bluuebunny/crossref_metadata_2025_split huggingface dataset:
Expression of RSOsPR10 in rice roots is antagonistically regulated by jasmonate/ethylene and salicylic acid via the activator OsERF87 and the repressor OsWRKY76, respectively
Authors: Yamamoto Takahiro , Yoshida Yuri , Nakajima Kazunari , Tominaga Makiko , Gyohda Atsuko , Suzuki Hiromi , Okamoto Takashi , Nishimura Takeshi , Yokotani Naoki , Minami Eiichi , Nishizawa Yoko , Miyamoto Koji , Yamane Hisakazu , Okada Kazunori , Koshiba Tomokazu 
Published: April 2018

AbstractPlant roots play important roles in absorbing water and nutrients, and in tolerance against environmental stresses. Previously, we identified a rice root‐specific pathogenesis‐related protein (RSOsPR10) induced by drought, salt, and wounding. RSOsPR10 expression is strongly induced by jasmonate (JA)/ethylene (ET), but suppressed by salicylic acid (SA). Here, we analyzed the promoter activity of RSOsPR10. Analyses of transgenic rice lines harboring different‐length promoter::β‐glucuronidase (GUS) constructs showed that the 3‐kb promoter region is indispensable for JA/ET induction, SA repression, and root‐specific expression. In the JA‐treated 3K‐promoter::GUS line, GUS activity was mainly observed at lateral root primordia. Transient expression in roots using a dual luciferase (LUC) assay with different‐length promoter::LUC constructs demonstrated that the novel transcription factor OsERF87 induced 3K‐promoter::LUC expression through binding to GCC‐cis elements. In contrast, the SA‐inducible OsWRKY76 transcription factor strongly repressed the JA‐inducible and OsERF87‐dependent expression of RSOsPR10. RSOsPR10 was expressed at lower levels in OsWRKY76‐overexpressing rice, but at higher levels in OsWRKY76‐knockout rice, compared with wild type. These results show that two transcription factors, OsERF87 and OsWRKY76, antagonistically regulate RSOsPR10 expression through binding to the same promoter. This mechanism represents a fine‐tuning system to sense the balance between JA/ET and SA signaling in plants under environmental stress.
Circumstances of suicide among individuals with a history of cancer
Authors: Massetti Greta M. , Holland Kristin M. , Jack Shane P.D. , Ragan Kathleen R. , Lunsford Natasha Buchanan 
Published: April 2018

AbstractObjectiveCancer can trigger psychological distress, which may be associated with risk of suicide. We explored precipitating circumstances of suicides among decedents with and without a history of cancer.MethodsCoroner or medical examiner and law enforcement narratives of adult suicides were coded from 17 participating states in Centers for Disease Control and Prevention's National Violent Death Reporting System during 2004 to 2013. Bivariate and multivariate analyses examined associations between cancer history and factors that precipitated suicide.ResultsOf 90 581 suicides, 4182 decedents (4.6%) had a history of cancer. Significantly more decedents with a history of cancer (versus without) were male, non‐Hispanic white, married, veterans, and aged 55 or older (P < .001). Decedents with a history of cancer were more likely to die of suicide by firearm and less likely to die of suicide by suffocation compared to poisoning. In matched case analyses controlling for demographic and recent circumstances, fewer decedents with a history of cancer had mental health problems, history of suicide attempts, alcohol use problems, intimate partner problems, financial problems, job problems, and recent crisis.ConclusionsFindings highlight the potential to identify high‐risk populations for suicide prevention in clinical practice.
Electrical dynamics of isolated cerebral and skeletal muscle endothelial tubes: Differential roles of G‐protein‐coupled receptors and K+ channels
Authors: Hakim Md A. , Buchholz John N. , Behringer Erik J. 
Published: April 2018

AbstractElectrical dynamics of freshly isolated cerebral endothelium have not been determined independently of perivascular nerves and smooth muscle. We tested the hypothesis that endothelium of cerebral and skeletal muscle arteries differentially utilizes purinergic and muscarinic signaling pathways to activate endothelium‐derived hyperpolarization. Changes in membrane potential (Vm) were recorded in intact endothelial tubes freshly isolated from posterior cerebral and superior epigastric arteries of male and female C57BL/6 mice (age: 3‐8 months). Vm was measured in response to activation of purinergic (P2Y) and muscarinic (M3) receptors in addition to small‐ and intermediate‐conductance Ca2+‐activated K+ (SKCa/IKCa) and inward rectifying K+ (KIR) channels using ATP (100 μmol·L−1), acetylcholine (ACh; 10 μmol·L−1), NS309 (0.01‐10 μmol·L−1), and 15 mmol·L−1 KCl, respectively. Intercellular coupling was demonstrated via transfer of propidium iodide dye and electrical current (±0.5‐3 nA) through gap junctions. With similarities observed across gender, peak hyperpolarization to ATP and ACh in skeletal muscle endothelial tubes was ~twofold and ~sevenfold higher, respectively, vs cerebral endothelial tubes, whereas responses to NS309 were similar (from resting Vm ~−30 mV to maximum ~−80 mV). Hyperpolarization (~8 mV) occurred during 15 mmol·L−1 KCl treatment in cerebral but not skeletal muscle endothelial tubes. Despite weaker hyperpolarization during endothelial GPCR stimulation in cerebral vs skeletal muscle endothelium, the capability for robust SKCa/IKCa activity is preserved across brain and skeletal muscle. As vascular reactivity decreases with aging and cardiovascular disease, endothelial K+ channel activity may be calibrated to restore blood flow to respective organs regardless of gender.
Evaluation of movement behaviors to inform toxic baiting strategies for invasive wild pigs (Sus scrofa)
Authors: Lavelle Michael J , Snow Nathan P , Halseth Joseph M , VanNatta Eric H , Sanders Heather N , VerCauteren Kurt C 
Published: April 2018

AbstractBACKGROUNDInvasive wild pigs damage agriculture, property, and natural ecosystems. To curtail damage, an effective and humane toxic bait containing microencapsulated sodium nitrite is under development. Strategies for delivering the toxic bait are needed to establish adequate spacing of bait sites, and for simultaneously accustoming wild pigs to the novel bait and wild pig‐specific bait stations designed to exclude non‐target species.RESULTSWe monitored movements of 32 Global Positioning System (GPS)‐collared wild pigs relative to 41 bait sites containing placebo bait. Among the bait sites, we compared three experimental baiting strategies (and a control) to evaluate which strategy led to the most wild pigs accessing the placebo bait inside bait stations. We found that bait sites should be spaced 0.5–1 km apart to maximize opportunities for all wild pigs to find and utilize the bait sites. Baiting strategies that allowed ≥ 15 days for accustoming wild pigs to bait stations were most effective and resulted in nearly 90% of wild pigs accessing the placebo bait inside the bait stations. Bait stations excluded all non‐target animals, except one instance with a raccoon (Procyon lotor).CONCLUSIONThese results demonstrate the potential for toxic bait to be an effective tool for reducing populations of wild pigs with minimal risks to non‐target species, if optimized delivery procedures are followed. © 2018 Society of Chemical Industry
One Pot Synthesis and Biological Evaluation of Some New Pyridine‐3,5‐dicarbonitrile Derivatives
Authors: Joshi Hitendra , Shah Nirav , Sakar Dhiman , Desai N. C. , Jadeja Krunalsinh A. 
Published: April 2018

AbstractWe have developed eco‐friendly route for the synthesis of title compounds by using simple compounds like aromatic aldehydes, malononitrile, 4‐bromothiophenol and NaHCO3. In continuation to this, a series of pyridine‐3,5‐dicarbonitriles were synthesized with excellent yields and assessed for their in vitro antitubercular and antimicrobial activity. The results of the antimicrobial study showed potent antimicrobial activity as compared to the standard drugs (Chloramphenicol and Griseofulvin). It was noticed that the presence of electron donating groups significantly increases the antibacterial activity of the newly synthesized compounds. The title compounds further evaluated for antitubercular activity and from the promising results, they were found to possess significant biological activity against M. tuberculosis.
Carbon‐Nanotube‐Encapsulated LiTiOPO4 Composite Electrode for Aqueous Rechargeable Battery Applications
Authors: Puttaswamy Rangaswamy , Suresh Gurukar Shivappa , Mahadevan Kittappa Malavalli , Arthoba Nayaka Yanjerappa 
Published: April 2018

AbstractA Single‐walled carbon nanotube (SWCNTs)‐encapsulated orthorhombic LiTiOPO4 (LTOP) anode material was explored for use in an aqueous electrolyte. The aqueous rechargeable Li‐ion battery was constructed by using LTOP/SWCNTs anode and LiFePO4@C (LFP@C) as a cathode in sat. Li2SO4 aqueous electrolyte. The LTOP has been synthesized by using a very simple method through a single‐step procedure. Quantitative structural and morphological features of LTOP have been studied via X‐ray diffraction, Raman spectra, scanning electron microscopic, energy dispersive X‐ray analysis, BET surface area analysis and transmission electron microscopy studies. The electrochemical properties and performance of the battery have been evaluated in half‐cell (LTOP/SWCNTs vs. SCE) as well as a full‐cell configuration with LFP@C as a cathode. Cyclic voltammetry (CV) was carried out to determine the redox properties and stability. After the CV, electrochemical performance and properties of LTOP/SWCNTs were evaluated through galvanostatic cycling with potential limitation and electrochemical impedance spectroscopic techniques. Further, we have also demonstrated the electrochemical performance and properties of LTOP/SWCNTs composite in the non‐aqueous electrolyte.
Electrical Nucleotide Sensor Based on Synthetic Guanine‐Receptor‐Modified Electrodes
Authors: Ohshiro Takahito , Verma Rajiv Kumar , Yokota Kazumichi , Tsutsui Makusu , Mukherjee Sanjukta , Kawai Tomoji , Nakatani Kazuhiko , Taniguchi Masateru 
Published: April 2018

AbstractMethyl 2‐carbamate‐1,8‐naphthyridine thiophenolate derivative (NCTP) has been designed and synthesized, which can selectively bind to guanine derivatives. We immobilized NCTP on gold electrode and performed cyclic voltammetry analysis for guanosine sensing. The current blockage data obtained from these NCTP immobilized electrodes suggest that electrodes have higher selectivity for 2’‐deoxyguanosine monophosphate (dGMP) than 2’‐deoxythymidine monophosphate (dTMP), 2’‐deoxycytidine monophosphate (dCMP), and 2’‐deoxyadenosine monophophate (dAMP). Thus, synthetic reader molecule NCTP, which has complementary hydrogen bonding surface for guanine derivatives, could be useful for the sensing of guanosine mononucleotides and polynucleotides.
Enhanced Charge Transfer Aptitude Resulting in Remarkable Chromogenic F‐ Sensing in a Naphthalene‐Benzocaine Platform by Simple Atomic Substitution: Azo Dye versus Schiff‐Base
Authors: Bhattacharyya Arghyadeep , Makhal Subhash Chandra , Ghosh Soumen , Guchhait Nikhil 
Published: April 2018

AbstractWe hereby report two compounds, (E)‐1‐(2‐(4) phenyldiazenyl) naphthalen‐2‐ol (AD) and (E)‐ethyl 4‐((2‐hydroxynaphthalen‐1yl) methyleneamino) benzoate (SB) and compared their respective responses towards F− ion. AD being an azo dye acts as a chromogenic sensor for F− and displays a color change from yellow to purple and can also detect F− in a mixture of anions. On the other hand, SB (a Schiff base) shows a deepening of its already existing yellow color in presence of F− but in presence of mixture of anions the response is very poor. The theoretically optimized structural analyses of AD and SB show that the extended intramolecular charge transfer (ICT) present in AD is accountable for the successful sensing of F−. The limits of detection for SB and AD were calculated to be 483 ppb and 18.3 ppb respectively. Thus, by simple manipulation of a functional group an efficient chromogenic F− sensor could be constructed, thereby establishing the superiority of azo dye over Schiff base as far as Fluoride sensing is concerned.
α‐Fe2O3/TiO2 Hybrids with Tunable Morphologies as Efficient Photocatalysts and Positive Electrodes for Supercapacitors
Authors: Chakravarty Mayukh , Das Anupam , Sarma Chitralee , Roy Poulomi 
Published: April 2018

AbstractHerein, we report the fabrication of α‐Fe2O3/TiO2 hybrid structures in the form of microrods, microtubes and nanorods by co‐precipitation method and via wet chemical method. The combination of α‐Fe2O3 and mixed phase (anatase and rutile) TiO2 as hybrid structure not only enhances the light absorption ability but also facilitates charge separation resulting effective dye degradation. The detailed studies of photocatalytic dye degradation on α‐Fe2O3/TiO2 system were carried out to understand the mechanism. The α‐Fe2O3/TiO2 hybrid nanorods exhibited the best performances as photocatalyst as well as supercapacitor electrode with excellent stability in both cases. The α‐Fe2O3/TiO2 hybrid nanorods exhibited efficient 88% dye degradation after 120 min as photocatalyst and a specific capacitance value of 478.40 F g−1 was achieved at current density of 1 A g−1 with a capacity retention value of 92% at 2 A g−1 after 1000 cycles. It is anticipated that the anisotropic structure as well as the synergistic effect of α‐Fe2O3 and TiO2 make the hybrid material a promising photocatalyst as well as potential electrode for supercapacitor.
Induction of Catalytic Activity in ZnO Loaded Cobalt Based MOF for the Reduction of Nitroarenes
Authors: Kaur Rupinder , Chhibber Manmohan , Mahata Partha , Mittal Susheel K. 
Published: April 2018

AbstractAmalgamating the robust structures of metal organic frameworks with nanoparticles is one of the most devisable and logical approach in order to enhance their applicability. We report herein an easy wet impregnation method for loading ZnO nanoparticles with tunable sizes and shapes on a cobalt based metal organic framework constructed by using CoCl2.6H2O and 4, 4’‐oxy‐bis (benzoic acid) (OBA). The size, composition and morphology of nanoparticles were characterized using powder X‐ray diffraction (P‐XRD), energy dispersive X‐ray spectroscopy (EDX), high resolution transmission electron microscopy (HR‐TEM), Raman spectroscopy, X‐ray Photoelectron spectroscopy (XPS) and UV‐Diffuse reflectance spectroscopy. The incorporation of nanoparticles does not affect the overall structural integrity of the framework whereas it induces the heterogenous catalytic capability for the reduction of nitro aromatics to their corresponding amines under benign conditions, which cannot be realized using bare MOF.
TiN‐Cu Heterogeneous Nanocatalysts for Effective Depolymerisation of Oxidised Lignin
Authors: Rashidi Masih , Konarova Muxina , Aslam Waqas , Beltramini Jorge Norberto 
Published: April 2018

AbstractLignin is one of the important resource for production of aromatics from lignocellulosic biomass. Effective depolymerisation of lignin is dependent on improvement of successful strategies for production of lower blocks of chemicals from lignin. Herein, a successful strategy for lignin depolymerisation is proposed based on, a two‐step selective oxidation and hydrogenolysis sequence, which efficiently cleaves lignin intermolecular bonds. The first step of this procedure is selective oxidation of lignin, which facilitates the lignin cleavage. The second step is hydrogenolysis conducted in the presence of titanium nitride supported copper (TiN−Cu) nanocatalysts. This two‐step lignin depolymerization produced more than 56 wt % valuable single‐ring aromatic compounds. The TiN−Cu nanocatalysts synthesised were inexpensive, effective and proven to have superior activity comparable to traditional noble metal based catalysts.
Consistent Binding Aptitude of Halides and Oxyanions via Cooperative vs. Non‐Cooperative Binding Modes by Neutral Napthyl Bis‐Urea Receptors
Authors: Nayak Biswajit , Manna Utsab , Das Gopal 
Published: April 2018

AbstractTwo electron‐rich napthyl ring containing bisurea receptor derived fromortho(L1) andmeta(L2)‐phenylenediamine moiety were designed and synthesized for investigating their anion coordination behavior.L1self‐assembled in presence of organic terephthalate anion into a dimeric pseudo‐capsular host‐assembly sealed by tetrabutylammonium counter cation (Complex1 c). However,L2self‐assembled in 2:4 host‐guest fashions (Complex2 d) with H‐bonded dihydrogenphosphate tetrameric anionic guest in the presence of excessn‐TBA (H2PO4). Further, receptorL1has been found to self‐assembled into unimolecular cooperative 1:1 complex in presence of spherical Chloride anion (Complex1 a) and planar Acetate anion (Complex1 b). Moreover, receptorL2forms similar kind of non‐capsular host‐guest assembly in presence of spherical halides like Cl−, Br−, and F−. To validate the result obtained in the solid state studies,1H‐NMR titration experiments have also been performed usingn‐TBA salts of anions to inspect the solution state anion binding behavior of isomeric receptorsL1andL2.
Glycerol‐K2CO3 Deep Eutectic Solvent as Environmentally Friendly Media with Basic and Dehumidifier Synergistic Effect for Running of Willgerodt‐Kindler Reaction
Authors: Radfar Iman , Abbasi Sepideh , Miraki Maryam Kazemi , Yazdani Elahe , Karimi Meghdad , Heydari Akbar 
Published: April 2018

AbstractIn this report, a different green method of thioamidation promoted an almost quitted procedure: Willgerodt‐Kindler (W‐K) reaction. In order to eliminate the major problems in the W‐K process: H2S releasing and also high‐temperature condition, a known Deep Eutectic Solvent (DES) exhibited a solution for such concerns. Use of Glycerol‐K2CO3 as a DES (Gly‐K2CO3 DES; 10:1 (mL: mmol)) is respect to its basic besides dehumidifying nature. Our next focus dedicated to the synthesis of new derivatives by altering acetophenone (as an alkyl aryl ketones) and secondary‐type amines. The efficient and optimized circumstances were assigned 30 min to 5 hours for reaction time and at 80°C to 100°C led to 71–88% yields for final thioamides.
From Dual to Discriminatory Sensing of CN‐/F‐Using Isomeric Molecules and Ascertained by Spectroscopic and DFT Methods
Authors: Sharma Sanyog , Singh Sran Balkaran , Singh Narinder , Hundal Geeta 
Published: April 2018

AbstractA series of three anthracene anchored dipodal chromogenic sensors appended with hydroxyl groups with different arrangements with respect to each other i. e., ortho (1), meta (2) and para (3) have been synthesized and evaluated as F− and CN− ion sensors. These sensors show variation in their selectivity response i. e. (1) equally responds to F− and CN− ions, (2) mainly responds to F− ion with slight interference from CN− while (3) totally discriminates between the two, being highly selective to F− ions only. This selectivity has been attributed to the acid‐base phenomenon which affects reactivity, sensitivity and selectivity of the sensors.
Thermal Energy Storage Capability of Polyurethane Foams Incorporated with Microencapsulated Phase Change Material
Authors: Qu Lijie , Li Aiming , Gu Jinjia , Zhang Chunling 
Published: April 2018

AbstractPolyurethane (PU) foam composites with improved thermal energy storage capability were fabricated. Composites were designed based on PU and microencapsulated phase change materials (microPCMs) with poly (methyl methacrylate) (PMMA) shell and n‐octadecane core. MicroPCMs prepared with three kinds of emulsifiers were investigated and compared. Styrene and maleic anhydride (SMA) copolymers were the most efficient emulsifiers, because they resulted in the formation of distinct spherical morphologies and high encapsulation rate (48.92%) of microPCM(SMA). The thermal energy storage property of the microPCM(SMA)/PU foam composites with added microPCM(SMA) was determined and improved, with melting and crystalline enthalpy increased to 8.6 J g−1. Thermogravimetry analysis showed the thermal stability of the materials, and the residue left was promoted to 17.8 wt.%. Therefore, PU foam composites with microPCMs have excellent potential for thermal energy storage applications.
Facile Fabrication of Organic‐Inorganic Hybrid Material Based on Well‐Dispersed AuNPs on Organo‐Functionalised Zn‐Al‐Layered Double Hydroxides for Hydroamination of 1‐Hexene
Authors: Sahoo Mitarani , Parida Kulamani 
Published: April 2018

AbstractA pioneering technique has been developed to design an organic‐inorganic hybrid material where small sized gold nano particles (2‐5 nm AuNPs) are uniformly dispersed on organo functionalized Zn−Al layered double hydroxide (LDH). Primarily a novel clay based hybrid material can be synthesized by grafting of organo silane groups (i. e. amino propyl triethoxy silane (APTS) and (3‐Mercaptopropyl) trimethoxy silane (MPTS)) onto the LDH layer. This hybrid material can control the crystal growth of AuNPs to generate a very small particle size and lock the position of consecutive AuNPs which prevent agglomeration. A regular characterisation was performed by various techniques. The TEM image revealed the formation of well dispersed AuNPs (having average particle sizes is 2–5 nm) on functionalised LDH. Diffuse reflectance spectra confirmed that the nucleation of AuNPs forms without any aggregation. Successful grafting of APTS and MPTS onto the LDH layers is confirmed from FTIR and NMR spectroscopy. The heterogeneous catalyst proves an excellent catalytic activity towards hydroamination reaction of 1‐hexene (addition of amine to inactivated alkenes). Interestingly AuNPs on organo functionalised LDH showed better catalytic activity and stability as compared to that of parent ZnAl‐LDH. Superior catalytic activity was generally endorsed to the small particle size of gold which is due to the synergistic effect between AuNPs with amine or thiol pendant of organic moiety APTS or MPTS respectively. The heterogeneous catalysts, i. e. AuNPs on thiol functionalized LDH, show 92% product yield and AuNPs on amine functionalized afford 95% product yield towards hydroamination reaction without the requisite of any acid promoters. The hybrid material can be recovered and reused, which is a green and economical process for commercial application.
Study on the Preparation and Characterizations of an Improved Porous Ti/TiO2/CdS‐CNT/C3N4 Photoelectrode and Photoelectric Catalytic Degradation of Methylene Blue
Authors: Shen Jia , Chen Donghui , Zhao Wei , Zhang Wen wen , Zhou Huipin 
Published: April 2018

AbstractThe porous Ti/TiO2/CdS‐CNT/C3N4 photoelectrode were successfully fabricated via anodic oxidation method, chemical electrodeposition and dip‐coating method, respectively. The morphology, crystal structure and elements of the photoelectrodes were characterized by scanning electron microscopy (SEM), X‐ray diffraction (XRD), energy‐dispersive spectroscopy (EDS) and X‐ray photoelectron spectroscopy (XPS) respectively. The cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), linear sweep voltammograms curves (LSV), mott‐schottky (MS) and chronoamperometric curves were applied to research the oxidation‐reduction quality, resistance, carriers concentration and photocurrent stability respectively. Addtionally, the service lifetime of electrodes were measured in accelerated life test. The photo‐ electrocatalytic (PEC) performance of the photoelectrodes were evaluated in the degradation experiment of methylene blue. Compared with the Ti/TiO2 and Ti/TiO2/CdS‐CNT electrode, the Ti/TiO2/CdS‐CNT/C3N4 electrode possesses smaller grain size on the surface, more uniform crystal morphology, lower resistance, bigger photocurrent density, oxygen evolution potential and photogenerated carriers concentration and performed higher PEC activity. Moreover, the generation of much holes, H2O2, and ⋅OH can promote the PEC degradation of organic pollutants. Particularly, C3N4 can further increase ⋅OH generation capacity.