciano, John A King, David A Marshall, Brian Nelson, Craig Deao
Occurrences of patient harm in healthcare represent a significant burden, with serious implications for patients and families and for the capacity of health systems to manage patient access, flow, and wait times. Interest in the science of high reliability, developed originally in industries such as commercial airlines that have demonstrated exceptional safety records, is an emerging trend in healthcare with the potential to help organizations and systems achieve the ultimate goal of zero patient harm. This article argues that zero patient harm is a fundamental imperative, and that high-reliability science can help to accelerate and sustain progress toward this vital goal...
March 2017: Healthcare Management Forum
https://www.readbyqxmd.com/read/28929756/fragment-based-discovery-and-optimization-of-enzyme-inhibitors-by-docking-of-commercial-chemical-space
#20
Axel Rudling, Robert Gustafsson, Ingrid Almlöf, Evert J Homan, Martin Scobie, Ulrika Warpman Berglund, Thomas Helleday, Pål Stenmark, Jens Carlsson
Fragment-based lead discovery has emerged as a leading drug development strategy for novel therapeutic targets. Despite that fragment-based drug discovery benefits immensely from access to atomic-resolution information, structure-based virtual screening has rarely been used to drive fragment discovery and optimization. Here, molecular docking of 0.3 million fragments to a crystal structure of cancer target MTH1 was performed. Twenty-two predicted fragment ligands, for which analogs could be acquired commercially, were experimentally evaluated...
September 20, 2017: Journal of Medicinal Chemistry
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