bluuebunny/crossref_metadata_2025 huggingface dataset:
24 h-accelerometry in epidemiological studies: automated detection of non-wear time in comparison to diary information
Authors: Jaeschke Lina , Luzak Agnes , Steinbrecher Astrid , Jeran Stephanie , Ferland Maike , Linkohr Birgit , Schulz Holger , Pischon Tobias
Published: May 2017

Estimation of physical activity using 24 h-accelerometry requires detection of accelerometer non-wear time (NWT). It is common practice to define NWT as periods >60 minutes of consecutive zero-accelerations, but this algorithm was originally developed for waking hours only and its applicability to 24 h-accelerometry is unclear. We investigated sensitivity and specificity of different algorithms to detect NWT in 24 h-accelerometry compared to diary in 47 ActivE and 559 KORA participants. NWT was determined with algorithms >60, >90, >120, >150, or >180 minutes of consecutive zero-counts. Overall, 9.1% (ActivE) and 15.4% (KORA) of reported NWT was >60 minutes. Sensitivity and specificity were lowest for the 60-min algorithm in ActivE (0.72 and 0.00) and KORA (0.64 and 0.08), and highest for the 180-min algorithm in ActivE (0.88 and 0.92) and for the 120-min algorithm in KORA (0.76 and 0.74). Nevertheless, when applying these last two algorithms, the overlap of accelerometry with any diary based NWT minutes was around 20% only. In conclusion, only a small proportion of NWT is >60 minutes. The 60-min algorithm is less suitable for NWT detection in 24 h-accelerometry because of low sensitivity, specificity, and small overlap with reported NWT minutes. Longer algorithms perform better but detect lower proportions of reported NWT.
Lack of inflammatory gene expression in bats: a unique role for a transcription repressor
Authors: Banerjee Arinjay , Rapin Noreen , Bollinger Trent , Misra Vikram
Published: May 2017

In recent years viruses similar to those that appear to cause no overt disease in bats have spilled-over to humans and other species causing serious disease. Since pathology in such diseases is often attributed to an over-active inflammatory response, we tested the hypothesis that bat cells respond to stimulation of their receptors for viral ligands with a strong antiviral response, but unlike in human cells, the inflammatory response is not overtly activated. We compared the response of human and bat cells to poly(I:C), a viral double-stranded RNA surrogate. We measured transcripts for several inflammatory, interferon and interferon stimulated genes using quantitative real-time PCR and observed that human and bat cells both, when stimulated with poly(I:C), contained higher levels of transcripts for interferon beta than unstimulated cells. In contrast, only human cells expressed robust amount of RNA for TNFα, a cell signaling protein involved in systemic inflammation. We examined the bat TNFα promoter and found a potential repressor (c-Rel) binding motif. We demonstrated that c-Rel binds to the putative c-Rel motif in the promoter and knocking down c-Rel transcripts significantly increased basal levels of TNFα transcripts. Our results suggest bats may have a unique mechanism to suppress inflammatory pathology.
Manganese oxide electrode with excellent electrochemical performance for sodium ion batteries by pre-intercalation of K and Na ions
Authors: Feng Mengya , Du Qinghua , Su Li , Zhang Guowei , Wang Guiling , Ma Zhipeng , Gao Weimin , Qin Xiujuan , Shao Guangjie
Published: May 2017

Materials with a layered structure have attracted tremendous attention because of their unique properties. The ultrathin nanosheet structure can result in extremely rapid intercalation/de-intercalation of Na ions in the charge–discharge progress. Herein, we report a manganese oxide with pre-intercalated K and Na ions and having flower-like ultrathin layered structure, which was synthesized by a facile but efficient hydrothermal method under mild condition. The pre-intercalation of Na and K ions facilitates the access of electrolyte ions and shortens the ion diffusion pathways. The layered manganese oxide shows ultrahigh specific capacity when it is used as cathode material for sodium-ion batteries. It also exhibits excellent stability and reversibility. It was found that the amount of intercalated Na ions is approximately 71% of the total charge. The prominent electrochemical performance of the manganese oxide demonstrates the importance of design and synthesis of pre-intercalated ultrathin layered materials.
Isolation and genomic characterization of a Dehalococcoides strain suggests genomic rearrangement during culture
Authors: Yohda Masafumi , Ikegami Kentaro , Aita Yuto , Kitajima Mizuki , Takechi Ayane , Iwamoto Megumi , Fukuda Tomomi , Tamura Noriyoshi , Shibasaki Junji , Koike Seiji , Komatsu Daisuke , Miyagi Sakari , Nishimura Minoru , Uchino Yoshihito , Shiroma Akino , Shimoji Makiko , Tamotsu Hinako , Ashimine Noriko , Shinzato Misuzu , Ohki Shun , Nakano Kazuma , Teruya Kuniko , Satou Kazuhito , Hirano Takashi , Yagi Osami
Published: May 2017

We have developed and characterized a bacterial consortium that reductively dechlorinates trichloroethene to ethene. Quantitative PCR analysis for the 16S rRNA and reductive dehalogenase genes showed that the consortium is highly enriched with Dehalococcoides spp. that have two vinyl chloride reductive dehalogenase genes, bvcA and vcrA, and a trichloroethene reductive dehalogenase gene, tceA. The metagenome analysis of the consortium by the next generation sequencer SOLiD 3 Plus suggests that a Dehalococcoides sp. that is highly homologous to D. mccartyi 195 and equipped with vcrA and tceA exists in the consortium. We isolated this Dehalococcoides sp. and designated it as D. mccartyi UCH-ATV1. As the growth of D. mccartyi UCH-ATV1 is too slow under isolated conditions, we constructed a consortium by mixing D. mccartyi UCH-ATV1 with several other bacteria and performed metagenomic sequencing using the single molecule DNA sequencer PacBio RS II. We successfully determined the complete genome sequence of D. mccartyi UCH-ATV1. The strain is equipped with vcrA and tceA, but lacks bvcA. Comparison with tag sequences of SOLiD 3 Plus from the original consortium shows a few differences between the sequences. This suggests that a genome rearrangement of Dehalococcoides sp. occurred during culture.
Coral larvae are poor swimmers and require fine-scale reef structure to settle
Authors: Hata Tom , Madin Joshua S. , Cumbo Vivian R. , Denny Mark , Figueiredo Joanna , Harii Saki , Thomas Christopher J. , Baird Andrew H.
Published: May 2017

Reef coral assemblages are highly dynamic and subject to repeated disturbances, which are predicted to increase in response to climate change. Consequently there is an urgent need to improve our understanding of the mechanisms underlying different recovery scenarios. Recent work has demonstrated that reef structural complexity can facilitate coral recovery, but the mechanism remains unclear. Similarly, experiments suggest that coral larvae can distinguish between the water from healthy and degraded reefs, however, whether or not they can use these cues to navigate to healthy reefs is an open question. Here, we use a meta-analytic approach to document that coral larval swimming speeds are orders of magnitude lower than measurements of water flow both on and off reefs. Therefore, the ability of coral larvae to navigate to reefs while in the open-ocean, or to settlement sites while on reefs is extremely limited. We then show experimentally that turbulence generated by fine scale structure is required to deliver larvae to the substratum even in conditions mimicking calm back-reef flow environments. We conclude that structural complexity at a number of scales assists coral recovery by facilitating both the delivery of coral larvae to the substratum and settlement.
Population genetics of an alien whitefly in China: implications for its dispersal and invasion success
Authors: Li Hong-Ran , Pan Hui-Peng , Tao Yun-Li , Zhang You-Jun , Chu Dong
Published: May 2017

Invasive genotypes may be associated with their ability to access the invasion habitat. The whitefly, Bemisia tabaci Q, has been an important agricultural pest in China since 2008. In order to identify the invasion routes and to provide insight into its invasion success in China, we analyzed the composition, distribution, and genetic diversity of mitochondrial haplotypes of B. tabaci Q. Samples were obtained from 23 provincial level administrative units in 2011, and analyses conducted based on the mtCOI. Our results revealed five haplotypes (abbreviated as Q1H1-Q1H5) were present in the Q1 subclade based on 773-bp mtCOI fragment analysis. The diversity of haplotypes indicated the B. tabaci Q populations were derived from multiple invasion sources originating from the western Mediterranean region. Among the haplotypes, Q1H1 was dominant, followed by Q1H2. The whitefly populations were generally characterized by low levels of genetic diversity based on the 773-bp mtCOI fragment. Similar results were obtained when the 657-bp fragment was analyzed using the procedure in a previous report. Potential mechanisms contributing to the dominance of the Q1H1 in China are also discussed. These results will be helpful in revealing the mechanisms that enabled the successful invasion of B. tabaci Q into the country.
Evolution of Th2 responses: characterization of IL-4/13 in sea bass (Dicentrarchus labrax L.) and studies of expression and biological activity
Authors: Stocchi Valentina , Wang Tiehui , Randelli Elisa , Mazzini Massimo , Gerdol Marco , Pallavicini Alberto , Secombes Chris J. , Scapigliati Giuseppe , Buonocore Francesco
Published: May 2017

Th2 immunity is a primary host defence against metazoan pathogens and two of the important cytokines involved in this immune response in mammals are IL-4 and IL-13. Recently the origin and evolution of Th2 immune responses have been investigated in fish where a molecule with relatedness to both IL-4 and IL-13 is present, termed IL-4/13. Different IL-4/13 paralogues (IL-4/13 A and IL-4/13B) exist in teleost fish. In this paper, we have focused on the IL-4/13 isoforms found in the European sea bass (Dicentrarchus labraxL.). Two tandem duplicated but divergent IL-4/13 A isoforms and one IL-4/13B are present, a unique situation compared to other teleosts. These genes were studied in terms of theirin vitroandin vivotranscript levels after different treatments and their biological activities after production of the recombinant isoforms. The results show that the presence of these three paralogues is associated with different activities, both in terms of their expression profiles and the ability of the proteins to modulate the expression of immune genes in head kidney leukocytes. It is clear that the initiation and control of type-2 responses in seabass is complex due to the presence of multiple IL-4/13 isoforms with overlapping but distinct activities.
The Variable Influence of Dispersant on Degradation of Oil Hydrocarbons in Subarctic Deep-Sea Sediments at Low Temperatures (0–5 °C)
Authors: Ferguson Robert M. W. , Gontikaki Evangelia , Anderson James A. , Witte Ursula
Published: May 2017

The microbial degradation of petroleum hydrocarbons at low temperatures was investigated in subarctic deep-sea sediments in the Faroe Shetland Channel (FSC). The effect of the marine oil dispersant, Superdispersant 25 on hydrocarbon degradation was also examined. Sediments collected at 500 and 1000 m depth were spiked with a model oil containing 20 hydrocarbons and incubated at ambient temperature (5 and 0 °C, respectively) with and without marine dispersant. Treatment of sediments with hydrocarbons resulted in the enrichment of Gammaproteobacteria, and specifically the genera Pseudoalteromonas, Pseudomonas, Halomonas, and Cobetia. Hydrocarbon degradation was faster at 5 °C (500 m) with 65–89% of each component degraded after 50 days compared to 0–47% degradation at 0 °C (1000 m), where the aromatic hydrocarbons fluoranthene, anthracene, and Dibenzothiophene showed no degradation. Dispersant significantly increased the rate of degradation at 1000 m, but had no effect at 500 m. There was no statistically significant effect of Superdispersant 25 on the bacterial community structure at either station. These results show that the indigenous bacterial community in the FSC has the capacity to mitigate some of the effects of a potential oil spill, however, the effect of dispersant is ambiguous and further research is needed to understand the implications of its use.
HMGA2 promotes vasculogenic mimicry and tumor aggressiveness by upregulating Twist1 in gastric carcinoma
Authors: Sun Junying , Sun Baocun , Sun Ran , Zhu Dongwang , Zhao Xiulan , Zhang Yanhui , Dong Xueyi , Che Na , Li Jing , Liu Fang , Zhao Nan , Wang Yong , Zhang Danfang
Published: May 2017

High mobility group protein A2 (HMGA2) is a transcription factor that plays an important role in the invasion and metastasis of gastric carcinoma (GC). The term vasculogenic mimicry (VM) refers to the unique ability of aggressive tumour cells to mimic the pattern of embryonic vasculogenic networks. However, the relationship between HMGA2 and VM formation remains unclear. In the present study, we examined concomitant HMGA2 expression and VM in 228 human GC samples and 4 GC cell lines. Our data indicate that HMGA2 is not only significantly associated with VM formation but also influences the prognosis of patients with gastric carcinoma. Overexpression of HMGA2 significantly increased cell motility, invasiveness, and VM formation both in vitro and in vivo. A luciferase reporter assay, Co-IP and ChIP demonstrated that HMGA2 induced the expression of Twist1 and VE-cadherin by binding to the Twist1 promoter. Moreover, we observed a decrease in VE-cadherin following Twist1 knockdown in cells overexpressing HMGA2. This study indicates that HMGA2 promotes VM in GC via Twist1-VE-cadherin signalling and influences the prognosis of patients with GC.
Time-dependent haemoperfusion after acute paraquat poisoning
Authors: Wang Hao-Ru , Pan Jian , Shang An-Dong , Lu Yuan-Qiang
Published: May 2017

Early haemoperfusion (HP) therapy has been found to be very effective in acute paraquat (PQ) poisoning, but the effective rescue window is still uncertain. Demographic data and the type of therapies administered of 621 patients were included as confounding factors in this retrospective study. After receiver operating characteristic curve analysis and intra-group/subgroup analysis, the initiation of glucocorticoid therapy within 3 hrs of exposure with a second treatment given <21 hrs after exposure, HP initiated within 4 hrs of exposure with a second treatment given <20 hrs after exposure, the appearance of pulmonary lesions ≤8 days after exposure and six other variables were used in a multiple analysis. The strength of positivity of the PQ urine test on admission, HP initiated within 4 hrs of exposure with a second treatment given <20 hrs after exposure, the appearance of pulmonary lesions ≤8 days after exposure, and stage III AKI on admission were independent factors of survival probability. HP therapy for acute PQ poisoning was the main therapeutic intervention investigated in this study. Outcomes were time dependent, and the crucial factor was the initiation of therapy within 4 hrs of PQ poisoning followed by a second treatment within 20 hrs.
A database of georeferenced nutrient chemistry data for mountain lakes of the Western United States
Authors: Williams Jason , Labou Stephanie G.
Published: May 2017

Human activities have increased atmospheric nitrogen and phosphorus deposition rates relative to pre-industrial background. In the Western U.S., anthropogenic nutrient deposition has increased nutrient concentrations and stimulated algal growth in at least some remote mountain lakes. The Georeferenced Lake Nutrient Chemistry (GLNC) Database was constructed to create a spatially-extensive lake chemistry database needed to assess atmospheric nutrient deposition effects on Western U.S. mountain lakes. The database includes nitrogen and phosphorus water chemistry data spanning 1964–2015, with 148,336 chemistry results from 51,048 samples collected across 3,602 lakes in the Western U.S. Data were obtained from public databases, government agencies, scientific literature, and researchers, and were formatted into a consistent table structure. All data are georeferenced to a modified version of the National Hydrography Dataset Plus version 2. The database is transparent and reproducible; R code and input files used to format data are provided in an appendix. The database will likely be useful to those assessing spatial patterns of lake nutrient chemistry associated with atmospheric deposition or other environmental stressors.
Obesity-related CpG Methylation (cg07814318) of Kruppel-like Factor-13 (KLF13) Gene with Childhood Obesity and its cis-Methylation Quantitative Loci
Authors: Koh In-Uk , Lee Hye-Ja , Hwang Joo-Yeon , Choi Nak-Hyun , Lee Suman
Published: May 2017

The cg07814318 hypermethylation of Kruppel-like factor 13 (KLF13) gene has been reported for its relevancy with Body Mass Index (BMI) from European origin. We explored the cg07814318 methylation and its cis-meQTL (cis-methylation quantitative loci) of KLF13 from a childhood obesity cohort. The cg07814318 methylation in blood was significantly associated with obesity and correlated with several obesity-related physical and biochemical traits. We examined the same loci from purified three human cell types (n = 47), i.e., pre-adipocytes, adipocytes and islets. The cg07814318 methylation pattern in pre-adipocytes and islets were significant higher in cells from subjects with a higher BMI compared with control subjects. By exome sequencing of KLF13 gene in blood with the same cohort, we found nine SNPs (single nucleotide polymorphisms) within its gene body, and two SNPs (rs11537749 and rs12595641) were as cis-meQTL of cg07814318. There was the 2.01% methylation change of cg07814318 between homozygous dominant and recessive genotypes, especially, in rs12595641. The sequencing variations within KLF13 genes could drive dynamic modifications of obesity-related CpG methylation. Differential DNA methylation patterns in the KLF13 gene determined from separate blood samples showed that this criterion could be used as a surrogate for representing overall epigenetic changes in cells related to obesity.
Correction: Corrigendum: Investigating starch gelatinization through Stokes vector resolved second harmonic generation microscopy
Authors: Mazumder Nirmal , Xiang Lu Yun , Qiu Jianjun , Kao Fu-Jen
Published: May 2017

Scientific Reports 7: Article number: 45816; published online: 06 April 2017; updated: 16 May 2017. The original version of this Article contained an error in Affiliation 2, which was incorrectly given as: ‘Department of Biophysics, School of Life Sciences, Manipal University, Manipal, 567014, India’.
Immunological effects of behavioral activation with exercise in major depression: an exploratory randomized controlled trial
Authors: Euteneuer F , Dannehl K , del Rey A , Engler H , Schedlowski M , Rief W
Published: May 2017

Major depression (MD) is associated with peripheral inflammation and increased cardiovascular risk. Regular physical exercise can have anti-inflammatory effects. The present study examined whether behavioral activation with exercise affects inflammatory processes in MD. Ninety-eight patients with MD were randomly assigned to cognitive-behavioral therapy (CBT) emphasizing exercise during behavioral activation (CBT-E), CBT with pleasurable low-energy activities as an active control condition (CBT-C) or a passive waiting list control group (WL). Plasma levels of C-reactive protein (CRP), interleukin (IL)-6, IL-10, lipopolysaccharide (LPS)-stimulated IL-6 production, and blood immune cell counts were analyzed at baseline and weeks 8 (post-behavioral activation) and 16 (post-treatment). Thirty non-depressed age- and sex-matched controls were included to examine potential immunological alterations in MD at baseline. Patients with MD exhibited higher levels of CRP, higher neutrophil and monocyte counts, lower IL-10 levels and reduced LPS-stimulated IL-6 production compared to controls (P<0.001−0.045). Multilevel modeling indicated that CBT-E was associated with increased anti-inflammatory IL-10 at weeks 8 and 16 compared to CBT-C and WL (P=0.004−0.018). CBT-E did not significantly affect other immunological makers in the total sample. A subgroup analysis including patients with potentially higher cardiovascular risk (CRP ⩾1 μg ml−1) indicated that CRP was reduced in CBT-E compared to CBT-C (P<0.007) and marginally reduced compared to WL (P<0.085) after week 16. The present findings provide new insights into immunological effects of behavioral treatments against depression. Behavioral activation in conjunction with exercise may have the potential to reverse, in part, immunological alterations in MD.
A graphene quantum dot/phthalocyanine conjugate: a synergistic catalyst for the oxygen reduction reaction
Authors: Koh Ki Hwan , Noh Sung Hyun , Kim Tae-Hyun , Lee Won Jun , Yi Sung-Chul , Han Tae Hee
Published: May 2017

In this work, a novel graphene quantum dot/iron phthalocyanine conjugate is synthesized. This hybrid material show efficient electrocatalytic activityviafour electron reaction and distinguished tolerance toward methanol and CO.
Borinic acid-catalyzed stereo- and site-selective synthesis of β-glycosylceramides
Authors: D’Angelo Kyan A. , Taylor Mark S.
Published: May 2017

Diphenylborinic acid catalysis enables the direct, stereo- and site-selective coupling of glycosyl donors with ceramide lipids. The β-1,1′-linkages accessed through this method are characteristic of mammalian glycosphingolipids that play diverse roles in physiology, human health and disease.
5-Benzylidene-4-oxazolidinones potently inhibit biofilm formation in Methicillin-resistant Staphylococcus aureus
Authors: Edwards Grant A. , Shymanska Nataliia V. , Pierce Joshua G.
Published: May 2017

Investigation into the biological function of 5-benzylidene-4-oxazolidinones revealed dose-dependent inhibition of biofilm formation in Methicillin-resistantS. aureus(MRSA).
Rydberg states of alkali atoms on superfluid helium nanodroplets: inside or outside?
Authors: Pototschnig Johann V. , Lackner Florian , Hauser Andreas W. , Ernst Wolfgang E.
Published: May 2017

Electronic excitations of an electron bound to an alkali metal ion inside a droplet of superfluid 4He are computed via a combination of helium density functional theory and the numerical integration of the Schrödinger equation for a single electron in a modified, He density dependent atomic pseudopotential.
Elucidating the structure of light absorbing styrene carbocation species formed within zeolites
Authors: Valencia Diego
Published: May 2017

Styrene-based carbocation species have been studied by theoretical calculations. Remarkable features are described.
Automation of route identification and optimisation based on data-mining and chemical intuition
Authors: Lapkin A. A. , Heer P. K. , Jacob P.-M. , Hutchby M. , Cunningham W. , Bull S. D. , Davidson M. G.
Published: May 2017

Data-mining of Reaxys and network analysis of the combined literature and in-house reactions set were used to generate multiple possible reaction routes to convert a bio-waste feedstock, limonene, into a pharmaceutical API, paracetamol. The network analysis of data provides a rich knowledge-base for generation of the initial reaction screening and development programme. Based on the literature and the in-house data, an overall flowsheet for the conversion of limonene to paracetamol was proposed. Each individual reaction–separation step in the sequence was simulated as a combination of the continuous flow and batch steps. The linear model generation methodology allowed us to identify the reaction steps requiring further chemical optimisation. The generated model can be used for global optimisation and generation of environmental and other performance indicators, such as cost indicators. However, the identified further challenge is to automate model generation to evolve optimal multi-step chemical routes and optimal process configurations.
Dynamic SERS nanosensor for neurotransmitter sensing near neurons
Authors: Lussier Félix , Brulé Thibault , Bourque Marie-Josée , Ducrot Charles , Trudeau Louis-Éric , Masson Jean-François
Published: May 2017

Current electrophysiology and electrochemistry techniques have provided unprecedented understanding of neuronal activity. However, these techniques are suited to a small, albeit important, panel of neurotransmitters such as glutamate, GABA and dopamine, and these constitute only a subset of the broader range of neurotransmitters involved in brain chemistry. Surface-enhanced Raman scattering (SERS) provides a unique opportunity to detect a broader range of neurotransmitters in close proximity to neurons. Dynamic SERS (D-SERS) nanosensors based on patch-clamp-like nanopipettes decorated with gold nanoraspberries can be located accurately under a microscope using techniques analogous to those used in current electrophysiology or electrochemistry experiments. In this manuscript, we demonstrate that D-SERS can measure in a single experiment ATP, glutamate (glu), acetylcholine (ACh), GABA and dopamine (DA), among other neurotransmitters, with the potential for detecting a greater number of neurotransmitters. The SERS spectra of these neurotransmitters were identified with a barcoding data processing method and time series of the neurotransmitter levels were constructed. The D-SERS nanosensor was then located near cultured mouse dopaminergic neurons. The detection of neurotransmitters was performed in response to a series of K+depolarisations, and allowed the detection of elevated levels of both ATP and dopamine. Control experiments were also performed near glial cells, showing only very low basal detection neurotransmitter events. This paper demonstrates the potential of D-SERS to detect neurotransmitter secretion events near living neurons, but also constitutes a strong proof-of-concept for the broad application of SERS to the detection of secretion events by neurons or other cell types in order to study normal or pathological cell functions.
Challenges and recommendations for environmental sustainability assessments of pharmaceutical products in the healthcare sector
Authors: De Soete Wouter , Jiménez-González Concepción , Dahlin Phil , Dewulf Jo
Published: May 2017

With healthcare representing a significant portion of the global economy, it is important to be able to understand the environmental impacts of this industry due to its size and nature of its operations.
Orthogonal smectic and nematic ordering in three-ring polar bent-core molecules with anti-parallel arrangement
Authors: Kaur Supreet , Punjani Vidhika , Mohiuddin Golam , Pal Santanu Kumar
Published: May 2017

Three-ring based BLCs exhibiting orthogonal smectic and nematic phases with antiparallel arrangement as derived from SCXRD and X-ray scattering results.
Ionic liquid coated sulfonated carbon@titania composites for the one-pot synthesis of indeno[1,2-b]indole-9,10-diones and 1H-pyrazolo[1,2-b]phthalazine-5,10-diones in aqueous media
Authors: Kour Manmeet , Bhardwaj Madhvi , Sharma Harsha , Paul Satya , Clark James H.
Published: May 2017

A novel and efficient ionic liquid based solid Bronsted acid catalyst has been designed and explored as a recyclable catalytic system for multicomponent synthesis in an aqueous reaction media.
n-Capric acid-anchored silanized silica gel: its application to sample clean-up of Th(iv) sorbed as a dinuclear species in quantified H-bonded dimeric metal-trapping cores
Authors: Mandal Bhabatosh , Roy Dipika , Chatterjee Mousumi , Sarkar Rimi , Srivastava Bhavya , Banerjee Siddthartha , Mondal Sneha , Barman Milan K.
Published: May 2017

nCA anchored to SSG surface generates 121 μM g−1 H-bonded metal-trapping cores with 10-fold increase in surface area for selective uptake of {Th2(OH)2(H2O)2}6+.
Photoluminescence and magnetic analysis of a family of lanthanide(iii) complexes based on diclofenac
Authors: Echenique-Errandonea E. , Oyarzabal I. , Cepeda J. , San Sebastian E. , Rodríguez-Diéguez A. , Seco J. M.
Published: May 2017

A family of ten isostructural complexes based on the diclofenac ligand exhibiting interesting magnetic and luminescence properties has been prepared.
Synthesis, structure and photoluminescence properties of Ce3+-doped SrSc2O4: a new scandate green-emitting phosphor with blue excitation
Authors: Li Gen , Fan Yu , Guo Haijie , Wang Yuhua
Published: May 2017

Novel Ce3+-doped SrSc2O4 phosphors were synthesized via a solid state method.
A polymer-based probe for specific discrimination of cysteine
Authors: Liu Keyuan , Du Ganhong , Zhao Mengna , Ye Long , Shen Huifang , Jiang Liming
Published: May 2017

A kind of polymer-based turn-on fluorescent probe for specific detection of cysteine with high sensitivity has been developed.
The stirring rate provides a dramatic acceleration of the ultrafast interfacial SET-LRP in biphasic acetonitrile–water mixtures
Authors: Jezorek Ryan L. , Enayati Mojtaba , Smail Rauan B. , Lejnieks Jānis , Grama Silvia , Monteiro Michael J. , Percec Virgil
Published: May 2017

The rate of interfacial SET-LRP in biphasic acetonitrile–water mixtures is stirring rate dependent.
Synthesis and characterization of two isomeric dithienopyrrole series and the corresponding electropolymers
Authors: Förtsch Sebastian , Bäuerle Peter
Published: May 2017

Structure–properties relationships concerning monomers and electropolymers of dithieno[3,2-b:2′,3′-d]pyrroles (DTPs) and isomeric cross-conjugated dithieno[2,3-b:3′,2′-d]pyrroles (iso-DTPs) are presented.
Differential pulse voltammetric determination of an immunosuppressive drug teriflunomide on an edge plane pyrolytic graphite electrode
Authors: Kaczmarska Kinga , Brycht Mariola , Leniart Andrzej , Skrzypek Sławomira
Published: May 2017

In the present work, sensitive and selective determination of teriflunomide (Trf) on an edge plane pyrolytic graphite electrode (EPPGE) using differential pulse voltammetry (DPV) is presented for the first time.
DFT study of single water molecule adsorption on the (100) and (101) surfaces of KH2PO4
Authors: Zhang Lei , Wu Yulin , Liu Yao , Li Hui
Published: May 2017

The adsorption of single water molecule on external surfaces of KDP crystal was theoretically investigated based on DFT method. We would also be grateful if you could change the image to the attached one.
Loading docetaxel in β-cyclodextrin-based micelles for enhanced oral chemotherapy through inhibition of P-glycoprotein mediated efflux transport
Authors: Zhang Lu , Shen Yurun , Qiu Liyan
Published: May 2017

β-Cyclodextrin-based polymeric micelle (PELC) effectively delivered docetaxel by oral administration through inhibition of P-glycoprotein mediated efflux.
Thermal conductivity of multilayer dielectric films from molecular dynamics simulations
Authors: Chen Liang , Kumari Niru , Chen Shuangtao , Hou Yu
Published: May 2017

Multilayer dielectric structure can help to reduce heat loss of phase change memory.
Multifunctional hard-shelled microbubbles for differentiating imaging, cavitation and drug release by ultrasound
Authors: Chen Waner , Yang Yan , Shangguan Dihua , Wu Yuejing , Liu Zhe
Published: May 2017

Polymeric microbubbles bearing a hard shell exhibit prominent stability and tunable acoustical properties that serve the purposes of biomedical imaging and ultrasound (US)-triggered cavitations.
Realizing superior white LEDs with both high R9 and luminous efficacy by using dual red phosphors
Authors: Luo Dong , Wang Le , Or Siu Wing , Zhang Hong , Xie Rong-Jun
Published: May 2017

An unique spectral configuration was designed to improve both luminous efficacy and color rendering by using dual red phosphors.
Introducing unactivated acyclic internal aliphatic olefins into a cobalt catalyzed allylic selective dehydrogenative Heck reaction
Authors: Maity Soham , Dolui Pravas , Kancherla Rajesh , Maiti Debabrata
Published: May 2017

A highly regio- and stereoselective cobalt catalyzed allylic selective dehydrogenative Heck reaction with internal aliphatic olefins was developed. Both internal and terminal aliphatic olefins can be employed, thereby significantly expanding the scope of alkenylation chemistry.
Enantioselective palladium-catalyzed diboration of 1,1-disubstituted allenes
Authors: Liu Jiawang , Nie Ming , Zhou Qinghai , Gao Shen , Jiang Wenhao , Chung Lung Wa , Tang Wenjun , Ding Kuiling
Published: May 2017

Enantioselective palladium-catalyzed diboration of 1,1-disubstituted allenes is developed for the first time by employing a P-chiral monophosphorus ligand, BI-DIME.
Correction: Simultaneous engineering of an enzyme’s entrance tunnel and active site: the case of monoamine oxidase MAO-N
Authors: Li Guangyue , Yao Peiyuan , Gong Rui , Li Jinlong , Liu Pi , Lonsdale Richard , Wu Qiaqing , Lin Jianping , Zhu Dunming , Reetz Manfred T.
Published: May 2017

Correction for ‘Simultaneous engineering of an enzyme’s entrance tunnel and active site: the case of monoamine oxidase MAO-N’ by Guangyue Li et al., Chem. Sci., 2017, 8, 4093–4099.
One-step radiation synthesis of gel polymer electrolytes with high ionic conductivity for lithium-ion batteries
Authors: Wang Yimeng , Qiu Jingyi , Peng Jing , Li Jiuqiang , Zhai Maolin
Published: May 2017

We demonstrated a one-step synthesis method for a novel gel polymer electrolyte (named PDMP-Li GPE) based on 3-(dimethylamino) propyl methacrylate, poly(ethylene glycol) diacrylate and 1 M LiPF6 liquid electrolyte solution by a γ-radiation technique for lithium-ion batteries.
P doped Co2Mo3Se nanosheets grown on carbon fiber cloth as an efficient hybrid catalyst for hydrogen evolution
Authors: Guo Yaxiao , Yao Zhaoyang , Shang Changshuai , Wang Erkang
Published: May 2017

Owing to the prominent synergistic effects, P-Co2Mo3Se/CFC hybrid catalyst exhibits a superior HER activity with a small overpotential of 71 mV at cathodic current density of 10 mA cm−2, and a small Tafel slope of 43.6 mV dec−1, as well as excellent cycling stability.
Correction: From anisotropic graphene aerogels to electron- and photo-driven phase change composites
Authors: Li Guangyong , Zhang Xuetong , Wang Jin , Fang Jianhui
Published: May 2017

Correction for ‘From anisotropic graphene aerogels to electron- and photo-driven phase change composites’ by Guangyong Li et al., J. Mater. Chem. A, 2016, 4, 17042–17049.
Development of a selective cell capture and release assay: impact of clustered RGD ligands
Authors: Degardin M. , Thakar D. , Claron M. , Richter R. P. , Coche-Guérente L. , Boturyn D.
Published: May 2017

Clustered RGD compounds improve the selective capture and release of cells that express αvβ3integrin.
A mechanochemical route toward the rational, systematic, and cost-effective green synthesis of strongly luminescent copper iodide based hybrid phosphors
Authors: Liu Wei , Zhu Kun , Teat Simon J. , Deibert Benjamin J. , Yuan Wenbing , Li Jing
Published: May 2017

Mechanochemical synthesis via simple manual grinding is one of the most commonly used green synthetic approaches and is applied here for the synthesis of new hybrid phosphors Cu2I2(tpp)2(L)n (n = 1, 2).
Rapid gel-to-sol transition triggered by a photoacid generator under low-power light
Authors: Xue Pengchong , Ding Jipeng , Jin Ming , Lu Ran
Published: May 2017

A photoacid generator was used as a trigger to promote rapid phase transition of a supramolecular gel under a low power light stimulus.
Interleukin-1 and TRAF6-dependent activation of TAK1 in the absence of TAB2 and TAB3
Authors: Zhang Jiazhen , Macartney Thomas , Peggie Mark , Cohen Philip
Published: May 2017

Interleukin-1 (IL-1) signaling induces the formation of Lys63-linked ubiquitin (K63-Ub) chains, which are thought to activate the ‘master’ protein kinase TGFβ-activated kinase 1 (TAK1) by interacting with its TAK1-binding 2 (TAB2) and TAB3 subunits. Here, we report that IL-1β can also activate the TAB1–TAK1 heterodimer present in TAB2/TAB3 double knockout (DKO) IL-1 receptor-expressing cells. The IL-1β-dependent activation of the TAB1–TAK1 heterodimer in TAB2/3 DKO cells is required for the expression and E3 ligase activity of tumor necrosis factor receptor-associated factor 6 (TRAF6) and is reduced by the small interfering RNA (siRNA) knockdown of ubiquitin conjugating 13 (Ubc13), an E2-conjugating enzyme that directs the formation of K63-Ub chains. IL-1β signaling was restored to TAB1/2/3 triple KO cells by the re-expression of either TAB1 or TAB2, but not by an ubiquitin binding-defective mutant of TAB2. We conclude that IL-1β can induce the activation of TAK1 in two ways, only one of which requires the binding of K63-Ub chains to TAB2/3. The early IL-1β-stimulated, TAK1-dependent activation of p38α mitogen-activated protein (MAP) kinase and the canonical IκB kinase (IKK) complex, as well as the NF-κB-dependent transcription of immediate early genes, was similar in TAB2/3 DKO cells and TAB2/3-expressing cells. However, in contrast with TAB2/3-expressing cells, IL-1β signaling was transient in TAB2/3 DKO cells, and the activation of c-Jun N-terminal kinase 1 (JNK1), JNK2 and p38γ was greatly reduced at all times. These observations indicate a role for TAB2/3 in directing the TAK1-dependent activation of MAP kinase kinases that switch on JNK1/2 and p38γ MAP kinases. These observations and the transient activation of the TAB1–TAK1 heterodimer may explain why IL-1β-dependent IL-8 mRNA formation was abolished in TAB2/3 DKO cells.
Whole body vibration exercise combined with an extract ofCoriandrum sativummodify some biochemical/physiological parameters in rats
Authors: Frederico Éric H.F.F. , Cardoso André L.B.D. , Guimarães Carlos A.S. , Almeida Lívia P. , Neves Rosane F. , Sá-Caputo Danúbia C. , Moreira-Marconi Eloá , Dionello Carla F. , Morel Danielle S. , Paineiras-Domingos Laisa L. , Costa-Cavalcanti Rebeca G. , Sousa-Gonçalves Cintia R. , Arnóbio Adriano , Asad Nasser R. , Bernardo-Filho Mario
Published: May 2017

The aim of the present study was to evaluate the effect of the association of whole body vibration (WBV) exercise with an aqueous extract of coriander on the biodistribution of the radiopharmaceutical sodium pertechnetate, on the concentration of some plasma biomarker, on the feed intake, on the body mass, and on the stool consistency in rats. Rats were divided in four groups and submitted to different treatments for 40 days. The control group (CON) received deionized water. The group treated with coriander (COR) received the extract of coriander. The rats that were exposed to WBV exercises (WBV-E) also received deionized water. A group of animals received coriander and was exposed to WBV (COR + WBV-E). We found in testis a decrease (0.13 ± 0.01 to 0.06 ± 0.03) of the percentages of injected radioactivity per gram (%ATI/g) in the WBV-E in comparison with the COR. There is no significant alteration on the concentrations of the plasma biomarkers. The feed intake showed a statistically significant increase in WBV-E. No significant difference on the body mass was found. The stool analysis showed a statistical difference on the consistency between COR (hard and dry, darker) and all the other groups (normal). In conclusion, it was verified that possible modifications in some biochemical/physiological parameters of the rats submitted to WBV exercise would be capable to increase the feed intake without changing the body mass, and normalizing the stool consistency altered by the coriander supplementation. Further studies are needed to try to understand better the biological effects involving the association of WBV exercise and coriander.
Determination of volatile organic compounds exhaled by cell lines derived from hematological malignancies
Authors: Tang Hongxia , Lu Yan , Zhang Lulu , Wu Zhonghui , Hou Xiaofang , Xia Hailong
Published: May 2017

Background: The gas human exhaled contains many volatile organic compounds (VOCs), which is related to the health status of body. Analysis of VOCs has been proposed as a noninvasive diagnostic tool for certain cancers. Detailed research on the VOCs in gas exhaled by cell can characterize cell type specific metabolites and may be helpful to detect the cancer markers in clinical practice.

Methods: Solid-phase microextraction (SPME) gas chromatography–mass spectrometry was used to detect VOCs in the headspace of tissue culture flask in non-Hodgkin’s lymphoma (NHL) cell line JEKO and acute mononuclear leukemia cell line SHI-1, to elaborate the characteristic gaseous biomarkers of hematological malignancies. While macrophage cells and lymphocytic cells were acted as control. The blank group was only the RPMI 1640 medium containing 10% fetal calf serum that without cells.

Results: Comparing with control group, the concentration of dimethyl sulfide, 2,4-dimethylheptane, methylbenzene, o-xylene, dodecane, and 1,3-di-tert-butylbenzene in JEKO cells was relatively higher, while the concentration of ethanol, hexanal, and benzaldehyde was lower. In SHI-1 cells, the levels of 2,4-dimethylheptane, benzene, 4-methyldecane, chloroform, 3,7-dimethyl dodecane, and hexadecane were significantly elevated, but the levels of hexanol and cyclohexanol were distinctly reduced.

Conclusions: This pilot study revealed that the malignant hematological cells could change the components of VOCs in the cell culture flask in a cell type-specific pattern. The traits of VOCs in our setting offered new strategy for hematological malignancies tracing, and would act as potential biomarkers in diagnosis of malignant hematological diseases.
Approximated observation operator‐based ℓq regularisation algorithm for SAL imaging
Authors: Wang Ning , Wei Zhonghao , Li Guangzuo , Wang Ran , Zhang Keshu , Wu Yirong
Published: May 2017

The synthetic aperture ladar (SAL) is similar to the synthetic aperture radar (SAR) while working at optical frequency, which could provide higher resolution than SAR. However, due to the shorter wavelength, the vibration of the platform and atmosphere turbulence will induce more serious phase error, which results in the defocused SAL image with lower signal‐to‐noise ratio. A novel approximated observation operator‐based imaging method for SAL is proposed to solve an ℓq norm optimisation problem. Combined with the motion compensation method, the presented ℓq regularisation algorithm can suppress the side lobe and clutter, and improve the target‐to‐clutter ratio and image contrast efficiently. Also, the computational complexity is the same as the matched filtering imaging algorithm. Real airborne SAL data has been used to demonstrate the feasibility of the proposed algorithm.
Sidelobe‐level reduction of a linear array using two amplitude tapering techniques
Authors: Diawuo Henry Abu , Lee Sung Jun , Jung Young‐Bae
Published: May 2017

Peak sidelobe levels (SLL) may be reduced via amplitude control or weighting across the array aperture. Several authors have made significant contributions in detailing processes for synthesising these aperture amplitude distributions for the purpose of sidelobe‐level control. This study, however, shows the use of two amplitude‐tapering methods simultaneously with pattern multiplication to achieve desired SLL. With a target bandwidth of 1.83 to 1.85 GHz and centre frequency of 1.84 GHz, a linear array is designed, fabricated and measured. Good agreement between simulated and measured results achieved shows that the proposed amplitude weighting methods applied to the antenna structure are very efficient in achieving reduced SLL below −20 dB across the operational bandwidth with an impedance bandwidth of 7.5% below −15 dB.
Linear quadratic mean field game with control input constraint
Authors: Hu Ying , Huang Jianhui , Li Xun
Published: May 2017

In this paper, we study a class of linear-quadratic (LQ) mean-field games in which the individual control process is constrained in a closed convex subsetΓof full space ℝm. The decentralized strategies and consistency condition are represented by a class of mean-field forward-backward stochastic differential equation (MF-FBSDE) with projection operators onΓ. The wellposedness of consistency condition system is obtained using the monotonicity condition method. The relatedϵ-Nash equilibrium property is also verified.
Mathematical modeling of microtubule dynamic instability: new insight into the link between gtp-hydrolysis and microtubule aging
Authors: Barlukova Ayuna , White Diana , Henry Gérard , Honoré Stéphane , Hubert Florence
Published: May 2017

Microtubules (MTs) are protein polymers that exhibit a unique type of behavior referred to as dynamic instability. That is, they undergo periods of growth (through the addition of GTP-tubulin) and shortening (through the subtraction of GDP-tubulin). Shortening events are very fast, where this transition is referred to as a catastrophe. There are many processes that regulate MT dynamic instability, however, recent experiments show that MT dynamics may be highly regulated by a MTs age, where young MTs are less likely to undergo shortening events than older ones. In this paper, we develop a novel modeling approach to describe how the age of a MT affects its dynamic properties. In particular, we extend on a previously developed model that describes MT dynamics, by proposing a new concept for GTP-tubulin hydrolysis (the process by which newly incorporated GTP-tubulin is hydrolyzed to lower energy GDP-tubulin). In particular, we assume that hydrolysis is mainly vectorial, age-dependent and delayed according to the GTP-tubulin incorporation into the MT. Through numerical simulation, we are able to show how MT age affects certain properties that define MT dynamics. For example, simulations illustrate how the aging process leads to an increase in the rate of GTP-tubulin hydrolysis for older MTs, as well as increases in catastrophe frequency. Also, since it has been found that MT dynamic instability is affected by chemotherapy microtubule-targeting agents (MTAs), we highlight the fact that our model can be used to investigate the action of MTAs on MT dynamics by varying certain model parameters.
Analysis of a mimetic finite difference approximation of flows in fractured porous media
Authors: Formaggia Luca , Scotti Anna , Sottocasa Federica
Published: May 2017

We consider the mixed formulation for Darcy’s flow in fractured media. We give a well-posedness result that does not rely on the imposition of pressure in part of the boundary of the fracture network, thus including a fully immersed fracture network. We present and analyze a mimetic finite difference formulation for the problem, providing convergence results and numerical tests.
Lewis Acid Catalyzed Carbonyl–Olefin Metathesis
Authors: Schindler Corinna , Ludwig Jacob
Published: May 2017

Olefin–olefin metathesis has led to important advances in diverse fields of research, including synthetic chemistry, materials science, and chemical biology. The corresponding carbonyl–olefin metathesis also enables direct carbon–carbon bond formation from readily available precursors, however, currently available synthetic procedures are significantly less advanced. This Synpacts article provides an overview of recent achievements in the field of Lewis acid mediated and Lewis acid catalyzed carbonyl–olefin metathesis reactions.

1 Lewis Acid Mediated Carbonyl–Olefin Metathesis

2 Lewis Acid Catalyzed Carbonyl–Olefin Metathesis
I2/TBHP-Promoted Approach to α-Keto Esters from Trifluoromethyl β-Diketones and Alcohols via C–C Bond Cleavage
Authors: Fang Xiang , Yang Xueyan , Shao Tongle , Zhou Jun , Jin Chen , Wu Fanhong
Published: May 2017

A metal-free oxidative coupling reaction of trifluoromethyl β-diketones with alcohols for the synthesis of α-keto esters in good to excellent yields has been developed. Preliminary mechanistic studies suggest that an I2/TBHP promoted sequential iodination, C–C bond cleavage, C–O bond formation and oxidation pathway is involved in this reaction.