The Ocean Genome: Conservation and the Fair, Equitable and Sustainable Use of Marine Genetic Resources
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Mobile Genetic Elements in Streptococci
Curr. Issues Mol. Biol. (2019) 32: 123-166. DOI: https://dx.doi.org/10.21775/cimb.032.123 Mobile Genetic Elements in Streptococci Miao Lu#, Tao Gong#, Anqi Zhang, Boyu Tang, Jiamin Chen, Zhong Zhang, Yuqing Li*, Xuedong Zhou* State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China. #Miao Lu and Tao Gong contributed equally to this work. *Address correspondence to: [email protected], [email protected] Abstract Streptococci are a group of Gram-positive bacteria belonging to the family Streptococcaceae, which are responsible of multiple diseases. Some of these species can cause invasive infection that may result in life-threatening illness. Moreover, antibiotic-resistant bacteria are considerably increasing, thus imposing a global consideration. One of the main causes of this resistance is the horizontal gene transfer (HGT), associated to gene transfer agents including transposons, integrons, plasmids and bacteriophages. These agents, which are called mobile genetic elements (MGEs), encode proteins able to mediate DNA movements. This review briefly describes MGEs in streptococci, focusing on their structure and properties related to HGT and antibiotic resistance. caister.com/cimb 123 Curr. Issues Mol. Biol. (2019) Vol. 32 Mobile Genetic Elements Lu et al Introduction Streptococci are a group of Gram-positive bacteria widely distributed across human and animals. Unlike the Staphylococcus species, streptococci are catalase negative and are subclassified into the three subspecies alpha, beta and gamma according to the partial, complete or absent hemolysis induced, respectively. The beta hemolytic streptococci species are further classified by the cell wall carbohydrate composition (Lancefield, 1933) and according to human diseases in Lancefield groups A, B, C and G. -
Early Stages of Fishes in the Western North Atlantic Ocean Volume
ISBN 0-9689167-4-x Early Stages of Fishes in the Western North Atlantic Ocean (Davis Strait, Southern Greenland and Flemish Cap to Cape Hatteras) Volume One Acipenseriformes through Syngnathiformes Michael P. Fahay ii Early Stages of Fishes in the Western North Atlantic Ocean iii Dedication This monograph is dedicated to those highly skilled larval fish illustrators whose talents and efforts have greatly facilitated the study of fish ontogeny. The works of many of those fine illustrators grace these pages. iv Early Stages of Fishes in the Western North Atlantic Ocean v Preface The contents of this monograph are a revision and update of an earlier atlas describing the eggs and larvae of western Atlantic marine fishes occurring between the Scotian Shelf and Cape Hatteras, North Carolina (Fahay, 1983). The three-fold increase in the total num- ber of species covered in the current compilation is the result of both a larger study area and a recent increase in published ontogenetic studies of fishes by many authors and students of the morphology of early stages of marine fishes. It is a tribute to the efforts of those authors that the ontogeny of greater than 70% of species known from the western North Atlantic Ocean is now well described. Michael Fahay 241 Sabino Road West Bath, Maine 04530 U.S.A. vi Acknowledgements I greatly appreciate the help provided by a number of very knowledgeable friends and colleagues dur- ing the preparation of this monograph. Jon Hare undertook a painstakingly critical review of the entire monograph, corrected omissions, inconsistencies, and errors of fact, and made suggestions which markedly improved its organization and presentation. -
From the Human Genome Project to Genomic Medicine a Journey to Advance Human Health
From the Human Genome Project to Genomic Medicine A Journey to Advance Human Health Eric Green, M.D., Ph.D. Director, NHGRI The Origin of “Genomics”: 1987 Genomics (1987) “For the newly developing discipline of [genome] mapping/sequencing (including the analysis of the information), we have adopted the term GENOMICS… ‘The Genome Institute’ Office for Human Genome Research 1988-1989 National Center for Human Genome Research 1989-1997 National Human Genome Research Institute 1997-present NHGRI: Circa 1990-2003 Human Genome Project NHGRI Today: Characteristic Features . Relatively young (~28 years) . Relatively small (~1.7% of NIH) . Unusual historical origins (think ‘Human Genome Project’) . Emphasis on ‘Team Science’ (think managed ‘consortia’) . Rapidly disseminating footprint (think ‘genomics’) . Novel societal/bioethics research component (think ‘ELSI’) . Over-achievers for trans-NIH initiatives (think ‘Common Fund’) . Vibrant (and large) Intramural Research Program A Quarter Century of Genomics Human Genome Sequenced for First Time by the Human Genome Project Genomic Medicine An emerging medical discipline that involves using genomic information about an individual as part of their clinical care (e.g., for diagnostic or therapeutic decision- making) and the other implications of that clinical use The Path to Genomic Medicine ? Human Realization of Genome Genomic Project Medicine Nature Nature Base Pairs to Bedside 2003 Heli201x to 1Health A Quarter Century of Genomics Human Genome Sequenced for First Time by the Human Genome Project -
24 August 2021 Aperto
AperTO - Archivio Istituzionale Open Access dell'Università di Torino Ultrasonically improved semi-hydrogenation of alkynes to (Z-)alkenes over novel lead-free Pd/Boehmite catalysts This is the author's manuscript Original Citation: Availability: This version is available http://hdl.handle.net/2318/1660710 since 2018-02-26T14:04:54Z Published version: DOI:10.1016/j.ultsonch.2016.05.019 Terms of use: Open Access Anyone can freely access the full text of works made available as "Open Access". Works made available under a Creative Commons license can be used according to the terms and conditions of said license. Use of all other works requires consent of the right holder (author or publisher) if not exempted from copyright protection by the applicable law. (Article begins on next page) 29 September 2021 This is an author version of the contribution published on: Questa è la versione dell’autore dell’opera: [Ultrasonically improved semi-hydrogenation of alkynes to (Z-)alkenes over novel lead-free Pd/Boehmite catalysts DOI: 10.1016/j.ultsonch.2016.05.019] ovvero [Zhilin Wu, Giancarlo Cravotto, Emanuela Calcio Gaudino, Agnese Giacomino, Jonathan Medlock, Werner Bonrath., Ultrasonics Sonochemistry 35 (2017) 664–672] The definitive version is available at: La versione definitiva è disponibile alla URL: [www.journals.elsevier.com] 1 Ultrasonically improved semi-hydrogenation of alkynes to (Z-)alkenes over novel lead-free Pd/Boehmite catalysts Zhilin Wua, Giancarlo Cravottoa*, Emanuela Calcio Gaudinoa, Agnese Giacominoa, Jonathan Medlockb, Werner Bonrathb. a Dipartimento di Scienza e Tecnología del Farmaco, Universty of Turin, Via P. Giuria 9, I-10125 Turin, Italy. b DSM Nutritional Products Ltd., Research and Development, P.O. -
A Review on Sonochemistry and Its Environmental Applications
acoustics Review A Review on Sonochemistry and Its Environmental Applications Ba¸sakSavun-Hekimo˘glu Institute of Marine Sciences and Management, Istanbul University, 34134 Istanbul,˙ Turkey; [email protected] Received: 10 September 2020; Accepted: 23 October 2020; Published: 25 October 2020 Abstract: Sonochemistry is a significant contributor to green science as it includes: (i) the use of less toxic compounds and environmentally safe solvents, (ii) improvement of reaction conditions and selectivity, (iii) no toxic sludge generation, (iv) reduction in the energy use for chemical transformations, (v) reusability of materials. In water and wastewater treatment, ultrasound is used as an advanced oxidation process to eliminate refractory pollutants. Ultrasound is also used as a very effective sludge pretreatment technology in wastewater treatment plants to facilitate biogas production. Moreover, sonochemical synthesis of nanoparticles has recently attracted great attention as a greener protocol. This paper presents the main applications of ultrasound in environmental remediation and protection. The study also introduces mechanism for the degradation of pollutants from water via sonication in aqueous media and the principle factors affecting the cavitational effect. Keywords: ultrasound; sonocatalysis; water treatment; sludge pretreatment; nanomaterials 1. Introduction to Sonochemistry Sonochemistry is a field that studies the enhancement of chemical reaction and mass transfer rates under various ultrasonic conditions. Ultrasound is characterized as any sound wave at frequencies above normal human ear hearing range (i.e., above 16 kHz). The mechanism causing sonochemical effects in liquids is the phenomenon of acoustic cavitation. When ultrasound waves propagate in a liquid medium, they generate a repeating pattern of compressions and rarefactions to supply energy to the liquid phase. -
1.41 Sonochemistry
1.41 Sonochemistry K. S. SUSLICK University of Illinois at Urbana-Champaign, Urbana, IL, USA 1.41.1 INTRODUCTION 731 1.41.1.1 Acoustic Cavitation 732 1.41.1.2 Microjet Formation During Cavitation at Liquid–Solid Interfaces 733 1.41.2 SONOLUMINESCENCE 734 1.41.2.1 Types of Sonoluminescence 734 1.41.2.2 Spectroscopic Probes of Cavitation Conditions 734 1.41.3 SONOCHEMISTRY 735 1.41.3.1 Homogeneous Sonochemistry: Bond Breaking and Radical Formation 735 1.41.3.2 Applications of Sonochemistry to Materials Synthesis 736 1.41.3.3 Heterogeneous Sonochemistry: Reactions of Solids with Liquids 737 1.41.4 CONCLUSIONS 738 1.41.5 REFERENCES 739 1.41.1 INTRODUCTION Ultrasonic irradiation of liquids causes high-energy chemical reactions to occur, often with the emission of light.1–3 The origin of sonochemistry and sonoluminescence is acoustic cavitation: the formation, growth, and implosive collapse of bubbles in liquids irradiated with high-intensity sound. The collapse of bubbles caused by cavitation produces intense local heating and high pressures, with very short lifetimes. In clouds of cavitating bubbles, these hot-spots4–6 have equiva- lent temperatures of roughly 5,000 K, pressures of about 1,000 atm, and heating and cooling rates above 1010 KsÀ1. In single bubble cavitation, conditions may be even more extreme. Thus, cavita- tion can create extraordinary physical and chemical conditions in otherwise cold liquids. When liquids that contain solids are irradiated with ultrasound, related phenomena can occur. When cavitation occurs near an extended solid surface, cavity collapse is non-spherical and drives high-speed jets of liquid into the surface.7 These jets and associated shock waves can cause substantial surface damage and expose fresh, highly heated surfaces. -
Advanced Organic Chemistry/ Organic Synthesis – CH 621 Ultrasound
Advanced Organic Chemistry/ Organic Synthesis – CH 621 Ultrasound Assisted Organic Synthesis (Sonochemistry) Bela Torok Department of Chemistry University of Massachusetts Boston Boston, MA 1 Ultrasonics/Sonochemistry - Historical Overwiev Ultrasonics - Ultrasounds (20-10 000 kHz) - 1880 Piezoelectricity (Curie brothers) - 1893 Galton - 1912 TITANIC - 1912 Behm (Echo technique) - 1917 Langevin (Ultrasonic variation, Icebergs, Submarines) - 1945 Application in chemistry 2 Ultrasonics/Sonochemistry –Basics Frequency ranges of sound 3 Ultrasonics/Sonochemistry – Basics Sound transmission through a medium 4 Ultrasonics/Sonochemistry – Acoustic Cavitation Bubble size and cavitation dynamics Formation of an acoustic bubble Transient cavitation 5 Ultrasonics/Sonochemistry – Acoustic Cavitation Acoustic cavitation in a homogeneous liquid Suslick - ~ 4-5000 K 6 Ultrasonics/Sonochemistry – Acoustic Cavitation Acoustic cavitation in solid/liquid system 7 Ultrasonics/Sonochemistry – Acoustic Cavitation Acoustic cavitation in solid/liquid system 8 Ultrasonics/Sonochemistry – Acoustic Cavitation Acoustic cavitation in liquid/liquid system 9 Ultrasonics/Sonochemistry – Sonochemical Effect Specific ultrasonic effect ? Yes and No No - another internal heating approach Yes - The temperature dependence of EA of different reactions could be significantly different – change in selectivities - Very effective mixing - Cavitation - Surface cleaning 10 Ultrasonics/Sonochemistry – Experimental Parameters 1. Acoustic frequency Increasing frequency – increasing energy -
A Study of Visitors to Genome: the Secret of How Life Works
A STUDY OF VISITORS TO GENOME: THE SECRET OF HOW LIFE WORKS March 2004 Office of Policy and Analysis Washington, DC 20560-0405 Office of Policy and Analysis Study Team Ioana Munteanu Andrew Pekarik Whitney Watriss FOREWORD This study of Genome: The Secret of How Life Works focuses on visitors’ perceptions of the exhibition. It draws attention to interactive aspects of the exhibition as well as to underlying conceptual dimensions: basic genome science and applied genome science. To produce information on the success of the exhibition, it captures responses to key factors in the exhibit, such as visitor satisfaction with respect to interactive activities and visitor satisfaction concerning physical attributes and explores the relationships among these factors through correlational analysis. The study was designed and administered by Ioana Munteanu, who analyzed the data and wrote this report; several colleagues from the Office of Policy and Analysis offered helpful advice on various parts of the study. Carole M. P. Neves Director Office of Policy and Analysis PART I. BACKGROUND Fifty years ago, Nobel Prize winners Francis Crick and James Watson first visualized the three-dimensional molecular structure of deoxyribonucleic acid’s (DNA) double helix. Since they accomplished that extraordinary feat, scientists have made remarkable progress in the field of modern genomics, including sequencing the human genome.1 The traveling exhibition, Genome: The Secret of How Life Works, sponsored by Pfizer and produced by Clear Channel Entertainment-Exhibition, opened for display in a 5,000- square foot gallery in the Smithsonian Institution’s Arts and Industries Building (A&I Building) on June 6, 2003. -
New Trends in C–C Cross-Coupling Reactions: the Use of Unconventional Conditions
molecules Review New Trends in C–C Cross-Coupling Reactions: The Use of Unconventional Conditions Marta A. Andrade and Luísa M. D. R. S. Martins * Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; [email protected] * Correspondence: [email protected]; Tel.: +35-121-841-9389 Academic Editor: Giuseppe Cirillo Received: 30 October 2020; Accepted: 20 November 2020; Published: 24 November 2020 Abstract: The ever-growing interest in the cross-coupling reaction and its applications has increased exponentially in the last decade, owing to its efficiency and effectiveness. Transition metal-mediated cross-couplings reactions, such as Suzuki–Miyaura, Sonogashira, Heck, and others, are powerful tools for carbon–carbon bond formations and have become truly fundamental routes in catalysis, among other fields. Various greener strategies have emerged in recent years, given the widespread popularity of these important reactions. The present review comprises literature from 2015 onward covering the implementation of unconventional methodologies in carbon–carbon (C–C) cross-coupling reactions that embodies a variety of strategies, from the use of alternative energy sources to solvent- free and green media protocols. Keywords: cross-coupling reactions; microwave irradiation; ultrasounds; mechanochemistry; solvent-free; water; ionic liquids; deep eutectic solvents; sustainability 1. Introduction Cross-coupling reactions have attracted and inspired researchers in the academia and industry for decades, given its significance as a synthetic tool in modern organic synthesis. The continuous interest in cross-coupling reactions, with more than 40 years of history, has been mostly driven by its valuable contributions and applications in the medicinal and pharmaceutical industries. -
The Economic Impact and Functional Applications of Human Genetics and Genomics
The Economic Impact and Functional Applications of Human Genetics and Genomics Commissioned by the American Society of Human Genetics Produced by TEConomy Partners, LLC. Report Authors: Simon Tripp and Martin Grueber May 2021 TEConomy Partners, LLC (TEConomy) endeavors at all times to produce work of the highest quality, consistent with our contract commitments. However, because of the research and/or experimental nature of this work, the client undertakes the sole responsibility for the consequence of any use or misuse of, or inability to use, any information or result obtained from TEConomy, and TEConomy, its partners, or employees have no legal liability for the accuracy, adequacy, or efficacy thereof. Acknowledgements ASHG and the project authors wish to thank the following organizations for their generous support of this study. Invitae Corporation, San Francisco, CA Regeneron Pharmaceuticals, Inc., Tarrytown, NY The project authors express their sincere appreciation to the following indi- viduals who provided their advice and input to this project. ASHG Government and Public Advocacy Committee Lynn B. Jorde, PhD ASHG Government and Public Advocacy Committee (GPAC) Chair, President (2011) Professor and Chair of Human Genetics George and Dolores Eccles Institute of Human Genetics University of Utah School of Medicine Katrina Goddard, PhD ASHG GPAC Incoming Chair, Board of Directors (2018-2020) Distinguished Investigator, Associate Director, Science Programs Kaiser Permanente Northwest Melinda Aldrich, PhD, MPH Associate Professor, Department of Medicine, Division of Genetic Medicine Vanderbilt University Medical Center Wendy Chung, MD, PhD Professor of Pediatrics in Medicine and Director, Clinical Cancer Genetics Columbia University Mira Irons, MD Chief Health and Science Officer American Medical Association Peng Jin, PhD Professor and Chair, Department of Human Genetics Emory University Allison McCague, PhD Science Policy Analyst, Policy and Program Analysis Branch National Human Genome Research Institute Rebecca Meyer-Schuman, MS Human Genetics Ph.D. -
Genomic Sequencing of SARS-Cov-2: a Guide to Implementation for Maximum Impact on Public Health
Genomic sequencing of SARS-CoV-2 A guide to implementation for maximum impact on public health 8 January 2021 Genomic sequencing of SARS-CoV-2 A guide to implementation for maximum impact on public health 8 January 2021 Genomic sequencing of SARS-CoV-2: a guide to implementation for maximum impact on public health ISBN 978-92-4-001844-0 (electronic version) ISBN 978-92-4-001845-7 (print version) © World Health Organization 2021 Some rights reserved. This work is available under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 IGO licence (CC BY-NC-SA 3.0 IGO; https://creativecommons.org/licenses/by-nc-sa/3.0/igo). Under the terms of this licence, you may copy, redistribute and adapt the work for non-commercial purposes, provided the work is appropriately cited, as indicated below. In any use of this work, there should be no suggestion that WHO endorses any specific organization, products or services. The use of the WHO logo is not permitted. If you adapt the work, then you must license your work under the same or equivalent Creative Commons licence. If you create a translation of this work, you should add the following disclaimer along with the suggested citation: “This translation was not created by the World Health Organization (WHO). WHO is not responsible for the content or accuracy of this translation. The original English edition shall be the binding and authentic edition”. Any mediation relating to disputes arising under the licence shall be conducted in accordance with the mediation rules of the World Intellectual Property Organization (http://www.wipo.int/amc/en/mediation/rules/). -
1 Effects of High Intensity Ultrasound on Disaggregation of a Macromolecular 1 Procyanidin-Rich Fraction from Vitis Vinifera L
1 Effects of high intensity ultrasound on disaggregation of a macromolecular 2 procyanidin-rich fraction from Vitis vinifera L. seed extract and evaluation of its 3 antioxidant activity 4 5 Ana Muñoz-Labrador, Marin Prodanov and Mar Villamiel* 6 *Instituto de Investigación en Ciencias de la Alimentación CIAL (CSIC-UAM).C/Nicolás 7 Cabrera 9, Universidad Autónoma de Madrid, 28049 Madrid, España. 8 9 10 11 *Author to whom correspondence should be addressed: 12 Tel: +34 910017951 13 E-mail: [email protected] 14 1 15 Abstract 16 The impact of high intensity ultrasound (US, 45 and 20 kHz) on a purified macromolecular 17 fraction (more than 85% of polymeric procyanidins) from grape seed extract was 18 investigated. Matrix-Assisted Laser Desorption/Ionisation (MALDI TOF), Reverse Phase 19 High Performance Liquid Chromatography (RP-HPLC) and Fourier-transform infrared 20 spectroscopy (FTIR) revealed a modification in the chemical structure of these 21 macromolecules treated by US and, particularly, bath US produced a considerable increase 22 of up to 49, 41 and 35%, respectively, of catechins and oligomeric and polymeric 23 procyanidin contents of the treated purified fraction. Bath US also produced, an important 24 increase in the number of procyanidins with higher molecular mass (up to decamers) and an 25 overall increase in the mass signal intensities in most of the detected B-type procyanidin 26 series, as well as an important increase of the antioxidant activity of the macromolecular 27 fraction of procyanidins. These results could be ascribed to a certain disaggregation of 28 procyanidins linked to other biopolymers, such as proteins and/or polysaccharides, 29 indicating that US is an efficient technology to modify the chemical structure and hence the 30 bioactivity of tannins.