Carbon Materials Supported Metal Nanostructures for Efficient Catalytic Organic Transformations （金属ナノ粒子および炭素材料を用いた触媒による有機化学反応の高効率化）

信州大学(Shinshu university)博士（学術）この博士論文は、次の学術雑誌論文を一部に使用しています。JOURNAL OF PHYSICAL CHEMISTRY C. 117(45):23582-23596 (2013); doi:10.1021/jp402978q. © 2013 American Chemical Society.CARBON. 62:135-148 (2013); doi:10.1016/j.carbon.2013.06.005. © 2013 Elsevier Ltd.CATALYSIS SCIENCE & TECHNOLOGY. 3(6):1485-1489 (2013); doi:10.1039/c3cy20735h. © 2013 Royal Society of Chemistry.ThesisMAYAKRISHNAN GOPIRAMAN. Carbon Materials Supported Metal Nanostructures for Efficient Catalytic Organic Transformations （金属ナノ粒子および炭素材料を用いた触媒による有機化学反応の高効率化）. 信州大学, 2014, 博士論文. 博士（学術）, 甲第81号, 平成26年3月20日授与.doctoral thesi

Elicitor And Precursor Enhanced Production Of Limonene In Citrus Grandis (L) Osbeck Albedo Tissue Cultures [QK725. T366 2008 f rb].

Kesan ekstrak yis sebagai elisitor bersama linalool dan asid mevalonik (MVA) sebagai prekursor telah dikaji pada kepekatan dan masa pengkulturan yang berbeza untuk menentukan pertumbuhan tisu dan penghasilan limonene/linalool ke atas tisu albedo Citrus grandis Osbeck. The effects of yeast extract as an elicitor together with linalool and mevalonic acid (MVA) as precursors were studied at various concentrations and time period to determine tissue growth and limonene/linalool production on Citrus grandis Osbeck albedo tissues

Preparation, Characterization, and Applications of Electrospun Carbon Nanofibers and Its Composites

Carbon nanofibers (CNFs) and its composites have gained vast attention due to its exceptional chemical and textural properties. So far, various multifunctional carbon nanofibers and its composites are developed with highly unique and tunable morphology. In this chapter, we reviewed unique fabrication methods that are recently reported and its characterization techniques such as SEM, FE-SEM, TEM, WAXD, XPS, AFM, and Raman. In addition, catalytic, energy, and environmental applications of carbon nanofiber composites (metals and/or metal oxide nanoparticles incorporated and/or decorated hybrid carbon nanofibers) are discussed. Preparation and characterization of electrospun carbon nanofiber composites and its applications in catalysis and energy storage are the main focus of this chapter

Carbon Nanocomposites: Preparation and Its Application in Catalytic Organic Transformations

Carbon nanocomposites have gained huge interest in catalysis due to their small size and shape-dependent physicochemical properties. Particularly, metal nanostructures/carbon materials (mainly graphene and carbon nanotubes) based nanocomposites demonstrated extraordinary catalytic activity in organic reactions. The catalytic products prepared by using carbon nanocomposites are found to be highly valuable in various fields including pharmaceutical, biomedical, agricultural, and material sciences. Hence, the demand of carbon nanocomposites has been increasing rapidly, and the development of novel preparation methods also deserve a special concern. In this chapter, we discuss the main advances in the field over the last few years and explore the novel preparation methods of carbon nanocomposites (metal nanostructures/carbon materials) and their applications in various catalytic organic transformations

Penerapan Bermain Messy Play dalam Meningkatkan Kemampuan Motorik Halus Anak Tk Kelompok A

Salah satu aspek kemampuan yang penting untuk dikembangkan pada anak usia dini adalahkemampuan motorik halus anak. Kemampuan motorik halus membantu anak untukmemperoleh kemandiriannya, membantu mendapatkan penerimaan sosial, dan dapatmenimbulkan rasa percaya diri pada anak. Kemampuan motorik halus dapat ditingkatkan melaluibermain messy play. Messy Play merupakan jenis permainan yang merangsang sensor motorikhalus dan kasar.Permainan ini dilakukan anak baik di alam terbuka maupun di dalam ruangandan membuat tubuh anak menjadi kotor, sehingga dikatakan dengan bermain messy play.Selaintubuh anak aktif, anak juga akan belajar mengkoordinasikan panca inderanya melalui sentuhan,bau, rasa, pendengaran, dan penglihatan. Tujuan dalam penelitian ini yaitu (1)mendeskripsikanpenerapan bermain messy play dalam meningkatkan kemampuan motorik halus anak KelompokA, (2) Mendeskripsikan hasil penerapan bermain messy play dalam meningkatkan kemampuanmotorik halus anak Kelompok A. Sedangkan luaran yang ditargetkan dalam penelitian ini adalahtersedianya perangkat pembelajaran dengan penerapan bermain Messy Play untukmeningkatkan kemampuan motorik halus pada anak TK kelompok A. Metode yang digunakandalam penelitian ini adalah metode penelitian tindakan kelas (PTK) yang dilakukan melalui 4tahapan dalam setiap siklusnya. Adapun tahapan tersebut adalah: (1) perencanaan, (2)pelaksanaan, (3) observasi, dan (4) refleksi. Penelitian ini dilaksanakan di TK Aisyiyah BustanulAthfal Kalibader dengan 2 siklus. Siklus I dilakukan empat kali pertemuan, jika dalam siklus Ibelum berhasil, maka dilakukan siklus II dengan tiga kali pertemuan. Teknik pengumpulan datamenggunakan observasi, lembar asesmen, wawancara dan dokumentasi. Hasil penerapanbermain messy play dapat meningkatkan kemampuan motorik halus anak kelompok A di TKAisyiyah Kalibader. Hal ini dibuktikan adanya peningkatan pada nilai ketuntasan di siklus I dansiklus II. Pada siklus I ketuntasan nilai keseluruhan kelompok A adalah 65%, dan pada siklus IIketuntasan nilai keseluruhan kelompok A adalah 88,1%. Hal ini membuktikan adanya peningkatankemampuan motorik halus anak kelompok A setelah dilakukan penerapan bermain messy play

Modulation of transcription and alternative splicing by spliceosome-activating nineteen complex (NTC) in Arabidopsis thaliana

Components of the spliceosome activating NTC (Nineteen Complex) are conserved in eukaryotes and their mutations in mammals result in early embryonic lethality. In Arabidopsis, the core PRL (PLEIOTROPIC REGULATORY LOCUS) NTC subunit is encoded by two closely related genes PRL1 and PRL2. This provides the unique opportunity to study the regulatory roles of NTC using mutations of the PRL homologs. Whereas inactivation of PRL1 results in dwarfism, early flowering, altered leaf development and hypersensitivity to low temperature, sucrose, ABA and cytokinin, the prl2 mutations cause embryo lethality at the heart stage. Compared to PRL1, the PRL2 mRNA level is about 10-fold lower in both wild type and prl1 mutant seedlings. The viability of prl1 mutant is thus likely maintained by partially overlapping function of PRL2, which secures reduced but still sufficient level of spliceosome activation. Main aim of this work was to characterize the roles of PRL1 and PRL2 in the regulation of transcription and alternative splicing. Deep RNA-Seq analysis identified 5,814 differential expression (DE) and alternative splicing (DAS) events indicating 5-fold higher representation of unspliced introns in upregulated versus downregulated mRNA isoforms in the prl1 mutant compared to wt. About 25% of DAS events identified altered splice sites, and 30% changed mRNA’s ORF removing either N-terminal organellar or secretion signal peptides, or increasing C-terminal distance between polyA and translational stop codons to enhance mRNA degradation by nonsense-mediated decay (NMD). 25% of DE mRNAs carried alternative 5’ or 3’ ends indicating that the prl1 mutation also influences the positions of transcription start and polyadenylation/cleavage. Functional reannotation and GO analysis of dataset indicated upregulation of genes involved in cell division, UV response, DNA repair, iron uptake, anthocyanin biosynthesis, and ABA/oxidative stress responses, in contrast to downregulation of genes in cell elongation, vesicular transport, auxin signaling and redox-regulated pathogen defense and cell death pathways correlating with known phenotypic traits of the prl1 mutant. In a subset of DE genes, we characterized the effect of prl1 mutation on alternative splicing of ribosomal protein genes. To obtain prl2 mutant cell populations, we used a conditional genetic complementation system for generation of genetic mosaics, in which the prl2 mutant sectors were labelled by expression of the green fluorescent protein (GFP). Following enrichment of mosaic sectors in callus and cell suspension cultures, the GFP+ prl2 and GFP- wild type cell populations were separated by cell sorting and subjected to a similar deep RNA-Seq analysis. This study identified 6314 DE/DAS events, which were compared to those observed in prl1. This lead to the identification of numerous candidate genes implicated in meiotic recombination, fertilization, embryogenesis, DNA replication and post-embryonic development which are differentially downregulated in the prl2 mutant. These data suggest that NTC complexes carrying PRL1 and PRL2 control transcription and splicing of mRNAs coding for both overlapping and distinct cellular functions

Allometry coefficient variations of length-weight relationship of Scombridae family caught along the Tuticorin coast, Bay of Bengal

496-500The present study assesses length-weight relationship (LWR) of Auxis thazard, Auxis rochei, Euthynnus affinis, and Katsuwonus pelamis caught by gill net along the Tuticorin coastal area. The fitted regression model resulted (log-transformed) in slope values extending from 2.9 to 3.8. The logarithmic data exhibiting the exponent value b > 3 and b K. pelamis (b K. pelamis, which exhibited negative allometric growth. Findings in the present study conclude that LWR does not follow the cubic relationship. Furthermore, studies should be carried out for more fish species to enlighten biologists about the status and growth condition of the fishes in the natural waters

PSO based optimized PI controller design for hybrid active power filter

This research study presents the design and simulation of a hybrid active power filter (HAPF) for reducing harmonics. The reference currents have been determined using the synchronous reference frame technique. To achieve its goals, the proposed HAPF employs AI algorithm known as particle swarm optimization (PSO) to fine-tune the proportional-integral PI controller's parameters. With the help of PI-PSO controller the DC link voltage is regulated in the HAPF-inverter. A non-linear current control strategy based on hysteresis employed here to construct the pulse gate by comparing the retrieved reference and real currents necessitated by the HAPF. Simulations were carried out in MATLAB and shown that the proposed method is extremely adaptable and efficient in reducing harmonic currents caused by non-linear loads

Catalytic N-oxidation of tertiary amines on RuO(2)NPs anchored graphene nanoplatelets

Ultrafine ruthenium oxide nanoparticles (RuO2NPs) with an average diameter of 1.3 nm were anchored on graphene nanoplatelets (GNPs) using a Ru(acac)3 precursor by a very simple dry synthesis method. The resultant material (GNPs–RuO2NPs) was used as a heterogeneous catalyst for the N-oxidation of tertiary amines for the first time. The transmission electron microscopy (TEM) images of the GNPs–RuO2NPs showed the excellent attachment of RuO2NPs on GNPs. The loading of Ru in GNPs–RuO2NPs was 2.68 wt%, as confirmed by scanning electron microscope-energy dispersive spectroscopy (SEM-EDS). The X-ray photoelectron spectrum (XPS) and the X-ray diffraction pattern (XRD) of GNPs–RuO2NPs revealed that the chemical state of Ru on GNPs was +4. After the optimization of reaction conditions for N-oxidation of triethylamine, the scope of the reaction was extended to various aliphatic, alicyclic and aromatic tertiary amines. The GNPs–RuO2NPs showed excellent catalytic activity in terms of yields even at a very low amount of Ru catalyst (0.13 mol%). The GNPs–RuO2NPs was heterogeneous in nature, chemically as well as physically, very stable and could be reused up to 5 times.ArticleCATALYSIS SCIENCE & TECHNOLOGY. 4(7):2099-2106 (2014)journal articl