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DTSTART;TZID=Europe/Stockholm:20210823T151500
DTEND;TZID=Europe/Stockholm:20210823T163000
DTSTAMP:20260511T051009
CREATED:20210816T071003Z
LAST-MODIFIED:20210816T093408Z
UID:10000406-1629731700-1629736200@www.scilifelab.se
SUMMARY:SciLifeLab The Svedberg seminar: Prof. Athula Attygalle
DESCRIPTION: Stevens Institute of Technology\, USA \n\n\n\n\n\n\n\n\n\nLINK TO SEMINAR \n\n\n\n Prof. Athula Attygalle obtained a PhD in Chemistry from Keele University in 1983. After his doctorate\, Attygalle was awarded a Fellowship by the Humboldt Foundation to conduct research at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) under late Prof\, Hans Jürgen Bestmann\, a pioneer in the field of insect pheromone synthesis. Four years at FAU\, provided the impetus for Attygalle to become an expert in high-resolution mass spectrometry and micro-chemical techniques for structure elucidation of natural compounds at nanogram level. At FAU\, Attygalle championed in the area of lepidopteran sex pheromone identification. Attygalle was a visiting professor at University of Houston\, Texas and he has served as the Director of Mass Spectrometry facility at Cornell University. He has completed work there in GC-MS regarding insect substances and their identifications.  Currently Attygalle is attached to the Stevens Institute of Technology as a Research Professor in the Department of Chemistry and head of the mass spectrometry laboratory. Attygalle was the recipient of the 2014 ‘Inventor of the Year’ award presented by the New Jersey Inventors Hall of Fame for his patented work in Mass Spectrometric Analysis utilizing Helium Plasma and charge exchange ionization techniques. Attygalle co-authored the 1999 article “Single-Site Catalysts for Ring-Opening Polymerization:  Synthesis of Heterotactic Poly(lactic acid) from rac-Lactide” in the Journal of the American Chemical Society\, which has been widely cited. \n\n\n\nMultiple Personalities of Gaseous Ions \n\n\n\nFor mass spectrometry\, neutral molecules are converted to gaseous ions.   A mass spectrum is recorded by determining the mass-to-charge ratios and intensities of fragment ions generated by activating a specific ion. Many textbooks provide rules to identify molecules by interpreting their mass spectra.  All recommended interpretations start by presuming a specific structure for the initial ion.  However\, recent advances in ion-mobility methods demonstrate that an ensemble of ions with different structures are produced upon ionization. For example\, the most widely used electrospray ionization technique often generates a mixture of tautomeric forms of a precursor molecule.  Because fragmentation spectra of individual tautomers are often different from each other\, the spectra recorded without separating the isomeric mixtures are composites.  Although large collections of spectra are available as libraries\, the time has come to for us query of the quality of these compilations.                    \n\n\n\nHost: Kumari Ubhayasekera
URL:https://www.scilifelab.se/event/scilifelab-the-svedberg-seminar-prof-athula-attygalle/
LOCATION:Online event via Zoom
CATEGORIES:Event
ORGANIZER;CN="The Svedberg Seminar Series":MAILTO:thesvedberg@scilifelab.uu.se
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Stockholm:20210524T151500
DTEND;TZID=Europe/Stockholm:20210524T163000
DTSTAMP:20260511T051009
CREATED:20210521T083002Z
LAST-MODIFIED:20210521T094043Z
UID:10000390-1621869300-1621873800@www.scilifelab.se
SUMMARY:SciLifeLab The Svedberg seminar: Ehab Abouheif
DESCRIPTION:Prof. Ehab Abouheif\n\n\n\nDepartment of Biology\, McGill University\, Canada \n\n\n\nLINK TO SEMINAR \n\n\n\n\n\n\n\nAbouheif received a PhD in Biology from Duke University in 2002\, and from 2002 to 2004\, he completed his postdoctoral studies at the University of Chicago and at the University of California\, Berkeley. In 2004 Abouheif was appointed Assistant Professorship at McGill University as Canada Research Chair (tier 2) in Evolutionary Developmental Biology. Currently\, he is a James McGill Professor in the Department of Biology at McGill University. He is a pioneer of eco-evo-devo\, a field that integrates the concepts and technical tools of ecology\, evolutionary\, and developmental biology. Abouheif focuses on ant societies to understand the origins and evolution of complex biological systems. He served as founding President of the Pan-American Society for Evolutionary Developmental Biology and is currently Editor-in-Chief of JEZ-B: Molecular and Developmental Evolution\, one of the main journals in his field. \n\n\n\nDarwin’s invisible ink: The storage and release of ancestral genetic potential in complex biological systems\n\n\n\nAncestral and dormant genetic potentials exist in all animals\, as reflected by the sporadic appearance of ancestral traits in individuals that normally should not have them\, such as teeth in a chicken or hindlimbs in a whale. Such individuals are traditionally thought to be “freaks” that contribute little to the evolutionary process. Abouheif’s lab\, using supersoldier ants as their model\, has changed this traditional view by demonstrating that evolution can harness dormant genetic potentials after they have been released by certain environmental triggers. His lab also demonstrated that rudimentary organs\, like the human appendix\, are not functionless. Rather\, they can play key regulatory functions during development and store this ancestral genetic  potential over millions of years. These discoveries open up future possibilities for harnessing dormant genetic potentials to advance medicine\, biodiversity conservation\, and animal/plant breeding. \n\n\n\nHost: Arild HusbyRead more about Ehab Abouheif´s research
URL:https://www.scilifelab.se/event/scilifelab-the-svedberg-seminar-ehab-abouheif/
CATEGORIES:Event
ORGANIZER;CN="The Svedberg Seminar Series":MAILTO:thesvedberg@scilifelab.uu.se
LOCATION:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Stockholm:20210524T151500
DTEND;TZID=Europe/Stockholm:20210524T161500
DTSTAMP:20260511T051009
CREATED:20210518T081818Z
LAST-MODIFIED:20210524T113122Z
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SUMMARY:SciLifeLab The Svedberg seminar: Prof. Ehab Abouheif
DESCRIPTION:Ehab Abouheif\n\n\n\nDepartment of Biology\, McGill University\, Canada \n\n\n\nLINK TO SEMINAR \n\n\n\n Abouheif received a PhD in Biology from Duke University in 2002\, and from 2002 to 2004\, he completed his postdoctoral studies at the University of Chicago and at the University of California\, Berkeley. In 2004 Abouheif was appointed Assistant Professorship at McGill University as Canada Research Chair (tier 2) in Evolutionary Developmental Biology. Currently\, he is a James McGill Professor in the Department of Biology at McGill University. He is a pioneer of eco-evo-devo\, a field that integrates the concepts and technical tools of ecology\, evolutionary\, and developmental biology. Abouheif focuses on ant societies to understand the origins and evolution of complex biological systems. He served as founding President of the Pan-American Society for Evolutionary Developmental Biology and is currently Editor-in-Chief of JEZ-B: Molecular and Developmental Evolution\, one of the main journals in his field. \n\n\n\nDarwin’s invisible ink: The storage and release of ancestral genetic potential in complex biological systems\n\n\n\nAncestral and dormant genetic potentials exist in all animals\, as reflected by the sporadic appearance of ancestral traits in individuals that normally should not have them\, such as teeth in a chicken or hindlimbs in a whale. Such individuals are traditionally thought to be “freaks” that contribute little to the evolutionary process. Abouheif’s lab\, using supersoldier ants as their model\, has changed this traditional view by demonstrating that evolution can harness dormant genetic potentials after they have been released by certain environmental triggers. His lab also demonstrated that rudimentary organs\, like the human appendix\, are not functionless. Rather\, they can play key regulatory functions during development and store this ancestral genetic  potential over millions of years. These discoveries open up future possibilities for harnessing dormant genetic potentials to advance medicine\, biodiversity conservation\, and animal/plant breeding. \n\n\n\nHost: Arild Husby \n\n\n\nRead more about Ehab Abouheif´s research
URL:https://www.scilifelab.se/event/scilifelab-the-svedberg-seminars-prof-ehab-abouheif/
CATEGORIES:Event
ORGANIZER;CN="The Svedberg Seminar Series":MAILTO:thesvedberg@scilifelab.uu.se
LOCATION:https://www.scilifelab.se/event/scilifelab-the-svedberg-seminars-prof-ehab-abouheif/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Stockholm:20210518T151500
DTEND;TZID=Europe/Stockholm:20210518T161500
DTSTAMP:20260511T051009
CREATED:20210428T094603Z
LAST-MODIFIED:20210512T085641Z
UID:10000369-1621350900-1621354500@www.scilifelab.se
SUMMARY:Statistical and machine learning techniques in microbiome research
DESCRIPTION:Leo Lahti\n\n\n\nDepartment of Computing\, University of Turku\, Turku\, Finland \n\n\n\nLINK TO SEMINAR \n\n\n\nLeo Lahti is associate professor in data science in University of Turku\, Finland. After completing his PhD in Aalto University\, Finland\, in 2010 he carried out several years of postdoctoral research in The Netherlands and Belgium on population studies of the human microbiome. Lahti has organized various international training events in microbiome bioinformatics\, and he is the Finnish coordinator of the COST action on statistical and machine learning methods in microbiome studies. \n\n\n\nStatistical and machine learning techniques in microbiome research\n\n\n\nThe diverse microbial communities living in human body have a profound influence on our well-being. Human microbiome research has expanded rapidly following the recent advances in high-throughput DNA sequencing and other omics’ technologies. Consequently\, the demand for targeted computational methods has increased significantly in the recent years. We have a limited understanding of the overall mechanisms that control the observed variation and activity of these microbial ecosystems. Our observations have contributed to the systematic characterization of the individual dynamics and population variation of the human microbiome. I will discuss contemporary topics in statistical analysis and machine learning related to microbiome research\, with a specific emphasis on probabilistic latent variable models in understanding the individual and dynamic variation across the landscape of microbiome composition. \n\n\n\nHost: Anders Andersson \n\n\n\nRead more about Leo Lahti´s research
URL:https://www.scilifelab.se/event/statistical-and-machine-learning-techniques-in-microbiome-research/
CATEGORIES:Event
ORGANIZER;CN="The Svedberg Seminar Series":MAILTO:thesvedberg@scilifelab.uu.se
LOCATION:https://www.scilifelab.se/event/statistical-and-machine-learning-techniques-in-microbiome-research/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Stockholm:20210510T131500
DTEND;TZID=Europe/Stockholm:20210510T140000
DTSTAMP:20260511T051009
CREATED:20210428T092922Z
LAST-MODIFIED:20210507T075745Z
UID:10000367-1620652500-1620655200@www.scilifelab.se
SUMMARY:A more sustainable chemistry with elemental sulfur
DESCRIPTION:Thanh Binh Nguyen\n\n\n\nUniversité Paris-Saclay\, France\n\n\n\nLINK TO THE SEMINAR\n\n\n\nAbstract\n\n\n\nFacing a more and more rapid depletion of natural resources\, one of the most challenging problems to be solved of modern organic chemistry is to develop reactions enabling access to target molecules from simple and readily available starting materials with higher efficiency in number of atoms while reducing the number of steps\, unnecessary redox changes and waste. With this idea in mind\, we have been concentrating on the use of elemental sulfur – an abundant waste of oil and gas industry with annual product up to 70 MT –  as a polyvalent synthetic tool. This lecture will focus on organic redox reactions developed in our laboratory involving this element as a new synthetic strategy that satisfies most of the requirements of a more sustainable chemistry. \n\n\n\nBiography\n\n\n\nThanh Binh Nguyen received his BS degree (2004) from the University of Natural Sciences in Hochiminh city\, Vietnam and subsequently his MS (2005) and PhD degrees (2008) from the the Université du Maine – Le Mans -France. After a two-year postdoctoral stay at the Institut de Chimie des Substances Naturelles – Gif-sur-Yvette – France\, he obtained a permanent research associate position (Chargé de Recherche) of the Centre National de la Recherche Scientifique (CNRS) in 2011\, working in the same institute. His main research interest is the development of new synthetic methods for carbon-nitrogen bond formation with a strong emphasis on using elemental sulfur\, molecular iodine and iron–sulfur catalysts. \n\n\n\nHost\n\n\n\nDuc Duy Vo\, Uppsala University
URL:https://www.scilifelab.se/event/a-more-sustainable-chemistry-with-elemental-sulfur/
CATEGORIES:Event
ORGANIZER;CN="The Svedberg Seminar Series":MAILTO:thesvedberg@scilifelab.uu.se
LOCATION:https://uu-se.zoom.us/j/65768822626
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