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https://www.readbyqxmd.com/read/28544937/recycling-metals-from-lithium-ion-battery-by-mechanical-separation-and-vacuum-metallurgy
#1
Jiefeng Xiao, Jia Li, Zhengming Xu
The large-batch application of lithium ion batteries leads to the mass production of spent batteries. So the enhancement of disposal ability of spent lithium ion batteries is becoming very urgent. This study proposes an integrated process to handle bulk spent lithium manganese (LiMn2O4) batteries to in situ recycle high value-added products without any additives. By mechanical separation, the mixed electrode materials mainly including binder, graphite and LiMn2O4 are firstly obtained from spent batteries. Then, the reaction characteristics for the oxygen-free roasting of mixed electrode materials are analyzed...
May 17, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28544781/pd-nanoparticles-immobilized-on-individual-calcium-carbonate-plate-derived-from-mussel-shell-waste-an-eco-friendly-catalyst-for-copper-free-sonogashira-coupling-reaction
#2
Trin Saetan, Chutiparn Lertvachirapaiboon, Ekgasit Sanong, Mongkol Sukwattanasinitt, Sumrit Wacharasindhu
Conversion of waste into high value materials has been considered an important sustainability strategy in modern chemical industries. Large volume of shell waste is generated globally from mussel cultivation. In this work, mussel shell wastes (Perna viridis) are transformed into individual calcium carbonate plate (ICCP) and apply as a support for heterogeneous catalyst. Palladium nanoparticles (3-6 nm) are deposited with even dispersion on ICCP surface as demonstrated by X-ray diffraction and scanning electron microscopy...
May 22, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28542308/lipid-content-and-fatty-acid-composition-of-porosira-glacialis-and-attheya-longicornis-in-response-to-carbon-dioxide-co2-aeration
#3
E Y Artamonova, T Vasskog, H C Eilertsen
In the current study two novel psychrophilic diatoms Porosira glacialis and Attheya longicornis were tested for suitability to CO2 mitigation coupled with production of the physiologically requisite omega- 3 fatty acids. This study is in line with the worldwide conducted research aimed at applying biorefinery concept to heavy polluting industries. Since the production of algal high value compounds, i.e. essential fatty acids, relies on utilization of residual CO2 emissions coming from industry, the costs of such production maybe substantially reduced...
2017: PloS One
https://www.readbyqxmd.com/read/28542184/estimation-of-the-cost-effectiveness-of-hiv-prevention-portfolios-for-people-who-inject-drugs-in-the-united-states-a-model-based-analysis
#4
Cora L Bernard, Douglas K Owens, Jeremy D Goldhaber-Fiebert, Margaret L Brandeau
BACKGROUND: The risks of HIV transmission associated with the opioid epidemic make cost-effective programs for people who inject drugs (PWID) a public health priority. Some of these programs have benefits beyond prevention of HIV-a critical consideration given that injection drug use is increasing across most United States demographic groups. To identify high-value HIV prevention program portfolios for US PWID, we consider combinations of four interventions with demonstrated efficacy: opioid agonist therapy (OAT), needle and syringe programs (NSPs), HIV testing and treatment (Test & Treat), and oral HIV pre-exposure prophylaxis (PrEP)...
May 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28541023/correlation-between-biological-characteristics-of-thrombus-and-short-term-efficiency-of-thrombolytic-therapy-by-acoustic-radiation-force-impulse-imaging-technique
#5
Xiaolei Yi, Caifang Ni, Mingming Li, Qiong Wu, Yi Li
BACKGROUND: Evaluate the biological characteristics of lower extremity deep venous thrombosis by applying acoustic radiation force impulse imaging technique(ARFI), explore the correlation between the value of shear wave speed (SWV) and short-term efficacy of thrombolytic therapy as well as analyze the application value of shear wave velocity in predicting the short-term efficacy of thrombolytic therapy. METHODS: Examine acoustic radiation force impulse imaging for 120 patients with lower extremity deep venous thrombosis and measure the shear wave velocity values...
May 24, 2017: International Angiology: a Journal of the International Union of Angiology
https://www.readbyqxmd.com/read/28540832/concerning-ct-features-used-to-select-patients-for-treatment-of-peritoneal-metastases-a-pictoral-essay
#6
Paul H Sugarbaker, Armando Sardi, Gina Brown, Clarisse Dromain, Pascal Rousset, James S Jelinek
BACKGROUND: During the Fifth International Workshop on Peritoneal Surface Malignancy in Milan in 2008, a consensus was reached that contrast-enhanced CT (ceCT) was the principal imaging modality for patients being evaluated for treatment of peritoneal metastases. This fact being accepted, the radiologic criteria for that may exclude patients from a high value cytoreductive surgery (CRS) plus hyperthermic perioperative chemotherapy (HIPEC) have not been reliably determined. METHODS: From a consensus of surgeons and radiologists, radiologic images were selected and their determinant radiologic characteristics described...
April 9, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28540762/wall-shear-stress-and-near-wall-flows-in-the-stenosed-femoral-artery
#7
T Barber
Stenotic artery hemodynamics are often characertised by metrics including oscillatory shear index (OSI) and residence time (RT). This analysis was conducted to clarify the link between the near-wall flow behaviour and these resultant flow metrics. A computational simulation was conducted of a stenosed femoral artery, with an idealised representative geometry and a physiologically realistic inlet profile. The overall flow behaviour was characterised through consideration of the axial flow, which was non-dimensionalised against mean flow velocity...
May 25, 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28540631/efficient-environmentally-friendly-and-specific-valorization-of-lignin-promising-role-of-non-radical-lignolytic-enzymes
#8
REVIEW
Wenya Wang, Chao Zhang, Xinxiao Sun, Sisi Su, Qiang Li, Robert J Linhardt
Lignin is the second most abundant bio-resource in nature. It is increasingly important to convert lignin into high value-added chemicals to accelerate the development of the lignocellulose biorefinery. Over the past several decades, physical and chemical methods have been widely explored to degrade lignin and convert it into valuable chemicals. Unfortunately, these developments have lagged because of several difficulties, of which high energy consumption and non-specific cleavage of chemical bonds in lignin remain the greatest challenges...
June 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28539122/an-inference-method-from-multi-layered-structure-of-biomedical-data
#9
Myungjun Kim, Yonghyun Nam, Hyunjung Shin
BACKGROUND: Biological system is a multi-layered structure of omics with genome, epigenome, transcriptome, metabolome, proteome, etc., and can be further stretched to clinical/medical layers such as diseasome, drugs, and symptoms. One advantage of omics is that we can figure out an unknown component or its trait by inferring from known omics components. The component can be inferred by the ones in the same level of omics or the ones in different levels. METHODS: To implement the inference process, an algorithm that can be applied to the multi-layered complex system is required...
May 18, 2017: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/28538414/clinical-predictors-for-the-manifestation-of-late-gadolinium-enhancement-after-acute-myocardial-infarction
#10
Nadine Abanador-Kamper, Lars Kamper, Marc Vorpahl, Hilmar Brinkmann, Vasiliki Karamani, Patrick Haage, Melchior Seyfarth
Despite prompt revascularization, some patients with acute myocardial infarction (AMI) develop myocardial scars, which can be visualized by late gadolinium enhancement (LGE) in cardiovascular magnetic resonance imaging (CMR). Our goal was to identify angiographic findings that were predictive for scar development in patients after reperfused AMI.We examined 136 patients after first ST-elevated myocardial infarction by CMR after a median of 4 days (range: 2-7). Patients with manifestation of LGE were matched to patients without LGE by means of age and gender...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28537276/magnetic-field-induced-multiple-topological-phases-in-pyrochlore-iridates-with-mott-criticality
#11
Kentaro Ueda, Taekoo Oh, Bohm-Jung Yang, Ryoma Kaneko, Jun Fujioka, Naoto Nagaosa, Yoshinori Tokura
The interplay between electron correlation and spin-orbit coupling in solids has been proven to be an abundant gold mine for emergent topological phases. Here we report the results of systematic magnetotransport study on bandwidth-controlled pyrochlore iridates R2Ir2O7 near quantum metal-insulator transition (MIT). The application of a magnetic field along [001] crystallographic direction (H//[001]) significantly decreases resistivity while producing a unique Hall response, which indicates the emergence of the novel semi-metallic state in the course of the magnetic transformation from all-in all-out (AIAO, 4/0) to 2-in 2-out (2/2) spin configuration...
May 24, 2017: Nature Communications
https://www.readbyqxmd.com/read/28537035/characteristics-of-columnar-aerosol-optical-and-microphysical-properties-retrieved-from-the-sun-photometer-and-its-impact-on-radiative-forcing-over-skukuza-south-africa-during-1999-2010
#12
Ayodele Joseph Adesina, Stuart Piketh, Raghavendra Kumar Kanike, Sivakumar Venkataraman
The detailed analysis of columnar optical and microphysical properties of aerosols obtained from the AErosol RObotic NETwork (AERONET) Cimel sun photometer operated at Skukuza (24.98° S, 31.60° E, 150 m above sea level), South Africa was carried out using the level 2.0 direct sun and inversion products measured during 1999-2010. The observed aerosol optical depth (AOD) was generally low over the region, with high values noted in late winter (August) and mid-spring (September and October) seasons. The major aerosol types found during the study period were made of 3...
May 24, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28532507/isoprenoid-biosynthesis-in-dandelion-latex-is-enhanced-by-the-overexpression-of-three-key-enzymes-involved-in-the-mevalonate-pathway
#13
Katharina M Pütter, Nicole van Deenen, Kristina Unland, Dirk Prüfer, Christian Schulze Gronover
BACKGROUND: Latex from the dandelion species Taraxacum brevicorniculatum contains many high-value isoprenoid end products, e.g. triterpenes and polyisoprenes such as natural rubber. The isopentenyl pyrophosphate units required as precursors for these isoprenoids are provided by the mevalonate (MVA) pathway. The key enzyme in this pathway is 3-hydroxy-methyl-glutaryl-CoA reductase (HMGR) and its activity has been thoroughly characterized in many plant species including dandelion. However, two enzymes acting upstream of HMGR have not been characterized in dandelion latex: ATP citrate lyase (ACL), which provides the acetyl-CoA utilized in the MVA pathway, and acetoacetyl-CoA thiolase (AACT), which catalyzes the first step in the pathway to produce acetoacetyl-CoA...
May 22, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28532078/enhancement-of-fibroblast-growing-on-the-mannosylated-surface-of-cellulose-membranes
#14
Simone Birkheur, Paula Cristina de Sousa Faria-Tischer, Cesar A Tischer, Elisângela Flávia Pimentel, Marcio Fronza, Denise Coutinho Endringer, Anna Paola Butera, Renato Márcio Ribeiro-Viana
Bacterial cellulose membrane is a biomaterial with high value in the biomedical field. Many groups have been making efforts to promote chemical modifications of its structure and, consequently, add new characteristics. Recently, our group has developed a methodology to insert monoester succinic acid in bacterial cellulose membrane without disrupting the microfibril network and bind a protein on it. Considering the role of carbohydrates in the molecular recognition process in biological events, we continued these studies by inserting covalently multiples copies of aryl monosaccharide to bacterial cellulose succinylated and to study the in vitro tissue compatibility using fibroblasts...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531811/synthesis-of-novel-indole-derivatives-as-promising-dna-binding-agents-and-evaluation-of-antitumor-and-antitopoisomerase-i-activities
#15
Elizabeth Almeida Lafayette, Sinara Mônica Vitalino de Almeida, Renata Virginia Cavalcanti Santos, Jamerson Ferreira de Oliveira, Cezar Augusto da Cruz Amorim, Rosali Maria Ferreira da Silva, Maira Galdino da Rocha Pitta, Ivan da Rocha Pitta, Ricardo Olimpio de Moura, Luiz Bezerra de Carvalho Júnior, Moacyr Jesus Barreto de Melo Rêgo, Maria do Carmo Alves de Lima
Molecules bearing indole nucleus present diverse biological properties such as antitumor and anti-inflammatory activities that can be associated both to DNA and protein interactions. This study focused on the synthesis of new indole derivatives with thiazolidines and imidazolidine rings condensed as side chains as well as the evaluation of their ability to interact with the DNA and antitumor and topoisomerase inhibition activities. All derivatives were successfully synthesized and their structures were elucidated by mass spectrometry (MS), infrared (IR), spectroscopy (1)H NMR, (13)C NMR, COSY (1)H-(1)H and HSQC (1)H-(13)C...
May 4, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28530408/authentication-markers-for-five-major-panax-species-developed-via-comparative-analysis-of-complete-chloroplast-genome-sequences
#16
Van Binh Nguyen, Hyun-Seung Park, Sang-Choon Lee, Junki Lee, Jee Young Park, Tae-Jin Yang
Ginseng represents a set of high-value medicinal plants of different species: Panax ginseng (Asian ginseng), P. quinquefolius (American ginseng), P. notoginseng (Chinese ginseng), P. japonicus (Bamboo ginseng), and P. vietnamensis (Vietnamese ginseng). Each species is pharmacologically and economically important, with differences in efficacy and price. Accordingly, an authentication system is needed to combat economically motivated adulteration of Panax products. We conducted comparative analysis of the chloroplast genome sequences of these five species, identifying 34-124 indels and 141-560 SNPs...
May 22, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28528623/organizational-perspectives-of-nurse-executives-in-15-hospitals-on-the-impact-and-effectiveness-of-rapid-response-teams
#17
Patricia L Smith, Jean McSweeney
BACKGROUND: Many hospitals use rapid response teams (RRTs) to respond to deteriorating patients, but it remains unclear what organizations actually monitor. Understanding what organizations value in an RRT may help clarify measurement choices. Interviews were conducted to determine how organizational leaders perceived and evaluated their hospitals' RRTs. METHODS: The study used a descriptive, qualitative design. Participants were nurse executives and key informants in 300- to 500-bed hospitals in the south-central United States and were recruited using purposive and snowball sampling...
June 2017: Joint Commission Journal on Quality and Patient Safety
https://www.readbyqxmd.com/read/28527344/harnessing-plant-metabolic-diversity
#18
REVIEW
Charlie Owen, Nicola J Patron, Ancheng Huang, Anne Osbourn
Advances in DNA sequencing and synthesis technologies in the twenty-first century are now making it possible to build large-scale pipelines for engineering plant natural product pathways into heterologous production species using synthetic biology approaches. The ability to decode the chemical potential of plants by sequencing their transcriptomes and/or genomes and to then use this information as an instruction manual to make drugs and other high-value chemicals is opening up new routes to harness the vast chemical diversity of the Plant Kingdom...
May 17, 2017: Current Opinion in Chemical Biology
https://www.readbyqxmd.com/read/28527154/structure-based-classification-for-bile-salt-export-pump-bsep-inhibitors-using-comparative-structural-modeling-of-human-bsep
#19
Sankalp Jain, Melanie Grandits, Lars Richter, Gerhard F Ecker
The bile salt export pump (BSEP) actively transports conjugated monovalent bile acids from the hepatocytes into the bile. This facilitates the formation of micelles and promotes digestion and absorption of dietary fat. Inhibition of BSEP leads to decreased bile flow and accumulation of cytotoxic bile salts in the liver. A number of compounds have been identified to interact with BSEP, which results in drug-induced cholestasis or liver injury. Therefore, in silico approaches for flagging compounds as potential BSEP inhibitors would be of high value in the early stage of the drug discovery pipeline...
May 19, 2017: Journal of Computer-aided Molecular Design
https://www.readbyqxmd.com/read/28526022/a-descriptive-cross-sectional-study-of-medical-student-preferences-for-vodcast-design-format-and-pedagogical-approach
#20
Robin K Pettit, Marjorie Kinney, Lise McCoy
BACKGROUND: Vodcasts (video podcasts) are becoming increasingly popular in medical education. At A.T. Still University School of Osteopathic Medicine in Arizona (ATSU SOMA), vodcasts are an essential component of our blended learning environment, where year 2-4 students train in a contextual setting at community health centers across the U.S. Vodcasts are used far less frequently in our year 1 residential learning environment at the main campus in Arizona, but we are considering moving to significantly more interactive educational experiences with on-demand videos followed by in-class activities...
May 19, 2017: BMC Medical Education
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