Machine Learning-Based Classification to Improve Gas Chromatography-Mass Spectrometry Data Processing
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Cyclodextrin-Based Rotaxanes for Material Science Applications
Cyclodextrin-Based Rotaxanes for Material Science Applications A thesis submitted for admission to the degree of Doctor of Philosophy By Hwi Young Lee Australian INcUIUMcll University Research School of Chemistry Canberra, Australia April, 2014 Author’s Statement This is to declare that the work in this thesis represents original work that I have undertaken during my PhD degree at the Research School of Chemistry, the Australian National University from 2010 to 2014, except the synthesis and X-ray crystal analysis of the compounds 4.1 and 4.2, and the synthesis of compounds 4.4 and 4.5, which was carried out as part of my PhB Honours degree. To my best of knowledge, the thesis does not contain material that has been published or written by another person or accepted for the award of any other degree of diploma in any other university or tertiary institution, unless due reference has been made in the text. I give consent to this copy of my thesis, when deposited in the University library, being available for loan or photocopying. April 2014 l Acknowledgements I would like to express my most sincere gratitude to my supervisor, Prof. Christopher J. Easton. This work would not have been possible without his guidance, patience and understanding. I appreciate the time and energy you put into students' academic excellence and personal welfare. I am also grateful that you have never stopped providing me with challenges and inspiration. I am extremely grateful to Dr Hideki Onagi for introducing me to cyclodextrin chemistry. I appreciate your willingness to sacrifice your lunch breaks, late evenings and even weekends to share your expertise. -
Bilkent-Graduate Catalog 0.Pdf
ISBN: 978-605-9788-11-3 bilkent.edu.tr ACADEMIC OFFICERS OF THE UNIVERSITY Ali Doğramacı, Chairman of the Board of Trustees and President of the University CENTRAL ADMINISTRATION DEANS OF FACULTIES Abdullah Atalar, Rector (Chancellor) Ayhan Altıntaş, Faculty of Art, Design, and Architecture (Acting) Adnan Akay, Vice Rector - Provost Mehmet Baray, Faculty of Education (Acting) Kürşat Aydoğan, Vice Rector Ülkü Gürler, Faculty of Business Administration (Acting) Orhan Aytür, Vice Rector Ezhan Karaşan, Faculty of Engineering Cevdet Aykanat, Associate Provost Hitay Özbay, Faculty of Humanities and Letters (Acting) Hitay Özbay, Associate Provost Tayfun Özçelik, Faculty of Science Özgür Ulusoy Associate Provost Turgut Tan, Faculty of Law Erinç Yeldan, Faculty of Economics, Administrative, and Social Sciences (Acting) GRADUATE SCHOOL DIRECTORS Alipaşa Ayas, Graduate School of Education [email protected] Halime Demirkan, Graduate School of Economics and Social Sciences [email protected] Ezhan Karaşan, Graduate School of Engineering and Science [email protected] DEPARTMENT CHAIRS and PROGRAM DIRECTORS Michelle Adams, Neuroscience [email protected] Adnan Akay, Mechanical Engineering [email protected] M. Selim Aktürk, Industrial Engineering [email protected] Orhan Arıkan, Electrical and Electronics Engineering [email protected] Fatihcan Atay, Mathematics [email protected] Pınar Bilgin, Political Science and Public Administration [email protected] Hilmi Volkan Demir, Materials Science and Nanotechnology [email protected] Oğuz Gülseren, Physics [email protected] Ahmet Gürata, Communication and Design [email protected] Meltem Gürel, Architecture [email protected] Refet Gürkaynak, Economics [email protected] Ülkü Gürler, Business Administration (Acting) [email protected] H. -
First Insights Into the Impacts of Benthic Cyanobacterial Mats on Fish
www.nature.com/scientificreports OPEN First insights into the impacts of benthic cyanobacterial mats on fsh herbivory functions on a nearshore coral reef Amanda K. Ford 1,2*, Petra M. Visser 3, Maria J. van Herk3, Evelien Jongepier 4 & Victor Bonito5 Benthic cyanobacterial mats (BCMs) are becoming increasingly common on coral reefs. In Fiji, blooms generally occur in nearshore areas during warm months but some are starting to prevail through cold months. Many fundamental knowledge gaps about BCM proliferation remain, including their composition and how they infuence reef processes. This study examined a seasonal BCM bloom occurring in a 17-year-old no-take inshore reef area in Fiji. Surveys quantifed the coverage of various BCM-types and estimated the biomass of key herbivorous fsh functional groups. Using remote video observations, we compared fsh herbivory (bite rates) on substrate covered primarily by BCMs (> 50%) to substrate lacking BCMs (< 10%) and looked for indications of fsh (opportunistically) consuming BCMs. Samples of diferent BCM-types were analysed by microscopy and next-generation amplicon sequencing (16S rRNA). In total, BCMs covered 51 ± 4% (mean ± s.e.m) of the benthos. Herbivorous fsh biomass was relatively high (212 ± 36 kg/ha) with good representation across functional groups. Bite rates were signifcantly reduced on BCM-dominated substratum, and no fsh were unambiguously observed consuming BCMs. Seven diferent BCM-types were identifed, with most containing a complex consortium of cyanobacteria. These results provide insight into BCM composition and impacts on inshore Pacifc reefs. Tough scarcely mentioned in the literature a decade ago, benthic cyanobacterial mats (BCMs) are receiving increasing attention from researchers and managers as being a nuisance on tropical coral reefs worldwide1–4. -
Local Hopping Mobile DNA Implicated in Pseudogene Formation And
Vigil-Stenman et al. BMC Genomics (2015) 16:193 DOI 10.1186/s12864-015-1386-7 RESEARCH ARTICLE Open Access Local hopping mobile DNA implicated in pseudogene formation and reductive evolution in an obligate cyanobacteria-plant symbiosis Theoden Vigil-Stenman1*, John Larsson2, Johan A A Nylander3 and Birgitta Bergman1 Abstract Background: Insertion sequences (ISs) are approximately 1 kbp long “jumping” genes found in prokaryotes. ISs encode the protein Transposase, which facilitates the excision and reinsertion of ISs in genomes, making these sequences a type of class I (“cut-and-paste”) Mobile Genetic Elements. ISs are proposed to be involved in the reductive evolution of symbiotic prokaryotes. Our previous sequencing of the genome of the cyanobacterium ‘Nostoc azollae’ 0708, living in a tight perpetual symbiotic association with a plant (the water fern Azolla), revealed the presence of an eroding genome, with a high number of insertion sequences (ISs) together with an unprecedented large proportion of pseudogenes. To investigate the role of ISs in the reductive evolution of ‘Nostoc azollae’ 0708, and potentially in the formation of pseudogenes, a bioinformatic investigation of the IS identities and positions in 47 cyanobacterial genomes was conducted. To widen the scope, the IS contents were analysed qualitatively and quantitatively in 20 other genomes representing both free-living and symbiotic bacteria. Results: Insertion Sequences were not randomly distributed in the bacterial genomes and were found to transpose short distances from their original location (“local hopping”) and pseudogenes were enriched in the vicinity of IS elements. In general, symbiotic organisms showed higher densities of IS elements and pseudogenes than non-symbiotic bacteria. -
Potential Applications of Native Cyanobacterium Isolate (Arthrospira Platensis NIOF17/003) for Biodiesel Production and Utilizat
sustainability Article Potential Applications of Native Cyanobacterium Isolate (Arthrospira platensis NIOF17/003) for Biodiesel Production and Utilization of Its Byproduct in Marine Rotifer (Brachionus plicatilis) Production Mohamed A. Zaki 1, Mohamed Ashour 2,* , Ahmed M. M. Heneash 2, Mohamed M. Mabrouk 3, Ahmed E. Alprol 2, Hanan M. Khairy 2, Abdelaziz M. Nour 1, Abdallah Tageldein Mansour 4,5 , Hesham A. Hassanien 4,6 , Ahmed Gaber 7 and Mostafa E. Elshobary 8,9,* 1 Animal and Fish Production Department, Faculty of Agriculture, Alexandria University, Alexandria 21545, Egypt; [email protected] (M.A.Z.); [email protected] (A.M.N.) 2 National Institute of Oceanography and Fisheries (NIOF), Cairo 11516, Egypt; [email protected] (A.M.M.H.); [email protected] (A.E.A.); [email protected] (H.M.K.) 3 Fish Division, Animal Production Department, Faculty of Agriculture, Al-Azhar University, Cairo 11823, Egypt; [email protected] 4 Animal and Fish Production Department, College of Agricultural and Food Sciences, King Faisal University, P.O. Box 420, Al-Ahsa 31982, Saudi Arabia; [email protected] (A.T.M.); [email protected] (H.A.H.) 5 Fish and Animal Production Department, Faculty of Agriculture (Saba Basha), Alexandria University, Citation: Zaki, M.A.; Ashour, M.; Alexandria 21531, Egypt Heneash, A.M.M.; Mabrouk, M.M.; 6 Animal Production Department, Faculty of Agriculture, Cairo University, Gamma St., Giza 12613, Egypt Alprol, A.E.; Khairy, H.M.; Nour, 7 Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia; A.M.; Mansour, A.T.; Hassanien, H.A.; [email protected] 8 Gaber, A.; et al. -
Detailed Characterization of the Arthrospira Type Species Separating
www.nature.com/scientificreports OPEN Detailed characterization of the Arthrospira type species separating commercially grown Received: 13 August 2018 Accepted: 27 November 2018 taxa into the new genus Limnospira Published: xx xx xxxx (Cyanobacteria) Paulina Nowicka-Krawczyk 1, Radka Mühlsteinová2 & Tomáš Hauer 2 The genus Arthrospira has a long history of being used as a food source in diferent parts of the world. Its mass cultivation for production of food supplements and additives has contributed to a more detailed study of several species of this genus. In contrast, the type species of the genus (A. jenneri), has scarcely been studied. This work adopts a polyphasic approach to thoroughly investigate environmental samples of A. jenneri, whose persistent bloom was noticed in an urban reservoir in Poland, Central Europe. The obtained results were compared with strains designated as A. platensis, A. maxima, and A. fusiformis from several culture collections and other Arthrospira records from GenBank. The comparison has shown that A. jenneri difers from popular species that are massively utilized commercially with regard to its cell morphology, ultrastructure and ecology, as well as its 16S rRNA gene sequence. Based on our fndings, we propose the establishment of a new genus, Limnospira, which currently encompasses three species including the massively produced L. (A.) fusiformis and L. (A.) maxima with the type species Limnospira fusiformis. Among the simple trichal cyanobacteria, three genera possess helically-coiled trichomes as a prominent dia- critical feature: Spirulina Turpin ex Gomont 1892, Halospirulina Nübel, Garcia-Pichel et Muyzer 2000, and Arthrospira Stizenberger ex Gomont 1892. Te latter is a widely-known taxon with long history of use as a food source, for example as dihé in Africa or tecuitlatl in Mexico1–3. -
Volume 2: Prizes and Scholarships
RESEARCH OPPORTUNITIES ALERT! ISSUE 12: VOLUME 2 (Prizes & Scholarships) A Compilation by the Research Services Unit Office of Research, Innovation and Development (ORID) January 2013 Issue 12: Volume 2 – Prizes & Scholarships JANUARY 2013 MITHSONIAN FELLOWSHIPS Smithsonian Institution S Description: In addition to receiving scholarships, fellows The Smithsonian Institution invites applications will be provided with space to conduct their for its Smithsonian fellowships. These provide research within the department they are opportunities for graduate students, working. An allowance of up to US$4,000 may predoctoral students, and postdoctoral and be available to assist the fellow with research- senior investigators to conduct research in related expenses, and funding towards association with members of the Smithsonian relocation may be provided. professional research staff, and to utilise the resources of the institution. Proposals must reflect one or more of the four grand challenges Closing date: 15 Jan 13 identified by the Smithsonian strategic plan, Deadline information: This call is repeated which include unlocking the mysteries of the once a year. universe; understanding and sustaining a Posted date: 30 Oct 12 biodiverse planet; valuing world cultures; and Award type: Mid-Career fellowships, Senior understanding the American experience. Four fellowships, Predoctoral fellowships, types of fellowships are available: Financial aid for postgraduate students Award amount max: $54,000 graduate student fellowships support Award amount -
January-February 2009 Volume 31 No
The News Magazine of the International Union of Pure and Applied Chemistry (IUPAC) CHEMISTRY International January-February 2009 Volume 31 No. 1 The IUPAC International Periodic Tables Chemical Identifier and IUPAC Celebrating Worldwide Excellence in Chemistry From the Editor CHEMISTRY International omething old, something new, something borrowed, something blue . Sthat recipe is for something else, yet it applies surprisingly well to the The News Magazine of the International Union of Pure and contents of this issue of Chemistry International. Applied Chemistry (IUPAC) Something old would be the description of IUPAC’s position with regard to the periodic table. The feature article by Jeffery Leigh (page 4) www.iupac.org/publications/ci reminds the reader that “IUPAC’s primary concern is with unequivo- Managing Editor: Fabienne Meyers cal and unambiguous commu- Production Editor: Chris Brouwer nication,” and in the context of Design: CB Communications a periodic table format, IUPAC’s recommendation is only for the All correspondence to be addressed to: groups numbering from 1 to 18, and Fabienne Meyers no more. Leigh demonstrates that IUPAC, c/o Department of Chemistry one table does not fit all uses, and Boston University the periodic table as we know it today is an icon often wrongly associ- Metcalf Center for Science and Engineering ated with IUPAC. 590 Commonwealth Ave. Something new would be the focus of Steve Heller and Alan Boston, MA 02215, USA McNaught’s article (page 7) on InChI, known as “in-chee.” The IUPAC International Chemical Identifier (InChI) continues to be developed and E-mail: [email protected] is becoming more widely used throughout the chemistry community. -
FY2011 WPI Project Progress Report (Post-Interim Evaluation)
World Premier International Research Center Initiative (WPI) FY2011 WPI Project Progress Report (Post-Interim Evaluation) Host Institution Tohoku University Host Institution Head Susumu Satomi Research Center WPI Advanced Institute for Materials Research Center Director Motoko Kotani Common instructions: * Unless otherwise specified, prepare this report from the timeline of 31 March 2012. * So as to base this fiscal year’s follow-up review on the document ”Post-interim evaluation revised center project,” please prepare this report from the perspective of the revised project. * Use yen (¥) when writing monetary amounts in the report. If an exchange rate is used to calculate the yen amount, give the rate. Summary of State of WPI Center Project Progress (write within the space of this page) In FY2011, AIMR established a research environment to promote mathematics – materials science collaboration by expanding the Mathematics Unit, setting the three target projects, and establishing new types of researcher positions for the collaboration. These attempts were performed as part of the introduction of a new system towards progress from FY2012, and led to the following achievements. “Conducting research of the highest world level” The level of research at AIMR in the materials field has always been the highest in the world. In FY2011, AIMR’s full-time PIs and their co-workers published 209 papers, with many appearing in high-impact journals such as Nature, Science, Nature Materials, and so on. They gave 117 invited presentations at international meetings, playing active roles in the global arena. External research funds increased in FY2011 (about 2.8 billion yen), indicating the world’s high evaluation of AIMR’s science level. -
Phylogenetic Relationships of Arthrospira Strains Inferred from 16S Rrna Gene and Cpcba-IGS Sequences
Research Article Algae 2012, 27(2): 75-82 http://dx.doi.org/10.4490/algae.2012.27.2.075 Open Access Phylogenetic relationships of Arthrospira strains inferred from 16S rRNA gene and cpcBA-IGS sequences Gang-Guk Choi1, Chi-Yong Ahn1 and Hee-Mock Oh1,* 1Environmental Biotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305- 806, Korea Arthrospira platensis and Arthrospira maxima are species of cyanobacteria used in health foods, animal feed, food additives, and fine chemicals. This study conducted a comparison of the 16S rRNA gene and cpcBA-intergenic spacer (cpcBA-IGS) sequences in Arthrospira strains from culture collections around the world. A cluster analysis divided the 10 Arthrospira strains into two main genotypic clusters, designated I and II, where Group I contained A. platensis SAG 86.79, UTEX 2340, A. maxima KCTC AG30054, and SAG 49.88, while Group II contained A. platensis PCC 9108, NIES 39, NIES 46, and SAG 257.80. However, although A. platensis PCC 9223 belonged to Group II-2 based on its cpcBA-IGS sequence, this strain also belonged to Group I based on its 16S rRNA gene sequence. Phylogenetic analyses based on the 16S rRNA gene and cpcBA-IGS sequences showed no division between A. platensis and A. maxima, plus the 16S rRNA gene and cpcBA- IGS sequence clusters did not indicate any well-defined geographical distribution, instead overlapping in a rather inter- esting way. Therefore, the current study supports some previous conclusions based on 16S rRNA gene and cpcBA-IGS sequences, which found that Arthrospira taxa are monophyletic. -
Long-Term Cultivation of a Native Arthrospira Platensis (Spirulina)
processes Article Long-Term Cultivation of a Native Arthrospira platensis (Spirulina) Strain in Pozo Izquierdo (Gran Canaria, Spain): Technical Evidence for a Viable Production of Food-Grade Biomass Flavio Guidi * , Zivan Gojkovic , Marianna Venuleo , Patrícia Alexandra Clemente Janeiro Assunçao and Eduardo Portillo Instituto Tecnológico de Canarias (ITC), Playa de Pozo Izquierdo, s/n, Santa Lucía de Tirajana, 35119 Gran Canaria, Spain; [email protected] (Z.G.); [email protected] (M.V.); [email protected] (P.A.C.J.A.); [email protected] (E.P.) * Correspondence: [email protected] or [email protected]; Tel.: +34-928-727-617 Abstract: Microalgae cultivation is a promising alternative to traditional agriculture in arid—semi- arid areas. The aim of this study is to assess the viability of long-term cultivation of native Arthrospira platensis in Gran Canaria. Maximum culture productivity (0.08 g/L/day) and optimal concentration range (0.6–0.9 g/L) were firstly determined in 8000 L raceway under a greenhouse. Afterwards, a stable productivity of 0.06 g/L/day (6.0 g/m2/day) was obtained by reusing the culture medium Citation: Guidi, F.; Gojkovic, Z.; during 26 days of cultivation, with consistent biomass biochemical composition. Outdoor tempera- Venuleo, M.; Assunçao, P.A.C.J.; ture and daily solar irradiation ranged between 17.9–30.7 ◦C and 79.2–274.8 W/m2, while culture pH Portillo, E. Long-Term Cultivation of and salinity were in the range 9.42–10.77 and 11.2–14.9 g/L, respectively. Protein (>60%), potassium a Native Arthrospira platensis (Spirulina) Strain in Pozo Izquierdo (1.8 g/100 g) and C-phycocyanin (7.2%) content is in the high-range of commercial Spirulina, which (Gran Canaria, Spain): Technical makes BEA 1257B promising for food and extraction of natural pigments/antioxidants. -
Curriculum Vitae
Curriculum Vitae April 6, 2018 Name: Susumu KITAGAWA Date of birth: July 4, 1951 Title: Distinguished Professor, PhD (KUIAS) Director, Institute for Integrated Cell-Material Sciences (iCeMS) Affiliation: Kyoto University Institute for Advanced Study (KUIAS) Institute for Integrated Cell-Material Sciences, (iCeMS), Kyoto University Yoshida Ushinomiya-cho, Sakyo-ku, Kyoto 606-8501, Japan Telephone, FAX, Email, Website: TEL: +81-75-753-9740, FAX: +81-75-753-9742 Email: [email protected] Homepage: http://www.kitagawa.icems.kyoto-u.ac.jp Education: 1975-1979 Kyoto University, Graduate School, Hydrocarbon Chemistry, PhD degree 1971-1974 Kyoto University, Undergraduate course, Hydrocarbon Chemistry Professional Appointments: 2017-Present Distinguished Professor, PhD 2016-2017 Deputy Director-General (KUIAS) 2013-Present Director, Institute for Integrated Cell-Material Sciences, Kyoto University 2007-2012 Deputy Director, Institute for Integrated Cell-Material Sciences, Kyoto University 1998-2016 Professor, Department of Synthetic Chemistry & Biological Chemistry, Kyoto University 1992-1998 Professor, Department of Chemistry, Tokyo Metropolitan University 1988-1992 Associate Professor, Department of Chemistry, Kinki University 1986-1987 Visiting Scientist, Department of Chemistry, Texas A & M University F. A. Cotton Laboratory 1983-1988 Lecturer, Department of Chemistry, Kinki University 1979-1983 Assistant Professor, Department of Chemistry, Kinki University Award: 2017 Chemistry for the Future Solvay Prize 2017 2017 Clarivate Analytics